5 Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
8 [Tom Wu <thomwu@cisco.com> and Ben Laurie]
10 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
13 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
16 *) New function DH_compute_key_padded() to compute a DH key and pad with
17 leading zeroes if needed: this complies with SP800-56A et al.
20 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
21 anything, incomplete, subject to change and largely untested at present.
24 *) Modify fipscanisteronly build option to only build the necessary object
25 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
28 *) Add experimental option FIPSSYMS to give all symbols in
29 fipscanister.o and FIPS or fips prefix. This will avoid
30 conflicts with future versions of OpenSSL. Add perl script
31 util/fipsas.pl to preprocess assembly language source files
32 and rename any affected symbols.
35 *) Add selftest checks and algorithm block of non-fips algorithms in
36 FIPS mode. Remove DES2 from selftests.
39 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
40 return internal method without any ENGINE dependencies. Add new
41 tiny fips sign and verify functions.
44 *) New build option no-ec2m to disable characteristic 2 code.
47 *) New build option "fipscanisteronly". This only builds fipscanister.o
48 and (currently) associated fips utilities. Uses the file Makefile.fips
49 instead of Makefile.org as the prototype.
52 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
53 Update fips_gcmtest to use IV generator.
56 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
57 setting output buffer to NULL. The *Final function must be
58 called although it will not retrieve any additional data. The tag
59 can be set or retrieved with a ctrl. The IV length is by default 12
60 bytes (96 bits) but can be set to an alternative value. If the IV
61 length exceeds the maximum IV length (currently 16 bytes) it cannot be
65 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
66 underlying do_cipher function handles all cipher semantics itself
67 including padding and finalisation. This is useful if (for example)
68 an ENGINE cipher handles block padding itself. The behaviour of
69 do_cipher is subtly changed if this flag is set: the return value
70 is the number of characters written to the output buffer (zero is
71 no longer an error code) or a negative error code. Also if the
72 input buffer is NULL and length 0 finalisation should be performed.
75 *) If a candidate issuer certificate is already part of the constructed
76 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
79 *) Improve forward-security support: add functions
81 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
82 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
84 for use by SSL/TLS servers; the callback function will be called whenever a
85 new session is created, and gets to decide whether the session may be
86 cached to make it resumable (return 0) or not (return 1). (As by the
87 SSL/TLS protocol specifications, the session_id sent by the server will be
88 empty to indicate that the session is not resumable; also, the server will
89 not generate RFC 4507 (RFC 5077) session tickets.)
91 A simple reasonable callback implementation is to return is_forward_secure.
92 This parameter will be set to 1 or 0 depending on the ciphersuite selected
93 by the SSL/TLS server library, indicating whether it can provide forward
95 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
97 *) Add Next Protocol Negotiation,
98 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
99 disabled with a no-npn flag to config or Configure. Code donated
101 [Adam Langley <agl@google.com> and Ben Laurie]
103 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
104 all platforms. Move ssize_t definition from e_os.h to the public
105 header file e_os2.h as it now appears in public header file cms.h
108 *) New function OPENSSL_gmtime_diff to find the difference in days
109 and seconds between two tm structures. This will be used to provide
110 additional functionality for ASN1_TIME.
113 *) New -sigopt option to the ca, req and x509 utilities. Additional
114 signature parameters can be passed using this option and in
118 *) Add RSA PSS signing function. This will generate and set the
119 appropriate AlgorithmIdentifiers for PSS based on those in the
120 corresponding EVP_MD_CTX structure. No application support yet.
123 *) Support for companion algorithm specific ASN1 signing routines.
124 New function ASN1_item_sign_ctx() signs a pre-initialised
125 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
126 the appropriate parameters.
129 *) Add new algorithm specific ASN1 verification initialisation function
130 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
131 handling will be the same no matter what EVP_PKEY_METHOD is used.
132 Add a PSS handler to support verification of PSS signatures: checked
133 against a number of sample certificates.
136 *) Add signature printing for PSS. Add PSS OIDs.
137 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
139 *) Add algorithm specific signature printing. An individual ASN1 method
140 can now print out signatures instead of the standard hex dump.
142 More complex signatures (e.g. PSS) can print out more meaningful
143 information. Include DSA version that prints out the signature
147 *) Add -trusted_first option which attempts to find certificates in the
148 trusted store even if an untrusted chain is also supplied.
151 *) Initial experimental support for explicitly trusted non-root CAs.
152 OpenSSL still tries to build a complete chain to a root but if an
153 intermediate CA has a trust setting included that is used. The first
154 setting is used: whether to trust or reject.
157 *) New -verify_name option in command line utilities to set verification
161 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
162 Add CMAC pkey methods.
165 *) Experiemental regnegotiation in s_server -www mode. If the client
166 browses /reneg connection is renegotiated. If /renegcert it is
167 renegotiated requesting a certificate.
170 *) Add an "external" session cache for debugging purposes to s_server. This
171 should help trace issues which normally are only apparent in deployed
172 multi-process servers.
175 *) Experiemental password based recipient info support for CMS library:
176 implementing RFC3211.
179 *) Split password based encryption into PBES2 and PBKDF2 functions. This
180 neatly separates the code into cipher and PBE sections and is required
181 for some algorithms that split PBES2 into separate pieces (such as
185 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
186 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
187 BIO_set_cipher() and some obscure PEM functions were changed so they
188 can now return an error. The RAND changes required a change to the
189 RAND_METHOD structure.
192 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
193 a gcc attribute to warn if the result of a function is ignored. This
194 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
195 whose return value is often ignored.
198 Changes between 1.0.0d and 1.0.1 [xx XXX xxxx]
200 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
203 *) Add EC_GFp_nistp224_method(), a 64-bit optimized implementation for
204 elliptic curve NIST-P224 with constant-time single point multiplication on
205 typical inputs. EC_GROUP_new_by_curve_name() will automatically use this
206 (while EC_GROUP_new_curve_GFp() currently won't and prefers the more
207 flexible implementations).
209 The implementation requires support for the nonstandard type __uint128_t,
210 and so is disabled by default. To include this in your build of OpenSSL,
211 use -DEC_NISTP224_64_GCC_128 on the Configure (or config) command line,
212 and run "make depend" (or "make update").
213 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
215 *) Permit abbreviated handshakes when renegotiating using the function
216 SSL_renegotiate_abbreviated().
217 [Robin Seggelmann <seggelmann@fh-muenster.de>]
219 *) Add call to ENGINE_register_all_complete() to
220 ENGINE_load_builtin_engines(), so some implementations get used
221 automatically instead of needing explicit application support.
224 *) Add support for TLS key exporter as described in RFC5705.
225 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
227 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
228 a few changes are required:
230 Add SSL_OP_NO_TLSv1_1 flag.
232 Update version checking logic to handle version 1.1.
233 Add explicit IV handling (ported from DTLS code).
234 Add command line options to s_client/s_server.
237 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
239 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
240 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
242 *) Fix bug in string printing code: if *any* escaping is enabled we must
243 escape the escape character (backslash) or the resulting string is
247 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
249 *) Disable code workaround for ancient and obsolete Netscape browsers
250 and servers: an attacker can use it in a ciphersuite downgrade attack.
251 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
254 *) Fixed J-PAKE implementation error, originally discovered by
255 Sebastien Martini, further info and confirmation from Stefan
256 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
259 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
261 *) Fix extension code to avoid race conditions which can result in a buffer
262 overrun vulnerability: resumed sessions must not be modified as they can
263 be shared by multiple threads. CVE-2010-3864
266 *) Fix WIN32 build system to correctly link an ENGINE directory into
270 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
272 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
274 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
276 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
278 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
279 context. The operation can be customised via the ctrl mechanism in
280 case ENGINEs want to include additional functionality.
283 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
286 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
287 output hashes compatible with older versions of OpenSSL.
288 [Willy Weisz <weisz@vcpc.univie.ac.at>]
290 *) Fix compression algorithm handling: if resuming a session use the
291 compression algorithm of the resumed session instead of determining
292 it from client hello again. Don't allow server to change algorithm.
295 *) Add load_crls() function to apps tidying load_certs() too. Add option
296 to verify utility to allow additional CRLs to be included.
299 *) Update OCSP request code to permit adding custom headers to the request:
300 some responders need this.
303 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
305 [Julia Lawall <julia@diku.dk>]
307 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
308 needlessly dereferenced structures, used obsolete functions and
309 didn't handle all updated verify codes correctly.
312 *) Disable MD2 in the default configuration.
315 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
316 indicate the initial BIO being pushed or popped. This makes it possible
317 to determine whether the BIO is the one explicitly called or as a result
318 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
319 it handles reference counts correctly and doesn't zero out the I/O bio
320 when it is not being explicitly popped. WARNING: applications which
321 included workarounds for the old buggy behaviour will need to be modified
322 or they could free up already freed BIOs.
325 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
326 renaming to all platforms (within the 0.9.8 branch, this was
327 done conditionally on Netware platforms to avoid a name clash).
328 [Guenter <lists@gknw.net>]
330 *) Add ECDHE and PSK support to DTLS.
331 [Michael Tuexen <tuexen@fh-muenster.de>]
333 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
337 *) Add "missing" function EVP_MD_flags() (without this the only way to
338 retrieve a digest flags is by accessing the structure directly. Update
339 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
340 or cipher is registered as in the "from" argument. Print out all
341 registered digests in the dgst usage message instead of manually
342 attempting to work them out.
345 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
346 this allows the use of compression and extensions. Change default cipher
347 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
348 by default unless an application cipher string requests it.
351 *) Alter match criteria in PKCS12_parse(). It used to try to use local
352 key ids to find matching certificates and keys but some PKCS#12 files
353 don't follow the (somewhat unwritten) rules and this strategy fails.
354 Now just gather all certificates together and the first private key
355 then look for the first certificate that matches the key.
358 *) Support use of registered digest and cipher names for dgst and cipher
359 commands instead of having to add each one as a special case. So now
366 openssl dgst -sha256 foo
368 and this works for ENGINE based algorithms too.
372 *) Update Gost ENGINE to support parameter files.
373 [Victor B. Wagner <vitus@cryptocom.ru>]
375 *) Support GeneralizedTime in ca utility.
376 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
378 *) Enhance the hash format used for certificate directory links. The new
379 form uses the canonical encoding (meaning equivalent names will work
380 even if they aren't identical) and uses SHA1 instead of MD5. This form
381 is incompatible with the older format and as a result c_rehash should
382 be used to rebuild symbolic links.
385 *) Make PKCS#8 the default write format for private keys, replacing the
386 traditional format. This form is standardised, more secure and doesn't
387 include an implicit MD5 dependency.
390 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
391 committed to OpenSSL should pass this lot as a minimum.
394 *) Add session ticket override functionality for use by EAP-FAST.
395 [Jouni Malinen <j@w1.fi>]
397 *) Modify HMAC functions to return a value. Since these can be implemented
398 in an ENGINE errors can occur.
401 *) Type-checked OBJ_bsearch_ex.
404 *) Type-checked OBJ_bsearch. Also some constification necessitated
405 by type-checking. Still to come: TXT_DB, bsearch(?),
406 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
410 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
411 seconds to a tm structure directly, instead of going through OS
412 specific date routines. This avoids any issues with OS routines such
413 as the year 2038 bug. New *_adj() functions for ASN1 time structures
414 and X509_time_adj_ex() to cover the extended range. The existing
415 X509_time_adj() is still usable and will no longer have any date issues.
418 *) Delta CRL support. New use deltas option which will attempt to locate
419 and search any appropriate delta CRLs available.
421 This work was sponsored by Google.
424 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
425 code and add additional score elements. Validate alternate CRL paths
426 as part of the CRL checking and indicate a new error "CRL path validation
427 error" in this case. Applications wanting additional details can use
428 the verify callback and check the new "parent" field. If this is not
429 NULL CRL path validation is taking place. Existing applications wont
430 see this because it requires extended CRL support which is off by
433 This work was sponsored by Google.
436 *) Support for freshest CRL extension.
438 This work was sponsored by Google.
441 *) Initial indirect CRL support. Currently only supported in the CRLs
442 passed directly and not via lookup. Process certificate issuer
443 CRL entry extension and lookup CRL entries by bother issuer name
444 and serial number. Check and process CRL issuer entry in IDP extension.
446 This work was sponsored by Google.
449 *) Add support for distinct certificate and CRL paths. The CRL issuer
450 certificate is validated separately in this case. Only enabled if
451 an extended CRL support flag is set: this flag will enable additional
452 CRL functionality in future.
454 This work was sponsored by Google.
457 *) Add support for policy mappings extension.
459 This work was sponsored by Google.
462 *) Fixes to pathlength constraint, self issued certificate handling,
463 policy processing to align with RFC3280 and PKITS tests.
465 This work was sponsored by Google.
468 *) Support for name constraints certificate extension. DN, email, DNS
469 and URI types are currently supported.
471 This work was sponsored by Google.
474 *) To cater for systems that provide a pointer-based thread ID rather
475 than numeric, deprecate the current numeric thread ID mechanism and
476 replace it with a structure and associated callback type. This
477 mechanism allows a numeric "hash" to be extracted from a thread ID in
478 either case, and on platforms where pointers are larger than 'long',
479 mixing is done to help ensure the numeric 'hash' is usable even if it
480 can't be guaranteed unique. The default mechanism is to use "&errno"
481 as a pointer-based thread ID to distinguish between threads.
483 Applications that want to provide their own thread IDs should now use
484 CRYPTO_THREADID_set_callback() to register a callback that will call
485 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
487 Note that ERR_remove_state() is now deprecated, because it is tied
488 to the assumption that thread IDs are numeric. ERR_remove_state(0)
489 to free the current thread's error state should be replaced by
490 ERR_remove_thread_state(NULL).
492 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
493 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
494 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
495 application was previously providing a numeric thread callback that
496 was inappropriate for distinguishing threads, then uniqueness might
497 have been obtained with &errno that happened immediately in the
498 intermediate development versions of OpenSSL; this is no longer the
499 case, the numeric thread callback will now override the automatic use
501 [Geoff Thorpe, with help from Bodo Moeller]
503 *) Initial support for different CRL issuing certificates. This covers a
504 simple case where the self issued certificates in the chain exist and
505 the real CRL issuer is higher in the existing chain.
507 This work was sponsored by Google.
510 *) Removed effectively defunct crypto/store from the build.
513 *) Revamp of STACK to provide stronger type-checking. Still to come:
514 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
515 ASN1_STRING, CONF_VALUE.
518 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
519 RAM on SSL connections. This option can save about 34k per idle SSL.
522 *) Revamp of LHASH to provide stronger type-checking. Still to come:
523 STACK, TXT_DB, bsearch, qsort.
526 *) Initial support for Cryptographic Message Syntax (aka CMS) based
527 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
528 support for data, signedData, compressedData, digestedData and
529 encryptedData, envelopedData types included. Scripts to check against
530 RFC4134 examples draft and interop and consistency checks of many
531 content types and variants.
534 *) Add options to enc utility to support use of zlib compression BIO.
537 *) Extend mk1mf to support importing of options and assembly language
538 files from Configure script, currently only included in VC-WIN32.
539 The assembly language rules can now optionally generate the source
540 files from the associated perl scripts.
543 *) Implement remaining functionality needed to support GOST ciphersuites.
544 Interop testing has been performed using CryptoPro implementations.
545 [Victor B. Wagner <vitus@cryptocom.ru>]
547 *) s390x assembler pack.
550 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
554 *) Implement Opaque PRF Input TLS extension as specified in
555 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
556 official specification yet and no extension type assignment by
557 IANA exists, this extension (for now) will have to be explicitly
558 enabled when building OpenSSL by providing the extension number
559 to use. For example, specify an option
561 -DTLSEXT_TYPE_opaque_prf_input=0x9527
563 to the "config" or "Configure" script to enable the extension,
564 assuming extension number 0x9527 (which is a completely arbitrary
565 and unofficial assignment based on the MD5 hash of the Internet
566 Draft). Note that by doing so, you potentially lose
567 interoperability with other TLS implementations since these might
568 be using the same extension number for other purposes.
570 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
571 opaque PRF input value to use in the handshake. This will create
572 an interal copy of the length-'len' string at 'src', and will
573 return non-zero for success.
575 To get more control and flexibility, provide a callback function
578 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
579 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
583 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
586 Callback function 'cb' will be called in handshakes, and is
587 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
588 Argument 'arg' is for application purposes (the value as given to
589 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
590 be provided to the callback function). The callback function
591 has to return non-zero to report success: usually 1 to use opaque
592 PRF input just if possible, or 2 to enforce use of the opaque PRF
593 input. In the latter case, the library will abort the handshake
594 if opaque PRF input is not successfully negotiated.
596 Arguments 'peerinput' and 'len' given to the callback function
597 will always be NULL and 0 in the case of a client. A server will
598 see the client's opaque PRF input through these variables if
599 available (NULL and 0 otherwise). Note that if the server
600 provides an opaque PRF input, the length must be the same as the
601 length of the client's opaque PRF input.
603 Note that the callback function will only be called when creating
604 a new session (session resumption can resume whatever was
605 previously negotiated), and will not be called in SSL 2.0
606 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
607 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
608 for applications that need to enforce opaque PRF input.
612 *) Update ssl code to support digests other than SHA1+MD5 for handshake
615 [Victor B. Wagner <vitus@cryptocom.ru>]
617 *) Add RFC4507 support to OpenSSL. This includes the corrections in
618 RFC4507bis. The encrypted ticket format is an encrypted encoded
619 SSL_SESSION structure, that way new session features are automatically
622 If a client application caches session in an SSL_SESSION structure
623 support is transparent because tickets are now stored in the encoded
626 The SSL_CTX structure automatically generates keys for ticket
627 protection in servers so again support should be possible
628 with no application modification.
630 If a client or server wishes to disable RFC4507 support then the option
631 SSL_OP_NO_TICKET can be set.
633 Add a TLS extension debugging callback to allow the contents of any client
634 or server extensions to be examined.
636 This work was sponsored by Google.
639 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
640 OpenSSL should now compile cleanly on gcc 4.2
641 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
643 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
644 support including streaming MAC support: this is required for GOST
646 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
648 *) Add option -stream to use PKCS#7 streaming in smime utility. New
649 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
650 to output in BER and PEM format.
653 *) Experimental support for use of HMAC via EVP_PKEY interface. This
654 allows HMAC to be handled via the EVP_DigestSign*() interface. The
655 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
656 ENGINE support for HMAC keys which are unextractable. New -mac and
657 -macopt options to dgst utility.
660 *) New option -sigopt to dgst utility. Update dgst to use
661 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
662 alternative signing paramaters such as X9.31 or PSS in the dgst
666 *) Change ssl_cipher_apply_rule(), the internal function that does
667 the work each time a ciphersuite string requests enabling
668 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
669 removing ("!foo+bar") a class of ciphersuites: Now it maintains
670 the order of disabled ciphersuites such that those ciphersuites
671 that most recently went from enabled to disabled not only stay
672 in order with respect to each other, but also have higher priority
673 than other disabled ciphersuites the next time ciphersuites are
676 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
677 the same ciphersuites as with "HIGH" alone, but in a specific
678 order where the PSK ciphersuites come first (since they are the
679 most recently disabled ciphersuites when "HIGH" is parsed).
681 Also, change ssl_create_cipher_list() (using this new
682 funcionality) such that between otherwise identical
683 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
687 *) Change ssl_create_cipher_list() so that it automatically
688 arranges the ciphersuites in reasonable order before starting
689 to process the rule string. Thus, the definition for "DEFAULT"
690 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
691 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
692 This makes it much easier to arrive at a reasonable default order
693 in applications for which anonymous ciphers are OK (meaning
694 that you can't actually use DEFAULT).
695 [Bodo Moeller; suggested by Victor Duchovni]
697 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
698 processing) into multiple integers instead of setting
699 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
700 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
701 (These masks as well as the individual bit definitions are hidden
702 away into the non-exported interface ssl/ssl_locl.h, so this
703 change to the definition of the SSL_CIPHER structure shouldn't
704 affect applications.) This give us more bits for each of these
705 categories, so there is no longer a need to coagulate AES128 and
706 AES256 into a single algorithm bit, and to coagulate Camellia128
707 and Camellia256 into a single algorithm bit, which has led to all
710 Thus, among other things, the kludge introduced in 0.9.7m and
711 0.9.8e for masking out AES256 independently of AES128 or masking
712 out Camellia256 independently of AES256 is not needed here in 0.9.9.
714 With the change, we also introduce new ciphersuite aliases that
715 so far were missing: "AES128", "AES256", "CAMELLIA128", and
719 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
720 Use the leftmost N bytes of the signature input if the input is
721 larger than the prime q (with N being the size in bytes of q).
724 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
725 it yet and it is largely untested.
728 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
731 *) Initial incomplete changes to avoid need for function casts in OpenSSL
732 some compilers (gcc 4.2 and later) reject their use. Safestack is
733 reimplemented. Update ASN1 to avoid use of legacy functions.
736 *) Win32/64 targets are linked with Winsock2.
739 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
740 to external functions. This can be used to increase CRL handling
741 efficiency especially when CRLs are very large by (for example) storing
742 the CRL revoked certificates in a database.
745 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
746 new CRLs added to a directory can be used. New command line option
747 -verify_return_error to s_client and s_server. This causes real errors
748 to be returned by the verify callback instead of carrying on no matter
749 what. This reflects the way a "real world" verify callback would behave.
752 *) GOST engine, supporting several GOST algorithms and public key formats.
753 Kindly donated by Cryptocom.
756 *) Partial support for Issuing Distribution Point CRL extension. CRLs
757 partitioned by DP are handled but no indirect CRL or reason partitioning
758 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
759 selected via a scoring technique which handles IDP and AKID in CRLs.
762 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
763 will ultimately be used for all verify operations: this will remove the
764 X509_STORE dependency on certificate verification and allow alternative
765 lookup methods. X509_STORE based implementations of these two callbacks.
768 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
769 Modify get_crl() to find a valid (unexpired) CRL if possible.
772 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
773 this would be called X509_CRL_cmp() but that name is already used by
774 a function that just compares CRL issuer names. Cache several CRL
775 extensions in X509_CRL structure and cache CRLDP in X509.
778 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
779 this maps equivalent X509_NAME structures into a consistent structure.
780 Name comparison can then be performed rapidly using memcmp().
783 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
787 *) Allow digests to supply their own micalg string for S/MIME type using
788 the ctrl EVP_MD_CTRL_MICALG.
791 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
792 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
793 ctrl. It can then customise the structure before and/or after signing
797 *) New function OBJ_add_sigid() to allow application defined signature OIDs
798 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
799 to free up any added signature OIDs.
802 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
803 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
804 digest and cipher tables. New options added to openssl utility:
805 list-message-digest-algorithms and list-cipher-algorithms.
808 *) Change the array representation of binary polynomials: the list
809 of degrees of non-zero coefficients is now terminated with -1.
810 Previously it was terminated with 0, which was also part of the
811 value; thus, the array representation was not applicable to
812 polynomials where t^0 has coefficient zero. This change makes
813 the array representation useful in a more general context.
816 *) Various modifications and fixes to SSL/TLS cipher string
817 handling. For ECC, the code now distinguishes between fixed ECDH
818 with RSA certificates on the one hand and with ECDSA certificates
819 on the other hand, since these are separate ciphersuites. The
820 unused code for Fortezza ciphersuites has been removed.
822 For consistency with EDH, ephemeral ECDH is now called "EECDH"
823 (not "ECDHE"). For consistency with the code for DH
824 certificates, use of ECDH certificates is now considered ECDH
825 authentication, not RSA or ECDSA authentication (the latter is
826 merely the CA's signing algorithm and not actively used in the
829 The temporary ciphersuite alias "ECCdraft" is no longer
830 available, and ECC ciphersuites are no longer excluded from "ALL"
831 and "DEFAULT". The following aliases now exist for RFC 4492
832 ciphersuites, most of these by analogy with the DH case:
834 kECDHr - ECDH cert, signed with RSA
835 kECDHe - ECDH cert, signed with ECDSA
836 kECDH - ECDH cert (signed with either RSA or ECDSA)
837 kEECDH - ephemeral ECDH
838 ECDH - ECDH cert or ephemeral ECDH
844 AECDH - anonymous ECDH
845 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
849 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
850 Use correct micalg parameters depending on digest(s) in signed message.
853 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
854 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
857 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
858 an engine to register a method. Add ENGINE lookups for methods and
859 functional reference processing.
862 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
863 EVP_{Sign,Verify}* which allow an application to customise the signature
867 *) New -resign option to smime utility. This adds one or more signers
868 to an existing PKCS#7 signedData structure. Also -md option to use an
869 alternative message digest algorithm for signing.
872 *) Tidy up PKCS#7 routines and add new functions to make it easier to
873 create PKCS7 structures containing multiple signers. Update smime
874 application to support multiple signers.
877 *) New -macalg option to pkcs12 utility to allow setting of an alternative
881 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
882 Reorganize PBE internals to lookup from a static table using NIDs,
883 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
884 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
885 PRF which will be automatically used with PBES2.
888 *) Replace the algorithm specific calls to generate keys in "req" with the
892 *) Update PKCS#7 enveloped data routines to use new API. This is now
893 supported by any public key method supporting the encrypt operation. A
894 ctrl is added to allow the public key algorithm to examine or modify
895 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
899 *) Add a ctrl to asn1 method to allow a public key algorithm to express
900 a default digest type to use. In most cases this will be SHA1 but some
901 algorithms (such as GOST) need to specify an alternative digest. The
902 return value indicates how strong the prefernce is 1 means optional and
903 2 is mandatory (that is it is the only supported type). Modify
904 ASN1_item_sign() to accept a NULL digest argument to indicate it should
905 use the default md. Update openssl utilities to use the default digest
906 type for signing if it is not explicitly indicated.
909 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
910 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
911 signing method from the key type. This effectively removes the link
912 between digests and public key types.
915 *) Add an OID cross reference table and utility functions. Its purpose is to
916 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
917 rsaEncryption. This will allow some of the algorithm specific hackery
918 needed to use the correct OID to be removed.
921 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
922 structures for PKCS7_sign(). They are now set up by the relevant public
926 *) Add provisional EC pkey method with support for ECDSA and ECDH.
929 *) Add support for key derivation (agreement) in the API, DH method and
933 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
934 public and private key formats. As a side effect these add additional
935 command line functionality not previously available: DSA signatures can be
936 generated and verified using pkeyutl and DH key support and generation in
941 [Oliver Tappe <zooey@hirschkaefer.de>]
943 *) New make target "install_html_docs" installs HTML renditions of the
945 [Oliver Tappe <zooey@hirschkaefer.de>]
947 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
948 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
949 support key and parameter generation and add initial key generation
950 functionality for RSA.
953 *) Add functions for main EVP_PKEY_method operations. The undocumented
954 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
955 EVP_PKEY_{encrypt,decrypt}_old.
958 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
959 key API, doesn't do much yet.
962 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
963 public key algorithms. New option to openssl utility:
964 "list-public-key-algorithms" to print out info.
967 *) Implement the Supported Elliptic Curves Extension for
968 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
971 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
972 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
975 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
976 utilities such as rsa, dsa, dsaparam etc except they process any key
980 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
981 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
982 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
986 *) Initial support for pluggable public key ASN1.
987 De-spaghettify the public key ASN1 handling. Move public and private
988 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
989 algorithm specific handling to a single module within the relevant
990 algorithm directory. Add functions to allow (near) opaque processing
991 of public and private key structures.
994 *) Implement the Supported Point Formats Extension for
995 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
998 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
999 for the psk identity [hint] and the psk callback functions to the
1000 SSL_SESSION, SSL and SSL_CTX structure.
1003 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1007 SSL_CTX_use_psk_identity_hint
1008 SSL_get_psk_identity_hint
1009 SSL_get_psk_identity
1010 SSL_use_psk_identity_hint
1012 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1014 *) Add RFC 3161 compliant time stamp request creation, response generation
1015 and response verification functionality.
1016 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1018 *) Add initial support for TLS extensions, specifically for the server_name
1019 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1020 have new members for a host name. The SSL data structure has an
1021 additional member SSL_CTX *initial_ctx so that new sessions can be
1022 stored in that context to allow for session resumption, even after the
1023 SSL has been switched to a new SSL_CTX in reaction to a client's
1024 server_name extension.
1026 New functions (subject to change):
1028 SSL_get_servername()
1029 SSL_get_servername_type()
1032 New CTRL codes and macros (subject to change):
1034 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1035 - SSL_CTX_set_tlsext_servername_callback()
1036 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1037 - SSL_CTX_set_tlsext_servername_arg()
1038 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1040 openssl s_client has a new '-servername ...' option.
1042 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1043 '-key2 ...', '-servername_fatal' (subject to change). This allows
1044 testing the HostName extension for a specific single host name ('-cert'
1045 and '-key' remain fallbacks for handshakes without HostName
1046 negotiation). If the unrecogninzed_name alert has to be sent, this by
1047 default is a warning; it becomes fatal with the '-servername_fatal'
1050 [Peter Sylvester, Remy Allais, Christophe Renou]
1052 *) Whirlpool hash implementation is added.
1055 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1056 bn(64,32). Because of instruction set limitations it doesn't have
1057 any negative impact on performance. This was done mostly in order
1058 to make it possible to share assembler modules, such as bn_mul_mont
1059 implementations, between 32- and 64-bit builds without hassle.
1062 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1063 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1067 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1068 dedicated Montgomery multiplication procedure, is introduced.
1069 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1070 "64-bit" performance on certain 32-bit targets.
1073 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1074 in SSL structures. New SSL ctrl to set maximum send fragment size.
1075 Save memory by seeting the I/O buffer sizes dynamically instead of
1076 using the maximum available value.
1079 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1080 in addition to the text details.
1083 *) Very, very preliminary EXPERIMENTAL support for printing of general
1084 ASN1 structures. This currently produces rather ugly output and doesn't
1085 handle several customised structures at all.
1088 *) Integrated support for PVK file format and some related formats such
1089 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1090 these in the 'rsa' and 'dsa' utilities.
1093 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1096 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1097 place for the (very old) "NETSCAPE" format certificates which are now
1098 handled using new ASN1 code equivalents.
1101 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1102 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1103 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1106 *) Modify CRL distribution points extension code to print out previously
1107 unsupported fields. Enhance extension setting code to allow setting of
1111 *) Add print and set support for Issuing Distribution Point CRL extension.
1114 *) Change 'Configure' script to enable Camellia by default.
1117 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1119 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1120 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1122 *) Fix bug in string printing code: if *any* escaping is enabled we must
1123 escape the escape character (backslash) or the resulting string is
1127 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1129 *) Disable code workaround for ancient and obsolete Netscape browsers
1130 and servers: an attacker can use it in a ciphersuite downgrade attack.
1131 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1134 *) Fixed J-PAKE implementation error, originally discovered by
1135 Sebastien Martini, further info and confirmation from Stefan
1136 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1139 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1141 *) Fix extension code to avoid race conditions which can result in a buffer
1142 overrun vulnerability: resumed sessions must not be modified as they can
1143 be shared by multiple threads. CVE-2010-3864
1146 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1149 *) Don't reencode certificate when calculating signature: cache and use
1150 the original encoding instead. This makes signature verification of
1151 some broken encodings work correctly.
1154 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1155 is also one of the inputs.
1156 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1158 *) Don't repeatedly append PBE algorithms to table if they already exist.
1159 Sort table on each new add. This effectively makes the table read only
1160 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1164 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1166 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1169 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1170 access or freeing data twice (CVE-2010-0742)
1171 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1173 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1174 common in certificates and some applications which only call
1175 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1179 Reduce copying into .apps and .test in makevms.com
1180 Don't try to use blank CA certificate in CA.com
1181 Allow use of C files from original directories in maketests.com
1182 [Steven M. Schweda" <sms@antinode.info>]
1184 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1186 *) When rejecting SSL/TLS records due to an incorrect version number, never
1187 update s->server with a new major version number. As of
1188 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1189 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1190 the previous behavior could result in a read attempt at NULL when
1191 receiving specific incorrect SSL/TLS records once record payload
1192 protection is active. (CVE-2010-0740)
1193 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1195 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1196 could be crashed if the relevant tables were not present (e.g. chrooted).
1197 [Tomas Hoger <thoger@redhat.com>]
1199 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1201 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1202 [Martin Olsson, Neel Mehta]
1204 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1205 accommodate for stack sorting, always a write lock!).
1208 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1209 excessive delays in the RAND_poll(): over a minute. As a workaround
1210 include a time check in the inner Heap32Next loop too.
1213 *) The code that handled flushing of data in SSL/TLS originally used the
1214 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1215 the problem outlined in PR#1949. The fix suggested there however can
1216 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1217 of Apache). So instead simplify the code to flush unconditionally.
1218 This should be fine since flushing with no data to flush is a no op.
1221 *) Handle TLS versions 2.0 and later properly and correctly use the
1222 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1223 off ancient servers have a habit of sticking around for a while...
1226 *) Modify compression code so it frees up structures without using the
1227 ex_data callbacks. This works around a problem where some applications
1228 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1229 restarting) then use compression (e.g. SSL with compression) later.
1230 This results in significant per-connection memory leaks and
1231 has caused some security issues including CVE-2008-1678 and
1235 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1236 change when encrypting or decrypting.
1239 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1240 connect and renegotiate with servers which do not support RI.
1241 Until RI is more widely deployed this option is enabled by default.
1244 *) Add "missing" ssl ctrls to clear options and mode.
1247 *) If client attempts to renegotiate and doesn't support RI respond with
1248 a no_renegotiation alert as required by RFC5746. Some renegotiating
1249 TLS clients will continue a connection gracefully when they receive
1250 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1251 waiting for a server hello which it will never receive. Now we treat a
1252 received no_renegotiation alert as a fatal error. This is because
1253 applications requesting a renegotiation might well expect it to succeed
1254 and would have no code in place to handle the server denying it so the
1255 only safe thing to do is to terminate the connection.
1258 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1259 peer supports secure renegotiation and 0 otherwise. Print out peer
1260 renegotiation support in s_client/s_server.
1263 *) Replace the highly broken and deprecated SPKAC certification method with
1264 the updated NID creation version. This should correctly handle UTF8.
1267 *) Implement RFC5746. Re-enable renegotiation but require the extension
1268 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1269 turns out to be a bad idea. It has been replaced by
1270 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1271 SSL_CTX_set_options(). This is really not recommended unless you
1272 know what you are doing.
1273 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1275 *) Fixes to stateless session resumption handling. Use initial_ctx when
1276 issuing and attempting to decrypt tickets in case it has changed during
1277 servername handling. Use a non-zero length session ID when attempting
1278 stateless session resumption: this makes it possible to determine if
1279 a resumption has occurred immediately after receiving server hello
1280 (several places in OpenSSL subtly assume this) instead of later in
1284 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1285 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1286 fixes for a few places where the return code is not checked
1288 [Julia Lawall <julia@diku.dk>]
1290 *) Add --strict-warnings option to Configure script to include devteam
1291 warnings in other configurations.
1294 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1295 makes it possible to install openssl libraries in locations which
1296 have names other than "lib", for example "/usr/lib64" which some
1298 [Steve Henson, based on patch from Jeremy Utley]
1300 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1301 X690 8.9.12 and can produce some misleading textual output of OIDs.
1302 [Steve Henson, reported by Dan Kaminsky]
1304 *) Delete MD2 from algorithm tables. This follows the recommendation in
1305 several standards that it is not used in new applications due to
1306 several cryptographic weaknesses. For binary compatibility reasons
1307 the MD2 API is still compiled in by default.
1310 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1314 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1315 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1317 [Guenter <lists@gknw.net>]
1319 *) Fix the server certificate chain building code to use X509_verify_cert(),
1320 it used to have an ad-hoc builder which was unable to cope with anything
1321 other than a simple chain.
1322 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1324 *) Don't check self signed certificate signatures in X509_verify_cert()
1325 by default (a flag can override this): it just wastes time without
1326 adding any security. As a useful side effect self signed root CAs
1327 with non-FIPS digests are now usable in FIPS mode.
1330 *) In dtls1_process_out_of_seq_message() the check if the current message
1331 is already buffered was missing. For every new message was memory
1332 allocated, allowing an attacker to perform an denial of service attack
1333 with sending out of seq handshake messages until there is no memory
1334 left. Additionally every future messege was buffered, even if the
1335 sequence number made no sense and would be part of another handshake.
1336 So only messages with sequence numbers less than 10 in advance will be
1337 buffered. (CVE-2009-1378)
1338 [Robin Seggelmann, discovered by Daniel Mentz]
1340 *) Records are buffered if they arrive with a future epoch to be
1341 processed after finishing the corresponding handshake. There is
1342 currently no limitation to this buffer allowing an attacker to perform
1343 a DOS attack with sending records with future epochs until there is no
1344 memory left. This patch adds the pqueue_size() function to detemine
1345 the size of a buffer and limits the record buffer to 100 entries.
1347 [Robin Seggelmann, discovered by Daniel Mentz]
1349 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1350 parent structure is freed. (CVE-2009-1379)
1353 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1354 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1357 [Ilya O. <vrghost@gmail.com>]
1359 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1361 *) Disable renegotiation completely - this fixes a severe security
1362 problem (CVE-2009-3555) at the cost of breaking all
1363 renegotiation. Renegotiation can be re-enabled by setting
1364 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1365 run-time. This is really not recommended unless you know what
1369 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1371 *) Don't set val to NULL when freeing up structures, it is freed up by
1372 underlying code. If sizeof(void *) > sizeof(long) this can result in
1373 zeroing past the valid field. (CVE-2009-0789)
1374 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1376 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1377 checked correctly. This would allow some invalid signed attributes to
1378 appear to verify correctly. (CVE-2009-0591)
1379 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1381 *) Reject UniversalString and BMPString types with invalid lengths. This
1382 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1383 a legal length. (CVE-2009-0590)
1386 *) Set S/MIME signing as the default purpose rather than setting it
1387 unconditionally. This allows applications to override it at the store
1391 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1392 to handle some structures.
1395 *) Improve efficiency of mem_gets: don't search whole buffer each time
1397 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1399 *) New -hex option for openssl rand.
1402 *) Print out UTF8String and NumericString when parsing ASN1.
1405 *) Support NumericString type for name components.
1408 *) Allow CC in the environment to override the automatically chosen
1409 compiler. Note that nothing is done to ensure flags work with the
1413 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1415 *) Properly check EVP_VerifyFinal() and similar return values
1417 [Ben Laurie, Bodo Moeller, Google Security Team]
1419 *) Enable TLS extensions by default.
1422 *) Allow the CHIL engine to be loaded, whether the application is
1423 multithreaded or not. (This does not release the developer from the
1424 obligation to set up the dynamic locking callbacks.)
1425 [Sander Temme <sander@temme.net>]
1427 *) Use correct exit code if there is an error in dgst command.
1428 [Steve Henson; problem pointed out by Roland Dirlewanger]
1430 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1431 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1434 *) Add experimental JPAKE support, including demo authentication in
1435 s_client and s_server.
1438 *) Set the comparison function in v3_addr_canonize().
1439 [Rob Austein <sra@hactrn.net>]
1441 *) Add support for XMPP STARTTLS in s_client.
1442 [Philip Paeps <philip@freebsd.org>]
1444 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1445 to ensure that even with this option, only ciphersuites in the
1446 server's preference list will be accepted. (Note that the option
1447 applies only when resuming a session, so the earlier behavior was
1448 just about the algorithm choice for symmetric cryptography.)
1451 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1453 *) Fix NULL pointer dereference if a DTLS server received
1454 ChangeCipherSpec as first record (CVE-2009-1386).
1457 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1458 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1461 *) The fix in 0.9.8c that supposedly got rid of unsafe
1462 double-checked locking was incomplete for RSA blinding,
1463 addressing just one layer of what turns out to have been
1464 doubly unsafe triple-checked locking.
1466 So now fix this for real by retiring the MONT_HELPER macro
1467 in crypto/rsa/rsa_eay.c.
1469 [Bodo Moeller; problem pointed out by Marius Schilder]
1471 *) Various precautionary measures:
1473 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1475 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1476 (NB: This would require knowledge of the secret session ticket key
1477 to exploit, in which case you'd be SOL either way.)
1479 - Change bn_nist.c so that it will properly handle input BIGNUMs
1480 outside the expected range.
1482 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1485 [Neel Mehta, Bodo Moeller]
1487 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1488 the load fails. Useful for distros.
1489 [Ben Laurie and the FreeBSD team]
1491 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1494 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1497 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1499 This work was sponsored by Logica.
1502 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1503 keystores. Support for SSL/TLS client authentication too.
1504 Not compiled unless enable-capieng specified to Configure.
1506 This work was sponsored by Logica.
1509 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1510 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1511 attribute creation routines such as certifcate requests and PKCS#12
1515 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1517 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1518 handshake which could lead to a cilent crash as found using the
1519 Codenomicon TLS test suite (CVE-2008-1672)
1520 [Steve Henson, Mark Cox]
1522 *) Fix double free in TLS server name extensions which could lead to
1523 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1526 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1528 Clear the error queue to ensure that error entries left from
1529 older function calls do not interfere with the correct operation.
1530 [Lutz Jaenicke, Erik de Castro Lopo]
1532 *) Remove root CA certificates of commercial CAs:
1534 The OpenSSL project does not recommend any specific CA and does not
1535 have any policy with respect to including or excluding any CA.
1536 Therefore it does not make any sense to ship an arbitrary selection
1537 of root CA certificates with the OpenSSL software.
1540 *) RSA OAEP patches to fix two separate invalid memory reads.
1541 The first one involves inputs when 'lzero' is greater than
1542 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1543 before the beginning of from). The second one involves inputs where
1544 the 'db' section contains nothing but zeroes (there is a one-byte
1545 invalid read after the end of 'db').
1546 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1548 *) Partial backport from 0.9.9-dev:
1550 Introduce bn_mul_mont (dedicated Montgomery multiplication
1551 procedure) as a candidate for BIGNUM assembler implementation.
1552 While 0.9.9-dev uses assembler for various architectures, only
1553 x86_64 is available by default here in the 0.9.8 branch, and
1554 32-bit x86 is available through a compile-time setting.
1556 To try the 32-bit x86 assembler implementation, use Configure
1557 option "enable-montasm" (which exists only for this backport).
1559 As "enable-montasm" for 32-bit x86 disclaims code stability
1560 anyway, in this constellation we activate additional code
1561 backported from 0.9.9-dev for further performance improvements,
1562 namely BN_from_montgomery_word. (To enable this otherwise,
1563 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1565 [Andy Polyakov (backport partially by Bodo Moeller)]
1567 *) Add TLS session ticket callback. This allows an application to set
1568 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1569 values. This is useful for key rollover for example where several key
1570 sets may exist with different names.
1573 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1574 This was broken until now in 0.9.8 releases, such that the only way
1575 a registered ENGINE could be used (assuming it initialises
1576 successfully on the host) was to explicitly set it as the default
1577 for the relevant algorithms. This is in contradiction with 0.9.7
1578 behaviour and the documentation. With this fix, when an ENGINE is
1579 registered into a given algorithm's table of implementations, the
1580 'uptodate' flag is reset so that auto-discovery will be used next
1581 time a new context for that algorithm attempts to select an
1583 [Ian Lister (tweaked by Geoff Thorpe)]
1585 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1586 implemention in the following ways:
1588 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1591 Lack of BER streaming support means one pass streaming processing is
1592 only supported if data is detached: setting the streaming flag is
1593 ignored for embedded content.
1595 CMS support is disabled by default and must be explicitly enabled
1596 with the enable-cms configuration option.
1599 *) Update the GMP engine glue to do direct copies between BIGNUM and
1600 mpz_t when openssl and GMP use the same limb size. Otherwise the
1601 existing "conversion via a text string export" trick is still used.
1602 [Paul Sheer <paulsheer@gmail.com>]
1604 *) Zlib compression BIO. This is a filter BIO which compressed and
1605 uncompresses any data passed through it.
1608 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1609 RFC3394 compatible AES key wrapping.
1612 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1613 sets string data without copying. X509_ALGOR_set0() and
1614 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1615 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1616 from an X509_ATTRIBUTE structure optionally checking it occurs only
1617 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1621 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1622 to get the expected BN_FLG_CONSTTIME behavior.
1623 [Bodo Moeller (Google)]
1627 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1628 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1629 - added some more tests to do_tests.pl
1630 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1631 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1632 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1633 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1634 - various changes to netware.pl to enable gcc-cross builds on Win32
1636 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1637 - various changes to fix missing prototype warnings
1638 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1639 - added AES, WHIRLPOOL and CPUID assembler code to build files
1640 - added missing AES assembler make rules to mk1mf.pl
1641 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1642 [Guenter Knauf <eflash@gmx.net>]
1644 *) Implement certificate status request TLS extension defined in RFC3546.
1645 A client can set the appropriate parameters and receive the encoded
1646 OCSP response via a callback. A server can query the supplied parameters
1647 and set the encoded OCSP response in the callback. Add simplified examples
1648 to s_client and s_server.
1651 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1653 *) Fix various bugs:
1654 + Binary incompatibility of ssl_ctx_st structure
1655 + DTLS interoperation with non-compliant servers
1656 + Don't call get_session_cb() without proposed session
1657 + Fix ia64 assembler code
1658 [Andy Polyakov, Steve Henson]
1660 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1662 *) DTLS Handshake overhaul. There were longstanding issues with
1663 OpenSSL DTLS implementation, which were making it impossible for
1664 RFC 4347 compliant client to communicate with OpenSSL server.
1665 Unfortunately just fixing these incompatibilities would "cut off"
1666 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1667 server keeps tolerating non RFC compliant syntax. The opposite is
1668 not true, 0.9.8f client can not communicate with earlier server.
1669 This update even addresses CVE-2007-4995.
1672 *) Changes to avoid need for function casts in OpenSSL: some compilers
1673 (gcc 4.2 and later) reject their use.
1674 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1677 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1678 RFC4507bis. The encrypted ticket format is an encrypted encoded
1679 SSL_SESSION structure, that way new session features are automatically
1682 If a client application caches session in an SSL_SESSION structure
1683 support is transparent because tickets are now stored in the encoded
1686 The SSL_CTX structure automatically generates keys for ticket
1687 protection in servers so again support should be possible
1688 with no application modification.
1690 If a client or server wishes to disable RFC4507 support then the option
1691 SSL_OP_NO_TICKET can be set.
1693 Add a TLS extension debugging callback to allow the contents of any client
1694 or server extensions to be examined.
1696 This work was sponsored by Google.
1699 *) Add initial support for TLS extensions, specifically for the server_name
1700 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1701 have new members for a host name. The SSL data structure has an
1702 additional member SSL_CTX *initial_ctx so that new sessions can be
1703 stored in that context to allow for session resumption, even after the
1704 SSL has been switched to a new SSL_CTX in reaction to a client's
1705 server_name extension.
1707 New functions (subject to change):
1709 SSL_get_servername()
1710 SSL_get_servername_type()
1713 New CTRL codes and macros (subject to change):
1715 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1716 - SSL_CTX_set_tlsext_servername_callback()
1717 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1718 - SSL_CTX_set_tlsext_servername_arg()
1719 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1721 openssl s_client has a new '-servername ...' option.
1723 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1724 '-key2 ...', '-servername_fatal' (subject to change). This allows
1725 testing the HostName extension for a specific single host name ('-cert'
1726 and '-key' remain fallbacks for handshakes without HostName
1727 negotiation). If the unrecogninzed_name alert has to be sent, this by
1728 default is a warning; it becomes fatal with the '-servername_fatal'
1731 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1733 *) Add AES and SSE2 assembly language support to VC++ build.
1736 *) Mitigate attack on final subtraction in Montgomery reduction.
1739 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1740 (which previously caused an internal error).
1743 *) Squeeze another 10% out of IGE mode when in != out.
1746 *) AES IGE mode speedup.
1747 [Dean Gaudet (Google)]
1749 *) Add the Korean symmetric 128-bit cipher SEED (see
1750 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1751 add SEED ciphersuites from RFC 4162:
1753 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1754 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1755 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1756 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1758 To minimize changes between patchlevels in the OpenSSL 0.9.8
1759 series, SEED remains excluded from compilation unless OpenSSL
1760 is configured with 'enable-seed'.
1761 [KISA, Bodo Moeller]
1763 *) Mitigate branch prediction attacks, which can be practical if a
1764 single processor is shared, allowing a spy process to extract
1765 information. For detailed background information, see
1766 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1767 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1768 and Necessary Software Countermeasures"). The core of the change
1769 are new versions BN_div_no_branch() and
1770 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1771 respectively, which are slower, but avoid the security-relevant
1772 conditional branches. These are automatically called by BN_div()
1773 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1774 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1775 remove a conditional branch.
1777 BN_FLG_CONSTTIME is the new name for the previous
1778 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1779 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1780 in the exponent causes BN_mod_exp_mont() to use the alternative
1781 implementation in BN_mod_exp_mont_consttime().) The old name
1782 remains as a deprecated alias.
1784 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1785 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1786 constant-time implementations for more than just exponentiation.
1787 Here too the old name is kept as a deprecated alias.
1789 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1790 the BN_BLINDING structure gets an independent copy of the
1791 modulus. This means that the previous "BIGNUM *m" argument to
1792 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1793 essentially becomes "const BIGNUM *m", although we can't actually
1794 change this in the header file before 0.9.9. It allows
1795 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1796 enable BN_FLG_CONSTTIME.
1798 [Matthew D Wood (Intel Corp)]
1800 *) In the SSL/TLS server implementation, be strict about session ID
1801 context matching (which matters if an application uses a single
1802 external cache for different purposes). Previously,
1803 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1804 set. This did ensure strict client verification, but meant that,
1805 with applications using a single external cache for quite
1806 different requirements, clients could circumvent ciphersuite
1807 restrictions for a given session ID context by starting a session
1808 in a different context.
1811 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1812 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1813 authentication-only ciphersuites.
1816 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1817 not complete and could lead to a possible single byte overflow
1818 (CVE-2007-5135) [Ben Laurie]
1820 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1822 *) Since AES128 and AES256 (and similarly Camellia128 and
1823 Camellia256) share a single mask bit in the logic of
1824 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1825 kludge to work properly if AES128 is available and AES256 isn't
1826 (or if Camellia128 is available and Camellia256 isn't).
1829 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1830 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1831 When a point or a seed is encoded in a BIT STRING, we need to
1832 prevent the removal of trailing zero bits to get the proper DER
1833 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1834 of a NamedBitList, for which trailing 0 bits need to be removed.)
1837 *) Have SSL/TLS server implementation tolerate "mismatched" record
1838 protocol version while receiving ClientHello even if the
1839 ClientHello is fragmented. (The server can't insist on the
1840 particular protocol version it has chosen before the ServerHello
1841 message has informed the client about his choice.)
1844 *) Add RFC 3779 support.
1845 [Rob Austein for ARIN, Ben Laurie]
1847 *) Load error codes if they are not already present instead of using a
1848 static variable. This allows them to be cleanly unloaded and reloaded.
1849 Improve header file function name parsing.
1852 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1853 or CAPABILITY handshake as required by RFCs.
1856 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1858 *) Introduce limits to prevent malicious keys being able to
1859 cause a denial of service. (CVE-2006-2940)
1860 [Steve Henson, Bodo Moeller]
1862 *) Fix ASN.1 parsing of certain invalid structures that can result
1863 in a denial of service. (CVE-2006-2937) [Steve Henson]
1865 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1866 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1868 *) Fix SSL client code which could crash if connecting to a
1869 malicious SSLv2 server. (CVE-2006-4343)
1870 [Tavis Ormandy and Will Drewry, Google Security Team]
1872 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1873 match only those. Before that, "AES256-SHA" would be interpreted
1874 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1875 the same strength classification in 0.9.7h) as we currently only
1876 have a single AES bit in the ciphersuite description bitmap.
1877 That change, however, also applied to ciphersuite strings such as
1878 "RC4-MD5" that intentionally matched multiple ciphersuites --
1879 namely, SSL 2.0 ciphersuites in addition to the more common ones
1880 from SSL 3.0/TLS 1.0.
1882 So we change the selection algorithm again: Naming an explicit
1883 ciphersuite selects this one ciphersuite, and any other similar
1884 ciphersuite (same bitmap) from *other* protocol versions.
1885 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1886 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1888 Since SSL 2.0 does not have any ciphersuites for which the
1889 128/256 bit distinction would be relevant, this works for now.
1890 The proper fix will be to use different bits for AES128 and
1891 AES256, which would have avoided the problems from the beginning;
1892 however, bits are scarce, so we can only do this in a new release
1893 (not just a patchlevel) when we can change the SSL_CIPHER
1894 definition to split the single 'unsigned long mask' bitmap into
1895 multiple values to extend the available space.
1899 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1901 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1902 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1904 *) Add AES IGE and biIGE modes.
1907 *) Change the Unix randomness entropy gathering to use poll() when
1908 possible instead of select(), since the latter has some
1909 undesirable limitations.
1910 [Darryl Miles via Richard Levitte and Bodo Moeller]
1912 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1913 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1914 cannot be implicitly activated as part of, e.g., the "AES" alias.
1915 However, please upgrade to OpenSSL 0.9.9[-dev] for
1916 non-experimental use of the ECC ciphersuites to get TLS extension
1917 support, which is required for curve and point format negotiation
1918 to avoid potential handshake problems.
1921 *) Disable rogue ciphersuites:
1923 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1924 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1925 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1927 The latter two were purportedly from
1928 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1931 Also deactivate the remaining ciphersuites from
1932 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1933 unofficial, and the ID has long expired.
1936 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1937 dual-core machines) and other potential thread-safety issues.
1940 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1941 versions), which is now available for royalty-free use
1942 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1943 Also, add Camellia TLS ciphersuites from RFC 4132.
1945 To minimize changes between patchlevels in the OpenSSL 0.9.8
1946 series, Camellia remains excluded from compilation unless OpenSSL
1947 is configured with 'enable-camellia'.
1950 *) Disable the padding bug check when compression is in use. The padding
1951 bug check assumes the first packet is of even length, this is not
1952 necessarily true if compresssion is enabled and can result in false
1953 positives causing handshake failure. The actual bug test is ancient
1954 code so it is hoped that implementations will either have fixed it by
1955 now or any which still have the bug do not support compression.
1958 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1960 *) When applying a cipher rule check to see if string match is an explicit
1961 cipher suite and only match that one cipher suite if it is.
1964 *) Link in manifests for VC++ if needed.
1965 [Austin Ziegler <halostatue@gmail.com>]
1967 *) Update support for ECC-based TLS ciphersuites according to
1968 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1969 TLS extensions, which are supported starting with the 0.9.9
1970 branch, not in the OpenSSL 0.9.8 branch).
1973 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1974 opaque EVP_CIPHER_CTX handling.
1977 *) Fixes and enhancements to zlib compression code. We now only use
1978 "zlib1.dll" and use the default __cdecl calling convention on Win32
1979 to conform with the standards mentioned here:
1980 http://www.zlib.net/DLL_FAQ.txt
1981 Static zlib linking now works on Windows and the new --with-zlib-include
1982 --with-zlib-lib options to Configure can be used to supply the location
1983 of the headers and library. Gracefully handle case where zlib library
1987 *) Several fixes and enhancements to the OID generation code. The old code
1988 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1989 handle numbers larger than ULONG_MAX, truncated printing and had a
1990 non standard OBJ_obj2txt() behaviour.
1993 *) Add support for building of engines under engine/ as shared libraries
1994 under VC++ build system.
1997 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1998 Hopefully, we will not see any false combination of paths any more.
2001 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2003 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2004 (part of SSL_OP_ALL). This option used to disable the
2005 countermeasure against man-in-the-middle protocol-version
2006 rollback in the SSL 2.0 server implementation, which is a bad
2007 idea. (CVE-2005-2969)
2009 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2010 for Information Security, National Institute of Advanced Industrial
2011 Science and Technology [AIST], Japan)]
2013 *) Add two function to clear and return the verify parameter flags.
2016 *) Keep cipherlists sorted in the source instead of sorting them at
2017 runtime, thus removing the need for a lock.
2020 *) Avoid some small subgroup attacks in Diffie-Hellman.
2021 [Nick Mathewson and Ben Laurie]
2023 *) Add functions for well-known primes.
2026 *) Extended Windows CE support.
2027 [Satoshi Nakamura and Andy Polyakov]
2029 *) Initialize SSL_METHOD structures at compile time instead of during
2030 runtime, thus removing the need for a lock.
2033 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2034 attempting to decrypt each encrypted key in turn. Add support to
2038 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2040 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2043 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2046 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2047 key into the same file any more.
2050 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2053 *) Add -utf8 command line and config file option to 'ca'.
2054 [Stefan <stf@udoma.org]
2056 *) Removed the macro des_crypt(), as it seems to conflict with some
2057 libraries. Use DES_crypt().
2060 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2061 involves renaming the source and generated shared-libs for
2062 both. The engines will accept the corrected or legacy ids
2063 ('ncipher' and '4758_cca' respectively) when binding. NB,
2064 this only applies when building 'shared'.
2065 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2067 *) Add attribute functions to EVP_PKEY structure. Modify
2068 PKCS12_create() to recognize a CSP name attribute and
2069 use it. Make -CSP option work again in pkcs12 utility.
2072 *) Add new functionality to the bn blinding code:
2073 - automatic re-creation of the BN_BLINDING parameters after
2074 a fixed number of uses (currently 32)
2075 - add new function for parameter creation
2076 - introduce flags to control the update behaviour of the
2077 BN_BLINDING parameters
2078 - hide BN_BLINDING structure
2079 Add a second BN_BLINDING slot to the RSA structure to improve
2080 performance when a single RSA object is shared among several
2084 *) Add support for DTLS.
2085 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2087 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2088 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2091 *) Remove buggy and incompletet DH cert support from
2092 ssl/ssl_rsa.c and ssl/s3_both.c
2095 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2096 the apps/openssl applications.
2099 *) Compile clean with "-Wall -Wmissing-prototypes
2100 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2101 DEBUG_SAFESTACK must also be set.
2104 *) Change ./Configure so that certain algorithms can be disabled by default.
2105 The new counterpiece to "no-xxx" is "enable-xxx".
2107 The patented RC5 and MDC2 algorithms will now be disabled unless
2108 "enable-rc5" and "enable-mdc2", respectively, are specified.
2110 (IDEA remains enabled despite being patented. This is because IDEA
2111 is frequently required for interoperability, and there is no license
2112 fee for non-commercial use. As before, "no-idea" can be used to
2113 avoid this algorithm.)
2117 *) Add processing of proxy certificates (see RFC 3820). This work was
2118 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2119 EGEE (Enabling Grids for E-science in Europe).
2122 *) RC4 performance overhaul on modern architectures/implementations, such
2123 as Intel P4, IA-64 and AMD64.
2126 *) New utility extract-section.pl. This can be used specify an alternative
2127 section number in a pod file instead of having to treat each file as
2128 a separate case in Makefile. This can be done by adding two lines to the
2131 =for comment openssl_section:XXX
2133 The blank line is mandatory.
2137 *) New arguments -certform, -keyform and -pass for s_client and s_server
2138 to allow alternative format key and certificate files and passphrase
2142 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2143 update associated structures and add various utility functions.
2145 Add new policy related verify parameters, include policy checking in
2146 standard verify code. Enhance 'smime' application with extra parameters
2147 to support policy checking and print out.
2150 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2151 Nehemiah processors. These extensions support AES encryption in hardware
2152 as well as RNG (though RNG support is currently disabled).
2153 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2155 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2158 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2159 [Andy Polyakov and a number of other people]
2161 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2162 implementation contributed by IBM.
2163 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2165 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2166 exponent rather than 'unsigned long'. There is a corresponding change to
2167 the new 'rsa_keygen' element of the RSA_METHOD structure.
2168 [Jelte Jansen, Geoff Thorpe]
2170 *) Functionality for creating the initial serial number file is now
2171 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2173 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2174 number file to 1, which is bound to cause problems. To avoid
2175 the problems while respecting compatibility between different 0.9.7
2176 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2177 CA.pl for serial number initialization. With the new release 0.9.8,
2178 we can fix the problem directly in the 'ca' utility.)
2181 *) Reduced header interdepencies by declaring more opaque objects in
2182 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2183 give fewer recursive includes, which could break lazy source code - so
2184 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2185 developers should define this symbol when building and using openssl to
2186 ensure they track the recommended behaviour, interfaces, [etc], but
2187 backwards-compatible behaviour prevails when this isn't defined.
2190 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2193 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2194 This will generate a random key of the appropriate length based on the
2195 cipher context. The EVP_CIPHER can provide its own random key generation
2196 routine to support keys of a specific form. This is used in the des and
2197 3des routines to generate a key of the correct parity. Update S/MIME
2198 code to use new functions and hence generate correct parity DES keys.
2199 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2200 valid (weak or incorrect parity).
2203 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2204 as looking them up. This is useful when the verified structure may contain
2205 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2206 present unless the new PKCS7_NO_CRL flag is asserted.
2209 *) Extend ASN1 oid configuration module. It now additionally accepts the
2212 shortName = some long name, 1.2.3.4
2215 *) Reimplemented the BN_CTX implementation. There is now no more static
2216 limitation on the number of variables it can handle nor the depth of the
2217 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2218 information can now expand as required, and rather than having a single
2219 static array of bignums, BN_CTX now uses a linked-list of such arrays
2220 allowing it to expand on demand whilst maintaining the usefulness of
2221 BN_CTX's "bundling".
2224 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2225 to allow all RSA operations to function using a single BN_CTX.
2228 *) Preliminary support for certificate policy evaluation and checking. This
2229 is initially intended to pass the tests outlined in "Conformance Testing
2230 of Relying Party Client Certificate Path Processing Logic" v1.07.
2233 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2234 remained unused and not that useful. A variety of other little bignum
2235 tweaks and fixes have also been made continuing on from the audit (see
2239 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2240 associated ASN1, EVP and SSL functions and old ASN1 macros.
2243 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2244 and this should never fail. So the return value from the use of
2245 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2246 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2249 *) BN_CTX_get() should return zero-valued bignums, providing the same
2250 initialised value as BN_new().
2251 [Geoff Thorpe, suggested by Ulf Möller]
2253 *) Support for inhibitAnyPolicy certificate extension.
2256 *) An audit of the BIGNUM code is underway, for which debugging code is
2257 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2258 is considered valid when processing BIGNUMs, and causes execution to
2259 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2260 further steps are taken to deliberately pollute unused data in BIGNUM
2261 structures to try and expose faulty code further on. For now, openssl will
2262 (in its default mode of operation) continue to tolerate the inconsistent
2263 forms that it has tolerated in the past, but authors and packagers should
2264 consider trying openssl and their own applications when compiled with
2265 these debugging symbols defined. It will help highlight potential bugs in
2266 their own code, and will improve the test coverage for OpenSSL itself. At
2267 some point, these tighter rules will become openssl's default to improve
2268 maintainability, though the assert()s and other overheads will remain only
2269 in debugging configurations. See bn.h for more details.
2270 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2272 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2273 that can only be obtained through BN_CTX_new() (which implicitly
2274 initialises it). The presence of this function only made it possible
2275 to overwrite an existing structure (and cause memory leaks).
2278 *) Because of the callback-based approach for implementing LHASH as a
2279 template type, lh_insert() adds opaque objects to hash-tables and
2280 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2281 to clean up those corresponding objects before destroying the hash table
2282 (and losing the object pointers). So some over-zealous constifications in
2283 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2284 objects as "const" and the lh_doall[_arg] callback wrappers are not
2285 prototyped to have "const" restrictions on the object pointers they are
2286 given (and so aren't required to cast them away any more).
2289 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2290 (speed) prefers to use its own implementation. The two implementations
2291 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2292 its object type properly exposed (MS_TM) instead of casting to/from "char
2293 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2294 aren't necessarily the greatest nomenclatures - but this is what was used
2295 internally to the implementation so I've used that for now.
2298 *) Ensure that deprecated functions do not get compiled when
2299 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2300 the self-tests were still using deprecated key-generation functions so
2301 these have been updated also.
2304 *) Reorganise PKCS#7 code to separate the digest location functionality
2305 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2306 New function PKCS7_set_digest() to set the digest type for PKCS#7
2307 digestedData type. Add additional code to correctly generate the
2308 digestedData type and add support for this type in PKCS7 initialization
2312 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2313 structure of type "other".
2316 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2317 sure the loop does correctly stop and breaking ("division by zero")
2318 modulus operations are not performed. The (pre-generated) prime
2319 table crypto/bn/bn_prime.h was already correct, but it could not be
2320 re-generated on some platforms because of the "division by zero"
2321 situation in the script.
2322 [Ralf S. Engelschall]
2324 *) Update support for ECC-based TLS ciphersuites according to
2325 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2326 SHA-1 now is only used for "small" curves (where the
2327 representation of a field element takes up to 24 bytes); for
2328 larger curves, the field element resulting from ECDH is directly
2329 used as premaster secret.
2330 [Douglas Stebila (Sun Microsystems Laboratories)]
2332 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2333 curve secp160r1 to the tests.
2334 [Douglas Stebila (Sun Microsystems Laboratories)]
2336 *) Add the possibility to load symbols globally with DSO.
2337 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2339 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2340 control of the error stack.
2343 *) Add support for STORE in ENGINE.
2346 *) Add the STORE type. The intention is to provide a common interface
2347 to certificate and key stores, be they simple file-based stores, or
2348 HSM-type store, or LDAP stores, or...
2349 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2352 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2353 pass a list of arguments to any function as well as provide a way
2354 for a function to pass data back to the caller.
2357 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2358 works like BUF_strdup() but can be used to duplicate a portion of
2359 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2363 *) Add the function sk_find_ex() which works like sk_find(), but will
2364 return an index to an element even if an exact match couldn't be
2365 found. The index is guaranteed to point at the element where the
2366 searched-for key would be inserted to preserve sorting order.
2369 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2370 takes an extra flags argument for optional functionality. Currently,
2371 the following flags are defined:
2373 OBJ_BSEARCH_VALUE_ON_NOMATCH
2374 This one gets OBJ_bsearch_ex() to return a pointer to the first
2375 element where the comparing function returns a negative or zero
2378 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2379 This one gets OBJ_bsearch_ex() to return a pointer to the first
2380 element where the comparing function returns zero. This is useful
2381 if there are more than one element where the comparing function
2385 *) Make it possible to create self-signed certificates with 'openssl ca'
2386 in such a way that the self-signed certificate becomes part of the
2387 CA database and uses the same mechanisms for serial number generation
2388 as all other certificate signing. The new flag '-selfsign' enables
2389 this functionality. Adapt CA.sh and CA.pl.in.
2392 *) Add functionality to check the public key of a certificate request
2393 against a given private. This is useful to check that a certificate
2394 request can be signed by that key (self-signing).
2397 *) Make it possible to have multiple active certificates with the same
2398 subject in the CA index file. This is done only if the keyword
2399 'unique_subject' is set to 'no' in the main CA section (default
2400 if 'CA_default') of the configuration file. The value is saved
2401 with the database itself in a separate index attribute file,
2402 named like the index file with '.attr' appended to the name.
2405 *) Generate muti valued AVAs using '+' notation in config files for
2409 *) Support for nameConstraints certificate extension.
2412 *) Support for policyConstraints certificate extension.
2415 *) Support for policyMappings certificate extension.
2418 *) Make sure the default DSA_METHOD implementation only uses its
2419 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2420 and change its own handlers to be NULL so as to remove unnecessary
2421 indirection. This lets alternative implementations fallback to the
2422 default implementation more easily.
2425 *) Support for directoryName in GeneralName related extensions
2429 *) Make it possible to link applications using Makefile.shared.
2430 Make that possible even when linking against static libraries!
2433 *) Support for single pass processing for S/MIME signing. This now
2434 means that S/MIME signing can be done from a pipe, in addition
2435 cleartext signing (multipart/signed type) is effectively streaming
2436 and the signed data does not need to be all held in memory.
2438 This is done with a new flag PKCS7_STREAM. When this flag is set
2439 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2440 is done after the data is output (and digests calculated) in
2441 SMIME_write_PKCS7().
2444 *) Add full support for -rpath/-R, both in shared libraries and
2445 applications, at least on the platforms where it's known how
2449 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2450 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2451 will now compute a table of multiples of the generator that
2452 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2453 faster (notably in the case of a single point multiplication,
2454 scalar * generator).
2455 [Nils Larsch, Bodo Moeller]
2457 *) IPv6 support for certificate extensions. The various extensions
2458 which use the IP:a.b.c.d can now take IPv6 addresses using the
2459 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2463 *) Added an ENGINE that implements RSA by performing private key
2464 exponentiations with the GMP library. The conversions to and from
2465 GMP's mpz_t format aren't optimised nor are any montgomery forms
2466 cached, and on x86 it appears OpenSSL's own performance has caught up.
2467 However there are likely to be other architectures where GMP could
2468 provide a boost. This ENGINE is not built in by default, but it can be
2469 specified at Configure time and should be accompanied by the necessary
2470 linker additions, eg;
2471 ./config -DOPENSSL_USE_GMP -lgmp
2474 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2475 testing availability of engines with "-t" - the old behaviour is
2476 produced by increasing the feature's verbosity with "-tt".
2479 *) ECDSA routines: under certain error conditions uninitialized BN objects
2480 could be freed. Solution: make sure initialization is performed early
2481 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2485 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2486 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2487 software implementations. For DSA and DH, parameter generation can
2488 also be overriden by providing the appropriate method callbacks.
2491 *) Change the "progress" mechanism used in key-generation and
2492 primality testing to functions that take a new BN_GENCB pointer in
2493 place of callback/argument pairs. The new API functions have "_ex"
2494 postfixes and the older functions are reimplemented as wrappers for
2495 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2496 declarations of the old functions to help (graceful) attempts to
2497 migrate to the new functions. Also, the new key-generation API
2498 functions operate on a caller-supplied key-structure and return
2499 success/failure rather than returning a key or NULL - this is to
2500 help make "keygen" another member function of RSA_METHOD etc.
2502 Example for using the new callback interface:
2504 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2508 BN_GENCB_set(&my_cb, my_callback, my_arg);
2510 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2511 /* For the meaning of a, b in calls to my_callback(), see the
2512 * documentation of the function that calls the callback.
2513 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2514 * my_callback should return 1 if it wants BN_is_prime_ex()
2515 * to continue, or 0 to stop.
2520 *) Change the ZLIB compression method to be stateful, and make it
2521 available to TLS with the number defined in
2522 draft-ietf-tls-compression-04.txt.
2525 *) Add the ASN.1 structures and functions for CertificatePair, which
2526 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2528 CertificatePair ::= SEQUENCE {
2529 forward [0] Certificate OPTIONAL,
2530 reverse [1] Certificate OPTIONAL,
2531 -- at least one of the pair shall be present -- }
2533 Also implement the PEM functions to read and write certificate
2534 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2536 This needed to be defined, mostly for the sake of the LDAP
2537 attribute crossCertificatePair, but may prove useful elsewhere as
2541 *) Make it possible to inhibit symlinking of shared libraries in
2542 Makefile.shared, for Cygwin's sake.
2545 *) Extend the BIGNUM API by creating a function
2546 void BN_set_negative(BIGNUM *a, int neg);
2547 and a macro that behave like
2548 int BN_is_negative(const BIGNUM *a);
2550 to avoid the need to access 'a->neg' directly in applications.
2553 *) Implement fast modular reduction for pseudo-Mersenne primes
2554 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2555 EC_GROUP_new_curve_GFp() will now automatically use this
2557 [Nils Larsch <nla@trustcenter.de>]
2559 *) Add new lock type (CRYPTO_LOCK_BN).
2562 *) Change the ENGINE framework to automatically load engines
2563 dynamically from specific directories unless they could be
2564 found to already be built in or loaded. Move all the
2565 current engines except for the cryptodev one to a new
2567 The engines in engines/ are built as shared libraries if
2568 the "shared" options was given to ./Configure or ./config.
2569 Otherwise, they are inserted in libcrypto.a.
2570 /usr/local/ssl/engines is the default directory for dynamic
2571 engines, but that can be overriden at configure time through
2572 the usual use of --prefix and/or --openssldir, and at run
2573 time with the environment variable OPENSSL_ENGINES.
2574 [Geoff Thorpe and Richard Levitte]
2576 *) Add Makefile.shared, a helper makefile to build shared
2577 libraries. Addapt Makefile.org.
2580 *) Add version info to Win32 DLLs.
2581 [Peter 'Luna' Runestig" <peter@runestig.com>]
2583 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2584 can be added using this API to created arbitrary PKCS#12
2585 files while avoiding the low level API.
2587 New options to PKCS12_create(), key or cert can be NULL and
2588 will then be omitted from the output file. The encryption
2589 algorithm NIDs can be set to -1 for no encryption, the mac
2590 iteration count can be set to 0 to omit the mac.
2592 Enhance pkcs12 utility by making the -nokeys and -nocerts
2593 options work when creating a PKCS#12 file. New option -nomac
2594 to omit the mac, NONE can be set for an encryption algorithm.
2595 New code is modified to use the enhanced PKCS12_create()
2596 instead of the low level API.
2599 *) Extend ASN1 encoder to support indefinite length constructed
2600 encoding. This can output sequences tags and octet strings in
2601 this form. Modify pk7_asn1.c to support indefinite length
2602 encoding. This is experimental and needs additional code to
2603 be useful, such as an ASN1 bio and some enhanced streaming
2606 Extend template encode functionality so that tagging is passed
2607 down to the template encoder.
2610 *) Let 'openssl req' fail if an argument to '-newkey' is not
2611 recognized instead of using RSA as a default.
2614 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2615 As these are not official, they are not included in "ALL";
2616 the "ECCdraft" ciphersuite group alias can be used to select them.
2617 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2619 *) Add ECDH engine support.
2620 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2622 *) Add ECDH in new directory crypto/ecdh/.
2623 [Douglas Stebila (Sun Microsystems Laboratories)]
2625 *) Let BN_rand_range() abort with an error after 100 iterations
2626 without success (which indicates a broken PRNG).
2629 *) Change BN_mod_sqrt() so that it verifies that the input value
2630 is really the square of the return value. (Previously,
2631 BN_mod_sqrt would show GIGO behaviour.)
2634 *) Add named elliptic curves over binary fields from X9.62, SECG,
2635 and WAP/WTLS; add OIDs that were still missing.
2637 [Sheueling Chang Shantz and Douglas Stebila
2638 (Sun Microsystems Laboratories)]
2640 *) Extend the EC library for elliptic curves over binary fields
2641 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2644 EC_GF2m_simple_method
2648 EC_GROUP_new_curve_GF2m
2649 EC_GROUP_set_curve_GF2m
2650 EC_GROUP_get_curve_GF2m
2651 EC_POINT_set_affine_coordinates_GF2m
2652 EC_POINT_get_affine_coordinates_GF2m
2653 EC_POINT_set_compressed_coordinates_GF2m
2655 Point compression for binary fields is disabled by default for
2656 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2659 As binary polynomials are represented as BIGNUMs, various members
2660 of the EC_GROUP and EC_POINT data structures can be shared
2661 between the implementations for prime fields and binary fields;
2662 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2663 are essentially identical to their ..._GFp counterparts.
2664 (For simplicity, the '..._GFp' prefix has been dropped from
2665 various internal method names.)
2667 An internal 'field_div' method (similar to 'field_mul' and
2668 'field_sqr') has been added; this is used only for binary fields.
2670 [Sheueling Chang Shantz and Douglas Stebila
2671 (Sun Microsystems Laboratories)]
2673 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2674 through methods ('mul', 'precompute_mult').
2676 The generic implementations (now internally called 'ec_wNAF_mul'
2677 and 'ec_wNAF_precomputed_mult') remain the default if these
2678 methods are undefined.
2680 [Sheueling Chang Shantz and Douglas Stebila
2681 (Sun Microsystems Laboratories)]
2683 *) New function EC_GROUP_get_degree, which is defined through
2684 EC_METHOD. For curves over prime fields, this returns the bit
2685 length of the modulus.
2687 [Sheueling Chang Shantz and Douglas Stebila
2688 (Sun Microsystems Laboratories)]
2690 *) New functions EC_GROUP_dup, EC_POINT_dup.
2691 (These simply call ..._new and ..._copy).
2693 [Sheueling Chang Shantz and Douglas Stebila
2694 (Sun Microsystems Laboratories)]
2696 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2697 Polynomials are represented as BIGNUMs (where the sign bit is not
2698 used) in the following functions [macros]:
2701 BN_GF2m_sub [= BN_GF2m_add]
2702 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2703 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2704 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2706 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2707 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2708 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2709 BN_GF2m_cmp [= BN_ucmp]
2711 (Note that only the 'mod' functions are actually for fields GF(2^m).
2712 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2714 For some functions, an the irreducible polynomial defining a
2715 field can be given as an 'unsigned int[]' with strictly
2716 decreasing elements giving the indices of those bits that are set;
2717 i.e., p[] represents the polynomial
2718 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2720 p[0] > p[1] > ... > p[k] = 0.
2721 This applies to the following functions:
2726 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2727 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2729 BN_GF2m_mod_sqrt_arr
2730 BN_GF2m_mod_solve_quad_arr
2734 Conversion can be performed by the following functions:
2739 bntest.c has additional tests for binary polynomial arithmetic.
2741 Two implementations for BN_GF2m_mod_div() are available.
2742 The default algorithm simply uses BN_GF2m_mod_inv() and
2743 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2744 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2745 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2747 [Sheueling Chang Shantz and Douglas Stebila
2748 (Sun Microsystems Laboratories)]
2750 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2751 functionality is disabled at compile-time.
2752 [Douglas Stebila <douglas.stebila@sun.com>]
2754 *) Change default behaviour of 'openssl asn1parse' so that more
2755 information is visible when viewing, e.g., a certificate:
2757 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2758 mode the content of non-printable OCTET STRINGs is output in a
2759 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2760 avoid the appearance of a printable string.
2761 [Nils Larsch <nla@trustcenter.de>]
2763 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2765 EC_GROUP_set_asn1_flag()
2766 EC_GROUP_get_asn1_flag()
2767 EC_GROUP_set_point_conversion_form()
2768 EC_GROUP_get_point_conversion_form()
2769 These control ASN1 encoding details:
2770 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2771 has been set to OPENSSL_EC_NAMED_CURVE.
2772 - Points are encoded in uncompressed form by default; options for
2773 asn1_for are as for point2oct, namely
2774 POINT_CONVERSION_COMPRESSED
2775 POINT_CONVERSION_UNCOMPRESSED
2776 POINT_CONVERSION_HYBRID
2778 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2781 EC_GROUP_get0_seed()
2782 EC_GROUP_get_seed_len()
2783 This is used only for ASN1 purposes (so far).
2784 [Nils Larsch <nla@trustcenter.de>]
2786 *) Add 'field_type' member to EC_METHOD, which holds the NID
2787 of the appropriate field type OID. The new function
2788 EC_METHOD_get_field_type() returns this value.
2789 [Nils Larsch <nla@trustcenter.de>]
2794 EC_POINT_point2hex()
2795 EC_POINT_hex2point()
2796 providing useful interfaces to EC_POINT_point2oct() and
2797 EC_POINT_oct2point().
2798 [Nils Larsch <nla@trustcenter.de>]
2800 *) Change internals of the EC library so that the functions
2801 EC_GROUP_set_generator()
2802 EC_GROUP_get_generator()
2803 EC_GROUP_get_order()
2804 EC_GROUP_get_cofactor()
2805 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2806 to methods, which would lead to unnecessary code duplication when
2807 adding different types of curves.
2808 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2810 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2811 arithmetic, and such that modified wNAFs are generated
2812 (which avoid length expansion in many cases).
2815 *) Add a function EC_GROUP_check_discriminant() (defined via
2816 EC_METHOD) that verifies that the curve discriminant is non-zero.
2818 Add a function EC_GROUP_check() that makes some sanity tests
2819 on a EC_GROUP, its generator and order. This includes
2820 EC_GROUP_check_discriminant().
2821 [Nils Larsch <nla@trustcenter.de>]
2823 *) Add ECDSA in new directory crypto/ecdsa/.
2825 Add applications 'openssl ecparam' and 'openssl ecdsa'
2826 (these are based on 'openssl dsaparam' and 'openssl dsa').
2828 ECDSA support is also included in various other files across the
2829 library. Most notably,
2830 - 'openssl req' now has a '-newkey ecdsa:file' option;
2831 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2832 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2833 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2834 them suitable for ECDSA where domain parameters must be
2835 extracted before the specific public key;
2836 - ECDSA engine support has been added.
2837 [Nils Larsch <nla@trustcenter.de>]
2839 *) Include some named elliptic curves, and add OIDs from X9.62,
2840 SECG, and WAP/WTLS. Each curve can be obtained from the new
2842 EC_GROUP_new_by_curve_name(),
2843 and the list of available named curves can be obtained with
2844 EC_get_builtin_curves().
2845 Also add a 'curve_name' member to EC_GROUP objects, which can be
2847 EC_GROUP_set_curve_name()
2848 EC_GROUP_get_curve_name()
2849 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2851 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2852 was actually never needed) and in BN_mul(). The removal in BN_mul()
2853 required a small change in bn_mul_part_recursive() and the addition
2854 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2855 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2856 bn_sub_words() and bn_add_words() except they take arrays with
2860 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2862 *) Cleanse PEM buffers before freeing them since they may contain
2864 [Benjamin Bennett <ben@psc.edu>]
2866 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2867 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2868 authentication-only ciphersuites.
2871 *) Since AES128 and AES256 share a single mask bit in the logic of
2872 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2873 kludge to work properly if AES128 is available and AES256 isn't.
2876 *) Expand security boundary to match 1.1.1 module.
2879 *) Remove redundant features: hash file source, editing of test vectors
2880 modify fipsld to use external fips_premain.c signature.
2883 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2884 run algorithm test programs.
2887 *) Make algorithm test programs more tolerant of whitespace.
2890 *) Have SSL/TLS server implementation tolerate "mismatched" record
2891 protocol version while receiving ClientHello even if the
2892 ClientHello is fragmented. (The server can't insist on the
2893 particular protocol version it has chosen before the ServerHello
2894 message has informed the client about his choice.)
2897 *) Load error codes if they are not already present instead of using a
2898 static variable. This allows them to be cleanly unloaded and reloaded.
2901 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2903 *) Introduce limits to prevent malicious keys being able to
2904 cause a denial of service. (CVE-2006-2940)
2905 [Steve Henson, Bodo Moeller]
2907 *) Fix ASN.1 parsing of certain invalid structures that can result
2908 in a denial of service. (CVE-2006-2937) [Steve Henson]
2910 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2911 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2913 *) Fix SSL client code which could crash if connecting to a
2914 malicious SSLv2 server. (CVE-2006-4343)
2915 [Tavis Ormandy and Will Drewry, Google Security Team]
2917 *) Change ciphersuite string processing so that an explicit
2918 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2919 will no longer include "AES128-SHA"), and any other similar
2920 ciphersuite (same bitmap) from *other* protocol versions (so that
2921 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2922 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2923 changes from 0.9.8b and 0.9.8d.
2926 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2928 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2929 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2931 *) Change the Unix randomness entropy gathering to use poll() when
2932 possible instead of select(), since the latter has some
2933 undesirable limitations.
2934 [Darryl Miles via Richard Levitte and Bodo Moeller]
2936 *) Disable rogue ciphersuites:
2938 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2939 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2940 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2942 The latter two were purportedly from
2943 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2946 Also deactive the remaining ciphersuites from
2947 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2948 unofficial, and the ID has long expired.
2951 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2952 dual-core machines) and other potential thread-safety issues.
2955 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2957 *) Adapt fipsld and the build system to link against the validated FIPS
2958 module in FIPS mode.
2961 *) Fixes for VC++ 2005 build under Windows.
2964 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2965 from a Windows bash shell such as MSYS. It is autodetected from the
2966 "config" script when run from a VC++ environment. Modify standard VC++
2967 build to use fipscanister.o from the GNU make build.
2970 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2972 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2973 The value now differs depending on if you build for FIPS or not.
2974 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2975 safely run with a non-FIPSed libcrypto, as it may crash because of
2976 the difference induced by this change.
2979 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2981 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2982 (part of SSL_OP_ALL). This option used to disable the
2983 countermeasure against man-in-the-middle protocol-version
2984 rollback in the SSL 2.0 server implementation, which is a bad
2985 idea. (CVE-2005-2969)
2987 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2988 for Information Security, National Institute of Advanced Industrial
2989 Science and Technology [AIST], Japan)]
2991 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2992 mainly for FIPS compliance and not fully integrated at this stage.
2995 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2996 the exponentiation using a fixed-length exponent. (Otherwise,
2997 the information leaked through timing could expose the secret key
2998 after many signatures; cf. Bleichenbacher's attack on DSA with
3002 *) Make a new fixed-window mod_exp implementation the default for
3003 RSA, DSA, and DH private-key operations so that the sequence of
3004 squares and multiplies and the memory access pattern are
3005 independent of the particular secret key. This will mitigate
3006 cache-timing and potential related attacks.
3008 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3009 and this is automatically used by BN_mod_exp_mont() if the new flag
3010 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3011 will use this BN flag for private exponents unless the flag
3012 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3013 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3015 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3017 *) Change the client implementation for SSLv23_method() and
3018 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3019 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3020 (Previously, the SSL 2.0 backwards compatible Client Hello
3021 message format would be used even with SSL_OP_NO_SSLv2.)
3024 *) Add support for smime-type MIME parameter in S/MIME messages which some
3028 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3029 a threadsafe manner. Modify rsa code to use new function and add calls
3030 to dsa and dh code (which had race conditions before).
3033 *) Include the fixed error library code in the C error file definitions
3034 instead of fixing them up at runtime. This keeps the error code
3035 structures constant.
3038 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3040 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3043 *) Fixes for newer kerberos headers. NB: the casts are needed because
3044 the 'length' field is signed on one version and unsigned on another
3045 with no (?) obvious way to tell the difference, without these VC++
3046 complains. Also the "definition" of FAR (blank) is no longer included
3047 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3048 some needed definitions.
3051 *) Undo Cygwin change.
3054 *) Added support for proxy certificates according to RFC 3820.
3055 Because they may be a security thread to unaware applications,
3056 they must be explicitely allowed in run-time. See
3057 docs/HOWTO/proxy_certificates.txt for further information.
3060 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3062 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3063 server and client random values. Previously
3064 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3065 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3067 This change has negligible security impact because:
3069 1. Server and client random values still have 24 bytes of pseudo random
3072 2. Server and client random values are sent in the clear in the initial
3075 3. The master secret is derived using the premaster secret (48 bytes in
3076 size for static RSA ciphersuites) as well as client server and random
3079 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3082 [Stephen Henson, reported by UK NISCC]
3084 *) Use Windows randomness collection on Cygwin.
3087 *) Fix hang in EGD/PRNGD query when communication socket is closed
3088 prematurely by EGD/PRNGD.
3089 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3091 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3094 *) Back-port of selected performance improvements from development
3095 branch, as well as improved support for PowerPC platforms.
3098 *) Add lots of checks for memory allocation failure, error codes to indicate
3099 failure and freeing up memory if a failure occurs.
3100 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3102 *) Add new -passin argument to dgst.
3105 *) Perform some character comparisons of different types in X509_NAME_cmp:
3106 this is needed for some certificates that reencode DNs into UTF8Strings
3107 (in violation of RFC3280) and can't or wont issue name rollover
3111 *) Make an explicit check during certificate validation to see that
3112 the CA setting in each certificate on the chain is correct. As a
3113 side effect always do the following basic checks on extensions,
3114 not just when there's an associated purpose to the check:
3116 - if there is an unhandled critical extension (unless the user
3117 has chosen to ignore this fault)
3118 - if the path length has been exceeded (if one is set at all)
3119 - that certain extensions fit the associated purpose (if one has
3123 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3125 *) Avoid a race condition when CRLs are checked in a multi threaded
3126 environment. This would happen due to the reordering of the revoked
3127 entries during signature checking and serial number lookup. Now the
3128 encoding is cached and the serial number sort performed under a lock.
3129 Add new STACK function sk_is_sorted().
3132 *) Add Delta CRL to the extension code.
3135 *) Various fixes to s3_pkt.c so alerts are sent properly.
3136 [David Holmes <d.holmes@f5.com>]
3138 *) Reduce the chances of duplicate issuer name and serial numbers (in
3139 violation of RFC3280) using the OpenSSL certificate creation utilities.
3140 This is done by creating a random 64 bit value for the initial serial
3141 number when a serial number file is created or when a self signed
3142 certificate is created using 'openssl req -x509'. The initial serial
3143 number file is created using 'openssl x509 -next_serial' in CA.pl
3144 rather than being initialized to 1.
3147 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3149 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3150 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3151 [Joe Orton, Steve Henson]
3153 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3155 [Joe Orton, Steve Henson]
3157 *) Make it possible to have multiple active certificates with the same
3158 subject in the CA index file. This is done only if the keyword
3159 'unique_subject' is set to 'no' in the main CA section (default
3160 if 'CA_default') of the configuration file. The value is saved
3161 with the database itself in a separate index attribute file,
3162 named like the index file with '.attr' appended to the name.
3165 *) X509 verify fixes. Disable broken certificate workarounds when
3166 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3167 keyUsage extension present. Don't accept CRLs with unhandled critical
3168 extensions: since verify currently doesn't process CRL extensions this
3169 rejects a CRL with *any* critical extensions. Add new verify error codes
3173 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3174 A clarification of RFC2560 will require the use of OCTET STRINGs and
3175 some implementations cannot handle the current raw format. Since OpenSSL
3176 copies and compares OCSP nonces as opaque blobs without any attempt at
3177 parsing them this should not create any compatibility issues.
3180 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3181 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3182 this HMAC (and other) operations are several times slower than OpenSSL
3186 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3187 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3189 *) Use the correct content when signing type "other".
3192 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3194 *) Fix various bugs revealed by running the NISCC test suite:
3196 Stop out of bounds reads in the ASN1 code when presented with
3197 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3199 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3201 If verify callback ignores invalid public key errors don't try to check
3202 certificate signature with the NULL public key.
3206 *) New -ignore_err option in ocsp application to stop the server
3207 exiting on the first error in a request.
3210 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3211 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3215 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3216 extra data after the compression methods not only for TLS 1.0
3217 but also for SSL 3.0 (as required by the specification).
3218 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3220 *) Change X509_certificate_type() to mark the key as exported/exportable
3221 when it's 512 *bits* long, not 512 bytes.
3224 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3225 blocks during encryption.
3228 *) Various fixes to base64 BIO and non blocking I/O. On write
3229 flushes were not handled properly if the BIO retried. On read
3230 data was not being buffered properly and had various logic bugs.
3231 This also affects blocking I/O when the data being decoded is a
3235 *) Various S/MIME bugfixes and compatibility changes:
3236 output correct application/pkcs7 MIME type if
3237 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3238 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3239 of files as .eml work). Correctly handle very long lines in MIME
3243 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3245 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3246 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3247 a protocol version number mismatch like a decryption error
3248 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3251 *) Turn on RSA blinding by default in the default implementation
3252 to avoid a timing attack. Applications that don't want it can call
3253 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3254 They would be ill-advised to do so in most cases.
3255 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3257 *) Change RSA blinding code so that it works when the PRNG is not
3258 seeded (in this case, the secret RSA exponent is abused as
3259 an unpredictable seed -- if it is not unpredictable, there
3260 is no point in blinding anyway). Make RSA blinding thread-safe
3261 by remembering the creator's thread ID in rsa->blinding and
3262 having all other threads use local one-time blinding factors
3263 (this requires more computation than sharing rsa->blinding, but
3264 avoids excessive locking; and if an RSA object is not shared
3265 between threads, blinding will still be very fast).
3268 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3269 ENGINE as defaults for all supported algorithms irrespective of
3270 the 'flags' parameter. 'flags' is now honoured, so applications
3271 should make sure they are passing it correctly.
3274 *) Target "mingw" now allows native Windows code to be generated in
3275 the Cygwin environment as well as with the MinGW compiler.
3278 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3280 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3281 via timing by performing a MAC computation even if incorrrect
3282 block cipher padding has been found. This is a countermeasure
3283 against active attacks where the attacker has to distinguish
3284 between bad padding and a MAC verification error. (CVE-2003-0078)
3286 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3287 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3288 Martin Vuagnoux (EPFL, Ilion)]
3290 *) Make the no-err option work as intended. The intention with no-err
3291 is not to have the whole error stack handling routines removed from
3292 libcrypto, it's only intended to remove all the function name and
3293 reason texts, thereby removing some of the footprint that may not
3294 be interesting if those errors aren't displayed anyway.
3296 NOTE: it's still possible for any application or module to have it's
3297 own set of error texts inserted. The routines are there, just not
3298 used by default when no-err is given.
3301 *) Add support for FreeBSD on IA64.
3302 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3304 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3305 Kerberos function mit_des_cbc_cksum(). Before this change,
3306 the value returned by DES_cbc_cksum() was like the one from
3307 mit_des_cbc_cksum(), except the bytes were swapped.
3308 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3310 *) Allow an application to disable the automatic SSL chain building.
3311 Before this a rather primitive chain build was always performed in
3312 ssl3_output_cert_chain(): an application had no way to send the
3313 correct chain if the automatic operation produced an incorrect result.
3315 Now the chain builder is disabled if either:
3317 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3319 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3321 The reasoning behind this is that an application would not want the
3322 auto chain building to take place if extra chain certificates are
3323 present and it might also want a means of sending no additional
3324 certificates (for example the chain has two certificates and the
3328 *) Add the possibility to build without the ENGINE framework.
3329 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3331 *) Under Win32 gmtime() can return NULL: check return value in
3332 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3335 *) DSA routines: under certain error conditions uninitialized BN objects
3336 could be freed. Solution: make sure initialization is performed early
3337 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3338 Nils Larsch <nla@trustcenter.de> via PR#459)
3341 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3342 checked on reconnect on the client side, therefore session resumption
3343 could still fail with a "ssl session id is different" error. This
3344 behaviour is masked when SSL_OP_ALL is used due to
3345 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3346 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3347 followup to PR #377.
3350 *) IA-32 assembler support enhancements: unified ELF targets, support
3351 for SCO/Caldera platforms, fix for Cygwin shared build.
3354 *) Add support for FreeBSD on sparc64. As a consequence, support for
3355 FreeBSD on non-x86 processors is separate from x86 processors on
3356 the config script, much like the NetBSD support.
3357 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3359 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3361 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3364 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3365 code (06) was taken as the first octet of the session ID and the last
3366 octet was ignored consequently. As a result SSLv2 client side session
3367 caching could not have worked due to the session ID mismatch between
3369 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3373 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3374 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3378 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3379 seems that in spite of existing for more than a year, many application
3380 author have done nothing to provide the necessary callbacks, which
3381 means that this particular engine will not work properly anywhere.
3382 This is a very unfortunate situation which forces us, in the name
3383 of usability, to give the hw_ncipher.c a static lock, which is part
3385 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3386 appear in 0.9.8 or later. We EXPECT application authors to have
3387 dealt properly with this when 0.9.8 is released (unless we actually
3388 make such changes in the libcrypto locking code that changes will
3389 have to be made anyway).
3392 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3393 octets have been read, EOF or an error occurs. Without this change
3394 some truncated ASN1 structures will not produce an error.
3397 *) Disable Heimdal support, since it hasn't been fully implemented.
3398 Still give the possibility to force the use of Heimdal, but with
3399 warnings and a request that patches get sent to openssl-dev.
3402 *) Add the VC-CE target, introduce the WINCE sysname, and add
3403 INSTALL.WCE and appropriate conditionals to make it build.
3404 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3406 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3407 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3408 edit numbers of the version.
3409 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3411 *) Introduce safe string copy and catenation functions
3412 (BUF_strlcpy() and BUF_strlcat()).
3413 [Ben Laurie (CHATS) and Richard Levitte]
3415 *) Avoid using fixed-size buffers for one-line DNs.
3416 [Ben Laurie (CHATS)]
3418 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3419 resizing buffers containing secrets, and use where appropriate.
3420 [Ben Laurie (CHATS)]
3422 *) Avoid using fixed size buffers for configuration file location.
3423 [Ben Laurie (CHATS)]
3425 *) Avoid filename truncation for various CA files.
3426 [Ben Laurie (CHATS)]
3428 *) Use sizeof in preference to magic numbers.
3429 [Ben Laurie (CHATS)]
3431 *) Avoid filename truncation in cert requests.
3432 [Ben Laurie (CHATS)]
3434 *) Add assertions to check for (supposedly impossible) buffer
3436 [Ben Laurie (CHATS)]
3438 *) Don't cache truncated DNS entries in the local cache (this could
3439 potentially lead to a spoofing attack).
3440 [Ben Laurie (CHATS)]
3442 *) Fix various buffers to be large enough for hex/decimal
3443 representations in a platform independent manner.
3444 [Ben Laurie (CHATS)]
3446 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3447 resizing buffers containing secrets, and use where appropriate.
3448 [Ben Laurie (CHATS)]
3450 *) Add BIO_indent() to avoid much slightly worrying code to do
3452 [Ben Laurie (CHATS)]
3454 *) Convert sprintf()/BIO_puts() to BIO_printf().
3455 [Ben Laurie (CHATS)]
3457 *) buffer_gets() could terminate with the buffer only half
3459 [Ben Laurie (CHATS)]
3461 *) Add assertions to prevent user-supplied crypto functions from
3462 overflowing internal buffers by having large block sizes, etc.
3463 [Ben Laurie (CHATS)]
3465 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3467 [Ben Laurie (CHATS)]
3469 *) Eliminate unused copy of key in RC4.
3470 [Ben Laurie (CHATS)]
3472 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3473 [Ben Laurie (CHATS)]
3475 *) Fix off-by-one error in EGD path.
3476 [Ben Laurie (CHATS)]
3478 *) If RANDFILE path is too long, ignore instead of truncating.
3479 [Ben Laurie (CHATS)]
3481 *) Eliminate unused and incorrectly sized X.509 structure
3483 [Ben Laurie (CHATS)]
3485 *) Eliminate unused and dangerous function knumber().
3486 [Ben Laurie (CHATS)]
3488 *) Eliminate unused and dangerous structure, KSSL_ERR.
3489 [Ben Laurie (CHATS)]
3491 *) Protect against overlong session ID context length in an encoded
3492 session object. Since these are local, this does not appear to be
3494 [Ben Laurie (CHATS)]
3496 *) Change from security patch (see 0.9.6e below) that did not affect
3497 the 0.9.6 release series:
3499 Remote buffer overflow in SSL3 protocol - an attacker could
3500 supply an oversized master key in Kerberos-enabled versions.
3502 [Ben Laurie (CHATS)]
3504 *) Change the SSL kerb5 codes to match RFC 2712.
3507 *) Make -nameopt work fully for req and add -reqopt switch.
3508 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3510 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3511 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3513 *) Make sure tests can be performed even if the corresponding algorithms
3514 have been removed entirely. This was also the last step to make
3515 OpenSSL compilable with DJGPP under all reasonable conditions.
3516 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3518 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3519 to allow version independent disabling of normally unselected ciphers,
3520 which may be activated as a side-effect of selecting a single cipher.
3522 (E.g., cipher list string "RSA" enables ciphersuites that are left
3523 out of "ALL" because they do not provide symmetric encryption.
3524 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3525 [Lutz Jaenicke, Bodo Moeller]
3527 *) Add appropriate support for separate platform-dependent build
3528 directories. The recommended way to make a platform-dependent
3529 build directory is the following (tested on Linux), maybe with
3532 # Place yourself outside of the OpenSSL source tree. In
3533 # this example, the environment variable OPENSSL_SOURCE
3534 # is assumed to contain the absolute OpenSSL source directory.
3535 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3536 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3537 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3538 mkdir -p `dirname $F`
3539 ln -s $OPENSSL_SOURCE/$F $F
3542 To be absolutely sure not to disturb the source tree, a "make clean"
3543 is a good thing. If it isn't successfull, don't worry about it,
3544 it probably means the source directory is very clean.
3547 *) Make sure any ENGINE control commands make local copies of string
3548 pointers passed to them whenever necessary. Otherwise it is possible
3549 the caller may have overwritten (or deallocated) the original string
3550 data when a later ENGINE operation tries to use the stored values.
3551 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3553 *) Improve diagnostics in file reading and command-line digests.
3554 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3556 *) Add AES modes CFB and OFB to the object database. Correct an
3557 error in AES-CFB decryption.
3560 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3561 allows existing EVP_CIPHER_CTX structures to be reused after
3562 calling EVP_*Final(). This behaviour is used by encryption
3563 BIOs and some applications. This has the side effect that
3564 applications must explicitly clean up cipher contexts with
3565 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3568 *) Check the values of dna and dnb in bn_mul_recursive before calling
3569 bn_mul_comba (a non zero value means the a or b arrays do not contain
3570 n2 elements) and fallback to bn_mul_normal if either is not zero.
3573 *) Fix escaping of non-ASCII characters when using the -subj option
3574 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3577 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3578 form for "surname", serialNumber has no short form.
3579 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3580 therefore remove "mail" short name for "internet 7".
3581 The OID for unique identifiers in X509 certificates is
3582 x500UniqueIdentifier, not uniqueIdentifier.
3583 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3586 *) Add an "init" command to the ENGINE config module and auto initialize
3587 ENGINEs. Without any "init" command the ENGINE will be initialized
3588 after all ctrl commands have been executed on it. If init=1 the
3589 ENGINE is initailized at that point (ctrls before that point are run
3590 on the uninitialized ENGINE and after on the initialized one). If
3591 init=0 then the ENGINE will not be iniatialized at all.
3594 *) Fix the 'app_verify_callback' interface so that the user-defined
3595 argument is actually passed to the callback: In the
3596 SSL_CTX_set_cert_verify_callback() prototype, the callback
3597 declaration has been changed from
3600 int (*cb)(X509_STORE_CTX *,void *);
3601 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3602 i=s->ctx->app_verify_callback(&ctx)
3603 has been changed into
3604 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3606 To update applications using SSL_CTX_set_cert_verify_callback(),
3607 a dummy argument can be added to their callback functions.
3608 [D. K. Smetters <smetters@parc.xerox.com>]
3610 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3611 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3613 *) Add and OPENSSL_LOAD_CONF define which will cause
3614 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3615 This allows older applications to transparently support certain
3616 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3617 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3618 load the config file and OPENSSL_add_all_algorithms_conf() which will
3619 always load it have also been added.
3622 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3623 Adjust NIDs and EVP layer.
3624 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3626 *) Config modules support in openssl utility.
3628 Most commands now load modules from the config file,
3629 though in a few (such as version) this isn't done
3630 because it couldn't be used for anything.
3632 In the case of ca and req the config file used is
3633 the same as the utility itself: that is the -config
3634 command line option can be used to specify an
3638 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3639 use "openssl_conf" if filename is NULL use default openssl config file.
3642 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3643 config section name. Add a new flag to tolerate a missing config file
3644 and move code to CONF_modules_load_file().
3647 *) Support for crypto accelerator cards from Accelerated Encryption
3648 Processing, www.aep.ie. (Use engine 'aep')
3649 The support was copied from 0.9.6c [engine] and adapted/corrected
3650 to work with the new engine framework.
3651 [AEP Inc. and Richard Levitte]
3653 *) Support for SureWare crypto accelerator cards from Baltimore
3654 Technologies. (Use engine 'sureware')
3655 The support was copied from 0.9.6c [engine] and adapted
3656 to work with the new engine framework.
3659 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3660 make the newer ENGINE framework commands for the CHIL engine work.
3661 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3663 *) Make it possible to produce shared libraries on ReliantUNIX.
3664 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3666 *) Add the configuration target debug-linux-ppro.
3667 Make 'openssl rsa' use the general key loading routines
3668 implemented in apps.c, and make those routines able to
3669 handle the key format FORMAT_NETSCAPE and the variant
3671 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3673 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3674 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3676 *) Add -keyform to rsautl, and document -engine.
3677 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3679 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3680 BIO_R_NO_SUCH_FILE error code rather than the generic
3681 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3684 *) Add new functions
3686 ERR_peek_last_error_line
3687 ERR_peek_last_error_line_data.
3688 These are similar to
3691 ERR_peek_error_line_data,
3692 but report on the latest error recorded rather than the first one
3693 still in the error queue.
3694 [Ben Laurie, Bodo Moeller]
3696 *) default_algorithms option in ENGINE config module. This allows things
3698 default_algorithms = ALL
3699 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3702 *) Prelminary ENGINE config module.
3705 *) New experimental application configuration code.
3708 *) Change the AES code to follow the same name structure as all other
3709 symmetric ciphers, and behave the same way. Move everything to
3710 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3711 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3713 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3714 [Ben Laurie and Theo de Raadt]
3716 *) Add option to output public keys in req command.
3717 [Massimiliano Pala madwolf@openca.org]
3719 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3720 (up to about 10% better than before for P-192 and P-224).
3723 *) New functions/macros
3725 SSL_CTX_set_msg_callback(ctx, cb)
3726 SSL_CTX_set_msg_callback_arg(ctx, arg)
3727 SSL_set_msg_callback(ssl, cb)
3728 SSL_set_msg_callback_arg(ssl, arg)
3730 to request calling a callback function
3732 void cb(int write_p, int version, int content_type,
3733 const void *buf, size_t len, SSL *ssl, void *arg)
3735 whenever a protocol message has been completely received
3736 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3737 protocol version according to which the SSL library interprets
3738 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3739 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3740 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3741 specification (change_cipher_spec(20), alert(21), handshake(22)).
3742 'buf' and 'len' point to the actual message, 'ssl' to the
3743 SSL object, and 'arg' is the application-defined value set by
3744 SSL[_CTX]_set_msg_callback_arg().
3746 'openssl s_client' and 'openssl s_server' have new '-msg' options
3747 to enable a callback that displays all protocol messages.
3750 *) Change the shared library support so shared libraries are built as
3751 soon as the corresponding static library is finished, and thereby get
3752 openssl and the test programs linked against the shared library.
3753 This still only happens when the keyword "shard" has been given to
3754 the configuration scripts.
3756 NOTE: shared library support is still an experimental thing, and
3757 backward binary compatibility is still not guaranteed.
3758 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3760 *) Add support for Subject Information Access extension.
3761 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3763 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3764 additional bytes when new memory had to be allocated, not just
3765 when reusing an existing buffer.
3768 *) New command line and configuration option 'utf8' for the req command.
3769 This allows field values to be specified as UTF8 strings.
3772 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3773 runs for the former and machine-readable output for the latter.
3776 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3777 of the e-mail address in the DN (i.e., it will go into a certificate
3778 extension only). The new configuration file option 'email_in_dn = no'
3779 has the same effect.
3780 [Massimiliano Pala madwolf@openca.org]
3782 *) Change all functions with names starting with des_ to be starting
3783 with DES_ instead. Add wrappers that are compatible with libdes,
3784 but are named _ossl_old_des_*. Finally, add macros that map the
3785 des_* symbols to the corresponding _ossl_old_des_* if libdes
3786 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3787 desired, the des_* symbols will be mapped to DES_*, with one
3790 Since we provide two compatibility mappings, the user needs to
3791 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3792 compatibility is desired. The default (i.e., when that macro
3793 isn't defined) is OpenSSL 0.9.6c compatibility.
3795 There are also macros that enable and disable the support of old
3796 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3797 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3798 are defined, the default will apply: to support the old des routines.
3800 In either case, one must include openssl/des.h to get the correct
3801 definitions. Do not try to just include openssl/des_old.h, that
3804 NOTE: This is a major break of an old API into a new one. Software
3805 authors are encouraged to switch to the DES_ style functions. Some
3806 time in the future, des_old.h and the libdes compatibility functions
3807 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3808 default), and then completely removed.
3811 *) Test for certificates which contain unsupported critical extensions.
3812 If such a certificate is found during a verify operation it is
3813 rejected by default: this behaviour can be overridden by either
3814 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3815 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3816 X509_supported_extension() has also been added which returns 1 if a
3817 particular extension is supported.
3820 *) Modify the behaviour of EVP cipher functions in similar way to digests
3821 to retain compatibility with existing code.
3824 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3825 compatibility with existing code. In particular the 'ctx' parameter does
3826 not have to be to be initialized before the call to EVP_DigestInit() and
3827 it is tidied up after a call to EVP_DigestFinal(). New function
3828 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3829 EVP_MD_CTX_copy() changed to not require the destination to be
3830 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3831 requires the destination to be valid.
3833 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3834 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3837 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3838 so that complete 'Handshake' protocol structures are kept in memory
3839 instead of overwriting 'msg_type' and 'length' with 'body' data.
3842 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3843 [Massimo Santin via Richard Levitte]
3845 *) Major restructuring to the underlying ENGINE code. This includes
3846 reduction of linker bloat, separation of pure "ENGINE" manipulation
3847 (initialisation, etc) from functionality dealing with implementations
3848 of specific crypto iterfaces. This change also introduces integrated
3849 support for symmetric ciphers and digest implementations - so ENGINEs
3850 can now accelerate these by providing EVP_CIPHER and EVP_MD
3851 implementations of their own. This is detailed in crypto/engine/README
3852 as it couldn't be adequately described here. However, there are a few
3853 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3854 were changed in the original introduction of ENGINE code have now
3855 reverted back - the hooking from this code to ENGINE is now a good
3856 deal more passive and at run-time, operations deal directly with
3857 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3858 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3859 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3860 they were not being used by the framework as there is no concept of a
3861 BIGNUM_METHOD and they could not be generalised to the new
3862 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3863 ENGINE_cpy() has been removed as it cannot be consistently defined in
3867 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3870 *) Change mkdef.pl to sort symbols that get the same entry number,
3871 and make sure the automatically generated functions ERR_load_*
3872 become part of libeay.num as well.
3875 *) New function SSL_renegotiate_pending(). This returns true once
3876 renegotiation has been requested (either SSL_renegotiate() call
3877 or HelloRequest/ClientHello receveived from the peer) and becomes
3878 false once a handshake has been completed.
3879 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3880 sends a HelloRequest, but does not ensure that a handshake takes
3881 place. SSL_renegotiate_pending() is useful for checking if the
3882 client has followed the request.)
3885 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3886 By default, clients may request session resumption even during
3887 renegotiation (if session ID contexts permit); with this option,
3888 session resumption is possible only in the first handshake.
3890 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3891 more bits available for options that should not be part of
3892 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3895 *) Add some demos for certificate and certificate request creation.
3898 *) Make maximum certificate chain size accepted from the peer application
3899 settable (SSL*_get/set_max_cert_list()), as proposed by
3900 "Douglas E. Engert" <deengert@anl.gov>.
3903 *) Add support for shared libraries for Unixware-7
3904 (Boyd Lynn Gerber <gerberb@zenez.com>).
3907 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3908 be done prior to destruction. Use this to unload error strings from
3909 ENGINEs that load their own error strings. NB: This adds two new API
3910 functions to "get" and "set" this destroy handler in an ENGINE.
3913 *) Alter all existing ENGINE implementations (except "openssl" and
3914 "openbsd") to dynamically instantiate their own error strings. This
3915 makes them more flexible to be built both as statically-linked ENGINEs
3916 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3917 Also, add stub code to each that makes building them as self-contained
3918 shared-libraries easier (see README.ENGINE).
3921 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3922 implementations into applications that are completely implemented in
3923 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3924 commands that can be used to configure what shared-library to load and
3925 to control aspects of the way it is handled. Also, made an update to
3926 the README.ENGINE file that brings its information up-to-date and
3927 provides some information and instructions on the "dynamic" ENGINE
3928 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3931 *) Make it possible to unload ranges of ERR strings with a new
3932 "ERR_unload_strings" function.
3935 *) Add a copy() function to EVP_MD.
3938 *) Make EVP_MD routines take a context pointer instead of just the
3939 md_data void pointer.
3942 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3943 that the digest can only process a single chunk of data
3944 (typically because it is provided by a piece of
3945 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3946 is only going to provide a single chunk of data, and hence the
3947 framework needn't accumulate the data for oneshot drivers.
3950 *) As with "ERR", make it possible to replace the underlying "ex_data"
3951 functions. This change also alters the storage and management of global
3952 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3953 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3954 index counters. The API functions that use this state have been changed
3955 to take a "class_index" rather than pointers to the class's local STACK
3956 and counter, and there is now an API function to dynamically create new
3957 classes. This centralisation allows us to (a) plug a lot of the
3958 thread-safety problems that existed, and (b) makes it possible to clean
3959 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3960 such data would previously have always leaked in application code and
3961 workarounds were in place to make the memory debugging turn a blind eye
3962 to it. Application code that doesn't use this new function will still
3963 leak as before, but their memory debugging output will announce it now
3964 rather than letting it slide.
3966 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3967 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3968 has a return value to indicate success or failure.
3971 *) Make it possible to replace the underlying "ERR" functions such that the
3972 global state (2 LHASH tables and 2 locks) is only used by the "default"
3973 implementation. This change also adds two functions to "get" and "set"
3974 the implementation prior to it being automatically set the first time
3975 any other ERR function takes place. Ie. an application can call "get",
3976 pass the return value to a module it has just loaded, and that module
3977 can call its own "set" function using that value. This means the
3978 module's "ERR" operations will use (and modify) the error state in the
3979 application and not in its own statically linked copy of OpenSSL code.
3982 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3983 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3984 the operation, and provides a more encapsulated way for external code
3985 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3986 to use these functions rather than manually incrementing the counts.
3988 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3991 *) Add EVP test program.
3994 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3997 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3998 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3999 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4000 These allow a CRL to be built without having to access X509_CRL fields
4001 directly. Modify 'ca' application to use new functions.
4004 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4005 bug workarounds. Rollback attack detection is a security feature.
4006 The problem will only arise on OpenSSL servers when TLSv1 is not
4007 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4008 Software authors not wanting to support TLSv1 will have special reasons
4009 for their choice and can explicitly enable this option.
4010 [Bodo Moeller, Lutz Jaenicke]
4012 *) Rationalise EVP so it can be extended: don't include a union of
4013 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4014 (similar to those existing for EVP_CIPHER_CTX).
4019 EVP_MD_CTX_init(&md); /* new function call */
4020 EVP_DigestInit(&md, EVP_sha1());
4021 EVP_DigestUpdate(&md, in, len);
4022 EVP_DigestFinal(&md, out, NULL);
4023 EVP_MD_CTX_cleanup(&md); /* new function call */
4027 *) Make DES key schedule conform to the usual scheme, as well as
4028 correcting its structure. This means that calls to DES functions
4029 now have to pass a pointer to a des_key_schedule instead of a
4030 plain des_key_schedule (which was actually always a pointer
4033 des_key_schedule ks;
4035 des_set_key_checked(..., &ks);
4036 des_ncbc_encrypt(..., &ks, ...);
4038 (Note that a later change renames 'des_...' into 'DES_...'.)
4041 *) Initial reduction of linker bloat: the use of some functions, such as
4042 PEM causes large amounts of unused functions to be linked in due to
4043 poor organisation. For example pem_all.c contains every PEM function
4044 which has a knock on effect of linking in large amounts of (unused)
4045 ASN1 code. Grouping together similar functions and splitting unrelated
4046 functions prevents this.
4049 *) Cleanup of EVP macros.
4052 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4053 correct _ecb suffix.
4056 *) Add initial OCSP responder support to ocsp application. The
4057 revocation information is handled using the text based index
4058 use by the ca application. The responder can either handle
4059 requests generated internally, supplied in files (for example
4060 via a CGI script) or using an internal minimal server.
4063 *) Add configuration choices to get zlib compression for TLS.
4066 *) Changes to Kerberos SSL for RFC 2712 compliance:
4067 1. Implemented real KerberosWrapper, instead of just using
4068 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4069 2. Implemented optional authenticator field of KerberosWrapper.
4071 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4072 and authenticator structs; see crypto/krb5/.
4074 Generalized Kerberos calls to support multiple Kerberos libraries.
4075 [Vern Staats <staatsvr@asc.hpc.mil>,
4076 Jeffrey Altman <jaltman@columbia.edu>
4077 via Richard Levitte]
4079 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4080 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4081 values for each of the key sizes rather than having just
4082 parameters (and 'speed' generating keys each time).
4085 *) Speed up EVP routines.
4088 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4089 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4090 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4091 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4093 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4094 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4095 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4098 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4100 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4103 *) Added the OS2-EMX target.
4104 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4106 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4107 to support NCONF routines in extension code. New function CONF_set_nconf()
4108 to allow functions which take an NCONF to also handle the old LHASH
4109 structure: this means that the old CONF compatible routines can be
4110 retained (in particular wrt extensions) without having to duplicate the
4111 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4114 *) Enhance the general user interface with mechanisms for inner control
4115 and with possibilities to have yes/no kind of prompts.
4118 *) Change all calls to low level digest routines in the library and
4119 applications to use EVP. Add missing calls to HMAC_cleanup() and
4120 don't assume HMAC_CTX can be copied using memcpy().
4121 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4123 *) Add the possibility to control engines through control names but with
4124 arbitrary arguments instead of just a string.
4125 Change the key loaders to take a UI_METHOD instead of a callback
4126 function pointer. NOTE: this breaks binary compatibility with earlier
4127 versions of OpenSSL [engine].
4128 Adapt the nCipher code for these new conditions and add a card insertion
4132 *) Enhance the general user interface with mechanisms to better support
4133 dialog box interfaces, application-defined prompts, the possibility
4134 to use defaults (for example default passwords from somewhere else)
4135 and interrupts/cancellations.
4138 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4139 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4142 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4143 tidy up some unnecessarily weird code in 'sk_new()').
4144 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4146 *) Change the key loading routines for ENGINEs to use the same kind
4147 callback (pem_password_cb) as all other routines that need this
4151 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4152 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4153 than this minimum value is recommended.
4156 *) New random seeder for OpenVMS, using the system process statistics
4157 that are easily reachable.
4160 *) Windows apparently can't transparently handle global
4161 variables defined in DLLs. Initialisations such as:
4163 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4165 wont compile. This is used by the any applications that need to
4166 declare their own ASN1 modules. This was fixed by adding the option
4167 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4168 needed for static libraries under Win32.
4171 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4172 setting of purpose and trust fields. New X509_STORE trust and
4173 purpose functions and tidy up setting in other SSL functions.
4176 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4177 structure. These are inherited by X509_STORE_CTX when it is
4178 initialised. This allows various defaults to be set in the
4179 X509_STORE structure (such as flags for CRL checking and custom
4180 purpose or trust settings) for functions which only use X509_STORE_CTX
4181 internally such as S/MIME.
4183 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4184 trust settings if they are not set in X509_STORE. This allows X509_STORE
4185 purposes and trust (in S/MIME for example) to override any set by default.
4187 Add command line options for CRL checking to smime, s_client and s_server
4191 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4192 are set then the CRL is looked up in the X509_STORE structure and
4193 its validity and signature checked, then if the certificate is found
4194 in the CRL the verify fails with a revoked error.
4196 Various new CRL related callbacks added to X509_STORE_CTX structure.
4198 Command line options added to 'verify' application to support this.
4200 This needs some additional work, such as being able to handle multiple
4201 CRLs with different times, extension based lookup (rather than just
4202 by subject name) and ultimately more complete V2 CRL extension
4206 *) Add a general user interface API (crypto/ui/). This is designed
4207 to replace things like des_read_password and friends (backward
4208 compatibility functions using this new API are provided).
4209 The purpose is to remove prompting functions from the DES code
4210 section as well as provide for prompting through dialog boxes in
4211 a window system and the like.
4214 *) Add "ex_data" support to ENGINE so implementations can add state at a
4215 per-structure level rather than having to store it globally.
4218 *) Make it possible for ENGINE structures to be copied when retrieved by
4219 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4220 This causes the "original" ENGINE structure to act like a template,
4221 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4222 operational state can be localised to each ENGINE structure, despite the
4223 fact they all share the same "methods". New ENGINE structures returned in
4224 this case have no functional references and the return value is the single
4225 structural reference. This matches the single structural reference returned
4226 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4230 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4231 needs to match any other type at all we need to manually clear the
4235 *) Changes to the "openssl engine" utility to include;
4236 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4237 about an ENGINE's available control commands.
4238 - executing control commands from command line arguments using the
4239 '-pre' and '-post' switches. '-post' is only used if '-t' is
4240 specified and the ENGINE is successfully initialised. The syntax for
4241 the individual commands are colon-separated, for example;
4242 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4245 *) New dynamic control command support for ENGINEs. ENGINEs can now
4246 declare their own commands (numbers), names (strings), descriptions,
4247 and input types for run-time discovery by calling applications. A
4248 subset of these commands are implicitly classed as "executable"
4249 depending on their input type, and only these can be invoked through
4250 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4251 can be based on user input, config files, etc). The distinction is
4252 that "executable" commands cannot return anything other than a boolean
4253 result and can only support numeric or string input, whereas some
4254 discoverable commands may only be for direct use through
4255 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4256 pointers, or other custom uses. The "executable" commands are to
4257 support parameterisations of ENGINE behaviour that can be
4258 unambiguously defined by ENGINEs and used consistently across any
4259 OpenSSL-based application. Commands have been added to all the
4260 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4261 control over shared-library paths without source code alterations.
4264 *) Changed all ENGINE implementations to dynamically allocate their
4265 ENGINEs rather than declaring them statically. Apart from this being
4266 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4267 this also allows the implementations to compile without using the
4268 internal engine_int.h header.
4271 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4272 'const' value. Any code that should be able to modify a RAND_METHOD
4273 should already have non-const pointers to it (ie. they should only
4274 modify their own ones).
4277 *) Made a variety of little tweaks to the ENGINE code.
4278 - "atalla" and "ubsec" string definitions were moved from header files
4279 to C code. "nuron" string definitions were placed in variables
4280 rather than hard-coded - allowing parameterisation of these values
4281 later on via ctrl() commands.
4282 - Removed unused "#if 0"'d code.
4283 - Fixed engine list iteration code so it uses ENGINE_free() to release
4284 structural references.
4285 - Constified the RAND_METHOD element of ENGINE structures.
4286 - Constified various get/set functions as appropriate and added
4287 missing functions (including a catch-all ENGINE_cpy that duplicates
4288 all ENGINE values onto a new ENGINE except reference counts/state).
4289 - Removed NULL parameter checks in get/set functions. Setting a method
4290 or function to NULL is a way of cancelling out a previously set
4291 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4292 and doesn't justify the extra error symbols and code.
4293 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4294 flags from engine_int.h to engine.h.
4295 - Changed prototypes for ENGINE handler functions (init(), finish(),
4296 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4299 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4300 to the algorithm using long division. The binary algorithm can be
4301 used only if the modulus is odd. On 32-bit systems, it is faster
4302 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4303 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4304 up to 450 bits. In 64-bit environments, the binary algorithm
4305 appears to be advantageous for much longer moduli; here we use it
4306 for moduli up to 2048 bits.
4309 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4310 could not support the combine flag in choice fields.
4313 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4314 extensions from a certificate request to the certificate.
4317 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4318 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4319 file: this allows the display of the certificate about to be
4320 signed to be customised, to allow certain fields to be included
4321 or excluded and extension details. The old system didn't display
4322 multicharacter strings properly, omitted fields not in the policy
4323 and couldn't display additional details such as extensions.
4326 *) Function EC_POINTs_mul for multiple scalar multiplication
4327 of an arbitrary number of elliptic curve points
4328 \sum scalars[i]*points[i],
4329 optionally including the generator defined for the EC_GROUP:
4330 scalar*generator + \sum scalars[i]*points[i].
4332 EC_POINT_mul is a simple wrapper function for the typical case
4333 that the point list has just one item (besides the optional
4337 *) First EC_METHODs for curves over GF(p):
4339 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4340 operations and provides various method functions that can also
4341 operate with faster implementations of modular arithmetic.
4343 EC_GFp_mont_method() reuses most functions that are part of
4344 EC_GFp_simple_method, but uses Montgomery arithmetic.
4346 [Bodo Moeller; point addition and point doubling
4347 implementation directly derived from source code provided by
4348 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4350 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4351 crypto/ec/ec_lib.c):
4353 Curves are EC_GROUP objects (with an optional group generator)
4354 based on EC_METHODs that are built into the library.
4356 Points are EC_POINT objects based on EC_GROUP objects.
4358 Most of the framework would be able to handle curves over arbitrary
4359 finite fields, but as there are no obvious types for fields other
4360 than GF(p), some functions are limited to that for now.
4363 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4364 that the file contains a complete HTTP response.
4367 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4368 change the def and num file printf format specifier from "%-40sXXX"
4369 to "%-39s XXX". The latter will always guarantee a space after the
4370 field while the former will cause them to run together if the field
4371 is 40 of more characters long.
4374 *) Constify the cipher and digest 'method' functions and structures
4375 and modify related functions to take constant EVP_MD and EVP_CIPHER
4379 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4380 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4383 *) Modify EVP_Digest*() routines so they now return values. Although the
4384 internal software routines can never fail additional hardware versions
4388 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4390 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4391 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4394 ERR_R_NESTED_ASN1_ERROR
4396 ERR_R_MISSING_ASN1_EOS
4397 were 4 .. 9, conflicting with
4398 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4400 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4401 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4403 Add new error code 'ERR_R_INTERNAL_ERROR'.
4406 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4410 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4411 sets the subject name for a new request or supersedes the
4412 subject name in a given request. Formats that can be parsed are
4413 'CN=Some Name, OU=myOU, C=IT'
4415 'CN=Some Name/OU=myOU/C=IT'.
4417 Add options '-batch' and '-verbose' to 'openssl req'.
4418 [Massimiliano Pala <madwolf@hackmasters.net>]
4420 *) Introduce the possibility to access global variables through
4421 functions on platform were that's the best way to handle exporting
4422 global variables in shared libraries. To enable this functionality,
4423 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4424 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4425 is normally done by Configure or something similar).
4427 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4428 in the source file (foo.c) like this:
4430 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4431 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4433 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4434 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4436 OPENSSL_DECLARE_GLOBAL(int,foo);
4437 #define foo OPENSSL_GLOBAL_REF(foo)
4438 OPENSSL_DECLARE_GLOBAL(double,bar);
4439 #define bar OPENSSL_GLOBAL_REF(bar)
4441 The #defines are very important, and therefore so is including the
4442 header file everywhere where the defined globals are used.
4444 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4445 of ASN.1 items, but that structure is a bit different.
4447 The largest change is in util/mkdef.pl which has been enhanced with
4448 better and easier to understand logic to choose which symbols should
4449 go into the Windows .def files as well as a number of fixes and code
4450 cleanup (among others, algorithm keywords are now sorted
4451 lexicographically to avoid constant rewrites).
4454 *) In BN_div() keep a copy of the sign of 'num' before writing the
4455 result to 'rm' because if rm==num the value will be overwritten
4456 and produce the wrong result if 'num' is negative: this caused
4457 problems with BN_mod() and BN_nnmod().
4460 *) Function OCSP_request_verify(). This checks the signature on an
4461 OCSP request and verifies the signer certificate. The signer
4462 certificate is just checked for a generic purpose and OCSP request
4466 *) Add OCSP_check_validity() function to check the validity of OCSP
4467 responses. OCSP responses are prepared in real time and may only
4468 be a few seconds old. Simply checking that the current time lies
4469 between thisUpdate and nextUpdate max reject otherwise valid responses
4470 caused by either OCSP responder or client clock inaccuracy. Instead
4471 we allow thisUpdate and nextUpdate to fall within a certain period of
4472 the current time. The age of the response can also optionally be
4473 checked. Two new options -validity_period and -status_age added to
4477 *) If signature or public key algorithm is unrecognized print out its
4478 OID rather that just UNKNOWN.
4481 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4482 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4483 ID to be generated from the issuer certificate alone which can then be
4484 passed to OCSP_id_issuer_cmp().
4487 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4488 ASN1 modules to export functions returning ASN1_ITEM pointers
4489 instead of the ASN1_ITEM structures themselves. This adds several
4490 new macros which allow the underlying ASN1 function/structure to
4491 be accessed transparently. As a result code should not use ASN1_ITEM
4492 references directly (such as &X509_it) but instead use the relevant
4493 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4494 use of the new ASN1 code on platforms where exporting structures
4495 is problematical (for example in shared libraries) but exporting
4496 functions returning pointers to structures is not.
4499 *) Add support for overriding the generation of SSL/TLS session IDs.
4500 These callbacks can be registered either in an SSL_CTX or per SSL.
4501 The purpose of this is to allow applications to control, if they wish,
4502 the arbitrary values chosen for use as session IDs, particularly as it
4503 can be useful for session caching in multiple-server environments. A
4504 command-line switch for testing this (and any client code that wishes
4505 to use such a feature) has been added to "s_server".
4506 [Geoff Thorpe, Lutz Jaenicke]
4508 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4509 of the form '#if defined(...) || defined(...) || ...' and
4510 '#if !defined(...) && !defined(...) && ...'. This also avoids
4511 the growing number of special cases it was previously handling.
4514 *) Make all configuration macros available for application by making
4515 sure they are available in opensslconf.h, by giving them names starting
4516 with "OPENSSL_" to avoid conflicts with other packages and by making
4517 sure e_os2.h will cover all platform-specific cases together with
4519 Additionally, it is now possible to define configuration/platform-
4520 specific names (called "system identities"). In the C code, these
4521 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4522 macro with the name beginning with "OPENSSL_SYS_", which is determined
4523 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4527 *) New option -set_serial to 'req' and 'x509' this allows the serial
4528 number to use to be specified on the command line. Previously self
4529 signed certificates were hard coded with serial number 0 and the
4530 CA options of 'x509' had to use a serial number in a file which was
4534 *) New options to 'ca' utility to support V2 CRL entry extensions.
4535 Currently CRL reason, invalidity date and hold instruction are
4536 supported. Add new CRL extensions to V3 code and some new objects.
4539 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4540 disable standard block padding (aka PKCS#5 padding) in the EVP
4541 API, which was previously mandatory. This means that the data is
4542 not padded in any way and so the total length much be a multiple
4543 of the block size, otherwise an error occurs.
4546 *) Initial (incomplete) OCSP SSL support.
4549 *) New function OCSP_parse_url(). This splits up a URL into its host,
4550 port and path components: primarily to parse OCSP URLs. New -url
4551 option to ocsp utility.
4554 *) New nonce behavior. The return value of OCSP_check_nonce() now
4555 reflects the various checks performed. Applications can decide
4556 whether to tolerate certain situations such as an absent nonce
4557 in a response when one was present in a request: the ocsp application
4558 just prints out a warning. New function OCSP_add1_basic_nonce()
4559 this is to allow responders to include a nonce in a response even if
4560 the request is nonce-less.
4563 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4564 skipped when using openssl x509 multiple times on a single input file,
4565 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4568 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4569 set string type: to handle setting ASN1_TIME structures. Fix ca
4570 utility to correctly initialize revocation date of CRLs.
4573 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4574 the clients preferred ciphersuites and rather use its own preferences.
4575 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4576 Internet Explorer by ensuring unchanged hash method during stepup.
4577 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4580 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4581 to aes and add a new 'exist' option to print out symbols that don't
4585 *) Additional options to ocsp utility to allow flags to be set and
4586 additional certificates supplied.
4589 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4590 OCSP client a number of certificate to only verify the response
4594 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4595 handle the new API. Currently only ECB, CBC modes supported. Add new
4598 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4599 Encryption Standard (AES) Ciphersuites for Transport Layer
4600 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4601 not enabled by default and were not part of the "ALL" ciphersuite
4602 alias because they were not yet official; they could be
4603 explicitly requested by specifying the "AESdraft" ciphersuite
4604 group alias. In the final release of OpenSSL 0.9.7, the group
4605 alias is called "AES" and is part of "ALL".)
4606 [Ben Laurie, Steve Henson, Bodo Moeller]
4608 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4609 request to response.
4612 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4613 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4614 extract information from a certificate request. OCSP_response_create()
4615 creates a response and optionally adds a basic response structure.
4616 OCSP_basic_add1_status() adds a complete single response to a basic
4617 response and returns the OCSP_SINGLERESP structure just added (to allow
4618 extensions to be included for example). OCSP_basic_add1_cert() adds a
4619 certificate to a basic response and OCSP_basic_sign() signs a basic
4620 response with various flags. New helper functions ASN1_TIME_check()
4621 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4622 (converts ASN1_TIME to GeneralizedTime).
4625 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4626 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4627 structure from a certificate. X509_pubkey_digest() digests the public_key
4628 contents: this is used in various key identifiers.
4631 *) Make sk_sort() tolerate a NULL argument.
4632 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4634 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4635 passed by the function are trusted implicitly. If any of them signed the
4636 response then it is assumed to be valid and is not verified.
4639 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4640 to data. This was previously part of the PKCS7 ASN1 code. This
4641 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4642 [Steve Henson, reported by Kenneth R. Robinette
4643 <support@securenetterm.com>]
4645 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4646 routines: without these tracing memory leaks is very painful.
4647 Fix leaks in PKCS12 and PKCS7 routines.
4650 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4651 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4652 effectively meant GeneralizedTime would never be used. Now it
4653 is initialised to -1 but X509_time_adj() now has to check the value
4654 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4655 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4656 [Steve Henson, reported by Kenneth R. Robinette
4657 <support@securenetterm.com>]
4659 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4660 result in a zero length in the ASN1_INTEGER structure which was
4661 not consistent with the structure when d2i_ASN1_INTEGER() was used
4662 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4663 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4664 where it did not print out a minus for negative ASN1_INTEGER.
4667 *) Add summary printout to ocsp utility. The various functions which
4668 convert status values to strings have been renamed to:
4669 OCSP_response_status_str(), OCSP_cert_status_str() and
4670 OCSP_crl_reason_str() and are no longer static. New options
4671 to verify nonce values and to disable verification. OCSP response
4672 printout format cleaned up.
4675 *) Add additional OCSP certificate checks. These are those specified
4676 in RFC2560. This consists of two separate checks: the CA of the
4677 certificate being checked must either be the OCSP signer certificate
4678 or the issuer of the OCSP signer certificate. In the latter case the
4679 OCSP signer certificate must contain the OCSP signing extended key
4680 usage. This check is performed by attempting to match the OCSP
4681 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4682 in the OCSP_CERTID structures of the response.
4685 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4686 and related routines. This uses the standard OpenSSL certificate
4687 verify routines to perform initial checks (just CA validity) and
4688 to obtain the certificate chain. Then additional checks will be
4689 performed on the chain. Currently the root CA is checked to see
4690 if it is explicitly trusted for OCSP signing. This is used to set
4691 a root CA as a global signing root: that is any certificate that
4692 chains to that CA is an acceptable OCSP signing certificate.
4695 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4696 extensions from a separate configuration file.
4697 As when reading extensions from the main configuration file,
4698 the '-extensions ...' option may be used for specifying the
4700 [Massimiliano Pala <madwolf@comune.modena.it>]
4702 *) New OCSP utility. Allows OCSP requests to be generated or
4703 read. The request can be sent to a responder and the output
4704 parsed, outputed or printed in text form. Not complete yet:
4705 still needs to check the OCSP response validity.
4708 *) New subcommands for 'openssl ca':
4709 'openssl ca -status <serial>' prints the status of the cert with
4710 the given serial number (according to the index file).
4711 'openssl ca -updatedb' updates the expiry status of certificates
4713 [Massimiliano Pala <madwolf@comune.modena.it>]
4715 *) New '-newreq-nodes' command option to CA.pl. This is like
4716 '-newreq', but calls 'openssl req' with the '-nodes' option
4717 so that the resulting key is not encrypted.
4718 [Damien Miller <djm@mindrot.org>]
4720 *) New configuration for the GNU Hurd.
4721 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4723 *) Initial code to implement OCSP basic response verify. This
4724 is currently incomplete. Currently just finds the signer's
4725 certificate and verifies the signature on the response.
4728 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4729 value of OPENSSLDIR. This is available via the new '-d' option
4730 to 'openssl version', and is also included in 'openssl version -a'.
4733 *) Allowing defining memory allocation callbacks that will be given
4734 file name and line number information in additional arguments
4735 (a const char* and an int). The basic functionality remains, as
4736 well as the original possibility to just replace malloc(),
4737 realloc() and free() by functions that do not know about these
4738 additional arguments. To register and find out the current
4739 settings for extended allocation functions, the following
4740 functions are provided:
4742 CRYPTO_set_mem_ex_functions
4743 CRYPTO_set_locked_mem_ex_functions
4744 CRYPTO_get_mem_ex_functions
4745 CRYPTO_get_locked_mem_ex_functions
4747 These work the same way as CRYPTO_set_mem_functions and friends.
4748 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4749 extended allocation function is enabled.
4750 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4751 a conventional allocation function is enabled.
4752 [Richard Levitte, Bodo Moeller]
4754 *) Finish off removing the remaining LHASH function pointer casts.
4755 There should no longer be any prototype-casting required when using
4756 the LHASH abstraction, and any casts that remain are "bugs". See
4757 the callback types and macros at the head of lhash.h for details
4758 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4761 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4762 If /dev/[u]random devices are not available or do not return enough
4763 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4765 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4766 /etc/entropy will be queried once each in this sequence, quering stops
4767 when enough entropy was collected without querying more sockets.
4770 *) Change the Unix RAND_poll() variant to be able to poll several
4771 random devices, as specified by DEVRANDOM, until a sufficient amount
4772 of data has been collected. We spend at most 10 ms on each file
4773 (select timeout) and read in non-blocking mode. DEVRANDOM now
4774 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4775 (previously it was just the string "/dev/urandom"), so on typical
4776 platforms the 10 ms delay will never occur.
4777 Also separate out the Unix variant to its own file, rand_unix.c.
4778 For VMS, there's a currently-empty rand_vms.c.
4781 *) Move OCSP client related routines to ocsp_cl.c. These
4782 provide utility functions which an application needing
4783 to issue a request to an OCSP responder and analyse the
4784 response will typically need: as opposed to those which an
4785 OCSP responder itself would need which will be added later.
4787 OCSP_request_sign() signs an OCSP request with an API similar
4788 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4789 response. OCSP_response_get1_basic() extracts basic response
4790 from response. OCSP_resp_find_status(): finds and extracts status
4791 information from an OCSP_CERTID structure (which will be created
4792 when the request structure is built). These are built from lower
4793 level functions which work on OCSP_SINGLERESP structures but
4794 wont normally be used unless the application wishes to examine
4795 extensions in the OCSP response for example.
4797 Replace nonce routines with a pair of functions.
4798 OCSP_request_add1_nonce() adds a nonce value and optionally
4799 generates a random value. OCSP_check_nonce() checks the
4800 validity of the nonce in an OCSP response.
4803 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4804 This doesn't copy the supplied OCSP_CERTID and avoids the
4805 need to free up the newly created id. Change return type
4806 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4807 This can then be used to add extensions to the request.
4808 Deleted OCSP_request_new(), since most of its functionality
4809 is now in OCSP_REQUEST_new() (and the case insensitive name
4810 clash) apart from the ability to set the request name which
4811 will be added elsewhere.
4814 *) Update OCSP API. Remove obsolete extensions argument from
4815 various functions. Extensions are now handled using the new
4816 OCSP extension code. New simple OCSP HTTP function which
4817 can be used to send requests and parse the response.
4820 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4821 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4822 uses the special reorder version of SET OF to sort the attributes
4823 and reorder them to match the encoded order. This resolves a long
4824 standing problem: a verify on a PKCS7 structure just after signing
4825 it used to fail because the attribute order did not match the
4826 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4827 it uses the received order. This is necessary to tolerate some broken
4828 software that does not order SET OF. This is handled by encoding
4829 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4830 to produce the required SET OF.
4833 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4834 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4835 files to get correct declarations of the ASN.1 item variables.
4838 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4839 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4840 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4841 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4842 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4843 ASN1_ITEM and no wrapper functions.
4846 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4847 replace the old function pointer based I/O routines. Change most of
4848 the *_d2i_bio() and *_d2i_fp() functions to use these.
4851 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4852 lines, recognice more "algorithms" that can be deselected, and make
4853 it complain about algorithm deselection that isn't recognised.
4856 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4857 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4858 to use new functions. Add NO_ASN1_OLD which can be set to remove
4859 some old style ASN1 functions: this can be used to determine if old
4860 code will still work when these eventually go away.
4863 *) New extension functions for OCSP structures, these follow the
4864 same conventions as certificates and CRLs.
4867 *) New function X509V3_add1_i2d(). This automatically encodes and
4868 adds an extension. Its behaviour can be customised with various
4869 flags to append, replace or delete. Various wrappers added for
4870 certifcates and CRLs.
4873 *) Fix to avoid calling the underlying ASN1 print routine when
4874 an extension cannot be parsed. Correct a typo in the
4875 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4878 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4879 entries for variables.
4882 *) Add functionality to apps/openssl.c for detecting locking
4883 problems: As the program is single-threaded, all we have
4884 to do is register a locking callback using an array for
4885 storing which locks are currently held by the program.
4888 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4889 SSL_get_ex_data_X509_STORE_idx(), which is used in
4890 ssl_verify_cert_chain() and thus can be called at any time
4891 during TLS/SSL handshakes so that thread-safety is essential.
4892 Unfortunately, the ex_data design is not at all suited
4893 for multi-threaded use, so it probably should be abolished.
4896 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4897 [Broadcom, tweaked and integrated by Geoff Thorpe]
4899 *) Move common extension printing code to new function
4900 X509V3_print_extensions(). Reorganise OCSP print routines and
4901 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4904 *) New function X509_signature_print() to remove duplication in some
4908 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4909 set (this was treated exactly the same as SET OF previously). This
4910 is used to reorder the STACK representing the structure to match the
4911 encoding. This will be used to get round a problem where a PKCS7
4912 structure which was signed could not be verified because the STACK
4913 order did not reflect the encoded order.
4916 *) Reimplement the OCSP ASN1 module using the new code.
4919 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4920 for its ASN1 operations. The old style function pointers still exist
4921 for now but they will eventually go away.
4924 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4925 completely replaces the old ASN1 functionality with a table driven
4926 encoder and decoder which interprets an ASN1_ITEM structure describing
4927 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4928 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4929 has also been converted to the new form.
4932 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4933 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4934 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4935 for negative moduli.
4938 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4939 of not touching the result's sign bit.
4942 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4946 *) Changed the LHASH code to use prototypes for callbacks, and created
4947 macros to declare and implement thin (optionally static) functions
4948 that provide type-safety and avoid function pointer casting for the
4949 type-specific callbacks.
4952 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4954 [Veers Staats <staatsvr@asc.hpc.mil>,
4955 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4957 *) Reformat the FAQ so the different questions and answers can be divided
4958 in sections depending on the subject.
4961 *) Have the zlib compression code load ZLIB.DLL dynamically under
4965 *) New function BN_mod_sqrt for computing square roots modulo a prime
4966 (using the probabilistic Tonelli-Shanks algorithm unless
4967 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4968 be handled deterministically).
4969 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4971 *) Make BN_mod_inverse faster by explicitly handling small quotients
4972 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4973 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4976 *) New function BN_kronecker.
4979 *) Fix BN_gcd so that it works on negative inputs; the result is
4980 positive unless both parameters are zero.
4981 Previously something reasonably close to an infinite loop was
4982 possible because numbers could be growing instead of shrinking
4983 in the implementation of Euclid's algorithm.
4986 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4987 sign of the number in question.
4989 Fix BN_is_word(a,w) to work correctly for w == 0.
4991 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4992 because its test if the absolute value of 'a' equals 'w'.
4993 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4994 it exists mostly for use in the implementations of BN_is_zero(),
4995 BN_is_one(), and BN_is_word().
4998 *) New function BN_swap.
5001 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5002 the exponentiation functions are more likely to produce reasonable
5003 results on negative inputs.
5006 *) Change BN_mod_mul so that the result is always non-negative.
5007 Previously, it could be negative if one of the factors was negative;
5008 I don't think anyone really wanted that behaviour.
5011 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5012 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5013 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5014 and add new functions:
5023 BN_mod_lshift1_quick
5027 These functions always generate non-negative results.
5029 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5030 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5032 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5033 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5034 be reduced modulo m.
5035 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5038 The following entry accidentily appeared in the CHANGES file
5039 distributed with OpenSSL 0.9.7. The modifications described in
5040 it do *not* apply to OpenSSL 0.9.7.
5042 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5043 was actually never needed) and in BN_mul(). The removal in BN_mul()
5044 required a small change in bn_mul_part_recursive() and the addition
5045 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5046 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5047 bn_sub_words() and bn_add_words() except they take arrays with
5052 *) In 'openssl passwd', verify passwords read from the terminal
5053 unless the '-salt' option is used (which usually means that
5054 verification would just waste user's time since the resulting
5055 hash is going to be compared with some given password hash)
5056 or the new '-noverify' option is used.
5058 This is an incompatible change, but it does not affect
5059 non-interactive use of 'openssl passwd' (passwords on the command
5060 line, '-stdin' option, '-in ...' option) and thus should not
5064 *) Remove all references to RSAref, since there's no more need for it.
5067 *) Make DSO load along a path given through an environment variable
5068 (SHLIB_PATH) with shl_load().
5071 *) Constify the ENGINE code as a result of BIGNUM constification.
5072 Also constify the RSA code and most things related to it. In a
5073 few places, most notable in the depth of the ASN.1 code, ugly
5074 casts back to non-const were required (to be solved at a later
5078 *) Make it so the openssl application has all engines loaded by default.
5081 *) Constify the BIGNUM routines a little more.
5084 *) Add the following functions:
5086 ENGINE_load_cswift()
5088 ENGINE_load_atalla()
5090 ENGINE_load_builtin_engines()
5092 That way, an application can itself choose if external engines that
5093 are built-in in OpenSSL shall ever be used or not. The benefit is
5094 that applications won't have to be linked with libdl or other dso
5095 libraries unless it's really needed.
5097 Changed 'openssl engine' to load all engines on demand.
5098 Changed the engine header files to avoid the duplication of some
5099 declarations (they differed!).
5102 *) 'openssl engine' can now list capabilities.
5105 *) Better error reporting in 'openssl engine'.
5108 *) Never call load_dh_param(NULL) in s_server.
5111 *) Add engine application. It can currently list engines by name and
5112 identity, and test if they are actually available.
5115 *) Improve RPM specification file by forcing symbolic linking and making
5116 sure the installed documentation is also owned by root.root.
5117 [Damien Miller <djm@mindrot.org>]
5119 *) Give the OpenSSL applications more possibilities to make use of
5120 keys (public as well as private) handled by engines.
5123 *) Add OCSP code that comes from CertCo.
5126 *) Add VMS support for the Rijndael code.
5129 *) Added untested support for Nuron crypto accelerator.
5132 *) Add support for external cryptographic devices. This code was
5133 previously distributed separately as the "engine" branch.
5134 [Geoff Thorpe, Richard Levitte]
5136 *) Rework the filename-translation in the DSO code. It is now possible to
5137 have far greater control over how a "name" is turned into a filename
5138 depending on the operating environment and any oddities about the
5139 different shared library filenames on each system.
5142 *) Support threads on FreeBSD-elf in Configure.
5145 *) Fix for SHA1 assembly problem with MASM: it produces
5146 warnings about corrupt line number information when assembling
5147 with debugging information. This is caused by the overlapping
5149 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5152 NCONF_get_number() has no error checking at all. As a replacement,
5153 NCONF_get_number_e() is defined (_e for "error checking") and is
5154 promoted strongly. The old NCONF_get_number is kept around for
5155 binary backward compatibility.
5156 Make it possible for methods to load from something other than a BIO,
5157 by providing a function pointer that is given a name instead of a BIO.
5158 For example, this could be used to load configuration data from an
5162 *) Fix for non blocking accept BIOs. Added new I/O special reason
5163 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5164 with non blocking I/O was not possible because no retry code was
5165 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5169 *) Added the beginnings of Rijndael support.
5172 *) Fix for bug in DirectoryString mask setting. Add support for
5173 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5174 to allow certificate printing to more controllable, additional
5175 'certopt' option to 'x509' to allow new printing options to be
5179 *) Clean old EAY MD5 hack from e_os.h.
5182 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5184 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5185 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5186 [Joe Orton, Steve Henson]
5188 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5190 *) Fix additional bug revealed by the NISCC test suite:
5192 Stop bug triggering large recursion when presented with
5193 certain ASN.1 tags (CVE-2003-0851)
5196 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5198 *) Fix various bugs revealed by running the NISCC test suite:
5200 Stop out of bounds reads in the ASN1 code when presented with
5201 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5203 If verify callback ignores invalid public key errors don't try to check
5204 certificate signature with the NULL public key.
5208 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5209 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5213 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5214 extra data after the compression methods not only for TLS 1.0
5215 but also for SSL 3.0 (as required by the specification).
5216 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5218 *) Change X509_certificate_type() to mark the key as exported/exportable
5219 when it's 512 *bits* long, not 512 bytes.
5222 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5224 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5225 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5226 a protocol version number mismatch like a decryption error
5227 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5230 *) Turn on RSA blinding by default in the default implementation
5231 to avoid a timing attack. Applications that don't want it can call
5232 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5233 They would be ill-advised to do so in most cases.
5234 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5236 *) Change RSA blinding code so that it works when the PRNG is not
5237 seeded (in this case, the secret RSA exponent is abused as
5238 an unpredictable seed -- if it is not unpredictable, there
5239 is no point in blinding anyway). Make RSA blinding thread-safe
5240 by remembering the creator's thread ID in rsa->blinding and
5241 having all other threads use local one-time blinding factors
5242 (this requires more computation than sharing rsa->blinding, but
5243 avoids excessive locking; and if an RSA object is not shared
5244 between threads, blinding will still be very fast).
5247 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5249 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5250 via timing by performing a MAC computation even if incorrrect
5251 block cipher padding has been found. This is a countermeasure
5252 against active attacks where the attacker has to distinguish
5253 between bad padding and a MAC verification error. (CVE-2003-0078)
5255 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5256 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5257 Martin Vuagnoux (EPFL, Ilion)]
5259 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5261 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5262 memory from it's contents. This is done with a counter that will
5263 place alternating values in each byte. This can be used to solve
5264 two issues: 1) the removal of calls to memset() by highly optimizing
5265 compilers, and 2) cleansing with other values than 0, since those can
5266 be read through on certain media, for example a swap space on disk.
5269 *) Bugfix: client side session caching did not work with external caching,
5270 because the session->cipher setting was not restored when reloading
5271 from the external cache. This problem was masked, when
5272 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5273 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5276 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5277 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5278 [Zeev Lieber <zeev-l@yahoo.com>]
5280 *) Undo an undocumented change introduced in 0.9.6e which caused
5281 repeated calls to OpenSSL_add_all_ciphers() and
5282 OpenSSL_add_all_digests() to be ignored, even after calling
5286 *) Change the default configuration reader to deal with last line not
5287 being properly terminated.
5290 *) Change X509_NAME_cmp() so it applies the special rules on handling
5291 DN values that are of type PrintableString, as well as RDNs of type
5292 emailAddress where the value has the type ia5String.
5293 [stefank@valicert.com via Richard Levitte]
5295 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5296 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5297 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5298 the bitwise-OR of the two for use by the majority of applications
5299 wanting this behaviour, and update the docs. The documented
5300 behaviour and actual behaviour were inconsistent and had been
5301 changing anyway, so this is more a bug-fix than a behavioural
5303 [Geoff Thorpe, diagnosed by Nadav Har'El]
5305 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5306 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5309 *) Fix initialization code race conditions in
5310 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5311 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5312 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5313 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5314 ssl2_get_cipher_by_char(),
5315 ssl3_get_cipher_by_char().
5316 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5318 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5319 the cached sessions are flushed, as the remove_cb() might use ex_data
5320 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5321 (see [openssl.org #212]).
5322 [Geoff Thorpe, Lutz Jaenicke]
5324 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5325 length, instead of the encoding length to d2i_ASN1_OBJECT.
5328 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5330 *) [In 0.9.6g-engine release:]
5331 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5332 [Lynn Gazis <lgazis@rainbow.com>]
5334 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5336 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5337 and get fix the header length calculation.
5338 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5339 Alon Kantor <alonk@checkpoint.com> (and others),
5342 *) Use proper error handling instead of 'assertions' in buffer
5343 overflow checks added in 0.9.6e. This prevents DoS (the
5344 assertions could call abort()).
5345 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5347 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5349 *) Add various sanity checks to asn1_get_length() to reject
5350 the ASN1 length bytes if they exceed sizeof(long), will appear
5351 negative or the content length exceeds the length of the
5353 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5355 *) Fix cipher selection routines: ciphers without encryption had no flags
5356 for the cipher strength set and where therefore not handled correctly
5357 by the selection routines (PR #130).
5360 *) Fix EVP_dsa_sha macro.
5364 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5365 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5366 that was added in OpenSSL 0.9.6d.
5368 As the countermeasure turned out to be incompatible with some
5369 broken SSL implementations, the new option is part of SSL_OP_ALL.
5370 SSL_OP_ALL is usually employed when compatibility with weird SSL
5371 implementations is desired (e.g. '-bugs' option to 's_client' and
5372 's_server'), so the new option is automatically set in many
5376 *) Changes in security patch:
5378 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5379 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5380 Air Force Materiel Command, USAF, under agreement number
5383 *) Add various sanity checks to asn1_get_length() to reject
5384 the ASN1 length bytes if they exceed sizeof(long), will appear
5385 negative or the content length exceeds the length of the
5386 supplied buffer. (CVE-2002-0659)
5387 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5389 *) Assertions for various potential buffer overflows, not known to
5391 [Ben Laurie (CHATS)]
5393 *) Various temporary buffers to hold ASCII versions of integers were
5394 too small for 64 bit platforms. (CVE-2002-0655)
5395 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5397 *) Remote buffer overflow in SSL3 protocol - an attacker could
5398 supply an oversized session ID to a client. (CVE-2002-0656)
5399 [Ben Laurie (CHATS)]
5401 *) Remote buffer overflow in SSL2 protocol - an attacker could
5402 supply an oversized client master key. (CVE-2002-0656)
5403 [Ben Laurie (CHATS)]
5405 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5407 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5408 encoded as NULL) with id-dsa-with-sha1.
5409 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5411 *) Check various X509_...() return values in apps/req.c.
5412 [Nils Larsch <nla@trustcenter.de>]
5414 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5415 an end-of-file condition would erronously be flagged, when the CRLF
5416 was just at the end of a processed block. The bug was discovered when
5417 processing data through a buffering memory BIO handing the data to a
5418 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5419 <ptsekov@syntrex.com> and Nedelcho Stanev.
5422 *) Implement a countermeasure against a vulnerability recently found
5423 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5424 before application data chunks to avoid the use of known IVs
5425 with data potentially chosen by the attacker.
5428 *) Fix length checks in ssl3_get_client_hello().
5431 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5432 to prevent ssl3_read_internal() from incorrectly assuming that
5433 ssl3_read_bytes() found application data while handshake
5434 processing was enabled when in fact s->s3->in_read_app_data was
5435 merely automatically cleared during the initial handshake.
5436 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5438 *) Fix object definitions for Private and Enterprise: they were not
5439 recognized in their shortname (=lowercase) representation. Extend
5440 obj_dat.pl to issue an error when using undefined keywords instead
5441 of silently ignoring the problem (Svenning Sorensen
5442 <sss@sss.dnsalias.net>).
5445 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5446 generators, i.e. generators other than 2 and 5. (Previously, the
5447 code did not properly initialise the 'add' and 'rem' values to
5448 BN_generate_prime().)
5450 In the new general case, we do not insist that 'generator' is
5451 actually a primitive root: This requirement is rather pointless;
5452 a generator of the order-q subgroup is just as good, if not
5456 *) Map new X509 verification errors to alerts. Discovered and submitted by
5457 Tom Wu <tom@arcot.com>.
5460 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5461 returning non-zero before the data has been completely received
5462 when using non-blocking I/O.
5463 [Bodo Moeller; problem pointed out by John Hughes]
5465 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5466 [Ben Laurie, Lutz Jaenicke]
5468 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5469 Yoram Zahavi <YoramZ@gilian.com>).
5472 *) Add information about CygWin 1.3 and on, and preserve proper
5473 configuration for the versions before that.
5474 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5476 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5477 check whether we deal with a copy of a session and do not delete from
5478 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5479 <izhar@checkpoint.com>.
5482 *) Do not store session data into the internal session cache, if it
5483 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5484 flag is set). Proposed by Aslam <aslam@funk.com>.
5487 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5491 *) [In 0.9.6d-engine release:]
5492 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5493 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5495 *) Add the configuration target linux-s390x.
5496 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5498 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5499 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5500 variable as an indication that a ClientHello message has been
5501 received. As the flag value will be lost between multiple
5502 invocations of ssl3_accept when using non-blocking I/O, the
5503 function may not be aware that a handshake has actually taken
5504 place, thus preventing a new session from being added to the
5507 To avoid this problem, we now set s->new_session to 2 instead of
5508 using a local variable.
5509 [Lutz Jaenicke, Bodo Moeller]
5511 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5512 if the SSL_R_LENGTH_MISMATCH error is detected.
5513 [Geoff Thorpe, Bodo Moeller]
5515 *) New 'shared_ldflag' column in Configure platform table.
5518 *) Fix EVP_CIPHER_mode macro.
5519 ["Dan S. Camper" <dan@bti.net>]
5521 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5522 type, we must throw them away by setting rr->length to 0.
5523 [D P Chang <dpc@qualys.com>]
5525 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5527 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5528 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5529 worked incorrectly for those cases where range = 10..._2 and
5530 3*range is two bits longer than range.)
5533 *) Only add signing time to PKCS7 structures if it is not already
5537 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5538 OBJ_ld_ce should be OBJ_id_ce.
5539 Also some ip-pda OIDs in crypto/objects/objects.txt were
5540 incorrect (cf. RFC 3039).
5541 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5543 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5544 returns early because it has nothing to do.
5545 [Andy Schneider <andy.schneider@bjss.co.uk>]
5547 *) [In 0.9.6c-engine release:]
5548 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5549 [Andy Schneider <andy.schneider@bjss.co.uk>]
5551 *) [In 0.9.6c-engine release:]
5552 Add support for Cryptographic Appliance's keyserver technology.
5553 (Use engine 'keyclient')
5554 [Cryptographic Appliances and Geoff Thorpe]
5556 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5557 is called via tools/c89.sh because arguments have to be
5558 rearranged (all '-L' options must appear before the first object
5560 [Richard Shapiro <rshapiro@abinitio.com>]
5562 *) [In 0.9.6c-engine release:]
5563 Add support for Broadcom crypto accelerator cards, backported
5565 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5567 *) [In 0.9.6c-engine release:]
5568 Add support for SureWare crypto accelerator cards from
5569 Baltimore Technologies. (Use engine 'sureware')
5570 [Baltimore Technologies and Mark Cox]
5572 *) [In 0.9.6c-engine release:]
5573 Add support for crypto accelerator cards from Accelerated
5574 Encryption Processing, www.aep.ie. (Use engine 'aep')
5575 [AEP Inc. and Mark Cox]
5577 *) Add a configuration entry for gcc on UnixWare.
5578 [Gary Benson <gbenson@redhat.com>]
5580 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5581 messages are stored in a single piece (fixed-length part and
5582 variable-length part combined) and fix various bugs found on the way.
5585 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5586 instead. BIO_gethostbyname() does not know what timeouts are
5587 appropriate, so entries would stay in cache even when they have
5589 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5591 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5592 faced with a pathologically small ClientHello fragment that does
5593 not contain client_version: Instead of aborting with an error,
5594 simply choose the highest available protocol version (i.e.,
5595 TLS 1.0 unless it is disabled). In practice, ClientHello
5596 messages are never sent like this, but this change gives us
5597 strictly correct behaviour at least for TLS.
5600 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5601 never resets s->method to s->ctx->method when called from within
5602 one of the SSL handshake functions.
5603 [Bodo Moeller; problem pointed out by Niko Baric]
5605 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5606 (sent using the client's version number) if client_version is
5607 smaller than the protocol version in use. Also change
5608 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5609 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5610 the client will at least see that alert.
5613 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5617 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5618 client receives HelloRequest while in a handshake.
5619 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5621 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5622 should end in 'break', not 'goto end' which circuments various
5623 cleanups done in state SSL_ST_OK. But session related stuff
5624 must be disabled for SSL_ST_OK in the case that we just sent a
5627 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5628 before just sending a HelloRequest.
5629 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5631 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5632 reveal whether illegal block cipher padding was found or a MAC
5633 verification error occured. (Neither SSLerr() codes nor alerts
5634 are directly visible to potential attackers, but the information
5635 may leak via logfiles.)
5637 Similar changes are not required for the SSL 2.0 implementation
5638 because the number of padding bytes is sent in clear for SSL 2.0,
5639 and the extra bytes are just ignored. However ssl/s2_pkt.c
5640 failed to verify that the purported number of padding bytes is in
5644 *) Add OpenUNIX-8 support including shared libraries
5645 (Boyd Lynn Gerber <gerberb@zenez.com>).
5648 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5649 'wristwatch attack' using huge encoding parameters (cf.
5650 James H. Manger's CRYPTO 2001 paper). Note that the
5651 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5652 encoding parameters and hence was not vulnerable.
5655 *) BN_sqr() bug fix.
5656 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5658 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5659 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5660 followed by modular reduction.
5661 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5663 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5664 equivalent based on BN_pseudo_rand() instead of BN_rand().
5667 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5668 This function was broken, as the check for a new client hello message
5669 to handle SGC did not allow these large messages.
5670 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5673 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5676 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5677 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5680 *) Rework the configuration and shared library support for Tru64 Unix.
5681 The configuration part makes use of modern compiler features and
5682 still retains old compiler behavior for those that run older versions
5683 of the OS. The shared library support part includes a variant that
5684 uses the RPATH feature, and is available through the special
5685 configuration target "alpha-cc-rpath", which will never be selected
5687 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5689 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5690 with the same message size as in ssl3_get_certificate_request().
5691 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5692 messages might inadvertently be reject as too long.
5693 [Petr Lampa <lampa@fee.vutbr.cz>]
5695 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5698 *) Modified SSL library such that the verify_callback that has been set
5699 specificly for an SSL object with SSL_set_verify() is actually being
5700 used. Before the change, a verify_callback set with this function was
5701 ignored and the verify_callback() set in the SSL_CTX at the time of
5702 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5703 to allow the necessary settings.
5706 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5707 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5708 done automatically (in contradiction to the requirements of the C
5709 standard). This made problems when used from OpenSSH.
5712 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5713 dh->length and always used
5715 BN_rand_range(priv_key, dh->p).
5717 BN_rand_range() is not necessary for Diffie-Hellman, and this
5718 specific range makes Diffie-Hellman unnecessarily inefficient if
5719 dh->length (recommended exponent length) is much smaller than the
5720 length of dh->p. We could use BN_rand_range() if the order of
5721 the subgroup was stored in the DH structure, but we only have
5726 BN_rand(priv_key, l, ...)
5728 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5734 RSA_eay_public_encrypt
5735 RSA_eay_private_decrypt
5736 RSA_eay_private_encrypt (signing)
5737 RSA_eay_public_decrypt (signature verification)
5739 (default implementations for RSA_public_encrypt,
5740 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5741 always reject numbers >= n.
5744 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5745 to synchronize access to 'locking_thread'. This is necessary on
5746 systems where access to 'locking_thread' (an 'unsigned long'
5747 variable) is not atomic.
5750 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5751 *before* setting the 'crypto_lock_rand' flag. The previous code had
5752 a race condition if 0 is a valid thread ID.
5753 [Travis Vitek <vitek@roguewave.com>]
5755 *) Add support for shared libraries under Irix.
5756 [Albert Chin-A-Young <china@thewrittenword.com>]
5758 *) Add configuration option to build on Linux on both big-endian and
5760 [Ralf Baechle <ralf@uni-koblenz.de>]
5762 *) Add the possibility to create shared libraries on HP-UX.
5765 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5767 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5768 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5769 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5770 PRNG state recovery was possible based on the output of
5771 one PRNG request appropriately sized to gain knowledge on
5772 'md' followed by enough consecutive 1-byte PRNG requests
5773 to traverse all of 'state'.
5775 1. When updating 'md_local' (the current thread's copy of 'md')
5776 during PRNG output generation, hash all of the previous
5777 'md_local' value, not just the half used for PRNG output.
5779 2. Make the number of bytes from 'state' included into the hash
5780 independent from the number of PRNG bytes requested.
5782 The first measure alone would be sufficient to avoid
5783 Markku-Juhani's attack. (Actually it had never occurred
5784 to me that the half of 'md_local' used for chaining was the
5785 half from which PRNG output bytes were taken -- I had always
5786 assumed that the secret half would be used.) The second
5787 measure makes sure that additional data from 'state' is never
5788 mixed into 'md_local' in small portions; this heuristically
5789 further strengthens the PRNG.
5792 *) Fix crypto/bn/asm/mips3.s.
5795 *) When only the key is given to "enc", the IV is undefined. Print out
5796 an error message in this case.
5799 *) Handle special case when X509_NAME is empty in X509 printing routines.
5802 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5803 positive and less than q.
5806 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5807 used: it isn't thread safe and the add_lock_callback should handle
5809 [Paul Rose <Paul.Rose@bridge.com>]
5811 *) Verify that incoming data obeys the block size in
5812 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5816 [Ulf Möller, Bodo Möller]
5818 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5819 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5820 when fixing the server behaviour for backwards-compatible 'client
5821 hello' messages. (Note that the attack is impractical against
5822 SSL 3.0 and TLS 1.0 anyway because length and version checking
5823 means that the probability of guessing a valid ciphertext is
5824 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5827 Before 0.9.5, the countermeasure (hide the error by generating a
5828 random 'decryption result') did not work properly because
5829 ERR_clear_error() was missing, meaning that SSL_get_error() would
5830 detect the supposedly ignored error.
5832 Both problems are now fixed.
5835 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5836 (previously it was 1024).
5839 *) Fix for compatibility mode trust settings: ignore trust settings
5840 unless some valid trust or reject settings are present.
5843 *) Fix for blowfish EVP: its a variable length cipher.
5846 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5847 parameters in DSA public key structures and return an error in the
5848 DSA routines if parameters are absent.
5851 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5852 in the current directory if neither $RANDFILE nor $HOME was set.
5853 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5854 caused some confusion to Windows users who haven't defined $HOME.
5855 Thus RAND_file_name() is changed again: e_os.h can define a
5856 DEFAULT_HOME, which will be used if $HOME is not set.
5857 For Windows, we use "C:"; on other platforms, we still require
5858 environment variables.
5860 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5861 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5862 having multiple threads call RAND_poll() concurrently.
5865 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5866 combination of a flag and a thread ID variable.
5867 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5868 flag), *other* threads can enter ssleay_add_bytes without obeying
5869 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5870 that they do not hold after the first thread unsets add_do_not_lock).
5873 *) Change bctest again: '-x' expressions are not available in all
5877 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5879 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5880 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5882 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5883 the default extension for executables, if any. Also, make the perl
5884 scripts that use symlink() to test if it really exists and use "cp"
5885 if it doesn't. All this made OpenSSL compilable and installable in
5889 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5890 If SEQUENCE is length is indefinite just set c->slen to the total
5891 amount of data available.
5892 [Steve Henson, reported by shige@FreeBSD.org]
5893 [This change does not apply to 0.9.7.]
5895 *) Change bctest to avoid here-documents inside command substitution
5896 (workaround for FreeBSD /bin/sh bug).
5897 For compatibility with Ultrix, avoid shell functions (introduced
5898 in the bctest version that searches along $PATH).
5901 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5902 with des_encrypt() defined on some operating systems, like Solaris
5906 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5907 On the Importance of Eliminating Errors in Cryptographic
5908 Computations, J. Cryptology 14 (2001) 2, 101-119,
5909 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5912 *) MIPS assembler BIGNUM division bug fix.
5915 *) Disabled incorrect Alpha assembler code.
5918 *) Fix PKCS#7 decode routines so they correctly update the length
5919 after reading an EOC for the EXPLICIT tag.
5921 [This change does not apply to 0.9.7.]
5923 *) Fix bug in PKCS#12 key generation routines. This was triggered
5924 if a 3DES key was generated with a 0 initial byte. Include
5925 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5926 (but broken) behaviour.
5929 *) Enhance bctest to search for a working bc along $PATH and print
5931 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5933 *) Fix memory leaks in err.c: free err_data string if necessary;
5934 don't write to the wrong index in ERR_set_error_data.
5937 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5941 *) Replace rdtsc with _emit statements for VC++ version 5.
5942 [Jeremy Cooper <jeremy@baymoo.org>]
5944 *) Make it possible to reuse SSLv2 sessions.
5947 *) In copy_email() check for >= 0 as a return value for
5948 X509_NAME_get_index_by_NID() since 0 is a valid index.
5949 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5951 *) Avoid coredump with unsupported or invalid public keys by checking if
5952 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5953 PKCS7_verify() fails with non detached data.
5956 *) Don't use getenv in library functions when run as setuid/setgid.
5957 New function OPENSSL_issetugid().
5960 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5961 due to incorrect handling of multi-threading:
5963 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5965 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5967 3. Count how many times MemCheck_off() has been called so that
5968 nested use can be treated correctly. This also avoids
5969 inband-signalling in the previous code (which relied on the
5970 assumption that thread ID 0 is impossible).
5973 *) Add "-rand" option also to s_client and s_server.
5976 *) Fix CPU detection on Irix 6.x.
5977 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5978 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5980 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5983 [This change does not apply to 0.9.7.]
5985 *) Use the cached encoding of an X509_NAME structure rather than
5986 copying it. This is apparently the reason for the libsafe "errors"
5987 but the code is actually correct.
5990 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5991 Bleichenbacher's DSA attack.
5992 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5993 to be set and top=0 forces the highest bit to be set; top=-1 is new
5994 and leaves the highest bit random.
5995 [Ulf Moeller, Bodo Moeller]
5997 *) In the NCONF_...-based implementations for CONF_... queries
5998 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5999 a temporary CONF structure with the data component set to NULL
6000 (which gives segmentation faults in lh_retrieve).
6001 Instead, use NULL for the CONF pointer in CONF_get_string and
6002 CONF_get_number (which may use environment variables) and directly
6003 return NULL from CONF_get_section.
6006 *) Fix potential buffer overrun for EBCDIC.
6009 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6010 keyUsage if basicConstraints absent for a CA.
6013 *) Make SMIME_write_PKCS7() write mail header values with a format that
6014 is more generally accepted (no spaces before the semicolon), since
6015 some programs can't parse those values properly otherwise. Also make
6016 sure BIO's that break lines after each write do not create invalid
6020 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6021 macros previously used would not encode an empty SEQUENCE OF
6022 and break the signature.
6024 [This change does not apply to 0.9.7.]
6026 *) Zero the premaster secret after deriving the master secret in
6030 *) Add some EVP_add_digest_alias registrations (as found in
6031 OpenSSL_add_all_digests()) to SSL_library_init()
6032 aka OpenSSL_add_ssl_algorithms(). This provides improved
6033 compatibility with peers using X.509 certificates
6034 with unconventional AlgorithmIdentifier OIDs.
6037 *) Fix for Irix with NO_ASM.
6038 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6040 *) ./config script fixes.
6041 [Ulf Moeller, Richard Levitte]
6043 *) Fix 'openssl passwd -1'.
6046 *) Change PKCS12_key_gen_asc() so it can cope with non null
6047 terminated strings whose length is passed in the passlen
6048 parameter, for example from PEM callbacks. This was done
6049 by adding an extra length parameter to asc2uni().
6050 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6052 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6053 call failed, free the DSA structure.
6056 *) Fix to uni2asc() to cope with zero length Unicode strings.
6057 These are present in some PKCS#12 files.
6060 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6061 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6062 when writing a 32767 byte record.
6063 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6065 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6066 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6068 (RSA objects have a reference count access to which is protected
6069 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6070 so they are meant to be shared between threads.)
6071 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6072 "Reddie, Steven" <Steven.Reddie@ca.com>]
6074 *) Fix a deadlock in CRYPTO_mem_leaks().
6077 *) Use better test patterns in bntest.
6080 *) rand_win.c fix for Borland C.
6083 *) BN_rshift bugfix for n == 0.
6086 *) Add a 'bctest' script that checks for some known 'bc' bugs
6087 so that 'make test' does not abort just because 'bc' is broken.
6090 *) Store verify_result within SSL_SESSION also for client side to
6091 avoid potential security hole. (Re-used sessions on the client side
6092 always resulted in verify_result==X509_V_OK, not using the original
6093 result of the server certificate verification.)
6096 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6097 SSL3_RT_APPLICATION_DATA, return 0.
6098 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6102 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6103 releases, have been re-implemented by renaming the previous
6104 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6105 and ssl3_read_internal, respectively, and adding 'peek' parameters
6106 to them. The new ssl[23]_{read,peek} functions are calls to
6107 ssl[23]_read_internal with the 'peek' flag set appropriately.
6108 A 'peek' parameter has also been added to ssl3_read_bytes, which
6109 does the actual work for ssl3_read_internal.
6112 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6113 the method-specific "init()" handler. Also clean up ex_data after
6114 calling the method-specific "finish()" handler. Previously, this was
6115 happening the other way round.
6118 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6119 The previous value, 12, was not always sufficient for BN_mod_exp().
6122 *) Make sure that shared libraries get the internal name engine with
6123 the full version number and not just 0. This should mark the
6124 shared libraries as not backward compatible. Of course, this should
6125 be changed again when we can guarantee backward binary compatibility.
6128 *) Fix typo in get_cert_by_subject() in by_dir.c
6129 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6131 *) Rework the system to generate shared libraries:
6133 - Make note of the expected extension for the shared libraries and
6134 if there is a need for symbolic links from for example libcrypto.so.0
6135 to libcrypto.so.0.9.7. There is extended info in Configure for
6138 - Make as few rebuilds of the shared libraries as possible.
6140 - Still avoid linking the OpenSSL programs with the shared libraries.
6142 - When installing, install the shared libraries separately from the
6146 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6148 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6149 and not in SSL_clear because the latter is also used by the
6150 accept/connect functions; previously, the settings made by
6151 SSL_set_read_ahead would be lost during the handshake.
6152 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6154 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6155 Previously, it would create entries for disableed algorithms no
6159 *) Added several new manual pages for SSL_* function.
6162 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6164 *) In ssl23_get_client_hello, generate an error message when faced
6165 with an initial SSL 3.0/TLS record that is too small to contain the
6166 first two bytes of the ClientHello message, i.e. client_version.
6167 (Note that this is a pathologic case that probably has never happened
6168 in real life.) The previous approach was to use the version number
6169 from the record header as a substitute; but our protocol choice
6170 should not depend on that one because it is not authenticated
6171 by the Finished messages.
6174 *) More robust randomness gathering functions for Windows.
6175 [Jeffrey Altman <jaltman@columbia.edu>]
6177 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6178 not set then we don't setup the error code for issuer check errors
6179 to avoid possibly overwriting other errors which the callback does
6180 handle. If an application does set the flag then we assume it knows
6181 what it is doing and can handle the new informational codes
6185 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6186 a general "ANY" type, as such it should be able to decode anything
6187 including tagged types. However it didn't check the class so it would
6188 wrongly interpret tagged types in the same way as their universal
6189 counterpart and unknown types were just rejected. Changed so that the
6190 tagged and unknown types are handled in the same way as a SEQUENCE:
6191 that is the encoding is stored intact. There is also a new type
6192 "V_ASN1_OTHER" which is used when the class is not universal, in this
6193 case we have no idea what the actual type is so we just lump them all
6197 *) On VMS, stdout may very well lead to a file that is written to
6198 in a record-oriented fashion. That means that every write() will
6199 write a separate record, which will be read separately by the
6200 programs trying to read from it. This can be very confusing.
6202 The solution is to put a BIO filter in the way that will buffer
6203 text until a linefeed is reached, and then write everything a
6204 line at a time, so every record written will be an actual line,
6205 not chunks of lines and not (usually doesn't happen, but I've
6206 seen it once) several lines in one record. BIO_f_linebuffer() is
6209 Currently, it's a VMS-only method, because that's where it has
6210 been tested well enough.
6213 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6214 it can return incorrect results.
6215 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6216 but it was in 0.9.6-beta[12].)
6219 *) Disable the check for content being present when verifying detached
6220 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6221 include zero length content when signing messages.
6224 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6225 BIO_ctrl (for BIO pairs).
6228 *) Add DSO method for VMS.
6231 *) Bug fix: Montgomery multiplication could produce results with the
6235 *) Add RPM specification openssl.spec and modify it to build three
6236 packages. The default package contains applications, application
6237 documentation and run-time libraries. The devel package contains
6238 include files, static libraries and function documentation. The
6239 doc package contains the contents of the doc directory. The original
6240 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6243 *) Add a large number of documentation files for many SSL routines.
6244 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6246 *) Add a configuration entry for Sony News 4.
6247 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6249 *) Don't set the two most significant bits to one when generating a
6250 random number < q in the DSA library.
6253 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6254 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6255 the underlying transport is blocking) if a handshake took place.
6256 (The default behaviour is needed by applications such as s_client
6257 and s_server that use select() to determine when to use SSL_read;
6258 but for applications that know in advance when to expect data, it
6259 just makes things more complicated.)
6262 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6266 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6267 work better on such systems.
6268 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6270 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6271 Update PKCS12_parse() so it copies the friendlyName and the
6272 keyid to the certificates aux info.
6275 *) Fix bug in PKCS7_verify() which caused an infinite loop
6276 if there was more than one signature.
6277 [Sven Uszpelkat <su@celocom.de>]
6279 *) Major change in util/mkdef.pl to include extra information
6280 about each symbol, as well as presentig variables as well
6281 as functions. This change means that there's n more need
6282 to rebuild the .num files when some algorithms are excluded.
6285 *) Allow the verify time to be set by an application,
6286 rather than always using the current time.
6289 *) Phase 2 verify code reorganisation. The certificate
6290 verify code now looks up an issuer certificate by a
6291 number of criteria: subject name, authority key id
6292 and key usage. It also verifies self signed certificates
6293 by the same criteria. The main comparison function is
6294 X509_check_issued() which performs these checks.
6296 Lot of changes were necessary in order to support this
6297 without completely rewriting the lookup code.
6299 Authority and subject key identifier are now cached.
6301 The LHASH 'certs' is X509_STORE has now been replaced
6302 by a STACK_OF(X509_OBJECT). This is mainly because an
6303 LHASH can't store or retrieve multiple objects with
6304 the same hash value.
6306 As a result various functions (which were all internal
6307 use only) have changed to handle the new X509_STORE
6308 structure. This will break anything that messed round
6309 with X509_STORE internally.
6311 The functions X509_STORE_add_cert() now checks for an
6312 exact match, rather than just subject name.
6314 The X509_STORE API doesn't directly support the retrieval
6315 of multiple certificates matching a given criteria, however
6316 this can be worked round by performing a lookup first
6317 (which will fill the cache with candidate certificates)
6318 and then examining the cache for matches. This is probably
6319 the best we can do without throwing out X509_LOOKUP
6320 entirely (maybe later...).
6322 The X509_VERIFY_CTX structure has been enhanced considerably.
6324 All certificate lookup operations now go via a get_issuer()
6325 callback. Although this currently uses an X509_STORE it
6326 can be replaced by custom lookups. This is a simple way
6327 to bypass the X509_STORE hackery necessary to make this
6328 work and makes it possible to use more efficient techniques
6329 in future. A very simple version which uses a simple
6330 STACK for its trusted certificate store is also provided
6331 using X509_STORE_CTX_trusted_stack().
6333 The verify_cb() and verify() callbacks now have equivalents
6334 in the X509_STORE_CTX structure.
6336 X509_STORE_CTX also has a 'flags' field which can be used
6337 to customise the verify behaviour.
6340 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6341 excludes S/MIME capabilities.
6344 *) When a certificate request is read in keep a copy of the
6345 original encoding of the signed data and use it when outputing
6346 again. Signatures then use the original encoding rather than
6347 a decoded, encoded version which may cause problems if the
6348 request is improperly encoded.
6351 *) For consistency with other BIO_puts implementations, call
6352 buffer_write(b, ...) directly in buffer_puts instead of calling
6355 In BIO_puts, increment b->num_write as in BIO_write.
6356 [Peter.Sylvester@EdelWeb.fr]
6358 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6359 BN_zero, we may not return a BIGNUM with an array consisting of
6363 *) Avoid calling abort() from within the library when problems are
6364 detected, except if preprocessor symbols have been defined
6365 (such as REF_CHECK, BN_DEBUG etc.).
6368 *) New openssl application 'rsautl'. This utility can be
6369 used for low level RSA operations. DER public key
6370 BIO/fp routines also added.
6373 *) New Configure entry and patches for compiling on QNX 4.
6374 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6376 *) A demo state-machine implementation was sponsored by
6377 Nuron (http://www.nuron.com/) and is now available in
6378 demos/state_machine.
6381 *) New options added to the 'dgst' utility for signature
6382 generation and verification.
6385 *) Unrecognized PKCS#7 content types are now handled via a
6386 catch all ASN1_TYPE structure. This allows unsupported
6387 types to be stored as a "blob" and an application can
6388 encode and decode it manually.
6391 *) Fix various signed/unsigned issues to make a_strex.c
6393 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6395 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6396 length if passed a buffer. ASN1_INTEGER_to_BN failed
6397 if passed a NULL BN and its argument was negative.
6398 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6400 *) Modification to PKCS#7 encoding routines to output definite
6401 length encoding. Since currently the whole structures are in
6402 memory there's not real point in using indefinite length
6403 constructed encoding. However if OpenSSL is compiled with
6404 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6407 *) Added BIO_vprintf() and BIO_vsnprintf().
6410 *) Added more prefixes to parse for in the the strings written
6411 through a logging bio, to cover all the levels that are available
6412 through syslog. The prefixes are now:
6414 PANIC, EMERG, EMR => LOG_EMERG
6415 ALERT, ALR => LOG_ALERT
6416 CRIT, CRI => LOG_CRIT
6417 ERROR, ERR => LOG_ERR
6418 WARNING, WARN, WAR => LOG_WARNING
6419 NOTICE, NOTE, NOT => LOG_NOTICE
6420 INFO, INF => LOG_INFO
6421 DEBUG, DBG => LOG_DEBUG
6423 and as before, if none of those prefixes are present at the
6424 beginning of the string, LOG_ERR is chosen.
6426 On Win32, the LOG_* levels are mapped according to this:
6428 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6429 LOG_WARNING => EVENTLOG_WARNING_TYPE
6430 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6434 *) Made it possible to reconfigure with just the configuration
6435 argument "reconf" or "reconfigure". The command line arguments
6436 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6437 and are retrieved from there when reconfiguring.
6441 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6443 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6446 *) The obj_dat.pl script was messing up the sorting of object
6447 names. The reason was that it compared the quoted version
6448 of strings as a result "OCSP" > "OCSP Signing" because
6449 " > SPACE. Changed script to store unquoted versions of
6450 names and add quotes on output. It was also omitting some
6451 names from the lookup table if they were given a default
6452 value (that is if SN is missing it is given the same
6453 value as LN and vice versa), these are now added on the
6454 grounds that if an object has a name we should be able to
6455 look it up. Finally added warning output when duplicate
6456 short or long names are found.
6459 *) Changes needed for Tandem NSK.
6460 [Scott Uroff <scott@xypro.com>]
6462 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6463 RSA_padding_check_SSLv23(), special padding was never detected
6464 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6465 version rollback attacks was not effective.
6467 In s23_clnt.c, don't use special rollback-attack detection padding
6468 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6469 client; similarly, in s23_srvr.c, don't do the rollback check if
6470 SSL 2.0 is the only protocol enabled in the server.
6473 *) Make it possible to get hexdumps of unprintable data with 'openssl
6474 asn1parse'. By implication, the functions ASN1_parse_dump() and
6475 BIO_dump_indent() are added.
6478 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6479 these print out strings and name structures based on various
6480 flags including RFC2253 support and proper handling of
6481 multibyte characters. Added options to the 'x509' utility
6482 to allow the various flags to be set.
6485 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6486 Also change the functions X509_cmp_current_time() and
6487 X509_gmtime_adj() work with an ASN1_TIME structure,
6488 this will enable certificates using GeneralizedTime in validity
6489 dates to be checked.
6492 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6493 negative public key encodings) on by default,
6494 NO_NEG_PUBKEY_BUG can be set to disable it.
6497 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6498 content octets. An i2c_ASN1_OBJECT is unnecessary because
6499 the encoding can be trivially obtained from the structure.
6502 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6503 not read locks (CRYPTO_r_[un]lock).
6506 *) A first attempt at creating official support for shared
6507 libraries through configuration. I've kept it so the
6508 default is static libraries only, and the OpenSSL programs
6509 are always statically linked for now, but there are
6510 preparations for dynamic linking in place.
6511 This has been tested on Linux and Tru64.
6514 *) Randomness polling function for Win9x, as described in:
6515 Peter Gutmann, Software Generation of Practically Strong
6519 *) Fix so PRNG is seeded in req if using an already existing
6523 *) New options to smime application. -inform and -outform
6524 allow alternative formats for the S/MIME message including
6525 PEM and DER. The -content option allows the content to be
6526 specified separately. This should allow things like Netscape
6527 form signing output easier to verify.
6530 *) Fix the ASN1 encoding of tags using the 'long form'.
6533 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6534 STRING types. These convert content octets to and from the
6535 underlying type. The actual tag and length octets are
6536 already assumed to have been read in and checked. These
6537 are needed because all other string types have virtually
6538 identical handling apart from the tag. By having versions
6539 of the ASN1 functions that just operate on content octets
6540 IMPLICIT tagging can be handled properly. It also allows
6541 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6542 and ASN1_INTEGER are identical apart from the tag.
6545 *) Change the handling of OID objects as follows:
6547 - New object identifiers are inserted in objects.txt, following
6548 the syntax given in objects.README.
6549 - objects.pl is used to process obj_mac.num and create a new
6551 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6554 This is currently kind of a hack, and the perl code in objects.pl
6555 isn't very elegant, but it works as I intended. The simplest way
6556 to check that it worked correctly is to look in obj_dat.h and
6557 check the array nid_objs and make sure the objects haven't moved
6558 around (this is important!). Additions are OK, as well as
6559 consistent name changes.
6562 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6565 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6566 The given file adds to whatever has already been seeded into the
6567 random pool through the RANDFILE configuration file option or
6568 environment variable, or the default random state file.
6571 *) mkstack.pl now sorts each macro group into lexical order.
6572 Previously the output order depended on the order the files
6573 appeared in the directory, resulting in needless rewriting
6577 *) Patches to make OpenSSL compile under Win32 again. Mostly
6578 work arounds for the VC++ problem that it treats func() as
6579 func(void). Also stripped out the parts of mkdef.pl that
6580 added extra typesafe functions: these no longer exist.
6583 *) Reorganisation of the stack code. The macros are now all
6584 collected in safestack.h . Each macro is defined in terms of
6585 a "stack macro" of the form SKM_<name>(type, a, b). The
6586 DEBUG_SAFESTACK is now handled in terms of function casts,
6587 this has the advantage of retaining type safety without the
6588 use of additional functions. If DEBUG_SAFESTACK is not defined
6589 then the non typesafe macros are used instead. Also modified the
6590 mkstack.pl script to handle the new form. Needs testing to see
6591 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6592 the default if no major problems. Similar behaviour for ASN1_SET_OF
6593 and PKCS12_STACK_OF.
6596 *) When some versions of IIS use the 'NET' form of private key the
6597 key derivation algorithm is different. Normally MD5(password) is
6598 used as a 128 bit RC4 key. In the modified case
6599 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6600 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6601 as the old Netscape_RSA functions except they have an additional
6602 'sgckey' parameter which uses the modified algorithm. Also added
6603 an -sgckey command line option to the rsa utility. Thanks to
6604 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6605 algorithm to openssl-dev.
6608 *) The evp_local.h macros were using 'c.##kname' which resulted in
6609 invalid expansion on some systems (SCO 5.0.5 for example).
6610 Corrected to 'c.kname'.
6611 [Phillip Porch <root@theporch.com>]
6613 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6614 a STACK of email addresses from a certificate or request, these look
6615 in the subject name and the subject alternative name extensions and
6616 omit any duplicate addresses.
6619 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6620 This makes DSA verification about 2 % faster.
6623 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6624 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6625 plus overhead for 1024 bit moduli).
6626 This makes exponentiations about 0.5 % faster for 1024 bit
6627 exponents (as measured by "openssl speed rsa2048").
6630 *) Rename memory handling macros to avoid conflicts with other
6632 Malloc => OPENSSL_malloc
6633 Malloc_locked => OPENSSL_malloc_locked
6634 Realloc => OPENSSL_realloc
6635 Free => OPENSSL_free
6638 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6639 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6642 *) CygWin32 support.
6643 [John Jarvie <jjarvie@newsguy.com>]
6645 *) The type-safe stack code has been rejigged. It is now only compiled
6646 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6647 by default all type-specific stack functions are "#define"d back to
6648 standard stack functions. This results in more streamlined output
6649 but retains the type-safety checking possibilities of the original
6653 *) The STACK code has been cleaned up, and certain type declarations
6654 that didn't make a lot of sense have been brought in line. This has
6655 also involved a cleanup of sorts in safestack.h to more correctly
6656 map type-safe stack functions onto their plain stack counterparts.
6657 This work has also resulted in a variety of "const"ifications of
6658 lots of the code, especially "_cmp" operations which should normally
6659 be prototyped with "const" parameters anyway.
6662 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6663 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6664 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6665 where all of 'md' is used each time the PRNG is used, but 'state'
6666 is used only indexed by a cyclic counter. As entropy may not be
6667 well distributed from the beginning, 'md' is important as a
6668 chaining variable. However, the output function chains only half
6669 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6670 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6671 in all of 'state' being rewritten, with the new values depending
6672 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6675 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6676 the handshake is continued after ssl_verify_cert_chain();
6677 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6678 can lead to 'unexplainable' connection aborts later.
6679 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6681 *) Major EVP API cipher revision.
6682 Add hooks for extra EVP features. This allows various cipher
6683 parameters to be set in the EVP interface. Support added for variable
6684 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6685 setting of RC2 and RC5 parameters.
6687 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6690 Remove lots of duplicated code from the EVP library. For example *every*
6691 cipher init() function handles the 'iv' in the same way according to the
6692 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6693 for CFB and OFB modes they zero ctx->num.
6695 New functionality allows removal of S/MIME code RC2 hack.
6697 Most of the routines have the same form and so can be declared in terms
6700 By shifting this to the top level EVP_CipherInit() it can be removed from
6701 all individual ciphers. If the cipher wants to handle IVs or keys
6702 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6705 Change lots of functions like EVP_EncryptUpdate() to now return a
6706 value: although software versions of the algorithms cannot fail
6707 any installed hardware versions can.
6710 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6711 this option is set, tolerate broken clients that send the negotiated
6712 protocol version number instead of the requested protocol version
6716 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6717 i.e. non-zero for export ciphersuites, zero otherwise.
6718 Previous versions had this flag inverted, inconsistent with
6719 rsa_tmp_cb (..._TMP_RSA_CB).
6720 [Bodo Moeller; problem reported by Amit Chopra]
6722 *) Add missing DSA library text string. Work around for some IIS
6723 key files with invalid SEQUENCE encoding.
6726 *) Add a document (doc/standards.txt) that list all kinds of standards
6727 and so on that are implemented in OpenSSL.
6730 *) Enhance c_rehash script. Old version would mishandle certificates
6731 with the same subject name hash and wouldn't handle CRLs at all.
6732 Added -fingerprint option to crl utility, to support new c_rehash
6736 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6739 *) Fix for SSL server purpose checking. Server checking was
6740 rejecting certificates which had extended key usage present
6741 but no ssl client purpose.
6742 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6744 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6745 is a little unclear about how a blank password is handled.
6746 Since the password in encoded as a BMPString with terminating
6747 double NULL a zero length password would end up as just the
6748 double NULL. However no password at all is different and is
6749 handled differently in the PKCS#12 key generation code. NS
6750 treats a blank password as zero length. MSIE treats it as no
6751 password on export: but it will try both on import. We now do
6752 the same: PKCS12_parse() tries zero length and no password if
6753 the password is set to "" or NULL (NULL is now a valid password:
6754 it wasn't before) as does the pkcs12 application.
6757 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6758 perror when PEM_read_bio_X509_REQ fails, the error message must
6759 be obtained from the error queue.
6762 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6763 it in ERR_remove_state if appropriate, and change ERR_get_state
6764 accordingly to avoid race conditions (this is necessary because
6765 thread_hash is no longer constant once set).
6768 *) Bugfix for linux-elf makefile.one.
6771 *) RSA_get_default_method() will now cause a default
6772 RSA_METHOD to be chosen if one doesn't exist already.
6773 Previously this was only set during a call to RSA_new()
6774 or RSA_new_method(NULL) meaning it was possible for
6775 RSA_get_default_method() to return NULL.
6778 *) Added native name translation to the existing DSO code
6779 that will convert (if the flag to do so is set) filenames
6780 that are sufficiently small and have no path information
6781 into a canonical native form. Eg. "blah" converted to
6782 "libblah.so" or "blah.dll" etc.
6785 *) New function ERR_error_string_n(e, buf, len) which is like
6786 ERR_error_string(e, buf), but writes at most 'len' bytes
6787 including the 0 terminator. For ERR_error_string_n, 'buf'
6789 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6791 *) CONF library reworked to become more general. A new CONF
6792 configuration file reader "class" is implemented as well as a
6793 new functions (NCONF_*, for "New CONF") to handle it. The now
6794 old CONF_* functions are still there, but are reimplemented to
6795 work in terms of the new functions. Also, a set of functions
6796 to handle the internal storage of the configuration data is
6797 provided to make it easier to write new configuration file
6798 reader "classes" (I can definitely see something reading a
6799 configuration file in XML format, for example), called _CONF_*,
6800 or "the configuration storage API"...
6802 The new configuration file reading functions are:
6804 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6805 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6807 NCONF_default, NCONF_WIN32
6809 NCONF_dump_fp, NCONF_dump_bio
6811 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6812 NCONF_new creates a new CONF object. This works in the same way
6813 as other interfaces in OpenSSL, like the BIO interface.
6814 NCONF_dump_* dump the internal storage of the configuration file,
6815 which is useful for debugging. All other functions take the same
6816 arguments as the old CONF_* functions wth the exception of the
6817 first that must be a `CONF *' instead of a `LHASH *'.
6819 To make it easer to use the new classes with the old CONF_* functions,
6820 the function CONF_set_default_method is provided.
6823 *) Add '-tls1' option to 'openssl ciphers', which was already
6824 mentioned in the documentation but had not been implemented.
6825 (This option is not yet really useful because even the additional
6826 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6829 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6830 OpenSSL-based applications) load shared libraries and bind to
6831 them in a portable way.
6832 [Geoff Thorpe, with contributions from Richard Levitte]
6834 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6836 *) Make sure _lrotl and _lrotr are only used with MSVC.
6838 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6839 (the default implementation of RAND_status).
6841 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6842 to '-clrext' (= clear extensions), as intended and documented.
6843 [Bodo Moeller; inconsistency pointed out by Michael Attili
6846 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6847 was larger than the MD block size.
6848 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6850 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6851 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6852 using the passed key: if the passed key was a private key the result
6853 of X509_print(), for example, would be to print out all the private key
6857 *) des_quad_cksum() byte order bug fix.
6858 [Ulf Möller, using the problem description in krb4-0.9.7, where
6859 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6861 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6863 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6865 *) For easily testing in shell scripts whether some command
6866 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6867 returns with exit code 0 iff no command of the given name is available.
6868 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6869 the output goes to stdout and nothing is printed to stderr.
6870 Additional arguments are always ignored.
6872 Since for each cipher there is a command of the same name,
6873 the 'no-cipher' compilation switches can be tested this way.
6875 ('openssl no-XXX' is not able to detect pseudo-commands such
6876 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6879 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6882 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6883 is set; it will be thrown away anyway because each handshake creates
6885 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6886 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6887 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6888 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6891 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6892 'Q' and 'R' lose their special meanings (quit/renegotiate).
6893 This is part of what -quiet does; unlike -quiet, -ign_eof
6894 does not suppress any output.
6897 *) Add compatibility options to the purpose and trust code. The
6898 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6899 accepts a certificate or CA, this was the previous behaviour,
6900 with all the associated security issues.
6902 X509_TRUST_COMPAT is the old trust behaviour: only and
6903 automatically trust self signed roots in certificate store. A
6904 new trust setting X509_TRUST_DEFAULT is used to specify that
6905 a purpose has no associated trust setting and it should instead
6906 use the value in the default purpose.
6909 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6910 and fix a memory leak.
6913 *) In util/mkerr.pl (which implements 'make errors'), preserve
6914 reason strings from the previous version of the .c file, as
6915 the default to have only downcase letters (and digits) in
6916 automatically generated reasons codes is not always appropriate.
6919 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6920 using strerror. Previously, ERR_reason_error_string() returned
6921 library names as reason strings for SYSerr; but SYSerr is a special
6922 case where small numbers are errno values, not library numbers.
6925 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6926 converts DSA parameters into DH parameters. (When creating parameters,
6927 DSA_generate_parameters is used.)
6930 *) Include 'length' (recommended exponent length) in C code generated
6931 by 'openssl dhparam -C'.
6934 *) The second argument to set_label in perlasm was already being used
6935 so couldn't be used as a "file scope" flag. Moved to third argument
6939 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6940 instead of RAND_bytes for encryption IVs and salts.
6943 *) Include RAND_status() into RAND_METHOD instead of implementing
6944 it only for md_rand.c Otherwise replacing the PRNG by calling
6945 RAND_set_rand_method would be impossible.
6948 *) Don't let DSA_generate_key() enter an infinite loop if the random
6949 number generation fails.
6952 *) New 'rand' application for creating pseudo-random output.
6955 *) Added configuration support for Linux/IA64
6956 [Rolf Haberrecker <rolf@suse.de>]
6958 *) Assembler module support for Mingw32.
6961 *) Shared library support for HPUX (in shlib/).
6962 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6964 *) Shared library support for Solaris gcc.
6965 [Lutz Behnke <behnke@trustcenter.de>]
6967 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6969 *) PKCS7_encrypt() was adding text MIME headers twice because they
6970 were added manually and by SMIME_crlf_copy().
6973 *) In bntest.c don't call BN_rand with zero bits argument.
6974 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6976 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6977 case was implemented. This caused BN_div_recp() to fail occasionally.
6980 *) Add an optional second argument to the set_label() in the perl
6981 assembly language builder. If this argument exists and is set
6982 to 1 it signals that the assembler should use a symbol whose
6983 scope is the entire file, not just the current function. This
6984 is needed with MASM which uses the format label:: for this scope.
6985 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6987 *) Change the ASN1 types so they are typedefs by default. Before
6988 almost all types were #define'd to ASN1_STRING which was causing
6989 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6993 *) Change names of new functions to the new get1/get0 naming
6994 convention: After 'get1', the caller owns a reference count
6995 and has to call ..._free; 'get0' returns a pointer to some
6996 data structure without incrementing reference counters.
6997 (Some of the existing 'get' functions increment a reference
6998 counter, some don't.)
6999 Similarly, 'set1' and 'add1' functions increase reference
7000 counters or duplicate objects.
7003 *) Allow for the possibility of temp RSA key generation failure:
7004 the code used to assume it always worked and crashed on failure.
7007 *) Fix potential buffer overrun problem in BIO_printf().
7008 [Ulf Möller, using public domain code by Patrick Powell; problem
7009 pointed out by David Sacerdote <das33@cornell.edu>]
7011 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7012 RAND_egd() and RAND_status(). In the command line application,
7013 the EGD socket can be specified like a seed file using RANDFILE
7017 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7018 Some CAs (e.g. Verisign) distribute certificates in this form.
7021 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7022 list to exclude them. This means that no special compilation option
7023 is needed to use anonymous DH: it just needs to be included in the
7027 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7028 EVP_MD_type. The old functionality is available in a new macro called
7029 EVP_MD_md(). Change code that uses it and update docs.
7032 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7033 where the 'void *' argument is replaced by a function pointer argument.
7034 Previously 'void *' was abused to point to functions, which works on
7035 many platforms, but is not correct. As these functions are usually
7036 called by macros defined in OpenSSL header files, most source code
7037 should work without changes.
7040 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7041 sections with information on -D... compiler switches used for
7042 compiling the library so that applications can see them. To enable
7043 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7044 must be defined. E.g.,
7045 #define OPENSSL_ALGORITHM_DEFINES
7046 #include <openssl/opensslconf.h>
7047 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7048 [Richard Levitte, Ulf and Bodo Möller]
7050 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7054 *) Change the 'other' type in certificate aux info to a STACK_OF
7055 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7056 the required ASN1 format: arbitrary types determined by an OID.
7059 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7060 argument to 'req'. This is not because the function is newer or
7061 better than others it just uses the work 'NEW' in the certificate
7062 request header lines. Some software needs this.
7065 *) Reorganise password command line arguments: now passwords can be
7066 obtained from various sources. Delete the PEM_cb function and make
7067 it the default behaviour: i.e. if the callback is NULL and the
7068 usrdata argument is not NULL interpret it as a null terminated pass
7069 phrase. If usrdata and the callback are NULL then the pass phrase
7070 is prompted for as usual.
7073 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7074 the support is automatically enabled. The resulting binaries will
7075 autodetect the card and use it if present.
7076 [Ben Laurie and Compaq Inc.]
7078 *) Work around for Netscape hang bug. This sends certificate request
7079 and server done in one record. Since this is perfectly legal in the
7080 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7081 the bugs/SSLv3 entry for more info.
7084 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7087 *) Add -rand argument to smime and pkcs12 applications and read/write
7091 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7094 *) Add command line password options to the remaining applications.
7097 *) Bug fix for BN_div_recp() for numerators with an even number of
7101 *) More tests in bntest.c, and changed test_bn output.
7104 *) ./config recognizes MacOS X now.
7107 *) Bug fix for BN_div() when the first words of num and divsor are
7108 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7111 *) Add support for various broken PKCS#8 formats, and command line
7112 options to produce them.
7115 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7116 get temporary BIGNUMs from a BN_CTX.
7119 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7123 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7124 include a #define from the old name to the new. The original intent
7125 was that statically linked binaries could for example just call
7126 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7127 link with digests. This never worked becayse SSLeay_add_all_digests()
7128 and SSLeay_add_all_ciphers() were in the same source file so calling
7129 one would link with the other. They are now in separate source files.
7132 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7135 *) Use a less unusual form of the Miller-Rabin primality test (it used
7136 a binary algorithm for exponentiation integrated into the Miller-Rabin
7137 loop, our standard modexp algorithms are faster).
7140 *) Support for the EBCDIC character set completed.
7141 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7143 *) Source code cleanups: use const where appropriate, eliminate casts,
7144 use void * instead of char * in lhash.
7147 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7148 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7149 this the server could overwrite ephemeral keys that the client
7153 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7154 using 50 iterations of the Rabin-Miller test.
7156 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7157 iterations of the Rabin-Miller test as required by the appendix
7158 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7159 As BN_is_prime_fasttest includes trial division, DSA parameter
7160 generation becomes much faster.
7162 This implies a change for the callback functions in DSA_is_prime
7163 and DSA_generate_parameters: The callback function is called once
7164 for each positive witness in the Rabin-Miller test, not just
7165 occasionally in the inner loop; and the parameters to the
7166 callback function now provide an iteration count for the outer
7167 loop rather than for the current invocation of the inner loop.
7168 DSA_generate_parameters additionally can call the callback
7169 function with an 'iteration count' of -1, meaning that a
7170 candidate has passed the trial division test (when q is generated
7171 from an application-provided seed, trial division is skipped).
7174 *) New function BN_is_prime_fasttest that optionally does trial
7175 division before starting the Rabin-Miller test and has
7176 an additional BN_CTX * argument (whereas BN_is_prime always
7177 has to allocate at least one BN_CTX).
7178 'callback(1, -1, cb_arg)' is called when a number has passed the
7179 trial division stage.
7182 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7186 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7189 *) New function BN_pseudo_rand().
7192 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7193 bignum version of BN_from_montgomery() with the working code from
7194 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7198 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7199 made it impossible to use the same SSL_SESSION data structure in
7200 SSL2 clients in multiple threads.
7203 *) The return value of RAND_load_file() no longer counts bytes obtained
7204 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7205 to seed the PRNG (previously an explicit byte count was required).
7206 [Ulf Möller, Bodo Möller]
7208 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7209 used (char *) instead of (void *) and had casts all over the place.
7212 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7215 *) Retain source code compatibility for BN_prime_checks macro:
7216 BN_is_prime(..., BN_prime_checks, ...) now uses
7217 BN_prime_checks_for_size to determine the appropriate number of
7218 Rabin-Miller iterations.
7221 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7222 DH_CHECK_P_NOT_SAFE_PRIME.
7223 (Check if this is true? OpenPGP calls them "strong".)
7226 *) Merge the functionality of "dh" and "gendh" programs into a new program
7227 "dhparam". The old programs are retained for now but will handle DH keys
7228 (instead of parameters) in future.
7231 *) Make the ciphers, s_server and s_client programs check the return values
7232 when a new cipher list is set.
7235 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7236 ciphers. Before when the 56bit ciphers were enabled the sorting was
7239 The syntax for the cipher sorting has been extended to support sorting by
7240 cipher-strength (using the strength_bits hard coded in the tables).
7241 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7243 Fix a bug in the cipher-command parser: when supplying a cipher command
7244 string with an "undefined" symbol (neither command nor alphanumeric
7245 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7246 an error is flagged.
7248 Due to the strength-sorting extension, the code of the
7249 ssl_create_cipher_list() function was completely rearranged. I hope that
7250 the readability was also increased :-)
7251 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7253 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7254 for the first serial number and places 2 in the serial number file. This
7255 avoids problems when the root CA is created with serial number zero and
7256 the first user certificate has the same issuer name and serial number
7260 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7261 the new code. Add documentation for this stuff.
7264 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7265 X509_*() to X509at_*() on the grounds that they don't handle X509
7266 structures and behave in an analagous way to the X509v3 functions:
7267 they shouldn't be called directly but wrapper functions should be used
7270 So we also now have some wrapper functions that call the X509at functions
7271 when passed certificate requests. (TO DO: similar things can be done with
7272 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7273 things. Some of these need some d2i or i2d and print functionality
7274 because they handle more complex structures.)
7277 *) Add missing #ifndefs that caused missing symbols when building libssl
7278 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7279 NO_RSA in ssl/s2*.c.
7280 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7282 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7283 has a return value which indicates the quality of the random data
7284 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7285 error queue. New function RAND_pseudo_bytes() generates output that is
7286 guaranteed to be unique but not unpredictable. RAND_add is like
7287 RAND_seed, but takes an extra argument for an entropy estimate
7288 (RAND_seed always assumes full entropy).
7291 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7292 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7293 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7294 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7295 false-positive rate of at most 2^-80 for random input.
7298 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7301 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7302 in the 0.9.5 release), this returns the chain
7303 from an X509_CTX structure with a dup of the stack and all
7304 the X509 reference counts upped: so the stack will exist
7305 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7308 Also make SSL_SESSION_print() print out the verify return
7312 *) Add manpage for the pkcs12 command. Also change the default
7313 behaviour so MAC iteration counts are used unless the new
7314 -nomaciter option is used. This improves file security and
7315 only older versions of MSIE (4.0 for example) need it.
7318 *) Honor the no-xxx Configure options when creating .DEF files.
7321 *) Add PKCS#10 attributes to field table: challengePassword,
7322 unstructuredName and unstructuredAddress. These are taken from
7323 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7324 international characters are used.
7326 More changes to X509_ATTRIBUTE code: allow the setting of types
7327 based on strings. Remove the 'loc' parameter when adding
7328 attributes because these will be a SET OF encoding which is sorted
7332 *) Initial changes to the 'req' utility to allow request generation
7333 automation. This will allow an application to just generate a template
7334 file containing all the field values and have req construct the
7337 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7338 used all over the place including certificate requests and PKCS#7
7339 structures. They are currently handled manually where necessary with
7340 some primitive wrappers for PKCS#7. The new functions behave in a
7341 manner analogous to the X509 extension functions: they allow
7342 attributes to be looked up by NID and added.
7344 Later something similar to the X509V3 code would be desirable to
7345 automatically handle the encoding, decoding and printing of the
7346 more complex types. The string types like challengePassword can
7347 be handled by the string table functions.
7349 Also modified the multi byte string table handling. Now there is
7350 a 'global mask' which masks out certain types. The table itself
7351 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7352 is useful when for example there is only one permissible type
7353 (as in countryName) and using the mask might result in no valid
7357 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7358 SSL_get_peer_finished to allow applications to obtain the latest
7359 Finished messages sent to the peer or expected from the peer,
7360 respectively. (SSL_get_peer_finished is usually the Finished message
7361 actually received from the peer, otherwise the protocol will be aborted.)
7363 As the Finished message are message digests of the complete handshake
7364 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7365 be used for external authentication procedures when the authentication
7366 provided by SSL/TLS is not desired or is not enough.
7369 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7370 the host supports BWX extension and if Compaq C is present on the
7371 $PATH. Just exploiting of the BWX extension results in 20-30%
7372 performance kick for some algorithms, e.g. DES and RC4 to mention
7373 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7377 *) Add support for MS "fast SGC". This is arguably a violation of the
7378 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7379 weak crypto and after checking the certificate is SGC a second one
7380 with strong crypto. MS SGC stops the first handshake after receiving
7381 the server certificate message and sends a second client hello. Since
7382 a server will typically do all the time consuming operations before
7383 expecting any further messages from the client (server key exchange
7384 is the most expensive) there is little difference between the two.
7386 To get OpenSSL to support MS SGC we have to permit a second client
7387 hello message after we have sent server done. In addition we have to
7388 reset the MAC if we do get this second client hello.
7391 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7392 if a DER encoded private key is RSA or DSA traditional format. Changed
7393 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7394 format DER encoded private key. Newer code should use PKCS#8 format which
7395 has the key type encoded in the ASN1 structure. Added DER private key
7396 support to pkcs8 application.
7399 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7400 ciphersuites has been selected (as required by the SSL 3/TLS 1
7401 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7402 is set, we interpret this as a request to violate the specification
7403 (the worst that can happen is a handshake failure, and 'correct'
7404 behaviour would result in a handshake failure anyway).
7407 *) In SSL_CTX_add_session, take into account that there might be multiple
7408 SSL_SESSION structures with the same session ID (e.g. when two threads
7409 concurrently obtain them from an external cache).
7410 The internal cache can handle only one SSL_SESSION with a given ID,
7411 so if there's a conflict, we now throw out the old one to achieve
7415 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7416 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7417 some routines that use cipher OIDs: some ciphers do not have OIDs
7418 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7422 *) Simplify the trust setting structure and code. Now we just have
7423 two sequences of OIDs for trusted and rejected settings. These will
7424 typically have values the same as the extended key usage extension
7425 and any application specific purposes.
7427 The trust checking code now has a default behaviour: it will just
7428 check for an object with the same NID as the passed id. Functions can
7429 be provided to override either the default behaviour or the behaviour
7430 for a given id. SSL client, server and email already have functions
7431 in place for compatibility: they check the NID and also return "trusted"
7432 if the certificate is self signed.
7435 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7436 traditional format into an EVP_PKEY structure.
7439 *) Add a password callback function PEM_cb() which either prompts for
7440 a password if usr_data is NULL or otherwise assumes it is a null
7441 terminated password. Allow passwords to be passed on command line
7442 environment or config files in a few more utilities.
7445 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7446 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7447 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7448 Update documentation.
7451 *) Support for ASN1 "NULL" type. This could be handled before by using
7452 ASN1_TYPE but there wasn't any function that would try to read a NULL
7453 and produce an error if it couldn't. For compatibility we also have
7454 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7455 don't allocate anything because they don't need to.
7458 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7460 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7462 *) Rebuild of the memory allocation routines used by OpenSSL code and
7463 possibly others as well. The purpose is to make an interface that
7464 provide hooks so anyone can build a separate set of allocation and
7465 deallocation routines to be used by OpenSSL, for example memory
7466 pool implementations, or something else, which was previously hard
7467 since Malloc(), Realloc() and Free() were defined as macros having
7468 the values malloc, realloc and free, respectively (except for Win32
7469 compilations). The same is provided for memory debugging code.
7470 OpenSSL already comes with functionality to find memory leaks, but
7471 this gives people a chance to debug other memory problems.
7473 With these changes, a new set of functions and macros have appeared:
7475 CRYPTO_set_mem_debug_functions() [F]
7476 CRYPTO_get_mem_debug_functions() [F]
7477 CRYPTO_dbg_set_options() [F]
7478 CRYPTO_dbg_get_options() [F]
7479 CRYPTO_malloc_debug_init() [M]
7481 The memory debug functions are NULL by default, unless the library
7482 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7483 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7484 gives the standard debugging functions that come with OpenSSL) or
7485 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7486 provided by the library user) must be used. When the standard
7487 debugging functions are used, CRYPTO_dbg_set_options can be used to
7488 request additional information:
7489 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7490 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7492 Also, things like CRYPTO_set_mem_functions will always give the
7493 expected result (the new set of functions is used for allocation
7494 and deallocation) at all times, regardless of platform and compiler
7497 To finish it up, some functions that were never use in any other
7498 way than through macros have a new API and new semantic:
7501 CRYPTO_dbg_realloc()
7504 All macros of value have retained their old syntax.
7505 [Richard Levitte and Bodo Moeller]
7507 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7508 ordering of SMIMECapabilities wasn't in "strength order" and there
7509 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7513 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7514 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7515 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7517 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7518 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7519 functionality to handle multipart/signed properly) and a utility
7520 called 'smime' to call all this stuff. This is based on code I
7521 originally wrote for Celo who have kindly allowed it to be
7522 included in OpenSSL.
7525 *) Add variants des_set_key_checked and des_set_key_unchecked of
7526 des_set_key (aka des_key_sched). Global variable des_check_key
7527 decides which of these is called by des_set_key; this way
7528 des_check_key behaves as it always did, but applications and
7529 the library itself, which was buggy for des_check_key == 1,
7530 have a cleaner way to pick the version they need.
7533 *) New function PKCS12_newpass() which changes the password of a
7537 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7538 dynamic mix. In both cases the ids can be used as an index into the
7539 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7540 functions so they accept a list of the field values and the
7541 application doesn't need to directly manipulate the X509_TRUST
7545 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7549 *) Modify the way the V3 extension code looks up extensions. This now
7550 works in a similar way to the object code: we have some "standard"
7551 extensions in a static table which is searched with OBJ_bsearch()
7552 and the application can add dynamic ones if needed. The file
7553 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7554 updated whenever a new extension is added to the core code and kept
7555 in ext_nid order. There is a simple program 'tabtest.c' which checks
7556 this. New extensions are not added too often so this file can readily
7557 be maintained manually.
7559 There are two big advantages in doing things this way. The extensions
7560 can be looked up immediately and no longer need to be "added" using
7561 X509V3_add_standard_extensions(): this function now does nothing.
7562 [Side note: I get *lots* of email saying the extension code doesn't
7563 work because people forget to call this function]
7564 Also no dynamic allocation is done unless new extensions are added:
7565 so if we don't add custom extensions there is no need to call
7566 X509V3_EXT_cleanup().
7569 *) Modify enc utility's salting as follows: make salting the default. Add a
7570 magic header, so unsalted files fail gracefully instead of just decrypting
7571 to garbage. This is because not salting is a big security hole, so people
7572 should be discouraged from doing it.
7575 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7576 digest to be passed on the command line but it only used this
7577 parameter when signing a certificate. Modified so all relevant
7578 operations are affected by the digest parameter including the
7579 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7580 DSA key was used because it didn't fix the digest.
7583 *) Initial certificate chain verify code. Currently tests the untrusted
7584 certificates for consistency with the verify purpose (which is set
7585 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7587 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7588 this is because it will reject chains with invalid extensions whereas
7589 every previous version of OpenSSL and SSLeay made no checks at all.
7591 Trust code: checks the root CA for the relevant trust settings. Trust
7592 settings have an initial value consistent with the verify purpose: e.g.
7593 if the verify purpose is for SSL client use it expects the CA to be
7594 trusted for SSL client use. However the default value can be changed to
7595 permit custom trust settings: one example of this would be to only trust
7596 certificates from a specific "secure" set of CAs.
7598 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7599 which should be used for version portability: especially since the
7600 verify structure is likely to change more often now.
7602 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7603 to set them. If not set then assume SSL clients will verify SSL servers
7606 Two new options to the verify program: -untrusted allows a set of
7607 untrusted certificates to be passed in and -purpose which sets the
7608 intended purpose of the certificate. If a purpose is set then the
7609 new chain verify code is used to check extension consistency.
7612 *) Support for the authority information access extension.
7615 *) Modify RSA and DSA PEM read routines to transparently handle
7616 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7617 public keys in a format compatible with certificate
7618 SubjectPublicKeyInfo structures. Unfortunately there were already
7619 functions called *_PublicKey_* which used various odd formats so
7620 these are retained for compatibility: however the DSA variants were
7621 never in a public release so they have been deleted. Changed dsa/rsa
7622 utilities to handle the new format: note no releases ever handled public
7623 keys so we should be OK.
7625 The primary motivation for this change is to avoid the same fiasco
7626 that dogs private keys: there are several incompatible private key
7627 formats some of which are standard and some OpenSSL specific and
7628 require various evil hacks to allow partial transparent handling and
7629 even then it doesn't work with DER formats. Given the option anything
7630 other than PKCS#8 should be dumped: but the other formats have to
7631 stay in the name of compatibility.
7633 With public keys and the benefit of hindsight one standard format
7634 is used which works with EVP_PKEY, RSA or DSA structures: though
7635 it clearly returns an error if you try to read the wrong kind of key.
7637 Added a -pubkey option to the 'x509' utility to output the public key.
7638 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7639 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7640 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7641 that do the same as the EVP_PKEY_assign_*() except they up the
7642 reference count of the added key (they don't "swallow" the
7646 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7647 CRLs would fail if the file contained no certificates or no CRLs:
7648 added a new function to read in both types and return the number
7649 read: this means that if none are read it will be an error. The
7650 DER versions of the certificate and CRL reader would always fail
7651 because it isn't possible to mix certificates and CRLs in DER format
7652 without choking one or the other routine. Changed this to just read
7653 a certificate: this is the best we can do. Also modified the code
7654 in apps/verify.c to take notice of return codes: it was previously
7655 attempting to read in certificates from NULL pointers and ignoring
7656 any errors: this is one reason why the cert and CRL reader seemed
7657 to work. It doesn't check return codes from the default certificate
7658 routines: these may well fail if the certificates aren't installed.
7661 *) Code to support otherName option in GeneralName.
7664 *) First update to verify code. Change the verify utility
7665 so it warns if it is passed a self signed certificate:
7666 for consistency with the normal behaviour. X509_verify
7667 has been modified to it will now verify a self signed
7668 certificate if *exactly* the same certificate appears
7669 in the store: it was previously impossible to trust a
7670 single self signed certificate. This means that:
7671 openssl verify ss.pem
7672 now gives a warning about a self signed certificate but
7673 openssl verify -CAfile ss.pem ss.pem
7677 *) For servers, store verify_result in SSL_SESSION data structure
7678 (and add it to external session representation).
7679 This is needed when client certificate verifications fails,
7680 but an application-provided verification callback (set by
7681 SSL_CTX_set_cert_verify_callback) allows accepting the session
7682 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7683 but returns 1): When the session is reused, we have to set
7684 ssl->verify_result to the appropriate error code to avoid
7686 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7688 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7689 case in PKCS7_dataInit() where the signed PKCS7 structure
7690 didn't contain any existing data because it was being created.
7691 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7693 *) Add a salt to the key derivation routines in enc.c. This
7694 forms the first 8 bytes of the encrypted file. Also add a
7695 -S option to allow a salt to be input on the command line.
7698 *) New function X509_cmp(). Oddly enough there wasn't a function
7699 to compare two certificates. We do this by working out the SHA1
7700 hash and comparing that. X509_cmp() will be needed by the trust
7704 *) SSL_get1_session() is like SSL_get_session(), but increments
7705 the reference count in the SSL_SESSION returned.
7706 [Geoff Thorpe <geoff@eu.c2.net>]
7708 *) Fix for 'req': it was adding a null to request attributes.
7709 Also change the X509_LOOKUP and X509_INFO code to handle
7710 certificate auxiliary information.
7713 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7717 *) Add the possibility to add extra information to the memory leak
7718 detecting output, to form tracebacks, showing from where each
7719 allocation was originated: CRYPTO_push_info("constant string") adds
7720 the string plus current file name and line number to a per-thread
7721 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7722 is like calling CYRPTO_pop_info() until the stack is empty.
7723 Also updated memory leak detection code to be multi-thread-safe.
7726 *) Add options -text and -noout to pkcs7 utility and delete the
7727 encryption options which never did anything. Update docs.
7730 *) Add options to some of the utilities to allow the pass phrase
7731 to be included on either the command line (not recommended on
7732 OSes like Unix) or read from the environment. Update the
7733 manpages and fix a few bugs.
7736 *) Add a few manpages for some of the openssl commands.
7739 *) Fix the -revoke option in ca. It was freeing up memory twice,
7740 leaking and not finding already revoked certificates.
7743 *) Extensive changes to support certificate auxiliary information.
7744 This involves the use of X509_CERT_AUX structure and X509_AUX
7745 functions. An X509_AUX function such as PEM_read_X509_AUX()
7746 can still read in a certificate file in the usual way but it
7747 will also read in any additional "auxiliary information". By
7748 doing things this way a fair degree of compatibility can be
7749 retained: existing certificates can have this information added
7750 using the new 'x509' options.
7752 Current auxiliary information includes an "alias" and some trust
7753 settings. The trust settings will ultimately be used in enhanced
7754 certificate chain verification routines: currently a certificate
7755 can only be trusted if it is self signed and then it is trusted
7759 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7760 The problem was that one of the replacement routines had not been working
7761 since SSLeay releases. For now the offending routine has been replaced
7762 with non-optimised assembler. Even so, this now gives around 95%
7763 performance improvement for 1024 bit RSA signs.
7766 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7767 handling. Most clients have the effective key size in bits equal to
7768 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7769 A few however don't do this and instead use the size of the decrypted key
7770 to determine the RC2 key length and the AlgorithmIdentifier to determine
7771 the effective key length. In this case the effective key length can still
7772 be 40 bits but the key length can be 168 bits for example. This is fixed
7773 by manually forcing an RC2 key into the EVP_PKEY structure because the
7774 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7775 the key length and effective key length are equal.
7778 *) Add a bunch of functions that should simplify the creation of
7779 X509_NAME structures. Now you should be able to do:
7780 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7781 and have it automatically work out the correct field type and fill in
7782 the structures. The more adventurous can try:
7783 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7784 and it will (hopefully) work out the correct multibyte encoding.
7787 *) Change the 'req' utility to use the new field handling and multibyte
7788 copy routines. Before the DN field creation was handled in an ad hoc
7789 way in req, ca, and x509 which was rather broken and didn't support
7790 BMPStrings or UTF8Strings. Since some software doesn't implement
7791 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7792 using the dirstring_type option. See the new comment in the default
7793 openssl.cnf for more info.
7796 *) Make crypto/rand/md_rand.c more robust:
7797 - Assure unique random numbers after fork().
7798 - Make sure that concurrent threads access the global counter and
7799 md serializably so that we never lose entropy in them
7800 or use exactly the same state in multiple threads.
7801 Access to the large state is not always serializable because
7802 the additional locking could be a performance killer, and
7803 md should be large enough anyway.
7806 *) New file apps/app_rand.c with commonly needed functionality
7807 for handling the random seed file.
7809 Use the random seed file in some applications that previously did not:
7811 dsaparam -genkey (which also ignored its '-rand' option),
7814 x509 (when signing).
7815 Except on systems with /dev/urandom, it is crucial to have a random
7816 seed file at least for key creation, DSA signing, and for DH exchanges;
7817 for RSA signatures we could do without one.
7819 gendh and gendsa (unlike genrsa) used to read only the first byte
7820 of each file listed in the '-rand' option. The function as previously
7821 found in genrsa is now in app_rand.c and is used by all programs
7822 that support '-rand'.
7825 *) In RAND_write_file, use mode 0600 for creating files;
7826 don't just chmod when it may be too late.
7829 *) Report an error from X509_STORE_load_locations
7830 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7833 *) New function ASN1_mbstring_copy() this copies a string in either
7834 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7835 into an ASN1_STRING type. A mask of permissible types is passed
7836 and it chooses the "minimal" type to use or an error if not type
7840 *) Add function equivalents to the various macros in asn1.h. The old
7841 macros are retained with an M_ prefix. Code inside the library can
7842 use the M_ macros. External code (including the openssl utility)
7843 should *NOT* in order to be "shared library friendly".
7846 *) Add various functions that can check a certificate's extensions
7847 to see if it usable for various purposes such as SSL client,
7848 server or S/MIME and CAs of these types. This is currently
7849 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7850 verification. Also added a -purpose flag to x509 utility to
7851 print out all the purposes.
7854 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7858 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7859 for, obtain and decode and extension and obtain its critical flag.
7860 This allows all the necessary extension code to be handled in a
7861 single function call.
7864 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7865 platforms. See crypto/rc4/rc4_enc.c for further details.
7868 *) New -noout option to asn1parse. This causes no output to be produced
7869 its main use is when combined with -strparse and -out to extract data
7870 from a file (which may not be in ASN.1 format).
7873 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7874 when producing the local key id.
7875 [Richard Levitte <levitte@stacken.kth.se>]
7877 *) New option -dhparam in s_server. This allows a DH parameter file to be
7878 stated explicitly. If it is not stated then it tries the first server
7879 certificate file. The previous behaviour hard coded the filename
7883 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7884 a public key to be input or output. For example:
7885 openssl rsa -in key.pem -pubout -out pubkey.pem
7886 Also added necessary DSA public key functions to handle this.
7889 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7890 in the message. This was handled by allowing
7891 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7892 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7894 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7895 to the end of the strings whereas this didn't. This would cause problems
7896 if strings read with d2i_ASN1_bytes() were later modified.
7897 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7899 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7900 data and it contains EOF it will end up returning an error. This is
7901 caused by input 46 bytes long. The cause is due to the way base64
7902 BIOs find the start of base64 encoded data. They do this by trying a
7903 trial decode on each line until they find one that works. When they
7904 do a flag is set and it starts again knowing it can pass all the
7905 data directly through the decoder. Unfortunately it doesn't reset
7906 the context it uses. This means that if EOF is reached an attempt
7907 is made to pass two EOFs through the context and this causes the
7908 resulting error. This can also cause other problems as well. As is
7909 usual with these problems it takes *ages* to find and the fix is
7910 trivial: move one line.
7911 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7913 *) Ugly workaround to get s_client and s_server working under Windows. The
7914 old code wouldn't work because it needed to select() on sockets and the
7915 tty (for keypresses and to see if data could be written). Win32 only
7916 supports select() on sockets so we select() with a 1s timeout on the
7917 sockets and then see if any characters are waiting to be read, if none
7918 are present then we retry, we also assume we can always write data to
7919 the tty. This isn't nice because the code then blocks until we've
7920 received a complete line of data and it is effectively polling the
7921 keyboard at 1s intervals: however it's quite a bit better than not
7922 working at all :-) A dedicated Windows application might handle this
7923 with an event loop for example.
7926 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7927 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7928 will be called when RSA_sign() and RSA_verify() are used. This is useful
7929 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7930 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7931 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7932 This necessitated the support of an extra signature type NID_md5_sha1
7933 for SSL signatures and modifications to the SSL library to use it instead
7934 of calling RSA_public_decrypt() and RSA_private_encrypt().
7937 *) Add new -verify -CAfile and -CApath options to the crl program, these
7938 will lookup a CRL issuers certificate and verify the signature in a
7939 similar way to the verify program. Tidy up the crl program so it
7940 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7941 less strict. It will now permit CRL extensions even if it is not
7942 a V2 CRL: this will allow it to tolerate some broken CRLs.
7945 *) Initialize all non-automatic variables each time one of the openssl
7946 sub-programs is started (this is necessary as they may be started
7947 multiple times from the "OpenSSL>" prompt).
7948 [Lennart Bang, Bodo Moeller]
7950 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7951 removing all other RSA functionality (this is what NO_RSA does). This
7952 is so (for example) those in the US can disable those operations covered
7953 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7957 *) Non-copying interface to BIO pairs.
7958 (still largely untested)
7961 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7962 ASCII string. This was handled independently in various places before.
7965 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7966 UTF8 strings a character at a time.
7969 *) Use client_version from client hello to select the protocol
7970 (s23_srvr.c) and for RSA client key exchange verification
7971 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7974 *) Add various utility functions to handle SPKACs, these were previously
7975 handled by poking round in the structure internals. Added new function
7976 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7977 print, verify and generate SPKACs. Based on an original idea from
7978 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7981 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7984 *) Allow the config file extension section to be overwritten on the
7985 command line. Based on an original idea from Massimiliano Pala
7986 <madwolf@comune.modena.it>. The new option is called -extensions
7987 and can be applied to ca, req and x509. Also -reqexts to override
7988 the request extensions in req and -crlexts to override the crl extensions
7992 *) Add new feature to the SPKAC handling in ca. Now you can include
7993 the same field multiple times by preceding it by "XXXX." for example:
7996 this is the same syntax as used in the req config file.
7999 *) Allow certificate extensions to be added to certificate requests. These
8000 are specified in a 'req_extensions' option of the req section of the
8001 config file. They can be printed out with the -text option to req but
8002 are otherwise ignored at present.
8005 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8006 data read consists of only the final block it would not decrypted because
8007 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8008 A misplaced 'break' also meant the decrypted final block might not be
8009 copied until the next read.
8012 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8013 a few extra parameters to the DH structure: these will be useful if
8014 for example we want the value of 'q' or implement X9.42 DH.
8017 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8018 provides hooks that allow the default DSA functions or functions on a
8019 "per key" basis to be replaced. This allows hardware acceleration and
8020 hardware key storage to be handled without major modification to the
8021 library. Also added low level modexp hooks and CRYPTO_EX structure and
8022 associated functions.
8025 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8026 as "read only": it can't be written to and the buffer it points to will
8027 not be freed. Reading from a read only BIO is much more efficient than
8028 a normal memory BIO. This was added because there are several times when
8029 an area of memory needs to be read from a BIO. The previous method was
8030 to create a memory BIO and write the data to it, this results in two
8031 copies of the data and an O(n^2) reading algorithm. There is a new
8032 function BIO_new_mem_buf() which creates a read only memory BIO from
8033 an area of memory. Also modified the PKCS#7 routines to use read only
8037 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8038 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8039 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8040 but a retry condition occured while trying to read the rest.
8043 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8044 NID_pkcs7_encrypted by default: this was wrong since this should almost
8045 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8046 the encrypted data type: this is a more sensible place to put it and it
8047 allows the PKCS#12 code to be tidied up that duplicated this
8051 *) Changed obj_dat.pl script so it takes its input and output files on
8052 the command line. This should avoid shell escape redirection problems
8056 *) Initial support for certificate extension requests, these are included
8057 in things like Xenroll certificate requests. Included functions to allow
8058 extensions to be obtained and added.
8061 *) -crlf option to s_client and s_server for sending newlines as
8062 CRLF (as required by many protocols).
8065 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8067 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8068 [Ralf S. Engelschall]
8070 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8071 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8073 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8077 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8078 DH parameters/keys (q is lost during that conversion, but the resulting
8079 DH parameters contain its length).
8081 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8082 much faster than DH_generate_parameters (which creates parameters
8083 where p = 2*q + 1), and also the smaller q makes DH computations
8084 much more efficient (160-bit exponentiation instead of 1024-bit
8085 exponentiation); so this provides a convenient way to support DHE
8086 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8087 utter importance to use
8088 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8090 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8091 when such DH parameters are used, because otherwise small subgroup
8092 attacks may become possible!
8095 *) Avoid memory leak in i2d_DHparams.
8098 *) Allow the -k option to be used more than once in the enc program:
8099 this allows the same encrypted message to be read by multiple recipients.
8102 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8103 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8104 it will always use the numerical form of the OID, even if it has a short
8108 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8109 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8110 otherwise bn_mod_exp was called. In the case of hardware keys for example
8111 no private key components need be present and it might store extra data
8112 in the RSA structure, which cannot be accessed from bn_mod_exp.
8113 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8114 private key operations.
8117 *) Added support for SPARC Linux.
8120 *) pem_password_cb function type incompatibly changed from
8121 typedef int pem_password_cb(char *buf, int size, int rwflag);
8123 ....(char *buf, int size, int rwflag, void *userdata);
8124 so that applications can pass data to their callbacks:
8125 The PEM[_ASN1]_{read,write}... functions and macros now take an
8126 additional void * argument, which is just handed through whenever
8127 the password callback is called.
8128 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8130 New function SSL_CTX_set_default_passwd_cb_userdata.
8132 Compatibility note: As many C implementations push function arguments
8133 onto the stack in reverse order, the new library version is likely to
8134 interoperate with programs that have been compiled with the old
8135 pem_password_cb definition (PEM_whatever takes some data that
8136 happens to be on the stack as its last argument, and the callback
8137 just ignores this garbage); but there is no guarantee whatsoever that
8140 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8141 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8142 problems not only on Windows, but also on some Unix platforms.
8143 To avoid problematic command lines, these definitions are now in an
8144 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8145 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8148 *) MIPS III/IV assembler module is reimplemented.
8151 *) More DES library cleanups: remove references to srand/rand and
8152 delete an unused file.
8155 *) Add support for the the free Netwide assembler (NASM) under Win32,
8156 since not many people have MASM (ml) and it can be hard to obtain.
8157 This is currently experimental but it seems to work OK and pass all
8158 the tests. Check out INSTALL.W32 for info.
8161 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8162 without temporary keys kept an extra copy of the server key,
8163 and connections with temporary keys did not free everything in case
8167 *) New function RSA_check_key and new openssl rsa option -check
8168 for verifying the consistency of RSA keys.
8169 [Ulf Moeller, Bodo Moeller]
8171 *) Various changes to make Win32 compile work:
8172 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8173 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8174 comparison" warnings.
8175 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8178 *) Add a debugging option to PKCS#5 v2 key generation function: when
8179 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8180 derived keys are printed to stderr.
8183 *) Copy the flags in ASN1_STRING_dup().
8184 [Roman E. Pavlov <pre@mo.msk.ru>]
8186 *) The x509 application mishandled signing requests containing DSA
8187 keys when the signing key was also DSA and the parameters didn't match.
8189 It was supposed to omit the parameters when they matched the signing key:
8190 the verifying software was then supposed to automatically use the CA's
8191 parameters if they were absent from the end user certificate.
8193 Omitting parameters is no longer recommended. The test was also
8194 the wrong way round! This was probably due to unusual behaviour in
8195 EVP_cmp_parameters() which returns 1 if the parameters match.
8196 This meant that parameters were omitted when they *didn't* match and
8197 the certificate was useless. Certificates signed with 'ca' didn't have
8199 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8201 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8202 The interface is as follows:
8203 Applications can use
8204 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8205 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8206 "off" is now the default.
8207 The library internally uses
8208 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8209 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8210 to disable memory-checking temporarily.
8212 Some inconsistent states that previously were possible (and were
8213 even the default) are now avoided.
8215 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8216 with each memory chunk allocated; this is occasionally more helpful
8217 than just having a counter.
8219 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8221 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8225 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8226 which largely parallels "options", but is for changing API behaviour,
8227 whereas "options" are about protocol behaviour.
8228 Initial "mode" flags are:
8230 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8231 a single record has been written.
8232 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8233 retries use the same buffer location.
8234 (But all of the contents must be
8238 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8241 *) Fix problems with no-hmac etc.
8242 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8244 *) New functions RSA_get_default_method(), RSA_set_method() and
8245 RSA_get_method(). These allows replacement of RSA_METHODs without having
8246 to mess around with the internals of an RSA structure.
8249 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8250 Also really enable memory leak checks in openssl.c and in some
8252 [Chad C. Mulligan, Bodo Moeller]
8254 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8255 up the length of negative integers. This has now been simplified to just
8256 store the length when it is first determined and use it later, rather
8257 than trying to keep track of where data is copied and updating it to
8259 [Steve Henson, reported by Brien Wheeler
8260 <bwheeler@authentica-security.com>]
8262 *) Add a new function PKCS7_signatureVerify. This allows the verification
8263 of a PKCS#7 signature but with the signing certificate passed to the
8264 function itself. This contrasts with PKCS7_dataVerify which assumes the
8265 certificate is present in the PKCS#7 structure. This isn't always the
8266 case: certificates can be omitted from a PKCS#7 structure and be
8267 distributed by "out of band" means (such as a certificate database).
8270 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8271 function prototypes in pem.h, also change util/mkdef.pl to add the
8272 necessary function names.
8275 *) mk1mf.pl (used by Windows builds) did not properly read the
8276 options set by Configure in the top level Makefile, and Configure
8277 was not even able to write more than one option correctly.
8278 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8281 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8282 file to be loaded from a BIO or FILE pointer. The BIO version will
8283 for example allow memory BIOs to contain config info.
8286 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8287 Whoever hopes to achieve shared-library compatibility across versions
8288 must use this, not the compile-time macro.
8289 (Exercise 0.9.4: Which is the minimum library version required by
8291 Note: All this applies only to multi-threaded programs, others don't
8295 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8296 through a BIO pair triggered the default case, i.e.
8297 SSLerr(...,SSL_R_UNKNOWN_STATE).
8300 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8301 can use the SSL library even if none of the specific BIOs is
8305 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8306 for the encoded length.
8307 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8309 *) Add initial documentation of the X509V3 functions.
8312 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8313 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8314 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8315 secure PKCS#8 private key format with a high iteration count.
8318 *) Fix determination of Perl interpreter: A perl or perl5
8319 _directory_ in $PATH was also accepted as the interpreter.
8320 [Ralf S. Engelschall]
8322 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8323 wrong with it but it was very old and did things like calling
8324 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8328 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8329 to use the new extension code.
8332 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8333 with macros. This should make it easier to change their form, add extra
8334 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8338 *) Add to configuration table a new entry that can specify an alternative
8339 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8340 according to Mark Crispin <MRC@Panda.COM>.
8344 *) DES CBC did not update the IV. Weird.
8347 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8348 Changing the behaviour of the former might break existing programs --
8349 where IV updating is needed, des_ncbc_encrypt can be used.
8352 *) When bntest is run from "make test" it drives bc to check its
8353 calculations, as well as internally checking them. If an internal check
8354 fails, it needs to cause bc to give a non-zero result or make test carries
8355 on without noticing the failure. Fixed.
8358 *) DES library cleanups.
8361 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8362 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8363 ciphers. NOTE: although the key derivation function has been verified
8364 against some published test vectors it has not been extensively tested
8365 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8369 *) Instead of "mkdir -p", which is not fully portable, use new
8370 Perl script "util/mkdir-p.pl".
8373 *) Rewrite the way password based encryption (PBE) is handled. It used to
8374 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8375 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8376 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8377 the 'parameter' field of the AlgorithmIdentifier is passed to the
8378 underlying key generation function so it must do its own ASN1 parsing.
8379 This has also changed the EVP_PBE_CipherInit() function which now has a
8380 'parameter' argument instead of literal salt and iteration count values
8381 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8384 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8385 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8386 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8387 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8388 value was just used as a "magic string" and not used directly its
8389 value doesn't matter.
8392 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8396 *) "linux-sparc64" configuration (ultrapenguin).
8397 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8398 "linux-sparc" configuration.
8399 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8401 *) config now generates no-xxx options for missing ciphers.
8404 *) Support the EBCDIC character set (work in progress).
8405 File ebcdic.c not yet included because it has a different license.
8406 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8408 *) Support BS2000/OSD-POSIX.
8409 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8411 *) Make callbacks for key generation use void * instead of char *.
8414 *) Make S/MIME samples compile (not yet tested).
8417 *) Additional typesafe stacks.
8420 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8424 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8426 *) New configuration variant "sco5-gcc".
8428 *) Updated some demos.
8429 [Sean O Riordain, Wade Scholine]
8431 *) Add missing BIO_free at exit of pkcs12 application.
8434 *) Fix memory leak in conf.c.
8437 *) Updates for Win32 to assembler version of MD5.
8440 *) Set #! path to perl in apps/der_chop to where we found it
8441 instead of using a fixed path.
8444 *) SHA library changes for irix64-mips4-cc.
8447 *) Improvements for VMS support.
8451 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8453 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8454 This also avoids the problems with SC4.2 and unpatched SC5.
8455 [Andy Polyakov <appro@fy.chalmers.se>]
8457 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8458 These are required because of the typesafe stack would otherwise break
8459 existing code. If old code used a structure member which used to be STACK
8460 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8461 sk_num or sk_value it would produce an error because the num, data members
8462 are not present in STACK_OF. Now it just produces a warning. sk_set
8463 replaces the old method of assigning a value to sk_value
8464 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8465 that does this will no longer work (and should use sk_set instead) but
8466 this could be regarded as a "questionable" behaviour anyway.
8469 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8470 correctly handle encrypted S/MIME data.
8473 *) Change type of various DES function arguments from des_cblock
8474 (which means, in function argument declarations, pointer to char)
8475 to des_cblock * (meaning pointer to array with 8 char elements),
8476 which allows the compiler to do more typechecking; it was like
8477 that back in SSLeay, but with lots of ugly casts.
8479 Introduce new type const_des_cblock.
8482 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8483 problems: find RecipientInfo structure that matches recipient certificate
8484 and initialise the ASN1 structures properly based on passed cipher.
8487 *) Belatedly make the BN tests actually check the results.
8490 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8491 to and from BNs: it was completely broken. New compilation option
8492 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8493 key elements as negative integers.
8496 *) Reorganize and speed up MD5.
8497 [Andy Polyakov <appro@fy.chalmers.se>]
8500 [Richard Levitte <richard@levitte.org>]
8502 *) New option -out to asn1parse to allow the parsed structure to be
8503 output to a file. This is most useful when combined with the -strparse
8504 option to examine the output of things like OCTET STRINGS.
8507 *) Make SSL library a little more fool-proof by not requiring any longer
8508 that SSL_set_{accept,connect}_state be called before
8509 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8510 in many applications because usually everything *appeared* to work as
8511 intended anyway -- now it really works as intended).
8514 *) Move openssl.cnf out of lib/.
8517 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8518 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8519 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8520 [Ralf S. Engelschall]
8522 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8523 handle PKCS#7 enveloped data properly.
8524 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8526 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8527 copying pointers. The cert_st handling is changed by this in
8528 various ways (and thus what used to be known as ctx->default_cert
8529 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8530 any longer when s->cert does not give us what we need).
8531 ssl_cert_instantiate becomes obsolete by this change.
8532 As soon as we've got the new code right (possibly it already is?),
8533 we have solved a couple of bugs of the earlier code where s->cert
8534 was used as if it could not have been shared with other SSL structures.
8536 Note that using the SSL API in certain dirty ways now will result
8537 in different behaviour than observed with earlier library versions:
8538 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8539 does not influence s as it used to.
8541 In order to clean up things more thoroughly, inside SSL_SESSION
8542 we don't use CERT any longer, but a new structure SESS_CERT
8543 that holds per-session data (if available); currently, this is
8544 the peer's certificate chain and, for clients, the server's certificate
8545 and temporary key. CERT holds only those values that can have
8546 meaningful defaults in an SSL_CTX.
8549 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8550 from the internal representation. Various PKCS#7 fixes: remove some
8551 evil casts and set the enc_dig_alg field properly based on the signing
8555 *) Allow PKCS#12 password to be set from the command line or the
8556 environment. Let 'ca' get its config file name from the environment
8557 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8561 *) Allow certificate policies extension to use an IA5STRING for the
8562 organization field. This is contrary to the PKIX definition but
8563 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8567 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8568 without disallowing inline assembler and the like for non-pedantic builds.
8571 *) Support Borland C++ builder.
8572 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8577 *) SHA-1 cleanups and performance enhancements.
8578 [Andy Polyakov <appro@fy.chalmers.se>]
8580 *) Sparc v8plus assembler for the bignum library.
8581 [Andy Polyakov <appro@fy.chalmers.se>]
8583 *) Accept any -xxx and +xxx compiler options in Configure.
8586 *) Update HPUX configuration.
8589 *) Add missing sk_<type>_unshift() function to safestack.h
8590 [Ralf S. Engelschall]
8592 *) New function SSL_CTX_use_certificate_chain_file that sets the
8593 "extra_cert"s in addition to the certificate. (This makes sense
8594 only for "PEM" format files, as chains as a whole are not
8598 *) Support verify_depth from the SSL API.
8599 x509_vfy.c had what can be considered an off-by-one-error:
8600 Its depth (which was not part of the external interface)
8601 was actually counting the number of certificates in a chain;
8602 now it really counts the depth.
8605 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8606 instead of X509err, which often resulted in confusing error
8607 messages since the error codes are not globally unique
8608 (e.g. an alleged error in ssl3_accept when a certificate
8609 didn't match the private key).
8611 *) New function SSL_CTX_set_session_id_context that allows to set a default
8612 value (so that you don't need SSL_set_session_id_context for each
8613 connection using the SSL_CTX).
8616 *) OAEP decoding bug fix.
8619 *) Support INSTALL_PREFIX for package builders, as proposed by
8623 *) New Configure options "threads" and "no-threads". For systems
8624 where the proper compiler options are known (currently Solaris
8625 and Linux), "threads" is the default.
8628 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8631 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8632 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8633 such as /usr/local/bin.
8636 *) "make linux-shared" to build shared libraries.
8637 [Niels Poppe <niels@netbox.org>]
8639 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8642 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8643 extension adding in x509 utility.
8646 *) Remove NOPROTO sections and error code comments.
8649 *) Partial rewrite of the DEF file generator to now parse the ANSI
8653 *) New Configure options --prefix=DIR and --openssldir=DIR.
8656 *) Complete rewrite of the error code script(s). It is all now handled
8657 by one script at the top level which handles error code gathering,
8658 header rewriting and C source file generation. It should be much better
8659 than the old method: it now uses a modified version of Ulf's parser to
8660 read the ANSI prototypes in all header files (thus the old K&R definitions
8661 aren't needed for error creation any more) and do a better job of
8662 translating function codes into names. The old 'ASN1 error code imbedded
8663 in a comment' is no longer necessary and it doesn't use .err files which
8664 have now been deleted. Also the error code call doesn't have to appear all
8665 on one line (which resulted in some large lines...).
8668 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8671 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8672 0 (which usually indicates a closed connection), but continue reading.
8675 *) Fix some race conditions.
8678 *) Add support for CRL distribution points extension. Add Certificate
8679 Policies and CRL distribution points documentation.
8682 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8685 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8686 8 of keying material. Merlin has also confirmed interop with this fix
8687 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8688 [Merlin Hughes <merlin@baltimore.ie>]
8690 *) Fix lots of warnings.
8691 [Richard Levitte <levitte@stacken.kth.se>]
8693 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8694 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8695 [Richard Levitte <levitte@stacken.kth.se>]
8697 *) Fix problems with sizeof(long) == 8.
8698 [Andy Polyakov <appro@fy.chalmers.se>]
8700 *) Change functions to ANSI C.
8703 *) Fix typos in error codes.
8704 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8706 *) Remove defunct assembler files from Configure.
8709 *) SPARC v8 assembler BIGNUM implementation.
8710 [Andy Polyakov <appro@fy.chalmers.se>]
8712 *) Support for Certificate Policies extension: both print and set.
8713 Various additions to support the r2i method this uses.
8716 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8717 return a const string when you are expecting an allocated buffer.
8720 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8721 types DirectoryString and DisplayText.
8724 *) Add code to allow r2i extensions to access the configuration database,
8725 add an LHASH database driver and add several ctx helper functions.
8728 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8729 fail when they extended the size of a BIGNUM.
8732 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8733 support typesafe stack.
8736 *) Fix typo in SSL_[gs]et_options().
8737 [Nils Frostberg <nils@medcom.se>]
8739 *) Delete various functions and files that belonged to the (now obsolete)
8740 old X509V3 handling code.
8743 *) New Configure option "rsaref".
8746 *) Don't auto-generate pem.h.
8749 *) Introduce type-safe ASN.1 SETs.
8752 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8753 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8755 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8756 that links with OpenSSL (well at least cause lots of warnings), but fear
8757 not: the conversion is trivial, and it eliminates loads of evil casts. A
8758 few STACKed things have been converted already. Feel free to convert more.
8759 In the fullness of time, I'll do away with the STACK type altogether.
8762 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8763 specified in <certfile> by updating the entry in the index.txt file.
8764 This way one no longer has to edit the index.txt file manually for
8765 revoking a certificate. The -revoke option does the gory details now.
8766 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8768 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8769 `-text' option at all and this way the `-noout -text' combination was
8770 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8771 [Ralf S. Engelschall]
8773 *) Make sure a corresponding plain text error message exists for the
8774 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8775 verify callback function determined that a certificate was revoked.
8776 [Ralf S. Engelschall]
8778 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8779 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8780 all available cipers including rc5, which was forgotten until now.
8781 In order to let the testing shell script know which algorithms
8782 are available, a new (up to now undocumented) command
8783 "openssl list-cipher-commands" is used.
8786 *) Bugfix: s_client occasionally would sleep in select() when
8787 it should have checked SSL_pending() first.
8790 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8791 the raw DSA values prior to ASN.1 encoding.
8794 *) Tweaks to Configure
8795 [Niels Poppe <niels@netbox.org>]
8797 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8801 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8804 *) New config option to avoid instructions that are illegal on the 80386.
8805 The default code is faster, but requires at least a 486.
8808 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8809 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8810 same as SSL2_VERSION anyway.
8813 *) New "-showcerts" option for s_client.
8816 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8817 application. Various cleanups and fixes.
8820 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8821 modify error routines to work internally. Add error codes and PBE init
8822 to library startup routines.
8825 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8826 packing functions to asn1 and evp. Changed function names and error
8827 codes along the way.
8830 *) PKCS12 integration: and so it begins... First of several patches to
8831 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8832 objects to objects.h
8835 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8836 and display support for Thawte strong extranet extension.
8839 *) Add LinuxPPC support.
8840 [Jeff Dubrule <igor@pobox.org>]
8842 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8843 bn_div_words in alpha.s.
8844 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8846 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8847 OAEP isn't supported when OpenSSL is built with RSAref.
8848 [Ulf Moeller <ulf@fitug.de>]
8850 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8851 so they no longer are missing under -DNOPROTO.
8852 [Soren S. Jorvang <soren@t.dk>]
8855 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8857 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8858 doesn't work when the session is reused. Coming soon!
8861 *) Fix a security hole, that allows sessions to be reused in the wrong
8862 context thus bypassing client cert protection! All software that uses
8863 client certs and session caches in multiple contexts NEEDS PATCHING to
8864 allow session reuse! A fuller solution is in the works.
8865 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8867 *) Some more source tree cleanups (removed obsolete files
8868 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8869 permission on "config" script to be executable) and a fix for the INSTALL
8871 [Ulf Moeller <ulf@fitug.de>]
8873 *) Remove some legacy and erroneous uses of malloc, free instead of
8875 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8877 *) Make rsa_oaep_test return non-zero on error.
8878 [Ulf Moeller <ulf@fitug.de>]
8880 *) Add support for native Solaris shared libraries. Configure
8881 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8882 if someone would make that last step automatic.
8883 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8885 *) ctx_size was not built with the right compiler during "make links". Fixed.
8888 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8889 except NULL ciphers". This means the default cipher list will no longer
8890 enable NULL ciphers. They need to be specifically enabled e.g. with
8891 the string "DEFAULT:eNULL".
8894 *) Fix to RSA private encryption routines: if p < q then it would
8895 occasionally produce an invalid result. This will only happen with
8896 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8899 *) Be less restrictive and allow also `perl util/perlpath.pl
8900 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8901 because this way one can also use an interpreter named `perl5' (which is
8902 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8903 installed as `perl').
8904 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8906 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8907 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8909 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8910 advapi32.lib to Win32 build and change the pem test comparision
8911 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8912 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8913 and crypto/des/ede_cbcm_enc.c.
8916 *) DES quad checksum was broken on big-endian architectures. Fixed.
8919 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8920 Win32 test batch file so it (might) work again. The Win32 test batch file
8921 is horrible: I feel ill....
8924 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8925 in e_os.h. Audit of header files to check ANSI and non ANSI
8926 sections: 10 functions were absent from non ANSI section and not exported
8927 from Windows DLLs. Fixed up libeay.num for new functions.
8930 *) Make `openssl version' output lines consistent.
8931 [Ralf S. Engelschall]
8933 *) Fix Win32 symbol export lists for BIO functions: Added
8934 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8935 to ms/libeay{16,32}.def.
8936 [Ralf S. Engelschall]
8938 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8939 fine under Unix and passes some trivial tests I've now added. But the
8940 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8941 added to make sure no one expects that this stuff really works in the
8942 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8943 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8945 [Ralf S. Engelschall]
8947 *) Fix the generation of two part addresses in perl.
8948 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8950 *) Add config entry for Linux on MIPS.
8951 [John Tobey <jtobey@channel1.com>]
8953 *) Make links whenever Configure is run, unless we are on Windoze.
8956 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8957 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8961 *) Add a useful kludge to allow package maintainers to specify compiler and
8962 other platforms details on the command line without having to patch the
8963 Configure script everytime: One now can use ``perl Configure
8964 <id>:<details>'', i.e. platform ids are allowed to have details appended
8965 to them (seperated by colons). This is treated as there would be a static
8966 pre-configured entry in Configure's %table under key <id> with value
8967 <details> and ``perl Configure <id>'' is called. So, when you want to
8968 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8969 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8970 now, which overrides the FreeBSD-elf entry on-the-fly.
8971 [Ralf S. Engelschall]
8973 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8976 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8977 on the `perl Configure ...' command line. This way one can compile
8978 OpenSSL libraries with Position Independent Code (PIC) which is needed
8979 for linking it into DSOs.
8980 [Ralf S. Engelschall]
8982 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8986 *) Cleaned up the LICENSE document: The official contact for any license
8987 questions now is the OpenSSL core team under openssl-core@openssl.org.
8988 And add a paragraph about the dual-license situation to make sure people
8989 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8990 to the OpenSSL toolkit.
8991 [Ralf S. Engelschall]
8993 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8994 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8995 Additonally cleaned up the `make links' target: Remove unnecessary
8996 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8997 to speed processing and no longer clutter the display with confusing
8998 stuff. Instead only the actually done links are displayed.
8999 [Ralf S. Engelschall]
9001 *) Permit null encryption ciphersuites, used for authentication only. It used
9002 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9003 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9007 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9008 signed attributes when verifying signatures (this would break them),
9009 the detached data encoding was wrong and public keys obtained using
9010 X509_get_pubkey() weren't freed.
9013 *) Add text documentation for the BUFFER functions. Also added a work around
9014 to a Win95 console bug. This was triggered by the password read stuff: the
9015 last character typed gets carried over to the next fread(). If you were
9016 generating a new cert request using 'req' for example then the last
9017 character of the passphrase would be CR which would then enter the first
9021 *) Added the new `Includes OpenSSL Cryptography Software' button as
9022 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9023 button and can be used by applications based on OpenSSL to show the
9024 relationship to the OpenSSL project.
9025 [Ralf S. Engelschall]
9027 *) Remove confusing variables in function signatures in files
9028 ssl/ssl_lib.c and ssl/ssl.h.
9029 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9031 *) Don't install bss_file.c under PREFIX/include/
9032 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9034 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9035 functions that return function pointers and has support for NT specific
9036 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9037 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9038 unsigned to signed types: this was killing the Win32 compile.
9041 *) Add new certificate file to stack functions,
9042 SSL_add_dir_cert_subjects_to_stack() and
9043 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9044 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9045 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9046 This means that Apache-SSL and similar packages don't have to mess around
9047 to add as many CAs as they want to the preferred list.
9050 *) Experiment with doxygen documentation. Currently only partially applied to
9052 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9053 openssl.doxy as the configuration file.
9056 *) Get rid of remaining C++-style comments which strict C compilers hate.
9057 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9059 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9060 compiled in by default: it has problems with large keys.
9063 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9064 DH private keys and/or callback functions which directly correspond to
9065 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9066 is needed for applications which have to configure certificates on a
9067 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9069 For the RSA certificate situation is makes no difference, but
9070 for the DSA certificate situation this fixes the "no shared cipher"
9071 problem where the OpenSSL cipher selection procedure failed because the
9072 temporary keys were not overtaken from the context and the API provided
9073 no way to reconfigure them.
9074 The new functions now let applications reconfigure the stuff and they
9075 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9076 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9077 non-public-API function ssl_cert_instantiate() is used as a helper
9078 function and also to reduce code redundancy inside ssl_rsa.c.
9079 [Ralf S. Engelschall]
9081 *) Move s_server -dcert and -dkey options out of the undocumented feature
9082 area because they are useful for the DSA situation and should be
9083 recognized by the users.
9084 [Ralf S. Engelschall]
9086 *) Fix the cipher decision scheme for export ciphers: the export bits are
9087 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9088 SSL_EXP_MASK. So, the original variable has to be used instead of the
9089 already masked variable.
9090 [Richard Levitte <levitte@stacken.kth.se>]
9092 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9093 [Richard Levitte <levitte@stacken.kth.se>]
9095 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9096 from `int' to `unsigned int' because it's a length and initialized by
9097 EVP_DigestFinal() which expects an `unsigned int *'.
9098 [Richard Levitte <levitte@stacken.kth.se>]
9100 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9101 script. Instead use the usual Shell->Perl transition trick.
9102 [Ralf S. Engelschall]
9104 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9105 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9106 -noout -modulus' as it's already the case for `openssl rsa -noout
9107 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9108 currently the public key is printed (a decision which was already done by
9109 `openssl dsa -modulus' in the past) which serves a similar purpose.
9110 Additionally the NO_RSA no longer completely removes the whole -modulus
9111 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9113 [Ralf S. Engelschall]
9115 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9116 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9117 [Arne Ansper <arne@ats.cyber.ee>]
9119 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9120 to be added. Now both 'req' and 'ca' can use new objects defined in the
9124 *) Add cool BIO that does syslog (or event log on NT).
9125 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9127 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9128 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9129 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9130 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9133 *) Add preliminary config info for new extension code.
9136 *) Make RSA_NO_PADDING really use no padding.
9137 [Ulf Moeller <ulf@fitug.de>]
9139 *) Generate errors when private/public key check is done.
9142 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9143 for some CRL extensions and new objects added.
9146 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9147 key usage extension and fuller support for authority key id.
9150 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9151 padding method for RSA, which is recommended for new applications in PKCS
9152 #1 v2.0 (RFC 2437, October 1998).
9153 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9154 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9155 against Bleichbacher's attack on RSA.
9156 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9159 *) Updates to the new SSL compression code
9160 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9162 *) Fix so that the version number in the master secret, when passed
9163 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9164 (because the server will not accept higher), that the version number
9165 is 0x03,0x01, not 0x03,0x00
9166 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9168 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9169 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9170 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9173 *) Support for RAW extensions where an arbitrary extension can be
9174 created by including its DER encoding. See apps/openssl.cnf for
9178 *) Make sure latest Perl versions don't interpret some generated C array
9179 code as Perl array code in the crypto/err/err_genc.pl script.
9180 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9182 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9183 not many people have the assembler. Various Win32 compilation fixes and
9184 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9188 *) Modify configure script 'Configure' to automatically create crypto/date.h
9189 file under Win32 and also build pem.h from pem.org. New script
9190 util/mkfiles.pl to create the MINFO file on environments that can't do a
9191 'make files': perl util/mkfiles.pl >MINFO should work.
9194 *) Major rework of DES function declarations, in the pursuit of correctness
9195 and purity. As a result, many evil casts evaporated, and some weirdness,
9196 too. You may find this causes warnings in your code. Zapping your evil
9197 casts will probably fix them. Mostly.
9200 *) Fix for a typo in asn1.h. Bug fix to object creation script
9201 obj_dat.pl. It considered a zero in an object definition to mean
9202 "end of object": none of the objects in objects.h have any zeros
9203 so it wasn't spotted.
9204 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9206 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9207 Masking (CBCM). In the absence of test vectors, the best I have been able
9208 to do is check that the decrypt undoes the encrypt, so far. Send me test
9209 vectors if you have them.
9212 *) Correct calculation of key length for export ciphers (too much space was
9213 allocated for null ciphers). This has not been tested!
9216 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9217 message is now correct (it understands "crypto" and "ssl" on its
9218 command line). There is also now an "update" option. This will update
9219 the util/ssleay.num and util/libeay.num files with any new functions.
9221 perl util/mkdef.pl crypto ssl update
9222 it will update them.
9225 *) Overhauled the Perl interface (perl/*):
9226 - ported BN stuff to OpenSSL's different BN library
9227 - made the perl/ source tree CVS-aware
9228 - renamed the package from SSLeay to OpenSSL (the files still contain
9229 their history because I've copied them in the repository)
9230 - removed obsolete files (the test scripts will be replaced
9231 by better Test::Harness variants in the future)
9232 [Ralf S. Engelschall]
9234 *) First cut for a very conservative source tree cleanup:
9235 1. merge various obsolete readme texts into doc/ssleay.txt
9236 where we collect the old documents and readme texts.
9237 2. remove the first part of files where I'm already sure that we no
9238 longer need them because of three reasons: either they are just temporary
9239 files which were left by Eric or they are preserved original files where
9240 I've verified that the diff is also available in the CVS via "cvs diff
9241 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9242 the crypto/md/ stuff).
9243 [Ralf S. Engelschall]
9245 *) More extension code. Incomplete support for subject and issuer alt
9246 name, issuer and authority key id. Change the i2v function parameters
9247 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9248 what that's for :-) Fix to ASN1 macro which messed up
9249 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9252 *) Preliminary support for ENUMERATED type. This is largely copied from the
9256 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9257 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9259 *) Make sure `make rehash' target really finds the `openssl' program.
9260 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9262 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9263 like to hear about it if this slows down other processors.
9266 *) Add CygWin32 platform information to Configure script.
9267 [Alan Batie <batie@aahz.jf.intel.com>]
9269 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9270 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9272 *) New program nseq to manipulate netscape certificate sequences
9275 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9279 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9280 but the BN code had some problems that would cause failures when
9281 doing certificate verification and some other functions.
9282 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9284 *) Add ASN1 and PEM code to support netscape certificate sequences.
9287 *) Add ASN1 and PEM code to support netscape certificate sequences.
9290 *) Add several PKIX and private extended key usage OIDs.
9293 *) Modify the 'ca' program to handle the new extension code. Modify
9294 openssl.cnf for new extension format, add comments.
9297 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9298 and add a sample to openssl.cnf so req -x509 now adds appropriate
9302 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9303 error code, add initial support to X509_print() and x509 application.
9306 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9307 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9308 stuff is currently isolated and isn't even compiled yet.
9311 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9312 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9313 Removed the versions check from X509 routines when loading extensions:
9314 this allows certain broken certificates that don't set the version
9315 properly to be processed.
9318 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9319 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9320 can still be regenerated with "make depend".
9323 *) Spelling mistake in C version of CAST-128.
9324 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9326 *) Changes to the error generation code. The perl script err-code.pl
9327 now reads in the old error codes and retains the old numbers, only
9328 adding new ones if necessary. It also only changes the .err files if new
9329 codes are added. The makefiles have been modified to only insert errors
9330 when needed (to avoid needlessly modifying header files). This is done
9331 by only inserting errors if the .err file is newer than the auto generated
9332 C file. To rebuild all the error codes from scratch (the old behaviour)
9333 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9334 or delete all the .err files.
9337 *) CAST-128 was incorrectly implemented for short keys. The C version has
9338 been fixed, but is untested. The assembler versions are also fixed, but
9339 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9340 to regenerate it if needed.
9341 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9342 Hagino <itojun@kame.net>]
9344 *) File was opened incorrectly in randfile.c.
9345 [Ulf Möller <ulf@fitug.de>]
9347 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9348 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9349 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9350 al: it's just almost always a UTCTime. Note this patch adds new error
9351 codes so do a "make errors" if there are problems.
9354 *) Correct Linux 1 recognition in config.
9355 [Ulf Möller <ulf@fitug.de>]
9357 *) Remove pointless MD5 hash when using DSA keys in ca.
9358 [Anonymous <nobody@replay.com>]
9360 *) Generate an error if given an empty string as a cert directory. Also
9361 generate an error if handed NULL (previously returned 0 to indicate an
9362 error, but didn't set one).
9363 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9365 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9368 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9369 parameters. This was causing a warning which killed off the Win32 compile.
9372 *) Remove C++ style comments from crypto/bn/bn_local.h.
9373 [Neil Costigan <neil.costigan@celocom.com>]
9375 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9376 based on a text string, looking up short and long names and finally
9377 "dot" format. The "dot" format stuff didn't work. Added new function
9378 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9379 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9380 OID is not part of the table.
9383 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9384 X509_LOOKUP_by_alias().
9387 *) Sort openssl functions by name.
9390 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9391 encryption from sample DSA keys (in case anyone is interested the password
9395 *) Make _all_ *_free functions accept a NULL pointer.
9396 [Frans Heymans <fheymans@isaserver.be>]
9398 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9400 [Anonymous <nobody@replay.com>]
9402 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9403 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9405 *) Don't blow it for numeric -newkey arguments to apps/req.
9406 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9408 *) Temp key "for export" tests were wrong in s3_srvr.c.
9409 [Anonymous <nobody@replay.com>]
9411 *) Add prototype for temp key callback functions
9412 SSL_CTX_set_tmp_{rsa,dh}_callback().
9415 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9416 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9419 *) X509_name_add_entry() freed the wrong thing after an error.
9420 [Arne Ansper <arne@ats.cyber.ee>]
9422 *) rsa_eay.c would attempt to free a NULL context.
9423 [Arne Ansper <arne@ats.cyber.ee>]
9425 *) BIO_s_socket() had a broken should_retry() on Windoze.
9426 [Arne Ansper <arne@ats.cyber.ee>]
9428 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9429 [Arne Ansper <arne@ats.cyber.ee>]
9431 *) Make sure the already existing X509_STORE->depth variable is initialized
9432 in X509_STORE_new(), but document the fact that this variable is still
9433 unused in the certificate verification process.
9434 [Ralf S. Engelschall]
9436 *) Fix the various library and apps files to free up pkeys obtained from
9437 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9440 *) Fix reference counting in X509_PUBKEY_get(). This makes
9441 demos/maurice/example2.c work, amongst others, probably.
9442 [Steve Henson and Ben Laurie]
9444 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9445 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9446 are no longer created. This way we have a single and consistent command
9447 line interface `openssl <command>', similar to `cvs <command>'.
9448 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9450 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9451 BIT STRING wrapper always have zero unused bits.
9454 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9457 *) Make the top-level INSTALL documentation easier to understand.
9460 *) Makefiles updated to exit if an error occurs in a sub-directory
9461 make (including if user presses ^C) [Paul Sutton]
9463 *) Make Montgomery context stuff explicit in RSA data structure.
9466 *) Fix build order of pem and err to allow for generated pem.h.
9469 *) Fix renumbering bug in X509_NAME_delete_entry().
9472 *) Enhanced the err-ins.pl script so it makes the error library number
9473 global and can add a library name. This is needed for external ASN1 and
9474 other error libraries.
9477 *) Fixed sk_insert which never worked properly.
9480 *) Fix ASN1 macros so they can handle indefinite length construted
9481 EXPLICIT tags. Some non standard certificates use these: they can now
9485 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9486 into a single doc/ssleay.txt bundle. This way the information is still
9487 preserved but no longer messes up this directory. Now it's new room for
9488 the new set of documenation files.
9489 [Ralf S. Engelschall]
9491 *) SETs were incorrectly DER encoded. This was a major pain, because they
9492 shared code with SEQUENCEs, which aren't coded the same. This means that
9493 almost everything to do with SETs or SEQUENCEs has either changed name or
9494 number of arguments.
9495 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9497 *) Fix test data to work with the above.
9500 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9501 was already fixed by Eric for 0.9.1 it seems.
9502 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9504 *) Autodetect FreeBSD3.
9507 *) Fix various bugs in Configure. This affects the following platforms:
9511 unixware-2.0-pentium
9515 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9516 before they are needed.
9519 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9523 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9525 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9526 changed SSLeay to OpenSSL in version strings.
9527 [Ralf S. Engelschall]
9529 *) Some fixups to the top-level documents.
9532 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9533 because the symlink to include/ was missing.
9534 [Ralf S. Engelschall]
9536 *) Incorporated the popular no-RSA/DSA-only patches
9537 which allow to compile a RSA-free SSLeay.
9538 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9540 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9541 when "ssleay" is still not found.
9542 [Ralf S. Engelschall]
9544 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9545 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9547 *) Updated the README file.
9548 [Ralf S. Engelschall]
9550 *) Added various .cvsignore files in the CVS repository subdirs
9551 to make a "cvs update" really silent.
9552 [Ralf S. Engelschall]
9554 *) Recompiled the error-definition header files and added
9555 missing symbols to the Win32 linker tables.
9556 [Ralf S. Engelschall]
9558 *) Cleaned up the top-level documents;
9559 o new files: CHANGES and LICENSE
9560 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9561 o merged COPYRIGHT into LICENSE
9562 o removed obsolete TODO file
9563 o renamed MICROSOFT to INSTALL.W32
9564 [Ralf S. Engelschall]
9566 *) Removed dummy files from the 0.9.1b source tree:
9567 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9568 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9569 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9570 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9571 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9572 [Ralf S. Engelschall]
9574 *) Added various platform portability fixes.
9577 *) The Genesis of the OpenSSL rpject:
9578 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9579 Young and Tim J. Hudson created while they were working for C2Net until
9581 [The OpenSSL Project]
9584 Changes between 0.9.0b and 0.9.1b [not released]
9586 *) Updated a few CA certificates under certs/
9589 *) Changed some BIGNUM api stuff.
9592 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9593 DGUX x86, Linux Alpha, etc.
9596 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9597 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9601 *) Add -strparse option to asn1pars program which parses nested
9603 [Dr Stephen Henson <shenson@bigfoot.com>]
9605 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9608 *) DSA fix for "ca" program.
9611 *) Added "-genkey" option to "dsaparam" program.
9614 *) Added RIPE MD160 (rmd160) message digest.
9617 *) Added -a (all) option to "ssleay version" command.
9620 *) Added PLATFORM define which is the id given to Configure.
9623 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9626 *) Extended the ASN.1 parser routines.
9629 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9632 *) Added a BN_CTX to the BN library.
9635 *) Fixed the weak key values in DES library
9638 *) Changed API in EVP library for cipher aliases.
9641 *) Added support for RC2/64bit cipher.
9644 *) Converted the lhash library to the crypto/mem.c functions.
9647 *) Added more recognized ASN.1 object ids.
9650 *) Added more RSA padding checks for SSL/TLS.
9653 *) Added BIO proxy/filter functionality.
9656 *) Added extra_certs to SSL_CTX which can be used
9657 send extra CA certificates to the client in the CA cert chain sending
9658 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9661 *) Now Fortezza is denied in the authentication phase because
9662 this is key exchange mechanism is not supported by SSLeay at all.
9665 *) Additional PKCS1 checks.
9668 *) Support the string "TLSv1" for all TLS v1 ciphers.
9671 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9672 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9675 *) Fixed a few memory leaks.
9678 *) Fixed various code and comment typos.
9681 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9682 bytes sent in the client random.
9683 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob