5 Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
7 *) Improve forward-security support: add functions
9 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
10 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
12 for use by SSL/TLS servers; the callback function will be called whenever a
13 new session is created, and gets to decide whether the session may be
14 cached to make it resumable (return 0) or not (return 1). (As by the
15 SSL/TLS protocol specifications, the session_id sent by the server will be
16 empty to indicate that the session is not resumable; also, the server will
17 not generate RFC 4507 (RFC 5077) session tickets.)
19 A simple reasonable callback implementation is to return is_forward_secure.
20 This parameter will be set to 1 or 0 depending on the ciphersuite selected
21 by the SSL/TLS server library, indicating whether it can provide forward
23 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
25 *) Add Next Protocol Negotiation,
26 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
27 disabled with a no-npn flag to config or Configure. Code donated
29 [Adam Langley <agl@google.com> and Ben Laurie]
31 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
32 all platforms. Move ssize_t definition from e_os.h to the public
33 header file e_os2.h as it now appears in public header file cms.h
36 *) New function OPENSSL_gmtime_diff to find the difference in days
37 and seconds between two tm structures. This will be used to provide
38 additional functionality for ASN1_TIME.
41 *) New -sigopt option to the ca, req and x509 utilities. Additional
42 signature parameters can be passed using this option and in
46 *) Add RSA PSS signing function. This will generate and set the
47 appropriate AlgorithmIdentifiers for PSS based on those in the
48 corresponding EVP_MD_CTX structure. No application support yet.
51 *) Support for companion algorithm specific ASN1 signing routines.
52 New function ASN1_item_sign_ctx() signs a pre-initialised
53 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
54 the appropriate parameters.
57 *) Add new algorithm specific ASN1 verification initialisation function
58 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
59 handling will be the same no matter what EVP_PKEY_METHOD is used.
60 Add a PSS handler to support verification of PSS signatures: checked
61 against a number of sample certificates.
64 *) Add signature printing for PSS. Add PSS OIDs.
65 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
67 *) Add algorithm specific signature printing. An individual ASN1 method
68 can now print out signatures instead of the standard hex dump.
70 More complex signatures (e.g. PSS) can print out more meaningful
71 information. Include DSA version that prints out the signature
75 *) Add -trusted_first option which attempts to find certificates in the
76 trusted store even if an untrusted chain is also supplied.
79 *) Initial experimental support for explicitly trusted non-root CAs.
80 OpenSSL still tries to build a complete chain to a root but if an
81 intermediate CA has a trust setting included that is used. The first
82 setting is used: whether to trust or reject.
85 *) New -verify_name option in command line utilities to set verification
89 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
90 Add CMAC pkey methods.
93 *) Experiemental regnegotiation in s_server -www mode. If the client
94 browses /reneg connection is renegotiated. If /renegcert it is
95 renegotiated requesting a certificate.
98 *) Add an "external" session cache for debugging purposes to s_server. This
99 should help trace issues which normally are only apparent in deployed
100 multi-process servers.
103 *) Experiemental password based recipient info support for CMS library:
104 implementing RFC3211.
107 *) Split password based encryption into PBES2 and PBKDF2 functions. This
108 neatly separates the code into cipher and PBE sections and is required
109 for some algorithms that split PBES2 into separate pieces (such as
113 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
114 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
115 BIO_set_cipher() and some obscure PEM functions were changed so they
116 can now return an error. The RAND changes required a change to the
117 RAND_METHOD structure.
120 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
121 a gcc attribute to warn if the result of a function is ignored. This
122 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
123 whose return value is often ignored.
126 Changes between 1.0.0b and 1.0.1 [xx XXX xxxx]
128 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
131 *) Add EC_GFp_nistp224_method(), a 64-bit optimized implementation for
132 elliptic curve NIST-P224 with constant-time single point multiplication on
133 typical inputs. EC_GROUP_new_by_curve_name() will automatically use this
134 (while EC_GROUP_new_curve_GFp() currently won't and prefers the more
135 flexible implementations).
137 The implementation requires support for the nonstandard type __uint128_t,
138 and so is disabled by default. To include this in your build of OpenSSL,
139 use -DEC_NISTP224_64_GCC_128 on the Configure (or config) command line,
140 and run "make depend" (or "make update").
141 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
143 *) Permit abbreviated handshakes when renegotiating using the function
144 SSL_renegotiate_abbreviated().
145 [Robin Seggelmann <seggelmann@fh-muenster.de>]
147 *) Add call to ENGINE_register_all_complete() to
148 ENGINE_load_builtin_engines(), so some implementations get used
149 automatically instead of needing explicit application support.
152 *) Add support for TLS key exporter as described in RFC5705.
153 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
155 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
156 a few changes are required:
158 Add SSL_OP_NO_TLSv1_1 flag.
160 Update version checking logic to handle version 1.1.
161 Add explicit IV handling (ported from DTLS code).
162 Add command line options to s_client/s_server.
165 Changes between 1.0.0a and 1.0.0b [xx XXX xxxx]
167 *) Fix extension code to avoid race conditions which can result in a buffer
168 overrun vulnerability: resumed sessions must not be modified as they can
169 be shared by multiple threads. CVE-2010-3864
171 *) Fix WIN32 build system to correctly link an ENGINE directory into
175 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
177 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
179 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
181 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
183 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
184 context. The operation can be customised via the ctrl mechanism in
185 case ENGINEs want to include additional functionality.
188 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
191 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
192 output hashes compatible with older versions of OpenSSL.
193 [Willy Weisz <weisz@vcpc.univie.ac.at>]
195 *) Fix compression algorithm handling: if resuming a session use the
196 compression algorithm of the resumed session instead of determining
197 it from client hello again. Don't allow server to change algorithm.
200 *) Add load_crls() function to apps tidying load_certs() too. Add option
201 to verify utility to allow additional CRLs to be included.
204 *) Update OCSP request code to permit adding custom headers to the request:
205 some responders need this.
208 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
210 [Julia Lawall <julia@diku.dk>]
212 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
213 needlessly dereferenced structures, used obsolete functions and
214 didn't handle all updated verify codes correctly.
217 *) Disable MD2 in the default configuration.
220 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
221 indicate the initial BIO being pushed or popped. This makes it possible
222 to determine whether the BIO is the one explicitly called or as a result
223 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
224 it handles reference counts correctly and doesn't zero out the I/O bio
225 when it is not being explicitly popped. WARNING: applications which
226 included workarounds for the old buggy behaviour will need to be modified
227 or they could free up already freed BIOs.
230 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
231 renaming to all platforms (within the 0.9.8 branch, this was
232 done conditionally on Netware platforms to avoid a name clash).
233 [Guenter <lists@gknw.net>]
235 *) Add ECDHE and PSK support to DTLS.
236 [Michael Tuexen <tuexen@fh-muenster.de>]
238 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
242 *) Add "missing" function EVP_MD_flags() (without this the only way to
243 retrieve a digest flags is by accessing the structure directly. Update
244 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
245 or cipher is registered as in the "from" argument. Print out all
246 registered digests in the dgst usage message instead of manually
247 attempting to work them out.
250 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
251 this allows the use of compression and extensions. Change default cipher
252 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
253 by default unless an application cipher string requests it.
256 *) Alter match criteria in PKCS12_parse(). It used to try to use local
257 key ids to find matching certificates and keys but some PKCS#12 files
258 don't follow the (somewhat unwritten) rules and this strategy fails.
259 Now just gather all certificates together and the first private key
260 then look for the first certificate that matches the key.
263 *) Support use of registered digest and cipher names for dgst and cipher
264 commands instead of having to add each one as a special case. So now
271 openssl dgst -sha256 foo
273 and this works for ENGINE based algorithms too.
277 *) Update Gost ENGINE to support parameter files.
278 [Victor B. Wagner <vitus@cryptocom.ru>]
280 *) Support GeneralizedTime in ca utility.
281 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
283 *) Enhance the hash format used for certificate directory links. The new
284 form uses the canonical encoding (meaning equivalent names will work
285 even if they aren't identical) and uses SHA1 instead of MD5. This form
286 is incompatible with the older format and as a result c_rehash should
287 be used to rebuild symbolic links.
290 *) Make PKCS#8 the default write format for private keys, replacing the
291 traditional format. This form is standardised, more secure and doesn't
292 include an implicit MD5 dependency.
295 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
296 committed to OpenSSL should pass this lot as a minimum.
299 *) Add session ticket override functionality for use by EAP-FAST.
300 [Jouni Malinen <j@w1.fi>]
302 *) Modify HMAC functions to return a value. Since these can be implemented
303 in an ENGINE errors can occur.
306 *) Type-checked OBJ_bsearch_ex.
309 *) Type-checked OBJ_bsearch. Also some constification necessitated
310 by type-checking. Still to come: TXT_DB, bsearch(?),
311 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
315 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
316 seconds to a tm structure directly, instead of going through OS
317 specific date routines. This avoids any issues with OS routines such
318 as the year 2038 bug. New *_adj() functions for ASN1 time structures
319 and X509_time_adj_ex() to cover the extended range. The existing
320 X509_time_adj() is still usable and will no longer have any date issues.
323 *) Delta CRL support. New use deltas option which will attempt to locate
324 and search any appropriate delta CRLs available.
326 This work was sponsored by Google.
329 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
330 code and add additional score elements. Validate alternate CRL paths
331 as part of the CRL checking and indicate a new error "CRL path validation
332 error" in this case. Applications wanting additional details can use
333 the verify callback and check the new "parent" field. If this is not
334 NULL CRL path validation is taking place. Existing applications wont
335 see this because it requires extended CRL support which is off by
338 This work was sponsored by Google.
341 *) Support for freshest CRL extension.
343 This work was sponsored by Google.
346 *) Initial indirect CRL support. Currently only supported in the CRLs
347 passed directly and not via lookup. Process certificate issuer
348 CRL entry extension and lookup CRL entries by bother issuer name
349 and serial number. Check and process CRL issuer entry in IDP extension.
351 This work was sponsored by Google.
354 *) Add support for distinct certificate and CRL paths. The CRL issuer
355 certificate is validated separately in this case. Only enabled if
356 an extended CRL support flag is set: this flag will enable additional
357 CRL functionality in future.
359 This work was sponsored by Google.
362 *) Add support for policy mappings extension.
364 This work was sponsored by Google.
367 *) Fixes to pathlength constraint, self issued certificate handling,
368 policy processing to align with RFC3280 and PKITS tests.
370 This work was sponsored by Google.
373 *) Support for name constraints certificate extension. DN, email, DNS
374 and URI types are currently supported.
376 This work was sponsored by Google.
379 *) To cater for systems that provide a pointer-based thread ID rather
380 than numeric, deprecate the current numeric thread ID mechanism and
381 replace it with a structure and associated callback type. This
382 mechanism allows a numeric "hash" to be extracted from a thread ID in
383 either case, and on platforms where pointers are larger than 'long',
384 mixing is done to help ensure the numeric 'hash' is usable even if it
385 can't be guaranteed unique. The default mechanism is to use "&errno"
386 as a pointer-based thread ID to distinguish between threads.
388 Applications that want to provide their own thread IDs should now use
389 CRYPTO_THREADID_set_callback() to register a callback that will call
390 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
392 Note that ERR_remove_state() is now deprecated, because it is tied
393 to the assumption that thread IDs are numeric. ERR_remove_state(0)
394 to free the current thread's error state should be replaced by
395 ERR_remove_thread_state(NULL).
397 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
398 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
399 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
400 application was previously providing a numeric thread callback that
401 was inappropriate for distinguishing threads, then uniqueness might
402 have been obtained with &errno that happened immediately in the
403 intermediate development versions of OpenSSL; this is no longer the
404 case, the numeric thread callback will now override the automatic use
406 [Geoff Thorpe, with help from Bodo Moeller]
408 *) Initial support for different CRL issuing certificates. This covers a
409 simple case where the self issued certificates in the chain exist and
410 the real CRL issuer is higher in the existing chain.
412 This work was sponsored by Google.
415 *) Removed effectively defunct crypto/store from the build.
418 *) Revamp of STACK to provide stronger type-checking. Still to come:
419 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
420 ASN1_STRING, CONF_VALUE.
423 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
424 RAM on SSL connections. This option can save about 34k per idle SSL.
427 *) Revamp of LHASH to provide stronger type-checking. Still to come:
428 STACK, TXT_DB, bsearch, qsort.
431 *) Initial support for Cryptographic Message Syntax (aka CMS) based
432 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
433 support for data, signedData, compressedData, digestedData and
434 encryptedData, envelopedData types included. Scripts to check against
435 RFC4134 examples draft and interop and consistency checks of many
436 content types and variants.
439 *) Add options to enc utility to support use of zlib compression BIO.
442 *) Extend mk1mf to support importing of options and assembly language
443 files from Configure script, currently only included in VC-WIN32.
444 The assembly language rules can now optionally generate the source
445 files from the associated perl scripts.
448 *) Implement remaining functionality needed to support GOST ciphersuites.
449 Interop testing has been performed using CryptoPro implementations.
450 [Victor B. Wagner <vitus@cryptocom.ru>]
452 *) s390x assembler pack.
455 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
459 *) Implement Opaque PRF Input TLS extension as specified in
460 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
461 official specification yet and no extension type assignment by
462 IANA exists, this extension (for now) will have to be explicitly
463 enabled when building OpenSSL by providing the extension number
464 to use. For example, specify an option
466 -DTLSEXT_TYPE_opaque_prf_input=0x9527
468 to the "config" or "Configure" script to enable the extension,
469 assuming extension number 0x9527 (which is a completely arbitrary
470 and unofficial assignment based on the MD5 hash of the Internet
471 Draft). Note that by doing so, you potentially lose
472 interoperability with other TLS implementations since these might
473 be using the same extension number for other purposes.
475 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
476 opaque PRF input value to use in the handshake. This will create
477 an interal copy of the length-'len' string at 'src', and will
478 return non-zero for success.
480 To get more control and flexibility, provide a callback function
483 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
484 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
488 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
491 Callback function 'cb' will be called in handshakes, and is
492 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
493 Argument 'arg' is for application purposes (the value as given to
494 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
495 be provided to the callback function). The callback function
496 has to return non-zero to report success: usually 1 to use opaque
497 PRF input just if possible, or 2 to enforce use of the opaque PRF
498 input. In the latter case, the library will abort the handshake
499 if opaque PRF input is not successfully negotiated.
501 Arguments 'peerinput' and 'len' given to the callback function
502 will always be NULL and 0 in the case of a client. A server will
503 see the client's opaque PRF input through these variables if
504 available (NULL and 0 otherwise). Note that if the server
505 provides an opaque PRF input, the length must be the same as the
506 length of the client's opaque PRF input.
508 Note that the callback function will only be called when creating
509 a new session (session resumption can resume whatever was
510 previously negotiated), and will not be called in SSL 2.0
511 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
512 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
513 for applications that need to enforce opaque PRF input.
517 *) Update ssl code to support digests other than SHA1+MD5 for handshake
520 [Victor B. Wagner <vitus@cryptocom.ru>]
522 *) Add RFC4507 support to OpenSSL. This includes the corrections in
523 RFC4507bis. The encrypted ticket format is an encrypted encoded
524 SSL_SESSION structure, that way new session features are automatically
527 If a client application caches session in an SSL_SESSION structure
528 support is transparent because tickets are now stored in the encoded
531 The SSL_CTX structure automatically generates keys for ticket
532 protection in servers so again support should be possible
533 with no application modification.
535 If a client or server wishes to disable RFC4507 support then the option
536 SSL_OP_NO_TICKET can be set.
538 Add a TLS extension debugging callback to allow the contents of any client
539 or server extensions to be examined.
541 This work was sponsored by Google.
544 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
545 OpenSSL should now compile cleanly on gcc 4.2
546 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
548 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
549 support including streaming MAC support: this is required for GOST
551 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
553 *) Add option -stream to use PKCS#7 streaming in smime utility. New
554 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
555 to output in BER and PEM format.
558 *) Experimental support for use of HMAC via EVP_PKEY interface. This
559 allows HMAC to be handled via the EVP_DigestSign*() interface. The
560 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
561 ENGINE support for HMAC keys which are unextractable. New -mac and
562 -macopt options to dgst utility.
565 *) New option -sigopt to dgst utility. Update dgst to use
566 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
567 alternative signing paramaters such as X9.31 or PSS in the dgst
571 *) Change ssl_cipher_apply_rule(), the internal function that does
572 the work each time a ciphersuite string requests enabling
573 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
574 removing ("!foo+bar") a class of ciphersuites: Now it maintains
575 the order of disabled ciphersuites such that those ciphersuites
576 that most recently went from enabled to disabled not only stay
577 in order with respect to each other, but also have higher priority
578 than other disabled ciphersuites the next time ciphersuites are
581 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
582 the same ciphersuites as with "HIGH" alone, but in a specific
583 order where the PSK ciphersuites come first (since they are the
584 most recently disabled ciphersuites when "HIGH" is parsed).
586 Also, change ssl_create_cipher_list() (using this new
587 funcionality) such that between otherwise identical
588 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
592 *) Change ssl_create_cipher_list() so that it automatically
593 arranges the ciphersuites in reasonable order before starting
594 to process the rule string. Thus, the definition for "DEFAULT"
595 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
596 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
597 This makes it much easier to arrive at a reasonable default order
598 in applications for which anonymous ciphers are OK (meaning
599 that you can't actually use DEFAULT).
600 [Bodo Moeller; suggested by Victor Duchovni]
602 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
603 processing) into multiple integers instead of setting
604 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
605 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
606 (These masks as well as the individual bit definitions are hidden
607 away into the non-exported interface ssl/ssl_locl.h, so this
608 change to the definition of the SSL_CIPHER structure shouldn't
609 affect applications.) This give us more bits for each of these
610 categories, so there is no longer a need to coagulate AES128 and
611 AES256 into a single algorithm bit, and to coagulate Camellia128
612 and Camellia256 into a single algorithm bit, which has led to all
615 Thus, among other things, the kludge introduced in 0.9.7m and
616 0.9.8e for masking out AES256 independently of AES128 or masking
617 out Camellia256 independently of AES256 is not needed here in 0.9.9.
619 With the change, we also introduce new ciphersuite aliases that
620 so far were missing: "AES128", "AES256", "CAMELLIA128", and
624 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
625 Use the leftmost N bytes of the signature input if the input is
626 larger than the prime q (with N being the size in bytes of q).
629 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
630 it yet and it is largely untested.
633 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
636 *) Initial incomplete changes to avoid need for function casts in OpenSSL
637 some compilers (gcc 4.2 and later) reject their use. Safestack is
638 reimplemented. Update ASN1 to avoid use of legacy functions.
641 *) Win32/64 targets are linked with Winsock2.
644 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
645 to external functions. This can be used to increase CRL handling
646 efficiency especially when CRLs are very large by (for example) storing
647 the CRL revoked certificates in a database.
650 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
651 new CRLs added to a directory can be used. New command line option
652 -verify_return_error to s_client and s_server. This causes real errors
653 to be returned by the verify callback instead of carrying on no matter
654 what. This reflects the way a "real world" verify callback would behave.
657 *) GOST engine, supporting several GOST algorithms and public key formats.
658 Kindly donated by Cryptocom.
661 *) Partial support for Issuing Distribution Point CRL extension. CRLs
662 partitioned by DP are handled but no indirect CRL or reason partitioning
663 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
664 selected via a scoring technique which handles IDP and AKID in CRLs.
667 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
668 will ultimately be used for all verify operations: this will remove the
669 X509_STORE dependency on certificate verification and allow alternative
670 lookup methods. X509_STORE based implementations of these two callbacks.
673 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
674 Modify get_crl() to find a valid (unexpired) CRL if possible.
677 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
678 this would be called X509_CRL_cmp() but that name is already used by
679 a function that just compares CRL issuer names. Cache several CRL
680 extensions in X509_CRL structure and cache CRLDP in X509.
683 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
684 this maps equivalent X509_NAME structures into a consistent structure.
685 Name comparison can then be performed rapidly using memcmp().
688 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
692 *) Allow digests to supply their own micalg string for S/MIME type using
693 the ctrl EVP_MD_CTRL_MICALG.
696 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
697 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
698 ctrl. It can then customise the structure before and/or after signing
702 *) New function OBJ_add_sigid() to allow application defined signature OIDs
703 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
704 to free up any added signature OIDs.
707 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
708 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
709 digest and cipher tables. New options added to openssl utility:
710 list-message-digest-algorithms and list-cipher-algorithms.
713 *) Change the array representation of binary polynomials: the list
714 of degrees of non-zero coefficients is now terminated with -1.
715 Previously it was terminated with 0, which was also part of the
716 value; thus, the array representation was not applicable to
717 polynomials where t^0 has coefficient zero. This change makes
718 the array representation useful in a more general context.
721 *) Various modifications and fixes to SSL/TLS cipher string
722 handling. For ECC, the code now distinguishes between fixed ECDH
723 with RSA certificates on the one hand and with ECDSA certificates
724 on the other hand, since these are separate ciphersuites. The
725 unused code for Fortezza ciphersuites has been removed.
727 For consistency with EDH, ephemeral ECDH is now called "EECDH"
728 (not "ECDHE"). For consistency with the code for DH
729 certificates, use of ECDH certificates is now considered ECDH
730 authentication, not RSA or ECDSA authentication (the latter is
731 merely the CA's signing algorithm and not actively used in the
734 The temporary ciphersuite alias "ECCdraft" is no longer
735 available, and ECC ciphersuites are no longer excluded from "ALL"
736 and "DEFAULT". The following aliases now exist for RFC 4492
737 ciphersuites, most of these by analogy with the DH case:
739 kECDHr - ECDH cert, signed with RSA
740 kECDHe - ECDH cert, signed with ECDSA
741 kECDH - ECDH cert (signed with either RSA or ECDSA)
742 kEECDH - ephemeral ECDH
743 ECDH - ECDH cert or ephemeral ECDH
749 AECDH - anonymous ECDH
750 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
754 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
755 Use correct micalg parameters depending on digest(s) in signed message.
758 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
759 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
762 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
763 an engine to register a method. Add ENGINE lookups for methods and
764 functional reference processing.
767 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
768 EVP_{Sign,Verify}* which allow an application to customise the signature
772 *) New -resign option to smime utility. This adds one or more signers
773 to an existing PKCS#7 signedData structure. Also -md option to use an
774 alternative message digest algorithm for signing.
777 *) Tidy up PKCS#7 routines and add new functions to make it easier to
778 create PKCS7 structures containing multiple signers. Update smime
779 application to support multiple signers.
782 *) New -macalg option to pkcs12 utility to allow setting of an alternative
786 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
787 Reorganize PBE internals to lookup from a static table using NIDs,
788 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
789 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
790 PRF which will be automatically used with PBES2.
793 *) Replace the algorithm specific calls to generate keys in "req" with the
797 *) Update PKCS#7 enveloped data routines to use new API. This is now
798 supported by any public key method supporting the encrypt operation. A
799 ctrl is added to allow the public key algorithm to examine or modify
800 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
804 *) Add a ctrl to asn1 method to allow a public key algorithm to express
805 a default digest type to use. In most cases this will be SHA1 but some
806 algorithms (such as GOST) need to specify an alternative digest. The
807 return value indicates how strong the prefernce is 1 means optional and
808 2 is mandatory (that is it is the only supported type). Modify
809 ASN1_item_sign() to accept a NULL digest argument to indicate it should
810 use the default md. Update openssl utilities to use the default digest
811 type for signing if it is not explicitly indicated.
814 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
815 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
816 signing method from the key type. This effectively removes the link
817 between digests and public key types.
820 *) Add an OID cross reference table and utility functions. Its purpose is to
821 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
822 rsaEncryption. This will allow some of the algorithm specific hackery
823 needed to use the correct OID to be removed.
826 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
827 structures for PKCS7_sign(). They are now set up by the relevant public
831 *) Add provisional EC pkey method with support for ECDSA and ECDH.
834 *) Add support for key derivation (agreement) in the API, DH method and
838 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
839 public and private key formats. As a side effect these add additional
840 command line functionality not previously available: DSA signatures can be
841 generated and verified using pkeyutl and DH key support and generation in
846 [Oliver Tappe <zooey@hirschkaefer.de>]
848 *) New make target "install_html_docs" installs HTML renditions of the
850 [Oliver Tappe <zooey@hirschkaefer.de>]
852 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
853 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
854 support key and parameter generation and add initial key generation
855 functionality for RSA.
858 *) Add functions for main EVP_PKEY_method operations. The undocumented
859 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
860 EVP_PKEY_{encrypt,decrypt}_old.
863 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
864 key API, doesn't do much yet.
867 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
868 public key algorithms. New option to openssl utility:
869 "list-public-key-algorithms" to print out info.
872 *) Implement the Supported Elliptic Curves Extension for
873 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
876 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
877 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
880 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
881 utilities such as rsa, dsa, dsaparam etc except they process any key
885 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
886 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
887 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
891 *) Initial support for pluggable public key ASN1.
892 De-spaghettify the public key ASN1 handling. Move public and private
893 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
894 algorithm specific handling to a single module within the relevant
895 algorithm directory. Add functions to allow (near) opaque processing
896 of public and private key structures.
899 *) Implement the Supported Point Formats Extension for
900 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
903 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
904 for the psk identity [hint] and the psk callback functions to the
905 SSL_SESSION, SSL and SSL_CTX structure.
908 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
912 SSL_CTX_use_psk_identity_hint
913 SSL_get_psk_identity_hint
915 SSL_use_psk_identity_hint
917 [Mika Kousa and Pasi Eronen of Nokia Corporation]
919 *) Add RFC 3161 compliant time stamp request creation, response generation
920 and response verification functionality.
921 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
923 *) Add initial support for TLS extensions, specifically for the server_name
924 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
925 have new members for a host name. The SSL data structure has an
926 additional member SSL_CTX *initial_ctx so that new sessions can be
927 stored in that context to allow for session resumption, even after the
928 SSL has been switched to a new SSL_CTX in reaction to a client's
929 server_name extension.
931 New functions (subject to change):
934 SSL_get_servername_type()
937 New CTRL codes and macros (subject to change):
939 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
940 - SSL_CTX_set_tlsext_servername_callback()
941 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
942 - SSL_CTX_set_tlsext_servername_arg()
943 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
945 openssl s_client has a new '-servername ...' option.
947 openssl s_server has new options '-servername_host ...', '-cert2 ...',
948 '-key2 ...', '-servername_fatal' (subject to change). This allows
949 testing the HostName extension for a specific single host name ('-cert'
950 and '-key' remain fallbacks for handshakes without HostName
951 negotiation). If the unrecogninzed_name alert has to be sent, this by
952 default is a warning; it becomes fatal with the '-servername_fatal'
955 [Peter Sylvester, Remy Allais, Christophe Renou]
957 *) Whirlpool hash implementation is added.
960 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
961 bn(64,32). Because of instruction set limitations it doesn't have
962 any negative impact on performance. This was done mostly in order
963 to make it possible to share assembler modules, such as bn_mul_mont
964 implementations, between 32- and 64-bit builds without hassle.
967 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
968 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
972 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
973 dedicated Montgomery multiplication procedure, is introduced.
974 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
975 "64-bit" performance on certain 32-bit targets.
978 *) New option SSL_OP_NO_COMP to disable use of compression selectively
979 in SSL structures. New SSL ctrl to set maximum send fragment size.
980 Save memory by seeting the I/O buffer sizes dynamically instead of
981 using the maximum available value.
984 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
985 in addition to the text details.
988 *) Very, very preliminary EXPERIMENTAL support for printing of general
989 ASN1 structures. This currently produces rather ugly output and doesn't
990 handle several customised structures at all.
993 *) Integrated support for PVK file format and some related formats such
994 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
995 these in the 'rsa' and 'dsa' utilities.
998 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1001 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1002 place for the (very old) "NETSCAPE" format certificates which are now
1003 handled using new ASN1 code equivalents.
1006 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1007 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1008 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1011 *) Modify CRL distribution points extension code to print out previously
1012 unsupported fields. Enhance extension setting code to allow setting of
1016 *) Add print and set support for Issuing Distribution Point CRL extension.
1019 *) Change 'Configure' script to enable Camellia by default.
1022 Changes between 0.9.8o and 0.9.8p [xx XXX xxxx]
1024 *) Fix extension code to avoid race conditions which can result in a buffer
1025 overrun vulnerability: resumed sessions must not be modified as they can
1026 be shared by multiple threads. CVE-2010-3864
1028 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1031 *) Don't reencode certificate when calculating signature: cache and use
1032 the original encoding instead. This makes signature verification of
1033 some broken encodings work correctly.
1036 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1037 is also one of the inputs.
1038 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1040 *) Don't repeatedly append PBE algorithms to table if they already exist.
1041 Sort table on each new add. This effectively makes the table read only
1042 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1046 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1048 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1051 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1052 access or freeing data twice (CVE-2010-0742)
1053 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1055 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1056 common in certificates and some applications which only call
1057 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1061 Reduce copying into .apps and .test in makevms.com
1062 Don't try to use blank CA certificate in CA.com
1063 Allow use of C files from original directories in maketests.com
1064 [Steven M. Schweda" <sms@antinode.info>]
1066 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1068 *) When rejecting SSL/TLS records due to an incorrect version number, never
1069 update s->server with a new major version number. As of
1070 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1071 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1072 the previous behavior could result in a read attempt at NULL when
1073 receiving specific incorrect SSL/TLS records once record payload
1074 protection is active. (CVE-2010-0740)
1075 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1077 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1078 could be crashed if the relevant tables were not present (e.g. chrooted).
1079 [Tomas Hoger <thoger@redhat.com>]
1081 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1083 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1084 [Martin Olsson, Neel Mehta]
1086 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1087 accommodate for stack sorting, always a write lock!).
1090 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1091 excessive delays in the RAND_poll(): over a minute. As a workaround
1092 include a time check in the inner Heap32Next loop too.
1095 *) The code that handled flushing of data in SSL/TLS originally used the
1096 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1097 the problem outlined in PR#1949. The fix suggested there however can
1098 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1099 of Apache). So instead simplify the code to flush unconditionally.
1100 This should be fine since flushing with no data to flush is a no op.
1103 *) Handle TLS versions 2.0 and later properly and correctly use the
1104 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1105 off ancient servers have a habit of sticking around for a while...
1108 *) Modify compression code so it frees up structures without using the
1109 ex_data callbacks. This works around a problem where some applications
1110 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1111 restarting) then use compression (e.g. SSL with compression) later.
1112 This results in significant per-connection memory leaks and
1113 has caused some security issues including CVE-2008-1678 and
1117 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1118 change when encrypting or decrypting.
1121 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1122 connect and renegotiate with servers which do not support RI.
1123 Until RI is more widely deployed this option is enabled by default.
1126 *) Add "missing" ssl ctrls to clear options and mode.
1129 *) If client attempts to renegotiate and doesn't support RI respond with
1130 a no_renegotiation alert as required by RFC5746. Some renegotiating
1131 TLS clients will continue a connection gracefully when they receive
1132 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1133 waiting for a server hello which it will never receive. Now we treat a
1134 received no_renegotiation alert as a fatal error. This is because
1135 applications requesting a renegotiation might well expect it to succeed
1136 and would have no code in place to handle the server denying it so the
1137 only safe thing to do is to terminate the connection.
1140 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1141 peer supports secure renegotiation and 0 otherwise. Print out peer
1142 renegotiation support in s_client/s_server.
1145 *) Replace the highly broken and deprecated SPKAC certification method with
1146 the updated NID creation version. This should correctly handle UTF8.
1149 *) Implement RFC5746. Re-enable renegotiation but require the extension
1150 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1151 turns out to be a bad idea. It has been replaced by
1152 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1153 SSL_CTX_set_options(). This is really not recommended unless you
1154 know what you are doing.
1155 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1157 *) Fixes to stateless session resumption handling. Use initial_ctx when
1158 issuing and attempting to decrypt tickets in case it has changed during
1159 servername handling. Use a non-zero length session ID when attempting
1160 stateless session resumption: this makes it possible to determine if
1161 a resumption has occurred immediately after receiving server hello
1162 (several places in OpenSSL subtly assume this) instead of later in
1166 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1167 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1168 fixes for a few places where the return code is not checked
1170 [Julia Lawall <julia@diku.dk>]
1172 *) Add --strict-warnings option to Configure script to include devteam
1173 warnings in other configurations.
1176 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1177 makes it possible to install openssl libraries in locations which
1178 have names other than "lib", for example "/usr/lib64" which some
1180 [Steve Henson, based on patch from Jeremy Utley]
1182 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1183 X690 8.9.12 and can produce some misleading textual output of OIDs.
1184 [Steve Henson, reported by Dan Kaminsky]
1186 *) Delete MD2 from algorithm tables. This follows the recommendation in
1187 several standards that it is not used in new applications due to
1188 several cryptographic weaknesses. For binary compatibility reasons
1189 the MD2 API is still compiled in by default.
1192 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1196 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1197 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1199 [Guenter <lists@gknw.net>]
1201 *) Fix the server certificate chain building code to use X509_verify_cert(),
1202 it used to have an ad-hoc builder which was unable to cope with anything
1203 other than a simple chain.
1204 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1206 *) Don't check self signed certificate signatures in X509_verify_cert()
1207 by default (a flag can override this): it just wastes time without
1208 adding any security. As a useful side effect self signed root CAs
1209 with non-FIPS digests are now usable in FIPS mode.
1212 *) In dtls1_process_out_of_seq_message() the check if the current message
1213 is already buffered was missing. For every new message was memory
1214 allocated, allowing an attacker to perform an denial of service attack
1215 with sending out of seq handshake messages until there is no memory
1216 left. Additionally every future messege was buffered, even if the
1217 sequence number made no sense and would be part of another handshake.
1218 So only messages with sequence numbers less than 10 in advance will be
1219 buffered. (CVE-2009-1378)
1220 [Robin Seggelmann, discovered by Daniel Mentz]
1222 *) Records are buffered if they arrive with a future epoch to be
1223 processed after finishing the corresponding handshake. There is
1224 currently no limitation to this buffer allowing an attacker to perform
1225 a DOS attack with sending records with future epochs until there is no
1226 memory left. This patch adds the pqueue_size() function to detemine
1227 the size of a buffer and limits the record buffer to 100 entries.
1229 [Robin Seggelmann, discovered by Daniel Mentz]
1231 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1232 parent structure is freed. (CVE-2009-1379)
1235 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1236 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1239 [Ilya O. <vrghost@gmail.com>]
1241 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1243 *) Disable renegotiation completely - this fixes a severe security
1244 problem (CVE-2009-3555) at the cost of breaking all
1245 renegotiation. Renegotiation can be re-enabled by setting
1246 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1247 run-time. This is really not recommended unless you know what
1251 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1253 *) Don't set val to NULL when freeing up structures, it is freed up by
1254 underlying code. If sizeof(void *) > sizeof(long) this can result in
1255 zeroing past the valid field. (CVE-2009-0789)
1256 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1258 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1259 checked correctly. This would allow some invalid signed attributes to
1260 appear to verify correctly. (CVE-2009-0591)
1261 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1263 *) Reject UniversalString and BMPString types with invalid lengths. This
1264 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1265 a legal length. (CVE-2009-0590)
1268 *) Set S/MIME signing as the default purpose rather than setting it
1269 unconditionally. This allows applications to override it at the store
1273 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1274 to handle some structures.
1277 *) Improve efficiency of mem_gets: don't search whole buffer each time
1279 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1281 *) New -hex option for openssl rand.
1284 *) Print out UTF8String and NumericString when parsing ASN1.
1287 *) Support NumericString type for name components.
1290 *) Allow CC in the environment to override the automatically chosen
1291 compiler. Note that nothing is done to ensure flags work with the
1295 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1297 *) Properly check EVP_VerifyFinal() and similar return values
1299 [Ben Laurie, Bodo Moeller, Google Security Team]
1301 *) Enable TLS extensions by default.
1304 *) Allow the CHIL engine to be loaded, whether the application is
1305 multithreaded or not. (This does not release the developer from the
1306 obligation to set up the dynamic locking callbacks.)
1307 [Sander Temme <sander@temme.net>]
1309 *) Use correct exit code if there is an error in dgst command.
1310 [Steve Henson; problem pointed out by Roland Dirlewanger]
1312 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1313 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1316 *) Add experimental JPAKE support, including demo authentication in
1317 s_client and s_server.
1320 *) Set the comparison function in v3_addr_canonize().
1321 [Rob Austein <sra@hactrn.net>]
1323 *) Add support for XMPP STARTTLS in s_client.
1324 [Philip Paeps <philip@freebsd.org>]
1326 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1327 to ensure that even with this option, only ciphersuites in the
1328 server's preference list will be accepted. (Note that the option
1329 applies only when resuming a session, so the earlier behavior was
1330 just about the algorithm choice for symmetric cryptography.)
1333 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1335 *) Fix NULL pointer dereference if a DTLS server received
1336 ChangeCipherSpec as first record (CVE-2009-1386).
1339 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1340 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1343 *) The fix in 0.9.8c that supposedly got rid of unsafe
1344 double-checked locking was incomplete for RSA blinding,
1345 addressing just one layer of what turns out to have been
1346 doubly unsafe triple-checked locking.
1348 So now fix this for real by retiring the MONT_HELPER macro
1349 in crypto/rsa/rsa_eay.c.
1351 [Bodo Moeller; problem pointed out by Marius Schilder]
1353 *) Various precautionary measures:
1355 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1357 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1358 (NB: This would require knowledge of the secret session ticket key
1359 to exploit, in which case you'd be SOL either way.)
1361 - Change bn_nist.c so that it will properly handle input BIGNUMs
1362 outside the expected range.
1364 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1367 [Neel Mehta, Bodo Moeller]
1369 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1370 the load fails. Useful for distros.
1371 [Ben Laurie and the FreeBSD team]
1373 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1376 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1379 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1381 This work was sponsored by Logica.
1384 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1385 keystores. Support for SSL/TLS client authentication too.
1386 Not compiled unless enable-capieng specified to Configure.
1388 This work was sponsored by Logica.
1391 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1392 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1393 attribute creation routines such as certifcate requests and PKCS#12
1397 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1399 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1400 handshake which could lead to a cilent crash as found using the
1401 Codenomicon TLS test suite (CVE-2008-1672)
1402 [Steve Henson, Mark Cox]
1404 *) Fix double free in TLS server name extensions which could lead to
1405 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1408 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1410 Clear the error queue to ensure that error entries left from
1411 older function calls do not interfere with the correct operation.
1412 [Lutz Jaenicke, Erik de Castro Lopo]
1414 *) Remove root CA certificates of commercial CAs:
1416 The OpenSSL project does not recommend any specific CA and does not
1417 have any policy with respect to including or excluding any CA.
1418 Therefore it does not make any sense to ship an arbitrary selection
1419 of root CA certificates with the OpenSSL software.
1422 *) RSA OAEP patches to fix two separate invalid memory reads.
1423 The first one involves inputs when 'lzero' is greater than
1424 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1425 before the beginning of from). The second one involves inputs where
1426 the 'db' section contains nothing but zeroes (there is a one-byte
1427 invalid read after the end of 'db').
1428 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1430 *) Partial backport from 0.9.9-dev:
1432 Introduce bn_mul_mont (dedicated Montgomery multiplication
1433 procedure) as a candidate for BIGNUM assembler implementation.
1434 While 0.9.9-dev uses assembler for various architectures, only
1435 x86_64 is available by default here in the 0.9.8 branch, and
1436 32-bit x86 is available through a compile-time setting.
1438 To try the 32-bit x86 assembler implementation, use Configure
1439 option "enable-montasm" (which exists only for this backport).
1441 As "enable-montasm" for 32-bit x86 disclaims code stability
1442 anyway, in this constellation we activate additional code
1443 backported from 0.9.9-dev for further performance improvements,
1444 namely BN_from_montgomery_word. (To enable this otherwise,
1445 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1447 [Andy Polyakov (backport partially by Bodo Moeller)]
1449 *) Add TLS session ticket callback. This allows an application to set
1450 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1451 values. This is useful for key rollover for example where several key
1452 sets may exist with different names.
1455 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1456 This was broken until now in 0.9.8 releases, such that the only way
1457 a registered ENGINE could be used (assuming it initialises
1458 successfully on the host) was to explicitly set it as the default
1459 for the relevant algorithms. This is in contradiction with 0.9.7
1460 behaviour and the documentation. With this fix, when an ENGINE is
1461 registered into a given algorithm's table of implementations, the
1462 'uptodate' flag is reset so that auto-discovery will be used next
1463 time a new context for that algorithm attempts to select an
1465 [Ian Lister (tweaked by Geoff Thorpe)]
1467 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1468 implemention in the following ways:
1470 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1473 Lack of BER streaming support means one pass streaming processing is
1474 only supported if data is detached: setting the streaming flag is
1475 ignored for embedded content.
1477 CMS support is disabled by default and must be explicitly enabled
1478 with the enable-cms configuration option.
1481 *) Update the GMP engine glue to do direct copies between BIGNUM and
1482 mpz_t when openssl and GMP use the same limb size. Otherwise the
1483 existing "conversion via a text string export" trick is still used.
1484 [Paul Sheer <paulsheer@gmail.com>]
1486 *) Zlib compression BIO. This is a filter BIO which compressed and
1487 uncompresses any data passed through it.
1490 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1491 RFC3394 compatible AES key wrapping.
1494 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1495 sets string data without copying. X509_ALGOR_set0() and
1496 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1497 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1498 from an X509_ATTRIBUTE structure optionally checking it occurs only
1499 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1503 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1504 to get the expected BN_FLG_CONSTTIME behavior.
1505 [Bodo Moeller (Google)]
1509 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1510 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1511 - added some more tests to do_tests.pl
1512 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1513 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1514 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1515 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1516 - various changes to netware.pl to enable gcc-cross builds on Win32
1518 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1519 - various changes to fix missing prototype warnings
1520 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1521 - added AES, WHIRLPOOL and CPUID assembler code to build files
1522 - added missing AES assembler make rules to mk1mf.pl
1523 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1524 [Guenter Knauf <eflash@gmx.net>]
1526 *) Implement certificate status request TLS extension defined in RFC3546.
1527 A client can set the appropriate parameters and receive the encoded
1528 OCSP response via a callback. A server can query the supplied parameters
1529 and set the encoded OCSP response in the callback. Add simplified examples
1530 to s_client and s_server.
1533 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1535 *) Fix various bugs:
1536 + Binary incompatibility of ssl_ctx_st structure
1537 + DTLS interoperation with non-compliant servers
1538 + Don't call get_session_cb() without proposed session
1539 + Fix ia64 assembler code
1540 [Andy Polyakov, Steve Henson]
1542 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1544 *) DTLS Handshake overhaul. There were longstanding issues with
1545 OpenSSL DTLS implementation, which were making it impossible for
1546 RFC 4347 compliant client to communicate with OpenSSL server.
1547 Unfortunately just fixing these incompatibilities would "cut off"
1548 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1549 server keeps tolerating non RFC compliant syntax. The opposite is
1550 not true, 0.9.8f client can not communicate with earlier server.
1551 This update even addresses CVE-2007-4995.
1554 *) Changes to avoid need for function casts in OpenSSL: some compilers
1555 (gcc 4.2 and later) reject their use.
1556 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1559 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1560 RFC4507bis. The encrypted ticket format is an encrypted encoded
1561 SSL_SESSION structure, that way new session features are automatically
1564 If a client application caches session in an SSL_SESSION structure
1565 support is transparent because tickets are now stored in the encoded
1568 The SSL_CTX structure automatically generates keys for ticket
1569 protection in servers so again support should be possible
1570 with no application modification.
1572 If a client or server wishes to disable RFC4507 support then the option
1573 SSL_OP_NO_TICKET can be set.
1575 Add a TLS extension debugging callback to allow the contents of any client
1576 or server extensions to be examined.
1578 This work was sponsored by Google.
1581 *) Add initial support for TLS extensions, specifically for the server_name
1582 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1583 have new members for a host name. The SSL data structure has an
1584 additional member SSL_CTX *initial_ctx so that new sessions can be
1585 stored in that context to allow for session resumption, even after the
1586 SSL has been switched to a new SSL_CTX in reaction to a client's
1587 server_name extension.
1589 New functions (subject to change):
1591 SSL_get_servername()
1592 SSL_get_servername_type()
1595 New CTRL codes and macros (subject to change):
1597 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1598 - SSL_CTX_set_tlsext_servername_callback()
1599 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1600 - SSL_CTX_set_tlsext_servername_arg()
1601 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1603 openssl s_client has a new '-servername ...' option.
1605 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1606 '-key2 ...', '-servername_fatal' (subject to change). This allows
1607 testing the HostName extension for a specific single host name ('-cert'
1608 and '-key' remain fallbacks for handshakes without HostName
1609 negotiation). If the unrecogninzed_name alert has to be sent, this by
1610 default is a warning; it becomes fatal with the '-servername_fatal'
1613 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1615 *) Add AES and SSE2 assembly language support to VC++ build.
1618 *) Mitigate attack on final subtraction in Montgomery reduction.
1621 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1622 (which previously caused an internal error).
1625 *) Squeeze another 10% out of IGE mode when in != out.
1628 *) AES IGE mode speedup.
1629 [Dean Gaudet (Google)]
1631 *) Add the Korean symmetric 128-bit cipher SEED (see
1632 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1633 add SEED ciphersuites from RFC 4162:
1635 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1636 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1637 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1638 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1640 To minimize changes between patchlevels in the OpenSSL 0.9.8
1641 series, SEED remains excluded from compilation unless OpenSSL
1642 is configured with 'enable-seed'.
1643 [KISA, Bodo Moeller]
1645 *) Mitigate branch prediction attacks, which can be practical if a
1646 single processor is shared, allowing a spy process to extract
1647 information. For detailed background information, see
1648 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1649 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1650 and Necessary Software Countermeasures"). The core of the change
1651 are new versions BN_div_no_branch() and
1652 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1653 respectively, which are slower, but avoid the security-relevant
1654 conditional branches. These are automatically called by BN_div()
1655 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1656 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1657 remove a conditional branch.
1659 BN_FLG_CONSTTIME is the new name for the previous
1660 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1661 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1662 in the exponent causes BN_mod_exp_mont() to use the alternative
1663 implementation in BN_mod_exp_mont_consttime().) The old name
1664 remains as a deprecated alias.
1666 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1667 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1668 constant-time implementations for more than just exponentiation.
1669 Here too the old name is kept as a deprecated alias.
1671 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1672 the BN_BLINDING structure gets an independent copy of the
1673 modulus. This means that the previous "BIGNUM *m" argument to
1674 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1675 essentially becomes "const BIGNUM *m", although we can't actually
1676 change this in the header file before 0.9.9. It allows
1677 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1678 enable BN_FLG_CONSTTIME.
1680 [Matthew D Wood (Intel Corp)]
1682 *) In the SSL/TLS server implementation, be strict about session ID
1683 context matching (which matters if an application uses a single
1684 external cache for different purposes). Previously,
1685 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1686 set. This did ensure strict client verification, but meant that,
1687 with applications using a single external cache for quite
1688 different requirements, clients could circumvent ciphersuite
1689 restrictions for a given session ID context by starting a session
1690 in a different context.
1693 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1694 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1695 authentication-only ciphersuites.
1698 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1699 not complete and could lead to a possible single byte overflow
1700 (CVE-2007-5135) [Ben Laurie]
1702 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1704 *) Since AES128 and AES256 (and similarly Camellia128 and
1705 Camellia256) share a single mask bit in the logic of
1706 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1707 kludge to work properly if AES128 is available and AES256 isn't
1708 (or if Camellia128 is available and Camellia256 isn't).
1711 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1712 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1713 When a point or a seed is encoded in a BIT STRING, we need to
1714 prevent the removal of trailing zero bits to get the proper DER
1715 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1716 of a NamedBitList, for which trailing 0 bits need to be removed.)
1719 *) Have SSL/TLS server implementation tolerate "mismatched" record
1720 protocol version while receiving ClientHello even if the
1721 ClientHello is fragmented. (The server can't insist on the
1722 particular protocol version it has chosen before the ServerHello
1723 message has informed the client about his choice.)
1726 *) Add RFC 3779 support.
1727 [Rob Austein for ARIN, Ben Laurie]
1729 *) Load error codes if they are not already present instead of using a
1730 static variable. This allows them to be cleanly unloaded and reloaded.
1731 Improve header file function name parsing.
1734 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1735 or CAPABILITY handshake as required by RFCs.
1738 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1740 *) Introduce limits to prevent malicious keys being able to
1741 cause a denial of service. (CVE-2006-2940)
1742 [Steve Henson, Bodo Moeller]
1744 *) Fix ASN.1 parsing of certain invalid structures that can result
1745 in a denial of service. (CVE-2006-2937) [Steve Henson]
1747 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1748 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1750 *) Fix SSL client code which could crash if connecting to a
1751 malicious SSLv2 server. (CVE-2006-4343)
1752 [Tavis Ormandy and Will Drewry, Google Security Team]
1754 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1755 match only those. Before that, "AES256-SHA" would be interpreted
1756 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1757 the same strength classification in 0.9.7h) as we currently only
1758 have a single AES bit in the ciphersuite description bitmap.
1759 That change, however, also applied to ciphersuite strings such as
1760 "RC4-MD5" that intentionally matched multiple ciphersuites --
1761 namely, SSL 2.0 ciphersuites in addition to the more common ones
1762 from SSL 3.0/TLS 1.0.
1764 So we change the selection algorithm again: Naming an explicit
1765 ciphersuite selects this one ciphersuite, and any other similar
1766 ciphersuite (same bitmap) from *other* protocol versions.
1767 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1768 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1770 Since SSL 2.0 does not have any ciphersuites for which the
1771 128/256 bit distinction would be relevant, this works for now.
1772 The proper fix will be to use different bits for AES128 and
1773 AES256, which would have avoided the problems from the beginning;
1774 however, bits are scarce, so we can only do this in a new release
1775 (not just a patchlevel) when we can change the SSL_CIPHER
1776 definition to split the single 'unsigned long mask' bitmap into
1777 multiple values to extend the available space.
1781 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1783 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1784 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1786 *) Add AES IGE and biIGE modes.
1789 *) Change the Unix randomness entropy gathering to use poll() when
1790 possible instead of select(), since the latter has some
1791 undesirable limitations.
1792 [Darryl Miles via Richard Levitte and Bodo Moeller]
1794 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1795 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1796 cannot be implicitly activated as part of, e.g., the "AES" alias.
1797 However, please upgrade to OpenSSL 0.9.9[-dev] for
1798 non-experimental use of the ECC ciphersuites to get TLS extension
1799 support, which is required for curve and point format negotiation
1800 to avoid potential handshake problems.
1803 *) Disable rogue ciphersuites:
1805 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1806 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1807 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1809 The latter two were purportedly from
1810 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1813 Also deactivate the remaining ciphersuites from
1814 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1815 unofficial, and the ID has long expired.
1818 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1819 dual-core machines) and other potential thread-safety issues.
1822 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1823 versions), which is now available for royalty-free use
1824 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1825 Also, add Camellia TLS ciphersuites from RFC 4132.
1827 To minimize changes between patchlevels in the OpenSSL 0.9.8
1828 series, Camellia remains excluded from compilation unless OpenSSL
1829 is configured with 'enable-camellia'.
1832 *) Disable the padding bug check when compression is in use. The padding
1833 bug check assumes the first packet is of even length, this is not
1834 necessarily true if compresssion is enabled and can result in false
1835 positives causing handshake failure. The actual bug test is ancient
1836 code so it is hoped that implementations will either have fixed it by
1837 now or any which still have the bug do not support compression.
1840 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1842 *) When applying a cipher rule check to see if string match is an explicit
1843 cipher suite and only match that one cipher suite if it is.
1846 *) Link in manifests for VC++ if needed.
1847 [Austin Ziegler <halostatue@gmail.com>]
1849 *) Update support for ECC-based TLS ciphersuites according to
1850 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1851 TLS extensions, which are supported starting with the 0.9.9
1852 branch, not in the OpenSSL 0.9.8 branch).
1855 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1856 opaque EVP_CIPHER_CTX handling.
1859 *) Fixes and enhancements to zlib compression code. We now only use
1860 "zlib1.dll" and use the default __cdecl calling convention on Win32
1861 to conform with the standards mentioned here:
1862 http://www.zlib.net/DLL_FAQ.txt
1863 Static zlib linking now works on Windows and the new --with-zlib-include
1864 --with-zlib-lib options to Configure can be used to supply the location
1865 of the headers and library. Gracefully handle case where zlib library
1869 *) Several fixes and enhancements to the OID generation code. The old code
1870 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1871 handle numbers larger than ULONG_MAX, truncated printing and had a
1872 non standard OBJ_obj2txt() behaviour.
1875 *) Add support for building of engines under engine/ as shared libraries
1876 under VC++ build system.
1879 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1880 Hopefully, we will not see any false combination of paths any more.
1883 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1885 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1886 (part of SSL_OP_ALL). This option used to disable the
1887 countermeasure against man-in-the-middle protocol-version
1888 rollback in the SSL 2.0 server implementation, which is a bad
1889 idea. (CVE-2005-2969)
1891 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1892 for Information Security, National Institute of Advanced Industrial
1893 Science and Technology [AIST], Japan)]
1895 *) Add two function to clear and return the verify parameter flags.
1898 *) Keep cipherlists sorted in the source instead of sorting them at
1899 runtime, thus removing the need for a lock.
1902 *) Avoid some small subgroup attacks in Diffie-Hellman.
1903 [Nick Mathewson and Ben Laurie]
1905 *) Add functions for well-known primes.
1908 *) Extended Windows CE support.
1909 [Satoshi Nakamura and Andy Polyakov]
1911 *) Initialize SSL_METHOD structures at compile time instead of during
1912 runtime, thus removing the need for a lock.
1915 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1916 attempting to decrypt each encrypted key in turn. Add support to
1920 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1922 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1925 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1928 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1929 key into the same file any more.
1932 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1935 *) Add -utf8 command line and config file option to 'ca'.
1936 [Stefan <stf@udoma.org]
1938 *) Removed the macro des_crypt(), as it seems to conflict with some
1939 libraries. Use DES_crypt().
1942 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1943 involves renaming the source and generated shared-libs for
1944 both. The engines will accept the corrected or legacy ids
1945 ('ncipher' and '4758_cca' respectively) when binding. NB,
1946 this only applies when building 'shared'.
1947 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1949 *) Add attribute functions to EVP_PKEY structure. Modify
1950 PKCS12_create() to recognize a CSP name attribute and
1951 use it. Make -CSP option work again in pkcs12 utility.
1954 *) Add new functionality to the bn blinding code:
1955 - automatic re-creation of the BN_BLINDING parameters after
1956 a fixed number of uses (currently 32)
1957 - add new function for parameter creation
1958 - introduce flags to control the update behaviour of the
1959 BN_BLINDING parameters
1960 - hide BN_BLINDING structure
1961 Add a second BN_BLINDING slot to the RSA structure to improve
1962 performance when a single RSA object is shared among several
1966 *) Add support for DTLS.
1967 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1969 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1970 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1973 *) Remove buggy and incompletet DH cert support from
1974 ssl/ssl_rsa.c and ssl/s3_both.c
1977 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1978 the apps/openssl applications.
1981 *) Compile clean with "-Wall -Wmissing-prototypes
1982 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1983 DEBUG_SAFESTACK must also be set.
1986 *) Change ./Configure so that certain algorithms can be disabled by default.
1987 The new counterpiece to "no-xxx" is "enable-xxx".
1989 The patented RC5 and MDC2 algorithms will now be disabled unless
1990 "enable-rc5" and "enable-mdc2", respectively, are specified.
1992 (IDEA remains enabled despite being patented. This is because IDEA
1993 is frequently required for interoperability, and there is no license
1994 fee for non-commercial use. As before, "no-idea" can be used to
1995 avoid this algorithm.)
1999 *) Add processing of proxy certificates (see RFC 3820). This work was
2000 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2001 EGEE (Enabling Grids for E-science in Europe).
2004 *) RC4 performance overhaul on modern architectures/implementations, such
2005 as Intel P4, IA-64 and AMD64.
2008 *) New utility extract-section.pl. This can be used specify an alternative
2009 section number in a pod file instead of having to treat each file as
2010 a separate case in Makefile. This can be done by adding two lines to the
2013 =for comment openssl_section:XXX
2015 The blank line is mandatory.
2019 *) New arguments -certform, -keyform and -pass for s_client and s_server
2020 to allow alternative format key and certificate files and passphrase
2024 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2025 update associated structures and add various utility functions.
2027 Add new policy related verify parameters, include policy checking in
2028 standard verify code. Enhance 'smime' application with extra parameters
2029 to support policy checking and print out.
2032 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2033 Nehemiah processors. These extensions support AES encryption in hardware
2034 as well as RNG (though RNG support is currently disabled).
2035 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2037 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2040 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2041 [Andy Polyakov and a number of other people]
2043 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2044 implementation contributed by IBM.
2045 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2047 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2048 exponent rather than 'unsigned long'. There is a corresponding change to
2049 the new 'rsa_keygen' element of the RSA_METHOD structure.
2050 [Jelte Jansen, Geoff Thorpe]
2052 *) Functionality for creating the initial serial number file is now
2053 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2055 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2056 number file to 1, which is bound to cause problems. To avoid
2057 the problems while respecting compatibility between different 0.9.7
2058 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2059 CA.pl for serial number initialization. With the new release 0.9.8,
2060 we can fix the problem directly in the 'ca' utility.)
2063 *) Reduced header interdepencies by declaring more opaque objects in
2064 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2065 give fewer recursive includes, which could break lazy source code - so
2066 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2067 developers should define this symbol when building and using openssl to
2068 ensure they track the recommended behaviour, interfaces, [etc], but
2069 backwards-compatible behaviour prevails when this isn't defined.
2072 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2075 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2076 This will generate a random key of the appropriate length based on the
2077 cipher context. The EVP_CIPHER can provide its own random key generation
2078 routine to support keys of a specific form. This is used in the des and
2079 3des routines to generate a key of the correct parity. Update S/MIME
2080 code to use new functions and hence generate correct parity DES keys.
2081 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2082 valid (weak or incorrect parity).
2085 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2086 as looking them up. This is useful when the verified structure may contain
2087 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2088 present unless the new PKCS7_NO_CRL flag is asserted.
2091 *) Extend ASN1 oid configuration module. It now additionally accepts the
2094 shortName = some long name, 1.2.3.4
2097 *) Reimplemented the BN_CTX implementation. There is now no more static
2098 limitation on the number of variables it can handle nor the depth of the
2099 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2100 information can now expand as required, and rather than having a single
2101 static array of bignums, BN_CTX now uses a linked-list of such arrays
2102 allowing it to expand on demand whilst maintaining the usefulness of
2103 BN_CTX's "bundling".
2106 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2107 to allow all RSA operations to function using a single BN_CTX.
2110 *) Preliminary support for certificate policy evaluation and checking. This
2111 is initially intended to pass the tests outlined in "Conformance Testing
2112 of Relying Party Client Certificate Path Processing Logic" v1.07.
2115 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2116 remained unused and not that useful. A variety of other little bignum
2117 tweaks and fixes have also been made continuing on from the audit (see
2121 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2122 associated ASN1, EVP and SSL functions and old ASN1 macros.
2125 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2126 and this should never fail. So the return value from the use of
2127 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2128 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2131 *) BN_CTX_get() should return zero-valued bignums, providing the same
2132 initialised value as BN_new().
2133 [Geoff Thorpe, suggested by Ulf Möller]
2135 *) Support for inhibitAnyPolicy certificate extension.
2138 *) An audit of the BIGNUM code is underway, for which debugging code is
2139 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2140 is considered valid when processing BIGNUMs, and causes execution to
2141 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2142 further steps are taken to deliberately pollute unused data in BIGNUM
2143 structures to try and expose faulty code further on. For now, openssl will
2144 (in its default mode of operation) continue to tolerate the inconsistent
2145 forms that it has tolerated in the past, but authors and packagers should
2146 consider trying openssl and their own applications when compiled with
2147 these debugging symbols defined. It will help highlight potential bugs in
2148 their own code, and will improve the test coverage for OpenSSL itself. At
2149 some point, these tighter rules will become openssl's default to improve
2150 maintainability, though the assert()s and other overheads will remain only
2151 in debugging configurations. See bn.h for more details.
2152 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2154 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2155 that can only be obtained through BN_CTX_new() (which implicitly
2156 initialises it). The presence of this function only made it possible
2157 to overwrite an existing structure (and cause memory leaks).
2160 *) Because of the callback-based approach for implementing LHASH as a
2161 template type, lh_insert() adds opaque objects to hash-tables and
2162 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2163 to clean up those corresponding objects before destroying the hash table
2164 (and losing the object pointers). So some over-zealous constifications in
2165 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2166 objects as "const" and the lh_doall[_arg] callback wrappers are not
2167 prototyped to have "const" restrictions on the object pointers they are
2168 given (and so aren't required to cast them away any more).
2171 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2172 (speed) prefers to use its own implementation. The two implementations
2173 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2174 its object type properly exposed (MS_TM) instead of casting to/from "char
2175 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2176 aren't necessarily the greatest nomenclatures - but this is what was used
2177 internally to the implementation so I've used that for now.
2180 *) Ensure that deprecated functions do not get compiled when
2181 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2182 the self-tests were still using deprecated key-generation functions so
2183 these have been updated also.
2186 *) Reorganise PKCS#7 code to separate the digest location functionality
2187 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2188 New function PKCS7_set_digest() to set the digest type for PKCS#7
2189 digestedData type. Add additional code to correctly generate the
2190 digestedData type and add support for this type in PKCS7 initialization
2194 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2195 structure of type "other".
2198 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2199 sure the loop does correctly stop and breaking ("division by zero")
2200 modulus operations are not performed. The (pre-generated) prime
2201 table crypto/bn/bn_prime.h was already correct, but it could not be
2202 re-generated on some platforms because of the "division by zero"
2203 situation in the script.
2204 [Ralf S. Engelschall]
2206 *) Update support for ECC-based TLS ciphersuites according to
2207 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2208 SHA-1 now is only used for "small" curves (where the
2209 representation of a field element takes up to 24 bytes); for
2210 larger curves, the field element resulting from ECDH is directly
2211 used as premaster secret.
2212 [Douglas Stebila (Sun Microsystems Laboratories)]
2214 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2215 curve secp160r1 to the tests.
2216 [Douglas Stebila (Sun Microsystems Laboratories)]
2218 *) Add the possibility to load symbols globally with DSO.
2219 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2221 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2222 control of the error stack.
2225 *) Add support for STORE in ENGINE.
2228 *) Add the STORE type. The intention is to provide a common interface
2229 to certificate and key stores, be they simple file-based stores, or
2230 HSM-type store, or LDAP stores, or...
2231 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2234 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2235 pass a list of arguments to any function as well as provide a way
2236 for a function to pass data back to the caller.
2239 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2240 works like BUF_strdup() but can be used to duplicate a portion of
2241 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2245 *) Add the function sk_find_ex() which works like sk_find(), but will
2246 return an index to an element even if an exact match couldn't be
2247 found. The index is guaranteed to point at the element where the
2248 searched-for key would be inserted to preserve sorting order.
2251 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2252 takes an extra flags argument for optional functionality. Currently,
2253 the following flags are defined:
2255 OBJ_BSEARCH_VALUE_ON_NOMATCH
2256 This one gets OBJ_bsearch_ex() to return a pointer to the first
2257 element where the comparing function returns a negative or zero
2260 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2261 This one gets OBJ_bsearch_ex() to return a pointer to the first
2262 element where the comparing function returns zero. This is useful
2263 if there are more than one element where the comparing function
2267 *) Make it possible to create self-signed certificates with 'openssl ca'
2268 in such a way that the self-signed certificate becomes part of the
2269 CA database and uses the same mechanisms for serial number generation
2270 as all other certificate signing. The new flag '-selfsign' enables
2271 this functionality. Adapt CA.sh and CA.pl.in.
2274 *) Add functionality to check the public key of a certificate request
2275 against a given private. This is useful to check that a certificate
2276 request can be signed by that key (self-signing).
2279 *) Make it possible to have multiple active certificates with the same
2280 subject in the CA index file. This is done only if the keyword
2281 'unique_subject' is set to 'no' in the main CA section (default
2282 if 'CA_default') of the configuration file. The value is saved
2283 with the database itself in a separate index attribute file,
2284 named like the index file with '.attr' appended to the name.
2287 *) Generate muti valued AVAs using '+' notation in config files for
2291 *) Support for nameConstraints certificate extension.
2294 *) Support for policyConstraints certificate extension.
2297 *) Support for policyMappings certificate extension.
2300 *) Make sure the default DSA_METHOD implementation only uses its
2301 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2302 and change its own handlers to be NULL so as to remove unnecessary
2303 indirection. This lets alternative implementations fallback to the
2304 default implementation more easily.
2307 *) Support for directoryName in GeneralName related extensions
2311 *) Make it possible to link applications using Makefile.shared.
2312 Make that possible even when linking against static libraries!
2315 *) Support for single pass processing for S/MIME signing. This now
2316 means that S/MIME signing can be done from a pipe, in addition
2317 cleartext signing (multipart/signed type) is effectively streaming
2318 and the signed data does not need to be all held in memory.
2320 This is done with a new flag PKCS7_STREAM. When this flag is set
2321 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2322 is done after the data is output (and digests calculated) in
2323 SMIME_write_PKCS7().
2326 *) Add full support for -rpath/-R, both in shared libraries and
2327 applications, at least on the platforms where it's known how
2331 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2332 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2333 will now compute a table of multiples of the generator that
2334 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2335 faster (notably in the case of a single point multiplication,
2336 scalar * generator).
2337 [Nils Larsch, Bodo Moeller]
2339 *) IPv6 support for certificate extensions. The various extensions
2340 which use the IP:a.b.c.d can now take IPv6 addresses using the
2341 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2345 *) Added an ENGINE that implements RSA by performing private key
2346 exponentiations with the GMP library. The conversions to and from
2347 GMP's mpz_t format aren't optimised nor are any montgomery forms
2348 cached, and on x86 it appears OpenSSL's own performance has caught up.
2349 However there are likely to be other architectures where GMP could
2350 provide a boost. This ENGINE is not built in by default, but it can be
2351 specified at Configure time and should be accompanied by the necessary
2352 linker additions, eg;
2353 ./config -DOPENSSL_USE_GMP -lgmp
2356 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2357 testing availability of engines with "-t" - the old behaviour is
2358 produced by increasing the feature's verbosity with "-tt".
2361 *) ECDSA routines: under certain error conditions uninitialized BN objects
2362 could be freed. Solution: make sure initialization is performed early
2363 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2367 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2368 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2369 software implementations. For DSA and DH, parameter generation can
2370 also be overriden by providing the appropriate method callbacks.
2373 *) Change the "progress" mechanism used in key-generation and
2374 primality testing to functions that take a new BN_GENCB pointer in
2375 place of callback/argument pairs. The new API functions have "_ex"
2376 postfixes and the older functions are reimplemented as wrappers for
2377 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2378 declarations of the old functions to help (graceful) attempts to
2379 migrate to the new functions. Also, the new key-generation API
2380 functions operate on a caller-supplied key-structure and return
2381 success/failure rather than returning a key or NULL - this is to
2382 help make "keygen" another member function of RSA_METHOD etc.
2384 Example for using the new callback interface:
2386 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2390 BN_GENCB_set(&my_cb, my_callback, my_arg);
2392 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2393 /* For the meaning of a, b in calls to my_callback(), see the
2394 * documentation of the function that calls the callback.
2395 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2396 * my_callback should return 1 if it wants BN_is_prime_ex()
2397 * to continue, or 0 to stop.
2402 *) Change the ZLIB compression method to be stateful, and make it
2403 available to TLS with the number defined in
2404 draft-ietf-tls-compression-04.txt.
2407 *) Add the ASN.1 structures and functions for CertificatePair, which
2408 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2410 CertificatePair ::= SEQUENCE {
2411 forward [0] Certificate OPTIONAL,
2412 reverse [1] Certificate OPTIONAL,
2413 -- at least one of the pair shall be present -- }
2415 Also implement the PEM functions to read and write certificate
2416 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2418 This needed to be defined, mostly for the sake of the LDAP
2419 attribute crossCertificatePair, but may prove useful elsewhere as
2423 *) Make it possible to inhibit symlinking of shared libraries in
2424 Makefile.shared, for Cygwin's sake.
2427 *) Extend the BIGNUM API by creating a function
2428 void BN_set_negative(BIGNUM *a, int neg);
2429 and a macro that behave like
2430 int BN_is_negative(const BIGNUM *a);
2432 to avoid the need to access 'a->neg' directly in applications.
2435 *) Implement fast modular reduction for pseudo-Mersenne primes
2436 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2437 EC_GROUP_new_curve_GFp() will now automatically use this
2439 [Nils Larsch <nla@trustcenter.de>]
2441 *) Add new lock type (CRYPTO_LOCK_BN).
2444 *) Change the ENGINE framework to automatically load engines
2445 dynamically from specific directories unless they could be
2446 found to already be built in or loaded. Move all the
2447 current engines except for the cryptodev one to a new
2449 The engines in engines/ are built as shared libraries if
2450 the "shared" options was given to ./Configure or ./config.
2451 Otherwise, they are inserted in libcrypto.a.
2452 /usr/local/ssl/engines is the default directory for dynamic
2453 engines, but that can be overriden at configure time through
2454 the usual use of --prefix and/or --openssldir, and at run
2455 time with the environment variable OPENSSL_ENGINES.
2456 [Geoff Thorpe and Richard Levitte]
2458 *) Add Makefile.shared, a helper makefile to build shared
2459 libraries. Addapt Makefile.org.
2462 *) Add version info to Win32 DLLs.
2463 [Peter 'Luna' Runestig" <peter@runestig.com>]
2465 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2466 can be added using this API to created arbitrary PKCS#12
2467 files while avoiding the low level API.
2469 New options to PKCS12_create(), key or cert can be NULL and
2470 will then be omitted from the output file. The encryption
2471 algorithm NIDs can be set to -1 for no encryption, the mac
2472 iteration count can be set to 0 to omit the mac.
2474 Enhance pkcs12 utility by making the -nokeys and -nocerts
2475 options work when creating a PKCS#12 file. New option -nomac
2476 to omit the mac, NONE can be set for an encryption algorithm.
2477 New code is modified to use the enhanced PKCS12_create()
2478 instead of the low level API.
2481 *) Extend ASN1 encoder to support indefinite length constructed
2482 encoding. This can output sequences tags and octet strings in
2483 this form. Modify pk7_asn1.c to support indefinite length
2484 encoding. This is experimental and needs additional code to
2485 be useful, such as an ASN1 bio and some enhanced streaming
2488 Extend template encode functionality so that tagging is passed
2489 down to the template encoder.
2492 *) Let 'openssl req' fail if an argument to '-newkey' is not
2493 recognized instead of using RSA as a default.
2496 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2497 As these are not official, they are not included in "ALL";
2498 the "ECCdraft" ciphersuite group alias can be used to select them.
2499 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2501 *) Add ECDH engine support.
2502 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2504 *) Add ECDH in new directory crypto/ecdh/.
2505 [Douglas Stebila (Sun Microsystems Laboratories)]
2507 *) Let BN_rand_range() abort with an error after 100 iterations
2508 without success (which indicates a broken PRNG).
2511 *) Change BN_mod_sqrt() so that it verifies that the input value
2512 is really the square of the return value. (Previously,
2513 BN_mod_sqrt would show GIGO behaviour.)
2516 *) Add named elliptic curves over binary fields from X9.62, SECG,
2517 and WAP/WTLS; add OIDs that were still missing.
2519 [Sheueling Chang Shantz and Douglas Stebila
2520 (Sun Microsystems Laboratories)]
2522 *) Extend the EC library for elliptic curves over binary fields
2523 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2526 EC_GF2m_simple_method
2530 EC_GROUP_new_curve_GF2m
2531 EC_GROUP_set_curve_GF2m
2532 EC_GROUP_get_curve_GF2m
2533 EC_POINT_set_affine_coordinates_GF2m
2534 EC_POINT_get_affine_coordinates_GF2m
2535 EC_POINT_set_compressed_coordinates_GF2m
2537 Point compression for binary fields is disabled by default for
2538 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2541 As binary polynomials are represented as BIGNUMs, various members
2542 of the EC_GROUP and EC_POINT data structures can be shared
2543 between the implementations for prime fields and binary fields;
2544 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2545 are essentially identical to their ..._GFp counterparts.
2546 (For simplicity, the '..._GFp' prefix has been dropped from
2547 various internal method names.)
2549 An internal 'field_div' method (similar to 'field_mul' and
2550 'field_sqr') has been added; this is used only for binary fields.
2552 [Sheueling Chang Shantz and Douglas Stebila
2553 (Sun Microsystems Laboratories)]
2555 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2556 through methods ('mul', 'precompute_mult').
2558 The generic implementations (now internally called 'ec_wNAF_mul'
2559 and 'ec_wNAF_precomputed_mult') remain the default if these
2560 methods are undefined.
2562 [Sheueling Chang Shantz and Douglas Stebila
2563 (Sun Microsystems Laboratories)]
2565 *) New function EC_GROUP_get_degree, which is defined through
2566 EC_METHOD. For curves over prime fields, this returns the bit
2567 length of the modulus.
2569 [Sheueling Chang Shantz and Douglas Stebila
2570 (Sun Microsystems Laboratories)]
2572 *) New functions EC_GROUP_dup, EC_POINT_dup.
2573 (These simply call ..._new and ..._copy).
2575 [Sheueling Chang Shantz and Douglas Stebila
2576 (Sun Microsystems Laboratories)]
2578 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2579 Polynomials are represented as BIGNUMs (where the sign bit is not
2580 used) in the following functions [macros]:
2583 BN_GF2m_sub [= BN_GF2m_add]
2584 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2585 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2586 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2588 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2589 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2590 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2591 BN_GF2m_cmp [= BN_ucmp]
2593 (Note that only the 'mod' functions are actually for fields GF(2^m).
2594 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2596 For some functions, an the irreducible polynomial defining a
2597 field can be given as an 'unsigned int[]' with strictly
2598 decreasing elements giving the indices of those bits that are set;
2599 i.e., p[] represents the polynomial
2600 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2602 p[0] > p[1] > ... > p[k] = 0.
2603 This applies to the following functions:
2608 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2609 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2611 BN_GF2m_mod_sqrt_arr
2612 BN_GF2m_mod_solve_quad_arr
2616 Conversion can be performed by the following functions:
2621 bntest.c has additional tests for binary polynomial arithmetic.
2623 Two implementations for BN_GF2m_mod_div() are available.
2624 The default algorithm simply uses BN_GF2m_mod_inv() and
2625 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2626 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2627 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2629 [Sheueling Chang Shantz and Douglas Stebila
2630 (Sun Microsystems Laboratories)]
2632 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2633 functionality is disabled at compile-time.
2634 [Douglas Stebila <douglas.stebila@sun.com>]
2636 *) Change default behaviour of 'openssl asn1parse' so that more
2637 information is visible when viewing, e.g., a certificate:
2639 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2640 mode the content of non-printable OCTET STRINGs is output in a
2641 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2642 avoid the appearance of a printable string.
2643 [Nils Larsch <nla@trustcenter.de>]
2645 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2647 EC_GROUP_set_asn1_flag()
2648 EC_GROUP_get_asn1_flag()
2649 EC_GROUP_set_point_conversion_form()
2650 EC_GROUP_get_point_conversion_form()
2651 These control ASN1 encoding details:
2652 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2653 has been set to OPENSSL_EC_NAMED_CURVE.
2654 - Points are encoded in uncompressed form by default; options for
2655 asn1_for are as for point2oct, namely
2656 POINT_CONVERSION_COMPRESSED
2657 POINT_CONVERSION_UNCOMPRESSED
2658 POINT_CONVERSION_HYBRID
2660 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2663 EC_GROUP_get0_seed()
2664 EC_GROUP_get_seed_len()
2665 This is used only for ASN1 purposes (so far).
2666 [Nils Larsch <nla@trustcenter.de>]
2668 *) Add 'field_type' member to EC_METHOD, which holds the NID
2669 of the appropriate field type OID. The new function
2670 EC_METHOD_get_field_type() returns this value.
2671 [Nils Larsch <nla@trustcenter.de>]
2676 EC_POINT_point2hex()
2677 EC_POINT_hex2point()
2678 providing useful interfaces to EC_POINT_point2oct() and
2679 EC_POINT_oct2point().
2680 [Nils Larsch <nla@trustcenter.de>]
2682 *) Change internals of the EC library so that the functions
2683 EC_GROUP_set_generator()
2684 EC_GROUP_get_generator()
2685 EC_GROUP_get_order()
2686 EC_GROUP_get_cofactor()
2687 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2688 to methods, which would lead to unnecessary code duplication when
2689 adding different types of curves.
2690 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2692 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2693 arithmetic, and such that modified wNAFs are generated
2694 (which avoid length expansion in many cases).
2697 *) Add a function EC_GROUP_check_discriminant() (defined via
2698 EC_METHOD) that verifies that the curve discriminant is non-zero.
2700 Add a function EC_GROUP_check() that makes some sanity tests
2701 on a EC_GROUP, its generator and order. This includes
2702 EC_GROUP_check_discriminant().
2703 [Nils Larsch <nla@trustcenter.de>]
2705 *) Add ECDSA in new directory crypto/ecdsa/.
2707 Add applications 'openssl ecparam' and 'openssl ecdsa'
2708 (these are based on 'openssl dsaparam' and 'openssl dsa').
2710 ECDSA support is also included in various other files across the
2711 library. Most notably,
2712 - 'openssl req' now has a '-newkey ecdsa:file' option;
2713 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2714 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2715 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2716 them suitable for ECDSA where domain parameters must be
2717 extracted before the specific public key;
2718 - ECDSA engine support has been added.
2719 [Nils Larsch <nla@trustcenter.de>]
2721 *) Include some named elliptic curves, and add OIDs from X9.62,
2722 SECG, and WAP/WTLS. Each curve can be obtained from the new
2724 EC_GROUP_new_by_curve_name(),
2725 and the list of available named curves can be obtained with
2726 EC_get_builtin_curves().
2727 Also add a 'curve_name' member to EC_GROUP objects, which can be
2729 EC_GROUP_set_curve_name()
2730 EC_GROUP_get_curve_name()
2731 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2733 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2734 was actually never needed) and in BN_mul(). The removal in BN_mul()
2735 required a small change in bn_mul_part_recursive() and the addition
2736 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2737 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2738 bn_sub_words() and bn_add_words() except they take arrays with
2742 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2744 *) Cleanse PEM buffers before freeing them since they may contain
2746 [Benjamin Bennett <ben@psc.edu>]
2748 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2749 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2750 authentication-only ciphersuites.
2753 *) Since AES128 and AES256 share a single mask bit in the logic of
2754 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2755 kludge to work properly if AES128 is available and AES256 isn't.
2758 *) Expand security boundary to match 1.1.1 module.
2761 *) Remove redundant features: hash file source, editing of test vectors
2762 modify fipsld to use external fips_premain.c signature.
2765 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2766 run algorithm test programs.
2769 *) Make algorithm test programs more tolerant of whitespace.
2772 *) Have SSL/TLS server implementation tolerate "mismatched" record
2773 protocol version while receiving ClientHello even if the
2774 ClientHello is fragmented. (The server can't insist on the
2775 particular protocol version it has chosen before the ServerHello
2776 message has informed the client about his choice.)
2779 *) Load error codes if they are not already present instead of using a
2780 static variable. This allows them to be cleanly unloaded and reloaded.
2783 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2785 *) Introduce limits to prevent malicious keys being able to
2786 cause a denial of service. (CVE-2006-2940)
2787 [Steve Henson, Bodo Moeller]
2789 *) Fix ASN.1 parsing of certain invalid structures that can result
2790 in a denial of service. (CVE-2006-2937) [Steve Henson]
2792 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2793 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2795 *) Fix SSL client code which could crash if connecting to a
2796 malicious SSLv2 server. (CVE-2006-4343)
2797 [Tavis Ormandy and Will Drewry, Google Security Team]
2799 *) Change ciphersuite string processing so that an explicit
2800 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2801 will no longer include "AES128-SHA"), and any other similar
2802 ciphersuite (same bitmap) from *other* protocol versions (so that
2803 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2804 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2805 changes from 0.9.8b and 0.9.8d.
2808 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2810 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2811 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2813 *) Change the Unix randomness entropy gathering to use poll() when
2814 possible instead of select(), since the latter has some
2815 undesirable limitations.
2816 [Darryl Miles via Richard Levitte and Bodo Moeller]
2818 *) Disable rogue ciphersuites:
2820 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2821 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2822 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2824 The latter two were purportedly from
2825 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2828 Also deactive the remaining ciphersuites from
2829 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2830 unofficial, and the ID has long expired.
2833 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2834 dual-core machines) and other potential thread-safety issues.
2837 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2839 *) Adapt fipsld and the build system to link against the validated FIPS
2840 module in FIPS mode.
2843 *) Fixes for VC++ 2005 build under Windows.
2846 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2847 from a Windows bash shell such as MSYS. It is autodetected from the
2848 "config" script when run from a VC++ environment. Modify standard VC++
2849 build to use fipscanister.o from the GNU make build.
2852 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2854 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2855 The value now differs depending on if you build for FIPS or not.
2856 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2857 safely run with a non-FIPSed libcrypto, as it may crash because of
2858 the difference induced by this change.
2861 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2863 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2864 (part of SSL_OP_ALL). This option used to disable the
2865 countermeasure against man-in-the-middle protocol-version
2866 rollback in the SSL 2.0 server implementation, which is a bad
2867 idea. (CVE-2005-2969)
2869 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2870 for Information Security, National Institute of Advanced Industrial
2871 Science and Technology [AIST], Japan)]
2873 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2874 mainly for FIPS compliance and not fully integrated at this stage.
2877 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2878 the exponentiation using a fixed-length exponent. (Otherwise,
2879 the information leaked through timing could expose the secret key
2880 after many signatures; cf. Bleichenbacher's attack on DSA with
2884 *) Make a new fixed-window mod_exp implementation the default for
2885 RSA, DSA, and DH private-key operations so that the sequence of
2886 squares and multiplies and the memory access pattern are
2887 independent of the particular secret key. This will mitigate
2888 cache-timing and potential related attacks.
2890 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2891 and this is automatically used by BN_mod_exp_mont() if the new flag
2892 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2893 will use this BN flag for private exponents unless the flag
2894 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2895 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2897 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2899 *) Change the client implementation for SSLv23_method() and
2900 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2901 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2902 (Previously, the SSL 2.0 backwards compatible Client Hello
2903 message format would be used even with SSL_OP_NO_SSLv2.)
2906 *) Add support for smime-type MIME parameter in S/MIME messages which some
2910 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2911 a threadsafe manner. Modify rsa code to use new function and add calls
2912 to dsa and dh code (which had race conditions before).
2915 *) Include the fixed error library code in the C error file definitions
2916 instead of fixing them up at runtime. This keeps the error code
2917 structures constant.
2920 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2922 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2925 *) Fixes for newer kerberos headers. NB: the casts are needed because
2926 the 'length' field is signed on one version and unsigned on another
2927 with no (?) obvious way to tell the difference, without these VC++
2928 complains. Also the "definition" of FAR (blank) is no longer included
2929 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2930 some needed definitions.
2933 *) Undo Cygwin change.
2936 *) Added support for proxy certificates according to RFC 3820.
2937 Because they may be a security thread to unaware applications,
2938 they must be explicitely allowed in run-time. See
2939 docs/HOWTO/proxy_certificates.txt for further information.
2942 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2944 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2945 server and client random values. Previously
2946 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2947 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2949 This change has negligible security impact because:
2951 1. Server and client random values still have 24 bytes of pseudo random
2954 2. Server and client random values are sent in the clear in the initial
2957 3. The master secret is derived using the premaster secret (48 bytes in
2958 size for static RSA ciphersuites) as well as client server and random
2961 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2964 [Stephen Henson, reported by UK NISCC]
2966 *) Use Windows randomness collection on Cygwin.
2969 *) Fix hang in EGD/PRNGD query when communication socket is closed
2970 prematurely by EGD/PRNGD.
2971 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2973 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2976 *) Back-port of selected performance improvements from development
2977 branch, as well as improved support for PowerPC platforms.
2980 *) Add lots of checks for memory allocation failure, error codes to indicate
2981 failure and freeing up memory if a failure occurs.
2982 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2984 *) Add new -passin argument to dgst.
2987 *) Perform some character comparisons of different types in X509_NAME_cmp:
2988 this is needed for some certificates that reencode DNs into UTF8Strings
2989 (in violation of RFC3280) and can't or wont issue name rollover
2993 *) Make an explicit check during certificate validation to see that
2994 the CA setting in each certificate on the chain is correct. As a
2995 side effect always do the following basic checks on extensions,
2996 not just when there's an associated purpose to the check:
2998 - if there is an unhandled critical extension (unless the user
2999 has chosen to ignore this fault)
3000 - if the path length has been exceeded (if one is set at all)
3001 - that certain extensions fit the associated purpose (if one has
3005 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3007 *) Avoid a race condition when CRLs are checked in a multi threaded
3008 environment. This would happen due to the reordering of the revoked
3009 entries during signature checking and serial number lookup. Now the
3010 encoding is cached and the serial number sort performed under a lock.
3011 Add new STACK function sk_is_sorted().
3014 *) Add Delta CRL to the extension code.
3017 *) Various fixes to s3_pkt.c so alerts are sent properly.
3018 [David Holmes <d.holmes@f5.com>]
3020 *) Reduce the chances of duplicate issuer name and serial numbers (in
3021 violation of RFC3280) using the OpenSSL certificate creation utilities.
3022 This is done by creating a random 64 bit value for the initial serial
3023 number when a serial number file is created or when a self signed
3024 certificate is created using 'openssl req -x509'. The initial serial
3025 number file is created using 'openssl x509 -next_serial' in CA.pl
3026 rather than being initialized to 1.
3029 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3031 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3032 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3033 [Joe Orton, Steve Henson]
3035 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3037 [Joe Orton, Steve Henson]
3039 *) Make it possible to have multiple active certificates with the same
3040 subject in the CA index file. This is done only if the keyword
3041 'unique_subject' is set to 'no' in the main CA section (default
3042 if 'CA_default') of the configuration file. The value is saved
3043 with the database itself in a separate index attribute file,
3044 named like the index file with '.attr' appended to the name.
3047 *) X509 verify fixes. Disable broken certificate workarounds when
3048 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3049 keyUsage extension present. Don't accept CRLs with unhandled critical
3050 extensions: since verify currently doesn't process CRL extensions this
3051 rejects a CRL with *any* critical extensions. Add new verify error codes
3055 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3056 A clarification of RFC2560 will require the use of OCTET STRINGs and
3057 some implementations cannot handle the current raw format. Since OpenSSL
3058 copies and compares OCSP nonces as opaque blobs without any attempt at
3059 parsing them this should not create any compatibility issues.
3062 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3063 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3064 this HMAC (and other) operations are several times slower than OpenSSL
3068 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3069 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3071 *) Use the correct content when signing type "other".
3074 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3076 *) Fix various bugs revealed by running the NISCC test suite:
3078 Stop out of bounds reads in the ASN1 code when presented with
3079 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3081 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3083 If verify callback ignores invalid public key errors don't try to check
3084 certificate signature with the NULL public key.
3088 *) New -ignore_err option in ocsp application to stop the server
3089 exiting on the first error in a request.
3092 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3093 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3097 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3098 extra data after the compression methods not only for TLS 1.0
3099 but also for SSL 3.0 (as required by the specification).
3100 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3102 *) Change X509_certificate_type() to mark the key as exported/exportable
3103 when it's 512 *bits* long, not 512 bytes.
3106 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3107 blocks during encryption.
3110 *) Various fixes to base64 BIO and non blocking I/O. On write
3111 flushes were not handled properly if the BIO retried. On read
3112 data was not being buffered properly and had various logic bugs.
3113 This also affects blocking I/O when the data being decoded is a
3117 *) Various S/MIME bugfixes and compatibility changes:
3118 output correct application/pkcs7 MIME type if
3119 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3120 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3121 of files as .eml work). Correctly handle very long lines in MIME
3125 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3127 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3128 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3129 a protocol version number mismatch like a decryption error
3130 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3133 *) Turn on RSA blinding by default in the default implementation
3134 to avoid a timing attack. Applications that don't want it can call
3135 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3136 They would be ill-advised to do so in most cases.
3137 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3139 *) Change RSA blinding code so that it works when the PRNG is not
3140 seeded (in this case, the secret RSA exponent is abused as
3141 an unpredictable seed -- if it is not unpredictable, there
3142 is no point in blinding anyway). Make RSA blinding thread-safe
3143 by remembering the creator's thread ID in rsa->blinding and
3144 having all other threads use local one-time blinding factors
3145 (this requires more computation than sharing rsa->blinding, but
3146 avoids excessive locking; and if an RSA object is not shared
3147 between threads, blinding will still be very fast).
3150 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3151 ENGINE as defaults for all supported algorithms irrespective of
3152 the 'flags' parameter. 'flags' is now honoured, so applications
3153 should make sure they are passing it correctly.
3156 *) Target "mingw" now allows native Windows code to be generated in
3157 the Cygwin environment as well as with the MinGW compiler.
3160 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3162 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3163 via timing by performing a MAC computation even if incorrrect
3164 block cipher padding has been found. This is a countermeasure
3165 against active attacks where the attacker has to distinguish
3166 between bad padding and a MAC verification error. (CVE-2003-0078)
3168 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3169 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3170 Martin Vuagnoux (EPFL, Ilion)]
3172 *) Make the no-err option work as intended. The intention with no-err
3173 is not to have the whole error stack handling routines removed from
3174 libcrypto, it's only intended to remove all the function name and
3175 reason texts, thereby removing some of the footprint that may not
3176 be interesting if those errors aren't displayed anyway.
3178 NOTE: it's still possible for any application or module to have it's
3179 own set of error texts inserted. The routines are there, just not
3180 used by default when no-err is given.
3183 *) Add support for FreeBSD on IA64.
3184 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3186 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3187 Kerberos function mit_des_cbc_cksum(). Before this change,
3188 the value returned by DES_cbc_cksum() was like the one from
3189 mit_des_cbc_cksum(), except the bytes were swapped.
3190 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3192 *) Allow an application to disable the automatic SSL chain building.
3193 Before this a rather primitive chain build was always performed in
3194 ssl3_output_cert_chain(): an application had no way to send the
3195 correct chain if the automatic operation produced an incorrect result.
3197 Now the chain builder is disabled if either:
3199 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3201 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3203 The reasoning behind this is that an application would not want the
3204 auto chain building to take place if extra chain certificates are
3205 present and it might also want a means of sending no additional
3206 certificates (for example the chain has two certificates and the
3210 *) Add the possibility to build without the ENGINE framework.
3211 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3213 *) Under Win32 gmtime() can return NULL: check return value in
3214 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3217 *) DSA routines: under certain error conditions uninitialized BN objects
3218 could be freed. Solution: make sure initialization is performed early
3219 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3220 Nils Larsch <nla@trustcenter.de> via PR#459)
3223 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3224 checked on reconnect on the client side, therefore session resumption
3225 could still fail with a "ssl session id is different" error. This
3226 behaviour is masked when SSL_OP_ALL is used due to
3227 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3228 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3229 followup to PR #377.
3232 *) IA-32 assembler support enhancements: unified ELF targets, support
3233 for SCO/Caldera platforms, fix for Cygwin shared build.
3236 *) Add support for FreeBSD on sparc64. As a consequence, support for
3237 FreeBSD on non-x86 processors is separate from x86 processors on
3238 the config script, much like the NetBSD support.
3239 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3241 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3243 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3246 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3247 code (06) was taken as the first octet of the session ID and the last
3248 octet was ignored consequently. As a result SSLv2 client side session
3249 caching could not have worked due to the session ID mismatch between
3251 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3255 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3256 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3260 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3261 seems that in spite of existing for more than a year, many application
3262 author have done nothing to provide the necessary callbacks, which
3263 means that this particular engine will not work properly anywhere.
3264 This is a very unfortunate situation which forces us, in the name
3265 of usability, to give the hw_ncipher.c a static lock, which is part
3267 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3268 appear in 0.9.8 or later. We EXPECT application authors to have
3269 dealt properly with this when 0.9.8 is released (unless we actually
3270 make such changes in the libcrypto locking code that changes will
3271 have to be made anyway).
3274 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3275 octets have been read, EOF or an error occurs. Without this change
3276 some truncated ASN1 structures will not produce an error.
3279 *) Disable Heimdal support, since it hasn't been fully implemented.
3280 Still give the possibility to force the use of Heimdal, but with
3281 warnings and a request that patches get sent to openssl-dev.
3284 *) Add the VC-CE target, introduce the WINCE sysname, and add
3285 INSTALL.WCE and appropriate conditionals to make it build.
3286 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3288 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3289 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3290 edit numbers of the version.
3291 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3293 *) Introduce safe string copy and catenation functions
3294 (BUF_strlcpy() and BUF_strlcat()).
3295 [Ben Laurie (CHATS) and Richard Levitte]
3297 *) Avoid using fixed-size buffers for one-line DNs.
3298 [Ben Laurie (CHATS)]
3300 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3301 resizing buffers containing secrets, and use where appropriate.
3302 [Ben Laurie (CHATS)]
3304 *) Avoid using fixed size buffers for configuration file location.
3305 [Ben Laurie (CHATS)]
3307 *) Avoid filename truncation for various CA files.
3308 [Ben Laurie (CHATS)]
3310 *) Use sizeof in preference to magic numbers.
3311 [Ben Laurie (CHATS)]
3313 *) Avoid filename truncation in cert requests.
3314 [Ben Laurie (CHATS)]
3316 *) Add assertions to check for (supposedly impossible) buffer
3318 [Ben Laurie (CHATS)]
3320 *) Don't cache truncated DNS entries in the local cache (this could
3321 potentially lead to a spoofing attack).
3322 [Ben Laurie (CHATS)]
3324 *) Fix various buffers to be large enough for hex/decimal
3325 representations in a platform independent manner.
3326 [Ben Laurie (CHATS)]
3328 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3329 resizing buffers containing secrets, and use where appropriate.
3330 [Ben Laurie (CHATS)]
3332 *) Add BIO_indent() to avoid much slightly worrying code to do
3334 [Ben Laurie (CHATS)]
3336 *) Convert sprintf()/BIO_puts() to BIO_printf().
3337 [Ben Laurie (CHATS)]
3339 *) buffer_gets() could terminate with the buffer only half
3341 [Ben Laurie (CHATS)]
3343 *) Add assertions to prevent user-supplied crypto functions from
3344 overflowing internal buffers by having large block sizes, etc.
3345 [Ben Laurie (CHATS)]
3347 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3349 [Ben Laurie (CHATS)]
3351 *) Eliminate unused copy of key in RC4.
3352 [Ben Laurie (CHATS)]
3354 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3355 [Ben Laurie (CHATS)]
3357 *) Fix off-by-one error in EGD path.
3358 [Ben Laurie (CHATS)]
3360 *) If RANDFILE path is too long, ignore instead of truncating.
3361 [Ben Laurie (CHATS)]
3363 *) Eliminate unused and incorrectly sized X.509 structure
3365 [Ben Laurie (CHATS)]
3367 *) Eliminate unused and dangerous function knumber().
3368 [Ben Laurie (CHATS)]
3370 *) Eliminate unused and dangerous structure, KSSL_ERR.
3371 [Ben Laurie (CHATS)]
3373 *) Protect against overlong session ID context length in an encoded
3374 session object. Since these are local, this does not appear to be
3376 [Ben Laurie (CHATS)]
3378 *) Change from security patch (see 0.9.6e below) that did not affect
3379 the 0.9.6 release series:
3381 Remote buffer overflow in SSL3 protocol - an attacker could
3382 supply an oversized master key in Kerberos-enabled versions.
3384 [Ben Laurie (CHATS)]
3386 *) Change the SSL kerb5 codes to match RFC 2712.
3389 *) Make -nameopt work fully for req and add -reqopt switch.
3390 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3392 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3393 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3395 *) Make sure tests can be performed even if the corresponding algorithms
3396 have been removed entirely. This was also the last step to make
3397 OpenSSL compilable with DJGPP under all reasonable conditions.
3398 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3400 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3401 to allow version independent disabling of normally unselected ciphers,
3402 which may be activated as a side-effect of selecting a single cipher.
3404 (E.g., cipher list string "RSA" enables ciphersuites that are left
3405 out of "ALL" because they do not provide symmetric encryption.
3406 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3407 [Lutz Jaenicke, Bodo Moeller]
3409 *) Add appropriate support for separate platform-dependent build
3410 directories. The recommended way to make a platform-dependent
3411 build directory is the following (tested on Linux), maybe with
3414 # Place yourself outside of the OpenSSL source tree. In
3415 # this example, the environment variable OPENSSL_SOURCE
3416 # is assumed to contain the absolute OpenSSL source directory.
3417 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3418 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3419 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3420 mkdir -p `dirname $F`
3421 ln -s $OPENSSL_SOURCE/$F $F
3424 To be absolutely sure not to disturb the source tree, a "make clean"
3425 is a good thing. If it isn't successfull, don't worry about it,
3426 it probably means the source directory is very clean.
3429 *) Make sure any ENGINE control commands make local copies of string
3430 pointers passed to them whenever necessary. Otherwise it is possible
3431 the caller may have overwritten (or deallocated) the original string
3432 data when a later ENGINE operation tries to use the stored values.
3433 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3435 *) Improve diagnostics in file reading and command-line digests.
3436 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3438 *) Add AES modes CFB and OFB to the object database. Correct an
3439 error in AES-CFB decryption.
3442 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3443 allows existing EVP_CIPHER_CTX structures to be reused after
3444 calling EVP_*Final(). This behaviour is used by encryption
3445 BIOs and some applications. This has the side effect that
3446 applications must explicitly clean up cipher contexts with
3447 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3450 *) Check the values of dna and dnb in bn_mul_recursive before calling
3451 bn_mul_comba (a non zero value means the a or b arrays do not contain
3452 n2 elements) and fallback to bn_mul_normal if either is not zero.
3455 *) Fix escaping of non-ASCII characters when using the -subj option
3456 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3459 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3460 form for "surname", serialNumber has no short form.
3461 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3462 therefore remove "mail" short name for "internet 7".
3463 The OID for unique identifiers in X509 certificates is
3464 x500UniqueIdentifier, not uniqueIdentifier.
3465 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3468 *) Add an "init" command to the ENGINE config module and auto initialize
3469 ENGINEs. Without any "init" command the ENGINE will be initialized
3470 after all ctrl commands have been executed on it. If init=1 the
3471 ENGINE is initailized at that point (ctrls before that point are run
3472 on the uninitialized ENGINE and after on the initialized one). If
3473 init=0 then the ENGINE will not be iniatialized at all.
3476 *) Fix the 'app_verify_callback' interface so that the user-defined
3477 argument is actually passed to the callback: In the
3478 SSL_CTX_set_cert_verify_callback() prototype, the callback
3479 declaration has been changed from
3482 int (*cb)(X509_STORE_CTX *,void *);
3483 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3484 i=s->ctx->app_verify_callback(&ctx)
3485 has been changed into
3486 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3488 To update applications using SSL_CTX_set_cert_verify_callback(),
3489 a dummy argument can be added to their callback functions.
3490 [D. K. Smetters <smetters@parc.xerox.com>]
3492 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3493 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3495 *) Add and OPENSSL_LOAD_CONF define which will cause
3496 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3497 This allows older applications to transparently support certain
3498 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3499 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3500 load the config file and OPENSSL_add_all_algorithms_conf() which will
3501 always load it have also been added.
3504 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3505 Adjust NIDs and EVP layer.
3506 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3508 *) Config modules support in openssl utility.
3510 Most commands now load modules from the config file,
3511 though in a few (such as version) this isn't done
3512 because it couldn't be used for anything.
3514 In the case of ca and req the config file used is
3515 the same as the utility itself: that is the -config
3516 command line option can be used to specify an
3520 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3521 use "openssl_conf" if filename is NULL use default openssl config file.
3524 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3525 config section name. Add a new flag to tolerate a missing config file
3526 and move code to CONF_modules_load_file().
3529 *) Support for crypto accelerator cards from Accelerated Encryption
3530 Processing, www.aep.ie. (Use engine 'aep')
3531 The support was copied from 0.9.6c [engine] and adapted/corrected
3532 to work with the new engine framework.
3533 [AEP Inc. and Richard Levitte]
3535 *) Support for SureWare crypto accelerator cards from Baltimore
3536 Technologies. (Use engine 'sureware')
3537 The support was copied from 0.9.6c [engine] and adapted
3538 to work with the new engine framework.
3541 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3542 make the newer ENGINE framework commands for the CHIL engine work.
3543 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3545 *) Make it possible to produce shared libraries on ReliantUNIX.
3546 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3548 *) Add the configuration target debug-linux-ppro.
3549 Make 'openssl rsa' use the general key loading routines
3550 implemented in apps.c, and make those routines able to
3551 handle the key format FORMAT_NETSCAPE and the variant
3553 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3555 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3556 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3558 *) Add -keyform to rsautl, and document -engine.
3559 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3561 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3562 BIO_R_NO_SUCH_FILE error code rather than the generic
3563 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3566 *) Add new functions
3568 ERR_peek_last_error_line
3569 ERR_peek_last_error_line_data.
3570 These are similar to
3573 ERR_peek_error_line_data,
3574 but report on the latest error recorded rather than the first one
3575 still in the error queue.
3576 [Ben Laurie, Bodo Moeller]
3578 *) default_algorithms option in ENGINE config module. This allows things
3580 default_algorithms = ALL
3581 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3584 *) Prelminary ENGINE config module.
3587 *) New experimental application configuration code.
3590 *) Change the AES code to follow the same name structure as all other
3591 symmetric ciphers, and behave the same way. Move everything to
3592 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3593 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3595 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3596 [Ben Laurie and Theo de Raadt]
3598 *) Add option to output public keys in req command.
3599 [Massimiliano Pala madwolf@openca.org]
3601 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3602 (up to about 10% better than before for P-192 and P-224).
3605 *) New functions/macros
3607 SSL_CTX_set_msg_callback(ctx, cb)
3608 SSL_CTX_set_msg_callback_arg(ctx, arg)
3609 SSL_set_msg_callback(ssl, cb)
3610 SSL_set_msg_callback_arg(ssl, arg)
3612 to request calling a callback function
3614 void cb(int write_p, int version, int content_type,
3615 const void *buf, size_t len, SSL *ssl, void *arg)
3617 whenever a protocol message has been completely received
3618 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3619 protocol version according to which the SSL library interprets
3620 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3621 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3622 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3623 specification (change_cipher_spec(20), alert(21), handshake(22)).
3624 'buf' and 'len' point to the actual message, 'ssl' to the
3625 SSL object, and 'arg' is the application-defined value set by
3626 SSL[_CTX]_set_msg_callback_arg().
3628 'openssl s_client' and 'openssl s_server' have new '-msg' options
3629 to enable a callback that displays all protocol messages.
3632 *) Change the shared library support so shared libraries are built as
3633 soon as the corresponding static library is finished, and thereby get
3634 openssl and the test programs linked against the shared library.
3635 This still only happens when the keyword "shard" has been given to
3636 the configuration scripts.
3638 NOTE: shared library support is still an experimental thing, and
3639 backward binary compatibility is still not guaranteed.
3640 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3642 *) Add support for Subject Information Access extension.
3643 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3645 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3646 additional bytes when new memory had to be allocated, not just
3647 when reusing an existing buffer.
3650 *) New command line and configuration option 'utf8' for the req command.
3651 This allows field values to be specified as UTF8 strings.
3654 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3655 runs for the former and machine-readable output for the latter.
3658 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3659 of the e-mail address in the DN (i.e., it will go into a certificate
3660 extension only). The new configuration file option 'email_in_dn = no'
3661 has the same effect.
3662 [Massimiliano Pala madwolf@openca.org]
3664 *) Change all functions with names starting with des_ to be starting
3665 with DES_ instead. Add wrappers that are compatible with libdes,
3666 but are named _ossl_old_des_*. Finally, add macros that map the
3667 des_* symbols to the corresponding _ossl_old_des_* if libdes
3668 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3669 desired, the des_* symbols will be mapped to DES_*, with one
3672 Since we provide two compatibility mappings, the user needs to
3673 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3674 compatibility is desired. The default (i.e., when that macro
3675 isn't defined) is OpenSSL 0.9.6c compatibility.
3677 There are also macros that enable and disable the support of old
3678 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3679 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3680 are defined, the default will apply: to support the old des routines.
3682 In either case, one must include openssl/des.h to get the correct
3683 definitions. Do not try to just include openssl/des_old.h, that
3686 NOTE: This is a major break of an old API into a new one. Software
3687 authors are encouraged to switch to the DES_ style functions. Some
3688 time in the future, des_old.h and the libdes compatibility functions
3689 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3690 default), and then completely removed.
3693 *) Test for certificates which contain unsupported critical extensions.
3694 If such a certificate is found during a verify operation it is
3695 rejected by default: this behaviour can be overridden by either
3696 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3697 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3698 X509_supported_extension() has also been added which returns 1 if a
3699 particular extension is supported.
3702 *) Modify the behaviour of EVP cipher functions in similar way to digests
3703 to retain compatibility with existing code.
3706 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3707 compatibility with existing code. In particular the 'ctx' parameter does
3708 not have to be to be initialized before the call to EVP_DigestInit() and
3709 it is tidied up after a call to EVP_DigestFinal(). New function
3710 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3711 EVP_MD_CTX_copy() changed to not require the destination to be
3712 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3713 requires the destination to be valid.
3715 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3716 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3719 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3720 so that complete 'Handshake' protocol structures are kept in memory
3721 instead of overwriting 'msg_type' and 'length' with 'body' data.
3724 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3725 [Massimo Santin via Richard Levitte]
3727 *) Major restructuring to the underlying ENGINE code. This includes
3728 reduction of linker bloat, separation of pure "ENGINE" manipulation
3729 (initialisation, etc) from functionality dealing with implementations
3730 of specific crypto iterfaces. This change also introduces integrated
3731 support for symmetric ciphers and digest implementations - so ENGINEs
3732 can now accelerate these by providing EVP_CIPHER and EVP_MD
3733 implementations of their own. This is detailed in crypto/engine/README
3734 as it couldn't be adequately described here. However, there are a few
3735 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3736 were changed in the original introduction of ENGINE code have now
3737 reverted back - the hooking from this code to ENGINE is now a good
3738 deal more passive and at run-time, operations deal directly with
3739 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3740 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3741 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3742 they were not being used by the framework as there is no concept of a
3743 BIGNUM_METHOD and they could not be generalised to the new
3744 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3745 ENGINE_cpy() has been removed as it cannot be consistently defined in
3749 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3752 *) Change mkdef.pl to sort symbols that get the same entry number,
3753 and make sure the automatically generated functions ERR_load_*
3754 become part of libeay.num as well.
3757 *) New function SSL_renegotiate_pending(). This returns true once
3758 renegotiation has been requested (either SSL_renegotiate() call
3759 or HelloRequest/ClientHello receveived from the peer) and becomes
3760 false once a handshake has been completed.
3761 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3762 sends a HelloRequest, but does not ensure that a handshake takes
3763 place. SSL_renegotiate_pending() is useful for checking if the
3764 client has followed the request.)
3767 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3768 By default, clients may request session resumption even during
3769 renegotiation (if session ID contexts permit); with this option,
3770 session resumption is possible only in the first handshake.
3772 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3773 more bits available for options that should not be part of
3774 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3777 *) Add some demos for certificate and certificate request creation.
3780 *) Make maximum certificate chain size accepted from the peer application
3781 settable (SSL*_get/set_max_cert_list()), as proposed by
3782 "Douglas E. Engert" <deengert@anl.gov>.
3785 *) Add support for shared libraries for Unixware-7
3786 (Boyd Lynn Gerber <gerberb@zenez.com>).
3789 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3790 be done prior to destruction. Use this to unload error strings from
3791 ENGINEs that load their own error strings. NB: This adds two new API
3792 functions to "get" and "set" this destroy handler in an ENGINE.
3795 *) Alter all existing ENGINE implementations (except "openssl" and
3796 "openbsd") to dynamically instantiate their own error strings. This
3797 makes them more flexible to be built both as statically-linked ENGINEs
3798 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3799 Also, add stub code to each that makes building them as self-contained
3800 shared-libraries easier (see README.ENGINE).
3803 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3804 implementations into applications that are completely implemented in
3805 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3806 commands that can be used to configure what shared-library to load and
3807 to control aspects of the way it is handled. Also, made an update to
3808 the README.ENGINE file that brings its information up-to-date and
3809 provides some information and instructions on the "dynamic" ENGINE
3810 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3813 *) Make it possible to unload ranges of ERR strings with a new
3814 "ERR_unload_strings" function.
3817 *) Add a copy() function to EVP_MD.
3820 *) Make EVP_MD routines take a context pointer instead of just the
3821 md_data void pointer.
3824 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3825 that the digest can only process a single chunk of data
3826 (typically because it is provided by a piece of
3827 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3828 is only going to provide a single chunk of data, and hence the
3829 framework needn't accumulate the data for oneshot drivers.
3832 *) As with "ERR", make it possible to replace the underlying "ex_data"
3833 functions. This change also alters the storage and management of global
3834 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3835 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3836 index counters. The API functions that use this state have been changed
3837 to take a "class_index" rather than pointers to the class's local STACK
3838 and counter, and there is now an API function to dynamically create new
3839 classes. This centralisation allows us to (a) plug a lot of the
3840 thread-safety problems that existed, and (b) makes it possible to clean
3841 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3842 such data would previously have always leaked in application code and
3843 workarounds were in place to make the memory debugging turn a blind eye
3844 to it. Application code that doesn't use this new function will still
3845 leak as before, but their memory debugging output will announce it now
3846 rather than letting it slide.
3848 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3849 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3850 has a return value to indicate success or failure.
3853 *) Make it possible to replace the underlying "ERR" functions such that the
3854 global state (2 LHASH tables and 2 locks) is only used by the "default"
3855 implementation. This change also adds two functions to "get" and "set"
3856 the implementation prior to it being automatically set the first time
3857 any other ERR function takes place. Ie. an application can call "get",
3858 pass the return value to a module it has just loaded, and that module
3859 can call its own "set" function using that value. This means the
3860 module's "ERR" operations will use (and modify) the error state in the
3861 application and not in its own statically linked copy of OpenSSL code.
3864 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3865 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3866 the operation, and provides a more encapsulated way for external code
3867 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3868 to use these functions rather than manually incrementing the counts.
3870 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3873 *) Add EVP test program.
3876 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3879 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3880 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3881 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3882 These allow a CRL to be built without having to access X509_CRL fields
3883 directly. Modify 'ca' application to use new functions.
3886 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3887 bug workarounds. Rollback attack detection is a security feature.
3888 The problem will only arise on OpenSSL servers when TLSv1 is not
3889 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3890 Software authors not wanting to support TLSv1 will have special reasons
3891 for their choice and can explicitly enable this option.
3892 [Bodo Moeller, Lutz Jaenicke]
3894 *) Rationalise EVP so it can be extended: don't include a union of
3895 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3896 (similar to those existing for EVP_CIPHER_CTX).
3901 EVP_MD_CTX_init(&md); /* new function call */
3902 EVP_DigestInit(&md, EVP_sha1());
3903 EVP_DigestUpdate(&md, in, len);
3904 EVP_DigestFinal(&md, out, NULL);
3905 EVP_MD_CTX_cleanup(&md); /* new function call */
3909 *) Make DES key schedule conform to the usual scheme, as well as
3910 correcting its structure. This means that calls to DES functions
3911 now have to pass a pointer to a des_key_schedule instead of a
3912 plain des_key_schedule (which was actually always a pointer
3915 des_key_schedule ks;
3917 des_set_key_checked(..., &ks);
3918 des_ncbc_encrypt(..., &ks, ...);
3920 (Note that a later change renames 'des_...' into 'DES_...'.)
3923 *) Initial reduction of linker bloat: the use of some functions, such as
3924 PEM causes large amounts of unused functions to be linked in due to
3925 poor organisation. For example pem_all.c contains every PEM function
3926 which has a knock on effect of linking in large amounts of (unused)
3927 ASN1 code. Grouping together similar functions and splitting unrelated
3928 functions prevents this.
3931 *) Cleanup of EVP macros.
3934 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3935 correct _ecb suffix.
3938 *) Add initial OCSP responder support to ocsp application. The
3939 revocation information is handled using the text based index
3940 use by the ca application. The responder can either handle
3941 requests generated internally, supplied in files (for example
3942 via a CGI script) or using an internal minimal server.
3945 *) Add configuration choices to get zlib compression for TLS.
3948 *) Changes to Kerberos SSL for RFC 2712 compliance:
3949 1. Implemented real KerberosWrapper, instead of just using
3950 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3951 2. Implemented optional authenticator field of KerberosWrapper.
3953 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3954 and authenticator structs; see crypto/krb5/.
3956 Generalized Kerberos calls to support multiple Kerberos libraries.
3957 [Vern Staats <staatsvr@asc.hpc.mil>,
3958 Jeffrey Altman <jaltman@columbia.edu>
3959 via Richard Levitte]
3961 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3962 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3963 values for each of the key sizes rather than having just
3964 parameters (and 'speed' generating keys each time).
3967 *) Speed up EVP routines.
3970 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3971 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3972 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3973 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3975 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3976 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3977 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3980 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3982 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3985 *) Added the OS2-EMX target.
3986 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3988 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3989 to support NCONF routines in extension code. New function CONF_set_nconf()
3990 to allow functions which take an NCONF to also handle the old LHASH
3991 structure: this means that the old CONF compatible routines can be
3992 retained (in particular wrt extensions) without having to duplicate the
3993 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3996 *) Enhance the general user interface with mechanisms for inner control
3997 and with possibilities to have yes/no kind of prompts.
4000 *) Change all calls to low level digest routines in the library and
4001 applications to use EVP. Add missing calls to HMAC_cleanup() and
4002 don't assume HMAC_CTX can be copied using memcpy().
4003 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4005 *) Add the possibility to control engines through control names but with
4006 arbitrary arguments instead of just a string.
4007 Change the key loaders to take a UI_METHOD instead of a callback
4008 function pointer. NOTE: this breaks binary compatibility with earlier
4009 versions of OpenSSL [engine].
4010 Adapt the nCipher code for these new conditions and add a card insertion
4014 *) Enhance the general user interface with mechanisms to better support
4015 dialog box interfaces, application-defined prompts, the possibility
4016 to use defaults (for example default passwords from somewhere else)
4017 and interrupts/cancellations.
4020 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4021 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4024 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4025 tidy up some unnecessarily weird code in 'sk_new()').
4026 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4028 *) Change the key loading routines for ENGINEs to use the same kind
4029 callback (pem_password_cb) as all other routines that need this
4033 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4034 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4035 than this minimum value is recommended.
4038 *) New random seeder for OpenVMS, using the system process statistics
4039 that are easily reachable.
4042 *) Windows apparently can't transparently handle global
4043 variables defined in DLLs. Initialisations such as:
4045 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4047 wont compile. This is used by the any applications that need to
4048 declare their own ASN1 modules. This was fixed by adding the option
4049 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4050 needed for static libraries under Win32.
4053 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4054 setting of purpose and trust fields. New X509_STORE trust and
4055 purpose functions and tidy up setting in other SSL functions.
4058 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4059 structure. These are inherited by X509_STORE_CTX when it is
4060 initialised. This allows various defaults to be set in the
4061 X509_STORE structure (such as flags for CRL checking and custom
4062 purpose or trust settings) for functions which only use X509_STORE_CTX
4063 internally such as S/MIME.
4065 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4066 trust settings if they are not set in X509_STORE. This allows X509_STORE
4067 purposes and trust (in S/MIME for example) to override any set by default.
4069 Add command line options for CRL checking to smime, s_client and s_server
4073 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4074 are set then the CRL is looked up in the X509_STORE structure and
4075 its validity and signature checked, then if the certificate is found
4076 in the CRL the verify fails with a revoked error.
4078 Various new CRL related callbacks added to X509_STORE_CTX structure.
4080 Command line options added to 'verify' application to support this.
4082 This needs some additional work, such as being able to handle multiple
4083 CRLs with different times, extension based lookup (rather than just
4084 by subject name) and ultimately more complete V2 CRL extension
4088 *) Add a general user interface API (crypto/ui/). This is designed
4089 to replace things like des_read_password and friends (backward
4090 compatibility functions using this new API are provided).
4091 The purpose is to remove prompting functions from the DES code
4092 section as well as provide for prompting through dialog boxes in
4093 a window system and the like.
4096 *) Add "ex_data" support to ENGINE so implementations can add state at a
4097 per-structure level rather than having to store it globally.
4100 *) Make it possible for ENGINE structures to be copied when retrieved by
4101 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4102 This causes the "original" ENGINE structure to act like a template,
4103 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4104 operational state can be localised to each ENGINE structure, despite the
4105 fact they all share the same "methods". New ENGINE structures returned in
4106 this case have no functional references and the return value is the single
4107 structural reference. This matches the single structural reference returned
4108 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4112 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4113 needs to match any other type at all we need to manually clear the
4117 *) Changes to the "openssl engine" utility to include;
4118 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4119 about an ENGINE's available control commands.
4120 - executing control commands from command line arguments using the
4121 '-pre' and '-post' switches. '-post' is only used if '-t' is
4122 specified and the ENGINE is successfully initialised. The syntax for
4123 the individual commands are colon-separated, for example;
4124 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4127 *) New dynamic control command support for ENGINEs. ENGINEs can now
4128 declare their own commands (numbers), names (strings), descriptions,
4129 and input types for run-time discovery by calling applications. A
4130 subset of these commands are implicitly classed as "executable"
4131 depending on their input type, and only these can be invoked through
4132 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4133 can be based on user input, config files, etc). The distinction is
4134 that "executable" commands cannot return anything other than a boolean
4135 result and can only support numeric or string input, whereas some
4136 discoverable commands may only be for direct use through
4137 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4138 pointers, or other custom uses. The "executable" commands are to
4139 support parameterisations of ENGINE behaviour that can be
4140 unambiguously defined by ENGINEs and used consistently across any
4141 OpenSSL-based application. Commands have been added to all the
4142 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4143 control over shared-library paths without source code alterations.
4146 *) Changed all ENGINE implementations to dynamically allocate their
4147 ENGINEs rather than declaring them statically. Apart from this being
4148 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4149 this also allows the implementations to compile without using the
4150 internal engine_int.h header.
4153 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4154 'const' value. Any code that should be able to modify a RAND_METHOD
4155 should already have non-const pointers to it (ie. they should only
4156 modify their own ones).
4159 *) Made a variety of little tweaks to the ENGINE code.
4160 - "atalla" and "ubsec" string definitions were moved from header files
4161 to C code. "nuron" string definitions were placed in variables
4162 rather than hard-coded - allowing parameterisation of these values
4163 later on via ctrl() commands.
4164 - Removed unused "#if 0"'d code.
4165 - Fixed engine list iteration code so it uses ENGINE_free() to release
4166 structural references.
4167 - Constified the RAND_METHOD element of ENGINE structures.
4168 - Constified various get/set functions as appropriate and added
4169 missing functions (including a catch-all ENGINE_cpy that duplicates
4170 all ENGINE values onto a new ENGINE except reference counts/state).
4171 - Removed NULL parameter checks in get/set functions. Setting a method
4172 or function to NULL is a way of cancelling out a previously set
4173 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4174 and doesn't justify the extra error symbols and code.
4175 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4176 flags from engine_int.h to engine.h.
4177 - Changed prototypes for ENGINE handler functions (init(), finish(),
4178 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4181 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4182 to the algorithm using long division. The binary algorithm can be
4183 used only if the modulus is odd. On 32-bit systems, it is faster
4184 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4185 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4186 up to 450 bits. In 64-bit environments, the binary algorithm
4187 appears to be advantageous for much longer moduli; here we use it
4188 for moduli up to 2048 bits.
4191 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4192 could not support the combine flag in choice fields.
4195 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4196 extensions from a certificate request to the certificate.
4199 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4200 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4201 file: this allows the display of the certificate about to be
4202 signed to be customised, to allow certain fields to be included
4203 or excluded and extension details. The old system didn't display
4204 multicharacter strings properly, omitted fields not in the policy
4205 and couldn't display additional details such as extensions.
4208 *) Function EC_POINTs_mul for multiple scalar multiplication
4209 of an arbitrary number of elliptic curve points
4210 \sum scalars[i]*points[i],
4211 optionally including the generator defined for the EC_GROUP:
4212 scalar*generator + \sum scalars[i]*points[i].
4214 EC_POINT_mul is a simple wrapper function for the typical case
4215 that the point list has just one item (besides the optional
4219 *) First EC_METHODs for curves over GF(p):
4221 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4222 operations and provides various method functions that can also
4223 operate with faster implementations of modular arithmetic.
4225 EC_GFp_mont_method() reuses most functions that are part of
4226 EC_GFp_simple_method, but uses Montgomery arithmetic.
4228 [Bodo Moeller; point addition and point doubling
4229 implementation directly derived from source code provided by
4230 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4232 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4233 crypto/ec/ec_lib.c):
4235 Curves are EC_GROUP objects (with an optional group generator)
4236 based on EC_METHODs that are built into the library.
4238 Points are EC_POINT objects based on EC_GROUP objects.
4240 Most of the framework would be able to handle curves over arbitrary
4241 finite fields, but as there are no obvious types for fields other
4242 than GF(p), some functions are limited to that for now.
4245 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4246 that the file contains a complete HTTP response.
4249 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4250 change the def and num file printf format specifier from "%-40sXXX"
4251 to "%-39s XXX". The latter will always guarantee a space after the
4252 field while the former will cause them to run together if the field
4253 is 40 of more characters long.
4256 *) Constify the cipher and digest 'method' functions and structures
4257 and modify related functions to take constant EVP_MD and EVP_CIPHER
4261 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4262 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4265 *) Modify EVP_Digest*() routines so they now return values. Although the
4266 internal software routines can never fail additional hardware versions
4270 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4272 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4273 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4276 ERR_R_NESTED_ASN1_ERROR
4278 ERR_R_MISSING_ASN1_EOS
4279 were 4 .. 9, conflicting with
4280 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4282 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4283 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4285 Add new error code 'ERR_R_INTERNAL_ERROR'.
4288 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4292 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4293 sets the subject name for a new request or supersedes the
4294 subject name in a given request. Formats that can be parsed are
4295 'CN=Some Name, OU=myOU, C=IT'
4297 'CN=Some Name/OU=myOU/C=IT'.
4299 Add options '-batch' and '-verbose' to 'openssl req'.
4300 [Massimiliano Pala <madwolf@hackmasters.net>]
4302 *) Introduce the possibility to access global variables through
4303 functions on platform were that's the best way to handle exporting
4304 global variables in shared libraries. To enable this functionality,
4305 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4306 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4307 is normally done by Configure or something similar).
4309 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4310 in the source file (foo.c) like this:
4312 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4313 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4315 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4316 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4318 OPENSSL_DECLARE_GLOBAL(int,foo);
4319 #define foo OPENSSL_GLOBAL_REF(foo)
4320 OPENSSL_DECLARE_GLOBAL(double,bar);
4321 #define bar OPENSSL_GLOBAL_REF(bar)
4323 The #defines are very important, and therefore so is including the
4324 header file everywhere where the defined globals are used.
4326 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4327 of ASN.1 items, but that structure is a bit different.
4329 The largest change is in util/mkdef.pl which has been enhanced with
4330 better and easier to understand logic to choose which symbols should
4331 go into the Windows .def files as well as a number of fixes and code
4332 cleanup (among others, algorithm keywords are now sorted
4333 lexicographically to avoid constant rewrites).
4336 *) In BN_div() keep a copy of the sign of 'num' before writing the
4337 result to 'rm' because if rm==num the value will be overwritten
4338 and produce the wrong result if 'num' is negative: this caused
4339 problems with BN_mod() and BN_nnmod().
4342 *) Function OCSP_request_verify(). This checks the signature on an
4343 OCSP request and verifies the signer certificate. The signer
4344 certificate is just checked for a generic purpose and OCSP request
4348 *) Add OCSP_check_validity() function to check the validity of OCSP
4349 responses. OCSP responses are prepared in real time and may only
4350 be a few seconds old. Simply checking that the current time lies
4351 between thisUpdate and nextUpdate max reject otherwise valid responses
4352 caused by either OCSP responder or client clock inaccuracy. Instead
4353 we allow thisUpdate and nextUpdate to fall within a certain period of
4354 the current time. The age of the response can also optionally be
4355 checked. Two new options -validity_period and -status_age added to
4359 *) If signature or public key algorithm is unrecognized print out its
4360 OID rather that just UNKNOWN.
4363 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4364 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4365 ID to be generated from the issuer certificate alone which can then be
4366 passed to OCSP_id_issuer_cmp().
4369 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4370 ASN1 modules to export functions returning ASN1_ITEM pointers
4371 instead of the ASN1_ITEM structures themselves. This adds several
4372 new macros which allow the underlying ASN1 function/structure to
4373 be accessed transparently. As a result code should not use ASN1_ITEM
4374 references directly (such as &X509_it) but instead use the relevant
4375 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4376 use of the new ASN1 code on platforms where exporting structures
4377 is problematical (for example in shared libraries) but exporting
4378 functions returning pointers to structures is not.
4381 *) Add support for overriding the generation of SSL/TLS session IDs.
4382 These callbacks can be registered either in an SSL_CTX or per SSL.
4383 The purpose of this is to allow applications to control, if they wish,
4384 the arbitrary values chosen for use as session IDs, particularly as it
4385 can be useful for session caching in multiple-server environments. A
4386 command-line switch for testing this (and any client code that wishes
4387 to use such a feature) has been added to "s_server".
4388 [Geoff Thorpe, Lutz Jaenicke]
4390 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4391 of the form '#if defined(...) || defined(...) || ...' and
4392 '#if !defined(...) && !defined(...) && ...'. This also avoids
4393 the growing number of special cases it was previously handling.
4396 *) Make all configuration macros available for application by making
4397 sure they are available in opensslconf.h, by giving them names starting
4398 with "OPENSSL_" to avoid conflicts with other packages and by making
4399 sure e_os2.h will cover all platform-specific cases together with
4401 Additionally, it is now possible to define configuration/platform-
4402 specific names (called "system identities"). In the C code, these
4403 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4404 macro with the name beginning with "OPENSSL_SYS_", which is determined
4405 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4409 *) New option -set_serial to 'req' and 'x509' this allows the serial
4410 number to use to be specified on the command line. Previously self
4411 signed certificates were hard coded with serial number 0 and the
4412 CA options of 'x509' had to use a serial number in a file which was
4416 *) New options to 'ca' utility to support V2 CRL entry extensions.
4417 Currently CRL reason, invalidity date and hold instruction are
4418 supported. Add new CRL extensions to V3 code and some new objects.
4421 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4422 disable standard block padding (aka PKCS#5 padding) in the EVP
4423 API, which was previously mandatory. This means that the data is
4424 not padded in any way and so the total length much be a multiple
4425 of the block size, otherwise an error occurs.
4428 *) Initial (incomplete) OCSP SSL support.
4431 *) New function OCSP_parse_url(). This splits up a URL into its host,
4432 port and path components: primarily to parse OCSP URLs. New -url
4433 option to ocsp utility.
4436 *) New nonce behavior. The return value of OCSP_check_nonce() now
4437 reflects the various checks performed. Applications can decide
4438 whether to tolerate certain situations such as an absent nonce
4439 in a response when one was present in a request: the ocsp application
4440 just prints out a warning. New function OCSP_add1_basic_nonce()
4441 this is to allow responders to include a nonce in a response even if
4442 the request is nonce-less.
4445 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4446 skipped when using openssl x509 multiple times on a single input file,
4447 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4450 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4451 set string type: to handle setting ASN1_TIME structures. Fix ca
4452 utility to correctly initialize revocation date of CRLs.
4455 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4456 the clients preferred ciphersuites and rather use its own preferences.
4457 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4458 Internet Explorer by ensuring unchanged hash method during stepup.
4459 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4462 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4463 to aes and add a new 'exist' option to print out symbols that don't
4467 *) Additional options to ocsp utility to allow flags to be set and
4468 additional certificates supplied.
4471 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4472 OCSP client a number of certificate to only verify the response
4476 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4477 handle the new API. Currently only ECB, CBC modes supported. Add new
4480 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4481 Encryption Standard (AES) Ciphersuites for Transport Layer
4482 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4483 not enabled by default and were not part of the "ALL" ciphersuite
4484 alias because they were not yet official; they could be
4485 explicitly requested by specifying the "AESdraft" ciphersuite
4486 group alias. In the final release of OpenSSL 0.9.7, the group
4487 alias is called "AES" and is part of "ALL".)
4488 [Ben Laurie, Steve Henson, Bodo Moeller]
4490 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4491 request to response.
4494 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4495 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4496 extract information from a certificate request. OCSP_response_create()
4497 creates a response and optionally adds a basic response structure.
4498 OCSP_basic_add1_status() adds a complete single response to a basic
4499 response and returns the OCSP_SINGLERESP structure just added (to allow
4500 extensions to be included for example). OCSP_basic_add1_cert() adds a
4501 certificate to a basic response and OCSP_basic_sign() signs a basic
4502 response with various flags. New helper functions ASN1_TIME_check()
4503 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4504 (converts ASN1_TIME to GeneralizedTime).
4507 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4508 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4509 structure from a certificate. X509_pubkey_digest() digests the public_key
4510 contents: this is used in various key identifiers.
4513 *) Make sk_sort() tolerate a NULL argument.
4514 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4516 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4517 passed by the function are trusted implicitly. If any of them signed the
4518 response then it is assumed to be valid and is not verified.
4521 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4522 to data. This was previously part of the PKCS7 ASN1 code. This
4523 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4524 [Steve Henson, reported by Kenneth R. Robinette
4525 <support@securenetterm.com>]
4527 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4528 routines: without these tracing memory leaks is very painful.
4529 Fix leaks in PKCS12 and PKCS7 routines.
4532 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4533 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4534 effectively meant GeneralizedTime would never be used. Now it
4535 is initialised to -1 but X509_time_adj() now has to check the value
4536 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4537 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4538 [Steve Henson, reported by Kenneth R. Robinette
4539 <support@securenetterm.com>]
4541 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4542 result in a zero length in the ASN1_INTEGER structure which was
4543 not consistent with the structure when d2i_ASN1_INTEGER() was used
4544 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4545 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4546 where it did not print out a minus for negative ASN1_INTEGER.
4549 *) Add summary printout to ocsp utility. The various functions which
4550 convert status values to strings have been renamed to:
4551 OCSP_response_status_str(), OCSP_cert_status_str() and
4552 OCSP_crl_reason_str() and are no longer static. New options
4553 to verify nonce values and to disable verification. OCSP response
4554 printout format cleaned up.
4557 *) Add additional OCSP certificate checks. These are those specified
4558 in RFC2560. This consists of two separate checks: the CA of the
4559 certificate being checked must either be the OCSP signer certificate
4560 or the issuer of the OCSP signer certificate. In the latter case the
4561 OCSP signer certificate must contain the OCSP signing extended key
4562 usage. This check is performed by attempting to match the OCSP
4563 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4564 in the OCSP_CERTID structures of the response.
4567 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4568 and related routines. This uses the standard OpenSSL certificate
4569 verify routines to perform initial checks (just CA validity) and
4570 to obtain the certificate chain. Then additional checks will be
4571 performed on the chain. Currently the root CA is checked to see
4572 if it is explicitly trusted for OCSP signing. This is used to set
4573 a root CA as a global signing root: that is any certificate that
4574 chains to that CA is an acceptable OCSP signing certificate.
4577 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4578 extensions from a separate configuration file.
4579 As when reading extensions from the main configuration file,
4580 the '-extensions ...' option may be used for specifying the
4582 [Massimiliano Pala <madwolf@comune.modena.it>]
4584 *) New OCSP utility. Allows OCSP requests to be generated or
4585 read. The request can be sent to a responder and the output
4586 parsed, outputed or printed in text form. Not complete yet:
4587 still needs to check the OCSP response validity.
4590 *) New subcommands for 'openssl ca':
4591 'openssl ca -status <serial>' prints the status of the cert with
4592 the given serial number (according to the index file).
4593 'openssl ca -updatedb' updates the expiry status of certificates
4595 [Massimiliano Pala <madwolf@comune.modena.it>]
4597 *) New '-newreq-nodes' command option to CA.pl. This is like
4598 '-newreq', but calls 'openssl req' with the '-nodes' option
4599 so that the resulting key is not encrypted.
4600 [Damien Miller <djm@mindrot.org>]
4602 *) New configuration for the GNU Hurd.
4603 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4605 *) Initial code to implement OCSP basic response verify. This
4606 is currently incomplete. Currently just finds the signer's
4607 certificate and verifies the signature on the response.
4610 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4611 value of OPENSSLDIR. This is available via the new '-d' option
4612 to 'openssl version', and is also included in 'openssl version -a'.
4615 *) Allowing defining memory allocation callbacks that will be given
4616 file name and line number information in additional arguments
4617 (a const char* and an int). The basic functionality remains, as
4618 well as the original possibility to just replace malloc(),
4619 realloc() and free() by functions that do not know about these
4620 additional arguments. To register and find out the current
4621 settings for extended allocation functions, the following
4622 functions are provided:
4624 CRYPTO_set_mem_ex_functions
4625 CRYPTO_set_locked_mem_ex_functions
4626 CRYPTO_get_mem_ex_functions
4627 CRYPTO_get_locked_mem_ex_functions
4629 These work the same way as CRYPTO_set_mem_functions and friends.
4630 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4631 extended allocation function is enabled.
4632 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4633 a conventional allocation function is enabled.
4634 [Richard Levitte, Bodo Moeller]
4636 *) Finish off removing the remaining LHASH function pointer casts.
4637 There should no longer be any prototype-casting required when using
4638 the LHASH abstraction, and any casts that remain are "bugs". See
4639 the callback types and macros at the head of lhash.h for details
4640 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4643 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4644 If /dev/[u]random devices are not available or do not return enough
4645 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4647 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4648 /etc/entropy will be queried once each in this sequence, quering stops
4649 when enough entropy was collected without querying more sockets.
4652 *) Change the Unix RAND_poll() variant to be able to poll several
4653 random devices, as specified by DEVRANDOM, until a sufficient amount
4654 of data has been collected. We spend at most 10 ms on each file
4655 (select timeout) and read in non-blocking mode. DEVRANDOM now
4656 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4657 (previously it was just the string "/dev/urandom"), so on typical
4658 platforms the 10 ms delay will never occur.
4659 Also separate out the Unix variant to its own file, rand_unix.c.
4660 For VMS, there's a currently-empty rand_vms.c.
4663 *) Move OCSP client related routines to ocsp_cl.c. These
4664 provide utility functions which an application needing
4665 to issue a request to an OCSP responder and analyse the
4666 response will typically need: as opposed to those which an
4667 OCSP responder itself would need which will be added later.
4669 OCSP_request_sign() signs an OCSP request with an API similar
4670 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4671 response. OCSP_response_get1_basic() extracts basic response
4672 from response. OCSP_resp_find_status(): finds and extracts status
4673 information from an OCSP_CERTID structure (which will be created
4674 when the request structure is built). These are built from lower
4675 level functions which work on OCSP_SINGLERESP structures but
4676 wont normally be used unless the application wishes to examine
4677 extensions in the OCSP response for example.
4679 Replace nonce routines with a pair of functions.
4680 OCSP_request_add1_nonce() adds a nonce value and optionally
4681 generates a random value. OCSP_check_nonce() checks the
4682 validity of the nonce in an OCSP response.
4685 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4686 This doesn't copy the supplied OCSP_CERTID and avoids the
4687 need to free up the newly created id. Change return type
4688 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4689 This can then be used to add extensions to the request.
4690 Deleted OCSP_request_new(), since most of its functionality
4691 is now in OCSP_REQUEST_new() (and the case insensitive name
4692 clash) apart from the ability to set the request name which
4693 will be added elsewhere.
4696 *) Update OCSP API. Remove obsolete extensions argument from
4697 various functions. Extensions are now handled using the new
4698 OCSP extension code. New simple OCSP HTTP function which
4699 can be used to send requests and parse the response.
4702 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4703 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4704 uses the special reorder version of SET OF to sort the attributes
4705 and reorder them to match the encoded order. This resolves a long
4706 standing problem: a verify on a PKCS7 structure just after signing
4707 it used to fail because the attribute order did not match the
4708 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4709 it uses the received order. This is necessary to tolerate some broken
4710 software that does not order SET OF. This is handled by encoding
4711 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4712 to produce the required SET OF.
4715 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4716 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4717 files to get correct declarations of the ASN.1 item variables.
4720 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4721 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4722 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4723 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4724 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4725 ASN1_ITEM and no wrapper functions.
4728 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4729 replace the old function pointer based I/O routines. Change most of
4730 the *_d2i_bio() and *_d2i_fp() functions to use these.
4733 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4734 lines, recognice more "algorithms" that can be deselected, and make
4735 it complain about algorithm deselection that isn't recognised.
4738 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4739 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4740 to use new functions. Add NO_ASN1_OLD which can be set to remove
4741 some old style ASN1 functions: this can be used to determine if old
4742 code will still work when these eventually go away.
4745 *) New extension functions for OCSP structures, these follow the
4746 same conventions as certificates and CRLs.
4749 *) New function X509V3_add1_i2d(). This automatically encodes and
4750 adds an extension. Its behaviour can be customised with various
4751 flags to append, replace or delete. Various wrappers added for
4752 certifcates and CRLs.
4755 *) Fix to avoid calling the underlying ASN1 print routine when
4756 an extension cannot be parsed. Correct a typo in the
4757 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4760 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4761 entries for variables.
4764 *) Add functionality to apps/openssl.c for detecting locking
4765 problems: As the program is single-threaded, all we have
4766 to do is register a locking callback using an array for
4767 storing which locks are currently held by the program.
4770 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4771 SSL_get_ex_data_X509_STORE_idx(), which is used in
4772 ssl_verify_cert_chain() and thus can be called at any time
4773 during TLS/SSL handshakes so that thread-safety is essential.
4774 Unfortunately, the ex_data design is not at all suited
4775 for multi-threaded use, so it probably should be abolished.
4778 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4779 [Broadcom, tweaked and integrated by Geoff Thorpe]
4781 *) Move common extension printing code to new function
4782 X509V3_print_extensions(). Reorganise OCSP print routines and
4783 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4786 *) New function X509_signature_print() to remove duplication in some
4790 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4791 set (this was treated exactly the same as SET OF previously). This
4792 is used to reorder the STACK representing the structure to match the
4793 encoding. This will be used to get round a problem where a PKCS7
4794 structure which was signed could not be verified because the STACK
4795 order did not reflect the encoded order.
4798 *) Reimplement the OCSP ASN1 module using the new code.
4801 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4802 for its ASN1 operations. The old style function pointers still exist
4803 for now but they will eventually go away.
4806 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4807 completely replaces the old ASN1 functionality with a table driven
4808 encoder and decoder which interprets an ASN1_ITEM structure describing
4809 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4810 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4811 has also been converted to the new form.
4814 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4815 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4816 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4817 for negative moduli.
4820 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4821 of not touching the result's sign bit.
4824 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4828 *) Changed the LHASH code to use prototypes for callbacks, and created
4829 macros to declare and implement thin (optionally static) functions
4830 that provide type-safety and avoid function pointer casting for the
4831 type-specific callbacks.
4834 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4836 [Veers Staats <staatsvr@asc.hpc.mil>,
4837 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4839 *) Reformat the FAQ so the different questions and answers can be divided
4840 in sections depending on the subject.
4843 *) Have the zlib compression code load ZLIB.DLL dynamically under
4847 *) New function BN_mod_sqrt for computing square roots modulo a prime
4848 (using the probabilistic Tonelli-Shanks algorithm unless
4849 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4850 be handled deterministically).
4851 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4853 *) Make BN_mod_inverse faster by explicitly handling small quotients
4854 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4855 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4858 *) New function BN_kronecker.
4861 *) Fix BN_gcd so that it works on negative inputs; the result is
4862 positive unless both parameters are zero.
4863 Previously something reasonably close to an infinite loop was
4864 possible because numbers could be growing instead of shrinking
4865 in the implementation of Euclid's algorithm.
4868 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4869 sign of the number in question.
4871 Fix BN_is_word(a,w) to work correctly for w == 0.
4873 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4874 because its test if the absolute value of 'a' equals 'w'.
4875 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4876 it exists mostly for use in the implementations of BN_is_zero(),
4877 BN_is_one(), and BN_is_word().
4880 *) New function BN_swap.
4883 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4884 the exponentiation functions are more likely to produce reasonable
4885 results on negative inputs.
4888 *) Change BN_mod_mul so that the result is always non-negative.
4889 Previously, it could be negative if one of the factors was negative;
4890 I don't think anyone really wanted that behaviour.
4893 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4894 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4895 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4896 and add new functions:
4905 BN_mod_lshift1_quick
4909 These functions always generate non-negative results.
4911 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4912 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4914 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4915 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4916 be reduced modulo m.
4917 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4920 The following entry accidentily appeared in the CHANGES file
4921 distributed with OpenSSL 0.9.7. The modifications described in
4922 it do *not* apply to OpenSSL 0.9.7.
4924 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4925 was actually never needed) and in BN_mul(). The removal in BN_mul()
4926 required a small change in bn_mul_part_recursive() and the addition
4927 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4928 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4929 bn_sub_words() and bn_add_words() except they take arrays with
4934 *) In 'openssl passwd', verify passwords read from the terminal
4935 unless the '-salt' option is used (which usually means that
4936 verification would just waste user's time since the resulting
4937 hash is going to be compared with some given password hash)
4938 or the new '-noverify' option is used.
4940 This is an incompatible change, but it does not affect
4941 non-interactive use of 'openssl passwd' (passwords on the command
4942 line, '-stdin' option, '-in ...' option) and thus should not
4946 *) Remove all references to RSAref, since there's no more need for it.
4949 *) Make DSO load along a path given through an environment variable
4950 (SHLIB_PATH) with shl_load().
4953 *) Constify the ENGINE code as a result of BIGNUM constification.
4954 Also constify the RSA code and most things related to it. In a
4955 few places, most notable in the depth of the ASN.1 code, ugly
4956 casts back to non-const were required (to be solved at a later
4960 *) Make it so the openssl application has all engines loaded by default.
4963 *) Constify the BIGNUM routines a little more.
4966 *) Add the following functions:
4968 ENGINE_load_cswift()
4970 ENGINE_load_atalla()
4972 ENGINE_load_builtin_engines()
4974 That way, an application can itself choose if external engines that
4975 are built-in in OpenSSL shall ever be used or not. The benefit is
4976 that applications won't have to be linked with libdl or other dso
4977 libraries unless it's really needed.
4979 Changed 'openssl engine' to load all engines on demand.
4980 Changed the engine header files to avoid the duplication of some
4981 declarations (they differed!).
4984 *) 'openssl engine' can now list capabilities.
4987 *) Better error reporting in 'openssl engine'.
4990 *) Never call load_dh_param(NULL) in s_server.
4993 *) Add engine application. It can currently list engines by name and
4994 identity, and test if they are actually available.
4997 *) Improve RPM specification file by forcing symbolic linking and making
4998 sure the installed documentation is also owned by root.root.
4999 [Damien Miller <djm@mindrot.org>]
5001 *) Give the OpenSSL applications more possibilities to make use of
5002 keys (public as well as private) handled by engines.
5005 *) Add OCSP code that comes from CertCo.
5008 *) Add VMS support for the Rijndael code.
5011 *) Added untested support for Nuron crypto accelerator.
5014 *) Add support for external cryptographic devices. This code was
5015 previously distributed separately as the "engine" branch.
5016 [Geoff Thorpe, Richard Levitte]
5018 *) Rework the filename-translation in the DSO code. It is now possible to
5019 have far greater control over how a "name" is turned into a filename
5020 depending on the operating environment and any oddities about the
5021 different shared library filenames on each system.
5024 *) Support threads on FreeBSD-elf in Configure.
5027 *) Fix for SHA1 assembly problem with MASM: it produces
5028 warnings about corrupt line number information when assembling
5029 with debugging information. This is caused by the overlapping
5031 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5034 NCONF_get_number() has no error checking at all. As a replacement,
5035 NCONF_get_number_e() is defined (_e for "error checking") and is
5036 promoted strongly. The old NCONF_get_number is kept around for
5037 binary backward compatibility.
5038 Make it possible for methods to load from something other than a BIO,
5039 by providing a function pointer that is given a name instead of a BIO.
5040 For example, this could be used to load configuration data from an
5044 *) Fix for non blocking accept BIOs. Added new I/O special reason
5045 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5046 with non blocking I/O was not possible because no retry code was
5047 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5051 *) Added the beginnings of Rijndael support.
5054 *) Fix for bug in DirectoryString mask setting. Add support for
5055 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5056 to allow certificate printing to more controllable, additional
5057 'certopt' option to 'x509' to allow new printing options to be
5061 *) Clean old EAY MD5 hack from e_os.h.
5064 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5066 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5067 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5068 [Joe Orton, Steve Henson]
5070 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5072 *) Fix additional bug revealed by the NISCC test suite:
5074 Stop bug triggering large recursion when presented with
5075 certain ASN.1 tags (CVE-2003-0851)
5078 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5080 *) Fix various bugs revealed by running the NISCC test suite:
5082 Stop out of bounds reads in the ASN1 code when presented with
5083 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5085 If verify callback ignores invalid public key errors don't try to check
5086 certificate signature with the NULL public key.
5090 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5091 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5095 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5096 extra data after the compression methods not only for TLS 1.0
5097 but also for SSL 3.0 (as required by the specification).
5098 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5100 *) Change X509_certificate_type() to mark the key as exported/exportable
5101 when it's 512 *bits* long, not 512 bytes.
5104 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5106 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5107 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5108 a protocol version number mismatch like a decryption error
5109 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5112 *) Turn on RSA blinding by default in the default implementation
5113 to avoid a timing attack. Applications that don't want it can call
5114 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5115 They would be ill-advised to do so in most cases.
5116 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5118 *) Change RSA blinding code so that it works when the PRNG is not
5119 seeded (in this case, the secret RSA exponent is abused as
5120 an unpredictable seed -- if it is not unpredictable, there
5121 is no point in blinding anyway). Make RSA blinding thread-safe
5122 by remembering the creator's thread ID in rsa->blinding and
5123 having all other threads use local one-time blinding factors
5124 (this requires more computation than sharing rsa->blinding, but
5125 avoids excessive locking; and if an RSA object is not shared
5126 between threads, blinding will still be very fast).
5129 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5131 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5132 via timing by performing a MAC computation even if incorrrect
5133 block cipher padding has been found. This is a countermeasure
5134 against active attacks where the attacker has to distinguish
5135 between bad padding and a MAC verification error. (CVE-2003-0078)
5137 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5138 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5139 Martin Vuagnoux (EPFL, Ilion)]
5141 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5143 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5144 memory from it's contents. This is done with a counter that will
5145 place alternating values in each byte. This can be used to solve
5146 two issues: 1) the removal of calls to memset() by highly optimizing
5147 compilers, and 2) cleansing with other values than 0, since those can
5148 be read through on certain media, for example a swap space on disk.
5151 *) Bugfix: client side session caching did not work with external caching,
5152 because the session->cipher setting was not restored when reloading
5153 from the external cache. This problem was masked, when
5154 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5155 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5158 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5159 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5160 [Zeev Lieber <zeev-l@yahoo.com>]
5162 *) Undo an undocumented change introduced in 0.9.6e which caused
5163 repeated calls to OpenSSL_add_all_ciphers() and
5164 OpenSSL_add_all_digests() to be ignored, even after calling
5168 *) Change the default configuration reader to deal with last line not
5169 being properly terminated.
5172 *) Change X509_NAME_cmp() so it applies the special rules on handling
5173 DN values that are of type PrintableString, as well as RDNs of type
5174 emailAddress where the value has the type ia5String.
5175 [stefank@valicert.com via Richard Levitte]
5177 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5178 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5179 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5180 the bitwise-OR of the two for use by the majority of applications
5181 wanting this behaviour, and update the docs. The documented
5182 behaviour and actual behaviour were inconsistent and had been
5183 changing anyway, so this is more a bug-fix than a behavioural
5185 [Geoff Thorpe, diagnosed by Nadav Har'El]
5187 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5188 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5191 *) Fix initialization code race conditions in
5192 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5193 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5194 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5195 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5196 ssl2_get_cipher_by_char(),
5197 ssl3_get_cipher_by_char().
5198 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5200 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5201 the cached sessions are flushed, as the remove_cb() might use ex_data
5202 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5203 (see [openssl.org #212]).
5204 [Geoff Thorpe, Lutz Jaenicke]
5206 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5207 length, instead of the encoding length to d2i_ASN1_OBJECT.
5210 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5212 *) [In 0.9.6g-engine release:]
5213 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5214 [Lynn Gazis <lgazis@rainbow.com>]
5216 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5218 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5219 and get fix the header length calculation.
5220 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5221 Alon Kantor <alonk@checkpoint.com> (and others),
5224 *) Use proper error handling instead of 'assertions' in buffer
5225 overflow checks added in 0.9.6e. This prevents DoS (the
5226 assertions could call abort()).
5227 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5229 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5231 *) Add various sanity checks to asn1_get_length() to reject
5232 the ASN1 length bytes if they exceed sizeof(long), will appear
5233 negative or the content length exceeds the length of the
5235 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5237 *) Fix cipher selection routines: ciphers without encryption had no flags
5238 for the cipher strength set and where therefore not handled correctly
5239 by the selection routines (PR #130).
5242 *) Fix EVP_dsa_sha macro.
5246 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5247 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5248 that was added in OpenSSL 0.9.6d.
5250 As the countermeasure turned out to be incompatible with some
5251 broken SSL implementations, the new option is part of SSL_OP_ALL.
5252 SSL_OP_ALL is usually employed when compatibility with weird SSL
5253 implementations is desired (e.g. '-bugs' option to 's_client' and
5254 's_server'), so the new option is automatically set in many
5258 *) Changes in security patch:
5260 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5261 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5262 Air Force Materiel Command, USAF, under agreement number
5265 *) Add various sanity checks to asn1_get_length() to reject
5266 the ASN1 length bytes if they exceed sizeof(long), will appear
5267 negative or the content length exceeds the length of the
5268 supplied buffer. (CVE-2002-0659)
5269 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5271 *) Assertions for various potential buffer overflows, not known to
5273 [Ben Laurie (CHATS)]
5275 *) Various temporary buffers to hold ASCII versions of integers were
5276 too small for 64 bit platforms. (CVE-2002-0655)
5277 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5279 *) Remote buffer overflow in SSL3 protocol - an attacker could
5280 supply an oversized session ID to a client. (CVE-2002-0656)
5281 [Ben Laurie (CHATS)]
5283 *) Remote buffer overflow in SSL2 protocol - an attacker could
5284 supply an oversized client master key. (CVE-2002-0656)
5285 [Ben Laurie (CHATS)]
5287 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5289 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5290 encoded as NULL) with id-dsa-with-sha1.
5291 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5293 *) Check various X509_...() return values in apps/req.c.
5294 [Nils Larsch <nla@trustcenter.de>]
5296 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5297 an end-of-file condition would erronously be flagged, when the CRLF
5298 was just at the end of a processed block. The bug was discovered when
5299 processing data through a buffering memory BIO handing the data to a
5300 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5301 <ptsekov@syntrex.com> and Nedelcho Stanev.
5304 *) Implement a countermeasure against a vulnerability recently found
5305 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5306 before application data chunks to avoid the use of known IVs
5307 with data potentially chosen by the attacker.
5310 *) Fix length checks in ssl3_get_client_hello().
5313 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5314 to prevent ssl3_read_internal() from incorrectly assuming that
5315 ssl3_read_bytes() found application data while handshake
5316 processing was enabled when in fact s->s3->in_read_app_data was
5317 merely automatically cleared during the initial handshake.
5318 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5320 *) Fix object definitions for Private and Enterprise: they were not
5321 recognized in their shortname (=lowercase) representation. Extend
5322 obj_dat.pl to issue an error when using undefined keywords instead
5323 of silently ignoring the problem (Svenning Sorensen
5324 <sss@sss.dnsalias.net>).
5327 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5328 generators, i.e. generators other than 2 and 5. (Previously, the
5329 code did not properly initialise the 'add' and 'rem' values to
5330 BN_generate_prime().)
5332 In the new general case, we do not insist that 'generator' is
5333 actually a primitive root: This requirement is rather pointless;
5334 a generator of the order-q subgroup is just as good, if not
5338 *) Map new X509 verification errors to alerts. Discovered and submitted by
5339 Tom Wu <tom@arcot.com>.
5342 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5343 returning non-zero before the data has been completely received
5344 when using non-blocking I/O.
5345 [Bodo Moeller; problem pointed out by John Hughes]
5347 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5348 [Ben Laurie, Lutz Jaenicke]
5350 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5351 Yoram Zahavi <YoramZ@gilian.com>).
5354 *) Add information about CygWin 1.3 and on, and preserve proper
5355 configuration for the versions before that.
5356 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5358 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5359 check whether we deal with a copy of a session and do not delete from
5360 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5361 <izhar@checkpoint.com>.
5364 *) Do not store session data into the internal session cache, if it
5365 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5366 flag is set). Proposed by Aslam <aslam@funk.com>.
5369 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5373 *) [In 0.9.6d-engine release:]
5374 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5375 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5377 *) Add the configuration target linux-s390x.
5378 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5380 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5381 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5382 variable as an indication that a ClientHello message has been
5383 received. As the flag value will be lost between multiple
5384 invocations of ssl3_accept when using non-blocking I/O, the
5385 function may not be aware that a handshake has actually taken
5386 place, thus preventing a new session from being added to the
5389 To avoid this problem, we now set s->new_session to 2 instead of
5390 using a local variable.
5391 [Lutz Jaenicke, Bodo Moeller]
5393 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5394 if the SSL_R_LENGTH_MISMATCH error is detected.
5395 [Geoff Thorpe, Bodo Moeller]
5397 *) New 'shared_ldflag' column in Configure platform table.
5400 *) Fix EVP_CIPHER_mode macro.
5401 ["Dan S. Camper" <dan@bti.net>]
5403 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5404 type, we must throw them away by setting rr->length to 0.
5405 [D P Chang <dpc@qualys.com>]
5407 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5409 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5410 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5411 worked incorrectly for those cases where range = 10..._2 and
5412 3*range is two bits longer than range.)
5415 *) Only add signing time to PKCS7 structures if it is not already
5419 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5420 OBJ_ld_ce should be OBJ_id_ce.
5421 Also some ip-pda OIDs in crypto/objects/objects.txt were
5422 incorrect (cf. RFC 3039).
5423 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5425 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5426 returns early because it has nothing to do.
5427 [Andy Schneider <andy.schneider@bjss.co.uk>]
5429 *) [In 0.9.6c-engine release:]
5430 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5431 [Andy Schneider <andy.schneider@bjss.co.uk>]
5433 *) [In 0.9.6c-engine release:]
5434 Add support for Cryptographic Appliance's keyserver technology.
5435 (Use engine 'keyclient')
5436 [Cryptographic Appliances and Geoff Thorpe]
5438 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5439 is called via tools/c89.sh because arguments have to be
5440 rearranged (all '-L' options must appear before the first object
5442 [Richard Shapiro <rshapiro@abinitio.com>]
5444 *) [In 0.9.6c-engine release:]
5445 Add support for Broadcom crypto accelerator cards, backported
5447 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5449 *) [In 0.9.6c-engine release:]
5450 Add support for SureWare crypto accelerator cards from
5451 Baltimore Technologies. (Use engine 'sureware')
5452 [Baltimore Technologies and Mark Cox]
5454 *) [In 0.9.6c-engine release:]
5455 Add support for crypto accelerator cards from Accelerated
5456 Encryption Processing, www.aep.ie. (Use engine 'aep')
5457 [AEP Inc. and Mark Cox]
5459 *) Add a configuration entry for gcc on UnixWare.
5460 [Gary Benson <gbenson@redhat.com>]
5462 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5463 messages are stored in a single piece (fixed-length part and
5464 variable-length part combined) and fix various bugs found on the way.
5467 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5468 instead. BIO_gethostbyname() does not know what timeouts are
5469 appropriate, so entries would stay in cache even when they have
5471 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5473 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5474 faced with a pathologically small ClientHello fragment that does
5475 not contain client_version: Instead of aborting with an error,
5476 simply choose the highest available protocol version (i.e.,
5477 TLS 1.0 unless it is disabled). In practice, ClientHello
5478 messages are never sent like this, but this change gives us
5479 strictly correct behaviour at least for TLS.
5482 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5483 never resets s->method to s->ctx->method when called from within
5484 one of the SSL handshake functions.
5485 [Bodo Moeller; problem pointed out by Niko Baric]
5487 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5488 (sent using the client's version number) if client_version is
5489 smaller than the protocol version in use. Also change
5490 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5491 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5492 the client will at least see that alert.
5495 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5499 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5500 client receives HelloRequest while in a handshake.
5501 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5503 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5504 should end in 'break', not 'goto end' which circuments various
5505 cleanups done in state SSL_ST_OK. But session related stuff
5506 must be disabled for SSL_ST_OK in the case that we just sent a
5509 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5510 before just sending a HelloRequest.
5511 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5513 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5514 reveal whether illegal block cipher padding was found or a MAC
5515 verification error occured. (Neither SSLerr() codes nor alerts
5516 are directly visible to potential attackers, but the information
5517 may leak via logfiles.)
5519 Similar changes are not required for the SSL 2.0 implementation
5520 because the number of padding bytes is sent in clear for SSL 2.0,
5521 and the extra bytes are just ignored. However ssl/s2_pkt.c
5522 failed to verify that the purported number of padding bytes is in
5526 *) Add OpenUNIX-8 support including shared libraries
5527 (Boyd Lynn Gerber <gerberb@zenez.com>).
5530 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5531 'wristwatch attack' using huge encoding parameters (cf.
5532 James H. Manger's CRYPTO 2001 paper). Note that the
5533 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5534 encoding parameters and hence was not vulnerable.
5537 *) BN_sqr() bug fix.
5538 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5540 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5541 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5542 followed by modular reduction.
5543 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5545 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5546 equivalent based on BN_pseudo_rand() instead of BN_rand().
5549 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5550 This function was broken, as the check for a new client hello message
5551 to handle SGC did not allow these large messages.
5552 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5555 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5558 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5559 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5562 *) Rework the configuration and shared library support for Tru64 Unix.
5563 The configuration part makes use of modern compiler features and
5564 still retains old compiler behavior for those that run older versions
5565 of the OS. The shared library support part includes a variant that
5566 uses the RPATH feature, and is available through the special
5567 configuration target "alpha-cc-rpath", which will never be selected
5569 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5571 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5572 with the same message size as in ssl3_get_certificate_request().
5573 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5574 messages might inadvertently be reject as too long.
5575 [Petr Lampa <lampa@fee.vutbr.cz>]
5577 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5580 *) Modified SSL library such that the verify_callback that has been set
5581 specificly for an SSL object with SSL_set_verify() is actually being
5582 used. Before the change, a verify_callback set with this function was
5583 ignored and the verify_callback() set in the SSL_CTX at the time of
5584 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5585 to allow the necessary settings.
5588 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5589 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5590 done automatically (in contradiction to the requirements of the C
5591 standard). This made problems when used from OpenSSH.
5594 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5595 dh->length and always used
5597 BN_rand_range(priv_key, dh->p).
5599 BN_rand_range() is not necessary for Diffie-Hellman, and this
5600 specific range makes Diffie-Hellman unnecessarily inefficient if
5601 dh->length (recommended exponent length) is much smaller than the
5602 length of dh->p. We could use BN_rand_range() if the order of
5603 the subgroup was stored in the DH structure, but we only have
5608 BN_rand(priv_key, l, ...)
5610 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5616 RSA_eay_public_encrypt
5617 RSA_eay_private_decrypt
5618 RSA_eay_private_encrypt (signing)
5619 RSA_eay_public_decrypt (signature verification)
5621 (default implementations for RSA_public_encrypt,
5622 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5623 always reject numbers >= n.
5626 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5627 to synchronize access to 'locking_thread'. This is necessary on
5628 systems where access to 'locking_thread' (an 'unsigned long'
5629 variable) is not atomic.
5632 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5633 *before* setting the 'crypto_lock_rand' flag. The previous code had
5634 a race condition if 0 is a valid thread ID.
5635 [Travis Vitek <vitek@roguewave.com>]
5637 *) Add support for shared libraries under Irix.
5638 [Albert Chin-A-Young <china@thewrittenword.com>]
5640 *) Add configuration option to build on Linux on both big-endian and
5642 [Ralf Baechle <ralf@uni-koblenz.de>]
5644 *) Add the possibility to create shared libraries on HP-UX.
5647 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5649 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5650 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5651 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5652 PRNG state recovery was possible based on the output of
5653 one PRNG request appropriately sized to gain knowledge on
5654 'md' followed by enough consecutive 1-byte PRNG requests
5655 to traverse all of 'state'.
5657 1. When updating 'md_local' (the current thread's copy of 'md')
5658 during PRNG output generation, hash all of the previous
5659 'md_local' value, not just the half used for PRNG output.
5661 2. Make the number of bytes from 'state' included into the hash
5662 independent from the number of PRNG bytes requested.
5664 The first measure alone would be sufficient to avoid
5665 Markku-Juhani's attack. (Actually it had never occurred
5666 to me that the half of 'md_local' used for chaining was the
5667 half from which PRNG output bytes were taken -- I had always
5668 assumed that the secret half would be used.) The second
5669 measure makes sure that additional data from 'state' is never
5670 mixed into 'md_local' in small portions; this heuristically
5671 further strengthens the PRNG.
5674 *) Fix crypto/bn/asm/mips3.s.
5677 *) When only the key is given to "enc", the IV is undefined. Print out
5678 an error message in this case.
5681 *) Handle special case when X509_NAME is empty in X509 printing routines.
5684 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5685 positive and less than q.
5688 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5689 used: it isn't thread safe and the add_lock_callback should handle
5691 [Paul Rose <Paul.Rose@bridge.com>]
5693 *) Verify that incoming data obeys the block size in
5694 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5698 [Ulf Möller, Bodo Möller]
5700 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5701 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5702 when fixing the server behaviour for backwards-compatible 'client
5703 hello' messages. (Note that the attack is impractical against
5704 SSL 3.0 and TLS 1.0 anyway because length and version checking
5705 means that the probability of guessing a valid ciphertext is
5706 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5709 Before 0.9.5, the countermeasure (hide the error by generating a
5710 random 'decryption result') did not work properly because
5711 ERR_clear_error() was missing, meaning that SSL_get_error() would
5712 detect the supposedly ignored error.
5714 Both problems are now fixed.
5717 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5718 (previously it was 1024).
5721 *) Fix for compatibility mode trust settings: ignore trust settings
5722 unless some valid trust or reject settings are present.
5725 *) Fix for blowfish EVP: its a variable length cipher.
5728 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5729 parameters in DSA public key structures and return an error in the
5730 DSA routines if parameters are absent.
5733 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5734 in the current directory if neither $RANDFILE nor $HOME was set.
5735 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5736 caused some confusion to Windows users who haven't defined $HOME.
5737 Thus RAND_file_name() is changed again: e_os.h can define a
5738 DEFAULT_HOME, which will be used if $HOME is not set.
5739 For Windows, we use "C:"; on other platforms, we still require
5740 environment variables.
5742 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5743 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5744 having multiple threads call RAND_poll() concurrently.
5747 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5748 combination of a flag and a thread ID variable.
5749 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5750 flag), *other* threads can enter ssleay_add_bytes without obeying
5751 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5752 that they do not hold after the first thread unsets add_do_not_lock).
5755 *) Change bctest again: '-x' expressions are not available in all
5759 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5761 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5762 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5764 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5765 the default extension for executables, if any. Also, make the perl
5766 scripts that use symlink() to test if it really exists and use "cp"
5767 if it doesn't. All this made OpenSSL compilable and installable in
5771 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5772 If SEQUENCE is length is indefinite just set c->slen to the total
5773 amount of data available.
5774 [Steve Henson, reported by shige@FreeBSD.org]
5775 [This change does not apply to 0.9.7.]
5777 *) Change bctest to avoid here-documents inside command substitution
5778 (workaround for FreeBSD /bin/sh bug).
5779 For compatibility with Ultrix, avoid shell functions (introduced
5780 in the bctest version that searches along $PATH).
5783 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5784 with des_encrypt() defined on some operating systems, like Solaris
5788 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5789 On the Importance of Eliminating Errors in Cryptographic
5790 Computations, J. Cryptology 14 (2001) 2, 101-119,
5791 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5794 *) MIPS assembler BIGNUM division bug fix.
5797 *) Disabled incorrect Alpha assembler code.
5800 *) Fix PKCS#7 decode routines so they correctly update the length
5801 after reading an EOC for the EXPLICIT tag.
5803 [This change does not apply to 0.9.7.]
5805 *) Fix bug in PKCS#12 key generation routines. This was triggered
5806 if a 3DES key was generated with a 0 initial byte. Include
5807 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5808 (but broken) behaviour.
5811 *) Enhance bctest to search for a working bc along $PATH and print
5813 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5815 *) Fix memory leaks in err.c: free err_data string if necessary;
5816 don't write to the wrong index in ERR_set_error_data.
5819 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5823 *) Replace rdtsc with _emit statements for VC++ version 5.
5824 [Jeremy Cooper <jeremy@baymoo.org>]
5826 *) Make it possible to reuse SSLv2 sessions.
5829 *) In copy_email() check for >= 0 as a return value for
5830 X509_NAME_get_index_by_NID() since 0 is a valid index.
5831 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5833 *) Avoid coredump with unsupported or invalid public keys by checking if
5834 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5835 PKCS7_verify() fails with non detached data.
5838 *) Don't use getenv in library functions when run as setuid/setgid.
5839 New function OPENSSL_issetugid().
5842 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5843 due to incorrect handling of multi-threading:
5845 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5847 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5849 3. Count how many times MemCheck_off() has been called so that
5850 nested use can be treated correctly. This also avoids
5851 inband-signalling in the previous code (which relied on the
5852 assumption that thread ID 0 is impossible).
5855 *) Add "-rand" option also to s_client and s_server.
5858 *) Fix CPU detection on Irix 6.x.
5859 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5860 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5862 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5865 [This change does not apply to 0.9.7.]
5867 *) Use the cached encoding of an X509_NAME structure rather than
5868 copying it. This is apparently the reason for the libsafe "errors"
5869 but the code is actually correct.
5872 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5873 Bleichenbacher's DSA attack.
5874 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5875 to be set and top=0 forces the highest bit to be set; top=-1 is new
5876 and leaves the highest bit random.
5877 [Ulf Moeller, Bodo Moeller]
5879 *) In the NCONF_...-based implementations for CONF_... queries
5880 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5881 a temporary CONF structure with the data component set to NULL
5882 (which gives segmentation faults in lh_retrieve).
5883 Instead, use NULL for the CONF pointer in CONF_get_string and
5884 CONF_get_number (which may use environment variables) and directly
5885 return NULL from CONF_get_section.
5888 *) Fix potential buffer overrun for EBCDIC.
5891 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5892 keyUsage if basicConstraints absent for a CA.
5895 *) Make SMIME_write_PKCS7() write mail header values with a format that
5896 is more generally accepted (no spaces before the semicolon), since
5897 some programs can't parse those values properly otherwise. Also make
5898 sure BIO's that break lines after each write do not create invalid
5902 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5903 macros previously used would not encode an empty SEQUENCE OF
5904 and break the signature.
5906 [This change does not apply to 0.9.7.]
5908 *) Zero the premaster secret after deriving the master secret in
5912 *) Add some EVP_add_digest_alias registrations (as found in
5913 OpenSSL_add_all_digests()) to SSL_library_init()
5914 aka OpenSSL_add_ssl_algorithms(). This provides improved
5915 compatibility with peers using X.509 certificates
5916 with unconventional AlgorithmIdentifier OIDs.
5919 *) Fix for Irix with NO_ASM.
5920 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5922 *) ./config script fixes.
5923 [Ulf Moeller, Richard Levitte]
5925 *) Fix 'openssl passwd -1'.
5928 *) Change PKCS12_key_gen_asc() so it can cope with non null
5929 terminated strings whose length is passed in the passlen
5930 parameter, for example from PEM callbacks. This was done
5931 by adding an extra length parameter to asc2uni().
5932 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5934 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5935 call failed, free the DSA structure.
5938 *) Fix to uni2asc() to cope with zero length Unicode strings.
5939 These are present in some PKCS#12 files.
5942 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5943 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5944 when writing a 32767 byte record.
5945 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5947 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5948 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5950 (RSA objects have a reference count access to which is protected
5951 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5952 so they are meant to be shared between threads.)
5953 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5954 "Reddie, Steven" <Steven.Reddie@ca.com>]
5956 *) Fix a deadlock in CRYPTO_mem_leaks().
5959 *) Use better test patterns in bntest.
5962 *) rand_win.c fix for Borland C.
5965 *) BN_rshift bugfix for n == 0.
5968 *) Add a 'bctest' script that checks for some known 'bc' bugs
5969 so that 'make test' does not abort just because 'bc' is broken.
5972 *) Store verify_result within SSL_SESSION also for client side to
5973 avoid potential security hole. (Re-used sessions on the client side
5974 always resulted in verify_result==X509_V_OK, not using the original
5975 result of the server certificate verification.)
5978 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5979 SSL3_RT_APPLICATION_DATA, return 0.
5980 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5984 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5985 releases, have been re-implemented by renaming the previous
5986 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5987 and ssl3_read_internal, respectively, and adding 'peek' parameters
5988 to them. The new ssl[23]_{read,peek} functions are calls to
5989 ssl[23]_read_internal with the 'peek' flag set appropriately.
5990 A 'peek' parameter has also been added to ssl3_read_bytes, which
5991 does the actual work for ssl3_read_internal.
5994 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5995 the method-specific "init()" handler. Also clean up ex_data after
5996 calling the method-specific "finish()" handler. Previously, this was
5997 happening the other way round.
6000 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6001 The previous value, 12, was not always sufficient for BN_mod_exp().
6004 *) Make sure that shared libraries get the internal name engine with
6005 the full version number and not just 0. This should mark the
6006 shared libraries as not backward compatible. Of course, this should
6007 be changed again when we can guarantee backward binary compatibility.
6010 *) Fix typo in get_cert_by_subject() in by_dir.c
6011 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6013 *) Rework the system to generate shared libraries:
6015 - Make note of the expected extension for the shared libraries and
6016 if there is a need for symbolic links from for example libcrypto.so.0
6017 to libcrypto.so.0.9.7. There is extended info in Configure for
6020 - Make as few rebuilds of the shared libraries as possible.
6022 - Still avoid linking the OpenSSL programs with the shared libraries.
6024 - When installing, install the shared libraries separately from the
6028 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6030 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6031 and not in SSL_clear because the latter is also used by the
6032 accept/connect functions; previously, the settings made by
6033 SSL_set_read_ahead would be lost during the handshake.
6034 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6036 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6037 Previously, it would create entries for disableed algorithms no
6041 *) Added several new manual pages for SSL_* function.
6044 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6046 *) In ssl23_get_client_hello, generate an error message when faced
6047 with an initial SSL 3.0/TLS record that is too small to contain the
6048 first two bytes of the ClientHello message, i.e. client_version.
6049 (Note that this is a pathologic case that probably has never happened
6050 in real life.) The previous approach was to use the version number
6051 from the record header as a substitute; but our protocol choice
6052 should not depend on that one because it is not authenticated
6053 by the Finished messages.
6056 *) More robust randomness gathering functions for Windows.
6057 [Jeffrey Altman <jaltman@columbia.edu>]
6059 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6060 not set then we don't setup the error code for issuer check errors
6061 to avoid possibly overwriting other errors which the callback does
6062 handle. If an application does set the flag then we assume it knows
6063 what it is doing and can handle the new informational codes
6067 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6068 a general "ANY" type, as such it should be able to decode anything
6069 including tagged types. However it didn't check the class so it would
6070 wrongly interpret tagged types in the same way as their universal
6071 counterpart and unknown types were just rejected. Changed so that the
6072 tagged and unknown types are handled in the same way as a SEQUENCE:
6073 that is the encoding is stored intact. There is also a new type
6074 "V_ASN1_OTHER" which is used when the class is not universal, in this
6075 case we have no idea what the actual type is so we just lump them all
6079 *) On VMS, stdout may very well lead to a file that is written to
6080 in a record-oriented fashion. That means that every write() will
6081 write a separate record, which will be read separately by the
6082 programs trying to read from it. This can be very confusing.
6084 The solution is to put a BIO filter in the way that will buffer
6085 text until a linefeed is reached, and then write everything a
6086 line at a time, so every record written will be an actual line,
6087 not chunks of lines and not (usually doesn't happen, but I've
6088 seen it once) several lines in one record. BIO_f_linebuffer() is
6091 Currently, it's a VMS-only method, because that's where it has
6092 been tested well enough.
6095 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6096 it can return incorrect results.
6097 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6098 but it was in 0.9.6-beta[12].)
6101 *) Disable the check for content being present when verifying detached
6102 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6103 include zero length content when signing messages.
6106 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6107 BIO_ctrl (for BIO pairs).
6110 *) Add DSO method for VMS.
6113 *) Bug fix: Montgomery multiplication could produce results with the
6117 *) Add RPM specification openssl.spec and modify it to build three
6118 packages. The default package contains applications, application
6119 documentation and run-time libraries. The devel package contains
6120 include files, static libraries and function documentation. The
6121 doc package contains the contents of the doc directory. The original
6122 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6125 *) Add a large number of documentation files for many SSL routines.
6126 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6128 *) Add a configuration entry for Sony News 4.
6129 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6131 *) Don't set the two most significant bits to one when generating a
6132 random number < q in the DSA library.
6135 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6136 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6137 the underlying transport is blocking) if a handshake took place.
6138 (The default behaviour is needed by applications such as s_client
6139 and s_server that use select() to determine when to use SSL_read;
6140 but for applications that know in advance when to expect data, it
6141 just makes things more complicated.)
6144 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6148 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6149 work better on such systems.
6150 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6152 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6153 Update PKCS12_parse() so it copies the friendlyName and the
6154 keyid to the certificates aux info.
6157 *) Fix bug in PKCS7_verify() which caused an infinite loop
6158 if there was more than one signature.
6159 [Sven Uszpelkat <su@celocom.de>]
6161 *) Major change in util/mkdef.pl to include extra information
6162 about each symbol, as well as presentig variables as well
6163 as functions. This change means that there's n more need
6164 to rebuild the .num files when some algorithms are excluded.
6167 *) Allow the verify time to be set by an application,
6168 rather than always using the current time.
6171 *) Phase 2 verify code reorganisation. The certificate
6172 verify code now looks up an issuer certificate by a
6173 number of criteria: subject name, authority key id
6174 and key usage. It also verifies self signed certificates
6175 by the same criteria. The main comparison function is
6176 X509_check_issued() which performs these checks.
6178 Lot of changes were necessary in order to support this
6179 without completely rewriting the lookup code.
6181 Authority and subject key identifier are now cached.
6183 The LHASH 'certs' is X509_STORE has now been replaced
6184 by a STACK_OF(X509_OBJECT). This is mainly because an
6185 LHASH can't store or retrieve multiple objects with
6186 the same hash value.
6188 As a result various functions (which were all internal
6189 use only) have changed to handle the new X509_STORE
6190 structure. This will break anything that messed round
6191 with X509_STORE internally.
6193 The functions X509_STORE_add_cert() now checks for an
6194 exact match, rather than just subject name.
6196 The X509_STORE API doesn't directly support the retrieval
6197 of multiple certificates matching a given criteria, however
6198 this can be worked round by performing a lookup first
6199 (which will fill the cache with candidate certificates)
6200 and then examining the cache for matches. This is probably
6201 the best we can do without throwing out X509_LOOKUP
6202 entirely (maybe later...).
6204 The X509_VERIFY_CTX structure has been enhanced considerably.
6206 All certificate lookup operations now go via a get_issuer()
6207 callback. Although this currently uses an X509_STORE it
6208 can be replaced by custom lookups. This is a simple way
6209 to bypass the X509_STORE hackery necessary to make this
6210 work and makes it possible to use more efficient techniques
6211 in future. A very simple version which uses a simple
6212 STACK for its trusted certificate store is also provided
6213 using X509_STORE_CTX_trusted_stack().
6215 The verify_cb() and verify() callbacks now have equivalents
6216 in the X509_STORE_CTX structure.
6218 X509_STORE_CTX also has a 'flags' field which can be used
6219 to customise the verify behaviour.
6222 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6223 excludes S/MIME capabilities.
6226 *) When a certificate request is read in keep a copy of the
6227 original encoding of the signed data and use it when outputing
6228 again. Signatures then use the original encoding rather than
6229 a decoded, encoded version which may cause problems if the
6230 request is improperly encoded.
6233 *) For consistency with other BIO_puts implementations, call
6234 buffer_write(b, ...) directly in buffer_puts instead of calling
6237 In BIO_puts, increment b->num_write as in BIO_write.
6238 [Peter.Sylvester@EdelWeb.fr]
6240 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6241 BN_zero, we may not return a BIGNUM with an array consisting of
6245 *) Avoid calling abort() from within the library when problems are
6246 detected, except if preprocessor symbols have been defined
6247 (such as REF_CHECK, BN_DEBUG etc.).
6250 *) New openssl application 'rsautl'. This utility can be
6251 used for low level RSA operations. DER public key
6252 BIO/fp routines also added.
6255 *) New Configure entry and patches for compiling on QNX 4.
6256 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6258 *) A demo state-machine implementation was sponsored by
6259 Nuron (http://www.nuron.com/) and is now available in
6260 demos/state_machine.
6263 *) New options added to the 'dgst' utility for signature
6264 generation and verification.
6267 *) Unrecognized PKCS#7 content types are now handled via a
6268 catch all ASN1_TYPE structure. This allows unsupported
6269 types to be stored as a "blob" and an application can
6270 encode and decode it manually.
6273 *) Fix various signed/unsigned issues to make a_strex.c
6275 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6277 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6278 length if passed a buffer. ASN1_INTEGER_to_BN failed
6279 if passed a NULL BN and its argument was negative.
6280 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6282 *) Modification to PKCS#7 encoding routines to output definite
6283 length encoding. Since currently the whole structures are in
6284 memory there's not real point in using indefinite length
6285 constructed encoding. However if OpenSSL is compiled with
6286 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6289 *) Added BIO_vprintf() and BIO_vsnprintf().
6292 *) Added more prefixes to parse for in the the strings written
6293 through a logging bio, to cover all the levels that are available
6294 through syslog. The prefixes are now:
6296 PANIC, EMERG, EMR => LOG_EMERG
6297 ALERT, ALR => LOG_ALERT
6298 CRIT, CRI => LOG_CRIT
6299 ERROR, ERR => LOG_ERR
6300 WARNING, WARN, WAR => LOG_WARNING
6301 NOTICE, NOTE, NOT => LOG_NOTICE
6302 INFO, INF => LOG_INFO
6303 DEBUG, DBG => LOG_DEBUG
6305 and as before, if none of those prefixes are present at the
6306 beginning of the string, LOG_ERR is chosen.
6308 On Win32, the LOG_* levels are mapped according to this:
6310 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6311 LOG_WARNING => EVENTLOG_WARNING_TYPE
6312 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6316 *) Made it possible to reconfigure with just the configuration
6317 argument "reconf" or "reconfigure". The command line arguments
6318 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6319 and are retrieved from there when reconfiguring.
6323 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6325 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6328 *) The obj_dat.pl script was messing up the sorting of object
6329 names. The reason was that it compared the quoted version
6330 of strings as a result "OCSP" > "OCSP Signing" because
6331 " > SPACE. Changed script to store unquoted versions of
6332 names and add quotes on output. It was also omitting some
6333 names from the lookup table if they were given a default
6334 value (that is if SN is missing it is given the same
6335 value as LN and vice versa), these are now added on the
6336 grounds that if an object has a name we should be able to
6337 look it up. Finally added warning output when duplicate
6338 short or long names are found.
6341 *) Changes needed for Tandem NSK.
6342 [Scott Uroff <scott@xypro.com>]
6344 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6345 RSA_padding_check_SSLv23(), special padding was never detected
6346 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6347 version rollback attacks was not effective.
6349 In s23_clnt.c, don't use special rollback-attack detection padding
6350 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6351 client; similarly, in s23_srvr.c, don't do the rollback check if
6352 SSL 2.0 is the only protocol enabled in the server.
6355 *) Make it possible to get hexdumps of unprintable data with 'openssl
6356 asn1parse'. By implication, the functions ASN1_parse_dump() and
6357 BIO_dump_indent() are added.
6360 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6361 these print out strings and name structures based on various
6362 flags including RFC2253 support and proper handling of
6363 multibyte characters. Added options to the 'x509' utility
6364 to allow the various flags to be set.
6367 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6368 Also change the functions X509_cmp_current_time() and
6369 X509_gmtime_adj() work with an ASN1_TIME structure,
6370 this will enable certificates using GeneralizedTime in validity
6371 dates to be checked.
6374 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6375 negative public key encodings) on by default,
6376 NO_NEG_PUBKEY_BUG can be set to disable it.
6379 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6380 content octets. An i2c_ASN1_OBJECT is unnecessary because
6381 the encoding can be trivially obtained from the structure.
6384 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6385 not read locks (CRYPTO_r_[un]lock).
6388 *) A first attempt at creating official support for shared
6389 libraries through configuration. I've kept it so the
6390 default is static libraries only, and the OpenSSL programs
6391 are always statically linked for now, but there are
6392 preparations for dynamic linking in place.
6393 This has been tested on Linux and Tru64.
6396 *) Randomness polling function for Win9x, as described in:
6397 Peter Gutmann, Software Generation of Practically Strong
6401 *) Fix so PRNG is seeded in req if using an already existing
6405 *) New options to smime application. -inform and -outform
6406 allow alternative formats for the S/MIME message including
6407 PEM and DER. The -content option allows the content to be
6408 specified separately. This should allow things like Netscape
6409 form signing output easier to verify.
6412 *) Fix the ASN1 encoding of tags using the 'long form'.
6415 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6416 STRING types. These convert content octets to and from the
6417 underlying type. The actual tag and length octets are
6418 already assumed to have been read in and checked. These
6419 are needed because all other string types have virtually
6420 identical handling apart from the tag. By having versions
6421 of the ASN1 functions that just operate on content octets
6422 IMPLICIT tagging can be handled properly. It also allows
6423 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6424 and ASN1_INTEGER are identical apart from the tag.
6427 *) Change the handling of OID objects as follows:
6429 - New object identifiers are inserted in objects.txt, following
6430 the syntax given in objects.README.
6431 - objects.pl is used to process obj_mac.num and create a new
6433 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6436 This is currently kind of a hack, and the perl code in objects.pl
6437 isn't very elegant, but it works as I intended. The simplest way
6438 to check that it worked correctly is to look in obj_dat.h and
6439 check the array nid_objs and make sure the objects haven't moved
6440 around (this is important!). Additions are OK, as well as
6441 consistent name changes.
6444 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6447 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6448 The given file adds to whatever has already been seeded into the
6449 random pool through the RANDFILE configuration file option or
6450 environment variable, or the default random state file.
6453 *) mkstack.pl now sorts each macro group into lexical order.
6454 Previously the output order depended on the order the files
6455 appeared in the directory, resulting in needless rewriting
6459 *) Patches to make OpenSSL compile under Win32 again. Mostly
6460 work arounds for the VC++ problem that it treats func() as
6461 func(void). Also stripped out the parts of mkdef.pl that
6462 added extra typesafe functions: these no longer exist.
6465 *) Reorganisation of the stack code. The macros are now all
6466 collected in safestack.h . Each macro is defined in terms of
6467 a "stack macro" of the form SKM_<name>(type, a, b). The
6468 DEBUG_SAFESTACK is now handled in terms of function casts,
6469 this has the advantage of retaining type safety without the
6470 use of additional functions. If DEBUG_SAFESTACK is not defined
6471 then the non typesafe macros are used instead. Also modified the
6472 mkstack.pl script to handle the new form. Needs testing to see
6473 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6474 the default if no major problems. Similar behaviour for ASN1_SET_OF
6475 and PKCS12_STACK_OF.
6478 *) When some versions of IIS use the 'NET' form of private key the
6479 key derivation algorithm is different. Normally MD5(password) is
6480 used as a 128 bit RC4 key. In the modified case
6481 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6482 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6483 as the old Netscape_RSA functions except they have an additional
6484 'sgckey' parameter which uses the modified algorithm. Also added
6485 an -sgckey command line option to the rsa utility. Thanks to
6486 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6487 algorithm to openssl-dev.
6490 *) The evp_local.h macros were using 'c.##kname' which resulted in
6491 invalid expansion on some systems (SCO 5.0.5 for example).
6492 Corrected to 'c.kname'.
6493 [Phillip Porch <root@theporch.com>]
6495 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6496 a STACK of email addresses from a certificate or request, these look
6497 in the subject name and the subject alternative name extensions and
6498 omit any duplicate addresses.
6501 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6502 This makes DSA verification about 2 % faster.
6505 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6506 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6507 plus overhead for 1024 bit moduli).
6508 This makes exponentiations about 0.5 % faster for 1024 bit
6509 exponents (as measured by "openssl speed rsa2048").
6512 *) Rename memory handling macros to avoid conflicts with other
6514 Malloc => OPENSSL_malloc
6515 Malloc_locked => OPENSSL_malloc_locked
6516 Realloc => OPENSSL_realloc
6517 Free => OPENSSL_free
6520 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6521 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6524 *) CygWin32 support.
6525 [John Jarvie <jjarvie@newsguy.com>]
6527 *) The type-safe stack code has been rejigged. It is now only compiled
6528 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6529 by default all type-specific stack functions are "#define"d back to
6530 standard stack functions. This results in more streamlined output
6531 but retains the type-safety checking possibilities of the original
6535 *) The STACK code has been cleaned up, and certain type declarations
6536 that didn't make a lot of sense have been brought in line. This has
6537 also involved a cleanup of sorts in safestack.h to more correctly
6538 map type-safe stack functions onto their plain stack counterparts.
6539 This work has also resulted in a variety of "const"ifications of
6540 lots of the code, especially "_cmp" operations which should normally
6541 be prototyped with "const" parameters anyway.
6544 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6545 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6546 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6547 where all of 'md' is used each time the PRNG is used, but 'state'
6548 is used only indexed by a cyclic counter. As entropy may not be
6549 well distributed from the beginning, 'md' is important as a
6550 chaining variable. However, the output function chains only half
6551 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6552 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6553 in all of 'state' being rewritten, with the new values depending
6554 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6557 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6558 the handshake is continued after ssl_verify_cert_chain();
6559 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6560 can lead to 'unexplainable' connection aborts later.
6561 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6563 *) Major EVP API cipher revision.
6564 Add hooks for extra EVP features. This allows various cipher
6565 parameters to be set in the EVP interface. Support added for variable
6566 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6567 setting of RC2 and RC5 parameters.
6569 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6572 Remove lots of duplicated code from the EVP library. For example *every*
6573 cipher init() function handles the 'iv' in the same way according to the
6574 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6575 for CFB and OFB modes they zero ctx->num.
6577 New functionality allows removal of S/MIME code RC2 hack.
6579 Most of the routines have the same form and so can be declared in terms
6582 By shifting this to the top level EVP_CipherInit() it can be removed from
6583 all individual ciphers. If the cipher wants to handle IVs or keys
6584 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6587 Change lots of functions like EVP_EncryptUpdate() to now return a
6588 value: although software versions of the algorithms cannot fail
6589 any installed hardware versions can.
6592 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6593 this option is set, tolerate broken clients that send the negotiated
6594 protocol version number instead of the requested protocol version
6598 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6599 i.e. non-zero for export ciphersuites, zero otherwise.
6600 Previous versions had this flag inverted, inconsistent with
6601 rsa_tmp_cb (..._TMP_RSA_CB).
6602 [Bodo Moeller; problem reported by Amit Chopra]
6604 *) Add missing DSA library text string. Work around for some IIS
6605 key files with invalid SEQUENCE encoding.
6608 *) Add a document (doc/standards.txt) that list all kinds of standards
6609 and so on that are implemented in OpenSSL.
6612 *) Enhance c_rehash script. Old version would mishandle certificates
6613 with the same subject name hash and wouldn't handle CRLs at all.
6614 Added -fingerprint option to crl utility, to support new c_rehash
6618 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6621 *) Fix for SSL server purpose checking. Server checking was
6622 rejecting certificates which had extended key usage present
6623 but no ssl client purpose.
6624 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6626 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6627 is a little unclear about how a blank password is handled.
6628 Since the password in encoded as a BMPString with terminating
6629 double NULL a zero length password would end up as just the
6630 double NULL. However no password at all is different and is
6631 handled differently in the PKCS#12 key generation code. NS
6632 treats a blank password as zero length. MSIE treats it as no
6633 password on export: but it will try both on import. We now do
6634 the same: PKCS12_parse() tries zero length and no password if
6635 the password is set to "" or NULL (NULL is now a valid password:
6636 it wasn't before) as does the pkcs12 application.
6639 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6640 perror when PEM_read_bio_X509_REQ fails, the error message must
6641 be obtained from the error queue.
6644 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6645 it in ERR_remove_state if appropriate, and change ERR_get_state
6646 accordingly to avoid race conditions (this is necessary because
6647 thread_hash is no longer constant once set).
6650 *) Bugfix for linux-elf makefile.one.
6653 *) RSA_get_default_method() will now cause a default
6654 RSA_METHOD to be chosen if one doesn't exist already.
6655 Previously this was only set during a call to RSA_new()
6656 or RSA_new_method(NULL) meaning it was possible for
6657 RSA_get_default_method() to return NULL.
6660 *) Added native name translation to the existing DSO code
6661 that will convert (if the flag to do so is set) filenames
6662 that are sufficiently small and have no path information
6663 into a canonical native form. Eg. "blah" converted to
6664 "libblah.so" or "blah.dll" etc.
6667 *) New function ERR_error_string_n(e, buf, len) which is like
6668 ERR_error_string(e, buf), but writes at most 'len' bytes
6669 including the 0 terminator. For ERR_error_string_n, 'buf'
6671 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6673 *) CONF library reworked to become more general. A new CONF
6674 configuration file reader "class" is implemented as well as a
6675 new functions (NCONF_*, for "New CONF") to handle it. The now
6676 old CONF_* functions are still there, but are reimplemented to
6677 work in terms of the new functions. Also, a set of functions
6678 to handle the internal storage of the configuration data is
6679 provided to make it easier to write new configuration file
6680 reader "classes" (I can definitely see something reading a
6681 configuration file in XML format, for example), called _CONF_*,
6682 or "the configuration storage API"...
6684 The new configuration file reading functions are:
6686 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6687 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6689 NCONF_default, NCONF_WIN32
6691 NCONF_dump_fp, NCONF_dump_bio
6693 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6694 NCONF_new creates a new CONF object. This works in the same way
6695 as other interfaces in OpenSSL, like the BIO interface.
6696 NCONF_dump_* dump the internal storage of the configuration file,
6697 which is useful for debugging. All other functions take the same
6698 arguments as the old CONF_* functions wth the exception of the
6699 first that must be a `CONF *' instead of a `LHASH *'.
6701 To make it easer to use the new classes with the old CONF_* functions,
6702 the function CONF_set_default_method is provided.
6705 *) Add '-tls1' option to 'openssl ciphers', which was already
6706 mentioned in the documentation but had not been implemented.
6707 (This option is not yet really useful because even the additional
6708 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6711 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6712 OpenSSL-based applications) load shared libraries and bind to
6713 them in a portable way.
6714 [Geoff Thorpe, with contributions from Richard Levitte]
6716 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6718 *) Make sure _lrotl and _lrotr are only used with MSVC.
6720 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6721 (the default implementation of RAND_status).
6723 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6724 to '-clrext' (= clear extensions), as intended and documented.
6725 [Bodo Moeller; inconsistency pointed out by Michael Attili
6728 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6729 was larger than the MD block size.
6730 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6732 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6733 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6734 using the passed key: if the passed key was a private key the result
6735 of X509_print(), for example, would be to print out all the private key
6739 *) des_quad_cksum() byte order bug fix.
6740 [Ulf Möller, using the problem description in krb4-0.9.7, where
6741 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6743 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6745 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6747 *) For easily testing in shell scripts whether some command
6748 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6749 returns with exit code 0 iff no command of the given name is available.
6750 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6751 the output goes to stdout and nothing is printed to stderr.
6752 Additional arguments are always ignored.
6754 Since for each cipher there is a command of the same name,
6755 the 'no-cipher' compilation switches can be tested this way.
6757 ('openssl no-XXX' is not able to detect pseudo-commands such
6758 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6761 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6764 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6765 is set; it will be thrown away anyway because each handshake creates
6767 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6768 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6769 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6770 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6773 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6774 'Q' and 'R' lose their special meanings (quit/renegotiate).
6775 This is part of what -quiet does; unlike -quiet, -ign_eof
6776 does not suppress any output.
6779 *) Add compatibility options to the purpose and trust code. The
6780 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6781 accepts a certificate or CA, this was the previous behaviour,
6782 with all the associated security issues.
6784 X509_TRUST_COMPAT is the old trust behaviour: only and
6785 automatically trust self signed roots in certificate store. A
6786 new trust setting X509_TRUST_DEFAULT is used to specify that
6787 a purpose has no associated trust setting and it should instead
6788 use the value in the default purpose.
6791 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6792 and fix a memory leak.
6795 *) In util/mkerr.pl (which implements 'make errors'), preserve
6796 reason strings from the previous version of the .c file, as
6797 the default to have only downcase letters (and digits) in
6798 automatically generated reasons codes is not always appropriate.
6801 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6802 using strerror. Previously, ERR_reason_error_string() returned
6803 library names as reason strings for SYSerr; but SYSerr is a special
6804 case where small numbers are errno values, not library numbers.
6807 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6808 converts DSA parameters into DH parameters. (When creating parameters,
6809 DSA_generate_parameters is used.)
6812 *) Include 'length' (recommended exponent length) in C code generated
6813 by 'openssl dhparam -C'.
6816 *) The second argument to set_label in perlasm was already being used
6817 so couldn't be used as a "file scope" flag. Moved to third argument
6821 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6822 instead of RAND_bytes for encryption IVs and salts.
6825 *) Include RAND_status() into RAND_METHOD instead of implementing
6826 it only for md_rand.c Otherwise replacing the PRNG by calling
6827 RAND_set_rand_method would be impossible.
6830 *) Don't let DSA_generate_key() enter an infinite loop if the random
6831 number generation fails.
6834 *) New 'rand' application for creating pseudo-random output.
6837 *) Added configuration support for Linux/IA64
6838 [Rolf Haberrecker <rolf@suse.de>]
6840 *) Assembler module support for Mingw32.
6843 *) Shared library support for HPUX (in shlib/).
6844 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6846 *) Shared library support for Solaris gcc.
6847 [Lutz Behnke <behnke@trustcenter.de>]
6849 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6851 *) PKCS7_encrypt() was adding text MIME headers twice because they
6852 were added manually and by SMIME_crlf_copy().
6855 *) In bntest.c don't call BN_rand with zero bits argument.
6856 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6858 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6859 case was implemented. This caused BN_div_recp() to fail occasionally.
6862 *) Add an optional second argument to the set_label() in the perl
6863 assembly language builder. If this argument exists and is set
6864 to 1 it signals that the assembler should use a symbol whose
6865 scope is the entire file, not just the current function. This
6866 is needed with MASM which uses the format label:: for this scope.
6867 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6869 *) Change the ASN1 types so they are typedefs by default. Before
6870 almost all types were #define'd to ASN1_STRING which was causing
6871 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6875 *) Change names of new functions to the new get1/get0 naming
6876 convention: After 'get1', the caller owns a reference count
6877 and has to call ..._free; 'get0' returns a pointer to some
6878 data structure without incrementing reference counters.
6879 (Some of the existing 'get' functions increment a reference
6880 counter, some don't.)
6881 Similarly, 'set1' and 'add1' functions increase reference
6882 counters or duplicate objects.
6885 *) Allow for the possibility of temp RSA key generation failure:
6886 the code used to assume it always worked and crashed on failure.
6889 *) Fix potential buffer overrun problem in BIO_printf().
6890 [Ulf Möller, using public domain code by Patrick Powell; problem
6891 pointed out by David Sacerdote <das33@cornell.edu>]
6893 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6894 RAND_egd() and RAND_status(). In the command line application,
6895 the EGD socket can be specified like a seed file using RANDFILE
6899 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6900 Some CAs (e.g. Verisign) distribute certificates in this form.
6903 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6904 list to exclude them. This means that no special compilation option
6905 is needed to use anonymous DH: it just needs to be included in the
6909 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6910 EVP_MD_type. The old functionality is available in a new macro called
6911 EVP_MD_md(). Change code that uses it and update docs.
6914 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6915 where the 'void *' argument is replaced by a function pointer argument.
6916 Previously 'void *' was abused to point to functions, which works on
6917 many platforms, but is not correct. As these functions are usually
6918 called by macros defined in OpenSSL header files, most source code
6919 should work without changes.
6922 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6923 sections with information on -D... compiler switches used for
6924 compiling the library so that applications can see them. To enable
6925 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6926 must be defined. E.g.,
6927 #define OPENSSL_ALGORITHM_DEFINES
6928 #include <openssl/opensslconf.h>
6929 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6930 [Richard Levitte, Ulf and Bodo Möller]
6932 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6936 *) Change the 'other' type in certificate aux info to a STACK_OF
6937 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6938 the required ASN1 format: arbitrary types determined by an OID.
6941 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6942 argument to 'req'. This is not because the function is newer or
6943 better than others it just uses the work 'NEW' in the certificate
6944 request header lines. Some software needs this.
6947 *) Reorganise password command line arguments: now passwords can be
6948 obtained from various sources. Delete the PEM_cb function and make
6949 it the default behaviour: i.e. if the callback is NULL and the
6950 usrdata argument is not NULL interpret it as a null terminated pass
6951 phrase. If usrdata and the callback are NULL then the pass phrase
6952 is prompted for as usual.
6955 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6956 the support is automatically enabled. The resulting binaries will
6957 autodetect the card and use it if present.
6958 [Ben Laurie and Compaq Inc.]
6960 *) Work around for Netscape hang bug. This sends certificate request
6961 and server done in one record. Since this is perfectly legal in the
6962 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6963 the bugs/SSLv3 entry for more info.
6966 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6969 *) Add -rand argument to smime and pkcs12 applications and read/write
6973 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6976 *) Add command line password options to the remaining applications.
6979 *) Bug fix for BN_div_recp() for numerators with an even number of
6983 *) More tests in bntest.c, and changed test_bn output.
6986 *) ./config recognizes MacOS X now.
6989 *) Bug fix for BN_div() when the first words of num and divsor are
6990 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6993 *) Add support for various broken PKCS#8 formats, and command line
6994 options to produce them.
6997 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6998 get temporary BIGNUMs from a BN_CTX.
7001 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7005 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7006 include a #define from the old name to the new. The original intent
7007 was that statically linked binaries could for example just call
7008 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7009 link with digests. This never worked becayse SSLeay_add_all_digests()
7010 and SSLeay_add_all_ciphers() were in the same source file so calling
7011 one would link with the other. They are now in separate source files.
7014 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7017 *) Use a less unusual form of the Miller-Rabin primality test (it used
7018 a binary algorithm for exponentiation integrated into the Miller-Rabin
7019 loop, our standard modexp algorithms are faster).
7022 *) Support for the EBCDIC character set completed.
7023 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7025 *) Source code cleanups: use const where appropriate, eliminate casts,
7026 use void * instead of char * in lhash.
7029 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7030 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7031 this the server could overwrite ephemeral keys that the client
7035 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7036 using 50 iterations of the Rabin-Miller test.
7038 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7039 iterations of the Rabin-Miller test as required by the appendix
7040 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7041 As BN_is_prime_fasttest includes trial division, DSA parameter
7042 generation becomes much faster.
7044 This implies a change for the callback functions in DSA_is_prime
7045 and DSA_generate_parameters: The callback function is called once
7046 for each positive witness in the Rabin-Miller test, not just
7047 occasionally in the inner loop; and the parameters to the
7048 callback function now provide an iteration count for the outer
7049 loop rather than for the current invocation of the inner loop.
7050 DSA_generate_parameters additionally can call the callback
7051 function with an 'iteration count' of -1, meaning that a
7052 candidate has passed the trial division test (when q is generated
7053 from an application-provided seed, trial division is skipped).
7056 *) New function BN_is_prime_fasttest that optionally does trial
7057 division before starting the Rabin-Miller test and has
7058 an additional BN_CTX * argument (whereas BN_is_prime always
7059 has to allocate at least one BN_CTX).
7060 'callback(1, -1, cb_arg)' is called when a number has passed the
7061 trial division stage.
7064 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7068 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7071 *) New function BN_pseudo_rand().
7074 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7075 bignum version of BN_from_montgomery() with the working code from
7076 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7080 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7081 made it impossible to use the same SSL_SESSION data structure in
7082 SSL2 clients in multiple threads.
7085 *) The return value of RAND_load_file() no longer counts bytes obtained
7086 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7087 to seed the PRNG (previously an explicit byte count was required).
7088 [Ulf Möller, Bodo Möller]
7090 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7091 used (char *) instead of (void *) and had casts all over the place.
7094 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7097 *) Retain source code compatibility for BN_prime_checks macro:
7098 BN_is_prime(..., BN_prime_checks, ...) now uses
7099 BN_prime_checks_for_size to determine the appropriate number of
7100 Rabin-Miller iterations.
7103 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7104 DH_CHECK_P_NOT_SAFE_PRIME.
7105 (Check if this is true? OpenPGP calls them "strong".)
7108 *) Merge the functionality of "dh" and "gendh" programs into a new program
7109 "dhparam". The old programs are retained for now but will handle DH keys
7110 (instead of parameters) in future.
7113 *) Make the ciphers, s_server and s_client programs check the return values
7114 when a new cipher list is set.
7117 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7118 ciphers. Before when the 56bit ciphers were enabled the sorting was
7121 The syntax for the cipher sorting has been extended to support sorting by
7122 cipher-strength (using the strength_bits hard coded in the tables).
7123 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7125 Fix a bug in the cipher-command parser: when supplying a cipher command
7126 string with an "undefined" symbol (neither command nor alphanumeric
7127 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7128 an error is flagged.
7130 Due to the strength-sorting extension, the code of the
7131 ssl_create_cipher_list() function was completely rearranged. I hope that
7132 the readability was also increased :-)
7133 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7135 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7136 for the first serial number and places 2 in the serial number file. This
7137 avoids problems when the root CA is created with serial number zero and
7138 the first user certificate has the same issuer name and serial number
7142 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7143 the new code. Add documentation for this stuff.
7146 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7147 X509_*() to X509at_*() on the grounds that they don't handle X509
7148 structures and behave in an analagous way to the X509v3 functions:
7149 they shouldn't be called directly but wrapper functions should be used
7152 So we also now have some wrapper functions that call the X509at functions
7153 when passed certificate requests. (TO DO: similar things can be done with
7154 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7155 things. Some of these need some d2i or i2d and print functionality
7156 because they handle more complex structures.)
7159 *) Add missing #ifndefs that caused missing symbols when building libssl
7160 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7161 NO_RSA in ssl/s2*.c.
7162 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7164 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7165 has a return value which indicates the quality of the random data
7166 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7167 error queue. New function RAND_pseudo_bytes() generates output that is
7168 guaranteed to be unique but not unpredictable. RAND_add is like
7169 RAND_seed, but takes an extra argument for an entropy estimate
7170 (RAND_seed always assumes full entropy).
7173 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7174 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7175 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7176 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7177 false-positive rate of at most 2^-80 for random input.
7180 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7183 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7184 in the 0.9.5 release), this returns the chain
7185 from an X509_CTX structure with a dup of the stack and all
7186 the X509 reference counts upped: so the stack will exist
7187 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7190 Also make SSL_SESSION_print() print out the verify return
7194 *) Add manpage for the pkcs12 command. Also change the default
7195 behaviour so MAC iteration counts are used unless the new
7196 -nomaciter option is used. This improves file security and
7197 only older versions of MSIE (4.0 for example) need it.
7200 *) Honor the no-xxx Configure options when creating .DEF files.
7203 *) Add PKCS#10 attributes to field table: challengePassword,
7204 unstructuredName and unstructuredAddress. These are taken from
7205 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7206 international characters are used.
7208 More changes to X509_ATTRIBUTE code: allow the setting of types
7209 based on strings. Remove the 'loc' parameter when adding
7210 attributes because these will be a SET OF encoding which is sorted
7214 *) Initial changes to the 'req' utility to allow request generation
7215 automation. This will allow an application to just generate a template
7216 file containing all the field values and have req construct the
7219 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7220 used all over the place including certificate requests and PKCS#7
7221 structures. They are currently handled manually where necessary with
7222 some primitive wrappers for PKCS#7. The new functions behave in a
7223 manner analogous to the X509 extension functions: they allow
7224 attributes to be looked up by NID and added.
7226 Later something similar to the X509V3 code would be desirable to
7227 automatically handle the encoding, decoding and printing of the
7228 more complex types. The string types like challengePassword can
7229 be handled by the string table functions.
7231 Also modified the multi byte string table handling. Now there is
7232 a 'global mask' which masks out certain types. The table itself
7233 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7234 is useful when for example there is only one permissible type
7235 (as in countryName) and using the mask might result in no valid
7239 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7240 SSL_get_peer_finished to allow applications to obtain the latest
7241 Finished messages sent to the peer or expected from the peer,
7242 respectively. (SSL_get_peer_finished is usually the Finished message
7243 actually received from the peer, otherwise the protocol will be aborted.)
7245 As the Finished message are message digests of the complete handshake
7246 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7247 be used for external authentication procedures when the authentication
7248 provided by SSL/TLS is not desired or is not enough.
7251 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7252 the host supports BWX extension and if Compaq C is present on the
7253 $PATH. Just exploiting of the BWX extension results in 20-30%
7254 performance kick for some algorithms, e.g. DES and RC4 to mention
7255 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7259 *) Add support for MS "fast SGC". This is arguably a violation of the
7260 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7261 weak crypto and after checking the certificate is SGC a second one
7262 with strong crypto. MS SGC stops the first handshake after receiving
7263 the server certificate message and sends a second client hello. Since
7264 a server will typically do all the time consuming operations before
7265 expecting any further messages from the client (server key exchange
7266 is the most expensive) there is little difference between the two.
7268 To get OpenSSL to support MS SGC we have to permit a second client
7269 hello message after we have sent server done. In addition we have to
7270 reset the MAC if we do get this second client hello.
7273 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7274 if a DER encoded private key is RSA or DSA traditional format. Changed
7275 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7276 format DER encoded private key. Newer code should use PKCS#8 format which
7277 has the key type encoded in the ASN1 structure. Added DER private key
7278 support to pkcs8 application.
7281 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7282 ciphersuites has been selected (as required by the SSL 3/TLS 1
7283 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7284 is set, we interpret this as a request to violate the specification
7285 (the worst that can happen is a handshake failure, and 'correct'
7286 behaviour would result in a handshake failure anyway).
7289 *) In SSL_CTX_add_session, take into account that there might be multiple
7290 SSL_SESSION structures with the same session ID (e.g. when two threads
7291 concurrently obtain them from an external cache).
7292 The internal cache can handle only one SSL_SESSION with a given ID,
7293 so if there's a conflict, we now throw out the old one to achieve
7297 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7298 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7299 some routines that use cipher OIDs: some ciphers do not have OIDs
7300 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7304 *) Simplify the trust setting structure and code. Now we just have
7305 two sequences of OIDs for trusted and rejected settings. These will
7306 typically have values the same as the extended key usage extension
7307 and any application specific purposes.
7309 The trust checking code now has a default behaviour: it will just
7310 check for an object with the same NID as the passed id. Functions can
7311 be provided to override either the default behaviour or the behaviour
7312 for a given id. SSL client, server and email already have functions
7313 in place for compatibility: they check the NID and also return "trusted"
7314 if the certificate is self signed.
7317 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7318 traditional format into an EVP_PKEY structure.
7321 *) Add a password callback function PEM_cb() which either prompts for
7322 a password if usr_data is NULL or otherwise assumes it is a null
7323 terminated password. Allow passwords to be passed on command line
7324 environment or config files in a few more utilities.
7327 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7328 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7329 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7330 Update documentation.
7333 *) Support for ASN1 "NULL" type. This could be handled before by using
7334 ASN1_TYPE but there wasn't any function that would try to read a NULL
7335 and produce an error if it couldn't. For compatibility we also have
7336 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7337 don't allocate anything because they don't need to.
7340 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7342 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7344 *) Rebuild of the memory allocation routines used by OpenSSL code and
7345 possibly others as well. The purpose is to make an interface that
7346 provide hooks so anyone can build a separate set of allocation and
7347 deallocation routines to be used by OpenSSL, for example memory
7348 pool implementations, or something else, which was previously hard
7349 since Malloc(), Realloc() and Free() were defined as macros having
7350 the values malloc, realloc and free, respectively (except for Win32
7351 compilations). The same is provided for memory debugging code.
7352 OpenSSL already comes with functionality to find memory leaks, but
7353 this gives people a chance to debug other memory problems.
7355 With these changes, a new set of functions and macros have appeared:
7357 CRYPTO_set_mem_debug_functions() [F]
7358 CRYPTO_get_mem_debug_functions() [F]
7359 CRYPTO_dbg_set_options() [F]
7360 CRYPTO_dbg_get_options() [F]
7361 CRYPTO_malloc_debug_init() [M]
7363 The memory debug functions are NULL by default, unless the library
7364 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7365 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7366 gives the standard debugging functions that come with OpenSSL) or
7367 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7368 provided by the library user) must be used. When the standard
7369 debugging functions are used, CRYPTO_dbg_set_options can be used to
7370 request additional information:
7371 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7372 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7374 Also, things like CRYPTO_set_mem_functions will always give the
7375 expected result (the new set of functions is used for allocation
7376 and deallocation) at all times, regardless of platform and compiler
7379 To finish it up, some functions that were never use in any other
7380 way than through macros have a new API and new semantic:
7383 CRYPTO_dbg_realloc()
7386 All macros of value have retained their old syntax.
7387 [Richard Levitte and Bodo Moeller]
7389 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7390 ordering of SMIMECapabilities wasn't in "strength order" and there
7391 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7395 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7396 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7397 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7399 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7400 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7401 functionality to handle multipart/signed properly) and a utility
7402 called 'smime' to call all this stuff. This is based on code I
7403 originally wrote for Celo who have kindly allowed it to be
7404 included in OpenSSL.
7407 *) Add variants des_set_key_checked and des_set_key_unchecked of
7408 des_set_key (aka des_key_sched). Global variable des_check_key
7409 decides which of these is called by des_set_key; this way
7410 des_check_key behaves as it always did, but applications and
7411 the library itself, which was buggy for des_check_key == 1,
7412 have a cleaner way to pick the version they need.
7415 *) New function PKCS12_newpass() which changes the password of a
7419 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7420 dynamic mix. In both cases the ids can be used as an index into the
7421 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7422 functions so they accept a list of the field values and the
7423 application doesn't need to directly manipulate the X509_TRUST
7427 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7431 *) Modify the way the V3 extension code looks up extensions. This now
7432 works in a similar way to the object code: we have some "standard"
7433 extensions in a static table which is searched with OBJ_bsearch()
7434 and the application can add dynamic ones if needed. The file
7435 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7436 updated whenever a new extension is added to the core code and kept
7437 in ext_nid order. There is a simple program 'tabtest.c' which checks
7438 this. New extensions are not added too often so this file can readily
7439 be maintained manually.
7441 There are two big advantages in doing things this way. The extensions
7442 can be looked up immediately and no longer need to be "added" using
7443 X509V3_add_standard_extensions(): this function now does nothing.
7444 [Side note: I get *lots* of email saying the extension code doesn't
7445 work because people forget to call this function]
7446 Also no dynamic allocation is done unless new extensions are added:
7447 so if we don't add custom extensions there is no need to call
7448 X509V3_EXT_cleanup().
7451 *) Modify enc utility's salting as follows: make salting the default. Add a
7452 magic header, so unsalted files fail gracefully instead of just decrypting
7453 to garbage. This is because not salting is a big security hole, so people
7454 should be discouraged from doing it.
7457 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7458 digest to be passed on the command line but it only used this
7459 parameter when signing a certificate. Modified so all relevant
7460 operations are affected by the digest parameter including the
7461 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7462 DSA key was used because it didn't fix the digest.
7465 *) Initial certificate chain verify code. Currently tests the untrusted
7466 certificates for consistency with the verify purpose (which is set
7467 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7469 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7470 this is because it will reject chains with invalid extensions whereas
7471 every previous version of OpenSSL and SSLeay made no checks at all.
7473 Trust code: checks the root CA for the relevant trust settings. Trust
7474 settings have an initial value consistent with the verify purpose: e.g.
7475 if the verify purpose is for SSL client use it expects the CA to be
7476 trusted for SSL client use. However the default value can be changed to
7477 permit custom trust settings: one example of this would be to only trust
7478 certificates from a specific "secure" set of CAs.
7480 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7481 which should be used for version portability: especially since the
7482 verify structure is likely to change more often now.
7484 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7485 to set them. If not set then assume SSL clients will verify SSL servers
7488 Two new options to the verify program: -untrusted allows a set of
7489 untrusted certificates to be passed in and -purpose which sets the
7490 intended purpose of the certificate. If a purpose is set then the
7491 new chain verify code is used to check extension consistency.
7494 *) Support for the authority information access extension.
7497 *) Modify RSA and DSA PEM read routines to transparently handle
7498 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7499 public keys in a format compatible with certificate
7500 SubjectPublicKeyInfo structures. Unfortunately there were already
7501 functions called *_PublicKey_* which used various odd formats so
7502 these are retained for compatibility: however the DSA variants were
7503 never in a public release so they have been deleted. Changed dsa/rsa
7504 utilities to handle the new format: note no releases ever handled public
7505 keys so we should be OK.
7507 The primary motivation for this change is to avoid the same fiasco
7508 that dogs private keys: there are several incompatible private key
7509 formats some of which are standard and some OpenSSL specific and
7510 require various evil hacks to allow partial transparent handling and
7511 even then it doesn't work with DER formats. Given the option anything
7512 other than PKCS#8 should be dumped: but the other formats have to
7513 stay in the name of compatibility.
7515 With public keys and the benefit of hindsight one standard format
7516 is used which works with EVP_PKEY, RSA or DSA structures: though
7517 it clearly returns an error if you try to read the wrong kind of key.
7519 Added a -pubkey option to the 'x509' utility to output the public key.
7520 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7521 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7522 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7523 that do the same as the EVP_PKEY_assign_*() except they up the
7524 reference count of the added key (they don't "swallow" the
7528 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7529 CRLs would fail if the file contained no certificates or no CRLs:
7530 added a new function to read in both types and return the number
7531 read: this means that if none are read it will be an error. The
7532 DER versions of the certificate and CRL reader would always fail
7533 because it isn't possible to mix certificates and CRLs in DER format
7534 without choking one or the other routine. Changed this to just read
7535 a certificate: this is the best we can do. Also modified the code
7536 in apps/verify.c to take notice of return codes: it was previously
7537 attempting to read in certificates from NULL pointers and ignoring
7538 any errors: this is one reason why the cert and CRL reader seemed
7539 to work. It doesn't check return codes from the default certificate
7540 routines: these may well fail if the certificates aren't installed.
7543 *) Code to support otherName option in GeneralName.
7546 *) First update to verify code. Change the verify utility
7547 so it warns if it is passed a self signed certificate:
7548 for consistency with the normal behaviour. X509_verify
7549 has been modified to it will now verify a self signed
7550 certificate if *exactly* the same certificate appears
7551 in the store: it was previously impossible to trust a
7552 single self signed certificate. This means that:
7553 openssl verify ss.pem
7554 now gives a warning about a self signed certificate but
7555 openssl verify -CAfile ss.pem ss.pem
7559 *) For servers, store verify_result in SSL_SESSION data structure
7560 (and add it to external session representation).
7561 This is needed when client certificate verifications fails,
7562 but an application-provided verification callback (set by
7563 SSL_CTX_set_cert_verify_callback) allows accepting the session
7564 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7565 but returns 1): When the session is reused, we have to set
7566 ssl->verify_result to the appropriate error code to avoid
7568 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7570 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7571 case in PKCS7_dataInit() where the signed PKCS7 structure
7572 didn't contain any existing data because it was being created.
7573 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7575 *) Add a salt to the key derivation routines in enc.c. This
7576 forms the first 8 bytes of the encrypted file. Also add a
7577 -S option to allow a salt to be input on the command line.
7580 *) New function X509_cmp(). Oddly enough there wasn't a function
7581 to compare two certificates. We do this by working out the SHA1
7582 hash and comparing that. X509_cmp() will be needed by the trust
7586 *) SSL_get1_session() is like SSL_get_session(), but increments
7587 the reference count in the SSL_SESSION returned.
7588 [Geoff Thorpe <geoff@eu.c2.net>]
7590 *) Fix for 'req': it was adding a null to request attributes.
7591 Also change the X509_LOOKUP and X509_INFO code to handle
7592 certificate auxiliary information.
7595 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7599 *) Add the possibility to add extra information to the memory leak
7600 detecting output, to form tracebacks, showing from where each
7601 allocation was originated: CRYPTO_push_info("constant string") adds
7602 the string plus current file name and line number to a per-thread
7603 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7604 is like calling CYRPTO_pop_info() until the stack is empty.
7605 Also updated memory leak detection code to be multi-thread-safe.
7608 *) Add options -text and -noout to pkcs7 utility and delete the
7609 encryption options which never did anything. Update docs.
7612 *) Add options to some of the utilities to allow the pass phrase
7613 to be included on either the command line (not recommended on
7614 OSes like Unix) or read from the environment. Update the
7615 manpages and fix a few bugs.
7618 *) Add a few manpages for some of the openssl commands.
7621 *) Fix the -revoke option in ca. It was freeing up memory twice,
7622 leaking and not finding already revoked certificates.
7625 *) Extensive changes to support certificate auxiliary information.
7626 This involves the use of X509_CERT_AUX structure and X509_AUX
7627 functions. An X509_AUX function such as PEM_read_X509_AUX()
7628 can still read in a certificate file in the usual way but it
7629 will also read in any additional "auxiliary information". By
7630 doing things this way a fair degree of compatibility can be
7631 retained: existing certificates can have this information added
7632 using the new 'x509' options.
7634 Current auxiliary information includes an "alias" and some trust
7635 settings. The trust settings will ultimately be used in enhanced
7636 certificate chain verification routines: currently a certificate
7637 can only be trusted if it is self signed and then it is trusted
7641 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7642 The problem was that one of the replacement routines had not been working
7643 since SSLeay releases. For now the offending routine has been replaced
7644 with non-optimised assembler. Even so, this now gives around 95%
7645 performance improvement for 1024 bit RSA signs.
7648 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7649 handling. Most clients have the effective key size in bits equal to
7650 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7651 A few however don't do this and instead use the size of the decrypted key
7652 to determine the RC2 key length and the AlgorithmIdentifier to determine
7653 the effective key length. In this case the effective key length can still
7654 be 40 bits but the key length can be 168 bits for example. This is fixed
7655 by manually forcing an RC2 key into the EVP_PKEY structure because the
7656 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7657 the key length and effective key length are equal.
7660 *) Add a bunch of functions that should simplify the creation of
7661 X509_NAME structures. Now you should be able to do:
7662 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7663 and have it automatically work out the correct field type and fill in
7664 the structures. The more adventurous can try:
7665 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7666 and it will (hopefully) work out the correct multibyte encoding.
7669 *) Change the 'req' utility to use the new field handling and multibyte
7670 copy routines. Before the DN field creation was handled in an ad hoc
7671 way in req, ca, and x509 which was rather broken and didn't support
7672 BMPStrings or UTF8Strings. Since some software doesn't implement
7673 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7674 using the dirstring_type option. See the new comment in the default
7675 openssl.cnf for more info.
7678 *) Make crypto/rand/md_rand.c more robust:
7679 - Assure unique random numbers after fork().
7680 - Make sure that concurrent threads access the global counter and
7681 md serializably so that we never lose entropy in them
7682 or use exactly the same state in multiple threads.
7683 Access to the large state is not always serializable because
7684 the additional locking could be a performance killer, and
7685 md should be large enough anyway.
7688 *) New file apps/app_rand.c with commonly needed functionality
7689 for handling the random seed file.
7691 Use the random seed file in some applications that previously did not:
7693 dsaparam -genkey (which also ignored its '-rand' option),
7696 x509 (when signing).
7697 Except on systems with /dev/urandom, it is crucial to have a random
7698 seed file at least for key creation, DSA signing, and for DH exchanges;
7699 for RSA signatures we could do without one.
7701 gendh and gendsa (unlike genrsa) used to read only the first byte
7702 of each file listed in the '-rand' option. The function as previously
7703 found in genrsa is now in app_rand.c and is used by all programs
7704 that support '-rand'.
7707 *) In RAND_write_file, use mode 0600 for creating files;
7708 don't just chmod when it may be too late.
7711 *) Report an error from X509_STORE_load_locations
7712 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7715 *) New function ASN1_mbstring_copy() this copies a string in either
7716 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7717 into an ASN1_STRING type. A mask of permissible types is passed
7718 and it chooses the "minimal" type to use or an error if not type
7722 *) Add function equivalents to the various macros in asn1.h. The old
7723 macros are retained with an M_ prefix. Code inside the library can
7724 use the M_ macros. External code (including the openssl utility)
7725 should *NOT* in order to be "shared library friendly".
7728 *) Add various functions that can check a certificate's extensions
7729 to see if it usable for various purposes such as SSL client,
7730 server or S/MIME and CAs of these types. This is currently
7731 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7732 verification. Also added a -purpose flag to x509 utility to
7733 print out all the purposes.
7736 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7740 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7741 for, obtain and decode and extension and obtain its critical flag.
7742 This allows all the necessary extension code to be handled in a
7743 single function call.
7746 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7747 platforms. See crypto/rc4/rc4_enc.c for further details.
7750 *) New -noout option to asn1parse. This causes no output to be produced
7751 its main use is when combined with -strparse and -out to extract data
7752 from a file (which may not be in ASN.1 format).
7755 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7756 when producing the local key id.
7757 [Richard Levitte <levitte@stacken.kth.se>]
7759 *) New option -dhparam in s_server. This allows a DH parameter file to be
7760 stated explicitly. If it is not stated then it tries the first server
7761 certificate file. The previous behaviour hard coded the filename
7765 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7766 a public key to be input or output. For example:
7767 openssl rsa -in key.pem -pubout -out pubkey.pem
7768 Also added necessary DSA public key functions to handle this.
7771 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7772 in the message. This was handled by allowing
7773 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7774 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7776 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7777 to the end of the strings whereas this didn't. This would cause problems
7778 if strings read with d2i_ASN1_bytes() were later modified.
7779 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7781 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7782 data and it contains EOF it will end up returning an error. This is
7783 caused by input 46 bytes long. The cause is due to the way base64
7784 BIOs find the start of base64 encoded data. They do this by trying a
7785 trial decode on each line until they find one that works. When they
7786 do a flag is set and it starts again knowing it can pass all the
7787 data directly through the decoder. Unfortunately it doesn't reset
7788 the context it uses. This means that if EOF is reached an attempt
7789 is made to pass two EOFs through the context and this causes the
7790 resulting error. This can also cause other problems as well. As is
7791 usual with these problems it takes *ages* to find and the fix is
7792 trivial: move one line.
7793 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7795 *) Ugly workaround to get s_client and s_server working under Windows. The
7796 old code wouldn't work because it needed to select() on sockets and the
7797 tty (for keypresses and to see if data could be written). Win32 only
7798 supports select() on sockets so we select() with a 1s timeout on the
7799 sockets and then see if any characters are waiting to be read, if none
7800 are present then we retry, we also assume we can always write data to
7801 the tty. This isn't nice because the code then blocks until we've
7802 received a complete line of data and it is effectively polling the
7803 keyboard at 1s intervals: however it's quite a bit better than not
7804 working at all :-) A dedicated Windows application might handle this
7805 with an event loop for example.
7808 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7809 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7810 will be called when RSA_sign() and RSA_verify() are used. This is useful
7811 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7812 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7813 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7814 This necessitated the support of an extra signature type NID_md5_sha1
7815 for SSL signatures and modifications to the SSL library to use it instead
7816 of calling RSA_public_decrypt() and RSA_private_encrypt().
7819 *) Add new -verify -CAfile and -CApath options to the crl program, these
7820 will lookup a CRL issuers certificate and verify the signature in a
7821 similar way to the verify program. Tidy up the crl program so it
7822 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7823 less strict. It will now permit CRL extensions even if it is not
7824 a V2 CRL: this will allow it to tolerate some broken CRLs.
7827 *) Initialize all non-automatic variables each time one of the openssl
7828 sub-programs is started (this is necessary as they may be started
7829 multiple times from the "OpenSSL>" prompt).
7830 [Lennart Bang, Bodo Moeller]
7832 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7833 removing all other RSA functionality (this is what NO_RSA does). This
7834 is so (for example) those in the US can disable those operations covered
7835 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7839 *) Non-copying interface to BIO pairs.
7840 (still largely untested)
7843 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7844 ASCII string. This was handled independently in various places before.
7847 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7848 UTF8 strings a character at a time.
7851 *) Use client_version from client hello to select the protocol
7852 (s23_srvr.c) and for RSA client key exchange verification
7853 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7856 *) Add various utility functions to handle SPKACs, these were previously
7857 handled by poking round in the structure internals. Added new function
7858 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7859 print, verify and generate SPKACs. Based on an original idea from
7860 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7863 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7866 *) Allow the config file extension section to be overwritten on the
7867 command line. Based on an original idea from Massimiliano Pala
7868 <madwolf@comune.modena.it>. The new option is called -extensions
7869 and can be applied to ca, req and x509. Also -reqexts to override
7870 the request extensions in req and -crlexts to override the crl extensions
7874 *) Add new feature to the SPKAC handling in ca. Now you can include
7875 the same field multiple times by preceding it by "XXXX." for example:
7878 this is the same syntax as used in the req config file.
7881 *) Allow certificate extensions to be added to certificate requests. These
7882 are specified in a 'req_extensions' option of the req section of the
7883 config file. They can be printed out with the -text option to req but
7884 are otherwise ignored at present.
7887 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7888 data read consists of only the final block it would not decrypted because
7889 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7890 A misplaced 'break' also meant the decrypted final block might not be
7891 copied until the next read.
7894 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7895 a few extra parameters to the DH structure: these will be useful if
7896 for example we want the value of 'q' or implement X9.42 DH.
7899 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7900 provides hooks that allow the default DSA functions or functions on a
7901 "per key" basis to be replaced. This allows hardware acceleration and
7902 hardware key storage to be handled without major modification to the
7903 library. Also added low level modexp hooks and CRYPTO_EX structure and
7904 associated functions.
7907 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7908 as "read only": it can't be written to and the buffer it points to will
7909 not be freed. Reading from a read only BIO is much more efficient than
7910 a normal memory BIO. This was added because there are several times when
7911 an area of memory needs to be read from a BIO. The previous method was
7912 to create a memory BIO and write the data to it, this results in two
7913 copies of the data and an O(n^2) reading algorithm. There is a new
7914 function BIO_new_mem_buf() which creates a read only memory BIO from
7915 an area of memory. Also modified the PKCS#7 routines to use read only
7919 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7920 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7921 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7922 but a retry condition occured while trying to read the rest.
7925 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7926 NID_pkcs7_encrypted by default: this was wrong since this should almost
7927 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7928 the encrypted data type: this is a more sensible place to put it and it
7929 allows the PKCS#12 code to be tidied up that duplicated this
7933 *) Changed obj_dat.pl script so it takes its input and output files on
7934 the command line. This should avoid shell escape redirection problems
7938 *) Initial support for certificate extension requests, these are included
7939 in things like Xenroll certificate requests. Included functions to allow
7940 extensions to be obtained and added.
7943 *) -crlf option to s_client and s_server for sending newlines as
7944 CRLF (as required by many protocols).
7947 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7949 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7950 [Ralf S. Engelschall]
7952 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7953 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7955 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7959 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7960 DH parameters/keys (q is lost during that conversion, but the resulting
7961 DH parameters contain its length).
7963 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7964 much faster than DH_generate_parameters (which creates parameters
7965 where p = 2*q + 1), and also the smaller q makes DH computations
7966 much more efficient (160-bit exponentiation instead of 1024-bit
7967 exponentiation); so this provides a convenient way to support DHE
7968 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7969 utter importance to use
7970 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7972 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7973 when such DH parameters are used, because otherwise small subgroup
7974 attacks may become possible!
7977 *) Avoid memory leak in i2d_DHparams.
7980 *) Allow the -k option to be used more than once in the enc program:
7981 this allows the same encrypted message to be read by multiple recipients.
7984 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7985 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7986 it will always use the numerical form of the OID, even if it has a short
7990 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7991 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7992 otherwise bn_mod_exp was called. In the case of hardware keys for example
7993 no private key components need be present and it might store extra data
7994 in the RSA structure, which cannot be accessed from bn_mod_exp.
7995 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7996 private key operations.
7999 *) Added support for SPARC Linux.
8002 *) pem_password_cb function type incompatibly changed from
8003 typedef int pem_password_cb(char *buf, int size, int rwflag);
8005 ....(char *buf, int size, int rwflag, void *userdata);
8006 so that applications can pass data to their callbacks:
8007 The PEM[_ASN1]_{read,write}... functions and macros now take an
8008 additional void * argument, which is just handed through whenever
8009 the password callback is called.
8010 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8012 New function SSL_CTX_set_default_passwd_cb_userdata.
8014 Compatibility note: As many C implementations push function arguments
8015 onto the stack in reverse order, the new library version is likely to
8016 interoperate with programs that have been compiled with the old
8017 pem_password_cb definition (PEM_whatever takes some data that
8018 happens to be on the stack as its last argument, and the callback
8019 just ignores this garbage); but there is no guarantee whatsoever that
8022 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8023 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8024 problems not only on Windows, but also on some Unix platforms.
8025 To avoid problematic command lines, these definitions are now in an
8026 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8027 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8030 *) MIPS III/IV assembler module is reimplemented.
8033 *) More DES library cleanups: remove references to srand/rand and
8034 delete an unused file.
8037 *) Add support for the the free Netwide assembler (NASM) under Win32,
8038 since not many people have MASM (ml) and it can be hard to obtain.
8039 This is currently experimental but it seems to work OK and pass all
8040 the tests. Check out INSTALL.W32 for info.
8043 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8044 without temporary keys kept an extra copy of the server key,
8045 and connections with temporary keys did not free everything in case
8049 *) New function RSA_check_key and new openssl rsa option -check
8050 for verifying the consistency of RSA keys.
8051 [Ulf Moeller, Bodo Moeller]
8053 *) Various changes to make Win32 compile work:
8054 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8055 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8056 comparison" warnings.
8057 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8060 *) Add a debugging option to PKCS#5 v2 key generation function: when
8061 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8062 derived keys are printed to stderr.
8065 *) Copy the flags in ASN1_STRING_dup().
8066 [Roman E. Pavlov <pre@mo.msk.ru>]
8068 *) The x509 application mishandled signing requests containing DSA
8069 keys when the signing key was also DSA and the parameters didn't match.
8071 It was supposed to omit the parameters when they matched the signing key:
8072 the verifying software was then supposed to automatically use the CA's
8073 parameters if they were absent from the end user certificate.
8075 Omitting parameters is no longer recommended. The test was also
8076 the wrong way round! This was probably due to unusual behaviour in
8077 EVP_cmp_parameters() which returns 1 if the parameters match.
8078 This meant that parameters were omitted when they *didn't* match and
8079 the certificate was useless. Certificates signed with 'ca' didn't have
8081 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8083 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8084 The interface is as follows:
8085 Applications can use
8086 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8087 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8088 "off" is now the default.
8089 The library internally uses
8090 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8091 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8092 to disable memory-checking temporarily.
8094 Some inconsistent states that previously were possible (and were
8095 even the default) are now avoided.
8097 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8098 with each memory chunk allocated; this is occasionally more helpful
8099 than just having a counter.
8101 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8103 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8107 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8108 which largely parallels "options", but is for changing API behaviour,
8109 whereas "options" are about protocol behaviour.
8110 Initial "mode" flags are:
8112 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8113 a single record has been written.
8114 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8115 retries use the same buffer location.
8116 (But all of the contents must be
8120 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8123 *) Fix problems with no-hmac etc.
8124 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8126 *) New functions RSA_get_default_method(), RSA_set_method() and
8127 RSA_get_method(). These allows replacement of RSA_METHODs without having
8128 to mess around with the internals of an RSA structure.
8131 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8132 Also really enable memory leak checks in openssl.c and in some
8134 [Chad C. Mulligan, Bodo Moeller]
8136 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8137 up the length of negative integers. This has now been simplified to just
8138 store the length when it is first determined and use it later, rather
8139 than trying to keep track of where data is copied and updating it to
8141 [Steve Henson, reported by Brien Wheeler
8142 <bwheeler@authentica-security.com>]
8144 *) Add a new function PKCS7_signatureVerify. This allows the verification
8145 of a PKCS#7 signature but with the signing certificate passed to the
8146 function itself. This contrasts with PKCS7_dataVerify which assumes the
8147 certificate is present in the PKCS#7 structure. This isn't always the
8148 case: certificates can be omitted from a PKCS#7 structure and be
8149 distributed by "out of band" means (such as a certificate database).
8152 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8153 function prototypes in pem.h, also change util/mkdef.pl to add the
8154 necessary function names.
8157 *) mk1mf.pl (used by Windows builds) did not properly read the
8158 options set by Configure in the top level Makefile, and Configure
8159 was not even able to write more than one option correctly.
8160 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8163 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8164 file to be loaded from a BIO or FILE pointer. The BIO version will
8165 for example allow memory BIOs to contain config info.
8168 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8169 Whoever hopes to achieve shared-library compatibility across versions
8170 must use this, not the compile-time macro.
8171 (Exercise 0.9.4: Which is the minimum library version required by
8173 Note: All this applies only to multi-threaded programs, others don't
8177 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8178 through a BIO pair triggered the default case, i.e.
8179 SSLerr(...,SSL_R_UNKNOWN_STATE).
8182 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8183 can use the SSL library even if none of the specific BIOs is
8187 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8188 for the encoded length.
8189 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8191 *) Add initial documentation of the X509V3 functions.
8194 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8195 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8196 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8197 secure PKCS#8 private key format with a high iteration count.
8200 *) Fix determination of Perl interpreter: A perl or perl5
8201 _directory_ in $PATH was also accepted as the interpreter.
8202 [Ralf S. Engelschall]
8204 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8205 wrong with it but it was very old and did things like calling
8206 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8210 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8211 to use the new extension code.
8214 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8215 with macros. This should make it easier to change their form, add extra
8216 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8220 *) Add to configuration table a new entry that can specify an alternative
8221 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8222 according to Mark Crispin <MRC@Panda.COM>.
8226 *) DES CBC did not update the IV. Weird.
8229 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8230 Changing the behaviour of the former might break existing programs --
8231 where IV updating is needed, des_ncbc_encrypt can be used.
8234 *) When bntest is run from "make test" it drives bc to check its
8235 calculations, as well as internally checking them. If an internal check
8236 fails, it needs to cause bc to give a non-zero result or make test carries
8237 on without noticing the failure. Fixed.
8240 *) DES library cleanups.
8243 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8244 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8245 ciphers. NOTE: although the key derivation function has been verified
8246 against some published test vectors it has not been extensively tested
8247 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8251 *) Instead of "mkdir -p", which is not fully portable, use new
8252 Perl script "util/mkdir-p.pl".
8255 *) Rewrite the way password based encryption (PBE) is handled. It used to
8256 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8257 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8258 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8259 the 'parameter' field of the AlgorithmIdentifier is passed to the
8260 underlying key generation function so it must do its own ASN1 parsing.
8261 This has also changed the EVP_PBE_CipherInit() function which now has a
8262 'parameter' argument instead of literal salt and iteration count values
8263 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8266 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8267 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8268 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8269 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8270 value was just used as a "magic string" and not used directly its
8271 value doesn't matter.
8274 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8278 *) "linux-sparc64" configuration (ultrapenguin).
8279 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8280 "linux-sparc" configuration.
8281 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8283 *) config now generates no-xxx options for missing ciphers.
8286 *) Support the EBCDIC character set (work in progress).
8287 File ebcdic.c not yet included because it has a different license.
8288 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8290 *) Support BS2000/OSD-POSIX.
8291 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8293 *) Make callbacks for key generation use void * instead of char *.
8296 *) Make S/MIME samples compile (not yet tested).
8299 *) Additional typesafe stacks.
8302 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8306 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8308 *) New configuration variant "sco5-gcc".
8310 *) Updated some demos.
8311 [Sean O Riordain, Wade Scholine]
8313 *) Add missing BIO_free at exit of pkcs12 application.
8316 *) Fix memory leak in conf.c.
8319 *) Updates for Win32 to assembler version of MD5.
8322 *) Set #! path to perl in apps/der_chop to where we found it
8323 instead of using a fixed path.
8326 *) SHA library changes for irix64-mips4-cc.
8329 *) Improvements for VMS support.
8333 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8335 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8336 This also avoids the problems with SC4.2 and unpatched SC5.
8337 [Andy Polyakov <appro@fy.chalmers.se>]
8339 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8340 These are required because of the typesafe stack would otherwise break
8341 existing code. If old code used a structure member which used to be STACK
8342 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8343 sk_num or sk_value it would produce an error because the num, data members
8344 are not present in STACK_OF. Now it just produces a warning. sk_set
8345 replaces the old method of assigning a value to sk_value
8346 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8347 that does this will no longer work (and should use sk_set instead) but
8348 this could be regarded as a "questionable" behaviour anyway.
8351 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8352 correctly handle encrypted S/MIME data.
8355 *) Change type of various DES function arguments from des_cblock
8356 (which means, in function argument declarations, pointer to char)
8357 to des_cblock * (meaning pointer to array with 8 char elements),
8358 which allows the compiler to do more typechecking; it was like
8359 that back in SSLeay, but with lots of ugly casts.
8361 Introduce new type const_des_cblock.
8364 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8365 problems: find RecipientInfo structure that matches recipient certificate
8366 and initialise the ASN1 structures properly based on passed cipher.
8369 *) Belatedly make the BN tests actually check the results.
8372 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8373 to and from BNs: it was completely broken. New compilation option
8374 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8375 key elements as negative integers.
8378 *) Reorganize and speed up MD5.
8379 [Andy Polyakov <appro@fy.chalmers.se>]
8382 [Richard Levitte <richard@levitte.org>]
8384 *) New option -out to asn1parse to allow the parsed structure to be
8385 output to a file. This is most useful when combined with the -strparse
8386 option to examine the output of things like OCTET STRINGS.
8389 *) Make SSL library a little more fool-proof by not requiring any longer
8390 that SSL_set_{accept,connect}_state be called before
8391 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8392 in many applications because usually everything *appeared* to work as
8393 intended anyway -- now it really works as intended).
8396 *) Move openssl.cnf out of lib/.
8399 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8400 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8401 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8402 [Ralf S. Engelschall]
8404 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8405 handle PKCS#7 enveloped data properly.
8406 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8408 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8409 copying pointers. The cert_st handling is changed by this in
8410 various ways (and thus what used to be known as ctx->default_cert
8411 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8412 any longer when s->cert does not give us what we need).
8413 ssl_cert_instantiate becomes obsolete by this change.
8414 As soon as we've got the new code right (possibly it already is?),
8415 we have solved a couple of bugs of the earlier code where s->cert
8416 was used as if it could not have been shared with other SSL structures.
8418 Note that using the SSL API in certain dirty ways now will result
8419 in different behaviour than observed with earlier library versions:
8420 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8421 does not influence s as it used to.
8423 In order to clean up things more thoroughly, inside SSL_SESSION
8424 we don't use CERT any longer, but a new structure SESS_CERT
8425 that holds per-session data (if available); currently, this is
8426 the peer's certificate chain and, for clients, the server's certificate
8427 and temporary key. CERT holds only those values that can have
8428 meaningful defaults in an SSL_CTX.
8431 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8432 from the internal representation. Various PKCS#7 fixes: remove some
8433 evil casts and set the enc_dig_alg field properly based on the signing
8437 *) Allow PKCS#12 password to be set from the command line or the
8438 environment. Let 'ca' get its config file name from the environment
8439 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8443 *) Allow certificate policies extension to use an IA5STRING for the
8444 organization field. This is contrary to the PKIX definition but
8445 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8449 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8450 without disallowing inline assembler and the like for non-pedantic builds.
8453 *) Support Borland C++ builder.
8454 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8459 *) SHA-1 cleanups and performance enhancements.
8460 [Andy Polyakov <appro@fy.chalmers.se>]
8462 *) Sparc v8plus assembler for the bignum library.
8463 [Andy Polyakov <appro@fy.chalmers.se>]
8465 *) Accept any -xxx and +xxx compiler options in Configure.
8468 *) Update HPUX configuration.
8471 *) Add missing sk_<type>_unshift() function to safestack.h
8472 [Ralf S. Engelschall]
8474 *) New function SSL_CTX_use_certificate_chain_file that sets the
8475 "extra_cert"s in addition to the certificate. (This makes sense
8476 only for "PEM" format files, as chains as a whole are not
8480 *) Support verify_depth from the SSL API.
8481 x509_vfy.c had what can be considered an off-by-one-error:
8482 Its depth (which was not part of the external interface)
8483 was actually counting the number of certificates in a chain;
8484 now it really counts the depth.
8487 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8488 instead of X509err, which often resulted in confusing error
8489 messages since the error codes are not globally unique
8490 (e.g. an alleged error in ssl3_accept when a certificate
8491 didn't match the private key).
8493 *) New function SSL_CTX_set_session_id_context that allows to set a default
8494 value (so that you don't need SSL_set_session_id_context for each
8495 connection using the SSL_CTX).
8498 *) OAEP decoding bug fix.
8501 *) Support INSTALL_PREFIX for package builders, as proposed by
8505 *) New Configure options "threads" and "no-threads". For systems
8506 where the proper compiler options are known (currently Solaris
8507 and Linux), "threads" is the default.
8510 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8513 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8514 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8515 such as /usr/local/bin.
8518 *) "make linux-shared" to build shared libraries.
8519 [Niels Poppe <niels@netbox.org>]
8521 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8524 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8525 extension adding in x509 utility.
8528 *) Remove NOPROTO sections and error code comments.
8531 *) Partial rewrite of the DEF file generator to now parse the ANSI
8535 *) New Configure options --prefix=DIR and --openssldir=DIR.
8538 *) Complete rewrite of the error code script(s). It is all now handled
8539 by one script at the top level which handles error code gathering,
8540 header rewriting and C source file generation. It should be much better
8541 than the old method: it now uses a modified version of Ulf's parser to
8542 read the ANSI prototypes in all header files (thus the old K&R definitions
8543 aren't needed for error creation any more) and do a better job of
8544 translating function codes into names. The old 'ASN1 error code imbedded
8545 in a comment' is no longer necessary and it doesn't use .err files which
8546 have now been deleted. Also the error code call doesn't have to appear all
8547 on one line (which resulted in some large lines...).
8550 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8553 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8554 0 (which usually indicates a closed connection), but continue reading.
8557 *) Fix some race conditions.
8560 *) Add support for CRL distribution points extension. Add Certificate
8561 Policies and CRL distribution points documentation.
8564 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8567 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8568 8 of keying material. Merlin has also confirmed interop with this fix
8569 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8570 [Merlin Hughes <merlin@baltimore.ie>]
8572 *) Fix lots of warnings.
8573 [Richard Levitte <levitte@stacken.kth.se>]
8575 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8576 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8577 [Richard Levitte <levitte@stacken.kth.se>]
8579 *) Fix problems with sizeof(long) == 8.
8580 [Andy Polyakov <appro@fy.chalmers.se>]
8582 *) Change functions to ANSI C.
8585 *) Fix typos in error codes.
8586 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8588 *) Remove defunct assembler files from Configure.
8591 *) SPARC v8 assembler BIGNUM implementation.
8592 [Andy Polyakov <appro@fy.chalmers.se>]
8594 *) Support for Certificate Policies extension: both print and set.
8595 Various additions to support the r2i method this uses.
8598 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8599 return a const string when you are expecting an allocated buffer.
8602 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8603 types DirectoryString and DisplayText.
8606 *) Add code to allow r2i extensions to access the configuration database,
8607 add an LHASH database driver and add several ctx helper functions.
8610 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8611 fail when they extended the size of a BIGNUM.
8614 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8615 support typesafe stack.
8618 *) Fix typo in SSL_[gs]et_options().
8619 [Nils Frostberg <nils@medcom.se>]
8621 *) Delete various functions and files that belonged to the (now obsolete)
8622 old X509V3 handling code.
8625 *) New Configure option "rsaref".
8628 *) Don't auto-generate pem.h.
8631 *) Introduce type-safe ASN.1 SETs.
8634 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8635 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8637 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8638 that links with OpenSSL (well at least cause lots of warnings), but fear
8639 not: the conversion is trivial, and it eliminates loads of evil casts. A
8640 few STACKed things have been converted already. Feel free to convert more.
8641 In the fullness of time, I'll do away with the STACK type altogether.
8644 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8645 specified in <certfile> by updating the entry in the index.txt file.
8646 This way one no longer has to edit the index.txt file manually for
8647 revoking a certificate. The -revoke option does the gory details now.
8648 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8650 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8651 `-text' option at all and this way the `-noout -text' combination was
8652 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8653 [Ralf S. Engelschall]
8655 *) Make sure a corresponding plain text error message exists for the
8656 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8657 verify callback function determined that a certificate was revoked.
8658 [Ralf S. Engelschall]
8660 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8661 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8662 all available cipers including rc5, which was forgotten until now.
8663 In order to let the testing shell script know which algorithms
8664 are available, a new (up to now undocumented) command
8665 "openssl list-cipher-commands" is used.
8668 *) Bugfix: s_client occasionally would sleep in select() when
8669 it should have checked SSL_pending() first.
8672 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8673 the raw DSA values prior to ASN.1 encoding.
8676 *) Tweaks to Configure
8677 [Niels Poppe <niels@netbox.org>]
8679 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8683 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8686 *) New config option to avoid instructions that are illegal on the 80386.
8687 The default code is faster, but requires at least a 486.
8690 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8691 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8692 same as SSL2_VERSION anyway.
8695 *) New "-showcerts" option for s_client.
8698 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8699 application. Various cleanups and fixes.
8702 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8703 modify error routines to work internally. Add error codes and PBE init
8704 to library startup routines.
8707 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8708 packing functions to asn1 and evp. Changed function names and error
8709 codes along the way.
8712 *) PKCS12 integration: and so it begins... First of several patches to
8713 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8714 objects to objects.h
8717 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8718 and display support for Thawte strong extranet extension.
8721 *) Add LinuxPPC support.
8722 [Jeff Dubrule <igor@pobox.org>]
8724 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8725 bn_div_words in alpha.s.
8726 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8728 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8729 OAEP isn't supported when OpenSSL is built with RSAref.
8730 [Ulf Moeller <ulf@fitug.de>]
8732 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8733 so they no longer are missing under -DNOPROTO.
8734 [Soren S. Jorvang <soren@t.dk>]
8737 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8739 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8740 doesn't work when the session is reused. Coming soon!
8743 *) Fix a security hole, that allows sessions to be reused in the wrong
8744 context thus bypassing client cert protection! All software that uses
8745 client certs and session caches in multiple contexts NEEDS PATCHING to
8746 allow session reuse! A fuller solution is in the works.
8747 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8749 *) Some more source tree cleanups (removed obsolete files
8750 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8751 permission on "config" script to be executable) and a fix for the INSTALL
8753 [Ulf Moeller <ulf@fitug.de>]
8755 *) Remove some legacy and erroneous uses of malloc, free instead of
8757 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8759 *) Make rsa_oaep_test return non-zero on error.
8760 [Ulf Moeller <ulf@fitug.de>]
8762 *) Add support for native Solaris shared libraries. Configure
8763 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8764 if someone would make that last step automatic.
8765 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8767 *) ctx_size was not built with the right compiler during "make links". Fixed.
8770 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8771 except NULL ciphers". This means the default cipher list will no longer
8772 enable NULL ciphers. They need to be specifically enabled e.g. with
8773 the string "DEFAULT:eNULL".
8776 *) Fix to RSA private encryption routines: if p < q then it would
8777 occasionally produce an invalid result. This will only happen with
8778 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8781 *) Be less restrictive and allow also `perl util/perlpath.pl
8782 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8783 because this way one can also use an interpreter named `perl5' (which is
8784 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8785 installed as `perl').
8786 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8788 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8789 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8791 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8792 advapi32.lib to Win32 build and change the pem test comparision
8793 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8794 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8795 and crypto/des/ede_cbcm_enc.c.
8798 *) DES quad checksum was broken on big-endian architectures. Fixed.
8801 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8802 Win32 test batch file so it (might) work again. The Win32 test batch file
8803 is horrible: I feel ill....
8806 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8807 in e_os.h. Audit of header files to check ANSI and non ANSI
8808 sections: 10 functions were absent from non ANSI section and not exported
8809 from Windows DLLs. Fixed up libeay.num for new functions.
8812 *) Make `openssl version' output lines consistent.
8813 [Ralf S. Engelschall]
8815 *) Fix Win32 symbol export lists for BIO functions: Added
8816 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8817 to ms/libeay{16,32}.def.
8818 [Ralf S. Engelschall]
8820 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8821 fine under Unix and passes some trivial tests I've now added. But the
8822 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8823 added to make sure no one expects that this stuff really works in the
8824 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8825 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8827 [Ralf S. Engelschall]
8829 *) Fix the generation of two part addresses in perl.
8830 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8832 *) Add config entry for Linux on MIPS.
8833 [John Tobey <jtobey@channel1.com>]
8835 *) Make links whenever Configure is run, unless we are on Windoze.
8838 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8839 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8843 *) Add a useful kludge to allow package maintainers to specify compiler and
8844 other platforms details on the command line without having to patch the
8845 Configure script everytime: One now can use ``perl Configure
8846 <id>:<details>'', i.e. platform ids are allowed to have details appended
8847 to them (seperated by colons). This is treated as there would be a static
8848 pre-configured entry in Configure's %table under key <id> with value
8849 <details> and ``perl Configure <id>'' is called. So, when you want to
8850 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8851 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8852 now, which overrides the FreeBSD-elf entry on-the-fly.
8853 [Ralf S. Engelschall]
8855 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8858 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8859 on the `perl Configure ...' command line. This way one can compile
8860 OpenSSL libraries with Position Independent Code (PIC) which is needed
8861 for linking it into DSOs.
8862 [Ralf S. Engelschall]
8864 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8868 *) Cleaned up the LICENSE document: The official contact for any license
8869 questions now is the OpenSSL core team under openssl-core@openssl.org.
8870 And add a paragraph about the dual-license situation to make sure people
8871 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8872 to the OpenSSL toolkit.
8873 [Ralf S. Engelschall]
8875 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8876 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8877 Additonally cleaned up the `make links' target: Remove unnecessary
8878 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8879 to speed processing and no longer clutter the display with confusing
8880 stuff. Instead only the actually done links are displayed.
8881 [Ralf S. Engelschall]
8883 *) Permit null encryption ciphersuites, used for authentication only. It used
8884 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8885 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8889 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8890 signed attributes when verifying signatures (this would break them),
8891 the detached data encoding was wrong and public keys obtained using
8892 X509_get_pubkey() weren't freed.
8895 *) Add text documentation for the BUFFER functions. Also added a work around
8896 to a Win95 console bug. This was triggered by the password read stuff: the
8897 last character typed gets carried over to the next fread(). If you were
8898 generating a new cert request using 'req' for example then the last
8899 character of the passphrase would be CR which would then enter the first
8903 *) Added the new `Includes OpenSSL Cryptography Software' button as
8904 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8905 button and can be used by applications based on OpenSSL to show the
8906 relationship to the OpenSSL project.
8907 [Ralf S. Engelschall]
8909 *) Remove confusing variables in function signatures in files
8910 ssl/ssl_lib.c and ssl/ssl.h.
8911 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8913 *) Don't install bss_file.c under PREFIX/include/
8914 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8916 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8917 functions that return function pointers and has support for NT specific
8918 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8919 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8920 unsigned to signed types: this was killing the Win32 compile.
8923 *) Add new certificate file to stack functions,
8924 SSL_add_dir_cert_subjects_to_stack() and
8925 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8926 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8927 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8928 This means that Apache-SSL and similar packages don't have to mess around
8929 to add as many CAs as they want to the preferred list.
8932 *) Experiment with doxygen documentation. Currently only partially applied to
8934 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8935 openssl.doxy as the configuration file.
8938 *) Get rid of remaining C++-style comments which strict C compilers hate.
8939 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8941 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8942 compiled in by default: it has problems with large keys.
8945 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8946 DH private keys and/or callback functions which directly correspond to
8947 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8948 is needed for applications which have to configure certificates on a
8949 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8951 For the RSA certificate situation is makes no difference, but
8952 for the DSA certificate situation this fixes the "no shared cipher"
8953 problem where the OpenSSL cipher selection procedure failed because the
8954 temporary keys were not overtaken from the context and the API provided
8955 no way to reconfigure them.
8956 The new functions now let applications reconfigure the stuff and they
8957 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8958 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8959 non-public-API function ssl_cert_instantiate() is used as a helper
8960 function and also to reduce code redundancy inside ssl_rsa.c.
8961 [Ralf S. Engelschall]
8963 *) Move s_server -dcert and -dkey options out of the undocumented feature
8964 area because they are useful for the DSA situation and should be
8965 recognized by the users.
8966 [Ralf S. Engelschall]
8968 *) Fix the cipher decision scheme for export ciphers: the export bits are
8969 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8970 SSL_EXP_MASK. So, the original variable has to be used instead of the
8971 already masked variable.
8972 [Richard Levitte <levitte@stacken.kth.se>]
8974 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8975 [Richard Levitte <levitte@stacken.kth.se>]
8977 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8978 from `int' to `unsigned int' because it's a length and initialized by
8979 EVP_DigestFinal() which expects an `unsigned int *'.
8980 [Richard Levitte <levitte@stacken.kth.se>]
8982 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8983 script. Instead use the usual Shell->Perl transition trick.
8984 [Ralf S. Engelschall]
8986 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8987 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8988 -noout -modulus' as it's already the case for `openssl rsa -noout
8989 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8990 currently the public key is printed (a decision which was already done by
8991 `openssl dsa -modulus' in the past) which serves a similar purpose.
8992 Additionally the NO_RSA no longer completely removes the whole -modulus
8993 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8995 [Ralf S. Engelschall]
8997 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8998 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8999 [Arne Ansper <arne@ats.cyber.ee>]
9001 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9002 to be added. Now both 'req' and 'ca' can use new objects defined in the
9006 *) Add cool BIO that does syslog (or event log on NT).
9007 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9009 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9010 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9011 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9012 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9015 *) Add preliminary config info for new extension code.
9018 *) Make RSA_NO_PADDING really use no padding.
9019 [Ulf Moeller <ulf@fitug.de>]
9021 *) Generate errors when private/public key check is done.
9024 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9025 for some CRL extensions and new objects added.
9028 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9029 key usage extension and fuller support for authority key id.
9032 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9033 padding method for RSA, which is recommended for new applications in PKCS
9034 #1 v2.0 (RFC 2437, October 1998).
9035 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9036 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9037 against Bleichbacher's attack on RSA.
9038 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9041 *) Updates to the new SSL compression code
9042 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9044 *) Fix so that the version number in the master secret, when passed
9045 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9046 (because the server will not accept higher), that the version number
9047 is 0x03,0x01, not 0x03,0x00
9048 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9050 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9051 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9052 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9055 *) Support for RAW extensions where an arbitrary extension can be
9056 created by including its DER encoding. See apps/openssl.cnf for
9060 *) Make sure latest Perl versions don't interpret some generated C array
9061 code as Perl array code in the crypto/err/err_genc.pl script.
9062 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9064 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9065 not many people have the assembler. Various Win32 compilation fixes and
9066 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9070 *) Modify configure script 'Configure' to automatically create crypto/date.h
9071 file under Win32 and also build pem.h from pem.org. New script
9072 util/mkfiles.pl to create the MINFO file on environments that can't do a
9073 'make files': perl util/mkfiles.pl >MINFO should work.
9076 *) Major rework of DES function declarations, in the pursuit of correctness
9077 and purity. As a result, many evil casts evaporated, and some weirdness,
9078 too. You may find this causes warnings in your code. Zapping your evil
9079 casts will probably fix them. Mostly.
9082 *) Fix for a typo in asn1.h. Bug fix to object creation script
9083 obj_dat.pl. It considered a zero in an object definition to mean
9084 "end of object": none of the objects in objects.h have any zeros
9085 so it wasn't spotted.
9086 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9088 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9089 Masking (CBCM). In the absence of test vectors, the best I have been able
9090 to do is check that the decrypt undoes the encrypt, so far. Send me test
9091 vectors if you have them.
9094 *) Correct calculation of key length for export ciphers (too much space was
9095 allocated for null ciphers). This has not been tested!
9098 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9099 message is now correct (it understands "crypto" and "ssl" on its
9100 command line). There is also now an "update" option. This will update
9101 the util/ssleay.num and util/libeay.num files with any new functions.
9103 perl util/mkdef.pl crypto ssl update
9104 it will update them.
9107 *) Overhauled the Perl interface (perl/*):
9108 - ported BN stuff to OpenSSL's different BN library
9109 - made the perl/ source tree CVS-aware
9110 - renamed the package from SSLeay to OpenSSL (the files still contain
9111 their history because I've copied them in the repository)
9112 - removed obsolete files (the test scripts will be replaced
9113 by better Test::Harness variants in the future)
9114 [Ralf S. Engelschall]
9116 *) First cut for a very conservative source tree cleanup:
9117 1. merge various obsolete readme texts into doc/ssleay.txt
9118 where we collect the old documents and readme texts.
9119 2. remove the first part of files where I'm already sure that we no
9120 longer need them because of three reasons: either they are just temporary
9121 files which were left by Eric or they are preserved original files where
9122 I've verified that the diff is also available in the CVS via "cvs diff
9123 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9124 the crypto/md/ stuff).
9125 [Ralf S. Engelschall]
9127 *) More extension code. Incomplete support for subject and issuer alt
9128 name, issuer and authority key id. Change the i2v function parameters
9129 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9130 what that's for :-) Fix to ASN1 macro which messed up
9131 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9134 *) Preliminary support for ENUMERATED type. This is largely copied from the
9138 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9139 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9141 *) Make sure `make rehash' target really finds the `openssl' program.
9142 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9144 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9145 like to hear about it if this slows down other processors.
9148 *) Add CygWin32 platform information to Configure script.
9149 [Alan Batie <batie@aahz.jf.intel.com>]
9151 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9152 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9154 *) New program nseq to manipulate netscape certificate sequences
9157 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9161 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9162 but the BN code had some problems that would cause failures when
9163 doing certificate verification and some other functions.
9164 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9166 *) Add ASN1 and PEM code to support netscape certificate sequences.
9169 *) Add ASN1 and PEM code to support netscape certificate sequences.
9172 *) Add several PKIX and private extended key usage OIDs.
9175 *) Modify the 'ca' program to handle the new extension code. Modify
9176 openssl.cnf for new extension format, add comments.
9179 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9180 and add a sample to openssl.cnf so req -x509 now adds appropriate
9184 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9185 error code, add initial support to X509_print() and x509 application.
9188 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9189 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9190 stuff is currently isolated and isn't even compiled yet.
9193 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9194 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9195 Removed the versions check from X509 routines when loading extensions:
9196 this allows certain broken certificates that don't set the version
9197 properly to be processed.
9200 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9201 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9202 can still be regenerated with "make depend".
9205 *) Spelling mistake in C version of CAST-128.
9206 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9208 *) Changes to the error generation code. The perl script err-code.pl
9209 now reads in the old error codes and retains the old numbers, only
9210 adding new ones if necessary. It also only changes the .err files if new
9211 codes are added. The makefiles have been modified to only insert errors
9212 when needed (to avoid needlessly modifying header files). This is done
9213 by only inserting errors if the .err file is newer than the auto generated
9214 C file. To rebuild all the error codes from scratch (the old behaviour)
9215 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9216 or delete all the .err files.
9219 *) CAST-128 was incorrectly implemented for short keys. The C version has
9220 been fixed, but is untested. The assembler versions are also fixed, but
9221 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9222 to regenerate it if needed.
9223 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9224 Hagino <itojun@kame.net>]
9226 *) File was opened incorrectly in randfile.c.
9227 [Ulf Möller <ulf@fitug.de>]
9229 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9230 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9231 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9232 al: it's just almost always a UTCTime. Note this patch adds new error
9233 codes so do a "make errors" if there are problems.
9236 *) Correct Linux 1 recognition in config.
9237 [Ulf Möller <ulf@fitug.de>]
9239 *) Remove pointless MD5 hash when using DSA keys in ca.
9240 [Anonymous <nobody@replay.com>]
9242 *) Generate an error if given an empty string as a cert directory. Also
9243 generate an error if handed NULL (previously returned 0 to indicate an
9244 error, but didn't set one).
9245 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9247 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9250 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9251 parameters. This was causing a warning which killed off the Win32 compile.
9254 *) Remove C++ style comments from crypto/bn/bn_local.h.
9255 [Neil Costigan <neil.costigan@celocom.com>]
9257 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9258 based on a text string, looking up short and long names and finally
9259 "dot" format. The "dot" format stuff didn't work. Added new function
9260 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9261 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9262 OID is not part of the table.
9265 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9266 X509_LOOKUP_by_alias().
9269 *) Sort openssl functions by name.
9272 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9273 encryption from sample DSA keys (in case anyone is interested the password
9277 *) Make _all_ *_free functions accept a NULL pointer.
9278 [Frans Heymans <fheymans@isaserver.be>]
9280 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9282 [Anonymous <nobody@replay.com>]
9284 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9285 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9287 *) Don't blow it for numeric -newkey arguments to apps/req.
9288 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9290 *) Temp key "for export" tests were wrong in s3_srvr.c.
9291 [Anonymous <nobody@replay.com>]
9293 *) Add prototype for temp key callback functions
9294 SSL_CTX_set_tmp_{rsa,dh}_callback().
9297 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9298 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9301 *) X509_name_add_entry() freed the wrong thing after an error.
9302 [Arne Ansper <arne@ats.cyber.ee>]
9304 *) rsa_eay.c would attempt to free a NULL context.
9305 [Arne Ansper <arne@ats.cyber.ee>]
9307 *) BIO_s_socket() had a broken should_retry() on Windoze.
9308 [Arne Ansper <arne@ats.cyber.ee>]
9310 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9311 [Arne Ansper <arne@ats.cyber.ee>]
9313 *) Make sure the already existing X509_STORE->depth variable is initialized
9314 in X509_STORE_new(), but document the fact that this variable is still
9315 unused in the certificate verification process.
9316 [Ralf S. Engelschall]
9318 *) Fix the various library and apps files to free up pkeys obtained from
9319 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9322 *) Fix reference counting in X509_PUBKEY_get(). This makes
9323 demos/maurice/example2.c work, amongst others, probably.
9324 [Steve Henson and Ben Laurie]
9326 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9327 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9328 are no longer created. This way we have a single and consistent command
9329 line interface `openssl <command>', similar to `cvs <command>'.
9330 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9332 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9333 BIT STRING wrapper always have zero unused bits.
9336 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9339 *) Make the top-level INSTALL documentation easier to understand.
9342 *) Makefiles updated to exit if an error occurs in a sub-directory
9343 make (including if user presses ^C) [Paul Sutton]
9345 *) Make Montgomery context stuff explicit in RSA data structure.
9348 *) Fix build order of pem and err to allow for generated pem.h.
9351 *) Fix renumbering bug in X509_NAME_delete_entry().
9354 *) Enhanced the err-ins.pl script so it makes the error library number
9355 global and can add a library name. This is needed for external ASN1 and
9356 other error libraries.
9359 *) Fixed sk_insert which never worked properly.
9362 *) Fix ASN1 macros so they can handle indefinite length construted
9363 EXPLICIT tags. Some non standard certificates use these: they can now
9367 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9368 into a single doc/ssleay.txt bundle. This way the information is still
9369 preserved but no longer messes up this directory. Now it's new room for
9370 the new set of documenation files.
9371 [Ralf S. Engelschall]
9373 *) SETs were incorrectly DER encoded. This was a major pain, because they
9374 shared code with SEQUENCEs, which aren't coded the same. This means that
9375 almost everything to do with SETs or SEQUENCEs has either changed name or
9376 number of arguments.
9377 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9379 *) Fix test data to work with the above.
9382 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9383 was already fixed by Eric for 0.9.1 it seems.
9384 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9386 *) Autodetect FreeBSD3.
9389 *) Fix various bugs in Configure. This affects the following platforms:
9393 unixware-2.0-pentium
9397 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9398 before they are needed.
9401 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9405 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9407 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9408 changed SSLeay to OpenSSL in version strings.
9409 [Ralf S. Engelschall]
9411 *) Some fixups to the top-level documents.
9414 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9415 because the symlink to include/ was missing.
9416 [Ralf S. Engelschall]
9418 *) Incorporated the popular no-RSA/DSA-only patches
9419 which allow to compile a RSA-free SSLeay.
9420 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9422 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9423 when "ssleay" is still not found.
9424 [Ralf S. Engelschall]
9426 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9427 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9429 *) Updated the README file.
9430 [Ralf S. Engelschall]
9432 *) Added various .cvsignore files in the CVS repository subdirs
9433 to make a "cvs update" really silent.
9434 [Ralf S. Engelschall]
9436 *) Recompiled the error-definition header files and added
9437 missing symbols to the Win32 linker tables.
9438 [Ralf S. Engelschall]
9440 *) Cleaned up the top-level documents;
9441 o new files: CHANGES and LICENSE
9442 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9443 o merged COPYRIGHT into LICENSE
9444 o removed obsolete TODO file
9445 o renamed MICROSOFT to INSTALL.W32
9446 [Ralf S. Engelschall]
9448 *) Removed dummy files from the 0.9.1b source tree:
9449 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9450 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9451 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9452 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9453 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9454 [Ralf S. Engelschall]
9456 *) Added various platform portability fixes.
9459 *) The Genesis of the OpenSSL rpject:
9460 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9461 Young and Tim J. Hudson created while they were working for C2Net until
9463 [The OpenSSL Project]
9466 Changes between 0.9.0b and 0.9.1b [not released]
9468 *) Updated a few CA certificates under certs/
9471 *) Changed some BIGNUM api stuff.
9474 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9475 DGUX x86, Linux Alpha, etc.
9478 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9479 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9483 *) Add -strparse option to asn1pars program which parses nested
9485 [Dr Stephen Henson <shenson@bigfoot.com>]
9487 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9490 *) DSA fix for "ca" program.
9493 *) Added "-genkey" option to "dsaparam" program.
9496 *) Added RIPE MD160 (rmd160) message digest.
9499 *) Added -a (all) option to "ssleay version" command.
9502 *) Added PLATFORM define which is the id given to Configure.
9505 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9508 *) Extended the ASN.1 parser routines.
9511 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9514 *) Added a BN_CTX to the BN library.
9517 *) Fixed the weak key values in DES library
9520 *) Changed API in EVP library for cipher aliases.
9523 *) Added support for RC2/64bit cipher.
9526 *) Converted the lhash library to the crypto/mem.c functions.
9529 *) Added more recognized ASN.1 object ids.
9532 *) Added more RSA padding checks for SSL/TLS.
9535 *) Added BIO proxy/filter functionality.
9538 *) Added extra_certs to SSL_CTX which can be used
9539 send extra CA certificates to the client in the CA cert chain sending
9540 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9543 *) Now Fortezza is denied in the authentication phase because
9544 this is key exchange mechanism is not supported by SSLeay at all.
9547 *) Additional PKCS1 checks.
9550 *) Support the string "TLSv1" for all TLS v1 ciphers.
9553 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9554 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9557 *) Fixed a few memory leaks.
9560 *) Fixed various code and comment typos.
9563 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9564 bytes sent in the client random.
9565 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob