5 Changes between 1.0.0e and 1.0.1 [xx XXX xxxx]
7 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
8 As required by RFC5289 these ciphersuites cannot be used if for
9 versions of TLS earlier than 1.2.
12 *) For FIPS capable OpenSSL interpret a NULL default public key method
13 as unset and return the appopriate default but do *not* set the default.
14 This means we can return the appopriate method in applications that
15 swicth between FIPS and non-FIPS modes.
18 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
19 ENGINE is used then we cannot handle that in the FIPS module so we
20 keep original code iff non-FIPS operations are allowed.
23 *) Add -attime option to openssl verify.
24 [Peter Eckersley <pde@eff.org> and Ben Laurie]
26 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
29 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
30 FIPS EC methods unconditionally for now.
33 *) New build option no-ec2m to disable characteristic 2 code.
36 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
37 all cases can be covered as some introduce binary incompatibilities.
40 *) Redirect RSA operations to FIPS module including keygen,
41 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
44 *) Add similar low level API blocking to ciphers.
47 *) Low level digest APIs are not approved in FIPS mode: any attempt
48 to use these will cause a fatal error. Applications that *really* want
49 to use them can use the private_* version instead.
52 *) Redirect cipher operations to FIPS module for FIPS builds.
55 *) Redirect digest operations to FIPS module for FIPS builds.
58 *) Update build system to add "fips" flag which will link in fipscanister.o
59 for static and shared library builds embedding a signature if needed.
62 *) Output TLS supported curves in preference order instead of numerical
63 order. This is currently hardcoded for the highest order curves first.
64 This should be configurable so applications can judge speed vs strength.
67 *) Add TLS v1.2 server support for client authentication.
70 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
74 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
75 FIPS modules versions.
78 *) Add TLS v1.2 client side support for client authentication. Keep cache
79 of handshake records longer as we don't know the hash algorithm to use
80 until after the certificate request message is received.
83 *) Initial TLS v1.2 client support. Add a default signature algorithms
84 extension including all the algorithms we support. Parse new signature
85 format in client key exchange. Relax some ECC signing restrictions for
86 TLS v1.2 as indicated in RFC5246.
89 *) Add server support for TLS v1.2 signature algorithms extension. Switch
90 to new signature format when needed using client digest preference.
91 All server ciphersuites should now work correctly in TLS v1.2. No client
92 support yet and no support for client certificates.
95 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
96 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
97 ciphersuites. At present only RSA key exchange ciphersuites work with
98 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
99 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
100 and version checking.
103 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
104 with this defined it will not be affected by any changes to ssl internal
105 structures. Add several utility functions to allow openssl application
106 to work with OPENSSL_NO_SSL_INTERN defined.
110 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
112 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
115 *) Add EC_GFp_nistp224_method(), a 64-bit optimized implementation for
116 elliptic curve NIST-P224 with constant-time single point multiplication on
117 typical inputs. EC_GROUP_new_by_curve_name() will automatically use this
118 (while EC_GROUP_new_curve_GFp() currently won't and prefers the more
119 flexible implementations).
121 The implementation requires support for the nonstandard type __uint128_t,
122 and so is disabled by default. To include this in your build of OpenSSL,
123 use -DEC_NISTP224_64_GCC_128 on the Configure (or config) command line,
124 and run "make depend" (or "make update").
125 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
127 *) Permit abbreviated handshakes when renegotiating using the function
128 SSL_renegotiate_abbreviated().
129 [Robin Seggelmann <seggelmann@fh-muenster.de>]
131 *) Add call to ENGINE_register_all_complete() to
132 ENGINE_load_builtin_engines(), so some implementations get used
133 automatically instead of needing explicit application support.
136 *) Add support for TLS key exporter as described in RFC5705.
137 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
139 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
140 a few changes are required:
142 Add SSL_OP_NO_TLSv1_1 flag.
144 Update version checking logic to handle version 1.1.
145 Add explicit IV handling (ported from DTLS code).
146 Add command line options to s_client/s_server.
149 Changes between 1.0.0d and 1.0.0e [xx XXX xxxx]
151 *) Add protection against ECDSA timing attacks as mentioned in the paper
152 by Billy Bob Brumley and Nicola Tuveri, see:
154 http://eprint.iacr.org/2011/232.pdf
156 [Billy Bob Brumley and Nicola Tuveri]
158 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
160 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
161 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
163 *) Fix bug in string printing code: if *any* escaping is enabled we must
164 escape the escape character (backslash) or the resulting string is
168 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
170 *) Disable code workaround for ancient and obsolete Netscape browsers
171 and servers: an attacker can use it in a ciphersuite downgrade attack.
172 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
175 *) Fixed J-PAKE implementation error, originally discovered by
176 Sebastien Martini, further info and confirmation from Stefan
177 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
180 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
182 *) Fix extension code to avoid race conditions which can result in a buffer
183 overrun vulnerability: resumed sessions must not be modified as they can
184 be shared by multiple threads. CVE-2010-3864
187 *) Fix WIN32 build system to correctly link an ENGINE directory into
191 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
193 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
195 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
197 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
199 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
200 context. The operation can be customised via the ctrl mechanism in
201 case ENGINEs want to include additional functionality.
204 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
207 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
208 output hashes compatible with older versions of OpenSSL.
209 [Willy Weisz <weisz@vcpc.univie.ac.at>]
211 *) Fix compression algorithm handling: if resuming a session use the
212 compression algorithm of the resumed session instead of determining
213 it from client hello again. Don't allow server to change algorithm.
216 *) Add load_crls() function to apps tidying load_certs() too. Add option
217 to verify utility to allow additional CRLs to be included.
220 *) Update OCSP request code to permit adding custom headers to the request:
221 some responders need this.
224 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
226 [Julia Lawall <julia@diku.dk>]
228 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
229 needlessly dereferenced structures, used obsolete functions and
230 didn't handle all updated verify codes correctly.
233 *) Disable MD2 in the default configuration.
236 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
237 indicate the initial BIO being pushed or popped. This makes it possible
238 to determine whether the BIO is the one explicitly called or as a result
239 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
240 it handles reference counts correctly and doesn't zero out the I/O bio
241 when it is not being explicitly popped. WARNING: applications which
242 included workarounds for the old buggy behaviour will need to be modified
243 or they could free up already freed BIOs.
246 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
247 renaming to all platforms (within the 0.9.8 branch, this was
248 done conditionally on Netware platforms to avoid a name clash).
249 [Guenter <lists@gknw.net>]
251 *) Add ECDHE and PSK support to DTLS.
252 [Michael Tuexen <tuexen@fh-muenster.de>]
254 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
258 *) Add "missing" function EVP_MD_flags() (without this the only way to
259 retrieve a digest flags is by accessing the structure directly. Update
260 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
261 or cipher is registered as in the "from" argument. Print out all
262 registered digests in the dgst usage message instead of manually
263 attempting to work them out.
266 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
267 this allows the use of compression and extensions. Change default cipher
268 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
269 by default unless an application cipher string requests it.
272 *) Alter match criteria in PKCS12_parse(). It used to try to use local
273 key ids to find matching certificates and keys but some PKCS#12 files
274 don't follow the (somewhat unwritten) rules and this strategy fails.
275 Now just gather all certificates together and the first private key
276 then look for the first certificate that matches the key.
279 *) Support use of registered digest and cipher names for dgst and cipher
280 commands instead of having to add each one as a special case. So now
287 openssl dgst -sha256 foo
289 and this works for ENGINE based algorithms too.
293 *) Update Gost ENGINE to support parameter files.
294 [Victor B. Wagner <vitus@cryptocom.ru>]
296 *) Support GeneralizedTime in ca utility.
297 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
299 *) Enhance the hash format used for certificate directory links. The new
300 form uses the canonical encoding (meaning equivalent names will work
301 even if they aren't identical) and uses SHA1 instead of MD5. This form
302 is incompatible with the older format and as a result c_rehash should
303 be used to rebuild symbolic links.
306 *) Make PKCS#8 the default write format for private keys, replacing the
307 traditional format. This form is standardised, more secure and doesn't
308 include an implicit MD5 dependency.
311 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
312 committed to OpenSSL should pass this lot as a minimum.
315 *) Add session ticket override functionality for use by EAP-FAST.
316 [Jouni Malinen <j@w1.fi>]
318 *) Modify HMAC functions to return a value. Since these can be implemented
319 in an ENGINE errors can occur.
322 *) Type-checked OBJ_bsearch_ex.
325 *) Type-checked OBJ_bsearch. Also some constification necessitated
326 by type-checking. Still to come: TXT_DB, bsearch(?),
327 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
331 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
332 seconds to a tm structure directly, instead of going through OS
333 specific date routines. This avoids any issues with OS routines such
334 as the year 2038 bug. New *_adj() functions for ASN1 time structures
335 and X509_time_adj_ex() to cover the extended range. The existing
336 X509_time_adj() is still usable and will no longer have any date issues.
339 *) Delta CRL support. New use deltas option which will attempt to locate
340 and search any appropriate delta CRLs available.
342 This work was sponsored by Google.
345 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
346 code and add additional score elements. Validate alternate CRL paths
347 as part of the CRL checking and indicate a new error "CRL path validation
348 error" in this case. Applications wanting additional details can use
349 the verify callback and check the new "parent" field. If this is not
350 NULL CRL path validation is taking place. Existing applications wont
351 see this because it requires extended CRL support which is off by
354 This work was sponsored by Google.
357 *) Support for freshest CRL extension.
359 This work was sponsored by Google.
362 *) Initial indirect CRL support. Currently only supported in the CRLs
363 passed directly and not via lookup. Process certificate issuer
364 CRL entry extension and lookup CRL entries by bother issuer name
365 and serial number. Check and process CRL issuer entry in IDP extension.
367 This work was sponsored by Google.
370 *) Add support for distinct certificate and CRL paths. The CRL issuer
371 certificate is validated separately in this case. Only enabled if
372 an extended CRL support flag is set: this flag will enable additional
373 CRL functionality in future.
375 This work was sponsored by Google.
378 *) Add support for policy mappings extension.
380 This work was sponsored by Google.
383 *) Fixes to pathlength constraint, self issued certificate handling,
384 policy processing to align with RFC3280 and PKITS tests.
386 This work was sponsored by Google.
389 *) Support for name constraints certificate extension. DN, email, DNS
390 and URI types are currently supported.
392 This work was sponsored by Google.
395 *) To cater for systems that provide a pointer-based thread ID rather
396 than numeric, deprecate the current numeric thread ID mechanism and
397 replace it with a structure and associated callback type. This
398 mechanism allows a numeric "hash" to be extracted from a thread ID in
399 either case, and on platforms where pointers are larger than 'long',
400 mixing is done to help ensure the numeric 'hash' is usable even if it
401 can't be guaranteed unique. The default mechanism is to use "&errno"
402 as a pointer-based thread ID to distinguish between threads.
404 Applications that want to provide their own thread IDs should now use
405 CRYPTO_THREADID_set_callback() to register a callback that will call
406 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
408 Note that ERR_remove_state() is now deprecated, because it is tied
409 to the assumption that thread IDs are numeric. ERR_remove_state(0)
410 to free the current thread's error state should be replaced by
411 ERR_remove_thread_state(NULL).
413 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
414 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
415 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
416 application was previously providing a numeric thread callback that
417 was inappropriate for distinguishing threads, then uniqueness might
418 have been obtained with &errno that happened immediately in the
419 intermediate development versions of OpenSSL; this is no longer the
420 case, the numeric thread callback will now override the automatic use
422 [Geoff Thorpe, with help from Bodo Moeller]
424 *) Initial support for different CRL issuing certificates. This covers a
425 simple case where the self issued certificates in the chain exist and
426 the real CRL issuer is higher in the existing chain.
428 This work was sponsored by Google.
431 *) Removed effectively defunct crypto/store from the build.
434 *) Revamp of STACK to provide stronger type-checking. Still to come:
435 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
436 ASN1_STRING, CONF_VALUE.
439 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
440 RAM on SSL connections. This option can save about 34k per idle SSL.
443 *) Revamp of LHASH to provide stronger type-checking. Still to come:
444 STACK, TXT_DB, bsearch, qsort.
447 *) Initial support for Cryptographic Message Syntax (aka CMS) based
448 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
449 support for data, signedData, compressedData, digestedData and
450 encryptedData, envelopedData types included. Scripts to check against
451 RFC4134 examples draft and interop and consistency checks of many
452 content types and variants.
455 *) Add options to enc utility to support use of zlib compression BIO.
458 *) Extend mk1mf to support importing of options and assembly language
459 files from Configure script, currently only included in VC-WIN32.
460 The assembly language rules can now optionally generate the source
461 files from the associated perl scripts.
464 *) Implement remaining functionality needed to support GOST ciphersuites.
465 Interop testing has been performed using CryptoPro implementations.
466 [Victor B. Wagner <vitus@cryptocom.ru>]
468 *) s390x assembler pack.
471 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
475 *) Implement Opaque PRF Input TLS extension as specified in
476 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
477 official specification yet and no extension type assignment by
478 IANA exists, this extension (for now) will have to be explicitly
479 enabled when building OpenSSL by providing the extension number
480 to use. For example, specify an option
482 -DTLSEXT_TYPE_opaque_prf_input=0x9527
484 to the "config" or "Configure" script to enable the extension,
485 assuming extension number 0x9527 (which is a completely arbitrary
486 and unofficial assignment based on the MD5 hash of the Internet
487 Draft). Note that by doing so, you potentially lose
488 interoperability with other TLS implementations since these might
489 be using the same extension number for other purposes.
491 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
492 opaque PRF input value to use in the handshake. This will create
493 an interal copy of the length-'len' string at 'src', and will
494 return non-zero for success.
496 To get more control and flexibility, provide a callback function
499 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
500 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
504 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
507 Callback function 'cb' will be called in handshakes, and is
508 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
509 Argument 'arg' is for application purposes (the value as given to
510 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
511 be provided to the callback function). The callback function
512 has to return non-zero to report success: usually 1 to use opaque
513 PRF input just if possible, or 2 to enforce use of the opaque PRF
514 input. In the latter case, the library will abort the handshake
515 if opaque PRF input is not successfully negotiated.
517 Arguments 'peerinput' and 'len' given to the callback function
518 will always be NULL and 0 in the case of a client. A server will
519 see the client's opaque PRF input through these variables if
520 available (NULL and 0 otherwise). Note that if the server
521 provides an opaque PRF input, the length must be the same as the
522 length of the client's opaque PRF input.
524 Note that the callback function will only be called when creating
525 a new session (session resumption can resume whatever was
526 previously negotiated), and will not be called in SSL 2.0
527 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
528 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
529 for applications that need to enforce opaque PRF input.
533 *) Update ssl code to support digests other than SHA1+MD5 for handshake
536 [Victor B. Wagner <vitus@cryptocom.ru>]
538 *) Add RFC4507 support to OpenSSL. This includes the corrections in
539 RFC4507bis. The encrypted ticket format is an encrypted encoded
540 SSL_SESSION structure, that way new session features are automatically
543 If a client application caches session in an SSL_SESSION structure
544 support is transparent because tickets are now stored in the encoded
547 The SSL_CTX structure automatically generates keys for ticket
548 protection in servers so again support should be possible
549 with no application modification.
551 If a client or server wishes to disable RFC4507 support then the option
552 SSL_OP_NO_TICKET can be set.
554 Add a TLS extension debugging callback to allow the contents of any client
555 or server extensions to be examined.
557 This work was sponsored by Google.
560 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
561 OpenSSL should now compile cleanly on gcc 4.2
562 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
564 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
565 support including streaming MAC support: this is required for GOST
567 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
569 *) Add option -stream to use PKCS#7 streaming in smime utility. New
570 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
571 to output in BER and PEM format.
574 *) Experimental support for use of HMAC via EVP_PKEY interface. This
575 allows HMAC to be handled via the EVP_DigestSign*() interface. The
576 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
577 ENGINE support for HMAC keys which are unextractable. New -mac and
578 -macopt options to dgst utility.
581 *) New option -sigopt to dgst utility. Update dgst to use
582 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
583 alternative signing paramaters such as X9.31 or PSS in the dgst
587 *) Change ssl_cipher_apply_rule(), the internal function that does
588 the work each time a ciphersuite string requests enabling
589 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
590 removing ("!foo+bar") a class of ciphersuites: Now it maintains
591 the order of disabled ciphersuites such that those ciphersuites
592 that most recently went from enabled to disabled not only stay
593 in order with respect to each other, but also have higher priority
594 than other disabled ciphersuites the next time ciphersuites are
597 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
598 the same ciphersuites as with "HIGH" alone, but in a specific
599 order where the PSK ciphersuites come first (since they are the
600 most recently disabled ciphersuites when "HIGH" is parsed).
602 Also, change ssl_create_cipher_list() (using this new
603 funcionality) such that between otherwise identical
604 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
608 *) Change ssl_create_cipher_list() so that it automatically
609 arranges the ciphersuites in reasonable order before starting
610 to process the rule string. Thus, the definition for "DEFAULT"
611 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
612 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
613 This makes it much easier to arrive at a reasonable default order
614 in applications for which anonymous ciphers are OK (meaning
615 that you can't actually use DEFAULT).
616 [Bodo Moeller; suggested by Victor Duchovni]
618 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
619 processing) into multiple integers instead of setting
620 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
621 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
622 (These masks as well as the individual bit definitions are hidden
623 away into the non-exported interface ssl/ssl_locl.h, so this
624 change to the definition of the SSL_CIPHER structure shouldn't
625 affect applications.) This give us more bits for each of these
626 categories, so there is no longer a need to coagulate AES128 and
627 AES256 into a single algorithm bit, and to coagulate Camellia128
628 and Camellia256 into a single algorithm bit, which has led to all
631 Thus, among other things, the kludge introduced in 0.9.7m and
632 0.9.8e for masking out AES256 independently of AES128 or masking
633 out Camellia256 independently of AES256 is not needed here in 0.9.9.
635 With the change, we also introduce new ciphersuite aliases that
636 so far were missing: "AES128", "AES256", "CAMELLIA128", and
640 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
641 Use the leftmost N bytes of the signature input if the input is
642 larger than the prime q (with N being the size in bytes of q).
645 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
646 it yet and it is largely untested.
649 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
652 *) Initial incomplete changes to avoid need for function casts in OpenSSL
653 some compilers (gcc 4.2 and later) reject their use. Safestack is
654 reimplemented. Update ASN1 to avoid use of legacy functions.
657 *) Win32/64 targets are linked with Winsock2.
660 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
661 to external functions. This can be used to increase CRL handling
662 efficiency especially when CRLs are very large by (for example) storing
663 the CRL revoked certificates in a database.
666 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
667 new CRLs added to a directory can be used. New command line option
668 -verify_return_error to s_client and s_server. This causes real errors
669 to be returned by the verify callback instead of carrying on no matter
670 what. This reflects the way a "real world" verify callback would behave.
673 *) GOST engine, supporting several GOST algorithms and public key formats.
674 Kindly donated by Cryptocom.
677 *) Partial support for Issuing Distribution Point CRL extension. CRLs
678 partitioned by DP are handled but no indirect CRL or reason partitioning
679 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
680 selected via a scoring technique which handles IDP and AKID in CRLs.
683 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
684 will ultimately be used for all verify operations: this will remove the
685 X509_STORE dependency on certificate verification and allow alternative
686 lookup methods. X509_STORE based implementations of these two callbacks.
689 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
690 Modify get_crl() to find a valid (unexpired) CRL if possible.
693 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
694 this would be called X509_CRL_cmp() but that name is already used by
695 a function that just compares CRL issuer names. Cache several CRL
696 extensions in X509_CRL structure and cache CRLDP in X509.
699 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
700 this maps equivalent X509_NAME structures into a consistent structure.
701 Name comparison can then be performed rapidly using memcmp().
704 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
708 *) Allow digests to supply their own micalg string for S/MIME type using
709 the ctrl EVP_MD_CTRL_MICALG.
712 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
713 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
714 ctrl. It can then customise the structure before and/or after signing
718 *) New function OBJ_add_sigid() to allow application defined signature OIDs
719 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
720 to free up any added signature OIDs.
723 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
724 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
725 digest and cipher tables. New options added to openssl utility:
726 list-message-digest-algorithms and list-cipher-algorithms.
729 *) Change the array representation of binary polynomials: the list
730 of degrees of non-zero coefficients is now terminated with -1.
731 Previously it was terminated with 0, which was also part of the
732 value; thus, the array representation was not applicable to
733 polynomials where t^0 has coefficient zero. This change makes
734 the array representation useful in a more general context.
737 *) Various modifications and fixes to SSL/TLS cipher string
738 handling. For ECC, the code now distinguishes between fixed ECDH
739 with RSA certificates on the one hand and with ECDSA certificates
740 on the other hand, since these are separate ciphersuites. The
741 unused code for Fortezza ciphersuites has been removed.
743 For consistency with EDH, ephemeral ECDH is now called "EECDH"
744 (not "ECDHE"). For consistency with the code for DH
745 certificates, use of ECDH certificates is now considered ECDH
746 authentication, not RSA or ECDSA authentication (the latter is
747 merely the CA's signing algorithm and not actively used in the
750 The temporary ciphersuite alias "ECCdraft" is no longer
751 available, and ECC ciphersuites are no longer excluded from "ALL"
752 and "DEFAULT". The following aliases now exist for RFC 4492
753 ciphersuites, most of these by analogy with the DH case:
755 kECDHr - ECDH cert, signed with RSA
756 kECDHe - ECDH cert, signed with ECDSA
757 kECDH - ECDH cert (signed with either RSA or ECDSA)
758 kEECDH - ephemeral ECDH
759 ECDH - ECDH cert or ephemeral ECDH
765 AECDH - anonymous ECDH
766 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
770 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
771 Use correct micalg parameters depending on digest(s) in signed message.
774 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
775 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
778 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
779 an engine to register a method. Add ENGINE lookups for methods and
780 functional reference processing.
783 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
784 EVP_{Sign,Verify}* which allow an application to customise the signature
788 *) New -resign option to smime utility. This adds one or more signers
789 to an existing PKCS#7 signedData structure. Also -md option to use an
790 alternative message digest algorithm for signing.
793 *) Tidy up PKCS#7 routines and add new functions to make it easier to
794 create PKCS7 structures containing multiple signers. Update smime
795 application to support multiple signers.
798 *) New -macalg option to pkcs12 utility to allow setting of an alternative
802 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
803 Reorganize PBE internals to lookup from a static table using NIDs,
804 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
805 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
806 PRF which will be automatically used with PBES2.
809 *) Replace the algorithm specific calls to generate keys in "req" with the
813 *) Update PKCS#7 enveloped data routines to use new API. This is now
814 supported by any public key method supporting the encrypt operation. A
815 ctrl is added to allow the public key algorithm to examine or modify
816 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
820 *) Add a ctrl to asn1 method to allow a public key algorithm to express
821 a default digest type to use. In most cases this will be SHA1 but some
822 algorithms (such as GOST) need to specify an alternative digest. The
823 return value indicates how strong the prefernce is 1 means optional and
824 2 is mandatory (that is it is the only supported type). Modify
825 ASN1_item_sign() to accept a NULL digest argument to indicate it should
826 use the default md. Update openssl utilities to use the default digest
827 type for signing if it is not explicitly indicated.
830 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
831 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
832 signing method from the key type. This effectively removes the link
833 between digests and public key types.
836 *) Add an OID cross reference table and utility functions. Its purpose is to
837 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
838 rsaEncryption. This will allow some of the algorithm specific hackery
839 needed to use the correct OID to be removed.
842 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
843 structures for PKCS7_sign(). They are now set up by the relevant public
847 *) Add provisional EC pkey method with support for ECDSA and ECDH.
850 *) Add support for key derivation (agreement) in the API, DH method and
854 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
855 public and private key formats. As a side effect these add additional
856 command line functionality not previously available: DSA signatures can be
857 generated and verified using pkeyutl and DH key support and generation in
862 [Oliver Tappe <zooey@hirschkaefer.de>]
864 *) New make target "install_html_docs" installs HTML renditions of the
866 [Oliver Tappe <zooey@hirschkaefer.de>]
868 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
869 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
870 support key and parameter generation and add initial key generation
871 functionality for RSA.
874 *) Add functions for main EVP_PKEY_method operations. The undocumented
875 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
876 EVP_PKEY_{encrypt,decrypt}_old.
879 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
880 key API, doesn't do much yet.
883 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
884 public key algorithms. New option to openssl utility:
885 "list-public-key-algorithms" to print out info.
888 *) Implement the Supported Elliptic Curves Extension for
889 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
892 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
893 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
896 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
897 utilities such as rsa, dsa, dsaparam etc except they process any key
901 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
902 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
903 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
907 *) Initial support for pluggable public key ASN1.
908 De-spaghettify the public key ASN1 handling. Move public and private
909 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
910 algorithm specific handling to a single module within the relevant
911 algorithm directory. Add functions to allow (near) opaque processing
912 of public and private key structures.
915 *) Implement the Supported Point Formats Extension for
916 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
919 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
920 for the psk identity [hint] and the psk callback functions to the
921 SSL_SESSION, SSL and SSL_CTX structure.
924 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
928 SSL_CTX_use_psk_identity_hint
929 SSL_get_psk_identity_hint
931 SSL_use_psk_identity_hint
933 [Mika Kousa and Pasi Eronen of Nokia Corporation]
935 *) Add RFC 3161 compliant time stamp request creation, response generation
936 and response verification functionality.
937 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
939 *) Add initial support for TLS extensions, specifically for the server_name
940 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
941 have new members for a host name. The SSL data structure has an
942 additional member SSL_CTX *initial_ctx so that new sessions can be
943 stored in that context to allow for session resumption, even after the
944 SSL has been switched to a new SSL_CTX in reaction to a client's
945 server_name extension.
947 New functions (subject to change):
950 SSL_get_servername_type()
953 New CTRL codes and macros (subject to change):
955 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
956 - SSL_CTX_set_tlsext_servername_callback()
957 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
958 - SSL_CTX_set_tlsext_servername_arg()
959 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
961 openssl s_client has a new '-servername ...' option.
963 openssl s_server has new options '-servername_host ...', '-cert2 ...',
964 '-key2 ...', '-servername_fatal' (subject to change). This allows
965 testing the HostName extension for a specific single host name ('-cert'
966 and '-key' remain fallbacks for handshakes without HostName
967 negotiation). If the unrecogninzed_name alert has to be sent, this by
968 default is a warning; it becomes fatal with the '-servername_fatal'
971 [Peter Sylvester, Remy Allais, Christophe Renou]
973 *) Whirlpool hash implementation is added.
976 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
977 bn(64,32). Because of instruction set limitations it doesn't have
978 any negative impact on performance. This was done mostly in order
979 to make it possible to share assembler modules, such as bn_mul_mont
980 implementations, between 32- and 64-bit builds without hassle.
983 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
984 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
988 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
989 dedicated Montgomery multiplication procedure, is introduced.
990 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
991 "64-bit" performance on certain 32-bit targets.
994 *) New option SSL_OP_NO_COMP to disable use of compression selectively
995 in SSL structures. New SSL ctrl to set maximum send fragment size.
996 Save memory by seeting the I/O buffer sizes dynamically instead of
997 using the maximum available value.
1000 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1001 in addition to the text details.
1004 *) Very, very preliminary EXPERIMENTAL support for printing of general
1005 ASN1 structures. This currently produces rather ugly output and doesn't
1006 handle several customised structures at all.
1009 *) Integrated support for PVK file format and some related formats such
1010 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1011 these in the 'rsa' and 'dsa' utilities.
1014 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1017 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1018 place for the (very old) "NETSCAPE" format certificates which are now
1019 handled using new ASN1 code equivalents.
1022 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1023 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1024 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1027 *) Modify CRL distribution points extension code to print out previously
1028 unsupported fields. Enhance extension setting code to allow setting of
1032 *) Add print and set support for Issuing Distribution Point CRL extension.
1035 *) Change 'Configure' script to enable Camellia by default.
1038 Changes between 0.9.8r and 0.9.8s [xx XXX xxxx]
1040 *) Add protection against ECDSA timing attacks as mentioned in the paper
1041 by Billy Bob Brumley and Nicola Tuveri, see:
1043 http://eprint.iacr.org/2011/232.pdf
1045 [Billy Bob Brumley and Nicola Tuveri]
1047 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1049 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1050 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1052 *) Fix bug in string printing code: if *any* escaping is enabled we must
1053 escape the escape character (backslash) or the resulting string is
1057 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1059 *) Disable code workaround for ancient and obsolete Netscape browsers
1060 and servers: an attacker can use it in a ciphersuite downgrade attack.
1061 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1064 *) Fixed J-PAKE implementation error, originally discovered by
1065 Sebastien Martini, further info and confirmation from Stefan
1066 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1069 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1071 *) Fix extension code to avoid race conditions which can result in a buffer
1072 overrun vulnerability: resumed sessions must not be modified as they can
1073 be shared by multiple threads. CVE-2010-3864
1076 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1079 *) Don't reencode certificate when calculating signature: cache and use
1080 the original encoding instead. This makes signature verification of
1081 some broken encodings work correctly.
1084 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1085 is also one of the inputs.
1086 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1088 *) Don't repeatedly append PBE algorithms to table if they already exist.
1089 Sort table on each new add. This effectively makes the table read only
1090 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1094 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1096 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1099 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1100 access or freeing data twice (CVE-2010-0742)
1101 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1103 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1104 common in certificates and some applications which only call
1105 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1109 Reduce copying into .apps and .test in makevms.com
1110 Don't try to use blank CA certificate in CA.com
1111 Allow use of C files from original directories in maketests.com
1112 [Steven M. Schweda" <sms@antinode.info>]
1114 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1116 *) When rejecting SSL/TLS records due to an incorrect version number, never
1117 update s->server with a new major version number. As of
1118 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1119 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1120 the previous behavior could result in a read attempt at NULL when
1121 receiving specific incorrect SSL/TLS records once record payload
1122 protection is active. (CVE-2010-0740)
1123 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1125 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1126 could be crashed if the relevant tables were not present (e.g. chrooted).
1127 [Tomas Hoger <thoger@redhat.com>]
1129 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1131 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1132 [Martin Olsson, Neel Mehta]
1134 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1135 accommodate for stack sorting, always a write lock!).
1138 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1139 excessive delays in the RAND_poll(): over a minute. As a workaround
1140 include a time check in the inner Heap32Next loop too.
1143 *) The code that handled flushing of data in SSL/TLS originally used the
1144 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1145 the problem outlined in PR#1949. The fix suggested there however can
1146 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1147 of Apache). So instead simplify the code to flush unconditionally.
1148 This should be fine since flushing with no data to flush is a no op.
1151 *) Handle TLS versions 2.0 and later properly and correctly use the
1152 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1153 off ancient servers have a habit of sticking around for a while...
1156 *) Modify compression code so it frees up structures without using the
1157 ex_data callbacks. This works around a problem where some applications
1158 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1159 restarting) then use compression (e.g. SSL with compression) later.
1160 This results in significant per-connection memory leaks and
1161 has caused some security issues including CVE-2008-1678 and
1165 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1166 change when encrypting or decrypting.
1169 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1170 connect and renegotiate with servers which do not support RI.
1171 Until RI is more widely deployed this option is enabled by default.
1174 *) Add "missing" ssl ctrls to clear options and mode.
1177 *) If client attempts to renegotiate and doesn't support RI respond with
1178 a no_renegotiation alert as required by RFC5746. Some renegotiating
1179 TLS clients will continue a connection gracefully when they receive
1180 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1181 waiting for a server hello which it will never receive. Now we treat a
1182 received no_renegotiation alert as a fatal error. This is because
1183 applications requesting a renegotiation might well expect it to succeed
1184 and would have no code in place to handle the server denying it so the
1185 only safe thing to do is to terminate the connection.
1188 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1189 peer supports secure renegotiation and 0 otherwise. Print out peer
1190 renegotiation support in s_client/s_server.
1193 *) Replace the highly broken and deprecated SPKAC certification method with
1194 the updated NID creation version. This should correctly handle UTF8.
1197 *) Implement RFC5746. Re-enable renegotiation but require the extension
1198 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1199 turns out to be a bad idea. It has been replaced by
1200 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1201 SSL_CTX_set_options(). This is really not recommended unless you
1202 know what you are doing.
1203 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1205 *) Fixes to stateless session resumption handling. Use initial_ctx when
1206 issuing and attempting to decrypt tickets in case it has changed during
1207 servername handling. Use a non-zero length session ID when attempting
1208 stateless session resumption: this makes it possible to determine if
1209 a resumption has occurred immediately after receiving server hello
1210 (several places in OpenSSL subtly assume this) instead of later in
1214 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1215 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1216 fixes for a few places where the return code is not checked
1218 [Julia Lawall <julia@diku.dk>]
1220 *) Add --strict-warnings option to Configure script to include devteam
1221 warnings in other configurations.
1224 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1225 makes it possible to install openssl libraries in locations which
1226 have names other than "lib", for example "/usr/lib64" which some
1228 [Steve Henson, based on patch from Jeremy Utley]
1230 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1231 X690 8.9.12 and can produce some misleading textual output of OIDs.
1232 [Steve Henson, reported by Dan Kaminsky]
1234 *) Delete MD2 from algorithm tables. This follows the recommendation in
1235 several standards that it is not used in new applications due to
1236 several cryptographic weaknesses. For binary compatibility reasons
1237 the MD2 API is still compiled in by default.
1240 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1244 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1245 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1247 [Guenter <lists@gknw.net>]
1249 *) Fix the server certificate chain building code to use X509_verify_cert(),
1250 it used to have an ad-hoc builder which was unable to cope with anything
1251 other than a simple chain.
1252 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1254 *) Don't check self signed certificate signatures in X509_verify_cert()
1255 by default (a flag can override this): it just wastes time without
1256 adding any security. As a useful side effect self signed root CAs
1257 with non-FIPS digests are now usable in FIPS mode.
1260 *) In dtls1_process_out_of_seq_message() the check if the current message
1261 is already buffered was missing. For every new message was memory
1262 allocated, allowing an attacker to perform an denial of service attack
1263 with sending out of seq handshake messages until there is no memory
1264 left. Additionally every future messege was buffered, even if the
1265 sequence number made no sense and would be part of another handshake.
1266 So only messages with sequence numbers less than 10 in advance will be
1267 buffered. (CVE-2009-1378)
1268 [Robin Seggelmann, discovered by Daniel Mentz]
1270 *) Records are buffered if they arrive with a future epoch to be
1271 processed after finishing the corresponding handshake. There is
1272 currently no limitation to this buffer allowing an attacker to perform
1273 a DOS attack with sending records with future epochs until there is no
1274 memory left. This patch adds the pqueue_size() function to detemine
1275 the size of a buffer and limits the record buffer to 100 entries.
1277 [Robin Seggelmann, discovered by Daniel Mentz]
1279 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1280 parent structure is freed. (CVE-2009-1379)
1283 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1284 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1287 [Ilya O. <vrghost@gmail.com>]
1289 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1291 *) Disable renegotiation completely - this fixes a severe security
1292 problem (CVE-2009-3555) at the cost of breaking all
1293 renegotiation. Renegotiation can be re-enabled by setting
1294 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1295 run-time. This is really not recommended unless you know what
1299 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1301 *) Don't set val to NULL when freeing up structures, it is freed up by
1302 underlying code. If sizeof(void *) > sizeof(long) this can result in
1303 zeroing past the valid field. (CVE-2009-0789)
1304 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1306 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1307 checked correctly. This would allow some invalid signed attributes to
1308 appear to verify correctly. (CVE-2009-0591)
1309 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1311 *) Reject UniversalString and BMPString types with invalid lengths. This
1312 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1313 a legal length. (CVE-2009-0590)
1316 *) Set S/MIME signing as the default purpose rather than setting it
1317 unconditionally. This allows applications to override it at the store
1321 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1322 to handle some structures.
1325 *) Improve efficiency of mem_gets: don't search whole buffer each time
1327 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1329 *) New -hex option for openssl rand.
1332 *) Print out UTF8String and NumericString when parsing ASN1.
1335 *) Support NumericString type for name components.
1338 *) Allow CC in the environment to override the automatically chosen
1339 compiler. Note that nothing is done to ensure flags work with the
1343 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1345 *) Properly check EVP_VerifyFinal() and similar return values
1347 [Ben Laurie, Bodo Moeller, Google Security Team]
1349 *) Enable TLS extensions by default.
1352 *) Allow the CHIL engine to be loaded, whether the application is
1353 multithreaded or not. (This does not release the developer from the
1354 obligation to set up the dynamic locking callbacks.)
1355 [Sander Temme <sander@temme.net>]
1357 *) Use correct exit code if there is an error in dgst command.
1358 [Steve Henson; problem pointed out by Roland Dirlewanger]
1360 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1361 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1364 *) Add experimental JPAKE support, including demo authentication in
1365 s_client and s_server.
1368 *) Set the comparison function in v3_addr_canonize().
1369 [Rob Austein <sra@hactrn.net>]
1371 *) Add support for XMPP STARTTLS in s_client.
1372 [Philip Paeps <philip@freebsd.org>]
1374 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1375 to ensure that even with this option, only ciphersuites in the
1376 server's preference list will be accepted. (Note that the option
1377 applies only when resuming a session, so the earlier behavior was
1378 just about the algorithm choice for symmetric cryptography.)
1381 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1383 *) Fix NULL pointer dereference if a DTLS server received
1384 ChangeCipherSpec as first record (CVE-2009-1386).
1387 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1388 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1391 *) The fix in 0.9.8c that supposedly got rid of unsafe
1392 double-checked locking was incomplete for RSA blinding,
1393 addressing just one layer of what turns out to have been
1394 doubly unsafe triple-checked locking.
1396 So now fix this for real by retiring the MONT_HELPER macro
1397 in crypto/rsa/rsa_eay.c.
1399 [Bodo Moeller; problem pointed out by Marius Schilder]
1401 *) Various precautionary measures:
1403 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1405 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1406 (NB: This would require knowledge of the secret session ticket key
1407 to exploit, in which case you'd be SOL either way.)
1409 - Change bn_nist.c so that it will properly handle input BIGNUMs
1410 outside the expected range.
1412 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1415 [Neel Mehta, Bodo Moeller]
1417 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1418 the load fails. Useful for distros.
1419 [Ben Laurie and the FreeBSD team]
1421 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1424 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1427 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1429 This work was sponsored by Logica.
1432 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1433 keystores. Support for SSL/TLS client authentication too.
1434 Not compiled unless enable-capieng specified to Configure.
1436 This work was sponsored by Logica.
1439 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1440 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1441 attribute creation routines such as certifcate requests and PKCS#12
1445 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1447 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1448 handshake which could lead to a cilent crash as found using the
1449 Codenomicon TLS test suite (CVE-2008-1672)
1450 [Steve Henson, Mark Cox]
1452 *) Fix double free in TLS server name extensions which could lead to
1453 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1456 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1458 Clear the error queue to ensure that error entries left from
1459 older function calls do not interfere with the correct operation.
1460 [Lutz Jaenicke, Erik de Castro Lopo]
1462 *) Remove root CA certificates of commercial CAs:
1464 The OpenSSL project does not recommend any specific CA and does not
1465 have any policy with respect to including or excluding any CA.
1466 Therefore it does not make any sense to ship an arbitrary selection
1467 of root CA certificates with the OpenSSL software.
1470 *) RSA OAEP patches to fix two separate invalid memory reads.
1471 The first one involves inputs when 'lzero' is greater than
1472 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1473 before the beginning of from). The second one involves inputs where
1474 the 'db' section contains nothing but zeroes (there is a one-byte
1475 invalid read after the end of 'db').
1476 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1478 *) Partial backport from 0.9.9-dev:
1480 Introduce bn_mul_mont (dedicated Montgomery multiplication
1481 procedure) as a candidate for BIGNUM assembler implementation.
1482 While 0.9.9-dev uses assembler for various architectures, only
1483 x86_64 is available by default here in the 0.9.8 branch, and
1484 32-bit x86 is available through a compile-time setting.
1486 To try the 32-bit x86 assembler implementation, use Configure
1487 option "enable-montasm" (which exists only for this backport).
1489 As "enable-montasm" for 32-bit x86 disclaims code stability
1490 anyway, in this constellation we activate additional code
1491 backported from 0.9.9-dev for further performance improvements,
1492 namely BN_from_montgomery_word. (To enable this otherwise,
1493 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1495 [Andy Polyakov (backport partially by Bodo Moeller)]
1497 *) Add TLS session ticket callback. This allows an application to set
1498 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1499 values. This is useful for key rollover for example where several key
1500 sets may exist with different names.
1503 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1504 This was broken until now in 0.9.8 releases, such that the only way
1505 a registered ENGINE could be used (assuming it initialises
1506 successfully on the host) was to explicitly set it as the default
1507 for the relevant algorithms. This is in contradiction with 0.9.7
1508 behaviour and the documentation. With this fix, when an ENGINE is
1509 registered into a given algorithm's table of implementations, the
1510 'uptodate' flag is reset so that auto-discovery will be used next
1511 time a new context for that algorithm attempts to select an
1513 [Ian Lister (tweaked by Geoff Thorpe)]
1515 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1516 implemention in the following ways:
1518 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1521 Lack of BER streaming support means one pass streaming processing is
1522 only supported if data is detached: setting the streaming flag is
1523 ignored for embedded content.
1525 CMS support is disabled by default and must be explicitly enabled
1526 with the enable-cms configuration option.
1529 *) Update the GMP engine glue to do direct copies between BIGNUM and
1530 mpz_t when openssl and GMP use the same limb size. Otherwise the
1531 existing "conversion via a text string export" trick is still used.
1532 [Paul Sheer <paulsheer@gmail.com>]
1534 *) Zlib compression BIO. This is a filter BIO which compressed and
1535 uncompresses any data passed through it.
1538 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1539 RFC3394 compatible AES key wrapping.
1542 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1543 sets string data without copying. X509_ALGOR_set0() and
1544 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1545 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1546 from an X509_ATTRIBUTE structure optionally checking it occurs only
1547 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1551 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1552 to get the expected BN_FLG_CONSTTIME behavior.
1553 [Bodo Moeller (Google)]
1557 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1558 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1559 - added some more tests to do_tests.pl
1560 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1561 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1562 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1563 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1564 - various changes to netware.pl to enable gcc-cross builds on Win32
1566 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1567 - various changes to fix missing prototype warnings
1568 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1569 - added AES, WHIRLPOOL and CPUID assembler code to build files
1570 - added missing AES assembler make rules to mk1mf.pl
1571 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1572 [Guenter Knauf <eflash@gmx.net>]
1574 *) Implement certificate status request TLS extension defined in RFC3546.
1575 A client can set the appropriate parameters and receive the encoded
1576 OCSP response via a callback. A server can query the supplied parameters
1577 and set the encoded OCSP response in the callback. Add simplified examples
1578 to s_client and s_server.
1581 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1583 *) Fix various bugs:
1584 + Binary incompatibility of ssl_ctx_st structure
1585 + DTLS interoperation with non-compliant servers
1586 + Don't call get_session_cb() without proposed session
1587 + Fix ia64 assembler code
1588 [Andy Polyakov, Steve Henson]
1590 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1592 *) DTLS Handshake overhaul. There were longstanding issues with
1593 OpenSSL DTLS implementation, which were making it impossible for
1594 RFC 4347 compliant client to communicate with OpenSSL server.
1595 Unfortunately just fixing these incompatibilities would "cut off"
1596 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1597 server keeps tolerating non RFC compliant syntax. The opposite is
1598 not true, 0.9.8f client can not communicate with earlier server.
1599 This update even addresses CVE-2007-4995.
1602 *) Changes to avoid need for function casts in OpenSSL: some compilers
1603 (gcc 4.2 and later) reject their use.
1604 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1607 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1608 RFC4507bis. The encrypted ticket format is an encrypted encoded
1609 SSL_SESSION structure, that way new session features are automatically
1612 If a client application caches session in an SSL_SESSION structure
1613 support is transparent because tickets are now stored in the encoded
1616 The SSL_CTX structure automatically generates keys for ticket
1617 protection in servers so again support should be possible
1618 with no application modification.
1620 If a client or server wishes to disable RFC4507 support then the option
1621 SSL_OP_NO_TICKET can be set.
1623 Add a TLS extension debugging callback to allow the contents of any client
1624 or server extensions to be examined.
1626 This work was sponsored by Google.
1629 *) Add initial support for TLS extensions, specifically for the server_name
1630 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1631 have new members for a host name. The SSL data structure has an
1632 additional member SSL_CTX *initial_ctx so that new sessions can be
1633 stored in that context to allow for session resumption, even after the
1634 SSL has been switched to a new SSL_CTX in reaction to a client's
1635 server_name extension.
1637 New functions (subject to change):
1639 SSL_get_servername()
1640 SSL_get_servername_type()
1643 New CTRL codes and macros (subject to change):
1645 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1646 - SSL_CTX_set_tlsext_servername_callback()
1647 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1648 - SSL_CTX_set_tlsext_servername_arg()
1649 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1651 openssl s_client has a new '-servername ...' option.
1653 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1654 '-key2 ...', '-servername_fatal' (subject to change). This allows
1655 testing the HostName extension for a specific single host name ('-cert'
1656 and '-key' remain fallbacks for handshakes without HostName
1657 negotiation). If the unrecogninzed_name alert has to be sent, this by
1658 default is a warning; it becomes fatal with the '-servername_fatal'
1661 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1663 *) Add AES and SSE2 assembly language support to VC++ build.
1666 *) Mitigate attack on final subtraction in Montgomery reduction.
1669 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1670 (which previously caused an internal error).
1673 *) Squeeze another 10% out of IGE mode when in != out.
1676 *) AES IGE mode speedup.
1677 [Dean Gaudet (Google)]
1679 *) Add the Korean symmetric 128-bit cipher SEED (see
1680 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1681 add SEED ciphersuites from RFC 4162:
1683 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1684 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1685 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1686 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1688 To minimize changes between patchlevels in the OpenSSL 0.9.8
1689 series, SEED remains excluded from compilation unless OpenSSL
1690 is configured with 'enable-seed'.
1691 [KISA, Bodo Moeller]
1693 *) Mitigate branch prediction attacks, which can be practical if a
1694 single processor is shared, allowing a spy process to extract
1695 information. For detailed background information, see
1696 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1697 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1698 and Necessary Software Countermeasures"). The core of the change
1699 are new versions BN_div_no_branch() and
1700 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1701 respectively, which are slower, but avoid the security-relevant
1702 conditional branches. These are automatically called by BN_div()
1703 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1704 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1705 remove a conditional branch.
1707 BN_FLG_CONSTTIME is the new name for the previous
1708 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1709 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1710 in the exponent causes BN_mod_exp_mont() to use the alternative
1711 implementation in BN_mod_exp_mont_consttime().) The old name
1712 remains as a deprecated alias.
1714 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1715 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1716 constant-time implementations for more than just exponentiation.
1717 Here too the old name is kept as a deprecated alias.
1719 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1720 the BN_BLINDING structure gets an independent copy of the
1721 modulus. This means that the previous "BIGNUM *m" argument to
1722 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1723 essentially becomes "const BIGNUM *m", although we can't actually
1724 change this in the header file before 0.9.9. It allows
1725 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1726 enable BN_FLG_CONSTTIME.
1728 [Matthew D Wood (Intel Corp)]
1730 *) In the SSL/TLS server implementation, be strict about session ID
1731 context matching (which matters if an application uses a single
1732 external cache for different purposes). Previously,
1733 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1734 set. This did ensure strict client verification, but meant that,
1735 with applications using a single external cache for quite
1736 different requirements, clients could circumvent ciphersuite
1737 restrictions for a given session ID context by starting a session
1738 in a different context.
1741 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1742 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1743 authentication-only ciphersuites.
1746 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1747 not complete and could lead to a possible single byte overflow
1748 (CVE-2007-5135) [Ben Laurie]
1750 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1752 *) Since AES128 and AES256 (and similarly Camellia128 and
1753 Camellia256) share a single mask bit in the logic of
1754 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1755 kludge to work properly if AES128 is available and AES256 isn't
1756 (or if Camellia128 is available and Camellia256 isn't).
1759 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1760 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1761 When a point or a seed is encoded in a BIT STRING, we need to
1762 prevent the removal of trailing zero bits to get the proper DER
1763 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1764 of a NamedBitList, for which trailing 0 bits need to be removed.)
1767 *) Have SSL/TLS server implementation tolerate "mismatched" record
1768 protocol version while receiving ClientHello even if the
1769 ClientHello is fragmented. (The server can't insist on the
1770 particular protocol version it has chosen before the ServerHello
1771 message has informed the client about his choice.)
1774 *) Add RFC 3779 support.
1775 [Rob Austein for ARIN, Ben Laurie]
1777 *) Load error codes if they are not already present instead of using a
1778 static variable. This allows them to be cleanly unloaded and reloaded.
1779 Improve header file function name parsing.
1782 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1783 or CAPABILITY handshake as required by RFCs.
1786 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1788 *) Introduce limits to prevent malicious keys being able to
1789 cause a denial of service. (CVE-2006-2940)
1790 [Steve Henson, Bodo Moeller]
1792 *) Fix ASN.1 parsing of certain invalid structures that can result
1793 in a denial of service. (CVE-2006-2937) [Steve Henson]
1795 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1796 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1798 *) Fix SSL client code which could crash if connecting to a
1799 malicious SSLv2 server. (CVE-2006-4343)
1800 [Tavis Ormandy and Will Drewry, Google Security Team]
1802 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1803 match only those. Before that, "AES256-SHA" would be interpreted
1804 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1805 the same strength classification in 0.9.7h) as we currently only
1806 have a single AES bit in the ciphersuite description bitmap.
1807 That change, however, also applied to ciphersuite strings such as
1808 "RC4-MD5" that intentionally matched multiple ciphersuites --
1809 namely, SSL 2.0 ciphersuites in addition to the more common ones
1810 from SSL 3.0/TLS 1.0.
1812 So we change the selection algorithm again: Naming an explicit
1813 ciphersuite selects this one ciphersuite, and any other similar
1814 ciphersuite (same bitmap) from *other* protocol versions.
1815 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1816 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1818 Since SSL 2.0 does not have any ciphersuites for which the
1819 128/256 bit distinction would be relevant, this works for now.
1820 The proper fix will be to use different bits for AES128 and
1821 AES256, which would have avoided the problems from the beginning;
1822 however, bits are scarce, so we can only do this in a new release
1823 (not just a patchlevel) when we can change the SSL_CIPHER
1824 definition to split the single 'unsigned long mask' bitmap into
1825 multiple values to extend the available space.
1829 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1831 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1832 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1834 *) Add AES IGE and biIGE modes.
1837 *) Change the Unix randomness entropy gathering to use poll() when
1838 possible instead of select(), since the latter has some
1839 undesirable limitations.
1840 [Darryl Miles via Richard Levitte and Bodo Moeller]
1842 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1843 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1844 cannot be implicitly activated as part of, e.g., the "AES" alias.
1845 However, please upgrade to OpenSSL 0.9.9[-dev] for
1846 non-experimental use of the ECC ciphersuites to get TLS extension
1847 support, which is required for curve and point format negotiation
1848 to avoid potential handshake problems.
1851 *) Disable rogue ciphersuites:
1853 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1854 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1855 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1857 The latter two were purportedly from
1858 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1861 Also deactivate the remaining ciphersuites from
1862 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1863 unofficial, and the ID has long expired.
1866 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1867 dual-core machines) and other potential thread-safety issues.
1870 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1871 versions), which is now available for royalty-free use
1872 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1873 Also, add Camellia TLS ciphersuites from RFC 4132.
1875 To minimize changes between patchlevels in the OpenSSL 0.9.8
1876 series, Camellia remains excluded from compilation unless OpenSSL
1877 is configured with 'enable-camellia'.
1880 *) Disable the padding bug check when compression is in use. The padding
1881 bug check assumes the first packet is of even length, this is not
1882 necessarily true if compresssion is enabled and can result in false
1883 positives causing handshake failure. The actual bug test is ancient
1884 code so it is hoped that implementations will either have fixed it by
1885 now or any which still have the bug do not support compression.
1888 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1890 *) When applying a cipher rule check to see if string match is an explicit
1891 cipher suite and only match that one cipher suite if it is.
1894 *) Link in manifests for VC++ if needed.
1895 [Austin Ziegler <halostatue@gmail.com>]
1897 *) Update support for ECC-based TLS ciphersuites according to
1898 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1899 TLS extensions, which are supported starting with the 0.9.9
1900 branch, not in the OpenSSL 0.9.8 branch).
1903 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1904 opaque EVP_CIPHER_CTX handling.
1907 *) Fixes and enhancements to zlib compression code. We now only use
1908 "zlib1.dll" and use the default __cdecl calling convention on Win32
1909 to conform with the standards mentioned here:
1910 http://www.zlib.net/DLL_FAQ.txt
1911 Static zlib linking now works on Windows and the new --with-zlib-include
1912 --with-zlib-lib options to Configure can be used to supply the location
1913 of the headers and library. Gracefully handle case where zlib library
1917 *) Several fixes and enhancements to the OID generation code. The old code
1918 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1919 handle numbers larger than ULONG_MAX, truncated printing and had a
1920 non standard OBJ_obj2txt() behaviour.
1923 *) Add support for building of engines under engine/ as shared libraries
1924 under VC++ build system.
1927 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1928 Hopefully, we will not see any false combination of paths any more.
1931 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1933 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1934 (part of SSL_OP_ALL). This option used to disable the
1935 countermeasure against man-in-the-middle protocol-version
1936 rollback in the SSL 2.0 server implementation, which is a bad
1937 idea. (CVE-2005-2969)
1939 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1940 for Information Security, National Institute of Advanced Industrial
1941 Science and Technology [AIST], Japan)]
1943 *) Add two function to clear and return the verify parameter flags.
1946 *) Keep cipherlists sorted in the source instead of sorting them at
1947 runtime, thus removing the need for a lock.
1950 *) Avoid some small subgroup attacks in Diffie-Hellman.
1951 [Nick Mathewson and Ben Laurie]
1953 *) Add functions for well-known primes.
1956 *) Extended Windows CE support.
1957 [Satoshi Nakamura and Andy Polyakov]
1959 *) Initialize SSL_METHOD structures at compile time instead of during
1960 runtime, thus removing the need for a lock.
1963 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1964 attempting to decrypt each encrypted key in turn. Add support to
1968 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1970 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1973 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1976 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1977 key into the same file any more.
1980 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1983 *) Add -utf8 command line and config file option to 'ca'.
1984 [Stefan <stf@udoma.org]
1986 *) Removed the macro des_crypt(), as it seems to conflict with some
1987 libraries. Use DES_crypt().
1990 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1991 involves renaming the source and generated shared-libs for
1992 both. The engines will accept the corrected or legacy ids
1993 ('ncipher' and '4758_cca' respectively) when binding. NB,
1994 this only applies when building 'shared'.
1995 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1997 *) Add attribute functions to EVP_PKEY structure. Modify
1998 PKCS12_create() to recognize a CSP name attribute and
1999 use it. Make -CSP option work again in pkcs12 utility.
2002 *) Add new functionality to the bn blinding code:
2003 - automatic re-creation of the BN_BLINDING parameters after
2004 a fixed number of uses (currently 32)
2005 - add new function for parameter creation
2006 - introduce flags to control the update behaviour of the
2007 BN_BLINDING parameters
2008 - hide BN_BLINDING structure
2009 Add a second BN_BLINDING slot to the RSA structure to improve
2010 performance when a single RSA object is shared among several
2014 *) Add support for DTLS.
2015 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2017 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2018 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2021 *) Remove buggy and incompletet DH cert support from
2022 ssl/ssl_rsa.c and ssl/s3_both.c
2025 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2026 the apps/openssl applications.
2029 *) Compile clean with "-Wall -Wmissing-prototypes
2030 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2031 DEBUG_SAFESTACK must also be set.
2034 *) Change ./Configure so that certain algorithms can be disabled by default.
2035 The new counterpiece to "no-xxx" is "enable-xxx".
2037 The patented RC5 and MDC2 algorithms will now be disabled unless
2038 "enable-rc5" and "enable-mdc2", respectively, are specified.
2040 (IDEA remains enabled despite being patented. This is because IDEA
2041 is frequently required for interoperability, and there is no license
2042 fee for non-commercial use. As before, "no-idea" can be used to
2043 avoid this algorithm.)
2047 *) Add processing of proxy certificates (see RFC 3820). This work was
2048 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2049 EGEE (Enabling Grids for E-science in Europe).
2052 *) RC4 performance overhaul on modern architectures/implementations, such
2053 as Intel P4, IA-64 and AMD64.
2056 *) New utility extract-section.pl. This can be used specify an alternative
2057 section number in a pod file instead of having to treat each file as
2058 a separate case in Makefile. This can be done by adding two lines to the
2061 =for comment openssl_section:XXX
2063 The blank line is mandatory.
2067 *) New arguments -certform, -keyform and -pass for s_client and s_server
2068 to allow alternative format key and certificate files and passphrase
2072 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2073 update associated structures and add various utility functions.
2075 Add new policy related verify parameters, include policy checking in
2076 standard verify code. Enhance 'smime' application with extra parameters
2077 to support policy checking and print out.
2080 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2081 Nehemiah processors. These extensions support AES encryption in hardware
2082 as well as RNG (though RNG support is currently disabled).
2083 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2085 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2088 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2089 [Andy Polyakov and a number of other people]
2091 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2092 implementation contributed by IBM.
2093 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2095 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2096 exponent rather than 'unsigned long'. There is a corresponding change to
2097 the new 'rsa_keygen' element of the RSA_METHOD structure.
2098 [Jelte Jansen, Geoff Thorpe]
2100 *) Functionality for creating the initial serial number file is now
2101 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2103 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2104 number file to 1, which is bound to cause problems. To avoid
2105 the problems while respecting compatibility between different 0.9.7
2106 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2107 CA.pl for serial number initialization. With the new release 0.9.8,
2108 we can fix the problem directly in the 'ca' utility.)
2111 *) Reduced header interdepencies by declaring more opaque objects in
2112 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2113 give fewer recursive includes, which could break lazy source code - so
2114 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2115 developers should define this symbol when building and using openssl to
2116 ensure they track the recommended behaviour, interfaces, [etc], but
2117 backwards-compatible behaviour prevails when this isn't defined.
2120 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2123 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2124 This will generate a random key of the appropriate length based on the
2125 cipher context. The EVP_CIPHER can provide its own random key generation
2126 routine to support keys of a specific form. This is used in the des and
2127 3des routines to generate a key of the correct parity. Update S/MIME
2128 code to use new functions and hence generate correct parity DES keys.
2129 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2130 valid (weak or incorrect parity).
2133 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2134 as looking them up. This is useful when the verified structure may contain
2135 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2136 present unless the new PKCS7_NO_CRL flag is asserted.
2139 *) Extend ASN1 oid configuration module. It now additionally accepts the
2142 shortName = some long name, 1.2.3.4
2145 *) Reimplemented the BN_CTX implementation. There is now no more static
2146 limitation on the number of variables it can handle nor the depth of the
2147 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2148 information can now expand as required, and rather than having a single
2149 static array of bignums, BN_CTX now uses a linked-list of such arrays
2150 allowing it to expand on demand whilst maintaining the usefulness of
2151 BN_CTX's "bundling".
2154 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2155 to allow all RSA operations to function using a single BN_CTX.
2158 *) Preliminary support for certificate policy evaluation and checking. This
2159 is initially intended to pass the tests outlined in "Conformance Testing
2160 of Relying Party Client Certificate Path Processing Logic" v1.07.
2163 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2164 remained unused and not that useful. A variety of other little bignum
2165 tweaks and fixes have also been made continuing on from the audit (see
2169 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2170 associated ASN1, EVP and SSL functions and old ASN1 macros.
2173 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2174 and this should never fail. So the return value from the use of
2175 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2176 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2179 *) BN_CTX_get() should return zero-valued bignums, providing the same
2180 initialised value as BN_new().
2181 [Geoff Thorpe, suggested by Ulf Möller]
2183 *) Support for inhibitAnyPolicy certificate extension.
2186 *) An audit of the BIGNUM code is underway, for which debugging code is
2187 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2188 is considered valid when processing BIGNUMs, and causes execution to
2189 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2190 further steps are taken to deliberately pollute unused data in BIGNUM
2191 structures to try and expose faulty code further on. For now, openssl will
2192 (in its default mode of operation) continue to tolerate the inconsistent
2193 forms that it has tolerated in the past, but authors and packagers should
2194 consider trying openssl and their own applications when compiled with
2195 these debugging symbols defined. It will help highlight potential bugs in
2196 their own code, and will improve the test coverage for OpenSSL itself. At
2197 some point, these tighter rules will become openssl's default to improve
2198 maintainability, though the assert()s and other overheads will remain only
2199 in debugging configurations. See bn.h for more details.
2200 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2202 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2203 that can only be obtained through BN_CTX_new() (which implicitly
2204 initialises it). The presence of this function only made it possible
2205 to overwrite an existing structure (and cause memory leaks).
2208 *) Because of the callback-based approach for implementing LHASH as a
2209 template type, lh_insert() adds opaque objects to hash-tables and
2210 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2211 to clean up those corresponding objects before destroying the hash table
2212 (and losing the object pointers). So some over-zealous constifications in
2213 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2214 objects as "const" and the lh_doall[_arg] callback wrappers are not
2215 prototyped to have "const" restrictions on the object pointers they are
2216 given (and so aren't required to cast them away any more).
2219 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2220 (speed) prefers to use its own implementation. The two implementations
2221 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2222 its object type properly exposed (MS_TM) instead of casting to/from "char
2223 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2224 aren't necessarily the greatest nomenclatures - but this is what was used
2225 internally to the implementation so I've used that for now.
2228 *) Ensure that deprecated functions do not get compiled when
2229 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2230 the self-tests were still using deprecated key-generation functions so
2231 these have been updated also.
2234 *) Reorganise PKCS#7 code to separate the digest location functionality
2235 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2236 New function PKCS7_set_digest() to set the digest type for PKCS#7
2237 digestedData type. Add additional code to correctly generate the
2238 digestedData type and add support for this type in PKCS7 initialization
2242 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2243 structure of type "other".
2246 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2247 sure the loop does correctly stop and breaking ("division by zero")
2248 modulus operations are not performed. The (pre-generated) prime
2249 table crypto/bn/bn_prime.h was already correct, but it could not be
2250 re-generated on some platforms because of the "division by zero"
2251 situation in the script.
2252 [Ralf S. Engelschall]
2254 *) Update support for ECC-based TLS ciphersuites according to
2255 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2256 SHA-1 now is only used for "small" curves (where the
2257 representation of a field element takes up to 24 bytes); for
2258 larger curves, the field element resulting from ECDH is directly
2259 used as premaster secret.
2260 [Douglas Stebila (Sun Microsystems Laboratories)]
2262 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2263 curve secp160r1 to the tests.
2264 [Douglas Stebila (Sun Microsystems Laboratories)]
2266 *) Add the possibility to load symbols globally with DSO.
2267 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2269 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2270 control of the error stack.
2273 *) Add support for STORE in ENGINE.
2276 *) Add the STORE type. The intention is to provide a common interface
2277 to certificate and key stores, be they simple file-based stores, or
2278 HSM-type store, or LDAP stores, or...
2279 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2282 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2283 pass a list of arguments to any function as well as provide a way
2284 for a function to pass data back to the caller.
2287 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2288 works like BUF_strdup() but can be used to duplicate a portion of
2289 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2293 *) Add the function sk_find_ex() which works like sk_find(), but will
2294 return an index to an element even if an exact match couldn't be
2295 found. The index is guaranteed to point at the element where the
2296 searched-for key would be inserted to preserve sorting order.
2299 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2300 takes an extra flags argument for optional functionality. Currently,
2301 the following flags are defined:
2303 OBJ_BSEARCH_VALUE_ON_NOMATCH
2304 This one gets OBJ_bsearch_ex() to return a pointer to the first
2305 element where the comparing function returns a negative or zero
2308 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2309 This one gets OBJ_bsearch_ex() to return a pointer to the first
2310 element where the comparing function returns zero. This is useful
2311 if there are more than one element where the comparing function
2315 *) Make it possible to create self-signed certificates with 'openssl ca'
2316 in such a way that the self-signed certificate becomes part of the
2317 CA database and uses the same mechanisms for serial number generation
2318 as all other certificate signing. The new flag '-selfsign' enables
2319 this functionality. Adapt CA.sh and CA.pl.in.
2322 *) Add functionality to check the public key of a certificate request
2323 against a given private. This is useful to check that a certificate
2324 request can be signed by that key (self-signing).
2327 *) Make it possible to have multiple active certificates with the same
2328 subject in the CA index file. This is done only if the keyword
2329 'unique_subject' is set to 'no' in the main CA section (default
2330 if 'CA_default') of the configuration file. The value is saved
2331 with the database itself in a separate index attribute file,
2332 named like the index file with '.attr' appended to the name.
2335 *) Generate muti valued AVAs using '+' notation in config files for
2339 *) Support for nameConstraints certificate extension.
2342 *) Support for policyConstraints certificate extension.
2345 *) Support for policyMappings certificate extension.
2348 *) Make sure the default DSA_METHOD implementation only uses its
2349 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2350 and change its own handlers to be NULL so as to remove unnecessary
2351 indirection. This lets alternative implementations fallback to the
2352 default implementation more easily.
2355 *) Support for directoryName in GeneralName related extensions
2359 *) Make it possible to link applications using Makefile.shared.
2360 Make that possible even when linking against static libraries!
2363 *) Support for single pass processing for S/MIME signing. This now
2364 means that S/MIME signing can be done from a pipe, in addition
2365 cleartext signing (multipart/signed type) is effectively streaming
2366 and the signed data does not need to be all held in memory.
2368 This is done with a new flag PKCS7_STREAM. When this flag is set
2369 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2370 is done after the data is output (and digests calculated) in
2371 SMIME_write_PKCS7().
2374 *) Add full support for -rpath/-R, both in shared libraries and
2375 applications, at least on the platforms where it's known how
2379 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2380 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2381 will now compute a table of multiples of the generator that
2382 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2383 faster (notably in the case of a single point multiplication,
2384 scalar * generator).
2385 [Nils Larsch, Bodo Moeller]
2387 *) IPv6 support for certificate extensions. The various extensions
2388 which use the IP:a.b.c.d can now take IPv6 addresses using the
2389 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2393 *) Added an ENGINE that implements RSA by performing private key
2394 exponentiations with the GMP library. The conversions to and from
2395 GMP's mpz_t format aren't optimised nor are any montgomery forms
2396 cached, and on x86 it appears OpenSSL's own performance has caught up.
2397 However there are likely to be other architectures where GMP could
2398 provide a boost. This ENGINE is not built in by default, but it can be
2399 specified at Configure time and should be accompanied by the necessary
2400 linker additions, eg;
2401 ./config -DOPENSSL_USE_GMP -lgmp
2404 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2405 testing availability of engines with "-t" - the old behaviour is
2406 produced by increasing the feature's verbosity with "-tt".
2409 *) ECDSA routines: under certain error conditions uninitialized BN objects
2410 could be freed. Solution: make sure initialization is performed early
2411 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2415 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2416 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2417 software implementations. For DSA and DH, parameter generation can
2418 also be overriden by providing the appropriate method callbacks.
2421 *) Change the "progress" mechanism used in key-generation and
2422 primality testing to functions that take a new BN_GENCB pointer in
2423 place of callback/argument pairs. The new API functions have "_ex"
2424 postfixes and the older functions are reimplemented as wrappers for
2425 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2426 declarations of the old functions to help (graceful) attempts to
2427 migrate to the new functions. Also, the new key-generation API
2428 functions operate on a caller-supplied key-structure and return
2429 success/failure rather than returning a key or NULL - this is to
2430 help make "keygen" another member function of RSA_METHOD etc.
2432 Example for using the new callback interface:
2434 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2438 BN_GENCB_set(&my_cb, my_callback, my_arg);
2440 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2441 /* For the meaning of a, b in calls to my_callback(), see the
2442 * documentation of the function that calls the callback.
2443 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2444 * my_callback should return 1 if it wants BN_is_prime_ex()
2445 * to continue, or 0 to stop.
2450 *) Change the ZLIB compression method to be stateful, and make it
2451 available to TLS with the number defined in
2452 draft-ietf-tls-compression-04.txt.
2455 *) Add the ASN.1 structures and functions for CertificatePair, which
2456 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2458 CertificatePair ::= SEQUENCE {
2459 forward [0] Certificate OPTIONAL,
2460 reverse [1] Certificate OPTIONAL,
2461 -- at least one of the pair shall be present -- }
2463 Also implement the PEM functions to read and write certificate
2464 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2466 This needed to be defined, mostly for the sake of the LDAP
2467 attribute crossCertificatePair, but may prove useful elsewhere as
2471 *) Make it possible to inhibit symlinking of shared libraries in
2472 Makefile.shared, for Cygwin's sake.
2475 *) Extend the BIGNUM API by creating a function
2476 void BN_set_negative(BIGNUM *a, int neg);
2477 and a macro that behave like
2478 int BN_is_negative(const BIGNUM *a);
2480 to avoid the need to access 'a->neg' directly in applications.
2483 *) Implement fast modular reduction for pseudo-Mersenne primes
2484 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2485 EC_GROUP_new_curve_GFp() will now automatically use this
2487 [Nils Larsch <nla@trustcenter.de>]
2489 *) Add new lock type (CRYPTO_LOCK_BN).
2492 *) Change the ENGINE framework to automatically load engines
2493 dynamically from specific directories unless they could be
2494 found to already be built in or loaded. Move all the
2495 current engines except for the cryptodev one to a new
2497 The engines in engines/ are built as shared libraries if
2498 the "shared" options was given to ./Configure or ./config.
2499 Otherwise, they are inserted in libcrypto.a.
2500 /usr/local/ssl/engines is the default directory for dynamic
2501 engines, but that can be overriden at configure time through
2502 the usual use of --prefix and/or --openssldir, and at run
2503 time with the environment variable OPENSSL_ENGINES.
2504 [Geoff Thorpe and Richard Levitte]
2506 *) Add Makefile.shared, a helper makefile to build shared
2507 libraries. Addapt Makefile.org.
2510 *) Add version info to Win32 DLLs.
2511 [Peter 'Luna' Runestig" <peter@runestig.com>]
2513 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2514 can be added using this API to created arbitrary PKCS#12
2515 files while avoiding the low level API.
2517 New options to PKCS12_create(), key or cert can be NULL and
2518 will then be omitted from the output file. The encryption
2519 algorithm NIDs can be set to -1 for no encryption, the mac
2520 iteration count can be set to 0 to omit the mac.
2522 Enhance pkcs12 utility by making the -nokeys and -nocerts
2523 options work when creating a PKCS#12 file. New option -nomac
2524 to omit the mac, NONE can be set for an encryption algorithm.
2525 New code is modified to use the enhanced PKCS12_create()
2526 instead of the low level API.
2529 *) Extend ASN1 encoder to support indefinite length constructed
2530 encoding. This can output sequences tags and octet strings in
2531 this form. Modify pk7_asn1.c to support indefinite length
2532 encoding. This is experimental and needs additional code to
2533 be useful, such as an ASN1 bio and some enhanced streaming
2536 Extend template encode functionality so that tagging is passed
2537 down to the template encoder.
2540 *) Let 'openssl req' fail if an argument to '-newkey' is not
2541 recognized instead of using RSA as a default.
2544 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2545 As these are not official, they are not included in "ALL";
2546 the "ECCdraft" ciphersuite group alias can be used to select them.
2547 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2549 *) Add ECDH engine support.
2550 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2552 *) Add ECDH in new directory crypto/ecdh/.
2553 [Douglas Stebila (Sun Microsystems Laboratories)]
2555 *) Let BN_rand_range() abort with an error after 100 iterations
2556 without success (which indicates a broken PRNG).
2559 *) Change BN_mod_sqrt() so that it verifies that the input value
2560 is really the square of the return value. (Previously,
2561 BN_mod_sqrt would show GIGO behaviour.)
2564 *) Add named elliptic curves over binary fields from X9.62, SECG,
2565 and WAP/WTLS; add OIDs that were still missing.
2567 [Sheueling Chang Shantz and Douglas Stebila
2568 (Sun Microsystems Laboratories)]
2570 *) Extend the EC library for elliptic curves over binary fields
2571 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2574 EC_GF2m_simple_method
2578 EC_GROUP_new_curve_GF2m
2579 EC_GROUP_set_curve_GF2m
2580 EC_GROUP_get_curve_GF2m
2581 EC_POINT_set_affine_coordinates_GF2m
2582 EC_POINT_get_affine_coordinates_GF2m
2583 EC_POINT_set_compressed_coordinates_GF2m
2585 Point compression for binary fields is disabled by default for
2586 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2589 As binary polynomials are represented as BIGNUMs, various members
2590 of the EC_GROUP and EC_POINT data structures can be shared
2591 between the implementations for prime fields and binary fields;
2592 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2593 are essentially identical to their ..._GFp counterparts.
2594 (For simplicity, the '..._GFp' prefix has been dropped from
2595 various internal method names.)
2597 An internal 'field_div' method (similar to 'field_mul' and
2598 'field_sqr') has been added; this is used only for binary fields.
2600 [Sheueling Chang Shantz and Douglas Stebila
2601 (Sun Microsystems Laboratories)]
2603 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2604 through methods ('mul', 'precompute_mult').
2606 The generic implementations (now internally called 'ec_wNAF_mul'
2607 and 'ec_wNAF_precomputed_mult') remain the default if these
2608 methods are undefined.
2610 [Sheueling Chang Shantz and Douglas Stebila
2611 (Sun Microsystems Laboratories)]
2613 *) New function EC_GROUP_get_degree, which is defined through
2614 EC_METHOD. For curves over prime fields, this returns the bit
2615 length of the modulus.
2617 [Sheueling Chang Shantz and Douglas Stebila
2618 (Sun Microsystems Laboratories)]
2620 *) New functions EC_GROUP_dup, EC_POINT_dup.
2621 (These simply call ..._new and ..._copy).
2623 [Sheueling Chang Shantz and Douglas Stebila
2624 (Sun Microsystems Laboratories)]
2626 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2627 Polynomials are represented as BIGNUMs (where the sign bit is not
2628 used) in the following functions [macros]:
2631 BN_GF2m_sub [= BN_GF2m_add]
2632 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2633 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2634 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2636 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2637 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2638 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2639 BN_GF2m_cmp [= BN_ucmp]
2641 (Note that only the 'mod' functions are actually for fields GF(2^m).
2642 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2644 For some functions, an the irreducible polynomial defining a
2645 field can be given as an 'unsigned int[]' with strictly
2646 decreasing elements giving the indices of those bits that are set;
2647 i.e., p[] represents the polynomial
2648 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2650 p[0] > p[1] > ... > p[k] = 0.
2651 This applies to the following functions:
2656 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2657 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2659 BN_GF2m_mod_sqrt_arr
2660 BN_GF2m_mod_solve_quad_arr
2664 Conversion can be performed by the following functions:
2669 bntest.c has additional tests for binary polynomial arithmetic.
2671 Two implementations for BN_GF2m_mod_div() are available.
2672 The default algorithm simply uses BN_GF2m_mod_inv() and
2673 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2674 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2675 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2677 [Sheueling Chang Shantz and Douglas Stebila
2678 (Sun Microsystems Laboratories)]
2680 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2681 functionality is disabled at compile-time.
2682 [Douglas Stebila <douglas.stebila@sun.com>]
2684 *) Change default behaviour of 'openssl asn1parse' so that more
2685 information is visible when viewing, e.g., a certificate:
2687 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2688 mode the content of non-printable OCTET STRINGs is output in a
2689 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2690 avoid the appearance of a printable string.
2691 [Nils Larsch <nla@trustcenter.de>]
2693 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2695 EC_GROUP_set_asn1_flag()
2696 EC_GROUP_get_asn1_flag()
2697 EC_GROUP_set_point_conversion_form()
2698 EC_GROUP_get_point_conversion_form()
2699 These control ASN1 encoding details:
2700 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2701 has been set to OPENSSL_EC_NAMED_CURVE.
2702 - Points are encoded in uncompressed form by default; options for
2703 asn1_for are as for point2oct, namely
2704 POINT_CONVERSION_COMPRESSED
2705 POINT_CONVERSION_UNCOMPRESSED
2706 POINT_CONVERSION_HYBRID
2708 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2711 EC_GROUP_get0_seed()
2712 EC_GROUP_get_seed_len()
2713 This is used only for ASN1 purposes (so far).
2714 [Nils Larsch <nla@trustcenter.de>]
2716 *) Add 'field_type' member to EC_METHOD, which holds the NID
2717 of the appropriate field type OID. The new function
2718 EC_METHOD_get_field_type() returns this value.
2719 [Nils Larsch <nla@trustcenter.de>]
2724 EC_POINT_point2hex()
2725 EC_POINT_hex2point()
2726 providing useful interfaces to EC_POINT_point2oct() and
2727 EC_POINT_oct2point().
2728 [Nils Larsch <nla@trustcenter.de>]
2730 *) Change internals of the EC library so that the functions
2731 EC_GROUP_set_generator()
2732 EC_GROUP_get_generator()
2733 EC_GROUP_get_order()
2734 EC_GROUP_get_cofactor()
2735 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2736 to methods, which would lead to unnecessary code duplication when
2737 adding different types of curves.
2738 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2740 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2741 arithmetic, and such that modified wNAFs are generated
2742 (which avoid length expansion in many cases).
2745 *) Add a function EC_GROUP_check_discriminant() (defined via
2746 EC_METHOD) that verifies that the curve discriminant is non-zero.
2748 Add a function EC_GROUP_check() that makes some sanity tests
2749 on a EC_GROUP, its generator and order. This includes
2750 EC_GROUP_check_discriminant().
2751 [Nils Larsch <nla@trustcenter.de>]
2753 *) Add ECDSA in new directory crypto/ecdsa/.
2755 Add applications 'openssl ecparam' and 'openssl ecdsa'
2756 (these are based on 'openssl dsaparam' and 'openssl dsa').
2758 ECDSA support is also included in various other files across the
2759 library. Most notably,
2760 - 'openssl req' now has a '-newkey ecdsa:file' option;
2761 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2762 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2763 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2764 them suitable for ECDSA where domain parameters must be
2765 extracted before the specific public key;
2766 - ECDSA engine support has been added.
2767 [Nils Larsch <nla@trustcenter.de>]
2769 *) Include some named elliptic curves, and add OIDs from X9.62,
2770 SECG, and WAP/WTLS. Each curve can be obtained from the new
2772 EC_GROUP_new_by_curve_name(),
2773 and the list of available named curves can be obtained with
2774 EC_get_builtin_curves().
2775 Also add a 'curve_name' member to EC_GROUP objects, which can be
2777 EC_GROUP_set_curve_name()
2778 EC_GROUP_get_curve_name()
2779 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2781 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2782 was actually never needed) and in BN_mul(). The removal in BN_mul()
2783 required a small change in bn_mul_part_recursive() and the addition
2784 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2785 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2786 bn_sub_words() and bn_add_words() except they take arrays with
2790 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2792 *) Cleanse PEM buffers before freeing them since they may contain
2794 [Benjamin Bennett <ben@psc.edu>]
2796 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2797 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2798 authentication-only ciphersuites.
2801 *) Since AES128 and AES256 share a single mask bit in the logic of
2802 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2803 kludge to work properly if AES128 is available and AES256 isn't.
2806 *) Expand security boundary to match 1.1.1 module.
2809 *) Remove redundant features: hash file source, editing of test vectors
2810 modify fipsld to use external fips_premain.c signature.
2813 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2814 run algorithm test programs.
2817 *) Make algorithm test programs more tolerant of whitespace.
2820 *) Have SSL/TLS server implementation tolerate "mismatched" record
2821 protocol version while receiving ClientHello even if the
2822 ClientHello is fragmented. (The server can't insist on the
2823 particular protocol version it has chosen before the ServerHello
2824 message has informed the client about his choice.)
2827 *) Load error codes if they are not already present instead of using a
2828 static variable. This allows them to be cleanly unloaded and reloaded.
2831 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2833 *) Introduce limits to prevent malicious keys being able to
2834 cause a denial of service. (CVE-2006-2940)
2835 [Steve Henson, Bodo Moeller]
2837 *) Fix ASN.1 parsing of certain invalid structures that can result
2838 in a denial of service. (CVE-2006-2937) [Steve Henson]
2840 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2841 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2843 *) Fix SSL client code which could crash if connecting to a
2844 malicious SSLv2 server. (CVE-2006-4343)
2845 [Tavis Ormandy and Will Drewry, Google Security Team]
2847 *) Change ciphersuite string processing so that an explicit
2848 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2849 will no longer include "AES128-SHA"), and any other similar
2850 ciphersuite (same bitmap) from *other* protocol versions (so that
2851 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2852 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2853 changes from 0.9.8b and 0.9.8d.
2856 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2858 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2859 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2861 *) Change the Unix randomness entropy gathering to use poll() when
2862 possible instead of select(), since the latter has some
2863 undesirable limitations.
2864 [Darryl Miles via Richard Levitte and Bodo Moeller]
2866 *) Disable rogue ciphersuites:
2868 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2869 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2870 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2872 The latter two were purportedly from
2873 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2876 Also deactive the remaining ciphersuites from
2877 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2878 unofficial, and the ID has long expired.
2881 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2882 dual-core machines) and other potential thread-safety issues.
2885 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2887 *) Adapt fipsld and the build system to link against the validated FIPS
2888 module in FIPS mode.
2891 *) Fixes for VC++ 2005 build under Windows.
2894 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2895 from a Windows bash shell such as MSYS. It is autodetected from the
2896 "config" script when run from a VC++ environment. Modify standard VC++
2897 build to use fipscanister.o from the GNU make build.
2900 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2902 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2903 The value now differs depending on if you build for FIPS or not.
2904 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2905 safely run with a non-FIPSed libcrypto, as it may crash because of
2906 the difference induced by this change.
2909 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2911 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2912 (part of SSL_OP_ALL). This option used to disable the
2913 countermeasure against man-in-the-middle protocol-version
2914 rollback in the SSL 2.0 server implementation, which is a bad
2915 idea. (CVE-2005-2969)
2917 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2918 for Information Security, National Institute of Advanced Industrial
2919 Science and Technology [AIST], Japan)]
2921 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2922 mainly for FIPS compliance and not fully integrated at this stage.
2925 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2926 the exponentiation using a fixed-length exponent. (Otherwise,
2927 the information leaked through timing could expose the secret key
2928 after many signatures; cf. Bleichenbacher's attack on DSA with
2932 *) Make a new fixed-window mod_exp implementation the default for
2933 RSA, DSA, and DH private-key operations so that the sequence of
2934 squares and multiplies and the memory access pattern are
2935 independent of the particular secret key. This will mitigate
2936 cache-timing and potential related attacks.
2938 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2939 and this is automatically used by BN_mod_exp_mont() if the new flag
2940 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2941 will use this BN flag for private exponents unless the flag
2942 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2943 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2945 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2947 *) Change the client implementation for SSLv23_method() and
2948 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2949 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2950 (Previously, the SSL 2.0 backwards compatible Client Hello
2951 message format would be used even with SSL_OP_NO_SSLv2.)
2954 *) Add support for smime-type MIME parameter in S/MIME messages which some
2958 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2959 a threadsafe manner. Modify rsa code to use new function and add calls
2960 to dsa and dh code (which had race conditions before).
2963 *) Include the fixed error library code in the C error file definitions
2964 instead of fixing them up at runtime. This keeps the error code
2965 structures constant.
2968 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2970 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2973 *) Fixes for newer kerberos headers. NB: the casts are needed because
2974 the 'length' field is signed on one version and unsigned on another
2975 with no (?) obvious way to tell the difference, without these VC++
2976 complains. Also the "definition" of FAR (blank) is no longer included
2977 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2978 some needed definitions.
2981 *) Undo Cygwin change.
2984 *) Added support for proxy certificates according to RFC 3820.
2985 Because they may be a security thread to unaware applications,
2986 they must be explicitely allowed in run-time. See
2987 docs/HOWTO/proxy_certificates.txt for further information.
2990 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2992 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2993 server and client random values. Previously
2994 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2995 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2997 This change has negligible security impact because:
2999 1. Server and client random values still have 24 bytes of pseudo random
3002 2. Server and client random values are sent in the clear in the initial
3005 3. The master secret is derived using the premaster secret (48 bytes in
3006 size for static RSA ciphersuites) as well as client server and random
3009 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3012 [Stephen Henson, reported by UK NISCC]
3014 *) Use Windows randomness collection on Cygwin.
3017 *) Fix hang in EGD/PRNGD query when communication socket is closed
3018 prematurely by EGD/PRNGD.
3019 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3021 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3024 *) Back-port of selected performance improvements from development
3025 branch, as well as improved support for PowerPC platforms.
3028 *) Add lots of checks for memory allocation failure, error codes to indicate
3029 failure and freeing up memory if a failure occurs.
3030 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3032 *) Add new -passin argument to dgst.
3035 *) Perform some character comparisons of different types in X509_NAME_cmp:
3036 this is needed for some certificates that reencode DNs into UTF8Strings
3037 (in violation of RFC3280) and can't or wont issue name rollover
3041 *) Make an explicit check during certificate validation to see that
3042 the CA setting in each certificate on the chain is correct. As a
3043 side effect always do the following basic checks on extensions,
3044 not just when there's an associated purpose to the check:
3046 - if there is an unhandled critical extension (unless the user
3047 has chosen to ignore this fault)
3048 - if the path length has been exceeded (if one is set at all)
3049 - that certain extensions fit the associated purpose (if one has
3053 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3055 *) Avoid a race condition when CRLs are checked in a multi threaded
3056 environment. This would happen due to the reordering of the revoked
3057 entries during signature checking and serial number lookup. Now the
3058 encoding is cached and the serial number sort performed under a lock.
3059 Add new STACK function sk_is_sorted().
3062 *) Add Delta CRL to the extension code.
3065 *) Various fixes to s3_pkt.c so alerts are sent properly.
3066 [David Holmes <d.holmes@f5.com>]
3068 *) Reduce the chances of duplicate issuer name and serial numbers (in
3069 violation of RFC3280) using the OpenSSL certificate creation utilities.
3070 This is done by creating a random 64 bit value for the initial serial
3071 number when a serial number file is created or when a self signed
3072 certificate is created using 'openssl req -x509'. The initial serial
3073 number file is created using 'openssl x509 -next_serial' in CA.pl
3074 rather than being initialized to 1.
3077 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3079 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3080 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3081 [Joe Orton, Steve Henson]
3083 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3085 [Joe Orton, Steve Henson]
3087 *) Make it possible to have multiple active certificates with the same
3088 subject in the CA index file. This is done only if the keyword
3089 'unique_subject' is set to 'no' in the main CA section (default
3090 if 'CA_default') of the configuration file. The value is saved
3091 with the database itself in a separate index attribute file,
3092 named like the index file with '.attr' appended to the name.
3095 *) X509 verify fixes. Disable broken certificate workarounds when
3096 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3097 keyUsage extension present. Don't accept CRLs with unhandled critical
3098 extensions: since verify currently doesn't process CRL extensions this
3099 rejects a CRL with *any* critical extensions. Add new verify error codes
3103 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3104 A clarification of RFC2560 will require the use of OCTET STRINGs and
3105 some implementations cannot handle the current raw format. Since OpenSSL
3106 copies and compares OCSP nonces as opaque blobs without any attempt at
3107 parsing them this should not create any compatibility issues.
3110 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3111 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3112 this HMAC (and other) operations are several times slower than OpenSSL
3116 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3117 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3119 *) Use the correct content when signing type "other".
3122 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3124 *) Fix various bugs revealed by running the NISCC test suite:
3126 Stop out of bounds reads in the ASN1 code when presented with
3127 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3129 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3131 If verify callback ignores invalid public key errors don't try to check
3132 certificate signature with the NULL public key.
3136 *) New -ignore_err option in ocsp application to stop the server
3137 exiting on the first error in a request.
3140 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3141 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3145 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3146 extra data after the compression methods not only for TLS 1.0
3147 but also for SSL 3.0 (as required by the specification).
3148 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3150 *) Change X509_certificate_type() to mark the key as exported/exportable
3151 when it's 512 *bits* long, not 512 bytes.
3154 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3155 blocks during encryption.
3158 *) Various fixes to base64 BIO and non blocking I/O. On write
3159 flushes were not handled properly if the BIO retried. On read
3160 data was not being buffered properly and had various logic bugs.
3161 This also affects blocking I/O when the data being decoded is a
3165 *) Various S/MIME bugfixes and compatibility changes:
3166 output correct application/pkcs7 MIME type if
3167 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3168 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3169 of files as .eml work). Correctly handle very long lines in MIME
3173 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3175 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3176 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3177 a protocol version number mismatch like a decryption error
3178 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3181 *) Turn on RSA blinding by default in the default implementation
3182 to avoid a timing attack. Applications that don't want it can call
3183 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3184 They would be ill-advised to do so in most cases.
3185 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3187 *) Change RSA blinding code so that it works when the PRNG is not
3188 seeded (in this case, the secret RSA exponent is abused as
3189 an unpredictable seed -- if it is not unpredictable, there
3190 is no point in blinding anyway). Make RSA blinding thread-safe
3191 by remembering the creator's thread ID in rsa->blinding and
3192 having all other threads use local one-time blinding factors
3193 (this requires more computation than sharing rsa->blinding, but
3194 avoids excessive locking; and if an RSA object is not shared
3195 between threads, blinding will still be very fast).
3198 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3199 ENGINE as defaults for all supported algorithms irrespective of
3200 the 'flags' parameter. 'flags' is now honoured, so applications
3201 should make sure they are passing it correctly.
3204 *) Target "mingw" now allows native Windows code to be generated in
3205 the Cygwin environment as well as with the MinGW compiler.
3208 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3210 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3211 via timing by performing a MAC computation even if incorrrect
3212 block cipher padding has been found. This is a countermeasure
3213 against active attacks where the attacker has to distinguish
3214 between bad padding and a MAC verification error. (CVE-2003-0078)
3216 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3217 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3218 Martin Vuagnoux (EPFL, Ilion)]
3220 *) Make the no-err option work as intended. The intention with no-err
3221 is not to have the whole error stack handling routines removed from
3222 libcrypto, it's only intended to remove all the function name and
3223 reason texts, thereby removing some of the footprint that may not
3224 be interesting if those errors aren't displayed anyway.
3226 NOTE: it's still possible for any application or module to have it's
3227 own set of error texts inserted. The routines are there, just not
3228 used by default when no-err is given.
3231 *) Add support for FreeBSD on IA64.
3232 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3234 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3235 Kerberos function mit_des_cbc_cksum(). Before this change,
3236 the value returned by DES_cbc_cksum() was like the one from
3237 mit_des_cbc_cksum(), except the bytes were swapped.
3238 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3240 *) Allow an application to disable the automatic SSL chain building.
3241 Before this a rather primitive chain build was always performed in
3242 ssl3_output_cert_chain(): an application had no way to send the
3243 correct chain if the automatic operation produced an incorrect result.
3245 Now the chain builder is disabled if either:
3247 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3249 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3251 The reasoning behind this is that an application would not want the
3252 auto chain building to take place if extra chain certificates are
3253 present and it might also want a means of sending no additional
3254 certificates (for example the chain has two certificates and the
3258 *) Add the possibility to build without the ENGINE framework.
3259 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3261 *) Under Win32 gmtime() can return NULL: check return value in
3262 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3265 *) DSA routines: under certain error conditions uninitialized BN objects
3266 could be freed. Solution: make sure initialization is performed early
3267 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3268 Nils Larsch <nla@trustcenter.de> via PR#459)
3271 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3272 checked on reconnect on the client side, therefore session resumption
3273 could still fail with a "ssl session id is different" error. This
3274 behaviour is masked when SSL_OP_ALL is used due to
3275 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3276 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3277 followup to PR #377.
3280 *) IA-32 assembler support enhancements: unified ELF targets, support
3281 for SCO/Caldera platforms, fix for Cygwin shared build.
3284 *) Add support for FreeBSD on sparc64. As a consequence, support for
3285 FreeBSD on non-x86 processors is separate from x86 processors on
3286 the config script, much like the NetBSD support.
3287 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3289 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3291 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3294 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3295 code (06) was taken as the first octet of the session ID and the last
3296 octet was ignored consequently. As a result SSLv2 client side session
3297 caching could not have worked due to the session ID mismatch between
3299 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3303 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3304 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3308 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3309 seems that in spite of existing for more than a year, many application
3310 author have done nothing to provide the necessary callbacks, which
3311 means that this particular engine will not work properly anywhere.
3312 This is a very unfortunate situation which forces us, in the name
3313 of usability, to give the hw_ncipher.c a static lock, which is part
3315 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3316 appear in 0.9.8 or later. We EXPECT application authors to have
3317 dealt properly with this when 0.9.8 is released (unless we actually
3318 make such changes in the libcrypto locking code that changes will
3319 have to be made anyway).
3322 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3323 octets have been read, EOF or an error occurs. Without this change
3324 some truncated ASN1 structures will not produce an error.
3327 *) Disable Heimdal support, since it hasn't been fully implemented.
3328 Still give the possibility to force the use of Heimdal, but with
3329 warnings and a request that patches get sent to openssl-dev.
3332 *) Add the VC-CE target, introduce the WINCE sysname, and add
3333 INSTALL.WCE and appropriate conditionals to make it build.
3334 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3336 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3337 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3338 edit numbers of the version.
3339 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3341 *) Introduce safe string copy and catenation functions
3342 (BUF_strlcpy() and BUF_strlcat()).
3343 [Ben Laurie (CHATS) and Richard Levitte]
3345 *) Avoid using fixed-size buffers for one-line DNs.
3346 [Ben Laurie (CHATS)]
3348 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3349 resizing buffers containing secrets, and use where appropriate.
3350 [Ben Laurie (CHATS)]
3352 *) Avoid using fixed size buffers for configuration file location.
3353 [Ben Laurie (CHATS)]
3355 *) Avoid filename truncation for various CA files.
3356 [Ben Laurie (CHATS)]
3358 *) Use sizeof in preference to magic numbers.
3359 [Ben Laurie (CHATS)]
3361 *) Avoid filename truncation in cert requests.
3362 [Ben Laurie (CHATS)]
3364 *) Add assertions to check for (supposedly impossible) buffer
3366 [Ben Laurie (CHATS)]
3368 *) Don't cache truncated DNS entries in the local cache (this could
3369 potentially lead to a spoofing attack).
3370 [Ben Laurie (CHATS)]
3372 *) Fix various buffers to be large enough for hex/decimal
3373 representations in a platform independent manner.
3374 [Ben Laurie (CHATS)]
3376 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3377 resizing buffers containing secrets, and use where appropriate.
3378 [Ben Laurie (CHATS)]
3380 *) Add BIO_indent() to avoid much slightly worrying code to do
3382 [Ben Laurie (CHATS)]
3384 *) Convert sprintf()/BIO_puts() to BIO_printf().
3385 [Ben Laurie (CHATS)]
3387 *) buffer_gets() could terminate with the buffer only half
3389 [Ben Laurie (CHATS)]
3391 *) Add assertions to prevent user-supplied crypto functions from
3392 overflowing internal buffers by having large block sizes, etc.
3393 [Ben Laurie (CHATS)]
3395 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3397 [Ben Laurie (CHATS)]
3399 *) Eliminate unused copy of key in RC4.
3400 [Ben Laurie (CHATS)]
3402 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3403 [Ben Laurie (CHATS)]
3405 *) Fix off-by-one error in EGD path.
3406 [Ben Laurie (CHATS)]
3408 *) If RANDFILE path is too long, ignore instead of truncating.
3409 [Ben Laurie (CHATS)]
3411 *) Eliminate unused and incorrectly sized X.509 structure
3413 [Ben Laurie (CHATS)]
3415 *) Eliminate unused and dangerous function knumber().
3416 [Ben Laurie (CHATS)]
3418 *) Eliminate unused and dangerous structure, KSSL_ERR.
3419 [Ben Laurie (CHATS)]
3421 *) Protect against overlong session ID context length in an encoded
3422 session object. Since these are local, this does not appear to be
3424 [Ben Laurie (CHATS)]
3426 *) Change from security patch (see 0.9.6e below) that did not affect
3427 the 0.9.6 release series:
3429 Remote buffer overflow in SSL3 protocol - an attacker could
3430 supply an oversized master key in Kerberos-enabled versions.
3432 [Ben Laurie (CHATS)]
3434 *) Change the SSL kerb5 codes to match RFC 2712.
3437 *) Make -nameopt work fully for req and add -reqopt switch.
3438 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3440 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3441 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3443 *) Make sure tests can be performed even if the corresponding algorithms
3444 have been removed entirely. This was also the last step to make
3445 OpenSSL compilable with DJGPP under all reasonable conditions.
3446 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3448 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3449 to allow version independent disabling of normally unselected ciphers,
3450 which may be activated as a side-effect of selecting a single cipher.
3452 (E.g., cipher list string "RSA" enables ciphersuites that are left
3453 out of "ALL" because they do not provide symmetric encryption.
3454 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3455 [Lutz Jaenicke, Bodo Moeller]
3457 *) Add appropriate support for separate platform-dependent build
3458 directories. The recommended way to make a platform-dependent
3459 build directory is the following (tested on Linux), maybe with
3462 # Place yourself outside of the OpenSSL source tree. In
3463 # this example, the environment variable OPENSSL_SOURCE
3464 # is assumed to contain the absolute OpenSSL source directory.
3465 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3466 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3467 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3468 mkdir -p `dirname $F`
3469 ln -s $OPENSSL_SOURCE/$F $F
3472 To be absolutely sure not to disturb the source tree, a "make clean"
3473 is a good thing. If it isn't successfull, don't worry about it,
3474 it probably means the source directory is very clean.
3477 *) Make sure any ENGINE control commands make local copies of string
3478 pointers passed to them whenever necessary. Otherwise it is possible
3479 the caller may have overwritten (or deallocated) the original string
3480 data when a later ENGINE operation tries to use the stored values.
3481 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3483 *) Improve diagnostics in file reading and command-line digests.
3484 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3486 *) Add AES modes CFB and OFB to the object database. Correct an
3487 error in AES-CFB decryption.
3490 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3491 allows existing EVP_CIPHER_CTX structures to be reused after
3492 calling EVP_*Final(). This behaviour is used by encryption
3493 BIOs and some applications. This has the side effect that
3494 applications must explicitly clean up cipher contexts with
3495 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3498 *) Check the values of dna and dnb in bn_mul_recursive before calling
3499 bn_mul_comba (a non zero value means the a or b arrays do not contain
3500 n2 elements) and fallback to bn_mul_normal if either is not zero.
3503 *) Fix escaping of non-ASCII characters when using the -subj option
3504 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3507 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3508 form for "surname", serialNumber has no short form.
3509 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3510 therefore remove "mail" short name for "internet 7".
3511 The OID for unique identifiers in X509 certificates is
3512 x500UniqueIdentifier, not uniqueIdentifier.
3513 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3516 *) Add an "init" command to the ENGINE config module and auto initialize
3517 ENGINEs. Without any "init" command the ENGINE will be initialized
3518 after all ctrl commands have been executed on it. If init=1 the
3519 ENGINE is initailized at that point (ctrls before that point are run
3520 on the uninitialized ENGINE and after on the initialized one). If
3521 init=0 then the ENGINE will not be iniatialized at all.
3524 *) Fix the 'app_verify_callback' interface so that the user-defined
3525 argument is actually passed to the callback: In the
3526 SSL_CTX_set_cert_verify_callback() prototype, the callback
3527 declaration has been changed from
3530 int (*cb)(X509_STORE_CTX *,void *);
3531 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3532 i=s->ctx->app_verify_callback(&ctx)
3533 has been changed into
3534 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3536 To update applications using SSL_CTX_set_cert_verify_callback(),
3537 a dummy argument can be added to their callback functions.
3538 [D. K. Smetters <smetters@parc.xerox.com>]
3540 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3541 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3543 *) Add and OPENSSL_LOAD_CONF define which will cause
3544 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3545 This allows older applications to transparently support certain
3546 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3547 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3548 load the config file and OPENSSL_add_all_algorithms_conf() which will
3549 always load it have also been added.
3552 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3553 Adjust NIDs and EVP layer.
3554 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3556 *) Config modules support in openssl utility.
3558 Most commands now load modules from the config file,
3559 though in a few (such as version) this isn't done
3560 because it couldn't be used for anything.
3562 In the case of ca and req the config file used is
3563 the same as the utility itself: that is the -config
3564 command line option can be used to specify an
3568 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3569 use "openssl_conf" if filename is NULL use default openssl config file.
3572 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3573 config section name. Add a new flag to tolerate a missing config file
3574 and move code to CONF_modules_load_file().
3577 *) Support for crypto accelerator cards from Accelerated Encryption
3578 Processing, www.aep.ie. (Use engine 'aep')
3579 The support was copied from 0.9.6c [engine] and adapted/corrected
3580 to work with the new engine framework.
3581 [AEP Inc. and Richard Levitte]
3583 *) Support for SureWare crypto accelerator cards from Baltimore
3584 Technologies. (Use engine 'sureware')
3585 The support was copied from 0.9.6c [engine] and adapted
3586 to work with the new engine framework.
3589 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3590 make the newer ENGINE framework commands for the CHIL engine work.
3591 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3593 *) Make it possible to produce shared libraries on ReliantUNIX.
3594 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3596 *) Add the configuration target debug-linux-ppro.
3597 Make 'openssl rsa' use the general key loading routines
3598 implemented in apps.c, and make those routines able to
3599 handle the key format FORMAT_NETSCAPE and the variant
3601 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3603 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3604 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3606 *) Add -keyform to rsautl, and document -engine.
3607 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3609 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3610 BIO_R_NO_SUCH_FILE error code rather than the generic
3611 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3614 *) Add new functions
3616 ERR_peek_last_error_line
3617 ERR_peek_last_error_line_data.
3618 These are similar to
3621 ERR_peek_error_line_data,
3622 but report on the latest error recorded rather than the first one
3623 still in the error queue.
3624 [Ben Laurie, Bodo Moeller]
3626 *) default_algorithms option in ENGINE config module. This allows things
3628 default_algorithms = ALL
3629 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3632 *) Prelminary ENGINE config module.
3635 *) New experimental application configuration code.
3638 *) Change the AES code to follow the same name structure as all other
3639 symmetric ciphers, and behave the same way. Move everything to
3640 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3641 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3643 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3644 [Ben Laurie and Theo de Raadt]
3646 *) Add option to output public keys in req command.
3647 [Massimiliano Pala madwolf@openca.org]
3649 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3650 (up to about 10% better than before for P-192 and P-224).
3653 *) New functions/macros
3655 SSL_CTX_set_msg_callback(ctx, cb)
3656 SSL_CTX_set_msg_callback_arg(ctx, arg)
3657 SSL_set_msg_callback(ssl, cb)
3658 SSL_set_msg_callback_arg(ssl, arg)
3660 to request calling a callback function
3662 void cb(int write_p, int version, int content_type,
3663 const void *buf, size_t len, SSL *ssl, void *arg)
3665 whenever a protocol message has been completely received
3666 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3667 protocol version according to which the SSL library interprets
3668 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3669 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3670 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3671 specification (change_cipher_spec(20), alert(21), handshake(22)).
3672 'buf' and 'len' point to the actual message, 'ssl' to the
3673 SSL object, and 'arg' is the application-defined value set by
3674 SSL[_CTX]_set_msg_callback_arg().
3676 'openssl s_client' and 'openssl s_server' have new '-msg' options
3677 to enable a callback that displays all protocol messages.
3680 *) Change the shared library support so shared libraries are built as
3681 soon as the corresponding static library is finished, and thereby get
3682 openssl and the test programs linked against the shared library.
3683 This still only happens when the keyword "shard" has been given to
3684 the configuration scripts.
3686 NOTE: shared library support is still an experimental thing, and
3687 backward binary compatibility is still not guaranteed.
3688 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3690 *) Add support for Subject Information Access extension.
3691 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3693 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3694 additional bytes when new memory had to be allocated, not just
3695 when reusing an existing buffer.
3698 *) New command line and configuration option 'utf8' for the req command.
3699 This allows field values to be specified as UTF8 strings.
3702 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3703 runs for the former and machine-readable output for the latter.
3706 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3707 of the e-mail address in the DN (i.e., it will go into a certificate
3708 extension only). The new configuration file option 'email_in_dn = no'
3709 has the same effect.
3710 [Massimiliano Pala madwolf@openca.org]
3712 *) Change all functions with names starting with des_ to be starting
3713 with DES_ instead. Add wrappers that are compatible with libdes,
3714 but are named _ossl_old_des_*. Finally, add macros that map the
3715 des_* symbols to the corresponding _ossl_old_des_* if libdes
3716 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3717 desired, the des_* symbols will be mapped to DES_*, with one
3720 Since we provide two compatibility mappings, the user needs to
3721 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3722 compatibility is desired. The default (i.e., when that macro
3723 isn't defined) is OpenSSL 0.9.6c compatibility.
3725 There are also macros that enable and disable the support of old
3726 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3727 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3728 are defined, the default will apply: to support the old des routines.
3730 In either case, one must include openssl/des.h to get the correct
3731 definitions. Do not try to just include openssl/des_old.h, that
3734 NOTE: This is a major break of an old API into a new one. Software
3735 authors are encouraged to switch to the DES_ style functions. Some
3736 time in the future, des_old.h and the libdes compatibility functions
3737 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3738 default), and then completely removed.
3741 *) Test for certificates which contain unsupported critical extensions.
3742 If such a certificate is found during a verify operation it is
3743 rejected by default: this behaviour can be overridden by either
3744 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3745 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3746 X509_supported_extension() has also been added which returns 1 if a
3747 particular extension is supported.
3750 *) Modify the behaviour of EVP cipher functions in similar way to digests
3751 to retain compatibility with existing code.
3754 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3755 compatibility with existing code. In particular the 'ctx' parameter does
3756 not have to be to be initialized before the call to EVP_DigestInit() and
3757 it is tidied up after a call to EVP_DigestFinal(). New function
3758 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3759 EVP_MD_CTX_copy() changed to not require the destination to be
3760 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3761 requires the destination to be valid.
3763 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3764 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3767 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3768 so that complete 'Handshake' protocol structures are kept in memory
3769 instead of overwriting 'msg_type' and 'length' with 'body' data.
3772 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3773 [Massimo Santin via Richard Levitte]
3775 *) Major restructuring to the underlying ENGINE code. This includes
3776 reduction of linker bloat, separation of pure "ENGINE" manipulation
3777 (initialisation, etc) from functionality dealing with implementations
3778 of specific crypto iterfaces. This change also introduces integrated
3779 support for symmetric ciphers and digest implementations - so ENGINEs
3780 can now accelerate these by providing EVP_CIPHER and EVP_MD
3781 implementations of their own. This is detailed in crypto/engine/README
3782 as it couldn't be adequately described here. However, there are a few
3783 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3784 were changed in the original introduction of ENGINE code have now
3785 reverted back - the hooking from this code to ENGINE is now a good
3786 deal more passive and at run-time, operations deal directly with
3787 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3788 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3789 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3790 they were not being used by the framework as there is no concept of a
3791 BIGNUM_METHOD and they could not be generalised to the new
3792 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3793 ENGINE_cpy() has been removed as it cannot be consistently defined in
3797 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3800 *) Change mkdef.pl to sort symbols that get the same entry number,
3801 and make sure the automatically generated functions ERR_load_*
3802 become part of libeay.num as well.
3805 *) New function SSL_renegotiate_pending(). This returns true once
3806 renegotiation has been requested (either SSL_renegotiate() call
3807 or HelloRequest/ClientHello receveived from the peer) and becomes
3808 false once a handshake has been completed.
3809 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3810 sends a HelloRequest, but does not ensure that a handshake takes
3811 place. SSL_renegotiate_pending() is useful for checking if the
3812 client has followed the request.)
3815 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3816 By default, clients may request session resumption even during
3817 renegotiation (if session ID contexts permit); with this option,
3818 session resumption is possible only in the first handshake.
3820 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3821 more bits available for options that should not be part of
3822 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3825 *) Add some demos for certificate and certificate request creation.
3828 *) Make maximum certificate chain size accepted from the peer application
3829 settable (SSL*_get/set_max_cert_list()), as proposed by
3830 "Douglas E. Engert" <deengert@anl.gov>.
3833 *) Add support for shared libraries for Unixware-7
3834 (Boyd Lynn Gerber <gerberb@zenez.com>).
3837 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3838 be done prior to destruction. Use this to unload error strings from
3839 ENGINEs that load their own error strings. NB: This adds two new API
3840 functions to "get" and "set" this destroy handler in an ENGINE.
3843 *) Alter all existing ENGINE implementations (except "openssl" and
3844 "openbsd") to dynamically instantiate their own error strings. This
3845 makes them more flexible to be built both as statically-linked ENGINEs
3846 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3847 Also, add stub code to each that makes building them as self-contained
3848 shared-libraries easier (see README.ENGINE).
3851 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3852 implementations into applications that are completely implemented in
3853 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3854 commands that can be used to configure what shared-library to load and
3855 to control aspects of the way it is handled. Also, made an update to
3856 the README.ENGINE file that brings its information up-to-date and
3857 provides some information and instructions on the "dynamic" ENGINE
3858 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3861 *) Make it possible to unload ranges of ERR strings with a new
3862 "ERR_unload_strings" function.
3865 *) Add a copy() function to EVP_MD.
3868 *) Make EVP_MD routines take a context pointer instead of just the
3869 md_data void pointer.
3872 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3873 that the digest can only process a single chunk of data
3874 (typically because it is provided by a piece of
3875 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3876 is only going to provide a single chunk of data, and hence the
3877 framework needn't accumulate the data for oneshot drivers.
3880 *) As with "ERR", make it possible to replace the underlying "ex_data"
3881 functions. This change also alters the storage and management of global
3882 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3883 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3884 index counters. The API functions that use this state have been changed
3885 to take a "class_index" rather than pointers to the class's local STACK
3886 and counter, and there is now an API function to dynamically create new
3887 classes. This centralisation allows us to (a) plug a lot of the
3888 thread-safety problems that existed, and (b) makes it possible to clean
3889 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3890 such data would previously have always leaked in application code and
3891 workarounds were in place to make the memory debugging turn a blind eye
3892 to it. Application code that doesn't use this new function will still
3893 leak as before, but their memory debugging output will announce it now
3894 rather than letting it slide.
3896 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3897 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3898 has a return value to indicate success or failure.
3901 *) Make it possible to replace the underlying "ERR" functions such that the
3902 global state (2 LHASH tables and 2 locks) is only used by the "default"
3903 implementation. This change also adds two functions to "get" and "set"
3904 the implementation prior to it being automatically set the first time
3905 any other ERR function takes place. Ie. an application can call "get",
3906 pass the return value to a module it has just loaded, and that module
3907 can call its own "set" function using that value. This means the
3908 module's "ERR" operations will use (and modify) the error state in the
3909 application and not in its own statically linked copy of OpenSSL code.
3912 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3913 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3914 the operation, and provides a more encapsulated way for external code
3915 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3916 to use these functions rather than manually incrementing the counts.
3918 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3921 *) Add EVP test program.
3924 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3927 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3928 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3929 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3930 These allow a CRL to be built without having to access X509_CRL fields
3931 directly. Modify 'ca' application to use new functions.
3934 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3935 bug workarounds. Rollback attack detection is a security feature.
3936 The problem will only arise on OpenSSL servers when TLSv1 is not
3937 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3938 Software authors not wanting to support TLSv1 will have special reasons
3939 for their choice and can explicitly enable this option.
3940 [Bodo Moeller, Lutz Jaenicke]
3942 *) Rationalise EVP so it can be extended: don't include a union of
3943 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3944 (similar to those existing for EVP_CIPHER_CTX).
3949 EVP_MD_CTX_init(&md); /* new function call */
3950 EVP_DigestInit(&md, EVP_sha1());
3951 EVP_DigestUpdate(&md, in, len);
3952 EVP_DigestFinal(&md, out, NULL);
3953 EVP_MD_CTX_cleanup(&md); /* new function call */
3957 *) Make DES key schedule conform to the usual scheme, as well as
3958 correcting its structure. This means that calls to DES functions
3959 now have to pass a pointer to a des_key_schedule instead of a
3960 plain des_key_schedule (which was actually always a pointer
3963 des_key_schedule ks;
3965 des_set_key_checked(..., &ks);
3966 des_ncbc_encrypt(..., &ks, ...);
3968 (Note that a later change renames 'des_...' into 'DES_...'.)
3971 *) Initial reduction of linker bloat: the use of some functions, such as
3972 PEM causes large amounts of unused functions to be linked in due to
3973 poor organisation. For example pem_all.c contains every PEM function
3974 which has a knock on effect of linking in large amounts of (unused)
3975 ASN1 code. Grouping together similar functions and splitting unrelated
3976 functions prevents this.
3979 *) Cleanup of EVP macros.
3982 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3983 correct _ecb suffix.
3986 *) Add initial OCSP responder support to ocsp application. The
3987 revocation information is handled using the text based index
3988 use by the ca application. The responder can either handle
3989 requests generated internally, supplied in files (for example
3990 via a CGI script) or using an internal minimal server.
3993 *) Add configuration choices to get zlib compression for TLS.
3996 *) Changes to Kerberos SSL for RFC 2712 compliance:
3997 1. Implemented real KerberosWrapper, instead of just using
3998 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3999 2. Implemented optional authenticator field of KerberosWrapper.
4001 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4002 and authenticator structs; see crypto/krb5/.
4004 Generalized Kerberos calls to support multiple Kerberos libraries.
4005 [Vern Staats <staatsvr@asc.hpc.mil>,
4006 Jeffrey Altman <jaltman@columbia.edu>
4007 via Richard Levitte]
4009 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4010 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4011 values for each of the key sizes rather than having just
4012 parameters (and 'speed' generating keys each time).
4015 *) Speed up EVP routines.
4018 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4019 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4020 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4021 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4023 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4024 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4025 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4028 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4030 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4033 *) Added the OS2-EMX target.
4034 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4036 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4037 to support NCONF routines in extension code. New function CONF_set_nconf()
4038 to allow functions which take an NCONF to also handle the old LHASH
4039 structure: this means that the old CONF compatible routines can be
4040 retained (in particular wrt extensions) without having to duplicate the
4041 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4044 *) Enhance the general user interface with mechanisms for inner control
4045 and with possibilities to have yes/no kind of prompts.
4048 *) Change all calls to low level digest routines in the library and
4049 applications to use EVP. Add missing calls to HMAC_cleanup() and
4050 don't assume HMAC_CTX can be copied using memcpy().
4051 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4053 *) Add the possibility to control engines through control names but with
4054 arbitrary arguments instead of just a string.
4055 Change the key loaders to take a UI_METHOD instead of a callback
4056 function pointer. NOTE: this breaks binary compatibility with earlier
4057 versions of OpenSSL [engine].
4058 Adapt the nCipher code for these new conditions and add a card insertion
4062 *) Enhance the general user interface with mechanisms to better support
4063 dialog box interfaces, application-defined prompts, the possibility
4064 to use defaults (for example default passwords from somewhere else)
4065 and interrupts/cancellations.
4068 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4069 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4072 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4073 tidy up some unnecessarily weird code in 'sk_new()').
4074 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4076 *) Change the key loading routines for ENGINEs to use the same kind
4077 callback (pem_password_cb) as all other routines that need this
4081 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4082 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4083 than this minimum value is recommended.
4086 *) New random seeder for OpenVMS, using the system process statistics
4087 that are easily reachable.
4090 *) Windows apparently can't transparently handle global
4091 variables defined in DLLs. Initialisations such as:
4093 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4095 wont compile. This is used by the any applications that need to
4096 declare their own ASN1 modules. This was fixed by adding the option
4097 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4098 needed for static libraries under Win32.
4101 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4102 setting of purpose and trust fields. New X509_STORE trust and
4103 purpose functions and tidy up setting in other SSL functions.
4106 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4107 structure. These are inherited by X509_STORE_CTX when it is
4108 initialised. This allows various defaults to be set in the
4109 X509_STORE structure (such as flags for CRL checking and custom
4110 purpose or trust settings) for functions which only use X509_STORE_CTX
4111 internally such as S/MIME.
4113 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4114 trust settings if they are not set in X509_STORE. This allows X509_STORE
4115 purposes and trust (in S/MIME for example) to override any set by default.
4117 Add command line options for CRL checking to smime, s_client and s_server
4121 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4122 are set then the CRL is looked up in the X509_STORE structure and
4123 its validity and signature checked, then if the certificate is found
4124 in the CRL the verify fails with a revoked error.
4126 Various new CRL related callbacks added to X509_STORE_CTX structure.
4128 Command line options added to 'verify' application to support this.
4130 This needs some additional work, such as being able to handle multiple
4131 CRLs with different times, extension based lookup (rather than just
4132 by subject name) and ultimately more complete V2 CRL extension
4136 *) Add a general user interface API (crypto/ui/). This is designed
4137 to replace things like des_read_password and friends (backward
4138 compatibility functions using this new API are provided).
4139 The purpose is to remove prompting functions from the DES code
4140 section as well as provide for prompting through dialog boxes in
4141 a window system and the like.
4144 *) Add "ex_data" support to ENGINE so implementations can add state at a
4145 per-structure level rather than having to store it globally.
4148 *) Make it possible for ENGINE structures to be copied when retrieved by
4149 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4150 This causes the "original" ENGINE structure to act like a template,
4151 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4152 operational state can be localised to each ENGINE structure, despite the
4153 fact they all share the same "methods". New ENGINE structures returned in
4154 this case have no functional references and the return value is the single
4155 structural reference. This matches the single structural reference returned
4156 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4160 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4161 needs to match any other type at all we need to manually clear the
4165 *) Changes to the "openssl engine" utility to include;
4166 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4167 about an ENGINE's available control commands.
4168 - executing control commands from command line arguments using the
4169 '-pre' and '-post' switches. '-post' is only used if '-t' is
4170 specified and the ENGINE is successfully initialised. The syntax for
4171 the individual commands are colon-separated, for example;
4172 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4175 *) New dynamic control command support for ENGINEs. ENGINEs can now
4176 declare their own commands (numbers), names (strings), descriptions,
4177 and input types for run-time discovery by calling applications. A
4178 subset of these commands are implicitly classed as "executable"
4179 depending on their input type, and only these can be invoked through
4180 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4181 can be based on user input, config files, etc). The distinction is
4182 that "executable" commands cannot return anything other than a boolean
4183 result and can only support numeric or string input, whereas some
4184 discoverable commands may only be for direct use through
4185 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4186 pointers, or other custom uses. The "executable" commands are to
4187 support parameterisations of ENGINE behaviour that can be
4188 unambiguously defined by ENGINEs and used consistently across any
4189 OpenSSL-based application. Commands have been added to all the
4190 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4191 control over shared-library paths without source code alterations.
4194 *) Changed all ENGINE implementations to dynamically allocate their
4195 ENGINEs rather than declaring them statically. Apart from this being
4196 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4197 this also allows the implementations to compile without using the
4198 internal engine_int.h header.
4201 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4202 'const' value. Any code that should be able to modify a RAND_METHOD
4203 should already have non-const pointers to it (ie. they should only
4204 modify their own ones).
4207 *) Made a variety of little tweaks to the ENGINE code.
4208 - "atalla" and "ubsec" string definitions were moved from header files
4209 to C code. "nuron" string definitions were placed in variables
4210 rather than hard-coded - allowing parameterisation of these values
4211 later on via ctrl() commands.
4212 - Removed unused "#if 0"'d code.
4213 - Fixed engine list iteration code so it uses ENGINE_free() to release
4214 structural references.
4215 - Constified the RAND_METHOD element of ENGINE structures.
4216 - Constified various get/set functions as appropriate and added
4217 missing functions (including a catch-all ENGINE_cpy that duplicates
4218 all ENGINE values onto a new ENGINE except reference counts/state).
4219 - Removed NULL parameter checks in get/set functions. Setting a method
4220 or function to NULL is a way of cancelling out a previously set
4221 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4222 and doesn't justify the extra error symbols and code.
4223 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4224 flags from engine_int.h to engine.h.
4225 - Changed prototypes for ENGINE handler functions (init(), finish(),
4226 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4229 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4230 to the algorithm using long division. The binary algorithm can be
4231 used only if the modulus is odd. On 32-bit systems, it is faster
4232 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4233 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4234 up to 450 bits. In 64-bit environments, the binary algorithm
4235 appears to be advantageous for much longer moduli; here we use it
4236 for moduli up to 2048 bits.
4239 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4240 could not support the combine flag in choice fields.
4243 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4244 extensions from a certificate request to the certificate.
4247 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4248 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4249 file: this allows the display of the certificate about to be
4250 signed to be customised, to allow certain fields to be included
4251 or excluded and extension details. The old system didn't display
4252 multicharacter strings properly, omitted fields not in the policy
4253 and couldn't display additional details such as extensions.
4256 *) Function EC_POINTs_mul for multiple scalar multiplication
4257 of an arbitrary number of elliptic curve points
4258 \sum scalars[i]*points[i],
4259 optionally including the generator defined for the EC_GROUP:
4260 scalar*generator + \sum scalars[i]*points[i].
4262 EC_POINT_mul is a simple wrapper function for the typical case
4263 that the point list has just one item (besides the optional
4267 *) First EC_METHODs for curves over GF(p):
4269 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4270 operations and provides various method functions that can also
4271 operate with faster implementations of modular arithmetic.
4273 EC_GFp_mont_method() reuses most functions that are part of
4274 EC_GFp_simple_method, but uses Montgomery arithmetic.
4276 [Bodo Moeller; point addition and point doubling
4277 implementation directly derived from source code provided by
4278 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4280 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4281 crypto/ec/ec_lib.c):
4283 Curves are EC_GROUP objects (with an optional group generator)
4284 based on EC_METHODs that are built into the library.
4286 Points are EC_POINT objects based on EC_GROUP objects.
4288 Most of the framework would be able to handle curves over arbitrary
4289 finite fields, but as there are no obvious types for fields other
4290 than GF(p), some functions are limited to that for now.
4293 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4294 that the file contains a complete HTTP response.
4297 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4298 change the def and num file printf format specifier from "%-40sXXX"
4299 to "%-39s XXX". The latter will always guarantee a space after the
4300 field while the former will cause them to run together if the field
4301 is 40 of more characters long.
4304 *) Constify the cipher and digest 'method' functions and structures
4305 and modify related functions to take constant EVP_MD and EVP_CIPHER
4309 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4310 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4313 *) Modify EVP_Digest*() routines so they now return values. Although the
4314 internal software routines can never fail additional hardware versions
4318 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4320 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4321 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4324 ERR_R_NESTED_ASN1_ERROR
4326 ERR_R_MISSING_ASN1_EOS
4327 were 4 .. 9, conflicting with
4328 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4330 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4331 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4333 Add new error code 'ERR_R_INTERNAL_ERROR'.
4336 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4340 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4341 sets the subject name for a new request or supersedes the
4342 subject name in a given request. Formats that can be parsed are
4343 'CN=Some Name, OU=myOU, C=IT'
4345 'CN=Some Name/OU=myOU/C=IT'.
4347 Add options '-batch' and '-verbose' to 'openssl req'.
4348 [Massimiliano Pala <madwolf@hackmasters.net>]
4350 *) Introduce the possibility to access global variables through
4351 functions on platform were that's the best way to handle exporting
4352 global variables in shared libraries. To enable this functionality,
4353 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4354 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4355 is normally done by Configure or something similar).
4357 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4358 in the source file (foo.c) like this:
4360 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4361 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4363 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4364 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4366 OPENSSL_DECLARE_GLOBAL(int,foo);
4367 #define foo OPENSSL_GLOBAL_REF(foo)
4368 OPENSSL_DECLARE_GLOBAL(double,bar);
4369 #define bar OPENSSL_GLOBAL_REF(bar)
4371 The #defines are very important, and therefore so is including the
4372 header file everywhere where the defined globals are used.
4374 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4375 of ASN.1 items, but that structure is a bit different.
4377 The largest change is in util/mkdef.pl which has been enhanced with
4378 better and easier to understand logic to choose which symbols should
4379 go into the Windows .def files as well as a number of fixes and code
4380 cleanup (among others, algorithm keywords are now sorted
4381 lexicographically to avoid constant rewrites).
4384 *) In BN_div() keep a copy of the sign of 'num' before writing the
4385 result to 'rm' because if rm==num the value will be overwritten
4386 and produce the wrong result if 'num' is negative: this caused
4387 problems with BN_mod() and BN_nnmod().
4390 *) Function OCSP_request_verify(). This checks the signature on an
4391 OCSP request and verifies the signer certificate. The signer
4392 certificate is just checked for a generic purpose and OCSP request
4396 *) Add OCSP_check_validity() function to check the validity of OCSP
4397 responses. OCSP responses are prepared in real time and may only
4398 be a few seconds old. Simply checking that the current time lies
4399 between thisUpdate and nextUpdate max reject otherwise valid responses
4400 caused by either OCSP responder or client clock inaccuracy. Instead
4401 we allow thisUpdate and nextUpdate to fall within a certain period of
4402 the current time. The age of the response can also optionally be
4403 checked. Two new options -validity_period and -status_age added to
4407 *) If signature or public key algorithm is unrecognized print out its
4408 OID rather that just UNKNOWN.
4411 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4412 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4413 ID to be generated from the issuer certificate alone which can then be
4414 passed to OCSP_id_issuer_cmp().
4417 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4418 ASN1 modules to export functions returning ASN1_ITEM pointers
4419 instead of the ASN1_ITEM structures themselves. This adds several
4420 new macros which allow the underlying ASN1 function/structure to
4421 be accessed transparently. As a result code should not use ASN1_ITEM
4422 references directly (such as &X509_it) but instead use the relevant
4423 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4424 use of the new ASN1 code on platforms where exporting structures
4425 is problematical (for example in shared libraries) but exporting
4426 functions returning pointers to structures is not.
4429 *) Add support for overriding the generation of SSL/TLS session IDs.
4430 These callbacks can be registered either in an SSL_CTX or per SSL.
4431 The purpose of this is to allow applications to control, if they wish,
4432 the arbitrary values chosen for use as session IDs, particularly as it
4433 can be useful for session caching in multiple-server environments. A
4434 command-line switch for testing this (and any client code that wishes
4435 to use such a feature) has been added to "s_server".
4436 [Geoff Thorpe, Lutz Jaenicke]
4438 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4439 of the form '#if defined(...) || defined(...) || ...' and
4440 '#if !defined(...) && !defined(...) && ...'. This also avoids
4441 the growing number of special cases it was previously handling.
4444 *) Make all configuration macros available for application by making
4445 sure they are available in opensslconf.h, by giving them names starting
4446 with "OPENSSL_" to avoid conflicts with other packages and by making
4447 sure e_os2.h will cover all platform-specific cases together with
4449 Additionally, it is now possible to define configuration/platform-
4450 specific names (called "system identities"). In the C code, these
4451 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4452 macro with the name beginning with "OPENSSL_SYS_", which is determined
4453 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4457 *) New option -set_serial to 'req' and 'x509' this allows the serial
4458 number to use to be specified on the command line. Previously self
4459 signed certificates were hard coded with serial number 0 and the
4460 CA options of 'x509' had to use a serial number in a file which was
4464 *) New options to 'ca' utility to support V2 CRL entry extensions.
4465 Currently CRL reason, invalidity date and hold instruction are
4466 supported. Add new CRL extensions to V3 code and some new objects.
4469 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4470 disable standard block padding (aka PKCS#5 padding) in the EVP
4471 API, which was previously mandatory. This means that the data is
4472 not padded in any way and so the total length much be a multiple
4473 of the block size, otherwise an error occurs.
4476 *) Initial (incomplete) OCSP SSL support.
4479 *) New function OCSP_parse_url(). This splits up a URL into its host,
4480 port and path components: primarily to parse OCSP URLs. New -url
4481 option to ocsp utility.
4484 *) New nonce behavior. The return value of OCSP_check_nonce() now
4485 reflects the various checks performed. Applications can decide
4486 whether to tolerate certain situations such as an absent nonce
4487 in a response when one was present in a request: the ocsp application
4488 just prints out a warning. New function OCSP_add1_basic_nonce()
4489 this is to allow responders to include a nonce in a response even if
4490 the request is nonce-less.
4493 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4494 skipped when using openssl x509 multiple times on a single input file,
4495 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4498 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4499 set string type: to handle setting ASN1_TIME structures. Fix ca
4500 utility to correctly initialize revocation date of CRLs.
4503 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4504 the clients preferred ciphersuites and rather use its own preferences.
4505 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4506 Internet Explorer by ensuring unchanged hash method during stepup.
4507 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4510 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4511 to aes and add a new 'exist' option to print out symbols that don't
4515 *) Additional options to ocsp utility to allow flags to be set and
4516 additional certificates supplied.
4519 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4520 OCSP client a number of certificate to only verify the response
4524 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4525 handle the new API. Currently only ECB, CBC modes supported. Add new
4528 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4529 Encryption Standard (AES) Ciphersuites for Transport Layer
4530 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4531 not enabled by default and were not part of the "ALL" ciphersuite
4532 alias because they were not yet official; they could be
4533 explicitly requested by specifying the "AESdraft" ciphersuite
4534 group alias. In the final release of OpenSSL 0.9.7, the group
4535 alias is called "AES" and is part of "ALL".)
4536 [Ben Laurie, Steve Henson, Bodo Moeller]
4538 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4539 request to response.
4542 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4543 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4544 extract information from a certificate request. OCSP_response_create()
4545 creates a response and optionally adds a basic response structure.
4546 OCSP_basic_add1_status() adds a complete single response to a basic
4547 response and returns the OCSP_SINGLERESP structure just added (to allow
4548 extensions to be included for example). OCSP_basic_add1_cert() adds a
4549 certificate to a basic response and OCSP_basic_sign() signs a basic
4550 response with various flags. New helper functions ASN1_TIME_check()
4551 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4552 (converts ASN1_TIME to GeneralizedTime).
4555 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4556 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4557 structure from a certificate. X509_pubkey_digest() digests the public_key
4558 contents: this is used in various key identifiers.
4561 *) Make sk_sort() tolerate a NULL argument.
4562 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4564 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4565 passed by the function are trusted implicitly. If any of them signed the
4566 response then it is assumed to be valid and is not verified.
4569 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4570 to data. This was previously part of the PKCS7 ASN1 code. This
4571 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4572 [Steve Henson, reported by Kenneth R. Robinette
4573 <support@securenetterm.com>]
4575 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4576 routines: without these tracing memory leaks is very painful.
4577 Fix leaks in PKCS12 and PKCS7 routines.
4580 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4581 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4582 effectively meant GeneralizedTime would never be used. Now it
4583 is initialised to -1 but X509_time_adj() now has to check the value
4584 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4585 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4586 [Steve Henson, reported by Kenneth R. Robinette
4587 <support@securenetterm.com>]
4589 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4590 result in a zero length in the ASN1_INTEGER structure which was
4591 not consistent with the structure when d2i_ASN1_INTEGER() was used
4592 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4593 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4594 where it did not print out a minus for negative ASN1_INTEGER.
4597 *) Add summary printout to ocsp utility. The various functions which
4598 convert status values to strings have been renamed to:
4599 OCSP_response_status_str(), OCSP_cert_status_str() and
4600 OCSP_crl_reason_str() and are no longer static. New options
4601 to verify nonce values and to disable verification. OCSP response
4602 printout format cleaned up.
4605 *) Add additional OCSP certificate checks. These are those specified
4606 in RFC2560. This consists of two separate checks: the CA of the
4607 certificate being checked must either be the OCSP signer certificate
4608 or the issuer of the OCSP signer certificate. In the latter case the
4609 OCSP signer certificate must contain the OCSP signing extended key
4610 usage. This check is performed by attempting to match the OCSP
4611 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4612 in the OCSP_CERTID structures of the response.
4615 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4616 and related routines. This uses the standard OpenSSL certificate
4617 verify routines to perform initial checks (just CA validity) and
4618 to obtain the certificate chain. Then additional checks will be
4619 performed on the chain. Currently the root CA is checked to see
4620 if it is explicitly trusted for OCSP signing. This is used to set
4621 a root CA as a global signing root: that is any certificate that
4622 chains to that CA is an acceptable OCSP signing certificate.
4625 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4626 extensions from a separate configuration file.
4627 As when reading extensions from the main configuration file,
4628 the '-extensions ...' option may be used for specifying the
4630 [Massimiliano Pala <madwolf@comune.modena.it>]
4632 *) New OCSP utility. Allows OCSP requests to be generated or
4633 read. The request can be sent to a responder and the output
4634 parsed, outputed or printed in text form. Not complete yet:
4635 still needs to check the OCSP response validity.
4638 *) New subcommands for 'openssl ca':
4639 'openssl ca -status <serial>' prints the status of the cert with
4640 the given serial number (according to the index file).
4641 'openssl ca -updatedb' updates the expiry status of certificates
4643 [Massimiliano Pala <madwolf@comune.modena.it>]
4645 *) New '-newreq-nodes' command option to CA.pl. This is like
4646 '-newreq', but calls 'openssl req' with the '-nodes' option
4647 so that the resulting key is not encrypted.
4648 [Damien Miller <djm@mindrot.org>]
4650 *) New configuration for the GNU Hurd.
4651 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4653 *) Initial code to implement OCSP basic response verify. This
4654 is currently incomplete. Currently just finds the signer's
4655 certificate and verifies the signature on the response.
4658 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4659 value of OPENSSLDIR. This is available via the new '-d' option
4660 to 'openssl version', and is also included in 'openssl version -a'.
4663 *) Allowing defining memory allocation callbacks that will be given
4664 file name and line number information in additional arguments
4665 (a const char* and an int). The basic functionality remains, as
4666 well as the original possibility to just replace malloc(),
4667 realloc() and free() by functions that do not know about these
4668 additional arguments. To register and find out the current
4669 settings for extended allocation functions, the following
4670 functions are provided:
4672 CRYPTO_set_mem_ex_functions
4673 CRYPTO_set_locked_mem_ex_functions
4674 CRYPTO_get_mem_ex_functions
4675 CRYPTO_get_locked_mem_ex_functions
4677 These work the same way as CRYPTO_set_mem_functions and friends.
4678 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4679 extended allocation function is enabled.
4680 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4681 a conventional allocation function is enabled.
4682 [Richard Levitte, Bodo Moeller]
4684 *) Finish off removing the remaining LHASH function pointer casts.
4685 There should no longer be any prototype-casting required when using
4686 the LHASH abstraction, and any casts that remain are "bugs". See
4687 the callback types and macros at the head of lhash.h for details
4688 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4691 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4692 If /dev/[u]random devices are not available or do not return enough
4693 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4695 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4696 /etc/entropy will be queried once each in this sequence, quering stops
4697 when enough entropy was collected without querying more sockets.
4700 *) Change the Unix RAND_poll() variant to be able to poll several
4701 random devices, as specified by DEVRANDOM, until a sufficient amount
4702 of data has been collected. We spend at most 10 ms on each file
4703 (select timeout) and read in non-blocking mode. DEVRANDOM now
4704 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4705 (previously it was just the string "/dev/urandom"), so on typical
4706 platforms the 10 ms delay will never occur.
4707 Also separate out the Unix variant to its own file, rand_unix.c.
4708 For VMS, there's a currently-empty rand_vms.c.
4711 *) Move OCSP client related routines to ocsp_cl.c. These
4712 provide utility functions which an application needing
4713 to issue a request to an OCSP responder and analyse the
4714 response will typically need: as opposed to those which an
4715 OCSP responder itself would need which will be added later.
4717 OCSP_request_sign() signs an OCSP request with an API similar
4718 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4719 response. OCSP_response_get1_basic() extracts basic response
4720 from response. OCSP_resp_find_status(): finds and extracts status
4721 information from an OCSP_CERTID structure (which will be created
4722 when the request structure is built). These are built from lower
4723 level functions which work on OCSP_SINGLERESP structures but
4724 wont normally be used unless the application wishes to examine
4725 extensions in the OCSP response for example.
4727 Replace nonce routines with a pair of functions.
4728 OCSP_request_add1_nonce() adds a nonce value and optionally
4729 generates a random value. OCSP_check_nonce() checks the
4730 validity of the nonce in an OCSP response.
4733 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4734 This doesn't copy the supplied OCSP_CERTID and avoids the
4735 need to free up the newly created id. Change return type
4736 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4737 This can then be used to add extensions to the request.
4738 Deleted OCSP_request_new(), since most of its functionality
4739 is now in OCSP_REQUEST_new() (and the case insensitive name
4740 clash) apart from the ability to set the request name which
4741 will be added elsewhere.
4744 *) Update OCSP API. Remove obsolete extensions argument from
4745 various functions. Extensions are now handled using the new
4746 OCSP extension code. New simple OCSP HTTP function which
4747 can be used to send requests and parse the response.
4750 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4751 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4752 uses the special reorder version of SET OF to sort the attributes
4753 and reorder them to match the encoded order. This resolves a long
4754 standing problem: a verify on a PKCS7 structure just after signing
4755 it used to fail because the attribute order did not match the
4756 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4757 it uses the received order. This is necessary to tolerate some broken
4758 software that does not order SET OF. This is handled by encoding
4759 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4760 to produce the required SET OF.
4763 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4764 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4765 files to get correct declarations of the ASN.1 item variables.
4768 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4769 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4770 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4771 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4772 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4773 ASN1_ITEM and no wrapper functions.
4776 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4777 replace the old function pointer based I/O routines. Change most of
4778 the *_d2i_bio() and *_d2i_fp() functions to use these.
4781 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4782 lines, recognice more "algorithms" that can be deselected, and make
4783 it complain about algorithm deselection that isn't recognised.
4786 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4787 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4788 to use new functions. Add NO_ASN1_OLD which can be set to remove
4789 some old style ASN1 functions: this can be used to determine if old
4790 code will still work when these eventually go away.
4793 *) New extension functions for OCSP structures, these follow the
4794 same conventions as certificates and CRLs.
4797 *) New function X509V3_add1_i2d(). This automatically encodes and
4798 adds an extension. Its behaviour can be customised with various
4799 flags to append, replace or delete. Various wrappers added for
4800 certifcates and CRLs.
4803 *) Fix to avoid calling the underlying ASN1 print routine when
4804 an extension cannot be parsed. Correct a typo in the
4805 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4808 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4809 entries for variables.
4812 *) Add functionality to apps/openssl.c for detecting locking
4813 problems: As the program is single-threaded, all we have
4814 to do is register a locking callback using an array for
4815 storing which locks are currently held by the program.
4818 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4819 SSL_get_ex_data_X509_STORE_idx(), which is used in
4820 ssl_verify_cert_chain() and thus can be called at any time
4821 during TLS/SSL handshakes so that thread-safety is essential.
4822 Unfortunately, the ex_data design is not at all suited
4823 for multi-threaded use, so it probably should be abolished.
4826 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4827 [Broadcom, tweaked and integrated by Geoff Thorpe]
4829 *) Move common extension printing code to new function
4830 X509V3_print_extensions(). Reorganise OCSP print routines and
4831 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4834 *) New function X509_signature_print() to remove duplication in some
4838 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4839 set (this was treated exactly the same as SET OF previously). This
4840 is used to reorder the STACK representing the structure to match the
4841 encoding. This will be used to get round a problem where a PKCS7
4842 structure which was signed could not be verified because the STACK
4843 order did not reflect the encoded order.
4846 *) Reimplement the OCSP ASN1 module using the new code.
4849 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4850 for its ASN1 operations. The old style function pointers still exist
4851 for now but they will eventually go away.
4854 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4855 completely replaces the old ASN1 functionality with a table driven
4856 encoder and decoder which interprets an ASN1_ITEM structure describing
4857 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4858 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4859 has also been converted to the new form.
4862 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4863 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4864 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4865 for negative moduli.
4868 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4869 of not touching the result's sign bit.
4872 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4876 *) Changed the LHASH code to use prototypes for callbacks, and created
4877 macros to declare and implement thin (optionally static) functions
4878 that provide type-safety and avoid function pointer casting for the
4879 type-specific callbacks.
4882 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4884 [Veers Staats <staatsvr@asc.hpc.mil>,
4885 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4887 *) Reformat the FAQ so the different questions and answers can be divided
4888 in sections depending on the subject.
4891 *) Have the zlib compression code load ZLIB.DLL dynamically under
4895 *) New function BN_mod_sqrt for computing square roots modulo a prime
4896 (using the probabilistic Tonelli-Shanks algorithm unless
4897 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4898 be handled deterministically).
4899 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4901 *) Make BN_mod_inverse faster by explicitly handling small quotients
4902 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4903 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4906 *) New function BN_kronecker.
4909 *) Fix BN_gcd so that it works on negative inputs; the result is
4910 positive unless both parameters are zero.
4911 Previously something reasonably close to an infinite loop was
4912 possible because numbers could be growing instead of shrinking
4913 in the implementation of Euclid's algorithm.
4916 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4917 sign of the number in question.
4919 Fix BN_is_word(a,w) to work correctly for w == 0.
4921 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4922 because its test if the absolute value of 'a' equals 'w'.
4923 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4924 it exists mostly for use in the implementations of BN_is_zero(),
4925 BN_is_one(), and BN_is_word().
4928 *) New function BN_swap.
4931 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4932 the exponentiation functions are more likely to produce reasonable
4933 results on negative inputs.
4936 *) Change BN_mod_mul so that the result is always non-negative.
4937 Previously, it could be negative if one of the factors was negative;
4938 I don't think anyone really wanted that behaviour.
4941 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4942 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4943 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4944 and add new functions:
4953 BN_mod_lshift1_quick
4957 These functions always generate non-negative results.
4959 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4960 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4962 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4963 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4964 be reduced modulo m.
4965 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4968 The following entry accidentily appeared in the CHANGES file
4969 distributed with OpenSSL 0.9.7. The modifications described in
4970 it do *not* apply to OpenSSL 0.9.7.
4972 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4973 was actually never needed) and in BN_mul(). The removal in BN_mul()
4974 required a small change in bn_mul_part_recursive() and the addition
4975 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4976 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4977 bn_sub_words() and bn_add_words() except they take arrays with
4982 *) In 'openssl passwd', verify passwords read from the terminal
4983 unless the '-salt' option is used (which usually means that
4984 verification would just waste user's time since the resulting
4985 hash is going to be compared with some given password hash)
4986 or the new '-noverify' option is used.
4988 This is an incompatible change, but it does not affect
4989 non-interactive use of 'openssl passwd' (passwords on the command
4990 line, '-stdin' option, '-in ...' option) and thus should not
4994 *) Remove all references to RSAref, since there's no more need for it.
4997 *) Make DSO load along a path given through an environment variable
4998 (SHLIB_PATH) with shl_load().
5001 *) Constify the ENGINE code as a result of BIGNUM constification.
5002 Also constify the RSA code and most things related to it. In a
5003 few places, most notable in the depth of the ASN.1 code, ugly
5004 casts back to non-const were required (to be solved at a later
5008 *) Make it so the openssl application has all engines loaded by default.
5011 *) Constify the BIGNUM routines a little more.
5014 *) Add the following functions:
5016 ENGINE_load_cswift()
5018 ENGINE_load_atalla()
5020 ENGINE_load_builtin_engines()
5022 That way, an application can itself choose if external engines that
5023 are built-in in OpenSSL shall ever be used or not. The benefit is
5024 that applications won't have to be linked with libdl or other dso
5025 libraries unless it's really needed.
5027 Changed 'openssl engine' to load all engines on demand.
5028 Changed the engine header files to avoid the duplication of some
5029 declarations (they differed!).
5032 *) 'openssl engine' can now list capabilities.
5035 *) Better error reporting in 'openssl engine'.
5038 *) Never call load_dh_param(NULL) in s_server.
5041 *) Add engine application. It can currently list engines by name and
5042 identity, and test if they are actually available.
5045 *) Improve RPM specification file by forcing symbolic linking and making
5046 sure the installed documentation is also owned by root.root.
5047 [Damien Miller <djm@mindrot.org>]
5049 *) Give the OpenSSL applications more possibilities to make use of
5050 keys (public as well as private) handled by engines.
5053 *) Add OCSP code that comes from CertCo.
5056 *) Add VMS support for the Rijndael code.
5059 *) Added untested support for Nuron crypto accelerator.
5062 *) Add support for external cryptographic devices. This code was
5063 previously distributed separately as the "engine" branch.
5064 [Geoff Thorpe, Richard Levitte]
5066 *) Rework the filename-translation in the DSO code. It is now possible to
5067 have far greater control over how a "name" is turned into a filename
5068 depending on the operating environment and any oddities about the
5069 different shared library filenames on each system.
5072 *) Support threads on FreeBSD-elf in Configure.
5075 *) Fix for SHA1 assembly problem with MASM: it produces
5076 warnings about corrupt line number information when assembling
5077 with debugging information. This is caused by the overlapping
5079 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5082 NCONF_get_number() has no error checking at all. As a replacement,
5083 NCONF_get_number_e() is defined (_e for "error checking") and is
5084 promoted strongly. The old NCONF_get_number is kept around for
5085 binary backward compatibility.
5086 Make it possible for methods to load from something other than a BIO,
5087 by providing a function pointer that is given a name instead of a BIO.
5088 For example, this could be used to load configuration data from an
5092 *) Fix for non blocking accept BIOs. Added new I/O special reason
5093 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5094 with non blocking I/O was not possible because no retry code was
5095 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5099 *) Added the beginnings of Rijndael support.
5102 *) Fix for bug in DirectoryString mask setting. Add support for
5103 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5104 to allow certificate printing to more controllable, additional
5105 'certopt' option to 'x509' to allow new printing options to be
5109 *) Clean old EAY MD5 hack from e_os.h.
5112 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5114 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5115 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5116 [Joe Orton, Steve Henson]
5118 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5120 *) Fix additional bug revealed by the NISCC test suite:
5122 Stop bug triggering large recursion when presented with
5123 certain ASN.1 tags (CVE-2003-0851)
5126 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5128 *) Fix various bugs revealed by running the NISCC test suite:
5130 Stop out of bounds reads in the ASN1 code when presented with
5131 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5133 If verify callback ignores invalid public key errors don't try to check
5134 certificate signature with the NULL public key.
5138 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5139 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5143 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5144 extra data after the compression methods not only for TLS 1.0
5145 but also for SSL 3.0 (as required by the specification).
5146 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5148 *) Change X509_certificate_type() to mark the key as exported/exportable
5149 when it's 512 *bits* long, not 512 bytes.
5152 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5154 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5155 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5156 a protocol version number mismatch like a decryption error
5157 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5160 *) Turn on RSA blinding by default in the default implementation
5161 to avoid a timing attack. Applications that don't want it can call
5162 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5163 They would be ill-advised to do so in most cases.
5164 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5166 *) Change RSA blinding code so that it works when the PRNG is not
5167 seeded (in this case, the secret RSA exponent is abused as
5168 an unpredictable seed -- if it is not unpredictable, there
5169 is no point in blinding anyway). Make RSA blinding thread-safe
5170 by remembering the creator's thread ID in rsa->blinding and
5171 having all other threads use local one-time blinding factors
5172 (this requires more computation than sharing rsa->blinding, but
5173 avoids excessive locking; and if an RSA object is not shared
5174 between threads, blinding will still be very fast).
5177 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5179 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5180 via timing by performing a MAC computation even if incorrrect
5181 block cipher padding has been found. This is a countermeasure
5182 against active attacks where the attacker has to distinguish
5183 between bad padding and a MAC verification error. (CVE-2003-0078)
5185 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5186 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5187 Martin Vuagnoux (EPFL, Ilion)]
5189 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5191 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5192 memory from it's contents. This is done with a counter that will
5193 place alternating values in each byte. This can be used to solve
5194 two issues: 1) the removal of calls to memset() by highly optimizing
5195 compilers, and 2) cleansing with other values than 0, since those can
5196 be read through on certain media, for example a swap space on disk.
5199 *) Bugfix: client side session caching did not work with external caching,
5200 because the session->cipher setting was not restored when reloading
5201 from the external cache. This problem was masked, when
5202 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5203 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5206 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5207 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5208 [Zeev Lieber <zeev-l@yahoo.com>]
5210 *) Undo an undocumented change introduced in 0.9.6e which caused
5211 repeated calls to OpenSSL_add_all_ciphers() and
5212 OpenSSL_add_all_digests() to be ignored, even after calling
5216 *) Change the default configuration reader to deal with last line not
5217 being properly terminated.
5220 *) Change X509_NAME_cmp() so it applies the special rules on handling
5221 DN values that are of type PrintableString, as well as RDNs of type
5222 emailAddress where the value has the type ia5String.
5223 [stefank@valicert.com via Richard Levitte]
5225 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5226 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5227 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5228 the bitwise-OR of the two for use by the majority of applications
5229 wanting this behaviour, and update the docs. The documented
5230 behaviour and actual behaviour were inconsistent and had been
5231 changing anyway, so this is more a bug-fix than a behavioural
5233 [Geoff Thorpe, diagnosed by Nadav Har'El]
5235 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5236 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5239 *) Fix initialization code race conditions in
5240 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5241 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5242 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5243 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5244 ssl2_get_cipher_by_char(),
5245 ssl3_get_cipher_by_char().
5246 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5248 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5249 the cached sessions are flushed, as the remove_cb() might use ex_data
5250 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5251 (see [openssl.org #212]).
5252 [Geoff Thorpe, Lutz Jaenicke]
5254 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5255 length, instead of the encoding length to d2i_ASN1_OBJECT.
5258 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5260 *) [In 0.9.6g-engine release:]
5261 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5262 [Lynn Gazis <lgazis@rainbow.com>]
5264 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5266 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5267 and get fix the header length calculation.
5268 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5269 Alon Kantor <alonk@checkpoint.com> (and others),
5272 *) Use proper error handling instead of 'assertions' in buffer
5273 overflow checks added in 0.9.6e. This prevents DoS (the
5274 assertions could call abort()).
5275 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5277 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5279 *) Add various sanity checks to asn1_get_length() to reject
5280 the ASN1 length bytes if they exceed sizeof(long), will appear
5281 negative or the content length exceeds the length of the
5283 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5285 *) Fix cipher selection routines: ciphers without encryption had no flags
5286 for the cipher strength set and where therefore not handled correctly
5287 by the selection routines (PR #130).
5290 *) Fix EVP_dsa_sha macro.
5294 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5295 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5296 that was added in OpenSSL 0.9.6d.
5298 As the countermeasure turned out to be incompatible with some
5299 broken SSL implementations, the new option is part of SSL_OP_ALL.
5300 SSL_OP_ALL is usually employed when compatibility with weird SSL
5301 implementations is desired (e.g. '-bugs' option to 's_client' and
5302 's_server'), so the new option is automatically set in many
5306 *) Changes in security patch:
5308 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5309 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5310 Air Force Materiel Command, USAF, under agreement number
5313 *) Add various sanity checks to asn1_get_length() to reject
5314 the ASN1 length bytes if they exceed sizeof(long), will appear
5315 negative or the content length exceeds the length of the
5316 supplied buffer. (CVE-2002-0659)
5317 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5319 *) Assertions for various potential buffer overflows, not known to
5321 [Ben Laurie (CHATS)]
5323 *) Various temporary buffers to hold ASCII versions of integers were
5324 too small for 64 bit platforms. (CVE-2002-0655)
5325 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5327 *) Remote buffer overflow in SSL3 protocol - an attacker could
5328 supply an oversized session ID to a client. (CVE-2002-0656)
5329 [Ben Laurie (CHATS)]
5331 *) Remote buffer overflow in SSL2 protocol - an attacker could
5332 supply an oversized client master key. (CVE-2002-0656)
5333 [Ben Laurie (CHATS)]
5335 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5337 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5338 encoded as NULL) with id-dsa-with-sha1.
5339 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5341 *) Check various X509_...() return values in apps/req.c.
5342 [Nils Larsch <nla@trustcenter.de>]
5344 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5345 an end-of-file condition would erronously be flagged, when the CRLF
5346 was just at the end of a processed block. The bug was discovered when
5347 processing data through a buffering memory BIO handing the data to a
5348 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5349 <ptsekov@syntrex.com> and Nedelcho Stanev.
5352 *) Implement a countermeasure against a vulnerability recently found
5353 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5354 before application data chunks to avoid the use of known IVs
5355 with data potentially chosen by the attacker.
5358 *) Fix length checks in ssl3_get_client_hello().
5361 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5362 to prevent ssl3_read_internal() from incorrectly assuming that
5363 ssl3_read_bytes() found application data while handshake
5364 processing was enabled when in fact s->s3->in_read_app_data was
5365 merely automatically cleared during the initial handshake.
5366 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5368 *) Fix object definitions for Private and Enterprise: they were not
5369 recognized in their shortname (=lowercase) representation. Extend
5370 obj_dat.pl to issue an error when using undefined keywords instead
5371 of silently ignoring the problem (Svenning Sorensen
5372 <sss@sss.dnsalias.net>).
5375 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5376 generators, i.e. generators other than 2 and 5. (Previously, the
5377 code did not properly initialise the 'add' and 'rem' values to
5378 BN_generate_prime().)
5380 In the new general case, we do not insist that 'generator' is
5381 actually a primitive root: This requirement is rather pointless;
5382 a generator of the order-q subgroup is just as good, if not
5386 *) Map new X509 verification errors to alerts. Discovered and submitted by
5387 Tom Wu <tom@arcot.com>.
5390 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5391 returning non-zero before the data has been completely received
5392 when using non-blocking I/O.
5393 [Bodo Moeller; problem pointed out by John Hughes]
5395 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5396 [Ben Laurie, Lutz Jaenicke]
5398 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5399 Yoram Zahavi <YoramZ@gilian.com>).
5402 *) Add information about CygWin 1.3 and on, and preserve proper
5403 configuration for the versions before that.
5404 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5406 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5407 check whether we deal with a copy of a session and do not delete from
5408 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5409 <izhar@checkpoint.com>.
5412 *) Do not store session data into the internal session cache, if it
5413 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5414 flag is set). Proposed by Aslam <aslam@funk.com>.
5417 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5421 *) [In 0.9.6d-engine release:]
5422 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5423 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5425 *) Add the configuration target linux-s390x.
5426 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5428 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5429 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5430 variable as an indication that a ClientHello message has been
5431 received. As the flag value will be lost between multiple
5432 invocations of ssl3_accept when using non-blocking I/O, the
5433 function may not be aware that a handshake has actually taken
5434 place, thus preventing a new session from being added to the
5437 To avoid this problem, we now set s->new_session to 2 instead of
5438 using a local variable.
5439 [Lutz Jaenicke, Bodo Moeller]
5441 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5442 if the SSL_R_LENGTH_MISMATCH error is detected.
5443 [Geoff Thorpe, Bodo Moeller]
5445 *) New 'shared_ldflag' column in Configure platform table.
5448 *) Fix EVP_CIPHER_mode macro.
5449 ["Dan S. Camper" <dan@bti.net>]
5451 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5452 type, we must throw them away by setting rr->length to 0.
5453 [D P Chang <dpc@qualys.com>]
5455 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5457 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5458 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5459 worked incorrectly for those cases where range = 10..._2 and
5460 3*range is two bits longer than range.)
5463 *) Only add signing time to PKCS7 structures if it is not already
5467 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5468 OBJ_ld_ce should be OBJ_id_ce.
5469 Also some ip-pda OIDs in crypto/objects/objects.txt were
5470 incorrect (cf. RFC 3039).
5471 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5473 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5474 returns early because it has nothing to do.
5475 [Andy Schneider <andy.schneider@bjss.co.uk>]
5477 *) [In 0.9.6c-engine release:]
5478 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5479 [Andy Schneider <andy.schneider@bjss.co.uk>]
5481 *) [In 0.9.6c-engine release:]
5482 Add support for Cryptographic Appliance's keyserver technology.
5483 (Use engine 'keyclient')
5484 [Cryptographic Appliances and Geoff Thorpe]
5486 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5487 is called via tools/c89.sh because arguments have to be
5488 rearranged (all '-L' options must appear before the first object
5490 [Richard Shapiro <rshapiro@abinitio.com>]
5492 *) [In 0.9.6c-engine release:]
5493 Add support for Broadcom crypto accelerator cards, backported
5495 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5497 *) [In 0.9.6c-engine release:]
5498 Add support for SureWare crypto accelerator cards from
5499 Baltimore Technologies. (Use engine 'sureware')
5500 [Baltimore Technologies and Mark Cox]
5502 *) [In 0.9.6c-engine release:]
5503 Add support for crypto accelerator cards from Accelerated
5504 Encryption Processing, www.aep.ie. (Use engine 'aep')
5505 [AEP Inc. and Mark Cox]
5507 *) Add a configuration entry for gcc on UnixWare.
5508 [Gary Benson <gbenson@redhat.com>]
5510 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5511 messages are stored in a single piece (fixed-length part and
5512 variable-length part combined) and fix various bugs found on the way.
5515 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5516 instead. BIO_gethostbyname() does not know what timeouts are
5517 appropriate, so entries would stay in cache even when they have
5519 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5521 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5522 faced with a pathologically small ClientHello fragment that does
5523 not contain client_version: Instead of aborting with an error,
5524 simply choose the highest available protocol version (i.e.,
5525 TLS 1.0 unless it is disabled). In practice, ClientHello
5526 messages are never sent like this, but this change gives us
5527 strictly correct behaviour at least for TLS.
5530 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5531 never resets s->method to s->ctx->method when called from within
5532 one of the SSL handshake functions.
5533 [Bodo Moeller; problem pointed out by Niko Baric]
5535 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5536 (sent using the client's version number) if client_version is
5537 smaller than the protocol version in use. Also change
5538 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5539 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5540 the client will at least see that alert.
5543 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5547 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5548 client receives HelloRequest while in a handshake.
5549 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5551 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5552 should end in 'break', not 'goto end' which circuments various
5553 cleanups done in state SSL_ST_OK. But session related stuff
5554 must be disabled for SSL_ST_OK in the case that we just sent a
5557 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5558 before just sending a HelloRequest.
5559 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5561 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5562 reveal whether illegal block cipher padding was found or a MAC
5563 verification error occured. (Neither SSLerr() codes nor alerts
5564 are directly visible to potential attackers, but the information
5565 may leak via logfiles.)
5567 Similar changes are not required for the SSL 2.0 implementation
5568 because the number of padding bytes is sent in clear for SSL 2.0,
5569 and the extra bytes are just ignored. However ssl/s2_pkt.c
5570 failed to verify that the purported number of padding bytes is in
5574 *) Add OpenUNIX-8 support including shared libraries
5575 (Boyd Lynn Gerber <gerberb@zenez.com>).
5578 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5579 'wristwatch attack' using huge encoding parameters (cf.
5580 James H. Manger's CRYPTO 2001 paper). Note that the
5581 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5582 encoding parameters and hence was not vulnerable.
5585 *) BN_sqr() bug fix.
5586 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5588 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5589 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5590 followed by modular reduction.
5591 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5593 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5594 equivalent based on BN_pseudo_rand() instead of BN_rand().
5597 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5598 This function was broken, as the check for a new client hello message
5599 to handle SGC did not allow these large messages.
5600 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5603 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5606 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5607 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5610 *) Rework the configuration and shared library support for Tru64 Unix.
5611 The configuration part makes use of modern compiler features and
5612 still retains old compiler behavior for those that run older versions
5613 of the OS. The shared library support part includes a variant that
5614 uses the RPATH feature, and is available through the special
5615 configuration target "alpha-cc-rpath", which will never be selected
5617 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5619 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5620 with the same message size as in ssl3_get_certificate_request().
5621 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5622 messages might inadvertently be reject as too long.
5623 [Petr Lampa <lampa@fee.vutbr.cz>]
5625 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5628 *) Modified SSL library such that the verify_callback that has been set
5629 specificly for an SSL object with SSL_set_verify() is actually being
5630 used. Before the change, a verify_callback set with this function was
5631 ignored and the verify_callback() set in the SSL_CTX at the time of
5632 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5633 to allow the necessary settings.
5636 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5637 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5638 done automatically (in contradiction to the requirements of the C
5639 standard). This made problems when used from OpenSSH.
5642 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5643 dh->length and always used
5645 BN_rand_range(priv_key, dh->p).
5647 BN_rand_range() is not necessary for Diffie-Hellman, and this
5648 specific range makes Diffie-Hellman unnecessarily inefficient if
5649 dh->length (recommended exponent length) is much smaller than the
5650 length of dh->p. We could use BN_rand_range() if the order of
5651 the subgroup was stored in the DH structure, but we only have
5656 BN_rand(priv_key, l, ...)
5658 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5664 RSA_eay_public_encrypt
5665 RSA_eay_private_decrypt
5666 RSA_eay_private_encrypt (signing)
5667 RSA_eay_public_decrypt (signature verification)
5669 (default implementations for RSA_public_encrypt,
5670 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5671 always reject numbers >= n.
5674 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5675 to synchronize access to 'locking_thread'. This is necessary on
5676 systems where access to 'locking_thread' (an 'unsigned long'
5677 variable) is not atomic.
5680 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5681 *before* setting the 'crypto_lock_rand' flag. The previous code had
5682 a race condition if 0 is a valid thread ID.
5683 [Travis Vitek <vitek@roguewave.com>]
5685 *) Add support for shared libraries under Irix.
5686 [Albert Chin-A-Young <china@thewrittenword.com>]
5688 *) Add configuration option to build on Linux on both big-endian and
5690 [Ralf Baechle <ralf@uni-koblenz.de>]
5692 *) Add the possibility to create shared libraries on HP-UX.
5695 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5697 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5698 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5699 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5700 PRNG state recovery was possible based on the output of
5701 one PRNG request appropriately sized to gain knowledge on
5702 'md' followed by enough consecutive 1-byte PRNG requests
5703 to traverse all of 'state'.
5705 1. When updating 'md_local' (the current thread's copy of 'md')
5706 during PRNG output generation, hash all of the previous
5707 'md_local' value, not just the half used for PRNG output.
5709 2. Make the number of bytes from 'state' included into the hash
5710 independent from the number of PRNG bytes requested.
5712 The first measure alone would be sufficient to avoid
5713 Markku-Juhani's attack. (Actually it had never occurred
5714 to me that the half of 'md_local' used for chaining was the
5715 half from which PRNG output bytes were taken -- I had always
5716 assumed that the secret half would be used.) The second
5717 measure makes sure that additional data from 'state' is never
5718 mixed into 'md_local' in small portions; this heuristically
5719 further strengthens the PRNG.
5722 *) Fix crypto/bn/asm/mips3.s.
5725 *) When only the key is given to "enc", the IV is undefined. Print out
5726 an error message in this case.
5729 *) Handle special case when X509_NAME is empty in X509 printing routines.
5732 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5733 positive and less than q.
5736 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5737 used: it isn't thread safe and the add_lock_callback should handle
5739 [Paul Rose <Paul.Rose@bridge.com>]
5741 *) Verify that incoming data obeys the block size in
5742 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5746 [Ulf Möller, Bodo Möller]
5748 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5749 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5750 when fixing the server behaviour for backwards-compatible 'client
5751 hello' messages. (Note that the attack is impractical against
5752 SSL 3.0 and TLS 1.0 anyway because length and version checking
5753 means that the probability of guessing a valid ciphertext is
5754 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5757 Before 0.9.5, the countermeasure (hide the error by generating a
5758 random 'decryption result') did not work properly because
5759 ERR_clear_error() was missing, meaning that SSL_get_error() would
5760 detect the supposedly ignored error.
5762 Both problems are now fixed.
5765 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5766 (previously it was 1024).
5769 *) Fix for compatibility mode trust settings: ignore trust settings
5770 unless some valid trust or reject settings are present.
5773 *) Fix for blowfish EVP: its a variable length cipher.
5776 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5777 parameters in DSA public key structures and return an error in the
5778 DSA routines if parameters are absent.
5781 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5782 in the current directory if neither $RANDFILE nor $HOME was set.
5783 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5784 caused some confusion to Windows users who haven't defined $HOME.
5785 Thus RAND_file_name() is changed again: e_os.h can define a
5786 DEFAULT_HOME, which will be used if $HOME is not set.
5787 For Windows, we use "C:"; on other platforms, we still require
5788 environment variables.
5790 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5791 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5792 having multiple threads call RAND_poll() concurrently.
5795 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5796 combination of a flag and a thread ID variable.
5797 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5798 flag), *other* threads can enter ssleay_add_bytes without obeying
5799 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5800 that they do not hold after the first thread unsets add_do_not_lock).
5803 *) Change bctest again: '-x' expressions are not available in all
5807 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5809 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5810 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5812 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5813 the default extension for executables, if any. Also, make the perl
5814 scripts that use symlink() to test if it really exists and use "cp"
5815 if it doesn't. All this made OpenSSL compilable and installable in
5819 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5820 If SEQUENCE is length is indefinite just set c->slen to the total
5821 amount of data available.
5822 [Steve Henson, reported by shige@FreeBSD.org]
5823 [This change does not apply to 0.9.7.]
5825 *) Change bctest to avoid here-documents inside command substitution
5826 (workaround for FreeBSD /bin/sh bug).
5827 For compatibility with Ultrix, avoid shell functions (introduced
5828 in the bctest version that searches along $PATH).
5831 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5832 with des_encrypt() defined on some operating systems, like Solaris
5836 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5837 On the Importance of Eliminating Errors in Cryptographic
5838 Computations, J. Cryptology 14 (2001) 2, 101-119,
5839 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5842 *) MIPS assembler BIGNUM division bug fix.
5845 *) Disabled incorrect Alpha assembler code.
5848 *) Fix PKCS#7 decode routines so they correctly update the length
5849 after reading an EOC for the EXPLICIT tag.
5851 [This change does not apply to 0.9.7.]
5853 *) Fix bug in PKCS#12 key generation routines. This was triggered
5854 if a 3DES key was generated with a 0 initial byte. Include
5855 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5856 (but broken) behaviour.
5859 *) Enhance bctest to search for a working bc along $PATH and print
5861 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5863 *) Fix memory leaks in err.c: free err_data string if necessary;
5864 don't write to the wrong index in ERR_set_error_data.
5867 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5871 *) Replace rdtsc with _emit statements for VC++ version 5.
5872 [Jeremy Cooper <jeremy@baymoo.org>]
5874 *) Make it possible to reuse SSLv2 sessions.
5877 *) In copy_email() check for >= 0 as a return value for
5878 X509_NAME_get_index_by_NID() since 0 is a valid index.
5879 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5881 *) Avoid coredump with unsupported or invalid public keys by checking if
5882 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5883 PKCS7_verify() fails with non detached data.
5886 *) Don't use getenv in library functions when run as setuid/setgid.
5887 New function OPENSSL_issetugid().
5890 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5891 due to incorrect handling of multi-threading:
5893 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5895 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5897 3. Count how many times MemCheck_off() has been called so that
5898 nested use can be treated correctly. This also avoids
5899 inband-signalling in the previous code (which relied on the
5900 assumption that thread ID 0 is impossible).
5903 *) Add "-rand" option also to s_client and s_server.
5906 *) Fix CPU detection on Irix 6.x.
5907 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5908 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5910 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5913 [This change does not apply to 0.9.7.]
5915 *) Use the cached encoding of an X509_NAME structure rather than
5916 copying it. This is apparently the reason for the libsafe "errors"
5917 but the code is actually correct.
5920 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5921 Bleichenbacher's DSA attack.
5922 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5923 to be set and top=0 forces the highest bit to be set; top=-1 is new
5924 and leaves the highest bit random.
5925 [Ulf Moeller, Bodo Moeller]
5927 *) In the NCONF_...-based implementations for CONF_... queries
5928 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5929 a temporary CONF structure with the data component set to NULL
5930 (which gives segmentation faults in lh_retrieve).
5931 Instead, use NULL for the CONF pointer in CONF_get_string and
5932 CONF_get_number (which may use environment variables) and directly
5933 return NULL from CONF_get_section.
5936 *) Fix potential buffer overrun for EBCDIC.
5939 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5940 keyUsage if basicConstraints absent for a CA.
5943 *) Make SMIME_write_PKCS7() write mail header values with a format that
5944 is more generally accepted (no spaces before the semicolon), since
5945 some programs can't parse those values properly otherwise. Also make
5946 sure BIO's that break lines after each write do not create invalid
5950 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5951 macros previously used would not encode an empty SEQUENCE OF
5952 and break the signature.
5954 [This change does not apply to 0.9.7.]
5956 *) Zero the premaster secret after deriving the master secret in
5960 *) Add some EVP_add_digest_alias registrations (as found in
5961 OpenSSL_add_all_digests()) to SSL_library_init()
5962 aka OpenSSL_add_ssl_algorithms(). This provides improved
5963 compatibility with peers using X.509 certificates
5964 with unconventional AlgorithmIdentifier OIDs.
5967 *) Fix for Irix with NO_ASM.
5968 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5970 *) ./config script fixes.
5971 [Ulf Moeller, Richard Levitte]
5973 *) Fix 'openssl passwd -1'.
5976 *) Change PKCS12_key_gen_asc() so it can cope with non null
5977 terminated strings whose length is passed in the passlen
5978 parameter, for example from PEM callbacks. This was done
5979 by adding an extra length parameter to asc2uni().
5980 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5982 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5983 call failed, free the DSA structure.
5986 *) Fix to uni2asc() to cope with zero length Unicode strings.
5987 These are present in some PKCS#12 files.
5990 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5991 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5992 when writing a 32767 byte record.
5993 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5995 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5996 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5998 (RSA objects have a reference count access to which is protected
5999 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6000 so they are meant to be shared between threads.)
6001 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6002 "Reddie, Steven" <Steven.Reddie@ca.com>]
6004 *) Fix a deadlock in CRYPTO_mem_leaks().
6007 *) Use better test patterns in bntest.
6010 *) rand_win.c fix for Borland C.
6013 *) BN_rshift bugfix for n == 0.
6016 *) Add a 'bctest' script that checks for some known 'bc' bugs
6017 so that 'make test' does not abort just because 'bc' is broken.
6020 *) Store verify_result within SSL_SESSION also for client side to
6021 avoid potential security hole. (Re-used sessions on the client side
6022 always resulted in verify_result==X509_V_OK, not using the original
6023 result of the server certificate verification.)
6026 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6027 SSL3_RT_APPLICATION_DATA, return 0.
6028 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6032 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6033 releases, have been re-implemented by renaming the previous
6034 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6035 and ssl3_read_internal, respectively, and adding 'peek' parameters
6036 to them. The new ssl[23]_{read,peek} functions are calls to
6037 ssl[23]_read_internal with the 'peek' flag set appropriately.
6038 A 'peek' parameter has also been added to ssl3_read_bytes, which
6039 does the actual work for ssl3_read_internal.
6042 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6043 the method-specific "init()" handler. Also clean up ex_data after
6044 calling the method-specific "finish()" handler. Previously, this was
6045 happening the other way round.
6048 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6049 The previous value, 12, was not always sufficient for BN_mod_exp().
6052 *) Make sure that shared libraries get the internal name engine with
6053 the full version number and not just 0. This should mark the
6054 shared libraries as not backward compatible. Of course, this should
6055 be changed again when we can guarantee backward binary compatibility.
6058 *) Fix typo in get_cert_by_subject() in by_dir.c
6059 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6061 *) Rework the system to generate shared libraries:
6063 - Make note of the expected extension for the shared libraries and
6064 if there is a need for symbolic links from for example libcrypto.so.0
6065 to libcrypto.so.0.9.7. There is extended info in Configure for
6068 - Make as few rebuilds of the shared libraries as possible.
6070 - Still avoid linking the OpenSSL programs with the shared libraries.
6072 - When installing, install the shared libraries separately from the
6076 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6078 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6079 and not in SSL_clear because the latter is also used by the
6080 accept/connect functions; previously, the settings made by
6081 SSL_set_read_ahead would be lost during the handshake.
6082 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6084 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6085 Previously, it would create entries for disableed algorithms no
6089 *) Added several new manual pages for SSL_* function.
6092 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6094 *) In ssl23_get_client_hello, generate an error message when faced
6095 with an initial SSL 3.0/TLS record that is too small to contain the
6096 first two bytes of the ClientHello message, i.e. client_version.
6097 (Note that this is a pathologic case that probably has never happened
6098 in real life.) The previous approach was to use the version number
6099 from the record header as a substitute; but our protocol choice
6100 should not depend on that one because it is not authenticated
6101 by the Finished messages.
6104 *) More robust randomness gathering functions for Windows.
6105 [Jeffrey Altman <jaltman@columbia.edu>]
6107 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6108 not set then we don't setup the error code for issuer check errors
6109 to avoid possibly overwriting other errors which the callback does
6110 handle. If an application does set the flag then we assume it knows
6111 what it is doing and can handle the new informational codes
6115 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6116 a general "ANY" type, as such it should be able to decode anything
6117 including tagged types. However it didn't check the class so it would
6118 wrongly interpret tagged types in the same way as their universal
6119 counterpart and unknown types were just rejected. Changed so that the
6120 tagged and unknown types are handled in the same way as a SEQUENCE:
6121 that is the encoding is stored intact. There is also a new type
6122 "V_ASN1_OTHER" which is used when the class is not universal, in this
6123 case we have no idea what the actual type is so we just lump them all
6127 *) On VMS, stdout may very well lead to a file that is written to
6128 in a record-oriented fashion. That means that every write() will
6129 write a separate record, which will be read separately by the
6130 programs trying to read from it. This can be very confusing.
6132 The solution is to put a BIO filter in the way that will buffer
6133 text until a linefeed is reached, and then write everything a
6134 line at a time, so every record written will be an actual line,
6135 not chunks of lines and not (usually doesn't happen, but I've
6136 seen it once) several lines in one record. BIO_f_linebuffer() is
6139 Currently, it's a VMS-only method, because that's where it has
6140 been tested well enough.
6143 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6144 it can return incorrect results.
6145 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6146 but it was in 0.9.6-beta[12].)
6149 *) Disable the check for content being present when verifying detached
6150 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6151 include zero length content when signing messages.
6154 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6155 BIO_ctrl (for BIO pairs).
6158 *) Add DSO method for VMS.
6161 *) Bug fix: Montgomery multiplication could produce results with the
6165 *) Add RPM specification openssl.spec and modify it to build three
6166 packages. The default package contains applications, application
6167 documentation and run-time libraries. The devel package contains
6168 include files, static libraries and function documentation. The
6169 doc package contains the contents of the doc directory. The original
6170 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6173 *) Add a large number of documentation files for many SSL routines.
6174 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6176 *) Add a configuration entry for Sony News 4.
6177 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6179 *) Don't set the two most significant bits to one when generating a
6180 random number < q in the DSA library.
6183 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6184 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6185 the underlying transport is blocking) if a handshake took place.
6186 (The default behaviour is needed by applications such as s_client
6187 and s_server that use select() to determine when to use SSL_read;
6188 but for applications that know in advance when to expect data, it
6189 just makes things more complicated.)
6192 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6196 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6197 work better on such systems.
6198 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6200 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6201 Update PKCS12_parse() so it copies the friendlyName and the
6202 keyid to the certificates aux info.
6205 *) Fix bug in PKCS7_verify() which caused an infinite loop
6206 if there was more than one signature.
6207 [Sven Uszpelkat <su@celocom.de>]
6209 *) Major change in util/mkdef.pl to include extra information
6210 about each symbol, as well as presentig variables as well
6211 as functions. This change means that there's n more need
6212 to rebuild the .num files when some algorithms are excluded.
6215 *) Allow the verify time to be set by an application,
6216 rather than always using the current time.
6219 *) Phase 2 verify code reorganisation. The certificate
6220 verify code now looks up an issuer certificate by a
6221 number of criteria: subject name, authority key id
6222 and key usage. It also verifies self signed certificates
6223 by the same criteria. The main comparison function is
6224 X509_check_issued() which performs these checks.
6226 Lot of changes were necessary in order to support this
6227 without completely rewriting the lookup code.
6229 Authority and subject key identifier are now cached.
6231 The LHASH 'certs' is X509_STORE has now been replaced
6232 by a STACK_OF(X509_OBJECT). This is mainly because an
6233 LHASH can't store or retrieve multiple objects with
6234 the same hash value.
6236 As a result various functions (which were all internal
6237 use only) have changed to handle the new X509_STORE
6238 structure. This will break anything that messed round
6239 with X509_STORE internally.
6241 The functions X509_STORE_add_cert() now checks for an
6242 exact match, rather than just subject name.
6244 The X509_STORE API doesn't directly support the retrieval
6245 of multiple certificates matching a given criteria, however
6246 this can be worked round by performing a lookup first
6247 (which will fill the cache with candidate certificates)
6248 and then examining the cache for matches. This is probably
6249 the best we can do without throwing out X509_LOOKUP
6250 entirely (maybe later...).
6252 The X509_VERIFY_CTX structure has been enhanced considerably.
6254 All certificate lookup operations now go via a get_issuer()
6255 callback. Although this currently uses an X509_STORE it
6256 can be replaced by custom lookups. This is a simple way
6257 to bypass the X509_STORE hackery necessary to make this
6258 work and makes it possible to use more efficient techniques
6259 in future. A very simple version which uses a simple
6260 STACK for its trusted certificate store is also provided
6261 using X509_STORE_CTX_trusted_stack().
6263 The verify_cb() and verify() callbacks now have equivalents
6264 in the X509_STORE_CTX structure.
6266 X509_STORE_CTX also has a 'flags' field which can be used
6267 to customise the verify behaviour.
6270 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6271 excludes S/MIME capabilities.
6274 *) When a certificate request is read in keep a copy of the
6275 original encoding of the signed data and use it when outputing
6276 again. Signatures then use the original encoding rather than
6277 a decoded, encoded version which may cause problems if the
6278 request is improperly encoded.
6281 *) For consistency with other BIO_puts implementations, call
6282 buffer_write(b, ...) directly in buffer_puts instead of calling
6285 In BIO_puts, increment b->num_write as in BIO_write.
6286 [Peter.Sylvester@EdelWeb.fr]
6288 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6289 BN_zero, we may not return a BIGNUM with an array consisting of
6293 *) Avoid calling abort() from within the library when problems are
6294 detected, except if preprocessor symbols have been defined
6295 (such as REF_CHECK, BN_DEBUG etc.).
6298 *) New openssl application 'rsautl'. This utility can be
6299 used for low level RSA operations. DER public key
6300 BIO/fp routines also added.
6303 *) New Configure entry and patches for compiling on QNX 4.
6304 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6306 *) A demo state-machine implementation was sponsored by
6307 Nuron (http://www.nuron.com/) and is now available in
6308 demos/state_machine.
6311 *) New options added to the 'dgst' utility for signature
6312 generation and verification.
6315 *) Unrecognized PKCS#7 content types are now handled via a
6316 catch all ASN1_TYPE structure. This allows unsupported
6317 types to be stored as a "blob" and an application can
6318 encode and decode it manually.
6321 *) Fix various signed/unsigned issues to make a_strex.c
6323 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6325 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6326 length if passed a buffer. ASN1_INTEGER_to_BN failed
6327 if passed a NULL BN and its argument was negative.
6328 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6330 *) Modification to PKCS#7 encoding routines to output definite
6331 length encoding. Since currently the whole structures are in
6332 memory there's not real point in using indefinite length
6333 constructed encoding. However if OpenSSL is compiled with
6334 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6337 *) Added BIO_vprintf() and BIO_vsnprintf().
6340 *) Added more prefixes to parse for in the the strings written
6341 through a logging bio, to cover all the levels that are available
6342 through syslog. The prefixes are now:
6344 PANIC, EMERG, EMR => LOG_EMERG
6345 ALERT, ALR => LOG_ALERT
6346 CRIT, CRI => LOG_CRIT
6347 ERROR, ERR => LOG_ERR
6348 WARNING, WARN, WAR => LOG_WARNING
6349 NOTICE, NOTE, NOT => LOG_NOTICE
6350 INFO, INF => LOG_INFO
6351 DEBUG, DBG => LOG_DEBUG
6353 and as before, if none of those prefixes are present at the
6354 beginning of the string, LOG_ERR is chosen.
6356 On Win32, the LOG_* levels are mapped according to this:
6358 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6359 LOG_WARNING => EVENTLOG_WARNING_TYPE
6360 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6364 *) Made it possible to reconfigure with just the configuration
6365 argument "reconf" or "reconfigure". The command line arguments
6366 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6367 and are retrieved from there when reconfiguring.
6371 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6373 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6376 *) The obj_dat.pl script was messing up the sorting of object
6377 names. The reason was that it compared the quoted version
6378 of strings as a result "OCSP" > "OCSP Signing" because
6379 " > SPACE. Changed script to store unquoted versions of
6380 names and add quotes on output. It was also omitting some
6381 names from the lookup table if they were given a default
6382 value (that is if SN is missing it is given the same
6383 value as LN and vice versa), these are now added on the
6384 grounds that if an object has a name we should be able to
6385 look it up. Finally added warning output when duplicate
6386 short or long names are found.
6389 *) Changes needed for Tandem NSK.
6390 [Scott Uroff <scott@xypro.com>]
6392 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6393 RSA_padding_check_SSLv23(), special padding was never detected
6394 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6395 version rollback attacks was not effective.
6397 In s23_clnt.c, don't use special rollback-attack detection padding
6398 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6399 client; similarly, in s23_srvr.c, don't do the rollback check if
6400 SSL 2.0 is the only protocol enabled in the server.
6403 *) Make it possible to get hexdumps of unprintable data with 'openssl
6404 asn1parse'. By implication, the functions ASN1_parse_dump() and
6405 BIO_dump_indent() are added.
6408 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6409 these print out strings and name structures based on various
6410 flags including RFC2253 support and proper handling of
6411 multibyte characters. Added options to the 'x509' utility
6412 to allow the various flags to be set.
6415 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6416 Also change the functions X509_cmp_current_time() and
6417 X509_gmtime_adj() work with an ASN1_TIME structure,
6418 this will enable certificates using GeneralizedTime in validity
6419 dates to be checked.
6422 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6423 negative public key encodings) on by default,
6424 NO_NEG_PUBKEY_BUG can be set to disable it.
6427 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6428 content octets. An i2c_ASN1_OBJECT is unnecessary because
6429 the encoding can be trivially obtained from the structure.
6432 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6433 not read locks (CRYPTO_r_[un]lock).
6436 *) A first attempt at creating official support for shared
6437 libraries through configuration. I've kept it so the
6438 default is static libraries only, and the OpenSSL programs
6439 are always statically linked for now, but there are
6440 preparations for dynamic linking in place.
6441 This has been tested on Linux and Tru64.
6444 *) Randomness polling function for Win9x, as described in:
6445 Peter Gutmann, Software Generation of Practically Strong
6449 *) Fix so PRNG is seeded in req if using an already existing
6453 *) New options to smime application. -inform and -outform
6454 allow alternative formats for the S/MIME message including
6455 PEM and DER. The -content option allows the content to be
6456 specified separately. This should allow things like Netscape
6457 form signing output easier to verify.
6460 *) Fix the ASN1 encoding of tags using the 'long form'.
6463 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6464 STRING types. These convert content octets to and from the
6465 underlying type. The actual tag and length octets are
6466 already assumed to have been read in and checked. These
6467 are needed because all other string types have virtually
6468 identical handling apart from the tag. By having versions
6469 of the ASN1 functions that just operate on content octets
6470 IMPLICIT tagging can be handled properly. It also allows
6471 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6472 and ASN1_INTEGER are identical apart from the tag.
6475 *) Change the handling of OID objects as follows:
6477 - New object identifiers are inserted in objects.txt, following
6478 the syntax given in objects.README.
6479 - objects.pl is used to process obj_mac.num and create a new
6481 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6484 This is currently kind of a hack, and the perl code in objects.pl
6485 isn't very elegant, but it works as I intended. The simplest way
6486 to check that it worked correctly is to look in obj_dat.h and
6487 check the array nid_objs and make sure the objects haven't moved
6488 around (this is important!). Additions are OK, as well as
6489 consistent name changes.
6492 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6495 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6496 The given file adds to whatever has already been seeded into the
6497 random pool through the RANDFILE configuration file option or
6498 environment variable, or the default random state file.
6501 *) mkstack.pl now sorts each macro group into lexical order.
6502 Previously the output order depended on the order the files
6503 appeared in the directory, resulting in needless rewriting
6507 *) Patches to make OpenSSL compile under Win32 again. Mostly
6508 work arounds for the VC++ problem that it treats func() as
6509 func(void). Also stripped out the parts of mkdef.pl that
6510 added extra typesafe functions: these no longer exist.
6513 *) Reorganisation of the stack code. The macros are now all
6514 collected in safestack.h . Each macro is defined in terms of
6515 a "stack macro" of the form SKM_<name>(type, a, b). The
6516 DEBUG_SAFESTACK is now handled in terms of function casts,
6517 this has the advantage of retaining type safety without the
6518 use of additional functions. If DEBUG_SAFESTACK is not defined
6519 then the non typesafe macros are used instead. Also modified the
6520 mkstack.pl script to handle the new form. Needs testing to see
6521 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6522 the default if no major problems. Similar behaviour for ASN1_SET_OF
6523 and PKCS12_STACK_OF.
6526 *) When some versions of IIS use the 'NET' form of private key the
6527 key derivation algorithm is different. Normally MD5(password) is
6528 used as a 128 bit RC4 key. In the modified case
6529 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6530 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6531 as the old Netscape_RSA functions except they have an additional
6532 'sgckey' parameter which uses the modified algorithm. Also added
6533 an -sgckey command line option to the rsa utility. Thanks to
6534 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6535 algorithm to openssl-dev.
6538 *) The evp_local.h macros were using 'c.##kname' which resulted in
6539 invalid expansion on some systems (SCO 5.0.5 for example).
6540 Corrected to 'c.kname'.
6541 [Phillip Porch <root@theporch.com>]
6543 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6544 a STACK of email addresses from a certificate or request, these look
6545 in the subject name and the subject alternative name extensions and
6546 omit any duplicate addresses.
6549 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6550 This makes DSA verification about 2 % faster.
6553 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6554 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6555 plus overhead for 1024 bit moduli).
6556 This makes exponentiations about 0.5 % faster for 1024 bit
6557 exponents (as measured by "openssl speed rsa2048").
6560 *) Rename memory handling macros to avoid conflicts with other
6562 Malloc => OPENSSL_malloc
6563 Malloc_locked => OPENSSL_malloc_locked
6564 Realloc => OPENSSL_realloc
6565 Free => OPENSSL_free
6568 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6569 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6572 *) CygWin32 support.
6573 [John Jarvie <jjarvie@newsguy.com>]
6575 *) The type-safe stack code has been rejigged. It is now only compiled
6576 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6577 by default all type-specific stack functions are "#define"d back to
6578 standard stack functions. This results in more streamlined output
6579 but retains the type-safety checking possibilities of the original
6583 *) The STACK code has been cleaned up, and certain type declarations
6584 that didn't make a lot of sense have been brought in line. This has
6585 also involved a cleanup of sorts in safestack.h to more correctly
6586 map type-safe stack functions onto their plain stack counterparts.
6587 This work has also resulted in a variety of "const"ifications of
6588 lots of the code, especially "_cmp" operations which should normally
6589 be prototyped with "const" parameters anyway.
6592 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6593 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6594 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6595 where all of 'md' is used each time the PRNG is used, but 'state'
6596 is used only indexed by a cyclic counter. As entropy may not be
6597 well distributed from the beginning, 'md' is important as a
6598 chaining variable. However, the output function chains only half
6599 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6600 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6601 in all of 'state' being rewritten, with the new values depending
6602 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6605 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6606 the handshake is continued after ssl_verify_cert_chain();
6607 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6608 can lead to 'unexplainable' connection aborts later.
6609 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6611 *) Major EVP API cipher revision.
6612 Add hooks for extra EVP features. This allows various cipher
6613 parameters to be set in the EVP interface. Support added for variable
6614 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6615 setting of RC2 and RC5 parameters.
6617 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6620 Remove lots of duplicated code from the EVP library. For example *every*
6621 cipher init() function handles the 'iv' in the same way according to the
6622 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6623 for CFB and OFB modes they zero ctx->num.
6625 New functionality allows removal of S/MIME code RC2 hack.
6627 Most of the routines have the same form and so can be declared in terms
6630 By shifting this to the top level EVP_CipherInit() it can be removed from
6631 all individual ciphers. If the cipher wants to handle IVs or keys
6632 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6635 Change lots of functions like EVP_EncryptUpdate() to now return a
6636 value: although software versions of the algorithms cannot fail
6637 any installed hardware versions can.
6640 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6641 this option is set, tolerate broken clients that send the negotiated
6642 protocol version number instead of the requested protocol version
6646 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6647 i.e. non-zero for export ciphersuites, zero otherwise.
6648 Previous versions had this flag inverted, inconsistent with
6649 rsa_tmp_cb (..._TMP_RSA_CB).
6650 [Bodo Moeller; problem reported by Amit Chopra]
6652 *) Add missing DSA library text string. Work around for some IIS
6653 key files with invalid SEQUENCE encoding.
6656 *) Add a document (doc/standards.txt) that list all kinds of standards
6657 and so on that are implemented in OpenSSL.
6660 *) Enhance c_rehash script. Old version would mishandle certificates
6661 with the same subject name hash and wouldn't handle CRLs at all.
6662 Added -fingerprint option to crl utility, to support new c_rehash
6666 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6669 *) Fix for SSL server purpose checking. Server checking was
6670 rejecting certificates which had extended key usage present
6671 but no ssl client purpose.
6672 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6674 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6675 is a little unclear about how a blank password is handled.
6676 Since the password in encoded as a BMPString with terminating
6677 double NULL a zero length password would end up as just the
6678 double NULL. However no password at all is different and is
6679 handled differently in the PKCS#12 key generation code. NS
6680 treats a blank password as zero length. MSIE treats it as no
6681 password on export: but it will try both on import. We now do
6682 the same: PKCS12_parse() tries zero length and no password if
6683 the password is set to "" or NULL (NULL is now a valid password:
6684 it wasn't before) as does the pkcs12 application.
6687 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6688 perror when PEM_read_bio_X509_REQ fails, the error message must
6689 be obtained from the error queue.
6692 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6693 it in ERR_remove_state if appropriate, and change ERR_get_state
6694 accordingly to avoid race conditions (this is necessary because
6695 thread_hash is no longer constant once set).
6698 *) Bugfix for linux-elf makefile.one.
6701 *) RSA_get_default_method() will now cause a default
6702 RSA_METHOD to be chosen if one doesn't exist already.
6703 Previously this was only set during a call to RSA_new()
6704 or RSA_new_method(NULL) meaning it was possible for
6705 RSA_get_default_method() to return NULL.
6708 *) Added native name translation to the existing DSO code
6709 that will convert (if the flag to do so is set) filenames
6710 that are sufficiently small and have no path information
6711 into a canonical native form. Eg. "blah" converted to
6712 "libblah.so" or "blah.dll" etc.
6715 *) New function ERR_error_string_n(e, buf, len) which is like
6716 ERR_error_string(e, buf), but writes at most 'len' bytes
6717 including the 0 terminator. For ERR_error_string_n, 'buf'
6719 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6721 *) CONF library reworked to become more general. A new CONF
6722 configuration file reader "class" is implemented as well as a
6723 new functions (NCONF_*, for "New CONF") to handle it. The now
6724 old CONF_* functions are still there, but are reimplemented to
6725 work in terms of the new functions. Also, a set of functions
6726 to handle the internal storage of the configuration data is
6727 provided to make it easier to write new configuration file
6728 reader "classes" (I can definitely see something reading a
6729 configuration file in XML format, for example), called _CONF_*,
6730 or "the configuration storage API"...
6732 The new configuration file reading functions are:
6734 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6735 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6737 NCONF_default, NCONF_WIN32
6739 NCONF_dump_fp, NCONF_dump_bio
6741 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6742 NCONF_new creates a new CONF object. This works in the same way
6743 as other interfaces in OpenSSL, like the BIO interface.
6744 NCONF_dump_* dump the internal storage of the configuration file,
6745 which is useful for debugging. All other functions take the same
6746 arguments as the old CONF_* functions wth the exception of the
6747 first that must be a `CONF *' instead of a `LHASH *'.
6749 To make it easer to use the new classes with the old CONF_* functions,
6750 the function CONF_set_default_method is provided.
6753 *) Add '-tls1' option to 'openssl ciphers', which was already
6754 mentioned in the documentation but had not been implemented.
6755 (This option is not yet really useful because even the additional
6756 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6759 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6760 OpenSSL-based applications) load shared libraries and bind to
6761 them in a portable way.
6762 [Geoff Thorpe, with contributions from Richard Levitte]
6764 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6766 *) Make sure _lrotl and _lrotr are only used with MSVC.
6768 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6769 (the default implementation of RAND_status).
6771 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6772 to '-clrext' (= clear extensions), as intended and documented.
6773 [Bodo Moeller; inconsistency pointed out by Michael Attili
6776 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6777 was larger than the MD block size.
6778 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6780 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6781 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6782 using the passed key: if the passed key was a private key the result
6783 of X509_print(), for example, would be to print out all the private key
6787 *) des_quad_cksum() byte order bug fix.
6788 [Ulf Möller, using the problem description in krb4-0.9.7, where
6789 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6791 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6793 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6795 *) For easily testing in shell scripts whether some command
6796 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6797 returns with exit code 0 iff no command of the given name is available.
6798 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6799 the output goes to stdout and nothing is printed to stderr.
6800 Additional arguments are always ignored.
6802 Since for each cipher there is a command of the same name,
6803 the 'no-cipher' compilation switches can be tested this way.
6805 ('openssl no-XXX' is not able to detect pseudo-commands such
6806 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6809 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6812 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6813 is set; it will be thrown away anyway because each handshake creates
6815 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6816 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6817 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6818 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6821 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6822 'Q' and 'R' lose their special meanings (quit/renegotiate).
6823 This is part of what -quiet does; unlike -quiet, -ign_eof
6824 does not suppress any output.
6827 *) Add compatibility options to the purpose and trust code. The
6828 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6829 accepts a certificate or CA, this was the previous behaviour,
6830 with all the associated security issues.
6832 X509_TRUST_COMPAT is the old trust behaviour: only and
6833 automatically trust self signed roots in certificate store. A
6834 new trust setting X509_TRUST_DEFAULT is used to specify that
6835 a purpose has no associated trust setting and it should instead
6836 use the value in the default purpose.
6839 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6840 and fix a memory leak.
6843 *) In util/mkerr.pl (which implements 'make errors'), preserve
6844 reason strings from the previous version of the .c file, as
6845 the default to have only downcase letters (and digits) in
6846 automatically generated reasons codes is not always appropriate.
6849 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6850 using strerror. Previously, ERR_reason_error_string() returned
6851 library names as reason strings for SYSerr; but SYSerr is a special
6852 case where small numbers are errno values, not library numbers.
6855 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6856 converts DSA parameters into DH parameters. (When creating parameters,
6857 DSA_generate_parameters is used.)
6860 *) Include 'length' (recommended exponent length) in C code generated
6861 by 'openssl dhparam -C'.
6864 *) The second argument to set_label in perlasm was already being used
6865 so couldn't be used as a "file scope" flag. Moved to third argument
6869 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6870 instead of RAND_bytes for encryption IVs and salts.
6873 *) Include RAND_status() into RAND_METHOD instead of implementing
6874 it only for md_rand.c Otherwise replacing the PRNG by calling
6875 RAND_set_rand_method would be impossible.
6878 *) Don't let DSA_generate_key() enter an infinite loop if the random
6879 number generation fails.
6882 *) New 'rand' application for creating pseudo-random output.
6885 *) Added configuration support for Linux/IA64
6886 [Rolf Haberrecker <rolf@suse.de>]
6888 *) Assembler module support for Mingw32.
6891 *) Shared library support for HPUX (in shlib/).
6892 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6894 *) Shared library support for Solaris gcc.
6895 [Lutz Behnke <behnke@trustcenter.de>]
6897 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6899 *) PKCS7_encrypt() was adding text MIME headers twice because they
6900 were added manually and by SMIME_crlf_copy().
6903 *) In bntest.c don't call BN_rand with zero bits argument.
6904 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6906 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6907 case was implemented. This caused BN_div_recp() to fail occasionally.
6910 *) Add an optional second argument to the set_label() in the perl
6911 assembly language builder. If this argument exists and is set
6912 to 1 it signals that the assembler should use a symbol whose
6913 scope is the entire file, not just the current function. This
6914 is needed with MASM which uses the format label:: for this scope.
6915 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6917 *) Change the ASN1 types so they are typedefs by default. Before
6918 almost all types were #define'd to ASN1_STRING which was causing
6919 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6923 *) Change names of new functions to the new get1/get0 naming
6924 convention: After 'get1', the caller owns a reference count
6925 and has to call ..._free; 'get0' returns a pointer to some
6926 data structure without incrementing reference counters.
6927 (Some of the existing 'get' functions increment a reference
6928 counter, some don't.)
6929 Similarly, 'set1' and 'add1' functions increase reference
6930 counters or duplicate objects.
6933 *) Allow for the possibility of temp RSA key generation failure:
6934 the code used to assume it always worked and crashed on failure.
6937 *) Fix potential buffer overrun problem in BIO_printf().
6938 [Ulf Möller, using public domain code by Patrick Powell; problem
6939 pointed out by David Sacerdote <das33@cornell.edu>]
6941 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6942 RAND_egd() and RAND_status(). In the command line application,
6943 the EGD socket can be specified like a seed file using RANDFILE
6947 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6948 Some CAs (e.g. Verisign) distribute certificates in this form.
6951 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6952 list to exclude them. This means that no special compilation option
6953 is needed to use anonymous DH: it just needs to be included in the
6957 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6958 EVP_MD_type. The old functionality is available in a new macro called
6959 EVP_MD_md(). Change code that uses it and update docs.
6962 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6963 where the 'void *' argument is replaced by a function pointer argument.
6964 Previously 'void *' was abused to point to functions, which works on
6965 many platforms, but is not correct. As these functions are usually
6966 called by macros defined in OpenSSL header files, most source code
6967 should work without changes.
6970 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6971 sections with information on -D... compiler switches used for
6972 compiling the library so that applications can see them. To enable
6973 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6974 must be defined. E.g.,
6975 #define OPENSSL_ALGORITHM_DEFINES
6976 #include <openssl/opensslconf.h>
6977 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6978 [Richard Levitte, Ulf and Bodo Möller]
6980 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6984 *) Change the 'other' type in certificate aux info to a STACK_OF
6985 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6986 the required ASN1 format: arbitrary types determined by an OID.
6989 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6990 argument to 'req'. This is not because the function is newer or
6991 better than others it just uses the work 'NEW' in the certificate
6992 request header lines. Some software needs this.
6995 *) Reorganise password command line arguments: now passwords can be
6996 obtained from various sources. Delete the PEM_cb function and make
6997 it the default behaviour: i.e. if the callback is NULL and the
6998 usrdata argument is not NULL interpret it as a null terminated pass
6999 phrase. If usrdata and the callback are NULL then the pass phrase
7000 is prompted for as usual.
7003 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7004 the support is automatically enabled. The resulting binaries will
7005 autodetect the card and use it if present.
7006 [Ben Laurie and Compaq Inc.]
7008 *) Work around for Netscape hang bug. This sends certificate request
7009 and server done in one record. Since this is perfectly legal in the
7010 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7011 the bugs/SSLv3 entry for more info.
7014 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7017 *) Add -rand argument to smime and pkcs12 applications and read/write
7021 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7024 *) Add command line password options to the remaining applications.
7027 *) Bug fix for BN_div_recp() for numerators with an even number of
7031 *) More tests in bntest.c, and changed test_bn output.
7034 *) ./config recognizes MacOS X now.
7037 *) Bug fix for BN_div() when the first words of num and divsor are
7038 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7041 *) Add support for various broken PKCS#8 formats, and command line
7042 options to produce them.
7045 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7046 get temporary BIGNUMs from a BN_CTX.
7049 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7053 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7054 include a #define from the old name to the new. The original intent
7055 was that statically linked binaries could for example just call
7056 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7057 link with digests. This never worked becayse SSLeay_add_all_digests()
7058 and SSLeay_add_all_ciphers() were in the same source file so calling
7059 one would link with the other. They are now in separate source files.
7062 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7065 *) Use a less unusual form of the Miller-Rabin primality test (it used
7066 a binary algorithm for exponentiation integrated into the Miller-Rabin
7067 loop, our standard modexp algorithms are faster).
7070 *) Support for the EBCDIC character set completed.
7071 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7073 *) Source code cleanups: use const where appropriate, eliminate casts,
7074 use void * instead of char * in lhash.
7077 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7078 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7079 this the server could overwrite ephemeral keys that the client
7083 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7084 using 50 iterations of the Rabin-Miller test.
7086 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7087 iterations of the Rabin-Miller test as required by the appendix
7088 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7089 As BN_is_prime_fasttest includes trial division, DSA parameter
7090 generation becomes much faster.
7092 This implies a change for the callback functions in DSA_is_prime
7093 and DSA_generate_parameters: The callback function is called once
7094 for each positive witness in the Rabin-Miller test, not just
7095 occasionally in the inner loop; and the parameters to the
7096 callback function now provide an iteration count for the outer
7097 loop rather than for the current invocation of the inner loop.
7098 DSA_generate_parameters additionally can call the callback
7099 function with an 'iteration count' of -1, meaning that a
7100 candidate has passed the trial division test (when q is generated
7101 from an application-provided seed, trial division is skipped).
7104 *) New function BN_is_prime_fasttest that optionally does trial
7105 division before starting the Rabin-Miller test and has
7106 an additional BN_CTX * argument (whereas BN_is_prime always
7107 has to allocate at least one BN_CTX).
7108 'callback(1, -1, cb_arg)' is called when a number has passed the
7109 trial division stage.
7112 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7116 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7119 *) New function BN_pseudo_rand().
7122 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7123 bignum version of BN_from_montgomery() with the working code from
7124 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7128 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7129 made it impossible to use the same SSL_SESSION data structure in
7130 SSL2 clients in multiple threads.
7133 *) The return value of RAND_load_file() no longer counts bytes obtained
7134 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7135 to seed the PRNG (previously an explicit byte count was required).
7136 [Ulf Möller, Bodo Möller]
7138 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7139 used (char *) instead of (void *) and had casts all over the place.
7142 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7145 *) Retain source code compatibility for BN_prime_checks macro:
7146 BN_is_prime(..., BN_prime_checks, ...) now uses
7147 BN_prime_checks_for_size to determine the appropriate number of
7148 Rabin-Miller iterations.
7151 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7152 DH_CHECK_P_NOT_SAFE_PRIME.
7153 (Check if this is true? OpenPGP calls them "strong".)
7156 *) Merge the functionality of "dh" and "gendh" programs into a new program
7157 "dhparam". The old programs are retained for now but will handle DH keys
7158 (instead of parameters) in future.
7161 *) Make the ciphers, s_server and s_client programs check the return values
7162 when a new cipher list is set.
7165 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7166 ciphers. Before when the 56bit ciphers were enabled the sorting was
7169 The syntax for the cipher sorting has been extended to support sorting by
7170 cipher-strength (using the strength_bits hard coded in the tables).
7171 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7173 Fix a bug in the cipher-command parser: when supplying a cipher command
7174 string with an "undefined" symbol (neither command nor alphanumeric
7175 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7176 an error is flagged.
7178 Due to the strength-sorting extension, the code of the
7179 ssl_create_cipher_list() function was completely rearranged. I hope that
7180 the readability was also increased :-)
7181 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7183 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7184 for the first serial number and places 2 in the serial number file. This
7185 avoids problems when the root CA is created with serial number zero and
7186 the first user certificate has the same issuer name and serial number
7190 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7191 the new code. Add documentation for this stuff.
7194 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7195 X509_*() to X509at_*() on the grounds that they don't handle X509
7196 structures and behave in an analagous way to the X509v3 functions:
7197 they shouldn't be called directly but wrapper functions should be used
7200 So we also now have some wrapper functions that call the X509at functions
7201 when passed certificate requests. (TO DO: similar things can be done with
7202 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7203 things. Some of these need some d2i or i2d and print functionality
7204 because they handle more complex structures.)
7207 *) Add missing #ifndefs that caused missing symbols when building libssl
7208 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7209 NO_RSA in ssl/s2*.c.
7210 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7212 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7213 has a return value which indicates the quality of the random data
7214 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7215 error queue. New function RAND_pseudo_bytes() generates output that is
7216 guaranteed to be unique but not unpredictable. RAND_add is like
7217 RAND_seed, but takes an extra argument for an entropy estimate
7218 (RAND_seed always assumes full entropy).
7221 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7222 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7223 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7224 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7225 false-positive rate of at most 2^-80 for random input.
7228 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7231 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7232 in the 0.9.5 release), this returns the chain
7233 from an X509_CTX structure with a dup of the stack and all
7234 the X509 reference counts upped: so the stack will exist
7235 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7238 Also make SSL_SESSION_print() print out the verify return
7242 *) Add manpage for the pkcs12 command. Also change the default
7243 behaviour so MAC iteration counts are used unless the new
7244 -nomaciter option is used. This improves file security and
7245 only older versions of MSIE (4.0 for example) need it.
7248 *) Honor the no-xxx Configure options when creating .DEF files.
7251 *) Add PKCS#10 attributes to field table: challengePassword,
7252 unstructuredName and unstructuredAddress. These are taken from
7253 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7254 international characters are used.
7256 More changes to X509_ATTRIBUTE code: allow the setting of types
7257 based on strings. Remove the 'loc' parameter when adding
7258 attributes because these will be a SET OF encoding which is sorted
7262 *) Initial changes to the 'req' utility to allow request generation
7263 automation. This will allow an application to just generate a template
7264 file containing all the field values and have req construct the
7267 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7268 used all over the place including certificate requests and PKCS#7
7269 structures. They are currently handled manually where necessary with
7270 some primitive wrappers for PKCS#7. The new functions behave in a
7271 manner analogous to the X509 extension functions: they allow
7272 attributes to be looked up by NID and added.
7274 Later something similar to the X509V3 code would be desirable to
7275 automatically handle the encoding, decoding and printing of the
7276 more complex types. The string types like challengePassword can
7277 be handled by the string table functions.
7279 Also modified the multi byte string table handling. Now there is
7280 a 'global mask' which masks out certain types. The table itself
7281 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7282 is useful when for example there is only one permissible type
7283 (as in countryName) and using the mask might result in no valid
7287 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7288 SSL_get_peer_finished to allow applications to obtain the latest
7289 Finished messages sent to the peer or expected from the peer,
7290 respectively. (SSL_get_peer_finished is usually the Finished message
7291 actually received from the peer, otherwise the protocol will be aborted.)
7293 As the Finished message are message digests of the complete handshake
7294 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7295 be used for external authentication procedures when the authentication
7296 provided by SSL/TLS is not desired or is not enough.
7299 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7300 the host supports BWX extension and if Compaq C is present on the
7301 $PATH. Just exploiting of the BWX extension results in 20-30%
7302 performance kick for some algorithms, e.g. DES and RC4 to mention
7303 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7307 *) Add support for MS "fast SGC". This is arguably a violation of the
7308 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7309 weak crypto and after checking the certificate is SGC a second one
7310 with strong crypto. MS SGC stops the first handshake after receiving
7311 the server certificate message and sends a second client hello. Since
7312 a server will typically do all the time consuming operations before
7313 expecting any further messages from the client (server key exchange
7314 is the most expensive) there is little difference between the two.
7316 To get OpenSSL to support MS SGC we have to permit a second client
7317 hello message after we have sent server done. In addition we have to
7318 reset the MAC if we do get this second client hello.
7321 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7322 if a DER encoded private key is RSA or DSA traditional format. Changed
7323 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7324 format DER encoded private key. Newer code should use PKCS#8 format which
7325 has the key type encoded in the ASN1 structure. Added DER private key
7326 support to pkcs8 application.
7329 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7330 ciphersuites has been selected (as required by the SSL 3/TLS 1
7331 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7332 is set, we interpret this as a request to violate the specification
7333 (the worst that can happen is a handshake failure, and 'correct'
7334 behaviour would result in a handshake failure anyway).
7337 *) In SSL_CTX_add_session, take into account that there might be multiple
7338 SSL_SESSION structures with the same session ID (e.g. when two threads
7339 concurrently obtain them from an external cache).
7340 The internal cache can handle only one SSL_SESSION with a given ID,
7341 so if there's a conflict, we now throw out the old one to achieve
7345 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7346 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7347 some routines that use cipher OIDs: some ciphers do not have OIDs
7348 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7352 *) Simplify the trust setting structure and code. Now we just have
7353 two sequences of OIDs for trusted and rejected settings. These will
7354 typically have values the same as the extended key usage extension
7355 and any application specific purposes.
7357 The trust checking code now has a default behaviour: it will just
7358 check for an object with the same NID as the passed id. Functions can
7359 be provided to override either the default behaviour or the behaviour
7360 for a given id. SSL client, server and email already have functions
7361 in place for compatibility: they check the NID and also return "trusted"
7362 if the certificate is self signed.
7365 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7366 traditional format into an EVP_PKEY structure.
7369 *) Add a password callback function PEM_cb() which either prompts for
7370 a password if usr_data is NULL or otherwise assumes it is a null
7371 terminated password. Allow passwords to be passed on command line
7372 environment or config files in a few more utilities.
7375 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7376 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7377 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7378 Update documentation.
7381 *) Support for ASN1 "NULL" type. This could be handled before by using
7382 ASN1_TYPE but there wasn't any function that would try to read a NULL
7383 and produce an error if it couldn't. For compatibility we also have
7384 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7385 don't allocate anything because they don't need to.
7388 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7390 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7392 *) Rebuild of the memory allocation routines used by OpenSSL code and
7393 possibly others as well. The purpose is to make an interface that
7394 provide hooks so anyone can build a separate set of allocation and
7395 deallocation routines to be used by OpenSSL, for example memory
7396 pool implementations, or something else, which was previously hard
7397 since Malloc(), Realloc() and Free() were defined as macros having
7398 the values malloc, realloc and free, respectively (except for Win32
7399 compilations). The same is provided for memory debugging code.
7400 OpenSSL already comes with functionality to find memory leaks, but
7401 this gives people a chance to debug other memory problems.
7403 With these changes, a new set of functions and macros have appeared:
7405 CRYPTO_set_mem_debug_functions() [F]
7406 CRYPTO_get_mem_debug_functions() [F]
7407 CRYPTO_dbg_set_options() [F]
7408 CRYPTO_dbg_get_options() [F]
7409 CRYPTO_malloc_debug_init() [M]
7411 The memory debug functions are NULL by default, unless the library
7412 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7413 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7414 gives the standard debugging functions that come with OpenSSL) or
7415 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7416 provided by the library user) must be used. When the standard
7417 debugging functions are used, CRYPTO_dbg_set_options can be used to
7418 request additional information:
7419 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7420 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7422 Also, things like CRYPTO_set_mem_functions will always give the
7423 expected result (the new set of functions is used for allocation
7424 and deallocation) at all times, regardless of platform and compiler
7427 To finish it up, some functions that were never use in any other
7428 way than through macros have a new API and new semantic:
7431 CRYPTO_dbg_realloc()
7434 All macros of value have retained their old syntax.
7435 [Richard Levitte and Bodo Moeller]
7437 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7438 ordering of SMIMECapabilities wasn't in "strength order" and there
7439 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7443 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7444 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7445 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7447 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7448 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7449 functionality to handle multipart/signed properly) and a utility
7450 called 'smime' to call all this stuff. This is based on code I
7451 originally wrote for Celo who have kindly allowed it to be
7452 included in OpenSSL.
7455 *) Add variants des_set_key_checked and des_set_key_unchecked of
7456 des_set_key (aka des_key_sched). Global variable des_check_key
7457 decides which of these is called by des_set_key; this way
7458 des_check_key behaves as it always did, but applications and
7459 the library itself, which was buggy for des_check_key == 1,
7460 have a cleaner way to pick the version they need.
7463 *) New function PKCS12_newpass() which changes the password of a
7467 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7468 dynamic mix. In both cases the ids can be used as an index into the
7469 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7470 functions so they accept a list of the field values and the
7471 application doesn't need to directly manipulate the X509_TRUST
7475 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7479 *) Modify the way the V3 extension code looks up extensions. This now
7480 works in a similar way to the object code: we have some "standard"
7481 extensions in a static table which is searched with OBJ_bsearch()
7482 and the application can add dynamic ones if needed. The file
7483 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7484 updated whenever a new extension is added to the core code and kept
7485 in ext_nid order. There is a simple program 'tabtest.c' which checks
7486 this. New extensions are not added too often so this file can readily
7487 be maintained manually.
7489 There are two big advantages in doing things this way. The extensions
7490 can be looked up immediately and no longer need to be "added" using
7491 X509V3_add_standard_extensions(): this function now does nothing.
7492 [Side note: I get *lots* of email saying the extension code doesn't
7493 work because people forget to call this function]
7494 Also no dynamic allocation is done unless new extensions are added:
7495 so if we don't add custom extensions there is no need to call
7496 X509V3_EXT_cleanup().
7499 *) Modify enc utility's salting as follows: make salting the default. Add a
7500 magic header, so unsalted files fail gracefully instead of just decrypting
7501 to garbage. This is because not salting is a big security hole, so people
7502 should be discouraged from doing it.
7505 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7506 digest to be passed on the command line but it only used this
7507 parameter when signing a certificate. Modified so all relevant
7508 operations are affected by the digest parameter including the
7509 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7510 DSA key was used because it didn't fix the digest.
7513 *) Initial certificate chain verify code. Currently tests the untrusted
7514 certificates for consistency with the verify purpose (which is set
7515 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7517 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7518 this is because it will reject chains with invalid extensions whereas
7519 every previous version of OpenSSL and SSLeay made no checks at all.
7521 Trust code: checks the root CA for the relevant trust settings. Trust
7522 settings have an initial value consistent with the verify purpose: e.g.
7523 if the verify purpose is for SSL client use it expects the CA to be
7524 trusted for SSL client use. However the default value can be changed to
7525 permit custom trust settings: one example of this would be to only trust
7526 certificates from a specific "secure" set of CAs.
7528 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7529 which should be used for version portability: especially since the
7530 verify structure is likely to change more often now.
7532 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7533 to set them. If not set then assume SSL clients will verify SSL servers
7536 Two new options to the verify program: -untrusted allows a set of
7537 untrusted certificates to be passed in and -purpose which sets the
7538 intended purpose of the certificate. If a purpose is set then the
7539 new chain verify code is used to check extension consistency.
7542 *) Support for the authority information access extension.
7545 *) Modify RSA and DSA PEM read routines to transparently handle
7546 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7547 public keys in a format compatible with certificate
7548 SubjectPublicKeyInfo structures. Unfortunately there were already
7549 functions called *_PublicKey_* which used various odd formats so
7550 these are retained for compatibility: however the DSA variants were
7551 never in a public release so they have been deleted. Changed dsa/rsa
7552 utilities to handle the new format: note no releases ever handled public
7553 keys so we should be OK.
7555 The primary motivation for this change is to avoid the same fiasco
7556 that dogs private keys: there are several incompatible private key
7557 formats some of which are standard and some OpenSSL specific and
7558 require various evil hacks to allow partial transparent handling and
7559 even then it doesn't work with DER formats. Given the option anything
7560 other than PKCS#8 should be dumped: but the other formats have to
7561 stay in the name of compatibility.
7563 With public keys and the benefit of hindsight one standard format
7564 is used which works with EVP_PKEY, RSA or DSA structures: though
7565 it clearly returns an error if you try to read the wrong kind of key.
7567 Added a -pubkey option to the 'x509' utility to output the public key.
7568 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7569 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7570 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7571 that do the same as the EVP_PKEY_assign_*() except they up the
7572 reference count of the added key (they don't "swallow" the
7576 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7577 CRLs would fail if the file contained no certificates or no CRLs:
7578 added a new function to read in both types and return the number
7579 read: this means that if none are read it will be an error. The
7580 DER versions of the certificate and CRL reader would always fail
7581 because it isn't possible to mix certificates and CRLs in DER format
7582 without choking one or the other routine. Changed this to just read
7583 a certificate: this is the best we can do. Also modified the code
7584 in apps/verify.c to take notice of return codes: it was previously
7585 attempting to read in certificates from NULL pointers and ignoring
7586 any errors: this is one reason why the cert and CRL reader seemed
7587 to work. It doesn't check return codes from the default certificate
7588 routines: these may well fail if the certificates aren't installed.
7591 *) Code to support otherName option in GeneralName.
7594 *) First update to verify code. Change the verify utility
7595 so it warns if it is passed a self signed certificate:
7596 for consistency with the normal behaviour. X509_verify
7597 has been modified to it will now verify a self signed
7598 certificate if *exactly* the same certificate appears
7599 in the store: it was previously impossible to trust a
7600 single self signed certificate. This means that:
7601 openssl verify ss.pem
7602 now gives a warning about a self signed certificate but
7603 openssl verify -CAfile ss.pem ss.pem
7607 *) For servers, store verify_result in SSL_SESSION data structure
7608 (and add it to external session representation).
7609 This is needed when client certificate verifications fails,
7610 but an application-provided verification callback (set by
7611 SSL_CTX_set_cert_verify_callback) allows accepting the session
7612 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7613 but returns 1): When the session is reused, we have to set
7614 ssl->verify_result to the appropriate error code to avoid
7616 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7618 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7619 case in PKCS7_dataInit() where the signed PKCS7 structure
7620 didn't contain any existing data because it was being created.
7621 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7623 *) Add a salt to the key derivation routines in enc.c. This
7624 forms the first 8 bytes of the encrypted file. Also add a
7625 -S option to allow a salt to be input on the command line.
7628 *) New function X509_cmp(). Oddly enough there wasn't a function
7629 to compare two certificates. We do this by working out the SHA1
7630 hash and comparing that. X509_cmp() will be needed by the trust
7634 *) SSL_get1_session() is like SSL_get_session(), but increments
7635 the reference count in the SSL_SESSION returned.
7636 [Geoff Thorpe <geoff@eu.c2.net>]
7638 *) Fix for 'req': it was adding a null to request attributes.
7639 Also change the X509_LOOKUP and X509_INFO code to handle
7640 certificate auxiliary information.
7643 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7647 *) Add the possibility to add extra information to the memory leak
7648 detecting output, to form tracebacks, showing from where each
7649 allocation was originated: CRYPTO_push_info("constant string") adds
7650 the string plus current file name and line number to a per-thread
7651 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7652 is like calling CYRPTO_pop_info() until the stack is empty.
7653 Also updated memory leak detection code to be multi-thread-safe.
7656 *) Add options -text and -noout to pkcs7 utility and delete the
7657 encryption options which never did anything. Update docs.
7660 *) Add options to some of the utilities to allow the pass phrase
7661 to be included on either the command line (not recommended on
7662 OSes like Unix) or read from the environment. Update the
7663 manpages and fix a few bugs.
7666 *) Add a few manpages for some of the openssl commands.
7669 *) Fix the -revoke option in ca. It was freeing up memory twice,
7670 leaking and not finding already revoked certificates.
7673 *) Extensive changes to support certificate auxiliary information.
7674 This involves the use of X509_CERT_AUX structure and X509_AUX
7675 functions. An X509_AUX function such as PEM_read_X509_AUX()
7676 can still read in a certificate file in the usual way but it
7677 will also read in any additional "auxiliary information". By
7678 doing things this way a fair degree of compatibility can be
7679 retained: existing certificates can have this information added
7680 using the new 'x509' options.
7682 Current auxiliary information includes an "alias" and some trust
7683 settings. The trust settings will ultimately be used in enhanced
7684 certificate chain verification routines: currently a certificate
7685 can only be trusted if it is self signed and then it is trusted
7689 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7690 The problem was that one of the replacement routines had not been working
7691 since SSLeay releases. For now the offending routine has been replaced
7692 with non-optimised assembler. Even so, this now gives around 95%
7693 performance improvement for 1024 bit RSA signs.
7696 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7697 handling. Most clients have the effective key size in bits equal to
7698 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7699 A few however don't do this and instead use the size of the decrypted key
7700 to determine the RC2 key length and the AlgorithmIdentifier to determine
7701 the effective key length. In this case the effective key length can still
7702 be 40 bits but the key length can be 168 bits for example. This is fixed
7703 by manually forcing an RC2 key into the EVP_PKEY structure because the
7704 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7705 the key length and effective key length are equal.
7708 *) Add a bunch of functions that should simplify the creation of
7709 X509_NAME structures. Now you should be able to do:
7710 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7711 and have it automatically work out the correct field type and fill in
7712 the structures. The more adventurous can try:
7713 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7714 and it will (hopefully) work out the correct multibyte encoding.
7717 *) Change the 'req' utility to use the new field handling and multibyte
7718 copy routines. Before the DN field creation was handled in an ad hoc
7719 way in req, ca, and x509 which was rather broken and didn't support
7720 BMPStrings or UTF8Strings. Since some software doesn't implement
7721 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7722 using the dirstring_type option. See the new comment in the default
7723 openssl.cnf for more info.
7726 *) Make crypto/rand/md_rand.c more robust:
7727 - Assure unique random numbers after fork().
7728 - Make sure that concurrent threads access the global counter and
7729 md serializably so that we never lose entropy in them
7730 or use exactly the same state in multiple threads.
7731 Access to the large state is not always serializable because
7732 the additional locking could be a performance killer, and
7733 md should be large enough anyway.
7736 *) New file apps/app_rand.c with commonly needed functionality
7737 for handling the random seed file.
7739 Use the random seed file in some applications that previously did not:
7741 dsaparam -genkey (which also ignored its '-rand' option),
7744 x509 (when signing).
7745 Except on systems with /dev/urandom, it is crucial to have a random
7746 seed file at least for key creation, DSA signing, and for DH exchanges;
7747 for RSA signatures we could do without one.
7749 gendh and gendsa (unlike genrsa) used to read only the first byte
7750 of each file listed in the '-rand' option. The function as previously
7751 found in genrsa is now in app_rand.c and is used by all programs
7752 that support '-rand'.
7755 *) In RAND_write_file, use mode 0600 for creating files;
7756 don't just chmod when it may be too late.
7759 *) Report an error from X509_STORE_load_locations
7760 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7763 *) New function ASN1_mbstring_copy() this copies a string in either
7764 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7765 into an ASN1_STRING type. A mask of permissible types is passed
7766 and it chooses the "minimal" type to use or an error if not type
7770 *) Add function equivalents to the various macros in asn1.h. The old
7771 macros are retained with an M_ prefix. Code inside the library can
7772 use the M_ macros. External code (including the openssl utility)
7773 should *NOT* in order to be "shared library friendly".
7776 *) Add various functions that can check a certificate's extensions
7777 to see if it usable for various purposes such as SSL client,
7778 server or S/MIME and CAs of these types. This is currently
7779 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7780 verification. Also added a -purpose flag to x509 utility to
7781 print out all the purposes.
7784 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7788 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7789 for, obtain and decode and extension and obtain its critical flag.
7790 This allows all the necessary extension code to be handled in a
7791 single function call.
7794 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7795 platforms. See crypto/rc4/rc4_enc.c for further details.
7798 *) New -noout option to asn1parse. This causes no output to be produced
7799 its main use is when combined with -strparse and -out to extract data
7800 from a file (which may not be in ASN.1 format).
7803 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7804 when producing the local key id.
7805 [Richard Levitte <levitte@stacken.kth.se>]
7807 *) New option -dhparam in s_server. This allows a DH parameter file to be
7808 stated explicitly. If it is not stated then it tries the first server
7809 certificate file. The previous behaviour hard coded the filename
7813 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7814 a public key to be input or output. For example:
7815 openssl rsa -in key.pem -pubout -out pubkey.pem
7816 Also added necessary DSA public key functions to handle this.
7819 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7820 in the message. This was handled by allowing
7821 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7822 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7824 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7825 to the end of the strings whereas this didn't. This would cause problems
7826 if strings read with d2i_ASN1_bytes() were later modified.
7827 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7829 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7830 data and it contains EOF it will end up returning an error. This is
7831 caused by input 46 bytes long. The cause is due to the way base64
7832 BIOs find the start of base64 encoded data. They do this by trying a
7833 trial decode on each line until they find one that works. When they
7834 do a flag is set and it starts again knowing it can pass all the
7835 data directly through the decoder. Unfortunately it doesn't reset
7836 the context it uses. This means that if EOF is reached an attempt
7837 is made to pass two EOFs through the context and this causes the
7838 resulting error. This can also cause other problems as well. As is
7839 usual with these problems it takes *ages* to find and the fix is
7840 trivial: move one line.
7841 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7843 *) Ugly workaround to get s_client and s_server working under Windows. The
7844 old code wouldn't work because it needed to select() on sockets and the
7845 tty (for keypresses and to see if data could be written). Win32 only
7846 supports select() on sockets so we select() with a 1s timeout on the
7847 sockets and then see if any characters are waiting to be read, if none
7848 are present then we retry, we also assume we can always write data to
7849 the tty. This isn't nice because the code then blocks until we've
7850 received a complete line of data and it is effectively polling the
7851 keyboard at 1s intervals: however it's quite a bit better than not
7852 working at all :-) A dedicated Windows application might handle this
7853 with an event loop for example.
7856 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7857 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7858 will be called when RSA_sign() and RSA_verify() are used. This is useful
7859 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7860 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7861 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7862 This necessitated the support of an extra signature type NID_md5_sha1
7863 for SSL signatures and modifications to the SSL library to use it instead
7864 of calling RSA_public_decrypt() and RSA_private_encrypt().
7867 *) Add new -verify -CAfile and -CApath options to the crl program, these
7868 will lookup a CRL issuers certificate and verify the signature in a
7869 similar way to the verify program. Tidy up the crl program so it
7870 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7871 less strict. It will now permit CRL extensions even if it is not
7872 a V2 CRL: this will allow it to tolerate some broken CRLs.
7875 *) Initialize all non-automatic variables each time one of the openssl
7876 sub-programs is started (this is necessary as they may be started
7877 multiple times from the "OpenSSL>" prompt).
7878 [Lennart Bang, Bodo Moeller]
7880 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7881 removing all other RSA functionality (this is what NO_RSA does). This
7882 is so (for example) those in the US can disable those operations covered
7883 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7887 *) Non-copying interface to BIO pairs.
7888 (still largely untested)
7891 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7892 ASCII string. This was handled independently in various places before.
7895 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7896 UTF8 strings a character at a time.
7899 *) Use client_version from client hello to select the protocol
7900 (s23_srvr.c) and for RSA client key exchange verification
7901 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7904 *) Add various utility functions to handle SPKACs, these were previously
7905 handled by poking round in the structure internals. Added new function
7906 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7907 print, verify and generate SPKACs. Based on an original idea from
7908 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7911 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7914 *) Allow the config file extension section to be overwritten on the
7915 command line. Based on an original idea from Massimiliano Pala
7916 <madwolf@comune.modena.it>. The new option is called -extensions
7917 and can be applied to ca, req and x509. Also -reqexts to override
7918 the request extensions in req and -crlexts to override the crl extensions
7922 *) Add new feature to the SPKAC handling in ca. Now you can include
7923 the same field multiple times by preceding it by "XXXX." for example:
7926 this is the same syntax as used in the req config file.
7929 *) Allow certificate extensions to be added to certificate requests. These
7930 are specified in a 'req_extensions' option of the req section of the
7931 config file. They can be printed out with the -text option to req but
7932 are otherwise ignored at present.
7935 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7936 data read consists of only the final block it would not decrypted because
7937 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7938 A misplaced 'break' also meant the decrypted final block might not be
7939 copied until the next read.
7942 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7943 a few extra parameters to the DH structure: these will be useful if
7944 for example we want the value of 'q' or implement X9.42 DH.
7947 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7948 provides hooks that allow the default DSA functions or functions on a
7949 "per key" basis to be replaced. This allows hardware acceleration and
7950 hardware key storage to be handled without major modification to the
7951 library. Also added low level modexp hooks and CRYPTO_EX structure and
7952 associated functions.
7955 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7956 as "read only": it can't be written to and the buffer it points to will
7957 not be freed. Reading from a read only BIO is much more efficient than
7958 a normal memory BIO. This was added because there are several times when
7959 an area of memory needs to be read from a BIO. The previous method was
7960 to create a memory BIO and write the data to it, this results in two
7961 copies of the data and an O(n^2) reading algorithm. There is a new
7962 function BIO_new_mem_buf() which creates a read only memory BIO from
7963 an area of memory. Also modified the PKCS#7 routines to use read only
7967 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7968 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7969 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7970 but a retry condition occured while trying to read the rest.
7973 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7974 NID_pkcs7_encrypted by default: this was wrong since this should almost
7975 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7976 the encrypted data type: this is a more sensible place to put it and it
7977 allows the PKCS#12 code to be tidied up that duplicated this
7981 *) Changed obj_dat.pl script so it takes its input and output files on
7982 the command line. This should avoid shell escape redirection problems
7986 *) Initial support for certificate extension requests, these are included
7987 in things like Xenroll certificate requests. Included functions to allow
7988 extensions to be obtained and added.
7991 *) -crlf option to s_client and s_server for sending newlines as
7992 CRLF (as required by many protocols).
7995 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7997 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7998 [Ralf S. Engelschall]
8000 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8001 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8003 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8007 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8008 DH parameters/keys (q is lost during that conversion, but the resulting
8009 DH parameters contain its length).
8011 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8012 much faster than DH_generate_parameters (which creates parameters
8013 where p = 2*q + 1), and also the smaller q makes DH computations
8014 much more efficient (160-bit exponentiation instead of 1024-bit
8015 exponentiation); so this provides a convenient way to support DHE
8016 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8017 utter importance to use
8018 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8020 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8021 when such DH parameters are used, because otherwise small subgroup
8022 attacks may become possible!
8025 *) Avoid memory leak in i2d_DHparams.
8028 *) Allow the -k option to be used more than once in the enc program:
8029 this allows the same encrypted message to be read by multiple recipients.
8032 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8033 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8034 it will always use the numerical form of the OID, even if it has a short
8038 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8039 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8040 otherwise bn_mod_exp was called. In the case of hardware keys for example
8041 no private key components need be present and it might store extra data
8042 in the RSA structure, which cannot be accessed from bn_mod_exp.
8043 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8044 private key operations.
8047 *) Added support for SPARC Linux.
8050 *) pem_password_cb function type incompatibly changed from
8051 typedef int pem_password_cb(char *buf, int size, int rwflag);
8053 ....(char *buf, int size, int rwflag, void *userdata);
8054 so that applications can pass data to their callbacks:
8055 The PEM[_ASN1]_{read,write}... functions and macros now take an
8056 additional void * argument, which is just handed through whenever
8057 the password callback is called.
8058 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8060 New function SSL_CTX_set_default_passwd_cb_userdata.
8062 Compatibility note: As many C implementations push function arguments
8063 onto the stack in reverse order, the new library version is likely to
8064 interoperate with programs that have been compiled with the old
8065 pem_password_cb definition (PEM_whatever takes some data that
8066 happens to be on the stack as its last argument, and the callback
8067 just ignores this garbage); but there is no guarantee whatsoever that
8070 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8071 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8072 problems not only on Windows, but also on some Unix platforms.
8073 To avoid problematic command lines, these definitions are now in an
8074 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8075 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8078 *) MIPS III/IV assembler module is reimplemented.
8081 *) More DES library cleanups: remove references to srand/rand and
8082 delete an unused file.
8085 *) Add support for the the free Netwide assembler (NASM) under Win32,
8086 since not many people have MASM (ml) and it can be hard to obtain.
8087 This is currently experimental but it seems to work OK and pass all
8088 the tests. Check out INSTALL.W32 for info.
8091 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8092 without temporary keys kept an extra copy of the server key,
8093 and connections with temporary keys did not free everything in case
8097 *) New function RSA_check_key and new openssl rsa option -check
8098 for verifying the consistency of RSA keys.
8099 [Ulf Moeller, Bodo Moeller]
8101 *) Various changes to make Win32 compile work:
8102 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8103 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8104 comparison" warnings.
8105 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8108 *) Add a debugging option to PKCS#5 v2 key generation function: when
8109 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8110 derived keys are printed to stderr.
8113 *) Copy the flags in ASN1_STRING_dup().
8114 [Roman E. Pavlov <pre@mo.msk.ru>]
8116 *) The x509 application mishandled signing requests containing DSA
8117 keys when the signing key was also DSA and the parameters didn't match.
8119 It was supposed to omit the parameters when they matched the signing key:
8120 the verifying software was then supposed to automatically use the CA's
8121 parameters if they were absent from the end user certificate.
8123 Omitting parameters is no longer recommended. The test was also
8124 the wrong way round! This was probably due to unusual behaviour in
8125 EVP_cmp_parameters() which returns 1 if the parameters match.
8126 This meant that parameters were omitted when they *didn't* match and
8127 the certificate was useless. Certificates signed with 'ca' didn't have
8129 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8131 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8132 The interface is as follows:
8133 Applications can use
8134 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8135 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8136 "off" is now the default.
8137 The library internally uses
8138 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8139 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8140 to disable memory-checking temporarily.
8142 Some inconsistent states that previously were possible (and were
8143 even the default) are now avoided.
8145 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8146 with each memory chunk allocated; this is occasionally more helpful
8147 than just having a counter.
8149 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8151 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8155 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8156 which largely parallels "options", but is for changing API behaviour,
8157 whereas "options" are about protocol behaviour.
8158 Initial "mode" flags are:
8160 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8161 a single record has been written.
8162 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8163 retries use the same buffer location.
8164 (But all of the contents must be
8168 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8171 *) Fix problems with no-hmac etc.
8172 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8174 *) New functions RSA_get_default_method(), RSA_set_method() and
8175 RSA_get_method(). These allows replacement of RSA_METHODs without having
8176 to mess around with the internals of an RSA structure.
8179 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8180 Also really enable memory leak checks in openssl.c and in some
8182 [Chad C. Mulligan, Bodo Moeller]
8184 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8185 up the length of negative integers. This has now been simplified to just
8186 store the length when it is first determined and use it later, rather
8187 than trying to keep track of where data is copied and updating it to
8189 [Steve Henson, reported by Brien Wheeler
8190 <bwheeler@authentica-security.com>]
8192 *) Add a new function PKCS7_signatureVerify. This allows the verification
8193 of a PKCS#7 signature but with the signing certificate passed to the
8194 function itself. This contrasts with PKCS7_dataVerify which assumes the
8195 certificate is present in the PKCS#7 structure. This isn't always the
8196 case: certificates can be omitted from a PKCS#7 structure and be
8197 distributed by "out of band" means (such as a certificate database).
8200 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8201 function prototypes in pem.h, also change util/mkdef.pl to add the
8202 necessary function names.
8205 *) mk1mf.pl (used by Windows builds) did not properly read the
8206 options set by Configure in the top level Makefile, and Configure
8207 was not even able to write more than one option correctly.
8208 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8211 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8212 file to be loaded from a BIO or FILE pointer. The BIO version will
8213 for example allow memory BIOs to contain config info.
8216 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8217 Whoever hopes to achieve shared-library compatibility across versions
8218 must use this, not the compile-time macro.
8219 (Exercise 0.9.4: Which is the minimum library version required by
8221 Note: All this applies only to multi-threaded programs, others don't
8225 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8226 through a BIO pair triggered the default case, i.e.
8227 SSLerr(...,SSL_R_UNKNOWN_STATE).
8230 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8231 can use the SSL library even if none of the specific BIOs is
8235 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8236 for the encoded length.
8237 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8239 *) Add initial documentation of the X509V3 functions.
8242 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8243 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8244 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8245 secure PKCS#8 private key format with a high iteration count.
8248 *) Fix determination of Perl interpreter: A perl or perl5
8249 _directory_ in $PATH was also accepted as the interpreter.
8250 [Ralf S. Engelschall]
8252 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8253 wrong with it but it was very old and did things like calling
8254 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8258 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8259 to use the new extension code.
8262 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8263 with macros. This should make it easier to change their form, add extra
8264 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8268 *) Add to configuration table a new entry that can specify an alternative
8269 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8270 according to Mark Crispin <MRC@Panda.COM>.
8274 *) DES CBC did not update the IV. Weird.
8277 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8278 Changing the behaviour of the former might break existing programs --
8279 where IV updating is needed, des_ncbc_encrypt can be used.
8282 *) When bntest is run from "make test" it drives bc to check its
8283 calculations, as well as internally checking them. If an internal check
8284 fails, it needs to cause bc to give a non-zero result or make test carries
8285 on without noticing the failure. Fixed.
8288 *) DES library cleanups.
8291 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8292 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8293 ciphers. NOTE: although the key derivation function has been verified
8294 against some published test vectors it has not been extensively tested
8295 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8299 *) Instead of "mkdir -p", which is not fully portable, use new
8300 Perl script "util/mkdir-p.pl".
8303 *) Rewrite the way password based encryption (PBE) is handled. It used to
8304 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8305 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8306 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8307 the 'parameter' field of the AlgorithmIdentifier is passed to the
8308 underlying key generation function so it must do its own ASN1 parsing.
8309 This has also changed the EVP_PBE_CipherInit() function which now has a
8310 'parameter' argument instead of literal salt and iteration count values
8311 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8314 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8315 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8316 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8317 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8318 value was just used as a "magic string" and not used directly its
8319 value doesn't matter.
8322 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8326 *) "linux-sparc64" configuration (ultrapenguin).
8327 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8328 "linux-sparc" configuration.
8329 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8331 *) config now generates no-xxx options for missing ciphers.
8334 *) Support the EBCDIC character set (work in progress).
8335 File ebcdic.c not yet included because it has a different license.
8336 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8338 *) Support BS2000/OSD-POSIX.
8339 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8341 *) Make callbacks for key generation use void * instead of char *.
8344 *) Make S/MIME samples compile (not yet tested).
8347 *) Additional typesafe stacks.
8350 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8354 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8356 *) New configuration variant "sco5-gcc".
8358 *) Updated some demos.
8359 [Sean O Riordain, Wade Scholine]
8361 *) Add missing BIO_free at exit of pkcs12 application.
8364 *) Fix memory leak in conf.c.
8367 *) Updates for Win32 to assembler version of MD5.
8370 *) Set #! path to perl in apps/der_chop to where we found it
8371 instead of using a fixed path.
8374 *) SHA library changes for irix64-mips4-cc.
8377 *) Improvements for VMS support.
8381 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8383 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8384 This also avoids the problems with SC4.2 and unpatched SC5.
8385 [Andy Polyakov <appro@fy.chalmers.se>]
8387 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8388 These are required because of the typesafe stack would otherwise break
8389 existing code. If old code used a structure member which used to be STACK
8390 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8391 sk_num or sk_value it would produce an error because the num, data members
8392 are not present in STACK_OF. Now it just produces a warning. sk_set
8393 replaces the old method of assigning a value to sk_value
8394 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8395 that does this will no longer work (and should use sk_set instead) but
8396 this could be regarded as a "questionable" behaviour anyway.
8399 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8400 correctly handle encrypted S/MIME data.
8403 *) Change type of various DES function arguments from des_cblock
8404 (which means, in function argument declarations, pointer to char)
8405 to des_cblock * (meaning pointer to array with 8 char elements),
8406 which allows the compiler to do more typechecking; it was like
8407 that back in SSLeay, but with lots of ugly casts.
8409 Introduce new type const_des_cblock.
8412 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8413 problems: find RecipientInfo structure that matches recipient certificate
8414 and initialise the ASN1 structures properly based on passed cipher.
8417 *) Belatedly make the BN tests actually check the results.
8420 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8421 to and from BNs: it was completely broken. New compilation option
8422 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8423 key elements as negative integers.
8426 *) Reorganize and speed up MD5.
8427 [Andy Polyakov <appro@fy.chalmers.se>]
8430 [Richard Levitte <richard@levitte.org>]
8432 *) New option -out to asn1parse to allow the parsed structure to be
8433 output to a file. This is most useful when combined with the -strparse
8434 option to examine the output of things like OCTET STRINGS.
8437 *) Make SSL library a little more fool-proof by not requiring any longer
8438 that SSL_set_{accept,connect}_state be called before
8439 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8440 in many applications because usually everything *appeared* to work as
8441 intended anyway -- now it really works as intended).
8444 *) Move openssl.cnf out of lib/.
8447 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8448 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8449 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8450 [Ralf S. Engelschall]
8452 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8453 handle PKCS#7 enveloped data properly.
8454 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8456 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8457 copying pointers. The cert_st handling is changed by this in
8458 various ways (and thus what used to be known as ctx->default_cert
8459 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8460 any longer when s->cert does not give us what we need).
8461 ssl_cert_instantiate becomes obsolete by this change.
8462 As soon as we've got the new code right (possibly it already is?),
8463 we have solved a couple of bugs of the earlier code where s->cert
8464 was used as if it could not have been shared with other SSL structures.
8466 Note that using the SSL API in certain dirty ways now will result
8467 in different behaviour than observed with earlier library versions:
8468 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8469 does not influence s as it used to.
8471 In order to clean up things more thoroughly, inside SSL_SESSION
8472 we don't use CERT any longer, but a new structure SESS_CERT
8473 that holds per-session data (if available); currently, this is
8474 the peer's certificate chain and, for clients, the server's certificate
8475 and temporary key. CERT holds only those values that can have
8476 meaningful defaults in an SSL_CTX.
8479 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8480 from the internal representation. Various PKCS#7 fixes: remove some
8481 evil casts and set the enc_dig_alg field properly based on the signing
8485 *) Allow PKCS#12 password to be set from the command line or the
8486 environment. Let 'ca' get its config file name from the environment
8487 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8491 *) Allow certificate policies extension to use an IA5STRING for the
8492 organization field. This is contrary to the PKIX definition but
8493 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8497 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8498 without disallowing inline assembler and the like for non-pedantic builds.
8501 *) Support Borland C++ builder.
8502 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8507 *) SHA-1 cleanups and performance enhancements.
8508 [Andy Polyakov <appro@fy.chalmers.se>]
8510 *) Sparc v8plus assembler for the bignum library.
8511 [Andy Polyakov <appro@fy.chalmers.se>]
8513 *) Accept any -xxx and +xxx compiler options in Configure.
8516 *) Update HPUX configuration.
8519 *) Add missing sk_<type>_unshift() function to safestack.h
8520 [Ralf S. Engelschall]
8522 *) New function SSL_CTX_use_certificate_chain_file that sets the
8523 "extra_cert"s in addition to the certificate. (This makes sense
8524 only for "PEM" format files, as chains as a whole are not
8528 *) Support verify_depth from the SSL API.
8529 x509_vfy.c had what can be considered an off-by-one-error:
8530 Its depth (which was not part of the external interface)
8531 was actually counting the number of certificates in a chain;
8532 now it really counts the depth.
8535 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8536 instead of X509err, which often resulted in confusing error
8537 messages since the error codes are not globally unique
8538 (e.g. an alleged error in ssl3_accept when a certificate
8539 didn't match the private key).
8541 *) New function SSL_CTX_set_session_id_context that allows to set a default
8542 value (so that you don't need SSL_set_session_id_context for each
8543 connection using the SSL_CTX).
8546 *) OAEP decoding bug fix.
8549 *) Support INSTALL_PREFIX for package builders, as proposed by
8553 *) New Configure options "threads" and "no-threads". For systems
8554 where the proper compiler options are known (currently Solaris
8555 and Linux), "threads" is the default.
8558 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8561 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8562 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8563 such as /usr/local/bin.
8566 *) "make linux-shared" to build shared libraries.
8567 [Niels Poppe <niels@netbox.org>]
8569 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8572 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8573 extension adding in x509 utility.
8576 *) Remove NOPROTO sections and error code comments.
8579 *) Partial rewrite of the DEF file generator to now parse the ANSI
8583 *) New Configure options --prefix=DIR and --openssldir=DIR.
8586 *) Complete rewrite of the error code script(s). It is all now handled
8587 by one script at the top level which handles error code gathering,
8588 header rewriting and C source file generation. It should be much better
8589 than the old method: it now uses a modified version of Ulf's parser to
8590 read the ANSI prototypes in all header files (thus the old K&R definitions
8591 aren't needed for error creation any more) and do a better job of
8592 translating function codes into names. The old 'ASN1 error code imbedded
8593 in a comment' is no longer necessary and it doesn't use .err files which
8594 have now been deleted. Also the error code call doesn't have to appear all
8595 on one line (which resulted in some large lines...).
8598 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8601 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8602 0 (which usually indicates a closed connection), but continue reading.
8605 *) Fix some race conditions.
8608 *) Add support for CRL distribution points extension. Add Certificate
8609 Policies and CRL distribution points documentation.
8612 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8615 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8616 8 of keying material. Merlin has also confirmed interop with this fix
8617 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8618 [Merlin Hughes <merlin@baltimore.ie>]
8620 *) Fix lots of warnings.
8621 [Richard Levitte <levitte@stacken.kth.se>]
8623 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8624 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8625 [Richard Levitte <levitte@stacken.kth.se>]
8627 *) Fix problems with sizeof(long) == 8.
8628 [Andy Polyakov <appro@fy.chalmers.se>]
8630 *) Change functions to ANSI C.
8633 *) Fix typos in error codes.
8634 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8636 *) Remove defunct assembler files from Configure.
8639 *) SPARC v8 assembler BIGNUM implementation.
8640 [Andy Polyakov <appro@fy.chalmers.se>]
8642 *) Support for Certificate Policies extension: both print and set.
8643 Various additions to support the r2i method this uses.
8646 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8647 return a const string when you are expecting an allocated buffer.
8650 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8651 types DirectoryString and DisplayText.
8654 *) Add code to allow r2i extensions to access the configuration database,
8655 add an LHASH database driver and add several ctx helper functions.
8658 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8659 fail when they extended the size of a BIGNUM.
8662 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8663 support typesafe stack.
8666 *) Fix typo in SSL_[gs]et_options().
8667 [Nils Frostberg <nils@medcom.se>]
8669 *) Delete various functions and files that belonged to the (now obsolete)
8670 old X509V3 handling code.
8673 *) New Configure option "rsaref".
8676 *) Don't auto-generate pem.h.
8679 *) Introduce type-safe ASN.1 SETs.
8682 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8683 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8685 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8686 that links with OpenSSL (well at least cause lots of warnings), but fear
8687 not: the conversion is trivial, and it eliminates loads of evil casts. A
8688 few STACKed things have been converted already. Feel free to convert more.
8689 In the fullness of time, I'll do away with the STACK type altogether.
8692 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8693 specified in <certfile> by updating the entry in the index.txt file.
8694 This way one no longer has to edit the index.txt file manually for
8695 revoking a certificate. The -revoke option does the gory details now.
8696 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8698 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8699 `-text' option at all and this way the `-noout -text' combination was
8700 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8701 [Ralf S. Engelschall]
8703 *) Make sure a corresponding plain text error message exists for the
8704 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8705 verify callback function determined that a certificate was revoked.
8706 [Ralf S. Engelschall]
8708 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8709 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8710 all available cipers including rc5, which was forgotten until now.
8711 In order to let the testing shell script know which algorithms
8712 are available, a new (up to now undocumented) command
8713 "openssl list-cipher-commands" is used.
8716 *) Bugfix: s_client occasionally would sleep in select() when
8717 it should have checked SSL_pending() first.
8720 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8721 the raw DSA values prior to ASN.1 encoding.
8724 *) Tweaks to Configure
8725 [Niels Poppe <niels@netbox.org>]
8727 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8731 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8734 *) New config option to avoid instructions that are illegal on the 80386.
8735 The default code is faster, but requires at least a 486.
8738 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8739 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8740 same as SSL2_VERSION anyway.
8743 *) New "-showcerts" option for s_client.
8746 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8747 application. Various cleanups and fixes.
8750 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8751 modify error routines to work internally. Add error codes and PBE init
8752 to library startup routines.
8755 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8756 packing functions to asn1 and evp. Changed function names and error
8757 codes along the way.
8760 *) PKCS12 integration: and so it begins... First of several patches to
8761 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8762 objects to objects.h
8765 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8766 and display support for Thawte strong extranet extension.
8769 *) Add LinuxPPC support.
8770 [Jeff Dubrule <igor@pobox.org>]
8772 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8773 bn_div_words in alpha.s.
8774 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8776 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8777 OAEP isn't supported when OpenSSL is built with RSAref.
8778 [Ulf Moeller <ulf@fitug.de>]
8780 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8781 so they no longer are missing under -DNOPROTO.
8782 [Soren S. Jorvang <soren@t.dk>]
8785 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8787 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8788 doesn't work when the session is reused. Coming soon!
8791 *) Fix a security hole, that allows sessions to be reused in the wrong
8792 context thus bypassing client cert protection! All software that uses
8793 client certs and session caches in multiple contexts NEEDS PATCHING to
8794 allow session reuse! A fuller solution is in the works.
8795 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8797 *) Some more source tree cleanups (removed obsolete files
8798 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8799 permission on "config" script to be executable) and a fix for the INSTALL
8801 [Ulf Moeller <ulf@fitug.de>]
8803 *) Remove some legacy and erroneous uses of malloc, free instead of
8805 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8807 *) Make rsa_oaep_test return non-zero on error.
8808 [Ulf Moeller <ulf@fitug.de>]
8810 *) Add support for native Solaris shared libraries. Configure
8811 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8812 if someone would make that last step automatic.
8813 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8815 *) ctx_size was not built with the right compiler during "make links". Fixed.
8818 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8819 except NULL ciphers". This means the default cipher list will no longer
8820 enable NULL ciphers. They need to be specifically enabled e.g. with
8821 the string "DEFAULT:eNULL".
8824 *) Fix to RSA private encryption routines: if p < q then it would
8825 occasionally produce an invalid result. This will only happen with
8826 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8829 *) Be less restrictive and allow also `perl util/perlpath.pl
8830 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8831 because this way one can also use an interpreter named `perl5' (which is
8832 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8833 installed as `perl').
8834 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8836 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8837 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8839 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8840 advapi32.lib to Win32 build and change the pem test comparision
8841 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8842 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8843 and crypto/des/ede_cbcm_enc.c.
8846 *) DES quad checksum was broken on big-endian architectures. Fixed.
8849 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8850 Win32 test batch file so it (might) work again. The Win32 test batch file
8851 is horrible: I feel ill....
8854 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8855 in e_os.h. Audit of header files to check ANSI and non ANSI
8856 sections: 10 functions were absent from non ANSI section and not exported
8857 from Windows DLLs. Fixed up libeay.num for new functions.
8860 *) Make `openssl version' output lines consistent.
8861 [Ralf S. Engelschall]
8863 *) Fix Win32 symbol export lists for BIO functions: Added
8864 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8865 to ms/libeay{16,32}.def.
8866 [Ralf S. Engelschall]
8868 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8869 fine under Unix and passes some trivial tests I've now added. But the
8870 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8871 added to make sure no one expects that this stuff really works in the
8872 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8873 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8875 [Ralf S. Engelschall]
8877 *) Fix the generation of two part addresses in perl.
8878 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8880 *) Add config entry for Linux on MIPS.
8881 [John Tobey <jtobey@channel1.com>]
8883 *) Make links whenever Configure is run, unless we are on Windoze.
8886 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8887 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8891 *) Add a useful kludge to allow package maintainers to specify compiler and
8892 other platforms details on the command line without having to patch the
8893 Configure script everytime: One now can use ``perl Configure
8894 <id>:<details>'', i.e. platform ids are allowed to have details appended
8895 to them (seperated by colons). This is treated as there would be a static
8896 pre-configured entry in Configure's %table under key <id> with value
8897 <details> and ``perl Configure <id>'' is called. So, when you want to
8898 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8899 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8900 now, which overrides the FreeBSD-elf entry on-the-fly.
8901 [Ralf S. Engelschall]
8903 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8906 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8907 on the `perl Configure ...' command line. This way one can compile
8908 OpenSSL libraries with Position Independent Code (PIC) which is needed
8909 for linking it into DSOs.
8910 [Ralf S. Engelschall]
8912 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8916 *) Cleaned up the LICENSE document: The official contact for any license
8917 questions now is the OpenSSL core team under openssl-core@openssl.org.
8918 And add a paragraph about the dual-license situation to make sure people
8919 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8920 to the OpenSSL toolkit.
8921 [Ralf S. Engelschall]
8923 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8924 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8925 Additonally cleaned up the `make links' target: Remove unnecessary
8926 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8927 to speed processing and no longer clutter the display with confusing
8928 stuff. Instead only the actually done links are displayed.
8929 [Ralf S. Engelschall]
8931 *) Permit null encryption ciphersuites, used for authentication only. It used
8932 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8933 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8937 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8938 signed attributes when verifying signatures (this would break them),
8939 the detached data encoding was wrong and public keys obtained using
8940 X509_get_pubkey() weren't freed.
8943 *) Add text documentation for the BUFFER functions. Also added a work around
8944 to a Win95 console bug. This was triggered by the password read stuff: the
8945 last character typed gets carried over to the next fread(). If you were
8946 generating a new cert request using 'req' for example then the last
8947 character of the passphrase would be CR which would then enter the first
8951 *) Added the new `Includes OpenSSL Cryptography Software' button as
8952 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8953 button and can be used by applications based on OpenSSL to show the
8954 relationship to the OpenSSL project.
8955 [Ralf S. Engelschall]
8957 *) Remove confusing variables in function signatures in files
8958 ssl/ssl_lib.c and ssl/ssl.h.
8959 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8961 *) Don't install bss_file.c under PREFIX/include/
8962 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8964 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8965 functions that return function pointers and has support for NT specific
8966 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8967 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8968 unsigned to signed types: this was killing the Win32 compile.
8971 *) Add new certificate file to stack functions,
8972 SSL_add_dir_cert_subjects_to_stack() and
8973 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8974 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8975 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8976 This means that Apache-SSL and similar packages don't have to mess around
8977 to add as many CAs as they want to the preferred list.
8980 *) Experiment with doxygen documentation. Currently only partially applied to
8982 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8983 openssl.doxy as the configuration file.
8986 *) Get rid of remaining C++-style comments which strict C compilers hate.
8987 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8989 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8990 compiled in by default: it has problems with large keys.
8993 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8994 DH private keys and/or callback functions which directly correspond to
8995 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8996 is needed for applications which have to configure certificates on a
8997 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8999 For the RSA certificate situation is makes no difference, but
9000 for the DSA certificate situation this fixes the "no shared cipher"
9001 problem where the OpenSSL cipher selection procedure failed because the
9002 temporary keys were not overtaken from the context and the API provided
9003 no way to reconfigure them.
9004 The new functions now let applications reconfigure the stuff and they
9005 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9006 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9007 non-public-API function ssl_cert_instantiate() is used as a helper
9008 function and also to reduce code redundancy inside ssl_rsa.c.
9009 [Ralf S. Engelschall]
9011 *) Move s_server -dcert and -dkey options out of the undocumented feature
9012 area because they are useful for the DSA situation and should be
9013 recognized by the users.
9014 [Ralf S. Engelschall]
9016 *) Fix the cipher decision scheme for export ciphers: the export bits are
9017 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9018 SSL_EXP_MASK. So, the original variable has to be used instead of the
9019 already masked variable.
9020 [Richard Levitte <levitte@stacken.kth.se>]
9022 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9023 [Richard Levitte <levitte@stacken.kth.se>]
9025 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9026 from `int' to `unsigned int' because it's a length and initialized by
9027 EVP_DigestFinal() which expects an `unsigned int *'.
9028 [Richard Levitte <levitte@stacken.kth.se>]
9030 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9031 script. Instead use the usual Shell->Perl transition trick.
9032 [Ralf S. Engelschall]
9034 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9035 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9036 -noout -modulus' as it's already the case for `openssl rsa -noout
9037 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9038 currently the public key is printed (a decision which was already done by
9039 `openssl dsa -modulus' in the past) which serves a similar purpose.
9040 Additionally the NO_RSA no longer completely removes the whole -modulus
9041 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9043 [Ralf S. Engelschall]
9045 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9046 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9047 [Arne Ansper <arne@ats.cyber.ee>]
9049 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9050 to be added. Now both 'req' and 'ca' can use new objects defined in the
9054 *) Add cool BIO that does syslog (or event log on NT).
9055 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9057 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9058 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9059 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9060 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9063 *) Add preliminary config info for new extension code.
9066 *) Make RSA_NO_PADDING really use no padding.
9067 [Ulf Moeller <ulf@fitug.de>]
9069 *) Generate errors when private/public key check is done.
9072 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9073 for some CRL extensions and new objects added.
9076 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9077 key usage extension and fuller support for authority key id.
9080 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9081 padding method for RSA, which is recommended for new applications in PKCS
9082 #1 v2.0 (RFC 2437, October 1998).
9083 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9084 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9085 against Bleichbacher's attack on RSA.
9086 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9089 *) Updates to the new SSL compression code
9090 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9092 *) Fix so that the version number in the master secret, when passed
9093 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9094 (because the server will not accept higher), that the version number
9095 is 0x03,0x01, not 0x03,0x00
9096 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9098 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9099 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9100 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9103 *) Support for RAW extensions where an arbitrary extension can be
9104 created by including its DER encoding. See apps/openssl.cnf for
9108 *) Make sure latest Perl versions don't interpret some generated C array
9109 code as Perl array code in the crypto/err/err_genc.pl script.
9110 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9112 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9113 not many people have the assembler. Various Win32 compilation fixes and
9114 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9118 *) Modify configure script 'Configure' to automatically create crypto/date.h
9119 file under Win32 and also build pem.h from pem.org. New script
9120 util/mkfiles.pl to create the MINFO file on environments that can't do a
9121 'make files': perl util/mkfiles.pl >MINFO should work.
9124 *) Major rework of DES function declarations, in the pursuit of correctness
9125 and purity. As a result, many evil casts evaporated, and some weirdness,
9126 too. You may find this causes warnings in your code. Zapping your evil
9127 casts will probably fix them. Mostly.
9130 *) Fix for a typo in asn1.h. Bug fix to object creation script
9131 obj_dat.pl. It considered a zero in an object definition to mean
9132 "end of object": none of the objects in objects.h have any zeros
9133 so it wasn't spotted.
9134 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9136 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9137 Masking (CBCM). In the absence of test vectors, the best I have been able
9138 to do is check that the decrypt undoes the encrypt, so far. Send me test
9139 vectors if you have them.
9142 *) Correct calculation of key length for export ciphers (too much space was
9143 allocated for null ciphers). This has not been tested!
9146 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9147 message is now correct (it understands "crypto" and "ssl" on its
9148 command line). There is also now an "update" option. This will update
9149 the util/ssleay.num and util/libeay.num files with any new functions.
9151 perl util/mkdef.pl crypto ssl update
9152 it will update them.
9155 *) Overhauled the Perl interface (perl/*):
9156 - ported BN stuff to OpenSSL's different BN library
9157 - made the perl/ source tree CVS-aware
9158 - renamed the package from SSLeay to OpenSSL (the files still contain
9159 their history because I've copied them in the repository)
9160 - removed obsolete files (the test scripts will be replaced
9161 by better Test::Harness variants in the future)
9162 [Ralf S. Engelschall]
9164 *) First cut for a very conservative source tree cleanup:
9165 1. merge various obsolete readme texts into doc/ssleay.txt
9166 where we collect the old documents and readme texts.
9167 2. remove the first part of files where I'm already sure that we no
9168 longer need them because of three reasons: either they are just temporary
9169 files which were left by Eric or they are preserved original files where
9170 I've verified that the diff is also available in the CVS via "cvs diff
9171 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9172 the crypto/md/ stuff).
9173 [Ralf S. Engelschall]
9175 *) More extension code. Incomplete support for subject and issuer alt
9176 name, issuer and authority key id. Change the i2v function parameters
9177 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9178 what that's for :-) Fix to ASN1 macro which messed up
9179 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9182 *) Preliminary support for ENUMERATED type. This is largely copied from the
9186 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9187 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9189 *) Make sure `make rehash' target really finds the `openssl' program.
9190 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9192 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9193 like to hear about it if this slows down other processors.
9196 *) Add CygWin32 platform information to Configure script.
9197 [Alan Batie <batie@aahz.jf.intel.com>]
9199 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9200 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9202 *) New program nseq to manipulate netscape certificate sequences
9205 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9209 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9210 but the BN code had some problems that would cause failures when
9211 doing certificate verification and some other functions.
9212 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9214 *) Add ASN1 and PEM code to support netscape certificate sequences.
9217 *) Add ASN1 and PEM code to support netscape certificate sequences.
9220 *) Add several PKIX and private extended key usage OIDs.
9223 *) Modify the 'ca' program to handle the new extension code. Modify
9224 openssl.cnf for new extension format, add comments.
9227 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9228 and add a sample to openssl.cnf so req -x509 now adds appropriate
9232 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9233 error code, add initial support to X509_print() and x509 application.
9236 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9237 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9238 stuff is currently isolated and isn't even compiled yet.
9241 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9242 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9243 Removed the versions check from X509 routines when loading extensions:
9244 this allows certain broken certificates that don't set the version
9245 properly to be processed.
9248 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9249 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9250 can still be regenerated with "make depend".
9253 *) Spelling mistake in C version of CAST-128.
9254 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9256 *) Changes to the error generation code. The perl script err-code.pl
9257 now reads in the old error codes and retains the old numbers, only
9258 adding new ones if necessary. It also only changes the .err files if new
9259 codes are added. The makefiles have been modified to only insert errors
9260 when needed (to avoid needlessly modifying header files). This is done
9261 by only inserting errors if the .err file is newer than the auto generated
9262 C file. To rebuild all the error codes from scratch (the old behaviour)
9263 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9264 or delete all the .err files.
9267 *) CAST-128 was incorrectly implemented for short keys. The C version has
9268 been fixed, but is untested. The assembler versions are also fixed, but
9269 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9270 to regenerate it if needed.
9271 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9272 Hagino <itojun@kame.net>]
9274 *) File was opened incorrectly in randfile.c.
9275 [Ulf Möller <ulf@fitug.de>]
9277 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9278 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9279 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9280 al: it's just almost always a UTCTime. Note this patch adds new error
9281 codes so do a "make errors" if there are problems.
9284 *) Correct Linux 1 recognition in config.
9285 [Ulf Möller <ulf@fitug.de>]
9287 *) Remove pointless MD5 hash when using DSA keys in ca.
9288 [Anonymous <nobody@replay.com>]
9290 *) Generate an error if given an empty string as a cert directory. Also
9291 generate an error if handed NULL (previously returned 0 to indicate an
9292 error, but didn't set one).
9293 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9295 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9298 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9299 parameters. This was causing a warning which killed off the Win32 compile.
9302 *) Remove C++ style comments from crypto/bn/bn_local.h.
9303 [Neil Costigan <neil.costigan@celocom.com>]
9305 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9306 based on a text string, looking up short and long names and finally
9307 "dot" format. The "dot" format stuff didn't work. Added new function
9308 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9309 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9310 OID is not part of the table.
9313 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9314 X509_LOOKUP_by_alias().
9317 *) Sort openssl functions by name.
9320 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9321 encryption from sample DSA keys (in case anyone is interested the password
9325 *) Make _all_ *_free functions accept a NULL pointer.
9326 [Frans Heymans <fheymans@isaserver.be>]
9328 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9330 [Anonymous <nobody@replay.com>]
9332 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9333 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9335 *) Don't blow it for numeric -newkey arguments to apps/req.
9336 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9338 *) Temp key "for export" tests were wrong in s3_srvr.c.
9339 [Anonymous <nobody@replay.com>]
9341 *) Add prototype for temp key callback functions
9342 SSL_CTX_set_tmp_{rsa,dh}_callback().
9345 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9346 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9349 *) X509_name_add_entry() freed the wrong thing after an error.
9350 [Arne Ansper <arne@ats.cyber.ee>]
9352 *) rsa_eay.c would attempt to free a NULL context.
9353 [Arne Ansper <arne@ats.cyber.ee>]
9355 *) BIO_s_socket() had a broken should_retry() on Windoze.
9356 [Arne Ansper <arne@ats.cyber.ee>]
9358 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9359 [Arne Ansper <arne@ats.cyber.ee>]
9361 *) Make sure the already existing X509_STORE->depth variable is initialized
9362 in X509_STORE_new(), but document the fact that this variable is still
9363 unused in the certificate verification process.
9364 [Ralf S. Engelschall]
9366 *) Fix the various library and apps files to free up pkeys obtained from
9367 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9370 *) Fix reference counting in X509_PUBKEY_get(). This makes
9371 demos/maurice/example2.c work, amongst others, probably.
9372 [Steve Henson and Ben Laurie]
9374 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9375 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9376 are no longer created. This way we have a single and consistent command
9377 line interface `openssl <command>', similar to `cvs <command>'.
9378 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9380 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9381 BIT STRING wrapper always have zero unused bits.
9384 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9387 *) Make the top-level INSTALL documentation easier to understand.
9390 *) Makefiles updated to exit if an error occurs in a sub-directory
9391 make (including if user presses ^C) [Paul Sutton]
9393 *) Make Montgomery context stuff explicit in RSA data structure.
9396 *) Fix build order of pem and err to allow for generated pem.h.
9399 *) Fix renumbering bug in X509_NAME_delete_entry().
9402 *) Enhanced the err-ins.pl script so it makes the error library number
9403 global and can add a library name. This is needed for external ASN1 and
9404 other error libraries.
9407 *) Fixed sk_insert which never worked properly.
9410 *) Fix ASN1 macros so they can handle indefinite length construted
9411 EXPLICIT tags. Some non standard certificates use these: they can now
9415 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9416 into a single doc/ssleay.txt bundle. This way the information is still
9417 preserved but no longer messes up this directory. Now it's new room for
9418 the new set of documenation files.
9419 [Ralf S. Engelschall]
9421 *) SETs were incorrectly DER encoded. This was a major pain, because they
9422 shared code with SEQUENCEs, which aren't coded the same. This means that
9423 almost everything to do with SETs or SEQUENCEs has either changed name or
9424 number of arguments.
9425 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9427 *) Fix test data to work with the above.
9430 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9431 was already fixed by Eric for 0.9.1 it seems.
9432 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9434 *) Autodetect FreeBSD3.
9437 *) Fix various bugs in Configure. This affects the following platforms:
9441 unixware-2.0-pentium
9445 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9446 before they are needed.
9449 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9453 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9455 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9456 changed SSLeay to OpenSSL in version strings.
9457 [Ralf S. Engelschall]
9459 *) Some fixups to the top-level documents.
9462 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9463 because the symlink to include/ was missing.
9464 [Ralf S. Engelschall]
9466 *) Incorporated the popular no-RSA/DSA-only patches
9467 which allow to compile a RSA-free SSLeay.
9468 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9470 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9471 when "ssleay" is still not found.
9472 [Ralf S. Engelschall]
9474 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9475 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9477 *) Updated the README file.
9478 [Ralf S. Engelschall]
9480 *) Added various .cvsignore files in the CVS repository subdirs
9481 to make a "cvs update" really silent.
9482 [Ralf S. Engelschall]
9484 *) Recompiled the error-definition header files and added
9485 missing symbols to the Win32 linker tables.
9486 [Ralf S. Engelschall]
9488 *) Cleaned up the top-level documents;
9489 o new files: CHANGES and LICENSE
9490 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9491 o merged COPYRIGHT into LICENSE
9492 o removed obsolete TODO file
9493 o renamed MICROSOFT to INSTALL.W32
9494 [Ralf S. Engelschall]
9496 *) Removed dummy files from the 0.9.1b source tree:
9497 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9498 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9499 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9500 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9501 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9502 [Ralf S. Engelschall]
9504 *) Added various platform portability fixes.
9507 *) The Genesis of the OpenSSL rpject:
9508 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9509 Young and Tim J. Hudson created while they were working for C2Net until
9511 [The OpenSSL Project]
9514 Changes between 0.9.0b and 0.9.1b [not released]
9516 *) Updated a few CA certificates under certs/
9519 *) Changed some BIGNUM api stuff.
9522 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9523 DGUX x86, Linux Alpha, etc.
9526 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9527 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9531 *) Add -strparse option to asn1pars program which parses nested
9533 [Dr Stephen Henson <shenson@bigfoot.com>]
9535 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9538 *) DSA fix for "ca" program.
9541 *) Added "-genkey" option to "dsaparam" program.
9544 *) Added RIPE MD160 (rmd160) message digest.
9547 *) Added -a (all) option to "ssleay version" command.
9550 *) Added PLATFORM define which is the id given to Configure.
9553 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9556 *) Extended the ASN.1 parser routines.
9559 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9562 *) Added a BN_CTX to the BN library.
9565 *) Fixed the weak key values in DES library
9568 *) Changed API in EVP library for cipher aliases.
9571 *) Added support for RC2/64bit cipher.
9574 *) Converted the lhash library to the crypto/mem.c functions.
9577 *) Added more recognized ASN.1 object ids.
9580 *) Added more RSA padding checks for SSL/TLS.
9583 *) Added BIO proxy/filter functionality.
9586 *) Added extra_certs to SSL_CTX which can be used
9587 send extra CA certificates to the client in the CA cert chain sending
9588 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9591 *) Now Fortezza is denied in the authentication phase because
9592 this is key exchange mechanism is not supported by SSLeay at all.
9595 *) Additional PKCS1 checks.
9598 *) Support the string "TLSv1" for all TLS v1 ciphers.
9601 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9602 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9605 *) Fixed a few memory leaks.
9608 *) Fixed various code and comment typos.
9611 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9612 bytes sent in the client random.
9613 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob