5 Changes between 1.0.0h and 1.0.0i [xx XXX xxxx]
7 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
8 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
9 in CRYPTO_realloc_clean.
11 Thanks to Tavis Ormandy, Google Security Team, for discovering this
12 issue and to Adam Langley <agl@chromium.org> for fixing it.
14 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
16 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
18 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
19 in CMS and PKCS7 code. When RSA decryption fails use a random key for
20 content decryption and always return the same error. Note: this attack
21 needs on average 2^20 messages so it only affects automated senders. The
22 old behaviour can be reenabled in the CMS code by setting the
23 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
24 an MMA defence is not necessary.
25 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
26 this issue. (CVE-2012-0884)
29 *) Fix CVE-2011-4619: make sure we really are receiving a
30 client hello before rejecting multiple SGC restarts. Thanks to
31 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
34 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
36 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
37 Thanks to Antonio Martin, Enterprise Secure Access Research and
38 Development, Cisco Systems, Inc. for discovering this bug and
39 preparing a fix. (CVE-2012-0050)
42 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
44 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
45 of the Vaudenay padding oracle attack on CBC mode encryption
46 which enables an efficient plaintext recovery attack against
47 the OpenSSL implementation of DTLS. Their attack exploits timing
48 differences arising during decryption processing. A research
49 paper describing this attack can be found at:
50 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
51 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
52 Security Group at Royal Holloway, University of London
53 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
54 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
55 for preparing the fix. (CVE-2011-4108)
56 [Robin Seggelmann, Michael Tuexen]
58 *) Clear bytes used for block padding of SSL 3.0 records.
60 [Adam Langley (Google)]
62 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
63 Kadianakis <desnacked@gmail.com> for discovering this issue and
64 Adam Langley for preparing the fix. (CVE-2011-4619)
65 [Adam Langley (Google)]
67 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
68 [Andrey Kulikov <amdeich@gmail.com>]
70 *) Prevent malformed RFC3779 data triggering an assertion failure.
71 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
72 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
73 [Rob Austein <sra@hactrn.net>]
75 *) Improved PRNG seeding for VOS.
76 [Paul Green <Paul.Green@stratus.com>]
78 *) Fix ssl_ciph.c set-up race.
79 [Adam Langley (Google)]
81 *) Fix spurious failures in ecdsatest.c.
82 [Emilia Käsper (Google)]
84 *) Fix the BIO_f_buffer() implementation (which was mixing different
85 interpretations of the '..._len' fields).
86 [Adam Langley (Google)]
88 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
89 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
90 threads won't reuse the same blinding coefficients.
92 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
93 lock to call BN_BLINDING_invert_ex, and avoids one use of
94 BN_BLINDING_update for each BN_BLINDING structure (previously,
95 the last update always remained unused).
96 [Emilia Käsper (Google)]
98 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
99 [Bob Buckholz (Google)]
101 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
103 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
104 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
105 [Kaspar Brand <ossl@velox.ch>]
107 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
108 for multi-threaded use of ECDH. (CVE-2011-3210)
109 [Adam Langley (Google)]
111 *) Fix x509_name_ex_d2i memory leak on bad inputs.
114 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
115 signature public key algorithm by using OID xref utilities instead.
116 Before this you could only use some ECC ciphersuites with SHA1 only.
119 *) Add protection against ECDSA timing attacks as mentioned in the paper
120 by Billy Bob Brumley and Nicola Tuveri, see:
122 http://eprint.iacr.org/2011/232.pdf
124 [Billy Bob Brumley and Nicola Tuveri]
126 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
128 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
129 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
131 *) Fix bug in string printing code: if *any* escaping is enabled we must
132 escape the escape character (backslash) or the resulting string is
136 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
138 *) Disable code workaround for ancient and obsolete Netscape browsers
139 and servers: an attacker can use it in a ciphersuite downgrade attack.
140 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
143 *) Fixed J-PAKE implementation error, originally discovered by
144 Sebastien Martini, further info and confirmation from Stefan
145 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
148 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
150 *) Fix extension code to avoid race conditions which can result in a buffer
151 overrun vulnerability: resumed sessions must not be modified as they can
152 be shared by multiple threads. CVE-2010-3864
155 *) Fix WIN32 build system to correctly link an ENGINE directory into
159 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
161 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
163 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
165 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
167 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
168 context. The operation can be customised via the ctrl mechanism in
169 case ENGINEs want to include additional functionality.
172 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
175 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
176 output hashes compatible with older versions of OpenSSL.
177 [Willy Weisz <weisz@vcpc.univie.ac.at>]
179 *) Fix compression algorithm handling: if resuming a session use the
180 compression algorithm of the resumed session instead of determining
181 it from client hello again. Don't allow server to change algorithm.
184 *) Add load_crls() function to apps tidying load_certs() too. Add option
185 to verify utility to allow additional CRLs to be included.
188 *) Update OCSP request code to permit adding custom headers to the request:
189 some responders need this.
192 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
194 [Julia Lawall <julia@diku.dk>]
196 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
197 needlessly dereferenced structures, used obsolete functions and
198 didn't handle all updated verify codes correctly.
201 *) Disable MD2 in the default configuration.
204 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
205 indicate the initial BIO being pushed or popped. This makes it possible
206 to determine whether the BIO is the one explicitly called or as a result
207 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
208 it handles reference counts correctly and doesn't zero out the I/O bio
209 when it is not being explicitly popped. WARNING: applications which
210 included workarounds for the old buggy behaviour will need to be modified
211 or they could free up already freed BIOs.
214 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
215 renaming to all platforms (within the 0.9.8 branch, this was
216 done conditionally on Netware platforms to avoid a name clash).
217 [Guenter <lists@gknw.net>]
219 *) Add ECDHE and PSK support to DTLS.
220 [Michael Tuexen <tuexen@fh-muenster.de>]
222 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
226 *) Add "missing" function EVP_MD_flags() (without this the only way to
227 retrieve a digest flags is by accessing the structure directly. Update
228 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
229 or cipher is registered as in the "from" argument. Print out all
230 registered digests in the dgst usage message instead of manually
231 attempting to work them out.
234 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
235 this allows the use of compression and extensions. Change default cipher
236 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
237 by default unless an application cipher string requests it.
240 *) Alter match criteria in PKCS12_parse(). It used to try to use local
241 key ids to find matching certificates and keys but some PKCS#12 files
242 don't follow the (somewhat unwritten) rules and this strategy fails.
243 Now just gather all certificates together and the first private key
244 then look for the first certificate that matches the key.
247 *) Support use of registered digest and cipher names for dgst and cipher
248 commands instead of having to add each one as a special case. So now
255 openssl dgst -sha256 foo
257 and this works for ENGINE based algorithms too.
261 *) Update Gost ENGINE to support parameter files.
262 [Victor B. Wagner <vitus@cryptocom.ru>]
264 *) Support GeneralizedTime in ca utility.
265 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
267 *) Enhance the hash format used for certificate directory links. The new
268 form uses the canonical encoding (meaning equivalent names will work
269 even if they aren't identical) and uses SHA1 instead of MD5. This form
270 is incompatible with the older format and as a result c_rehash should
271 be used to rebuild symbolic links.
274 *) Make PKCS#8 the default write format for private keys, replacing the
275 traditional format. This form is standardised, more secure and doesn't
276 include an implicit MD5 dependency.
279 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
280 committed to OpenSSL should pass this lot as a minimum.
283 *) Add session ticket override functionality for use by EAP-FAST.
284 [Jouni Malinen <j@w1.fi>]
286 *) Modify HMAC functions to return a value. Since these can be implemented
287 in an ENGINE errors can occur.
290 *) Type-checked OBJ_bsearch_ex.
293 *) Type-checked OBJ_bsearch. Also some constification necessitated
294 by type-checking. Still to come: TXT_DB, bsearch(?),
295 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
299 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
300 seconds to a tm structure directly, instead of going through OS
301 specific date routines. This avoids any issues with OS routines such
302 as the year 2038 bug. New *_adj() functions for ASN1 time structures
303 and X509_time_adj_ex() to cover the extended range. The existing
304 X509_time_adj() is still usable and will no longer have any date issues.
307 *) Delta CRL support. New use deltas option which will attempt to locate
308 and search any appropriate delta CRLs available.
310 This work was sponsored by Google.
313 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
314 code and add additional score elements. Validate alternate CRL paths
315 as part of the CRL checking and indicate a new error "CRL path validation
316 error" in this case. Applications wanting additional details can use
317 the verify callback and check the new "parent" field. If this is not
318 NULL CRL path validation is taking place. Existing applications wont
319 see this because it requires extended CRL support which is off by
322 This work was sponsored by Google.
325 *) Support for freshest CRL extension.
327 This work was sponsored by Google.
330 *) Initial indirect CRL support. Currently only supported in the CRLs
331 passed directly and not via lookup. Process certificate issuer
332 CRL entry extension and lookup CRL entries by bother issuer name
333 and serial number. Check and process CRL issuer entry in IDP extension.
335 This work was sponsored by Google.
338 *) Add support for distinct certificate and CRL paths. The CRL issuer
339 certificate is validated separately in this case. Only enabled if
340 an extended CRL support flag is set: this flag will enable additional
341 CRL functionality in future.
343 This work was sponsored by Google.
346 *) Add support for policy mappings extension.
348 This work was sponsored by Google.
351 *) Fixes to pathlength constraint, self issued certificate handling,
352 policy processing to align with RFC3280 and PKITS tests.
354 This work was sponsored by Google.
357 *) Support for name constraints certificate extension. DN, email, DNS
358 and URI types are currently supported.
360 This work was sponsored by Google.
363 *) To cater for systems that provide a pointer-based thread ID rather
364 than numeric, deprecate the current numeric thread ID mechanism and
365 replace it with a structure and associated callback type. This
366 mechanism allows a numeric "hash" to be extracted from a thread ID in
367 either case, and on platforms where pointers are larger than 'long',
368 mixing is done to help ensure the numeric 'hash' is usable even if it
369 can't be guaranteed unique. The default mechanism is to use "&errno"
370 as a pointer-based thread ID to distinguish between threads.
372 Applications that want to provide their own thread IDs should now use
373 CRYPTO_THREADID_set_callback() to register a callback that will call
374 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
376 Note that ERR_remove_state() is now deprecated, because it is tied
377 to the assumption that thread IDs are numeric. ERR_remove_state(0)
378 to free the current thread's error state should be replaced by
379 ERR_remove_thread_state(NULL).
381 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
382 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
383 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
384 application was previously providing a numeric thread callback that
385 was inappropriate for distinguishing threads, then uniqueness might
386 have been obtained with &errno that happened immediately in the
387 intermediate development versions of OpenSSL; this is no longer the
388 case, the numeric thread callback will now override the automatic use
390 [Geoff Thorpe, with help from Bodo Moeller]
392 *) Initial support for different CRL issuing certificates. This covers a
393 simple case where the self issued certificates in the chain exist and
394 the real CRL issuer is higher in the existing chain.
396 This work was sponsored by Google.
399 *) Removed effectively defunct crypto/store from the build.
402 *) Revamp of STACK to provide stronger type-checking. Still to come:
403 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
404 ASN1_STRING, CONF_VALUE.
407 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
408 RAM on SSL connections. This option can save about 34k per idle SSL.
411 *) Revamp of LHASH to provide stronger type-checking. Still to come:
412 STACK, TXT_DB, bsearch, qsort.
415 *) Initial support for Cryptographic Message Syntax (aka CMS) based
416 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
417 support for data, signedData, compressedData, digestedData and
418 encryptedData, envelopedData types included. Scripts to check against
419 RFC4134 examples draft and interop and consistency checks of many
420 content types and variants.
423 *) Add options to enc utility to support use of zlib compression BIO.
426 *) Extend mk1mf to support importing of options and assembly language
427 files from Configure script, currently only included in VC-WIN32.
428 The assembly language rules can now optionally generate the source
429 files from the associated perl scripts.
432 *) Implement remaining functionality needed to support GOST ciphersuites.
433 Interop testing has been performed using CryptoPro implementations.
434 [Victor B. Wagner <vitus@cryptocom.ru>]
436 *) s390x assembler pack.
439 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
443 *) Implement Opaque PRF Input TLS extension as specified in
444 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
445 official specification yet and no extension type assignment by
446 IANA exists, this extension (for now) will have to be explicitly
447 enabled when building OpenSSL by providing the extension number
448 to use. For example, specify an option
450 -DTLSEXT_TYPE_opaque_prf_input=0x9527
452 to the "config" or "Configure" script to enable the extension,
453 assuming extension number 0x9527 (which is a completely arbitrary
454 and unofficial assignment based on the MD5 hash of the Internet
455 Draft). Note that by doing so, you potentially lose
456 interoperability with other TLS implementations since these might
457 be using the same extension number for other purposes.
459 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
460 opaque PRF input value to use in the handshake. This will create
461 an interal copy of the length-'len' string at 'src', and will
462 return non-zero for success.
464 To get more control and flexibility, provide a callback function
467 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
468 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
472 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
475 Callback function 'cb' will be called in handshakes, and is
476 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
477 Argument 'arg' is for application purposes (the value as given to
478 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
479 be provided to the callback function). The callback function
480 has to return non-zero to report success: usually 1 to use opaque
481 PRF input just if possible, or 2 to enforce use of the opaque PRF
482 input. In the latter case, the library will abort the handshake
483 if opaque PRF input is not successfully negotiated.
485 Arguments 'peerinput' and 'len' given to the callback function
486 will always be NULL and 0 in the case of a client. A server will
487 see the client's opaque PRF input through these variables if
488 available (NULL and 0 otherwise). Note that if the server
489 provides an opaque PRF input, the length must be the same as the
490 length of the client's opaque PRF input.
492 Note that the callback function will only be called when creating
493 a new session (session resumption can resume whatever was
494 previously negotiated), and will not be called in SSL 2.0
495 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
496 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
497 for applications that need to enforce opaque PRF input.
501 *) Update ssl code to support digests other than SHA1+MD5 for handshake
504 [Victor B. Wagner <vitus@cryptocom.ru>]
506 *) Add RFC4507 support to OpenSSL. This includes the corrections in
507 RFC4507bis. The encrypted ticket format is an encrypted encoded
508 SSL_SESSION structure, that way new session features are automatically
511 If a client application caches session in an SSL_SESSION structure
512 support is transparent because tickets are now stored in the encoded
515 The SSL_CTX structure automatically generates keys for ticket
516 protection in servers so again support should be possible
517 with no application modification.
519 If a client or server wishes to disable RFC4507 support then the option
520 SSL_OP_NO_TICKET can be set.
522 Add a TLS extension debugging callback to allow the contents of any client
523 or server extensions to be examined.
525 This work was sponsored by Google.
528 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
529 OpenSSL should now compile cleanly on gcc 4.2
530 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
532 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
533 support including streaming MAC support: this is required for GOST
535 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
537 *) Add option -stream to use PKCS#7 streaming in smime utility. New
538 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
539 to output in BER and PEM format.
542 *) Experimental support for use of HMAC via EVP_PKEY interface. This
543 allows HMAC to be handled via the EVP_DigestSign*() interface. The
544 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
545 ENGINE support for HMAC keys which are unextractable. New -mac and
546 -macopt options to dgst utility.
549 *) New option -sigopt to dgst utility. Update dgst to use
550 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
551 alternative signing paramaters such as X9.31 or PSS in the dgst
555 *) Change ssl_cipher_apply_rule(), the internal function that does
556 the work each time a ciphersuite string requests enabling
557 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
558 removing ("!foo+bar") a class of ciphersuites: Now it maintains
559 the order of disabled ciphersuites such that those ciphersuites
560 that most recently went from enabled to disabled not only stay
561 in order with respect to each other, but also have higher priority
562 than other disabled ciphersuites the next time ciphersuites are
565 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
566 the same ciphersuites as with "HIGH" alone, but in a specific
567 order where the PSK ciphersuites come first (since they are the
568 most recently disabled ciphersuites when "HIGH" is parsed).
570 Also, change ssl_create_cipher_list() (using this new
571 funcionality) such that between otherwise identical
572 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
576 *) Change ssl_create_cipher_list() so that it automatically
577 arranges the ciphersuites in reasonable order before starting
578 to process the rule string. Thus, the definition for "DEFAULT"
579 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
580 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
581 This makes it much easier to arrive at a reasonable default order
582 in applications for which anonymous ciphers are OK (meaning
583 that you can't actually use DEFAULT).
584 [Bodo Moeller; suggested by Victor Duchovni]
586 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
587 processing) into multiple integers instead of setting
588 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
589 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
590 (These masks as well as the individual bit definitions are hidden
591 away into the non-exported interface ssl/ssl_locl.h, so this
592 change to the definition of the SSL_CIPHER structure shouldn't
593 affect applications.) This give us more bits for each of these
594 categories, so there is no longer a need to coagulate AES128 and
595 AES256 into a single algorithm bit, and to coagulate Camellia128
596 and Camellia256 into a single algorithm bit, which has led to all
599 Thus, among other things, the kludge introduced in 0.9.7m and
600 0.9.8e for masking out AES256 independently of AES128 or masking
601 out Camellia256 independently of AES256 is not needed here in 0.9.9.
603 With the change, we also introduce new ciphersuite aliases that
604 so far were missing: "AES128", "AES256", "CAMELLIA128", and
608 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
609 Use the leftmost N bytes of the signature input if the input is
610 larger than the prime q (with N being the size in bytes of q).
613 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
614 it yet and it is largely untested.
617 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
620 *) Initial incomplete changes to avoid need for function casts in OpenSSL
621 some compilers (gcc 4.2 and later) reject their use. Safestack is
622 reimplemented. Update ASN1 to avoid use of legacy functions.
625 *) Win32/64 targets are linked with Winsock2.
628 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
629 to external functions. This can be used to increase CRL handling
630 efficiency especially when CRLs are very large by (for example) storing
631 the CRL revoked certificates in a database.
634 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
635 new CRLs added to a directory can be used. New command line option
636 -verify_return_error to s_client and s_server. This causes real errors
637 to be returned by the verify callback instead of carrying on no matter
638 what. This reflects the way a "real world" verify callback would behave.
641 *) GOST engine, supporting several GOST algorithms and public key formats.
642 Kindly donated by Cryptocom.
645 *) Partial support for Issuing Distribution Point CRL extension. CRLs
646 partitioned by DP are handled but no indirect CRL or reason partitioning
647 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
648 selected via a scoring technique which handles IDP and AKID in CRLs.
651 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
652 will ultimately be used for all verify operations: this will remove the
653 X509_STORE dependency on certificate verification and allow alternative
654 lookup methods. X509_STORE based implementations of these two callbacks.
657 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
658 Modify get_crl() to find a valid (unexpired) CRL if possible.
661 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
662 this would be called X509_CRL_cmp() but that name is already used by
663 a function that just compares CRL issuer names. Cache several CRL
664 extensions in X509_CRL structure and cache CRLDP in X509.
667 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
668 this maps equivalent X509_NAME structures into a consistent structure.
669 Name comparison can then be performed rapidly using memcmp().
672 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
676 *) Allow digests to supply their own micalg string for S/MIME type using
677 the ctrl EVP_MD_CTRL_MICALG.
680 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
681 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
682 ctrl. It can then customise the structure before and/or after signing
686 *) New function OBJ_add_sigid() to allow application defined signature OIDs
687 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
688 to free up any added signature OIDs.
691 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
692 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
693 digest and cipher tables. New options added to openssl utility:
694 list-message-digest-algorithms and list-cipher-algorithms.
697 *) Change the array representation of binary polynomials: the list
698 of degrees of non-zero coefficients is now terminated with -1.
699 Previously it was terminated with 0, which was also part of the
700 value; thus, the array representation was not applicable to
701 polynomials where t^0 has coefficient zero. This change makes
702 the array representation useful in a more general context.
705 *) Various modifications and fixes to SSL/TLS cipher string
706 handling. For ECC, the code now distinguishes between fixed ECDH
707 with RSA certificates on the one hand and with ECDSA certificates
708 on the other hand, since these are separate ciphersuites. The
709 unused code for Fortezza ciphersuites has been removed.
711 For consistency with EDH, ephemeral ECDH is now called "EECDH"
712 (not "ECDHE"). For consistency with the code for DH
713 certificates, use of ECDH certificates is now considered ECDH
714 authentication, not RSA or ECDSA authentication (the latter is
715 merely the CA's signing algorithm and not actively used in the
718 The temporary ciphersuite alias "ECCdraft" is no longer
719 available, and ECC ciphersuites are no longer excluded from "ALL"
720 and "DEFAULT". The following aliases now exist for RFC 4492
721 ciphersuites, most of these by analogy with the DH case:
723 kECDHr - ECDH cert, signed with RSA
724 kECDHe - ECDH cert, signed with ECDSA
725 kECDH - ECDH cert (signed with either RSA or ECDSA)
726 kEECDH - ephemeral ECDH
727 ECDH - ECDH cert or ephemeral ECDH
733 AECDH - anonymous ECDH
734 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
738 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
739 Use correct micalg parameters depending on digest(s) in signed message.
742 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
743 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
746 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
747 an engine to register a method. Add ENGINE lookups for methods and
748 functional reference processing.
751 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
752 EVP_{Sign,Verify}* which allow an application to customise the signature
756 *) New -resign option to smime utility. This adds one or more signers
757 to an existing PKCS#7 signedData structure. Also -md option to use an
758 alternative message digest algorithm for signing.
761 *) Tidy up PKCS#7 routines and add new functions to make it easier to
762 create PKCS7 structures containing multiple signers. Update smime
763 application to support multiple signers.
766 *) New -macalg option to pkcs12 utility to allow setting of an alternative
770 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
771 Reorganize PBE internals to lookup from a static table using NIDs,
772 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
773 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
774 PRF which will be automatically used with PBES2.
777 *) Replace the algorithm specific calls to generate keys in "req" with the
781 *) Update PKCS#7 enveloped data routines to use new API. This is now
782 supported by any public key method supporting the encrypt operation. A
783 ctrl is added to allow the public key algorithm to examine or modify
784 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
788 *) Add a ctrl to asn1 method to allow a public key algorithm to express
789 a default digest type to use. In most cases this will be SHA1 but some
790 algorithms (such as GOST) need to specify an alternative digest. The
791 return value indicates how strong the prefernce is 1 means optional and
792 2 is mandatory (that is it is the only supported type). Modify
793 ASN1_item_sign() to accept a NULL digest argument to indicate it should
794 use the default md. Update openssl utilities to use the default digest
795 type for signing if it is not explicitly indicated.
798 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
799 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
800 signing method from the key type. This effectively removes the link
801 between digests and public key types.
804 *) Add an OID cross reference table and utility functions. Its purpose is to
805 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
806 rsaEncryption. This will allow some of the algorithm specific hackery
807 needed to use the correct OID to be removed.
810 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
811 structures for PKCS7_sign(). They are now set up by the relevant public
815 *) Add provisional EC pkey method with support for ECDSA and ECDH.
818 *) Add support for key derivation (agreement) in the API, DH method and
822 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
823 public and private key formats. As a side effect these add additional
824 command line functionality not previously available: DSA signatures can be
825 generated and verified using pkeyutl and DH key support and generation in
830 [Oliver Tappe <zooey@hirschkaefer.de>]
832 *) New make target "install_html_docs" installs HTML renditions of the
834 [Oliver Tappe <zooey@hirschkaefer.de>]
836 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
837 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
838 support key and parameter generation and add initial key generation
839 functionality for RSA.
842 *) Add functions for main EVP_PKEY_method operations. The undocumented
843 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
844 EVP_PKEY_{encrypt,decrypt}_old.
847 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
848 key API, doesn't do much yet.
851 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
852 public key algorithms. New option to openssl utility:
853 "list-public-key-algorithms" to print out info.
856 *) Implement the Supported Elliptic Curves Extension for
857 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
860 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
861 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
864 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
865 utilities such as rsa, dsa, dsaparam etc except they process any key
869 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
870 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
871 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
875 *) Initial support for pluggable public key ASN1.
876 De-spaghettify the public key ASN1 handling. Move public and private
877 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
878 algorithm specific handling to a single module within the relevant
879 algorithm directory. Add functions to allow (near) opaque processing
880 of public and private key structures.
883 *) Implement the Supported Point Formats Extension for
884 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
887 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
888 for the psk identity [hint] and the psk callback functions to the
889 SSL_SESSION, SSL and SSL_CTX structure.
892 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
896 SSL_CTX_use_psk_identity_hint
897 SSL_get_psk_identity_hint
899 SSL_use_psk_identity_hint
901 [Mika Kousa and Pasi Eronen of Nokia Corporation]
903 *) Add RFC 3161 compliant time stamp request creation, response generation
904 and response verification functionality.
905 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
907 *) Add initial support for TLS extensions, specifically for the server_name
908 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
909 have new members for a host name. The SSL data structure has an
910 additional member SSL_CTX *initial_ctx so that new sessions can be
911 stored in that context to allow for session resumption, even after the
912 SSL has been switched to a new SSL_CTX in reaction to a client's
913 server_name extension.
915 New functions (subject to change):
918 SSL_get_servername_type()
921 New CTRL codes and macros (subject to change):
923 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
924 - SSL_CTX_set_tlsext_servername_callback()
925 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
926 - SSL_CTX_set_tlsext_servername_arg()
927 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
929 openssl s_client has a new '-servername ...' option.
931 openssl s_server has new options '-servername_host ...', '-cert2 ...',
932 '-key2 ...', '-servername_fatal' (subject to change). This allows
933 testing the HostName extension for a specific single host name ('-cert'
934 and '-key' remain fallbacks for handshakes without HostName
935 negotiation). If the unrecogninzed_name alert has to be sent, this by
936 default is a warning; it becomes fatal with the '-servername_fatal'
939 [Peter Sylvester, Remy Allais, Christophe Renou]
941 *) Whirlpool hash implementation is added.
944 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
945 bn(64,32). Because of instruction set limitations it doesn't have
946 any negative impact on performance. This was done mostly in order
947 to make it possible to share assembler modules, such as bn_mul_mont
948 implementations, between 32- and 64-bit builds without hassle.
951 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
952 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
956 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
957 dedicated Montgomery multiplication procedure, is introduced.
958 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
959 "64-bit" performance on certain 32-bit targets.
962 *) New option SSL_OP_NO_COMP to disable use of compression selectively
963 in SSL structures. New SSL ctrl to set maximum send fragment size.
964 Save memory by seeting the I/O buffer sizes dynamically instead of
965 using the maximum available value.
968 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
969 in addition to the text details.
972 *) Very, very preliminary EXPERIMENTAL support for printing of general
973 ASN1 structures. This currently produces rather ugly output and doesn't
974 handle several customised structures at all.
977 *) Integrated support for PVK file format and some related formats such
978 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
979 these in the 'rsa' and 'dsa' utilities.
982 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
985 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
986 place for the (very old) "NETSCAPE" format certificates which are now
987 handled using new ASN1 code equivalents.
990 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
991 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
992 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
995 *) Modify CRL distribution points extension code to print out previously
996 unsupported fields. Enhance extension setting code to allow setting of
1000 *) Add print and set support for Issuing Distribution Point CRL extension.
1003 *) Change 'Configure' script to enable Camellia by default.
1006 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1008 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1009 Thanks to Antonio Martin, Enterprise Secure Access Research and
1010 Development, Cisco Systems, Inc. for discovering this bug and
1011 preparing a fix. (CVE-2012-0050)
1014 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1016 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1017 of the Vaudenay padding oracle attack on CBC mode encryption
1018 which enables an efficient plaintext recovery attack against
1019 the OpenSSL implementation of DTLS. Their attack exploits timing
1020 differences arising during decryption processing. A research
1021 paper describing this attack can be found at:
1022 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1023 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1024 Security Group at Royal Holloway, University of London
1025 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1026 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1027 for preparing the fix. (CVE-2011-4108)
1028 [Robin Seggelmann, Michael Tuexen]
1030 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1031 [Ben Laurie, Kasper <ekasper@google.com>]
1033 *) Clear bytes used for block padding of SSL 3.0 records.
1035 [Adam Langley (Google)]
1037 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1038 Kadianakis <desnacked@gmail.com> for discovering this issue and
1039 Adam Langley for preparing the fix. (CVE-2011-4619)
1040 [Adam Langley (Google)]
1042 *) Prevent malformed RFC3779 data triggering an assertion failure.
1043 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1044 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1045 [Rob Austein <sra@hactrn.net>]
1047 *) Fix ssl_ciph.c set-up race.
1048 [Adam Langley (Google)]
1050 *) Fix spurious failures in ecdsatest.c.
1051 [Emilia Käsper (Google)]
1053 *) Fix the BIO_f_buffer() implementation (which was mixing different
1054 interpretations of the '..._len' fields).
1055 [Adam Langley (Google)]
1057 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1058 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1059 threads won't reuse the same blinding coefficients.
1061 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1062 lock to call BN_BLINDING_invert_ex, and avoids one use of
1063 BN_BLINDING_update for each BN_BLINDING structure (previously,
1064 the last update always remained unused).
1065 [Emilia Käsper (Google)]
1067 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1068 for multi-threaded use of ECDH.
1069 [Adam Langley (Google)]
1071 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1074 *) Add protection against ECDSA timing attacks as mentioned in the paper
1075 by Billy Bob Brumley and Nicola Tuveri, see:
1077 http://eprint.iacr.org/2011/232.pdf
1079 [Billy Bob Brumley and Nicola Tuveri]
1081 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1083 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1084 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1086 *) Fix bug in string printing code: if *any* escaping is enabled we must
1087 escape the escape character (backslash) or the resulting string is
1091 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1093 *) Disable code workaround for ancient and obsolete Netscape browsers
1094 and servers: an attacker can use it in a ciphersuite downgrade attack.
1095 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1098 *) Fixed J-PAKE implementation error, originally discovered by
1099 Sebastien Martini, further info and confirmation from Stefan
1100 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1103 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1105 *) Fix extension code to avoid race conditions which can result in a buffer
1106 overrun vulnerability: resumed sessions must not be modified as they can
1107 be shared by multiple threads. CVE-2010-3864
1110 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1113 *) Don't reencode certificate when calculating signature: cache and use
1114 the original encoding instead. This makes signature verification of
1115 some broken encodings work correctly.
1118 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1119 is also one of the inputs.
1120 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1122 *) Don't repeatedly append PBE algorithms to table if they already exist.
1123 Sort table on each new add. This effectively makes the table read only
1124 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1128 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1130 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1133 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1134 access or freeing data twice (CVE-2010-0742)
1135 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1137 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1138 common in certificates and some applications which only call
1139 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1143 Reduce copying into .apps and .test in makevms.com
1144 Don't try to use blank CA certificate in CA.com
1145 Allow use of C files from original directories in maketests.com
1146 [Steven M. Schweda" <sms@antinode.info>]
1148 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1150 *) When rejecting SSL/TLS records due to an incorrect version number, never
1151 update s->server with a new major version number. As of
1152 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1153 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1154 the previous behavior could result in a read attempt at NULL when
1155 receiving specific incorrect SSL/TLS records once record payload
1156 protection is active. (CVE-2010-0740)
1157 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1159 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1160 could be crashed if the relevant tables were not present (e.g. chrooted).
1161 [Tomas Hoger <thoger@redhat.com>]
1163 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1165 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1166 [Martin Olsson, Neel Mehta]
1168 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1169 accommodate for stack sorting, always a write lock!).
1172 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1173 excessive delays in the RAND_poll(): over a minute. As a workaround
1174 include a time check in the inner Heap32Next loop too.
1177 *) The code that handled flushing of data in SSL/TLS originally used the
1178 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1179 the problem outlined in PR#1949. The fix suggested there however can
1180 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1181 of Apache). So instead simplify the code to flush unconditionally.
1182 This should be fine since flushing with no data to flush is a no op.
1185 *) Handle TLS versions 2.0 and later properly and correctly use the
1186 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1187 off ancient servers have a habit of sticking around for a while...
1190 *) Modify compression code so it frees up structures without using the
1191 ex_data callbacks. This works around a problem where some applications
1192 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1193 restarting) then use compression (e.g. SSL with compression) later.
1194 This results in significant per-connection memory leaks and
1195 has caused some security issues including CVE-2008-1678 and
1199 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1200 change when encrypting or decrypting.
1203 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1204 connect and renegotiate with servers which do not support RI.
1205 Until RI is more widely deployed this option is enabled by default.
1208 *) Add "missing" ssl ctrls to clear options and mode.
1211 *) If client attempts to renegotiate and doesn't support RI respond with
1212 a no_renegotiation alert as required by RFC5746. Some renegotiating
1213 TLS clients will continue a connection gracefully when they receive
1214 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1215 waiting for a server hello which it will never receive. Now we treat a
1216 received no_renegotiation alert as a fatal error. This is because
1217 applications requesting a renegotiation might well expect it to succeed
1218 and would have no code in place to handle the server denying it so the
1219 only safe thing to do is to terminate the connection.
1222 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1223 peer supports secure renegotiation and 0 otherwise. Print out peer
1224 renegotiation support in s_client/s_server.
1227 *) Replace the highly broken and deprecated SPKAC certification method with
1228 the updated NID creation version. This should correctly handle UTF8.
1231 *) Implement RFC5746. Re-enable renegotiation but require the extension
1232 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1233 turns out to be a bad idea. It has been replaced by
1234 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1235 SSL_CTX_set_options(). This is really not recommended unless you
1236 know what you are doing.
1237 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1239 *) Fixes to stateless session resumption handling. Use initial_ctx when
1240 issuing and attempting to decrypt tickets in case it has changed during
1241 servername handling. Use a non-zero length session ID when attempting
1242 stateless session resumption: this makes it possible to determine if
1243 a resumption has occurred immediately after receiving server hello
1244 (several places in OpenSSL subtly assume this) instead of later in
1248 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1249 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1250 fixes for a few places where the return code is not checked
1252 [Julia Lawall <julia@diku.dk>]
1254 *) Add --strict-warnings option to Configure script to include devteam
1255 warnings in other configurations.
1258 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1259 makes it possible to install openssl libraries in locations which
1260 have names other than "lib", for example "/usr/lib64" which some
1262 [Steve Henson, based on patch from Jeremy Utley]
1264 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1265 X690 8.9.12 and can produce some misleading textual output of OIDs.
1266 [Steve Henson, reported by Dan Kaminsky]
1268 *) Delete MD2 from algorithm tables. This follows the recommendation in
1269 several standards that it is not used in new applications due to
1270 several cryptographic weaknesses. For binary compatibility reasons
1271 the MD2 API is still compiled in by default.
1274 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1278 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1279 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1281 [Guenter <lists@gknw.net>]
1283 *) Fix the server certificate chain building code to use X509_verify_cert(),
1284 it used to have an ad-hoc builder which was unable to cope with anything
1285 other than a simple chain.
1286 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1288 *) Don't check self signed certificate signatures in X509_verify_cert()
1289 by default (a flag can override this): it just wastes time without
1290 adding any security. As a useful side effect self signed root CAs
1291 with non-FIPS digests are now usable in FIPS mode.
1294 *) In dtls1_process_out_of_seq_message() the check if the current message
1295 is already buffered was missing. For every new message was memory
1296 allocated, allowing an attacker to perform an denial of service attack
1297 with sending out of seq handshake messages until there is no memory
1298 left. Additionally every future messege was buffered, even if the
1299 sequence number made no sense and would be part of another handshake.
1300 So only messages with sequence numbers less than 10 in advance will be
1301 buffered. (CVE-2009-1378)
1302 [Robin Seggelmann, discovered by Daniel Mentz]
1304 *) Records are buffered if they arrive with a future epoch to be
1305 processed after finishing the corresponding handshake. There is
1306 currently no limitation to this buffer allowing an attacker to perform
1307 a DOS attack with sending records with future epochs until there is no
1308 memory left. This patch adds the pqueue_size() function to detemine
1309 the size of a buffer and limits the record buffer to 100 entries.
1311 [Robin Seggelmann, discovered by Daniel Mentz]
1313 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1314 parent structure is freed. (CVE-2009-1379)
1317 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1318 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1321 [Ilya O. <vrghost@gmail.com>]
1323 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1325 *) Disable renegotiation completely - this fixes a severe security
1326 problem (CVE-2009-3555) at the cost of breaking all
1327 renegotiation. Renegotiation can be re-enabled by setting
1328 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1329 run-time. This is really not recommended unless you know what
1333 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1335 *) Don't set val to NULL when freeing up structures, it is freed up by
1336 underlying code. If sizeof(void *) > sizeof(long) this can result in
1337 zeroing past the valid field. (CVE-2009-0789)
1338 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1340 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1341 checked correctly. This would allow some invalid signed attributes to
1342 appear to verify correctly. (CVE-2009-0591)
1343 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1345 *) Reject UniversalString and BMPString types with invalid lengths. This
1346 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1347 a legal length. (CVE-2009-0590)
1350 *) Set S/MIME signing as the default purpose rather than setting it
1351 unconditionally. This allows applications to override it at the store
1355 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1356 to handle some structures.
1359 *) Improve efficiency of mem_gets: don't search whole buffer each time
1361 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1363 *) New -hex option for openssl rand.
1366 *) Print out UTF8String and NumericString when parsing ASN1.
1369 *) Support NumericString type for name components.
1372 *) Allow CC in the environment to override the automatically chosen
1373 compiler. Note that nothing is done to ensure flags work with the
1377 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1379 *) Properly check EVP_VerifyFinal() and similar return values
1381 [Ben Laurie, Bodo Moeller, Google Security Team]
1383 *) Enable TLS extensions by default.
1386 *) Allow the CHIL engine to be loaded, whether the application is
1387 multithreaded or not. (This does not release the developer from the
1388 obligation to set up the dynamic locking callbacks.)
1389 [Sander Temme <sander@temme.net>]
1391 *) Use correct exit code if there is an error in dgst command.
1392 [Steve Henson; problem pointed out by Roland Dirlewanger]
1394 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1395 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1398 *) Add experimental JPAKE support, including demo authentication in
1399 s_client and s_server.
1402 *) Set the comparison function in v3_addr_canonize().
1403 [Rob Austein <sra@hactrn.net>]
1405 *) Add support for XMPP STARTTLS in s_client.
1406 [Philip Paeps <philip@freebsd.org>]
1408 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1409 to ensure that even with this option, only ciphersuites in the
1410 server's preference list will be accepted. (Note that the option
1411 applies only when resuming a session, so the earlier behavior was
1412 just about the algorithm choice for symmetric cryptography.)
1415 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1417 *) Fix NULL pointer dereference if a DTLS server received
1418 ChangeCipherSpec as first record (CVE-2009-1386).
1421 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1422 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1425 *) The fix in 0.9.8c that supposedly got rid of unsafe
1426 double-checked locking was incomplete for RSA blinding,
1427 addressing just one layer of what turns out to have been
1428 doubly unsafe triple-checked locking.
1430 So now fix this for real by retiring the MONT_HELPER macro
1431 in crypto/rsa/rsa_eay.c.
1433 [Bodo Moeller; problem pointed out by Marius Schilder]
1435 *) Various precautionary measures:
1437 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1439 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1440 (NB: This would require knowledge of the secret session ticket key
1441 to exploit, in which case you'd be SOL either way.)
1443 - Change bn_nist.c so that it will properly handle input BIGNUMs
1444 outside the expected range.
1446 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1449 [Neel Mehta, Bodo Moeller]
1451 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1452 the load fails. Useful for distros.
1453 [Ben Laurie and the FreeBSD team]
1455 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1458 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1461 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1463 This work was sponsored by Logica.
1466 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1467 keystores. Support for SSL/TLS client authentication too.
1468 Not compiled unless enable-capieng specified to Configure.
1470 This work was sponsored by Logica.
1473 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1474 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1475 attribute creation routines such as certifcate requests and PKCS#12
1479 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1481 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1482 handshake which could lead to a cilent crash as found using the
1483 Codenomicon TLS test suite (CVE-2008-1672)
1484 [Steve Henson, Mark Cox]
1486 *) Fix double free in TLS server name extensions which could lead to
1487 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1490 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1492 Clear the error queue to ensure that error entries left from
1493 older function calls do not interfere with the correct operation.
1494 [Lutz Jaenicke, Erik de Castro Lopo]
1496 *) Remove root CA certificates of commercial CAs:
1498 The OpenSSL project does not recommend any specific CA and does not
1499 have any policy with respect to including or excluding any CA.
1500 Therefore it does not make any sense to ship an arbitrary selection
1501 of root CA certificates with the OpenSSL software.
1504 *) RSA OAEP patches to fix two separate invalid memory reads.
1505 The first one involves inputs when 'lzero' is greater than
1506 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1507 before the beginning of from). The second one involves inputs where
1508 the 'db' section contains nothing but zeroes (there is a one-byte
1509 invalid read after the end of 'db').
1510 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1512 *) Partial backport from 0.9.9-dev:
1514 Introduce bn_mul_mont (dedicated Montgomery multiplication
1515 procedure) as a candidate for BIGNUM assembler implementation.
1516 While 0.9.9-dev uses assembler for various architectures, only
1517 x86_64 is available by default here in the 0.9.8 branch, and
1518 32-bit x86 is available through a compile-time setting.
1520 To try the 32-bit x86 assembler implementation, use Configure
1521 option "enable-montasm" (which exists only for this backport).
1523 As "enable-montasm" for 32-bit x86 disclaims code stability
1524 anyway, in this constellation we activate additional code
1525 backported from 0.9.9-dev for further performance improvements,
1526 namely BN_from_montgomery_word. (To enable this otherwise,
1527 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1529 [Andy Polyakov (backport partially by Bodo Moeller)]
1531 *) Add TLS session ticket callback. This allows an application to set
1532 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1533 values. This is useful for key rollover for example where several key
1534 sets may exist with different names.
1537 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1538 This was broken until now in 0.9.8 releases, such that the only way
1539 a registered ENGINE could be used (assuming it initialises
1540 successfully on the host) was to explicitly set it as the default
1541 for the relevant algorithms. This is in contradiction with 0.9.7
1542 behaviour and the documentation. With this fix, when an ENGINE is
1543 registered into a given algorithm's table of implementations, the
1544 'uptodate' flag is reset so that auto-discovery will be used next
1545 time a new context for that algorithm attempts to select an
1547 [Ian Lister (tweaked by Geoff Thorpe)]
1549 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1550 implemention in the following ways:
1552 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1555 Lack of BER streaming support means one pass streaming processing is
1556 only supported if data is detached: setting the streaming flag is
1557 ignored for embedded content.
1559 CMS support is disabled by default and must be explicitly enabled
1560 with the enable-cms configuration option.
1563 *) Update the GMP engine glue to do direct copies between BIGNUM and
1564 mpz_t when openssl and GMP use the same limb size. Otherwise the
1565 existing "conversion via a text string export" trick is still used.
1566 [Paul Sheer <paulsheer@gmail.com>]
1568 *) Zlib compression BIO. This is a filter BIO which compressed and
1569 uncompresses any data passed through it.
1572 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1573 RFC3394 compatible AES key wrapping.
1576 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1577 sets string data without copying. X509_ALGOR_set0() and
1578 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1579 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1580 from an X509_ATTRIBUTE structure optionally checking it occurs only
1581 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1585 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1586 to get the expected BN_FLG_CONSTTIME behavior.
1587 [Bodo Moeller (Google)]
1591 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1592 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1593 - added some more tests to do_tests.pl
1594 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1595 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1596 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1597 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1598 - various changes to netware.pl to enable gcc-cross builds on Win32
1600 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1601 - various changes to fix missing prototype warnings
1602 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1603 - added AES, WHIRLPOOL and CPUID assembler code to build files
1604 - added missing AES assembler make rules to mk1mf.pl
1605 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1606 [Guenter Knauf <eflash@gmx.net>]
1608 *) Implement certificate status request TLS extension defined in RFC3546.
1609 A client can set the appropriate parameters and receive the encoded
1610 OCSP response via a callback. A server can query the supplied parameters
1611 and set the encoded OCSP response in the callback. Add simplified examples
1612 to s_client and s_server.
1615 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1617 *) Fix various bugs:
1618 + Binary incompatibility of ssl_ctx_st structure
1619 + DTLS interoperation with non-compliant servers
1620 + Don't call get_session_cb() without proposed session
1621 + Fix ia64 assembler code
1622 [Andy Polyakov, Steve Henson]
1624 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1626 *) DTLS Handshake overhaul. There were longstanding issues with
1627 OpenSSL DTLS implementation, which were making it impossible for
1628 RFC 4347 compliant client to communicate with OpenSSL server.
1629 Unfortunately just fixing these incompatibilities would "cut off"
1630 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1631 server keeps tolerating non RFC compliant syntax. The opposite is
1632 not true, 0.9.8f client can not communicate with earlier server.
1633 This update even addresses CVE-2007-4995.
1636 *) Changes to avoid need for function casts in OpenSSL: some compilers
1637 (gcc 4.2 and later) reject their use.
1638 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1641 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1642 RFC4507bis. The encrypted ticket format is an encrypted encoded
1643 SSL_SESSION structure, that way new session features are automatically
1646 If a client application caches session in an SSL_SESSION structure
1647 support is transparent because tickets are now stored in the encoded
1650 The SSL_CTX structure automatically generates keys for ticket
1651 protection in servers so again support should be possible
1652 with no application modification.
1654 If a client or server wishes to disable RFC4507 support then the option
1655 SSL_OP_NO_TICKET can be set.
1657 Add a TLS extension debugging callback to allow the contents of any client
1658 or server extensions to be examined.
1660 This work was sponsored by Google.
1663 *) Add initial support for TLS extensions, specifically for the server_name
1664 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1665 have new members for a host name. The SSL data structure has an
1666 additional member SSL_CTX *initial_ctx so that new sessions can be
1667 stored in that context to allow for session resumption, even after the
1668 SSL has been switched to a new SSL_CTX in reaction to a client's
1669 server_name extension.
1671 New functions (subject to change):
1673 SSL_get_servername()
1674 SSL_get_servername_type()
1677 New CTRL codes and macros (subject to change):
1679 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1680 - SSL_CTX_set_tlsext_servername_callback()
1681 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1682 - SSL_CTX_set_tlsext_servername_arg()
1683 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1685 openssl s_client has a new '-servername ...' option.
1687 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1688 '-key2 ...', '-servername_fatal' (subject to change). This allows
1689 testing the HostName extension for a specific single host name ('-cert'
1690 and '-key' remain fallbacks for handshakes without HostName
1691 negotiation). If the unrecogninzed_name alert has to be sent, this by
1692 default is a warning; it becomes fatal with the '-servername_fatal'
1695 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1697 *) Add AES and SSE2 assembly language support to VC++ build.
1700 *) Mitigate attack on final subtraction in Montgomery reduction.
1703 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1704 (which previously caused an internal error).
1707 *) Squeeze another 10% out of IGE mode when in != out.
1710 *) AES IGE mode speedup.
1711 [Dean Gaudet (Google)]
1713 *) Add the Korean symmetric 128-bit cipher SEED (see
1714 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1715 add SEED ciphersuites from RFC 4162:
1717 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1718 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1719 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1720 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1722 To minimize changes between patchlevels in the OpenSSL 0.9.8
1723 series, SEED remains excluded from compilation unless OpenSSL
1724 is configured with 'enable-seed'.
1725 [KISA, Bodo Moeller]
1727 *) Mitigate branch prediction attacks, which can be practical if a
1728 single processor is shared, allowing a spy process to extract
1729 information. For detailed background information, see
1730 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1731 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1732 and Necessary Software Countermeasures"). The core of the change
1733 are new versions BN_div_no_branch() and
1734 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1735 respectively, which are slower, but avoid the security-relevant
1736 conditional branches. These are automatically called by BN_div()
1737 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1738 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1739 remove a conditional branch.
1741 BN_FLG_CONSTTIME is the new name for the previous
1742 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1743 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1744 in the exponent causes BN_mod_exp_mont() to use the alternative
1745 implementation in BN_mod_exp_mont_consttime().) The old name
1746 remains as a deprecated alias.
1748 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1749 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1750 constant-time implementations for more than just exponentiation.
1751 Here too the old name is kept as a deprecated alias.
1753 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1754 the BN_BLINDING structure gets an independent copy of the
1755 modulus. This means that the previous "BIGNUM *m" argument to
1756 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1757 essentially becomes "const BIGNUM *m", although we can't actually
1758 change this in the header file before 0.9.9. It allows
1759 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1760 enable BN_FLG_CONSTTIME.
1762 [Matthew D Wood (Intel Corp)]
1764 *) In the SSL/TLS server implementation, be strict about session ID
1765 context matching (which matters if an application uses a single
1766 external cache for different purposes). Previously,
1767 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1768 set. This did ensure strict client verification, but meant that,
1769 with applications using a single external cache for quite
1770 different requirements, clients could circumvent ciphersuite
1771 restrictions for a given session ID context by starting a session
1772 in a different context.
1775 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1776 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1777 authentication-only ciphersuites.
1780 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1781 not complete and could lead to a possible single byte overflow
1782 (CVE-2007-5135) [Ben Laurie]
1784 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1786 *) Since AES128 and AES256 (and similarly Camellia128 and
1787 Camellia256) share a single mask bit in the logic of
1788 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1789 kludge to work properly if AES128 is available and AES256 isn't
1790 (or if Camellia128 is available and Camellia256 isn't).
1793 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1794 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1795 When a point or a seed is encoded in a BIT STRING, we need to
1796 prevent the removal of trailing zero bits to get the proper DER
1797 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1798 of a NamedBitList, for which trailing 0 bits need to be removed.)
1801 *) Have SSL/TLS server implementation tolerate "mismatched" record
1802 protocol version while receiving ClientHello even if the
1803 ClientHello is fragmented. (The server can't insist on the
1804 particular protocol version it has chosen before the ServerHello
1805 message has informed the client about his choice.)
1808 *) Add RFC 3779 support.
1809 [Rob Austein for ARIN, Ben Laurie]
1811 *) Load error codes if they are not already present instead of using a
1812 static variable. This allows them to be cleanly unloaded and reloaded.
1813 Improve header file function name parsing.
1816 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1817 or CAPABILITY handshake as required by RFCs.
1820 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1822 *) Introduce limits to prevent malicious keys being able to
1823 cause a denial of service. (CVE-2006-2940)
1824 [Steve Henson, Bodo Moeller]
1826 *) Fix ASN.1 parsing of certain invalid structures that can result
1827 in a denial of service. (CVE-2006-2937) [Steve Henson]
1829 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1830 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1832 *) Fix SSL client code which could crash if connecting to a
1833 malicious SSLv2 server. (CVE-2006-4343)
1834 [Tavis Ormandy and Will Drewry, Google Security Team]
1836 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1837 match only those. Before that, "AES256-SHA" would be interpreted
1838 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1839 the same strength classification in 0.9.7h) as we currently only
1840 have a single AES bit in the ciphersuite description bitmap.
1841 That change, however, also applied to ciphersuite strings such as
1842 "RC4-MD5" that intentionally matched multiple ciphersuites --
1843 namely, SSL 2.0 ciphersuites in addition to the more common ones
1844 from SSL 3.0/TLS 1.0.
1846 So we change the selection algorithm again: Naming an explicit
1847 ciphersuite selects this one ciphersuite, and any other similar
1848 ciphersuite (same bitmap) from *other* protocol versions.
1849 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1850 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1852 Since SSL 2.0 does not have any ciphersuites for which the
1853 128/256 bit distinction would be relevant, this works for now.
1854 The proper fix will be to use different bits for AES128 and
1855 AES256, which would have avoided the problems from the beginning;
1856 however, bits are scarce, so we can only do this in a new release
1857 (not just a patchlevel) when we can change the SSL_CIPHER
1858 definition to split the single 'unsigned long mask' bitmap into
1859 multiple values to extend the available space.
1863 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1865 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1866 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1868 *) Add AES IGE and biIGE modes.
1871 *) Change the Unix randomness entropy gathering to use poll() when
1872 possible instead of select(), since the latter has some
1873 undesirable limitations.
1874 [Darryl Miles via Richard Levitte and Bodo Moeller]
1876 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1877 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1878 cannot be implicitly activated as part of, e.g., the "AES" alias.
1879 However, please upgrade to OpenSSL 0.9.9[-dev] for
1880 non-experimental use of the ECC ciphersuites to get TLS extension
1881 support, which is required for curve and point format negotiation
1882 to avoid potential handshake problems.
1885 *) Disable rogue ciphersuites:
1887 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1888 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1889 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1891 The latter two were purportedly from
1892 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1895 Also deactivate the remaining ciphersuites from
1896 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1897 unofficial, and the ID has long expired.
1900 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1901 dual-core machines) and other potential thread-safety issues.
1904 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1905 versions), which is now available for royalty-free use
1906 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1907 Also, add Camellia TLS ciphersuites from RFC 4132.
1909 To minimize changes between patchlevels in the OpenSSL 0.9.8
1910 series, Camellia remains excluded from compilation unless OpenSSL
1911 is configured with 'enable-camellia'.
1914 *) Disable the padding bug check when compression is in use. The padding
1915 bug check assumes the first packet is of even length, this is not
1916 necessarily true if compresssion is enabled and can result in false
1917 positives causing handshake failure. The actual bug test is ancient
1918 code so it is hoped that implementations will either have fixed it by
1919 now or any which still have the bug do not support compression.
1922 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1924 *) When applying a cipher rule check to see if string match is an explicit
1925 cipher suite and only match that one cipher suite if it is.
1928 *) Link in manifests for VC++ if needed.
1929 [Austin Ziegler <halostatue@gmail.com>]
1931 *) Update support for ECC-based TLS ciphersuites according to
1932 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1933 TLS extensions, which are supported starting with the 0.9.9
1934 branch, not in the OpenSSL 0.9.8 branch).
1937 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1938 opaque EVP_CIPHER_CTX handling.
1941 *) Fixes and enhancements to zlib compression code. We now only use
1942 "zlib1.dll" and use the default __cdecl calling convention on Win32
1943 to conform with the standards mentioned here:
1944 http://www.zlib.net/DLL_FAQ.txt
1945 Static zlib linking now works on Windows and the new --with-zlib-include
1946 --with-zlib-lib options to Configure can be used to supply the location
1947 of the headers and library. Gracefully handle case where zlib library
1951 *) Several fixes and enhancements to the OID generation code. The old code
1952 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1953 handle numbers larger than ULONG_MAX, truncated printing and had a
1954 non standard OBJ_obj2txt() behaviour.
1957 *) Add support for building of engines under engine/ as shared libraries
1958 under VC++ build system.
1961 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1962 Hopefully, we will not see any false combination of paths any more.
1965 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1967 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1968 (part of SSL_OP_ALL). This option used to disable the
1969 countermeasure against man-in-the-middle protocol-version
1970 rollback in the SSL 2.0 server implementation, which is a bad
1971 idea. (CVE-2005-2969)
1973 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1974 for Information Security, National Institute of Advanced Industrial
1975 Science and Technology [AIST], Japan)]
1977 *) Add two function to clear and return the verify parameter flags.
1980 *) Keep cipherlists sorted in the source instead of sorting them at
1981 runtime, thus removing the need for a lock.
1984 *) Avoid some small subgroup attacks in Diffie-Hellman.
1985 [Nick Mathewson and Ben Laurie]
1987 *) Add functions for well-known primes.
1990 *) Extended Windows CE support.
1991 [Satoshi Nakamura and Andy Polyakov]
1993 *) Initialize SSL_METHOD structures at compile time instead of during
1994 runtime, thus removing the need for a lock.
1997 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1998 attempting to decrypt each encrypted key in turn. Add support to
2002 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2004 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2007 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2010 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2011 key into the same file any more.
2014 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2017 *) Add -utf8 command line and config file option to 'ca'.
2018 [Stefan <stf@udoma.org]
2020 *) Removed the macro des_crypt(), as it seems to conflict with some
2021 libraries. Use DES_crypt().
2024 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2025 involves renaming the source and generated shared-libs for
2026 both. The engines will accept the corrected or legacy ids
2027 ('ncipher' and '4758_cca' respectively) when binding. NB,
2028 this only applies when building 'shared'.
2029 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2031 *) Add attribute functions to EVP_PKEY structure. Modify
2032 PKCS12_create() to recognize a CSP name attribute and
2033 use it. Make -CSP option work again in pkcs12 utility.
2036 *) Add new functionality to the bn blinding code:
2037 - automatic re-creation of the BN_BLINDING parameters after
2038 a fixed number of uses (currently 32)
2039 - add new function for parameter creation
2040 - introduce flags to control the update behaviour of the
2041 BN_BLINDING parameters
2042 - hide BN_BLINDING structure
2043 Add a second BN_BLINDING slot to the RSA structure to improve
2044 performance when a single RSA object is shared among several
2048 *) Add support for DTLS.
2049 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2051 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2052 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2055 *) Remove buggy and incompletet DH cert support from
2056 ssl/ssl_rsa.c and ssl/s3_both.c
2059 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2060 the apps/openssl applications.
2063 *) Compile clean with "-Wall -Wmissing-prototypes
2064 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2065 DEBUG_SAFESTACK must also be set.
2068 *) Change ./Configure so that certain algorithms can be disabled by default.
2069 The new counterpiece to "no-xxx" is "enable-xxx".
2071 The patented RC5 and MDC2 algorithms will now be disabled unless
2072 "enable-rc5" and "enable-mdc2", respectively, are specified.
2074 (IDEA remains enabled despite being patented. This is because IDEA
2075 is frequently required for interoperability, and there is no license
2076 fee for non-commercial use. As before, "no-idea" can be used to
2077 avoid this algorithm.)
2081 *) Add processing of proxy certificates (see RFC 3820). This work was
2082 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2083 EGEE (Enabling Grids for E-science in Europe).
2086 *) RC4 performance overhaul on modern architectures/implementations, such
2087 as Intel P4, IA-64 and AMD64.
2090 *) New utility extract-section.pl. This can be used specify an alternative
2091 section number in a pod file instead of having to treat each file as
2092 a separate case in Makefile. This can be done by adding two lines to the
2095 =for comment openssl_section:XXX
2097 The blank line is mandatory.
2101 *) New arguments -certform, -keyform and -pass for s_client and s_server
2102 to allow alternative format key and certificate files and passphrase
2106 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2107 update associated structures and add various utility functions.
2109 Add new policy related verify parameters, include policy checking in
2110 standard verify code. Enhance 'smime' application with extra parameters
2111 to support policy checking and print out.
2114 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2115 Nehemiah processors. These extensions support AES encryption in hardware
2116 as well as RNG (though RNG support is currently disabled).
2117 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2119 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2122 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2123 [Andy Polyakov and a number of other people]
2125 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2126 implementation contributed by IBM.
2127 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2129 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2130 exponent rather than 'unsigned long'. There is a corresponding change to
2131 the new 'rsa_keygen' element of the RSA_METHOD structure.
2132 [Jelte Jansen, Geoff Thorpe]
2134 *) Functionality for creating the initial serial number file is now
2135 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2137 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2138 number file to 1, which is bound to cause problems. To avoid
2139 the problems while respecting compatibility between different 0.9.7
2140 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2141 CA.pl for serial number initialization. With the new release 0.9.8,
2142 we can fix the problem directly in the 'ca' utility.)
2145 *) Reduced header interdepencies by declaring more opaque objects in
2146 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2147 give fewer recursive includes, which could break lazy source code - so
2148 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2149 developers should define this symbol when building and using openssl to
2150 ensure they track the recommended behaviour, interfaces, [etc], but
2151 backwards-compatible behaviour prevails when this isn't defined.
2154 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2157 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2158 This will generate a random key of the appropriate length based on the
2159 cipher context. The EVP_CIPHER can provide its own random key generation
2160 routine to support keys of a specific form. This is used in the des and
2161 3des routines to generate a key of the correct parity. Update S/MIME
2162 code to use new functions and hence generate correct parity DES keys.
2163 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2164 valid (weak or incorrect parity).
2167 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2168 as looking them up. This is useful when the verified structure may contain
2169 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2170 present unless the new PKCS7_NO_CRL flag is asserted.
2173 *) Extend ASN1 oid configuration module. It now additionally accepts the
2176 shortName = some long name, 1.2.3.4
2179 *) Reimplemented the BN_CTX implementation. There is now no more static
2180 limitation on the number of variables it can handle nor the depth of the
2181 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2182 information can now expand as required, and rather than having a single
2183 static array of bignums, BN_CTX now uses a linked-list of such arrays
2184 allowing it to expand on demand whilst maintaining the usefulness of
2185 BN_CTX's "bundling".
2188 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2189 to allow all RSA operations to function using a single BN_CTX.
2192 *) Preliminary support for certificate policy evaluation and checking. This
2193 is initially intended to pass the tests outlined in "Conformance Testing
2194 of Relying Party Client Certificate Path Processing Logic" v1.07.
2197 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2198 remained unused and not that useful. A variety of other little bignum
2199 tweaks and fixes have also been made continuing on from the audit (see
2203 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2204 associated ASN1, EVP and SSL functions and old ASN1 macros.
2207 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2208 and this should never fail. So the return value from the use of
2209 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2210 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2213 *) BN_CTX_get() should return zero-valued bignums, providing the same
2214 initialised value as BN_new().
2215 [Geoff Thorpe, suggested by Ulf Möller]
2217 *) Support for inhibitAnyPolicy certificate extension.
2220 *) An audit of the BIGNUM code is underway, for which debugging code is
2221 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2222 is considered valid when processing BIGNUMs, and causes execution to
2223 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2224 further steps are taken to deliberately pollute unused data in BIGNUM
2225 structures to try and expose faulty code further on. For now, openssl will
2226 (in its default mode of operation) continue to tolerate the inconsistent
2227 forms that it has tolerated in the past, but authors and packagers should
2228 consider trying openssl and their own applications when compiled with
2229 these debugging symbols defined. It will help highlight potential bugs in
2230 their own code, and will improve the test coverage for OpenSSL itself. At
2231 some point, these tighter rules will become openssl's default to improve
2232 maintainability, though the assert()s and other overheads will remain only
2233 in debugging configurations. See bn.h for more details.
2234 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2236 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2237 that can only be obtained through BN_CTX_new() (which implicitly
2238 initialises it). The presence of this function only made it possible
2239 to overwrite an existing structure (and cause memory leaks).
2242 *) Because of the callback-based approach for implementing LHASH as a
2243 template type, lh_insert() adds opaque objects to hash-tables and
2244 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2245 to clean up those corresponding objects before destroying the hash table
2246 (and losing the object pointers). So some over-zealous constifications in
2247 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2248 objects as "const" and the lh_doall[_arg] callback wrappers are not
2249 prototyped to have "const" restrictions on the object pointers they are
2250 given (and so aren't required to cast them away any more).
2253 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2254 (speed) prefers to use its own implementation. The two implementations
2255 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2256 its object type properly exposed (MS_TM) instead of casting to/from "char
2257 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2258 aren't necessarily the greatest nomenclatures - but this is what was used
2259 internally to the implementation so I've used that for now.
2262 *) Ensure that deprecated functions do not get compiled when
2263 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2264 the self-tests were still using deprecated key-generation functions so
2265 these have been updated also.
2268 *) Reorganise PKCS#7 code to separate the digest location functionality
2269 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2270 New function PKCS7_set_digest() to set the digest type for PKCS#7
2271 digestedData type. Add additional code to correctly generate the
2272 digestedData type and add support for this type in PKCS7 initialization
2276 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2277 structure of type "other".
2280 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2281 sure the loop does correctly stop and breaking ("division by zero")
2282 modulus operations are not performed. The (pre-generated) prime
2283 table crypto/bn/bn_prime.h was already correct, but it could not be
2284 re-generated on some platforms because of the "division by zero"
2285 situation in the script.
2286 [Ralf S. Engelschall]
2288 *) Update support for ECC-based TLS ciphersuites according to
2289 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2290 SHA-1 now is only used for "small" curves (where the
2291 representation of a field element takes up to 24 bytes); for
2292 larger curves, the field element resulting from ECDH is directly
2293 used as premaster secret.
2294 [Douglas Stebila (Sun Microsystems Laboratories)]
2296 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2297 curve secp160r1 to the tests.
2298 [Douglas Stebila (Sun Microsystems Laboratories)]
2300 *) Add the possibility to load symbols globally with DSO.
2301 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2303 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2304 control of the error stack.
2307 *) Add support for STORE in ENGINE.
2310 *) Add the STORE type. The intention is to provide a common interface
2311 to certificate and key stores, be they simple file-based stores, or
2312 HSM-type store, or LDAP stores, or...
2313 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2316 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2317 pass a list of arguments to any function as well as provide a way
2318 for a function to pass data back to the caller.
2321 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2322 works like BUF_strdup() but can be used to duplicate a portion of
2323 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2327 *) Add the function sk_find_ex() which works like sk_find(), but will
2328 return an index to an element even if an exact match couldn't be
2329 found. The index is guaranteed to point at the element where the
2330 searched-for key would be inserted to preserve sorting order.
2333 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2334 takes an extra flags argument for optional functionality. Currently,
2335 the following flags are defined:
2337 OBJ_BSEARCH_VALUE_ON_NOMATCH
2338 This one gets OBJ_bsearch_ex() to return a pointer to the first
2339 element where the comparing function returns a negative or zero
2342 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2343 This one gets OBJ_bsearch_ex() to return a pointer to the first
2344 element where the comparing function returns zero. This is useful
2345 if there are more than one element where the comparing function
2349 *) Make it possible to create self-signed certificates with 'openssl ca'
2350 in such a way that the self-signed certificate becomes part of the
2351 CA database and uses the same mechanisms for serial number generation
2352 as all other certificate signing. The new flag '-selfsign' enables
2353 this functionality. Adapt CA.sh and CA.pl.in.
2356 *) Add functionality to check the public key of a certificate request
2357 against a given private. This is useful to check that a certificate
2358 request can be signed by that key (self-signing).
2361 *) Make it possible to have multiple active certificates with the same
2362 subject in the CA index file. This is done only if the keyword
2363 'unique_subject' is set to 'no' in the main CA section (default
2364 if 'CA_default') of the configuration file. The value is saved
2365 with the database itself in a separate index attribute file,
2366 named like the index file with '.attr' appended to the name.
2369 *) Generate muti valued AVAs using '+' notation in config files for
2373 *) Support for nameConstraints certificate extension.
2376 *) Support for policyConstraints certificate extension.
2379 *) Support for policyMappings certificate extension.
2382 *) Make sure the default DSA_METHOD implementation only uses its
2383 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2384 and change its own handlers to be NULL so as to remove unnecessary
2385 indirection. This lets alternative implementations fallback to the
2386 default implementation more easily.
2389 *) Support for directoryName in GeneralName related extensions
2393 *) Make it possible to link applications using Makefile.shared.
2394 Make that possible even when linking against static libraries!
2397 *) Support for single pass processing for S/MIME signing. This now
2398 means that S/MIME signing can be done from a pipe, in addition
2399 cleartext signing (multipart/signed type) is effectively streaming
2400 and the signed data does not need to be all held in memory.
2402 This is done with a new flag PKCS7_STREAM. When this flag is set
2403 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2404 is done after the data is output (and digests calculated) in
2405 SMIME_write_PKCS7().
2408 *) Add full support for -rpath/-R, both in shared libraries and
2409 applications, at least on the platforms where it's known how
2413 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2414 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2415 will now compute a table of multiples of the generator that
2416 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2417 faster (notably in the case of a single point multiplication,
2418 scalar * generator).
2419 [Nils Larsch, Bodo Moeller]
2421 *) IPv6 support for certificate extensions. The various extensions
2422 which use the IP:a.b.c.d can now take IPv6 addresses using the
2423 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2427 *) Added an ENGINE that implements RSA by performing private key
2428 exponentiations with the GMP library. The conversions to and from
2429 GMP's mpz_t format aren't optimised nor are any montgomery forms
2430 cached, and on x86 it appears OpenSSL's own performance has caught up.
2431 However there are likely to be other architectures where GMP could
2432 provide a boost. This ENGINE is not built in by default, but it can be
2433 specified at Configure time and should be accompanied by the necessary
2434 linker additions, eg;
2435 ./config -DOPENSSL_USE_GMP -lgmp
2438 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2439 testing availability of engines with "-t" - the old behaviour is
2440 produced by increasing the feature's verbosity with "-tt".
2443 *) ECDSA routines: under certain error conditions uninitialized BN objects
2444 could be freed. Solution: make sure initialization is performed early
2445 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2449 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2450 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2451 software implementations. For DSA and DH, parameter generation can
2452 also be overriden by providing the appropriate method callbacks.
2455 *) Change the "progress" mechanism used in key-generation and
2456 primality testing to functions that take a new BN_GENCB pointer in
2457 place of callback/argument pairs. The new API functions have "_ex"
2458 postfixes and the older functions are reimplemented as wrappers for
2459 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2460 declarations of the old functions to help (graceful) attempts to
2461 migrate to the new functions. Also, the new key-generation API
2462 functions operate on a caller-supplied key-structure and return
2463 success/failure rather than returning a key or NULL - this is to
2464 help make "keygen" another member function of RSA_METHOD etc.
2466 Example for using the new callback interface:
2468 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2472 BN_GENCB_set(&my_cb, my_callback, my_arg);
2474 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2475 /* For the meaning of a, b in calls to my_callback(), see the
2476 * documentation of the function that calls the callback.
2477 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2478 * my_callback should return 1 if it wants BN_is_prime_ex()
2479 * to continue, or 0 to stop.
2484 *) Change the ZLIB compression method to be stateful, and make it
2485 available to TLS with the number defined in
2486 draft-ietf-tls-compression-04.txt.
2489 *) Add the ASN.1 structures and functions for CertificatePair, which
2490 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2492 CertificatePair ::= SEQUENCE {
2493 forward [0] Certificate OPTIONAL,
2494 reverse [1] Certificate OPTIONAL,
2495 -- at least one of the pair shall be present -- }
2497 Also implement the PEM functions to read and write certificate
2498 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2500 This needed to be defined, mostly for the sake of the LDAP
2501 attribute crossCertificatePair, but may prove useful elsewhere as
2505 *) Make it possible to inhibit symlinking of shared libraries in
2506 Makefile.shared, for Cygwin's sake.
2509 *) Extend the BIGNUM API by creating a function
2510 void BN_set_negative(BIGNUM *a, int neg);
2511 and a macro that behave like
2512 int BN_is_negative(const BIGNUM *a);
2514 to avoid the need to access 'a->neg' directly in applications.
2517 *) Implement fast modular reduction for pseudo-Mersenne primes
2518 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2519 EC_GROUP_new_curve_GFp() will now automatically use this
2521 [Nils Larsch <nla@trustcenter.de>]
2523 *) Add new lock type (CRYPTO_LOCK_BN).
2526 *) Change the ENGINE framework to automatically load engines
2527 dynamically from specific directories unless they could be
2528 found to already be built in or loaded. Move all the
2529 current engines except for the cryptodev one to a new
2531 The engines in engines/ are built as shared libraries if
2532 the "shared" options was given to ./Configure or ./config.
2533 Otherwise, they are inserted in libcrypto.a.
2534 /usr/local/ssl/engines is the default directory for dynamic
2535 engines, but that can be overriden at configure time through
2536 the usual use of --prefix and/or --openssldir, and at run
2537 time with the environment variable OPENSSL_ENGINES.
2538 [Geoff Thorpe and Richard Levitte]
2540 *) Add Makefile.shared, a helper makefile to build shared
2541 libraries. Addapt Makefile.org.
2544 *) Add version info to Win32 DLLs.
2545 [Peter 'Luna' Runestig" <peter@runestig.com>]
2547 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2548 can be added using this API to created arbitrary PKCS#12
2549 files while avoiding the low level API.
2551 New options to PKCS12_create(), key or cert can be NULL and
2552 will then be omitted from the output file. The encryption
2553 algorithm NIDs can be set to -1 for no encryption, the mac
2554 iteration count can be set to 0 to omit the mac.
2556 Enhance pkcs12 utility by making the -nokeys and -nocerts
2557 options work when creating a PKCS#12 file. New option -nomac
2558 to omit the mac, NONE can be set for an encryption algorithm.
2559 New code is modified to use the enhanced PKCS12_create()
2560 instead of the low level API.
2563 *) Extend ASN1 encoder to support indefinite length constructed
2564 encoding. This can output sequences tags and octet strings in
2565 this form. Modify pk7_asn1.c to support indefinite length
2566 encoding. This is experimental and needs additional code to
2567 be useful, such as an ASN1 bio and some enhanced streaming
2570 Extend template encode functionality so that tagging is passed
2571 down to the template encoder.
2574 *) Let 'openssl req' fail if an argument to '-newkey' is not
2575 recognized instead of using RSA as a default.
2578 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2579 As these are not official, they are not included in "ALL";
2580 the "ECCdraft" ciphersuite group alias can be used to select them.
2581 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2583 *) Add ECDH engine support.
2584 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2586 *) Add ECDH in new directory crypto/ecdh/.
2587 [Douglas Stebila (Sun Microsystems Laboratories)]
2589 *) Let BN_rand_range() abort with an error after 100 iterations
2590 without success (which indicates a broken PRNG).
2593 *) Change BN_mod_sqrt() so that it verifies that the input value
2594 is really the square of the return value. (Previously,
2595 BN_mod_sqrt would show GIGO behaviour.)
2598 *) Add named elliptic curves over binary fields from X9.62, SECG,
2599 and WAP/WTLS; add OIDs that were still missing.
2601 [Sheueling Chang Shantz and Douglas Stebila
2602 (Sun Microsystems Laboratories)]
2604 *) Extend the EC library for elliptic curves over binary fields
2605 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2608 EC_GF2m_simple_method
2612 EC_GROUP_new_curve_GF2m
2613 EC_GROUP_set_curve_GF2m
2614 EC_GROUP_get_curve_GF2m
2615 EC_POINT_set_affine_coordinates_GF2m
2616 EC_POINT_get_affine_coordinates_GF2m
2617 EC_POINT_set_compressed_coordinates_GF2m
2619 Point compression for binary fields is disabled by default for
2620 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2623 As binary polynomials are represented as BIGNUMs, various members
2624 of the EC_GROUP and EC_POINT data structures can be shared
2625 between the implementations for prime fields and binary fields;
2626 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2627 are essentially identical to their ..._GFp counterparts.
2628 (For simplicity, the '..._GFp' prefix has been dropped from
2629 various internal method names.)
2631 An internal 'field_div' method (similar to 'field_mul' and
2632 'field_sqr') has been added; this is used only for binary fields.
2634 [Sheueling Chang Shantz and Douglas Stebila
2635 (Sun Microsystems Laboratories)]
2637 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2638 through methods ('mul', 'precompute_mult').
2640 The generic implementations (now internally called 'ec_wNAF_mul'
2641 and 'ec_wNAF_precomputed_mult') remain the default if these
2642 methods are undefined.
2644 [Sheueling Chang Shantz and Douglas Stebila
2645 (Sun Microsystems Laboratories)]
2647 *) New function EC_GROUP_get_degree, which is defined through
2648 EC_METHOD. For curves over prime fields, this returns the bit
2649 length of the modulus.
2651 [Sheueling Chang Shantz and Douglas Stebila
2652 (Sun Microsystems Laboratories)]
2654 *) New functions EC_GROUP_dup, EC_POINT_dup.
2655 (These simply call ..._new and ..._copy).
2657 [Sheueling Chang Shantz and Douglas Stebila
2658 (Sun Microsystems Laboratories)]
2660 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2661 Polynomials are represented as BIGNUMs (where the sign bit is not
2662 used) in the following functions [macros]:
2665 BN_GF2m_sub [= BN_GF2m_add]
2666 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2667 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2668 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2670 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2671 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2672 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2673 BN_GF2m_cmp [= BN_ucmp]
2675 (Note that only the 'mod' functions are actually for fields GF(2^m).
2676 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2678 For some functions, an the irreducible polynomial defining a
2679 field can be given as an 'unsigned int[]' with strictly
2680 decreasing elements giving the indices of those bits that are set;
2681 i.e., p[] represents the polynomial
2682 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2684 p[0] > p[1] > ... > p[k] = 0.
2685 This applies to the following functions:
2690 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2691 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2693 BN_GF2m_mod_sqrt_arr
2694 BN_GF2m_mod_solve_quad_arr
2698 Conversion can be performed by the following functions:
2703 bntest.c has additional tests for binary polynomial arithmetic.
2705 Two implementations for BN_GF2m_mod_div() are available.
2706 The default algorithm simply uses BN_GF2m_mod_inv() and
2707 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2708 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2709 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2711 [Sheueling Chang Shantz and Douglas Stebila
2712 (Sun Microsystems Laboratories)]
2714 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2715 functionality is disabled at compile-time.
2716 [Douglas Stebila <douglas.stebila@sun.com>]
2718 *) Change default behaviour of 'openssl asn1parse' so that more
2719 information is visible when viewing, e.g., a certificate:
2721 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2722 mode the content of non-printable OCTET STRINGs is output in a
2723 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2724 avoid the appearance of a printable string.
2725 [Nils Larsch <nla@trustcenter.de>]
2727 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2729 EC_GROUP_set_asn1_flag()
2730 EC_GROUP_get_asn1_flag()
2731 EC_GROUP_set_point_conversion_form()
2732 EC_GROUP_get_point_conversion_form()
2733 These control ASN1 encoding details:
2734 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2735 has been set to OPENSSL_EC_NAMED_CURVE.
2736 - Points are encoded in uncompressed form by default; options for
2737 asn1_for are as for point2oct, namely
2738 POINT_CONVERSION_COMPRESSED
2739 POINT_CONVERSION_UNCOMPRESSED
2740 POINT_CONVERSION_HYBRID
2742 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2745 EC_GROUP_get0_seed()
2746 EC_GROUP_get_seed_len()
2747 This is used only for ASN1 purposes (so far).
2748 [Nils Larsch <nla@trustcenter.de>]
2750 *) Add 'field_type' member to EC_METHOD, which holds the NID
2751 of the appropriate field type OID. The new function
2752 EC_METHOD_get_field_type() returns this value.
2753 [Nils Larsch <nla@trustcenter.de>]
2758 EC_POINT_point2hex()
2759 EC_POINT_hex2point()
2760 providing useful interfaces to EC_POINT_point2oct() and
2761 EC_POINT_oct2point().
2762 [Nils Larsch <nla@trustcenter.de>]
2764 *) Change internals of the EC library so that the functions
2765 EC_GROUP_set_generator()
2766 EC_GROUP_get_generator()
2767 EC_GROUP_get_order()
2768 EC_GROUP_get_cofactor()
2769 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2770 to methods, which would lead to unnecessary code duplication when
2771 adding different types of curves.
2772 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2774 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2775 arithmetic, and such that modified wNAFs are generated
2776 (which avoid length expansion in many cases).
2779 *) Add a function EC_GROUP_check_discriminant() (defined via
2780 EC_METHOD) that verifies that the curve discriminant is non-zero.
2782 Add a function EC_GROUP_check() that makes some sanity tests
2783 on a EC_GROUP, its generator and order. This includes
2784 EC_GROUP_check_discriminant().
2785 [Nils Larsch <nla@trustcenter.de>]
2787 *) Add ECDSA in new directory crypto/ecdsa/.
2789 Add applications 'openssl ecparam' and 'openssl ecdsa'
2790 (these are based on 'openssl dsaparam' and 'openssl dsa').
2792 ECDSA support is also included in various other files across the
2793 library. Most notably,
2794 - 'openssl req' now has a '-newkey ecdsa:file' option;
2795 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2796 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2797 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2798 them suitable for ECDSA where domain parameters must be
2799 extracted before the specific public key;
2800 - ECDSA engine support has been added.
2801 [Nils Larsch <nla@trustcenter.de>]
2803 *) Include some named elliptic curves, and add OIDs from X9.62,
2804 SECG, and WAP/WTLS. Each curve can be obtained from the new
2806 EC_GROUP_new_by_curve_name(),
2807 and the list of available named curves can be obtained with
2808 EC_get_builtin_curves().
2809 Also add a 'curve_name' member to EC_GROUP objects, which can be
2811 EC_GROUP_set_curve_name()
2812 EC_GROUP_get_curve_name()
2813 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2815 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2816 was actually never needed) and in BN_mul(). The removal in BN_mul()
2817 required a small change in bn_mul_part_recursive() and the addition
2818 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2819 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2820 bn_sub_words() and bn_add_words() except they take arrays with
2824 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2826 *) Cleanse PEM buffers before freeing them since they may contain
2828 [Benjamin Bennett <ben@psc.edu>]
2830 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2831 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2832 authentication-only ciphersuites.
2835 *) Since AES128 and AES256 share a single mask bit in the logic of
2836 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2837 kludge to work properly if AES128 is available and AES256 isn't.
2840 *) Expand security boundary to match 1.1.1 module.
2843 *) Remove redundant features: hash file source, editing of test vectors
2844 modify fipsld to use external fips_premain.c signature.
2847 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2848 run algorithm test programs.
2851 *) Make algorithm test programs more tolerant of whitespace.
2854 *) Have SSL/TLS server implementation tolerate "mismatched" record
2855 protocol version while receiving ClientHello even if the
2856 ClientHello is fragmented. (The server can't insist on the
2857 particular protocol version it has chosen before the ServerHello
2858 message has informed the client about his choice.)
2861 *) Load error codes if they are not already present instead of using a
2862 static variable. This allows them to be cleanly unloaded and reloaded.
2865 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2867 *) Introduce limits to prevent malicious keys being able to
2868 cause a denial of service. (CVE-2006-2940)
2869 [Steve Henson, Bodo Moeller]
2871 *) Fix ASN.1 parsing of certain invalid structures that can result
2872 in a denial of service. (CVE-2006-2937) [Steve Henson]
2874 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2875 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2877 *) Fix SSL client code which could crash if connecting to a
2878 malicious SSLv2 server. (CVE-2006-4343)
2879 [Tavis Ormandy and Will Drewry, Google Security Team]
2881 *) Change ciphersuite string processing so that an explicit
2882 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2883 will no longer include "AES128-SHA"), and any other similar
2884 ciphersuite (same bitmap) from *other* protocol versions (so that
2885 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2886 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2887 changes from 0.9.8b and 0.9.8d.
2890 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2892 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2893 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2895 *) Change the Unix randomness entropy gathering to use poll() when
2896 possible instead of select(), since the latter has some
2897 undesirable limitations.
2898 [Darryl Miles via Richard Levitte and Bodo Moeller]
2900 *) Disable rogue ciphersuites:
2902 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2903 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2904 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2906 The latter two were purportedly from
2907 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2910 Also deactive the remaining ciphersuites from
2911 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2912 unofficial, and the ID has long expired.
2915 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2916 dual-core machines) and other potential thread-safety issues.
2919 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2921 *) Adapt fipsld and the build system to link against the validated FIPS
2922 module in FIPS mode.
2925 *) Fixes for VC++ 2005 build under Windows.
2928 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2929 from a Windows bash shell such as MSYS. It is autodetected from the
2930 "config" script when run from a VC++ environment. Modify standard VC++
2931 build to use fipscanister.o from the GNU make build.
2934 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2936 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2937 The value now differs depending on if you build for FIPS or not.
2938 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2939 safely run with a non-FIPSed libcrypto, as it may crash because of
2940 the difference induced by this change.
2943 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2945 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2946 (part of SSL_OP_ALL). This option used to disable the
2947 countermeasure against man-in-the-middle protocol-version
2948 rollback in the SSL 2.0 server implementation, which is a bad
2949 idea. (CVE-2005-2969)
2951 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2952 for Information Security, National Institute of Advanced Industrial
2953 Science and Technology [AIST], Japan)]
2955 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2956 mainly for FIPS compliance and not fully integrated at this stage.
2959 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2960 the exponentiation using a fixed-length exponent. (Otherwise,
2961 the information leaked through timing could expose the secret key
2962 after many signatures; cf. Bleichenbacher's attack on DSA with
2966 *) Make a new fixed-window mod_exp implementation the default for
2967 RSA, DSA, and DH private-key operations so that the sequence of
2968 squares and multiplies and the memory access pattern are
2969 independent of the particular secret key. This will mitigate
2970 cache-timing and potential related attacks.
2972 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2973 and this is automatically used by BN_mod_exp_mont() if the new flag
2974 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2975 will use this BN flag for private exponents unless the flag
2976 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2977 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2979 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2981 *) Change the client implementation for SSLv23_method() and
2982 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2983 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2984 (Previously, the SSL 2.0 backwards compatible Client Hello
2985 message format would be used even with SSL_OP_NO_SSLv2.)
2988 *) Add support for smime-type MIME parameter in S/MIME messages which some
2992 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2993 a threadsafe manner. Modify rsa code to use new function and add calls
2994 to dsa and dh code (which had race conditions before).
2997 *) Include the fixed error library code in the C error file definitions
2998 instead of fixing them up at runtime. This keeps the error code
2999 structures constant.
3002 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3004 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3007 *) Fixes for newer kerberos headers. NB: the casts are needed because
3008 the 'length' field is signed on one version and unsigned on another
3009 with no (?) obvious way to tell the difference, without these VC++
3010 complains. Also the "definition" of FAR (blank) is no longer included
3011 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3012 some needed definitions.
3015 *) Undo Cygwin change.
3018 *) Added support for proxy certificates according to RFC 3820.
3019 Because they may be a security thread to unaware applications,
3020 they must be explicitely allowed in run-time. See
3021 docs/HOWTO/proxy_certificates.txt for further information.
3024 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3026 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3027 server and client random values. Previously
3028 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3029 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3031 This change has negligible security impact because:
3033 1. Server and client random values still have 24 bytes of pseudo random
3036 2. Server and client random values are sent in the clear in the initial
3039 3. The master secret is derived using the premaster secret (48 bytes in
3040 size for static RSA ciphersuites) as well as client server and random
3043 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3046 [Stephen Henson, reported by UK NISCC]
3048 *) Use Windows randomness collection on Cygwin.
3051 *) Fix hang in EGD/PRNGD query when communication socket is closed
3052 prematurely by EGD/PRNGD.
3053 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3055 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3058 *) Back-port of selected performance improvements from development
3059 branch, as well as improved support for PowerPC platforms.
3062 *) Add lots of checks for memory allocation failure, error codes to indicate
3063 failure and freeing up memory if a failure occurs.
3064 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3066 *) Add new -passin argument to dgst.
3069 *) Perform some character comparisons of different types in X509_NAME_cmp:
3070 this is needed for some certificates that reencode DNs into UTF8Strings
3071 (in violation of RFC3280) and can't or wont issue name rollover
3075 *) Make an explicit check during certificate validation to see that
3076 the CA setting in each certificate on the chain is correct. As a
3077 side effect always do the following basic checks on extensions,
3078 not just when there's an associated purpose to the check:
3080 - if there is an unhandled critical extension (unless the user
3081 has chosen to ignore this fault)
3082 - if the path length has been exceeded (if one is set at all)
3083 - that certain extensions fit the associated purpose (if one has
3087 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3089 *) Avoid a race condition when CRLs are checked in a multi threaded
3090 environment. This would happen due to the reordering of the revoked
3091 entries during signature checking and serial number lookup. Now the
3092 encoding is cached and the serial number sort performed under a lock.
3093 Add new STACK function sk_is_sorted().
3096 *) Add Delta CRL to the extension code.
3099 *) Various fixes to s3_pkt.c so alerts are sent properly.
3100 [David Holmes <d.holmes@f5.com>]
3102 *) Reduce the chances of duplicate issuer name and serial numbers (in
3103 violation of RFC3280) using the OpenSSL certificate creation utilities.
3104 This is done by creating a random 64 bit value for the initial serial
3105 number when a serial number file is created or when a self signed
3106 certificate is created using 'openssl req -x509'. The initial serial
3107 number file is created using 'openssl x509 -next_serial' in CA.pl
3108 rather than being initialized to 1.
3111 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3113 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3114 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3115 [Joe Orton, Steve Henson]
3117 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3119 [Joe Orton, Steve Henson]
3121 *) Make it possible to have multiple active certificates with the same
3122 subject in the CA index file. This is done only if the keyword
3123 'unique_subject' is set to 'no' in the main CA section (default
3124 if 'CA_default') of the configuration file. The value is saved
3125 with the database itself in a separate index attribute file,
3126 named like the index file with '.attr' appended to the name.
3129 *) X509 verify fixes. Disable broken certificate workarounds when
3130 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3131 keyUsage extension present. Don't accept CRLs with unhandled critical
3132 extensions: since verify currently doesn't process CRL extensions this
3133 rejects a CRL with *any* critical extensions. Add new verify error codes
3137 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3138 A clarification of RFC2560 will require the use of OCTET STRINGs and
3139 some implementations cannot handle the current raw format. Since OpenSSL
3140 copies and compares OCSP nonces as opaque blobs without any attempt at
3141 parsing them this should not create any compatibility issues.
3144 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3145 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3146 this HMAC (and other) operations are several times slower than OpenSSL
3150 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3151 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3153 *) Use the correct content when signing type "other".
3156 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3158 *) Fix various bugs revealed by running the NISCC test suite:
3160 Stop out of bounds reads in the ASN1 code when presented with
3161 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3163 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3165 If verify callback ignores invalid public key errors don't try to check
3166 certificate signature with the NULL public key.
3170 *) New -ignore_err option in ocsp application to stop the server
3171 exiting on the first error in a request.
3174 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3175 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3179 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3180 extra data after the compression methods not only for TLS 1.0
3181 but also for SSL 3.0 (as required by the specification).
3182 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3184 *) Change X509_certificate_type() to mark the key as exported/exportable
3185 when it's 512 *bits* long, not 512 bytes.
3188 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3189 blocks during encryption.
3192 *) Various fixes to base64 BIO and non blocking I/O. On write
3193 flushes were not handled properly if the BIO retried. On read
3194 data was not being buffered properly and had various logic bugs.
3195 This also affects blocking I/O when the data being decoded is a
3199 *) Various S/MIME bugfixes and compatibility changes:
3200 output correct application/pkcs7 MIME type if
3201 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3202 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3203 of files as .eml work). Correctly handle very long lines in MIME
3207 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3209 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3210 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3211 a protocol version number mismatch like a decryption error
3212 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3215 *) Turn on RSA blinding by default in the default implementation
3216 to avoid a timing attack. Applications that don't want it can call
3217 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3218 They would be ill-advised to do so in most cases.
3219 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3221 *) Change RSA blinding code so that it works when the PRNG is not
3222 seeded (in this case, the secret RSA exponent is abused as
3223 an unpredictable seed -- if it is not unpredictable, there
3224 is no point in blinding anyway). Make RSA blinding thread-safe
3225 by remembering the creator's thread ID in rsa->blinding and
3226 having all other threads use local one-time blinding factors
3227 (this requires more computation than sharing rsa->blinding, but
3228 avoids excessive locking; and if an RSA object is not shared
3229 between threads, blinding will still be very fast).
3232 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3233 ENGINE as defaults for all supported algorithms irrespective of
3234 the 'flags' parameter. 'flags' is now honoured, so applications
3235 should make sure they are passing it correctly.
3238 *) Target "mingw" now allows native Windows code to be generated in
3239 the Cygwin environment as well as with the MinGW compiler.
3242 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3244 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3245 via timing by performing a MAC computation even if incorrrect
3246 block cipher padding has been found. This is a countermeasure
3247 against active attacks where the attacker has to distinguish
3248 between bad padding and a MAC verification error. (CVE-2003-0078)
3250 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3251 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3252 Martin Vuagnoux (EPFL, Ilion)]
3254 *) Make the no-err option work as intended. The intention with no-err
3255 is not to have the whole error stack handling routines removed from
3256 libcrypto, it's only intended to remove all the function name and
3257 reason texts, thereby removing some of the footprint that may not
3258 be interesting if those errors aren't displayed anyway.
3260 NOTE: it's still possible for any application or module to have it's
3261 own set of error texts inserted. The routines are there, just not
3262 used by default when no-err is given.
3265 *) Add support for FreeBSD on IA64.
3266 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3268 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3269 Kerberos function mit_des_cbc_cksum(). Before this change,
3270 the value returned by DES_cbc_cksum() was like the one from
3271 mit_des_cbc_cksum(), except the bytes were swapped.
3272 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3274 *) Allow an application to disable the automatic SSL chain building.
3275 Before this a rather primitive chain build was always performed in
3276 ssl3_output_cert_chain(): an application had no way to send the
3277 correct chain if the automatic operation produced an incorrect result.
3279 Now the chain builder is disabled if either:
3281 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3283 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3285 The reasoning behind this is that an application would not want the
3286 auto chain building to take place if extra chain certificates are
3287 present and it might also want a means of sending no additional
3288 certificates (for example the chain has two certificates and the
3292 *) Add the possibility to build without the ENGINE framework.
3293 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3295 *) Under Win32 gmtime() can return NULL: check return value in
3296 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3299 *) DSA routines: under certain error conditions uninitialized BN objects
3300 could be freed. Solution: make sure initialization is performed early
3301 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3302 Nils Larsch <nla@trustcenter.de> via PR#459)
3305 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3306 checked on reconnect on the client side, therefore session resumption
3307 could still fail with a "ssl session id is different" error. This
3308 behaviour is masked when SSL_OP_ALL is used due to
3309 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3310 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3311 followup to PR #377.
3314 *) IA-32 assembler support enhancements: unified ELF targets, support
3315 for SCO/Caldera platforms, fix for Cygwin shared build.
3318 *) Add support for FreeBSD on sparc64. As a consequence, support for
3319 FreeBSD on non-x86 processors is separate from x86 processors on
3320 the config script, much like the NetBSD support.
3321 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3323 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3325 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3328 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3329 code (06) was taken as the first octet of the session ID and the last
3330 octet was ignored consequently. As a result SSLv2 client side session
3331 caching could not have worked due to the session ID mismatch between
3333 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3337 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3338 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3342 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3343 seems that in spite of existing for more than a year, many application
3344 author have done nothing to provide the necessary callbacks, which
3345 means that this particular engine will not work properly anywhere.
3346 This is a very unfortunate situation which forces us, in the name
3347 of usability, to give the hw_ncipher.c a static lock, which is part
3349 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3350 appear in 0.9.8 or later. We EXPECT application authors to have
3351 dealt properly with this when 0.9.8 is released (unless we actually
3352 make such changes in the libcrypto locking code that changes will
3353 have to be made anyway).
3356 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3357 octets have been read, EOF or an error occurs. Without this change
3358 some truncated ASN1 structures will not produce an error.
3361 *) Disable Heimdal support, since it hasn't been fully implemented.
3362 Still give the possibility to force the use of Heimdal, but with
3363 warnings and a request that patches get sent to openssl-dev.
3366 *) Add the VC-CE target, introduce the WINCE sysname, and add
3367 INSTALL.WCE and appropriate conditionals to make it build.
3368 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3370 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3371 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3372 edit numbers of the version.
3373 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3375 *) Introduce safe string copy and catenation functions
3376 (BUF_strlcpy() and BUF_strlcat()).
3377 [Ben Laurie (CHATS) and Richard Levitte]
3379 *) Avoid using fixed-size buffers for one-line DNs.
3380 [Ben Laurie (CHATS)]
3382 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3383 resizing buffers containing secrets, and use where appropriate.
3384 [Ben Laurie (CHATS)]
3386 *) Avoid using fixed size buffers for configuration file location.
3387 [Ben Laurie (CHATS)]
3389 *) Avoid filename truncation for various CA files.
3390 [Ben Laurie (CHATS)]
3392 *) Use sizeof in preference to magic numbers.
3393 [Ben Laurie (CHATS)]
3395 *) Avoid filename truncation in cert requests.
3396 [Ben Laurie (CHATS)]
3398 *) Add assertions to check for (supposedly impossible) buffer
3400 [Ben Laurie (CHATS)]
3402 *) Don't cache truncated DNS entries in the local cache (this could
3403 potentially lead to a spoofing attack).
3404 [Ben Laurie (CHATS)]
3406 *) Fix various buffers to be large enough for hex/decimal
3407 representations in a platform independent manner.
3408 [Ben Laurie (CHATS)]
3410 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3411 resizing buffers containing secrets, and use where appropriate.
3412 [Ben Laurie (CHATS)]
3414 *) Add BIO_indent() to avoid much slightly worrying code to do
3416 [Ben Laurie (CHATS)]
3418 *) Convert sprintf()/BIO_puts() to BIO_printf().
3419 [Ben Laurie (CHATS)]
3421 *) buffer_gets() could terminate with the buffer only half
3423 [Ben Laurie (CHATS)]
3425 *) Add assertions to prevent user-supplied crypto functions from
3426 overflowing internal buffers by having large block sizes, etc.
3427 [Ben Laurie (CHATS)]
3429 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3431 [Ben Laurie (CHATS)]
3433 *) Eliminate unused copy of key in RC4.
3434 [Ben Laurie (CHATS)]
3436 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3437 [Ben Laurie (CHATS)]
3439 *) Fix off-by-one error in EGD path.
3440 [Ben Laurie (CHATS)]
3442 *) If RANDFILE path is too long, ignore instead of truncating.
3443 [Ben Laurie (CHATS)]
3445 *) Eliminate unused and incorrectly sized X.509 structure
3447 [Ben Laurie (CHATS)]
3449 *) Eliminate unused and dangerous function knumber().
3450 [Ben Laurie (CHATS)]
3452 *) Eliminate unused and dangerous structure, KSSL_ERR.
3453 [Ben Laurie (CHATS)]
3455 *) Protect against overlong session ID context length in an encoded
3456 session object. Since these are local, this does not appear to be
3458 [Ben Laurie (CHATS)]
3460 *) Change from security patch (see 0.9.6e below) that did not affect
3461 the 0.9.6 release series:
3463 Remote buffer overflow in SSL3 protocol - an attacker could
3464 supply an oversized master key in Kerberos-enabled versions.
3466 [Ben Laurie (CHATS)]
3468 *) Change the SSL kerb5 codes to match RFC 2712.
3471 *) Make -nameopt work fully for req and add -reqopt switch.
3472 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3474 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3475 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3477 *) Make sure tests can be performed even if the corresponding algorithms
3478 have been removed entirely. This was also the last step to make
3479 OpenSSL compilable with DJGPP under all reasonable conditions.
3480 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3482 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3483 to allow version independent disabling of normally unselected ciphers,
3484 which may be activated as a side-effect of selecting a single cipher.
3486 (E.g., cipher list string "RSA" enables ciphersuites that are left
3487 out of "ALL" because they do not provide symmetric encryption.
3488 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3489 [Lutz Jaenicke, Bodo Moeller]
3491 *) Add appropriate support for separate platform-dependent build
3492 directories. The recommended way to make a platform-dependent
3493 build directory is the following (tested on Linux), maybe with
3496 # Place yourself outside of the OpenSSL source tree. In
3497 # this example, the environment variable OPENSSL_SOURCE
3498 # is assumed to contain the absolute OpenSSL source directory.
3499 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3500 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3501 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3502 mkdir -p `dirname $F`
3503 ln -s $OPENSSL_SOURCE/$F $F
3506 To be absolutely sure not to disturb the source tree, a "make clean"
3507 is a good thing. If it isn't successfull, don't worry about it,
3508 it probably means the source directory is very clean.
3511 *) Make sure any ENGINE control commands make local copies of string
3512 pointers passed to them whenever necessary. Otherwise it is possible
3513 the caller may have overwritten (or deallocated) the original string
3514 data when a later ENGINE operation tries to use the stored values.
3515 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3517 *) Improve diagnostics in file reading and command-line digests.
3518 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3520 *) Add AES modes CFB and OFB to the object database. Correct an
3521 error in AES-CFB decryption.
3524 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3525 allows existing EVP_CIPHER_CTX structures to be reused after
3526 calling EVP_*Final(). This behaviour is used by encryption
3527 BIOs and some applications. This has the side effect that
3528 applications must explicitly clean up cipher contexts with
3529 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3532 *) Check the values of dna and dnb in bn_mul_recursive before calling
3533 bn_mul_comba (a non zero value means the a or b arrays do not contain
3534 n2 elements) and fallback to bn_mul_normal if either is not zero.
3537 *) Fix escaping of non-ASCII characters when using the -subj option
3538 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3541 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3542 form for "surname", serialNumber has no short form.
3543 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3544 therefore remove "mail" short name for "internet 7".
3545 The OID for unique identifiers in X509 certificates is
3546 x500UniqueIdentifier, not uniqueIdentifier.
3547 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3550 *) Add an "init" command to the ENGINE config module and auto initialize
3551 ENGINEs. Without any "init" command the ENGINE will be initialized
3552 after all ctrl commands have been executed on it. If init=1 the
3553 ENGINE is initailized at that point (ctrls before that point are run
3554 on the uninitialized ENGINE and after on the initialized one). If
3555 init=0 then the ENGINE will not be iniatialized at all.
3558 *) Fix the 'app_verify_callback' interface so that the user-defined
3559 argument is actually passed to the callback: In the
3560 SSL_CTX_set_cert_verify_callback() prototype, the callback
3561 declaration has been changed from
3564 int (*cb)(X509_STORE_CTX *,void *);
3565 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3566 i=s->ctx->app_verify_callback(&ctx)
3567 has been changed into
3568 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3570 To update applications using SSL_CTX_set_cert_verify_callback(),
3571 a dummy argument can be added to their callback functions.
3572 [D. K. Smetters <smetters@parc.xerox.com>]
3574 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3575 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3577 *) Add and OPENSSL_LOAD_CONF define which will cause
3578 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3579 This allows older applications to transparently support certain
3580 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3581 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3582 load the config file and OPENSSL_add_all_algorithms_conf() which will
3583 always load it have also been added.
3586 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3587 Adjust NIDs and EVP layer.
3588 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3590 *) Config modules support in openssl utility.
3592 Most commands now load modules from the config file,
3593 though in a few (such as version) this isn't done
3594 because it couldn't be used for anything.
3596 In the case of ca and req the config file used is
3597 the same as the utility itself: that is the -config
3598 command line option can be used to specify an
3602 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3603 use "openssl_conf" if filename is NULL use default openssl config file.
3606 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3607 config section name. Add a new flag to tolerate a missing config file
3608 and move code to CONF_modules_load_file().
3611 *) Support for crypto accelerator cards from Accelerated Encryption
3612 Processing, www.aep.ie. (Use engine 'aep')
3613 The support was copied from 0.9.6c [engine] and adapted/corrected
3614 to work with the new engine framework.
3615 [AEP Inc. and Richard Levitte]
3617 *) Support for SureWare crypto accelerator cards from Baltimore
3618 Technologies. (Use engine 'sureware')
3619 The support was copied from 0.9.6c [engine] and adapted
3620 to work with the new engine framework.
3623 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3624 make the newer ENGINE framework commands for the CHIL engine work.
3625 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3627 *) Make it possible to produce shared libraries on ReliantUNIX.
3628 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3630 *) Add the configuration target debug-linux-ppro.
3631 Make 'openssl rsa' use the general key loading routines
3632 implemented in apps.c, and make those routines able to
3633 handle the key format FORMAT_NETSCAPE and the variant
3635 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3637 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3638 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3640 *) Add -keyform to rsautl, and document -engine.
3641 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3643 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3644 BIO_R_NO_SUCH_FILE error code rather than the generic
3645 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3648 *) Add new functions
3650 ERR_peek_last_error_line
3651 ERR_peek_last_error_line_data.
3652 These are similar to
3655 ERR_peek_error_line_data,
3656 but report on the latest error recorded rather than the first one
3657 still in the error queue.
3658 [Ben Laurie, Bodo Moeller]
3660 *) default_algorithms option in ENGINE config module. This allows things
3662 default_algorithms = ALL
3663 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3666 *) Prelminary ENGINE config module.
3669 *) New experimental application configuration code.
3672 *) Change the AES code to follow the same name structure as all other
3673 symmetric ciphers, and behave the same way. Move everything to
3674 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3675 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3677 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3678 [Ben Laurie and Theo de Raadt]
3680 *) Add option to output public keys in req command.
3681 [Massimiliano Pala madwolf@openca.org]
3683 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3684 (up to about 10% better than before for P-192 and P-224).
3687 *) New functions/macros
3689 SSL_CTX_set_msg_callback(ctx, cb)
3690 SSL_CTX_set_msg_callback_arg(ctx, arg)
3691 SSL_set_msg_callback(ssl, cb)
3692 SSL_set_msg_callback_arg(ssl, arg)
3694 to request calling a callback function
3696 void cb(int write_p, int version, int content_type,
3697 const void *buf, size_t len, SSL *ssl, void *arg)
3699 whenever a protocol message has been completely received
3700 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3701 protocol version according to which the SSL library interprets
3702 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3703 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3704 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3705 specification (change_cipher_spec(20), alert(21), handshake(22)).
3706 'buf' and 'len' point to the actual message, 'ssl' to the
3707 SSL object, and 'arg' is the application-defined value set by
3708 SSL[_CTX]_set_msg_callback_arg().
3710 'openssl s_client' and 'openssl s_server' have new '-msg' options
3711 to enable a callback that displays all protocol messages.
3714 *) Change the shared library support so shared libraries are built as
3715 soon as the corresponding static library is finished, and thereby get
3716 openssl and the test programs linked against the shared library.
3717 This still only happens when the keyword "shard" has been given to
3718 the configuration scripts.
3720 NOTE: shared library support is still an experimental thing, and
3721 backward binary compatibility is still not guaranteed.
3722 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3724 *) Add support for Subject Information Access extension.
3725 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3727 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3728 additional bytes when new memory had to be allocated, not just
3729 when reusing an existing buffer.
3732 *) New command line and configuration option 'utf8' for the req command.
3733 This allows field values to be specified as UTF8 strings.
3736 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3737 runs for the former and machine-readable output for the latter.
3740 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3741 of the e-mail address in the DN (i.e., it will go into a certificate
3742 extension only). The new configuration file option 'email_in_dn = no'
3743 has the same effect.
3744 [Massimiliano Pala madwolf@openca.org]
3746 *) Change all functions with names starting with des_ to be starting
3747 with DES_ instead. Add wrappers that are compatible with libdes,
3748 but are named _ossl_old_des_*. Finally, add macros that map the
3749 des_* symbols to the corresponding _ossl_old_des_* if libdes
3750 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3751 desired, the des_* symbols will be mapped to DES_*, with one
3754 Since we provide two compatibility mappings, the user needs to
3755 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3756 compatibility is desired. The default (i.e., when that macro
3757 isn't defined) is OpenSSL 0.9.6c compatibility.
3759 There are also macros that enable and disable the support of old
3760 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3761 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3762 are defined, the default will apply: to support the old des routines.
3764 In either case, one must include openssl/des.h to get the correct
3765 definitions. Do not try to just include openssl/des_old.h, that
3768 NOTE: This is a major break of an old API into a new one. Software
3769 authors are encouraged to switch to the DES_ style functions. Some
3770 time in the future, des_old.h and the libdes compatibility functions
3771 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3772 default), and then completely removed.
3775 *) Test for certificates which contain unsupported critical extensions.
3776 If such a certificate is found during a verify operation it is
3777 rejected by default: this behaviour can be overridden by either
3778 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3779 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3780 X509_supported_extension() has also been added which returns 1 if a
3781 particular extension is supported.
3784 *) Modify the behaviour of EVP cipher functions in similar way to digests
3785 to retain compatibility with existing code.
3788 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3789 compatibility with existing code. In particular the 'ctx' parameter does
3790 not have to be to be initialized before the call to EVP_DigestInit() and
3791 it is tidied up after a call to EVP_DigestFinal(). New function
3792 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3793 EVP_MD_CTX_copy() changed to not require the destination to be
3794 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3795 requires the destination to be valid.
3797 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3798 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3801 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3802 so that complete 'Handshake' protocol structures are kept in memory
3803 instead of overwriting 'msg_type' and 'length' with 'body' data.
3806 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3807 [Massimo Santin via Richard Levitte]
3809 *) Major restructuring to the underlying ENGINE code. This includes
3810 reduction of linker bloat, separation of pure "ENGINE" manipulation
3811 (initialisation, etc) from functionality dealing with implementations
3812 of specific crypto iterfaces. This change also introduces integrated
3813 support for symmetric ciphers and digest implementations - so ENGINEs
3814 can now accelerate these by providing EVP_CIPHER and EVP_MD
3815 implementations of their own. This is detailed in crypto/engine/README
3816 as it couldn't be adequately described here. However, there are a few
3817 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3818 were changed in the original introduction of ENGINE code have now
3819 reverted back - the hooking from this code to ENGINE is now a good
3820 deal more passive and at run-time, operations deal directly with
3821 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3822 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3823 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3824 they were not being used by the framework as there is no concept of a
3825 BIGNUM_METHOD and they could not be generalised to the new
3826 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3827 ENGINE_cpy() has been removed as it cannot be consistently defined in
3831 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3834 *) Change mkdef.pl to sort symbols that get the same entry number,
3835 and make sure the automatically generated functions ERR_load_*
3836 become part of libeay.num as well.
3839 *) New function SSL_renegotiate_pending(). This returns true once
3840 renegotiation has been requested (either SSL_renegotiate() call
3841 or HelloRequest/ClientHello receveived from the peer) and becomes
3842 false once a handshake has been completed.
3843 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3844 sends a HelloRequest, but does not ensure that a handshake takes
3845 place. SSL_renegotiate_pending() is useful for checking if the
3846 client has followed the request.)
3849 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3850 By default, clients may request session resumption even during
3851 renegotiation (if session ID contexts permit); with this option,
3852 session resumption is possible only in the first handshake.
3854 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3855 more bits available for options that should not be part of
3856 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3859 *) Add some demos for certificate and certificate request creation.
3862 *) Make maximum certificate chain size accepted from the peer application
3863 settable (SSL*_get/set_max_cert_list()), as proposed by
3864 "Douglas E. Engert" <deengert@anl.gov>.
3867 *) Add support for shared libraries for Unixware-7
3868 (Boyd Lynn Gerber <gerberb@zenez.com>).
3871 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3872 be done prior to destruction. Use this to unload error strings from
3873 ENGINEs that load their own error strings. NB: This adds two new API
3874 functions to "get" and "set" this destroy handler in an ENGINE.
3877 *) Alter all existing ENGINE implementations (except "openssl" and
3878 "openbsd") to dynamically instantiate their own error strings. This
3879 makes them more flexible to be built both as statically-linked ENGINEs
3880 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3881 Also, add stub code to each that makes building them as self-contained
3882 shared-libraries easier (see README.ENGINE).
3885 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3886 implementations into applications that are completely implemented in
3887 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3888 commands that can be used to configure what shared-library to load and
3889 to control aspects of the way it is handled. Also, made an update to
3890 the README.ENGINE file that brings its information up-to-date and
3891 provides some information and instructions on the "dynamic" ENGINE
3892 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3895 *) Make it possible to unload ranges of ERR strings with a new
3896 "ERR_unload_strings" function.
3899 *) Add a copy() function to EVP_MD.
3902 *) Make EVP_MD routines take a context pointer instead of just the
3903 md_data void pointer.
3906 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3907 that the digest can only process a single chunk of data
3908 (typically because it is provided by a piece of
3909 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3910 is only going to provide a single chunk of data, and hence the
3911 framework needn't accumulate the data for oneshot drivers.
3914 *) As with "ERR", make it possible to replace the underlying "ex_data"
3915 functions. This change also alters the storage and management of global
3916 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3917 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3918 index counters. The API functions that use this state have been changed
3919 to take a "class_index" rather than pointers to the class's local STACK
3920 and counter, and there is now an API function to dynamically create new
3921 classes. This centralisation allows us to (a) plug a lot of the
3922 thread-safety problems that existed, and (b) makes it possible to clean
3923 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3924 such data would previously have always leaked in application code and
3925 workarounds were in place to make the memory debugging turn a blind eye
3926 to it. Application code that doesn't use this new function will still
3927 leak as before, but their memory debugging output will announce it now
3928 rather than letting it slide.
3930 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3931 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3932 has a return value to indicate success or failure.
3935 *) Make it possible to replace the underlying "ERR" functions such that the
3936 global state (2 LHASH tables and 2 locks) is only used by the "default"
3937 implementation. This change also adds two functions to "get" and "set"
3938 the implementation prior to it being automatically set the first time
3939 any other ERR function takes place. Ie. an application can call "get",
3940 pass the return value to a module it has just loaded, and that module
3941 can call its own "set" function using that value. This means the
3942 module's "ERR" operations will use (and modify) the error state in the
3943 application and not in its own statically linked copy of OpenSSL code.
3946 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3947 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3948 the operation, and provides a more encapsulated way for external code
3949 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3950 to use these functions rather than manually incrementing the counts.
3952 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3955 *) Add EVP test program.
3958 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3961 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3962 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3963 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3964 These allow a CRL to be built without having to access X509_CRL fields
3965 directly. Modify 'ca' application to use new functions.
3968 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3969 bug workarounds. Rollback attack detection is a security feature.
3970 The problem will only arise on OpenSSL servers when TLSv1 is not
3971 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3972 Software authors not wanting to support TLSv1 will have special reasons
3973 for their choice and can explicitly enable this option.
3974 [Bodo Moeller, Lutz Jaenicke]
3976 *) Rationalise EVP so it can be extended: don't include a union of
3977 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3978 (similar to those existing for EVP_CIPHER_CTX).
3983 EVP_MD_CTX_init(&md); /* new function call */
3984 EVP_DigestInit(&md, EVP_sha1());
3985 EVP_DigestUpdate(&md, in, len);
3986 EVP_DigestFinal(&md, out, NULL);
3987 EVP_MD_CTX_cleanup(&md); /* new function call */
3991 *) Make DES key schedule conform to the usual scheme, as well as
3992 correcting its structure. This means that calls to DES functions
3993 now have to pass a pointer to a des_key_schedule instead of a
3994 plain des_key_schedule (which was actually always a pointer
3997 des_key_schedule ks;
3999 des_set_key_checked(..., &ks);
4000 des_ncbc_encrypt(..., &ks, ...);
4002 (Note that a later change renames 'des_...' into 'DES_...'.)
4005 *) Initial reduction of linker bloat: the use of some functions, such as
4006 PEM causes large amounts of unused functions to be linked in due to
4007 poor organisation. For example pem_all.c contains every PEM function
4008 which has a knock on effect of linking in large amounts of (unused)
4009 ASN1 code. Grouping together similar functions and splitting unrelated
4010 functions prevents this.
4013 *) Cleanup of EVP macros.
4016 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4017 correct _ecb suffix.
4020 *) Add initial OCSP responder support to ocsp application. The
4021 revocation information is handled using the text based index
4022 use by the ca application. The responder can either handle
4023 requests generated internally, supplied in files (for example
4024 via a CGI script) or using an internal minimal server.
4027 *) Add configuration choices to get zlib compression for TLS.
4030 *) Changes to Kerberos SSL for RFC 2712 compliance:
4031 1. Implemented real KerberosWrapper, instead of just using
4032 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4033 2. Implemented optional authenticator field of KerberosWrapper.
4035 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4036 and authenticator structs; see crypto/krb5/.
4038 Generalized Kerberos calls to support multiple Kerberos libraries.
4039 [Vern Staats <staatsvr@asc.hpc.mil>,
4040 Jeffrey Altman <jaltman@columbia.edu>
4041 via Richard Levitte]
4043 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4044 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4045 values for each of the key sizes rather than having just
4046 parameters (and 'speed' generating keys each time).
4049 *) Speed up EVP routines.
4052 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4053 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4054 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4055 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4057 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4058 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4059 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4062 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4064 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4067 *) Added the OS2-EMX target.
4068 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4070 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4071 to support NCONF routines in extension code. New function CONF_set_nconf()
4072 to allow functions which take an NCONF to also handle the old LHASH
4073 structure: this means that the old CONF compatible routines can be
4074 retained (in particular wrt extensions) without having to duplicate the
4075 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4078 *) Enhance the general user interface with mechanisms for inner control
4079 and with possibilities to have yes/no kind of prompts.
4082 *) Change all calls to low level digest routines in the library and
4083 applications to use EVP. Add missing calls to HMAC_cleanup() and
4084 don't assume HMAC_CTX can be copied using memcpy().
4085 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4087 *) Add the possibility to control engines through control names but with
4088 arbitrary arguments instead of just a string.
4089 Change the key loaders to take a UI_METHOD instead of a callback
4090 function pointer. NOTE: this breaks binary compatibility with earlier
4091 versions of OpenSSL [engine].
4092 Adapt the nCipher code for these new conditions and add a card insertion
4096 *) Enhance the general user interface with mechanisms to better support
4097 dialog box interfaces, application-defined prompts, the possibility
4098 to use defaults (for example default passwords from somewhere else)
4099 and interrupts/cancellations.
4102 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4103 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4106 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4107 tidy up some unnecessarily weird code in 'sk_new()').
4108 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4110 *) Change the key loading routines for ENGINEs to use the same kind
4111 callback (pem_password_cb) as all other routines that need this
4115 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4116 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4117 than this minimum value is recommended.
4120 *) New random seeder for OpenVMS, using the system process statistics
4121 that are easily reachable.
4124 *) Windows apparently can't transparently handle global
4125 variables defined in DLLs. Initialisations such as:
4127 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4129 wont compile. This is used by the any applications that need to
4130 declare their own ASN1 modules. This was fixed by adding the option
4131 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4132 needed for static libraries under Win32.
4135 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4136 setting of purpose and trust fields. New X509_STORE trust and
4137 purpose functions and tidy up setting in other SSL functions.
4140 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4141 structure. These are inherited by X509_STORE_CTX when it is
4142 initialised. This allows various defaults to be set in the
4143 X509_STORE structure (such as flags for CRL checking and custom
4144 purpose or trust settings) for functions which only use X509_STORE_CTX
4145 internally such as S/MIME.
4147 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4148 trust settings if they are not set in X509_STORE. This allows X509_STORE
4149 purposes and trust (in S/MIME for example) to override any set by default.
4151 Add command line options for CRL checking to smime, s_client and s_server
4155 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4156 are set then the CRL is looked up in the X509_STORE structure and
4157 its validity and signature checked, then if the certificate is found
4158 in the CRL the verify fails with a revoked error.
4160 Various new CRL related callbacks added to X509_STORE_CTX structure.
4162 Command line options added to 'verify' application to support this.
4164 This needs some additional work, such as being able to handle multiple
4165 CRLs with different times, extension based lookup (rather than just
4166 by subject name) and ultimately more complete V2 CRL extension
4170 *) Add a general user interface API (crypto/ui/). This is designed
4171 to replace things like des_read_password and friends (backward
4172 compatibility functions using this new API are provided).
4173 The purpose is to remove prompting functions from the DES code
4174 section as well as provide for prompting through dialog boxes in
4175 a window system and the like.
4178 *) Add "ex_data" support to ENGINE so implementations can add state at a
4179 per-structure level rather than having to store it globally.
4182 *) Make it possible for ENGINE structures to be copied when retrieved by
4183 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4184 This causes the "original" ENGINE structure to act like a template,
4185 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4186 operational state can be localised to each ENGINE structure, despite the
4187 fact they all share the same "methods". New ENGINE structures returned in
4188 this case have no functional references and the return value is the single
4189 structural reference. This matches the single structural reference returned
4190 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4194 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4195 needs to match any other type at all we need to manually clear the
4199 *) Changes to the "openssl engine" utility to include;
4200 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4201 about an ENGINE's available control commands.
4202 - executing control commands from command line arguments using the
4203 '-pre' and '-post' switches. '-post' is only used if '-t' is
4204 specified and the ENGINE is successfully initialised. The syntax for
4205 the individual commands are colon-separated, for example;
4206 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4209 *) New dynamic control command support for ENGINEs. ENGINEs can now
4210 declare their own commands (numbers), names (strings), descriptions,
4211 and input types for run-time discovery by calling applications. A
4212 subset of these commands are implicitly classed as "executable"
4213 depending on their input type, and only these can be invoked through
4214 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4215 can be based on user input, config files, etc). The distinction is
4216 that "executable" commands cannot return anything other than a boolean
4217 result and can only support numeric or string input, whereas some
4218 discoverable commands may only be for direct use through
4219 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4220 pointers, or other custom uses. The "executable" commands are to
4221 support parameterisations of ENGINE behaviour that can be
4222 unambiguously defined by ENGINEs and used consistently across any
4223 OpenSSL-based application. Commands have been added to all the
4224 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4225 control over shared-library paths without source code alterations.
4228 *) Changed all ENGINE implementations to dynamically allocate their
4229 ENGINEs rather than declaring them statically. Apart from this being
4230 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4231 this also allows the implementations to compile without using the
4232 internal engine_int.h header.
4235 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4236 'const' value. Any code that should be able to modify a RAND_METHOD
4237 should already have non-const pointers to it (ie. they should only
4238 modify their own ones).
4241 *) Made a variety of little tweaks to the ENGINE code.
4242 - "atalla" and "ubsec" string definitions were moved from header files
4243 to C code. "nuron" string definitions were placed in variables
4244 rather than hard-coded - allowing parameterisation of these values
4245 later on via ctrl() commands.
4246 - Removed unused "#if 0"'d code.
4247 - Fixed engine list iteration code so it uses ENGINE_free() to release
4248 structural references.
4249 - Constified the RAND_METHOD element of ENGINE structures.
4250 - Constified various get/set functions as appropriate and added
4251 missing functions (including a catch-all ENGINE_cpy that duplicates
4252 all ENGINE values onto a new ENGINE except reference counts/state).
4253 - Removed NULL parameter checks in get/set functions. Setting a method
4254 or function to NULL is a way of cancelling out a previously set
4255 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4256 and doesn't justify the extra error symbols and code.
4257 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4258 flags from engine_int.h to engine.h.
4259 - Changed prototypes for ENGINE handler functions (init(), finish(),
4260 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4263 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4264 to the algorithm using long division. The binary algorithm can be
4265 used only if the modulus is odd. On 32-bit systems, it is faster
4266 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4267 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4268 up to 450 bits. In 64-bit environments, the binary algorithm
4269 appears to be advantageous for much longer moduli; here we use it
4270 for moduli up to 2048 bits.
4273 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4274 could not support the combine flag in choice fields.
4277 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4278 extensions from a certificate request to the certificate.
4281 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4282 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4283 file: this allows the display of the certificate about to be
4284 signed to be customised, to allow certain fields to be included
4285 or excluded and extension details. The old system didn't display
4286 multicharacter strings properly, omitted fields not in the policy
4287 and couldn't display additional details such as extensions.
4290 *) Function EC_POINTs_mul for multiple scalar multiplication
4291 of an arbitrary number of elliptic curve points
4292 \sum scalars[i]*points[i],
4293 optionally including the generator defined for the EC_GROUP:
4294 scalar*generator + \sum scalars[i]*points[i].
4296 EC_POINT_mul is a simple wrapper function for the typical case
4297 that the point list has just one item (besides the optional
4301 *) First EC_METHODs for curves over GF(p):
4303 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4304 operations and provides various method functions that can also
4305 operate with faster implementations of modular arithmetic.
4307 EC_GFp_mont_method() reuses most functions that are part of
4308 EC_GFp_simple_method, but uses Montgomery arithmetic.
4310 [Bodo Moeller; point addition and point doubling
4311 implementation directly derived from source code provided by
4312 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4314 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4315 crypto/ec/ec_lib.c):
4317 Curves are EC_GROUP objects (with an optional group generator)
4318 based on EC_METHODs that are built into the library.
4320 Points are EC_POINT objects based on EC_GROUP objects.
4322 Most of the framework would be able to handle curves over arbitrary
4323 finite fields, but as there are no obvious types for fields other
4324 than GF(p), some functions are limited to that for now.
4327 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4328 that the file contains a complete HTTP response.
4331 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4332 change the def and num file printf format specifier from "%-40sXXX"
4333 to "%-39s XXX". The latter will always guarantee a space after the
4334 field while the former will cause them to run together if the field
4335 is 40 of more characters long.
4338 *) Constify the cipher and digest 'method' functions and structures
4339 and modify related functions to take constant EVP_MD and EVP_CIPHER
4343 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4344 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4347 *) Modify EVP_Digest*() routines so they now return values. Although the
4348 internal software routines can never fail additional hardware versions
4352 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4354 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4355 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4358 ERR_R_NESTED_ASN1_ERROR
4360 ERR_R_MISSING_ASN1_EOS
4361 were 4 .. 9, conflicting with
4362 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4364 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4365 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4367 Add new error code 'ERR_R_INTERNAL_ERROR'.
4370 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4374 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4375 sets the subject name for a new request or supersedes the
4376 subject name in a given request. Formats that can be parsed are
4377 'CN=Some Name, OU=myOU, C=IT'
4379 'CN=Some Name/OU=myOU/C=IT'.
4381 Add options '-batch' and '-verbose' to 'openssl req'.
4382 [Massimiliano Pala <madwolf@hackmasters.net>]
4384 *) Introduce the possibility to access global variables through
4385 functions on platform were that's the best way to handle exporting
4386 global variables in shared libraries. To enable this functionality,
4387 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4388 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4389 is normally done by Configure or something similar).
4391 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4392 in the source file (foo.c) like this:
4394 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4395 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4397 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4398 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4400 OPENSSL_DECLARE_GLOBAL(int,foo);
4401 #define foo OPENSSL_GLOBAL_REF(foo)
4402 OPENSSL_DECLARE_GLOBAL(double,bar);
4403 #define bar OPENSSL_GLOBAL_REF(bar)
4405 The #defines are very important, and therefore so is including the
4406 header file everywhere where the defined globals are used.
4408 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4409 of ASN.1 items, but that structure is a bit different.
4411 The largest change is in util/mkdef.pl which has been enhanced with
4412 better and easier to understand logic to choose which symbols should
4413 go into the Windows .def files as well as a number of fixes and code
4414 cleanup (among others, algorithm keywords are now sorted
4415 lexicographically to avoid constant rewrites).
4418 *) In BN_div() keep a copy of the sign of 'num' before writing the
4419 result to 'rm' because if rm==num the value will be overwritten
4420 and produce the wrong result if 'num' is negative: this caused
4421 problems with BN_mod() and BN_nnmod().
4424 *) Function OCSP_request_verify(). This checks the signature on an
4425 OCSP request and verifies the signer certificate. The signer
4426 certificate is just checked for a generic purpose and OCSP request
4430 *) Add OCSP_check_validity() function to check the validity of OCSP
4431 responses. OCSP responses are prepared in real time and may only
4432 be a few seconds old. Simply checking that the current time lies
4433 between thisUpdate and nextUpdate max reject otherwise valid responses
4434 caused by either OCSP responder or client clock inaccuracy. Instead
4435 we allow thisUpdate and nextUpdate to fall within a certain period of
4436 the current time. The age of the response can also optionally be
4437 checked. Two new options -validity_period and -status_age added to
4441 *) If signature or public key algorithm is unrecognized print out its
4442 OID rather that just UNKNOWN.
4445 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4446 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4447 ID to be generated from the issuer certificate alone which can then be
4448 passed to OCSP_id_issuer_cmp().
4451 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4452 ASN1 modules to export functions returning ASN1_ITEM pointers
4453 instead of the ASN1_ITEM structures themselves. This adds several
4454 new macros which allow the underlying ASN1 function/structure to
4455 be accessed transparently. As a result code should not use ASN1_ITEM
4456 references directly (such as &X509_it) but instead use the relevant
4457 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4458 use of the new ASN1 code on platforms where exporting structures
4459 is problematical (for example in shared libraries) but exporting
4460 functions returning pointers to structures is not.
4463 *) Add support for overriding the generation of SSL/TLS session IDs.
4464 These callbacks can be registered either in an SSL_CTX or per SSL.
4465 The purpose of this is to allow applications to control, if they wish,
4466 the arbitrary values chosen for use as session IDs, particularly as it
4467 can be useful for session caching in multiple-server environments. A
4468 command-line switch for testing this (and any client code that wishes
4469 to use such a feature) has been added to "s_server".
4470 [Geoff Thorpe, Lutz Jaenicke]
4472 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4473 of the form '#if defined(...) || defined(...) || ...' and
4474 '#if !defined(...) && !defined(...) && ...'. This also avoids
4475 the growing number of special cases it was previously handling.
4478 *) Make all configuration macros available for application by making
4479 sure they are available in opensslconf.h, by giving them names starting
4480 with "OPENSSL_" to avoid conflicts with other packages and by making
4481 sure e_os2.h will cover all platform-specific cases together with
4483 Additionally, it is now possible to define configuration/platform-
4484 specific names (called "system identities"). In the C code, these
4485 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4486 macro with the name beginning with "OPENSSL_SYS_", which is determined
4487 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4491 *) New option -set_serial to 'req' and 'x509' this allows the serial
4492 number to use to be specified on the command line. Previously self
4493 signed certificates were hard coded with serial number 0 and the
4494 CA options of 'x509' had to use a serial number in a file which was
4498 *) New options to 'ca' utility to support V2 CRL entry extensions.
4499 Currently CRL reason, invalidity date and hold instruction are
4500 supported. Add new CRL extensions to V3 code and some new objects.
4503 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4504 disable standard block padding (aka PKCS#5 padding) in the EVP
4505 API, which was previously mandatory. This means that the data is
4506 not padded in any way and so the total length much be a multiple
4507 of the block size, otherwise an error occurs.
4510 *) Initial (incomplete) OCSP SSL support.
4513 *) New function OCSP_parse_url(). This splits up a URL into its host,
4514 port and path components: primarily to parse OCSP URLs. New -url
4515 option to ocsp utility.
4518 *) New nonce behavior. The return value of OCSP_check_nonce() now
4519 reflects the various checks performed. Applications can decide
4520 whether to tolerate certain situations such as an absent nonce
4521 in a response when one was present in a request: the ocsp application
4522 just prints out a warning. New function OCSP_add1_basic_nonce()
4523 this is to allow responders to include a nonce in a response even if
4524 the request is nonce-less.
4527 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4528 skipped when using openssl x509 multiple times on a single input file,
4529 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4532 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4533 set string type: to handle setting ASN1_TIME structures. Fix ca
4534 utility to correctly initialize revocation date of CRLs.
4537 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4538 the clients preferred ciphersuites and rather use its own preferences.
4539 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4540 Internet Explorer by ensuring unchanged hash method during stepup.
4541 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4544 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4545 to aes and add a new 'exist' option to print out symbols that don't
4549 *) Additional options to ocsp utility to allow flags to be set and
4550 additional certificates supplied.
4553 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4554 OCSP client a number of certificate to only verify the response
4558 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4559 handle the new API. Currently only ECB, CBC modes supported. Add new
4562 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4563 Encryption Standard (AES) Ciphersuites for Transport Layer
4564 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4565 not enabled by default and were not part of the "ALL" ciphersuite
4566 alias because they were not yet official; they could be
4567 explicitly requested by specifying the "AESdraft" ciphersuite
4568 group alias. In the final release of OpenSSL 0.9.7, the group
4569 alias is called "AES" and is part of "ALL".)
4570 [Ben Laurie, Steve Henson, Bodo Moeller]
4572 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4573 request to response.
4576 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4577 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4578 extract information from a certificate request. OCSP_response_create()
4579 creates a response and optionally adds a basic response structure.
4580 OCSP_basic_add1_status() adds a complete single response to a basic
4581 response and returns the OCSP_SINGLERESP structure just added (to allow
4582 extensions to be included for example). OCSP_basic_add1_cert() adds a
4583 certificate to a basic response and OCSP_basic_sign() signs a basic
4584 response with various flags. New helper functions ASN1_TIME_check()
4585 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4586 (converts ASN1_TIME to GeneralizedTime).
4589 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4590 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4591 structure from a certificate. X509_pubkey_digest() digests the public_key
4592 contents: this is used in various key identifiers.
4595 *) Make sk_sort() tolerate a NULL argument.
4596 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4598 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4599 passed by the function are trusted implicitly. If any of them signed the
4600 response then it is assumed to be valid and is not verified.
4603 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4604 to data. This was previously part of the PKCS7 ASN1 code. This
4605 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4606 [Steve Henson, reported by Kenneth R. Robinette
4607 <support@securenetterm.com>]
4609 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4610 routines: without these tracing memory leaks is very painful.
4611 Fix leaks in PKCS12 and PKCS7 routines.
4614 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4615 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4616 effectively meant GeneralizedTime would never be used. Now it
4617 is initialised to -1 but X509_time_adj() now has to check the value
4618 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4619 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4620 [Steve Henson, reported by Kenneth R. Robinette
4621 <support@securenetterm.com>]
4623 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4624 result in a zero length in the ASN1_INTEGER structure which was
4625 not consistent with the structure when d2i_ASN1_INTEGER() was used
4626 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4627 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4628 where it did not print out a minus for negative ASN1_INTEGER.
4631 *) Add summary printout to ocsp utility. The various functions which
4632 convert status values to strings have been renamed to:
4633 OCSP_response_status_str(), OCSP_cert_status_str() and
4634 OCSP_crl_reason_str() and are no longer static. New options
4635 to verify nonce values and to disable verification. OCSP response
4636 printout format cleaned up.
4639 *) Add additional OCSP certificate checks. These are those specified
4640 in RFC2560. This consists of two separate checks: the CA of the
4641 certificate being checked must either be the OCSP signer certificate
4642 or the issuer of the OCSP signer certificate. In the latter case the
4643 OCSP signer certificate must contain the OCSP signing extended key
4644 usage. This check is performed by attempting to match the OCSP
4645 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4646 in the OCSP_CERTID structures of the response.
4649 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4650 and related routines. This uses the standard OpenSSL certificate
4651 verify routines to perform initial checks (just CA validity) and
4652 to obtain the certificate chain. Then additional checks will be
4653 performed on the chain. Currently the root CA is checked to see
4654 if it is explicitly trusted for OCSP signing. This is used to set
4655 a root CA as a global signing root: that is any certificate that
4656 chains to that CA is an acceptable OCSP signing certificate.
4659 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4660 extensions from a separate configuration file.
4661 As when reading extensions from the main configuration file,
4662 the '-extensions ...' option may be used for specifying the
4664 [Massimiliano Pala <madwolf@comune.modena.it>]
4666 *) New OCSP utility. Allows OCSP requests to be generated or
4667 read. The request can be sent to a responder and the output
4668 parsed, outputed or printed in text form. Not complete yet:
4669 still needs to check the OCSP response validity.
4672 *) New subcommands for 'openssl ca':
4673 'openssl ca -status <serial>' prints the status of the cert with
4674 the given serial number (according to the index file).
4675 'openssl ca -updatedb' updates the expiry status of certificates
4677 [Massimiliano Pala <madwolf@comune.modena.it>]
4679 *) New '-newreq-nodes' command option to CA.pl. This is like
4680 '-newreq', but calls 'openssl req' with the '-nodes' option
4681 so that the resulting key is not encrypted.
4682 [Damien Miller <djm@mindrot.org>]
4684 *) New configuration for the GNU Hurd.
4685 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4687 *) Initial code to implement OCSP basic response verify. This
4688 is currently incomplete. Currently just finds the signer's
4689 certificate and verifies the signature on the response.
4692 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4693 value of OPENSSLDIR. This is available via the new '-d' option
4694 to 'openssl version', and is also included in 'openssl version -a'.
4697 *) Allowing defining memory allocation callbacks that will be given
4698 file name and line number information in additional arguments
4699 (a const char* and an int). The basic functionality remains, as
4700 well as the original possibility to just replace malloc(),
4701 realloc() and free() by functions that do not know about these
4702 additional arguments. To register and find out the current
4703 settings for extended allocation functions, the following
4704 functions are provided:
4706 CRYPTO_set_mem_ex_functions
4707 CRYPTO_set_locked_mem_ex_functions
4708 CRYPTO_get_mem_ex_functions
4709 CRYPTO_get_locked_mem_ex_functions
4711 These work the same way as CRYPTO_set_mem_functions and friends.
4712 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4713 extended allocation function is enabled.
4714 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4715 a conventional allocation function is enabled.
4716 [Richard Levitte, Bodo Moeller]
4718 *) Finish off removing the remaining LHASH function pointer casts.
4719 There should no longer be any prototype-casting required when using
4720 the LHASH abstraction, and any casts that remain are "bugs". See
4721 the callback types and macros at the head of lhash.h for details
4722 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4725 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4726 If /dev/[u]random devices are not available or do not return enough
4727 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4729 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4730 /etc/entropy will be queried once each in this sequence, quering stops
4731 when enough entropy was collected without querying more sockets.
4734 *) Change the Unix RAND_poll() variant to be able to poll several
4735 random devices, as specified by DEVRANDOM, until a sufficient amount
4736 of data has been collected. We spend at most 10 ms on each file
4737 (select timeout) and read in non-blocking mode. DEVRANDOM now
4738 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4739 (previously it was just the string "/dev/urandom"), so on typical
4740 platforms the 10 ms delay will never occur.
4741 Also separate out the Unix variant to its own file, rand_unix.c.
4742 For VMS, there's a currently-empty rand_vms.c.
4745 *) Move OCSP client related routines to ocsp_cl.c. These
4746 provide utility functions which an application needing
4747 to issue a request to an OCSP responder and analyse the
4748 response will typically need: as opposed to those which an
4749 OCSP responder itself would need which will be added later.
4751 OCSP_request_sign() signs an OCSP request with an API similar
4752 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4753 response. OCSP_response_get1_basic() extracts basic response
4754 from response. OCSP_resp_find_status(): finds and extracts status
4755 information from an OCSP_CERTID structure (which will be created
4756 when the request structure is built). These are built from lower
4757 level functions which work on OCSP_SINGLERESP structures but
4758 wont normally be used unless the application wishes to examine
4759 extensions in the OCSP response for example.
4761 Replace nonce routines with a pair of functions.
4762 OCSP_request_add1_nonce() adds a nonce value and optionally
4763 generates a random value. OCSP_check_nonce() checks the
4764 validity of the nonce in an OCSP response.
4767 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4768 This doesn't copy the supplied OCSP_CERTID and avoids the
4769 need to free up the newly created id. Change return type
4770 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4771 This can then be used to add extensions to the request.
4772 Deleted OCSP_request_new(), since most of its functionality
4773 is now in OCSP_REQUEST_new() (and the case insensitive name
4774 clash) apart from the ability to set the request name which
4775 will be added elsewhere.
4778 *) Update OCSP API. Remove obsolete extensions argument from
4779 various functions. Extensions are now handled using the new
4780 OCSP extension code. New simple OCSP HTTP function which
4781 can be used to send requests and parse the response.
4784 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4785 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4786 uses the special reorder version of SET OF to sort the attributes
4787 and reorder them to match the encoded order. This resolves a long
4788 standing problem: a verify on a PKCS7 structure just after signing
4789 it used to fail because the attribute order did not match the
4790 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4791 it uses the received order. This is necessary to tolerate some broken
4792 software that does not order SET OF. This is handled by encoding
4793 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4794 to produce the required SET OF.
4797 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4798 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4799 files to get correct declarations of the ASN.1 item variables.
4802 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4803 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4804 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4805 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4806 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4807 ASN1_ITEM and no wrapper functions.
4810 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4811 replace the old function pointer based I/O routines. Change most of
4812 the *_d2i_bio() and *_d2i_fp() functions to use these.
4815 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4816 lines, recognice more "algorithms" that can be deselected, and make
4817 it complain about algorithm deselection that isn't recognised.
4820 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4821 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4822 to use new functions. Add NO_ASN1_OLD which can be set to remove
4823 some old style ASN1 functions: this can be used to determine if old
4824 code will still work when these eventually go away.
4827 *) New extension functions for OCSP structures, these follow the
4828 same conventions as certificates and CRLs.
4831 *) New function X509V3_add1_i2d(). This automatically encodes and
4832 adds an extension. Its behaviour can be customised with various
4833 flags to append, replace or delete. Various wrappers added for
4834 certifcates and CRLs.
4837 *) Fix to avoid calling the underlying ASN1 print routine when
4838 an extension cannot be parsed. Correct a typo in the
4839 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4842 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4843 entries for variables.
4846 *) Add functionality to apps/openssl.c for detecting locking
4847 problems: As the program is single-threaded, all we have
4848 to do is register a locking callback using an array for
4849 storing which locks are currently held by the program.
4852 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4853 SSL_get_ex_data_X509_STORE_idx(), which is used in
4854 ssl_verify_cert_chain() and thus can be called at any time
4855 during TLS/SSL handshakes so that thread-safety is essential.
4856 Unfortunately, the ex_data design is not at all suited
4857 for multi-threaded use, so it probably should be abolished.
4860 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4861 [Broadcom, tweaked and integrated by Geoff Thorpe]
4863 *) Move common extension printing code to new function
4864 X509V3_print_extensions(). Reorganise OCSP print routines and
4865 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4868 *) New function X509_signature_print() to remove duplication in some
4872 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4873 set (this was treated exactly the same as SET OF previously). This
4874 is used to reorder the STACK representing the structure to match the
4875 encoding. This will be used to get round a problem where a PKCS7
4876 structure which was signed could not be verified because the STACK
4877 order did not reflect the encoded order.
4880 *) Reimplement the OCSP ASN1 module using the new code.
4883 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4884 for its ASN1 operations. The old style function pointers still exist
4885 for now but they will eventually go away.
4888 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4889 completely replaces the old ASN1 functionality with a table driven
4890 encoder and decoder which interprets an ASN1_ITEM structure describing
4891 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4892 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4893 has also been converted to the new form.
4896 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4897 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4898 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4899 for negative moduli.
4902 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4903 of not touching the result's sign bit.
4906 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4910 *) Changed the LHASH code to use prototypes for callbacks, and created
4911 macros to declare and implement thin (optionally static) functions
4912 that provide type-safety and avoid function pointer casting for the
4913 type-specific callbacks.
4916 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4918 [Veers Staats <staatsvr@asc.hpc.mil>,
4919 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4921 *) Reformat the FAQ so the different questions and answers can be divided
4922 in sections depending on the subject.
4925 *) Have the zlib compression code load ZLIB.DLL dynamically under
4929 *) New function BN_mod_sqrt for computing square roots modulo a prime
4930 (using the probabilistic Tonelli-Shanks algorithm unless
4931 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4932 be handled deterministically).
4933 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4935 *) Make BN_mod_inverse faster by explicitly handling small quotients
4936 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4937 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4940 *) New function BN_kronecker.
4943 *) Fix BN_gcd so that it works on negative inputs; the result is
4944 positive unless both parameters are zero.
4945 Previously something reasonably close to an infinite loop was
4946 possible because numbers could be growing instead of shrinking
4947 in the implementation of Euclid's algorithm.
4950 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4951 sign of the number in question.
4953 Fix BN_is_word(a,w) to work correctly for w == 0.
4955 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4956 because its test if the absolute value of 'a' equals 'w'.
4957 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4958 it exists mostly for use in the implementations of BN_is_zero(),
4959 BN_is_one(), and BN_is_word().
4962 *) New function BN_swap.
4965 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4966 the exponentiation functions are more likely to produce reasonable
4967 results on negative inputs.
4970 *) Change BN_mod_mul so that the result is always non-negative.
4971 Previously, it could be negative if one of the factors was negative;
4972 I don't think anyone really wanted that behaviour.
4975 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4976 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4977 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4978 and add new functions:
4987 BN_mod_lshift1_quick
4991 These functions always generate non-negative results.
4993 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4994 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4996 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4997 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4998 be reduced modulo m.
4999 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5002 The following entry accidentily appeared in the CHANGES file
5003 distributed with OpenSSL 0.9.7. The modifications described in
5004 it do *not* apply to OpenSSL 0.9.7.
5006 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5007 was actually never needed) and in BN_mul(). The removal in BN_mul()
5008 required a small change in bn_mul_part_recursive() and the addition
5009 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5010 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5011 bn_sub_words() and bn_add_words() except they take arrays with
5016 *) In 'openssl passwd', verify passwords read from the terminal
5017 unless the '-salt' option is used (which usually means that
5018 verification would just waste user's time since the resulting
5019 hash is going to be compared with some given password hash)
5020 or the new '-noverify' option is used.
5022 This is an incompatible change, but it does not affect
5023 non-interactive use of 'openssl passwd' (passwords on the command
5024 line, '-stdin' option, '-in ...' option) and thus should not
5028 *) Remove all references to RSAref, since there's no more need for it.
5031 *) Make DSO load along a path given through an environment variable
5032 (SHLIB_PATH) with shl_load().
5035 *) Constify the ENGINE code as a result of BIGNUM constification.
5036 Also constify the RSA code and most things related to it. In a
5037 few places, most notable in the depth of the ASN.1 code, ugly
5038 casts back to non-const were required (to be solved at a later
5042 *) Make it so the openssl application has all engines loaded by default.
5045 *) Constify the BIGNUM routines a little more.
5048 *) Add the following functions:
5050 ENGINE_load_cswift()
5052 ENGINE_load_atalla()
5054 ENGINE_load_builtin_engines()
5056 That way, an application can itself choose if external engines that
5057 are built-in in OpenSSL shall ever be used or not. The benefit is
5058 that applications won't have to be linked with libdl or other dso
5059 libraries unless it's really needed.
5061 Changed 'openssl engine' to load all engines on demand.
5062 Changed the engine header files to avoid the duplication of some
5063 declarations (they differed!).
5066 *) 'openssl engine' can now list capabilities.
5069 *) Better error reporting in 'openssl engine'.
5072 *) Never call load_dh_param(NULL) in s_server.
5075 *) Add engine application. It can currently list engines by name and
5076 identity, and test if they are actually available.
5079 *) Improve RPM specification file by forcing symbolic linking and making
5080 sure the installed documentation is also owned by root.root.
5081 [Damien Miller <djm@mindrot.org>]
5083 *) Give the OpenSSL applications more possibilities to make use of
5084 keys (public as well as private) handled by engines.
5087 *) Add OCSP code that comes from CertCo.
5090 *) Add VMS support for the Rijndael code.
5093 *) Added untested support for Nuron crypto accelerator.
5096 *) Add support for external cryptographic devices. This code was
5097 previously distributed separately as the "engine" branch.
5098 [Geoff Thorpe, Richard Levitte]
5100 *) Rework the filename-translation in the DSO code. It is now possible to
5101 have far greater control over how a "name" is turned into a filename
5102 depending on the operating environment and any oddities about the
5103 different shared library filenames on each system.
5106 *) Support threads on FreeBSD-elf in Configure.
5109 *) Fix for SHA1 assembly problem with MASM: it produces
5110 warnings about corrupt line number information when assembling
5111 with debugging information. This is caused by the overlapping
5113 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5116 NCONF_get_number() has no error checking at all. As a replacement,
5117 NCONF_get_number_e() is defined (_e for "error checking") and is
5118 promoted strongly. The old NCONF_get_number is kept around for
5119 binary backward compatibility.
5120 Make it possible for methods to load from something other than a BIO,
5121 by providing a function pointer that is given a name instead of a BIO.
5122 For example, this could be used to load configuration data from an
5126 *) Fix for non blocking accept BIOs. Added new I/O special reason
5127 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5128 with non blocking I/O was not possible because no retry code was
5129 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5133 *) Added the beginnings of Rijndael support.
5136 *) Fix for bug in DirectoryString mask setting. Add support for
5137 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5138 to allow certificate printing to more controllable, additional
5139 'certopt' option to 'x509' to allow new printing options to be
5143 *) Clean old EAY MD5 hack from e_os.h.
5146 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5148 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5149 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5150 [Joe Orton, Steve Henson]
5152 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5154 *) Fix additional bug revealed by the NISCC test suite:
5156 Stop bug triggering large recursion when presented with
5157 certain ASN.1 tags (CVE-2003-0851)
5160 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5162 *) Fix various bugs revealed by running the NISCC test suite:
5164 Stop out of bounds reads in the ASN1 code when presented with
5165 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5167 If verify callback ignores invalid public key errors don't try to check
5168 certificate signature with the NULL public key.
5172 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5173 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5177 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5178 extra data after the compression methods not only for TLS 1.0
5179 but also for SSL 3.0 (as required by the specification).
5180 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5182 *) Change X509_certificate_type() to mark the key as exported/exportable
5183 when it's 512 *bits* long, not 512 bytes.
5186 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5188 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5189 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5190 a protocol version number mismatch like a decryption error
5191 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5194 *) Turn on RSA blinding by default in the default implementation
5195 to avoid a timing attack. Applications that don't want it can call
5196 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5197 They would be ill-advised to do so in most cases.
5198 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5200 *) Change RSA blinding code so that it works when the PRNG is not
5201 seeded (in this case, the secret RSA exponent is abused as
5202 an unpredictable seed -- if it is not unpredictable, there
5203 is no point in blinding anyway). Make RSA blinding thread-safe
5204 by remembering the creator's thread ID in rsa->blinding and
5205 having all other threads use local one-time blinding factors
5206 (this requires more computation than sharing rsa->blinding, but
5207 avoids excessive locking; and if an RSA object is not shared
5208 between threads, blinding will still be very fast).
5211 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5213 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5214 via timing by performing a MAC computation even if incorrrect
5215 block cipher padding has been found. This is a countermeasure
5216 against active attacks where the attacker has to distinguish
5217 between bad padding and a MAC verification error. (CVE-2003-0078)
5219 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5220 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5221 Martin Vuagnoux (EPFL, Ilion)]
5223 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5225 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5226 memory from it's contents. This is done with a counter that will
5227 place alternating values in each byte. This can be used to solve
5228 two issues: 1) the removal of calls to memset() by highly optimizing
5229 compilers, and 2) cleansing with other values than 0, since those can
5230 be read through on certain media, for example a swap space on disk.
5233 *) Bugfix: client side session caching did not work with external caching,
5234 because the session->cipher setting was not restored when reloading
5235 from the external cache. This problem was masked, when
5236 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5237 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5240 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5241 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5242 [Zeev Lieber <zeev-l@yahoo.com>]
5244 *) Undo an undocumented change introduced in 0.9.6e which caused
5245 repeated calls to OpenSSL_add_all_ciphers() and
5246 OpenSSL_add_all_digests() to be ignored, even after calling
5250 *) Change the default configuration reader to deal with last line not
5251 being properly terminated.
5254 *) Change X509_NAME_cmp() so it applies the special rules on handling
5255 DN values that are of type PrintableString, as well as RDNs of type
5256 emailAddress where the value has the type ia5String.
5257 [stefank@valicert.com via Richard Levitte]
5259 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5260 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5261 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5262 the bitwise-OR of the two for use by the majority of applications
5263 wanting this behaviour, and update the docs. The documented
5264 behaviour and actual behaviour were inconsistent and had been
5265 changing anyway, so this is more a bug-fix than a behavioural
5267 [Geoff Thorpe, diagnosed by Nadav Har'El]
5269 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5270 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5273 *) Fix initialization code race conditions in
5274 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5275 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5276 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5277 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5278 ssl2_get_cipher_by_char(),
5279 ssl3_get_cipher_by_char().
5280 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5282 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5283 the cached sessions are flushed, as the remove_cb() might use ex_data
5284 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5285 (see [openssl.org #212]).
5286 [Geoff Thorpe, Lutz Jaenicke]
5288 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5289 length, instead of the encoding length to d2i_ASN1_OBJECT.
5292 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5294 *) [In 0.9.6g-engine release:]
5295 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5296 [Lynn Gazis <lgazis@rainbow.com>]
5298 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5300 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5301 and get fix the header length calculation.
5302 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5303 Alon Kantor <alonk@checkpoint.com> (and others),
5306 *) Use proper error handling instead of 'assertions' in buffer
5307 overflow checks added in 0.9.6e. This prevents DoS (the
5308 assertions could call abort()).
5309 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5311 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
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
5317 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5319 *) Fix cipher selection routines: ciphers without encryption had no flags
5320 for the cipher strength set and where therefore not handled correctly
5321 by the selection routines (PR #130).
5324 *) Fix EVP_dsa_sha macro.
5328 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5329 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5330 that was added in OpenSSL 0.9.6d.
5332 As the countermeasure turned out to be incompatible with some
5333 broken SSL implementations, the new option is part of SSL_OP_ALL.
5334 SSL_OP_ALL is usually employed when compatibility with weird SSL
5335 implementations is desired (e.g. '-bugs' option to 's_client' and
5336 's_server'), so the new option is automatically set in many
5340 *) Changes in security patch:
5342 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5343 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5344 Air Force Materiel Command, USAF, under agreement number
5347 *) Add various sanity checks to asn1_get_length() to reject
5348 the ASN1 length bytes if they exceed sizeof(long), will appear
5349 negative or the content length exceeds the length of the
5350 supplied buffer. (CVE-2002-0659)
5351 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5353 *) Assertions for various potential buffer overflows, not known to
5355 [Ben Laurie (CHATS)]
5357 *) Various temporary buffers to hold ASCII versions of integers were
5358 too small for 64 bit platforms. (CVE-2002-0655)
5359 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5361 *) Remote buffer overflow in SSL3 protocol - an attacker could
5362 supply an oversized session ID to a client. (CVE-2002-0656)
5363 [Ben Laurie (CHATS)]
5365 *) Remote buffer overflow in SSL2 protocol - an attacker could
5366 supply an oversized client master key. (CVE-2002-0656)
5367 [Ben Laurie (CHATS)]
5369 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5371 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5372 encoded as NULL) with id-dsa-with-sha1.
5373 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5375 *) Check various X509_...() return values in apps/req.c.
5376 [Nils Larsch <nla@trustcenter.de>]
5378 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5379 an end-of-file condition would erronously be flagged, when the CRLF
5380 was just at the end of a processed block. The bug was discovered when
5381 processing data through a buffering memory BIO handing the data to a
5382 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5383 <ptsekov@syntrex.com> and Nedelcho Stanev.
5386 *) Implement a countermeasure against a vulnerability recently found
5387 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5388 before application data chunks to avoid the use of known IVs
5389 with data potentially chosen by the attacker.
5392 *) Fix length checks in ssl3_get_client_hello().
5395 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5396 to prevent ssl3_read_internal() from incorrectly assuming that
5397 ssl3_read_bytes() found application data while handshake
5398 processing was enabled when in fact s->s3->in_read_app_data was
5399 merely automatically cleared during the initial handshake.
5400 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5402 *) Fix object definitions for Private and Enterprise: they were not
5403 recognized in their shortname (=lowercase) representation. Extend
5404 obj_dat.pl to issue an error when using undefined keywords instead
5405 of silently ignoring the problem (Svenning Sorensen
5406 <sss@sss.dnsalias.net>).
5409 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5410 generators, i.e. generators other than 2 and 5. (Previously, the
5411 code did not properly initialise the 'add' and 'rem' values to
5412 BN_generate_prime().)
5414 In the new general case, we do not insist that 'generator' is
5415 actually a primitive root: This requirement is rather pointless;
5416 a generator of the order-q subgroup is just as good, if not
5420 *) Map new X509 verification errors to alerts. Discovered and submitted by
5421 Tom Wu <tom@arcot.com>.
5424 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5425 returning non-zero before the data has been completely received
5426 when using non-blocking I/O.
5427 [Bodo Moeller; problem pointed out by John Hughes]
5429 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5430 [Ben Laurie, Lutz Jaenicke]
5432 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5433 Yoram Zahavi <YoramZ@gilian.com>).
5436 *) Add information about CygWin 1.3 and on, and preserve proper
5437 configuration for the versions before that.
5438 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5440 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5441 check whether we deal with a copy of a session and do not delete from
5442 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5443 <izhar@checkpoint.com>.
5446 *) Do not store session data into the internal session cache, if it
5447 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5448 flag is set). Proposed by Aslam <aslam@funk.com>.
5451 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5455 *) [In 0.9.6d-engine release:]
5456 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5457 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5459 *) Add the configuration target linux-s390x.
5460 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5462 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5463 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5464 variable as an indication that a ClientHello message has been
5465 received. As the flag value will be lost between multiple
5466 invocations of ssl3_accept when using non-blocking I/O, the
5467 function may not be aware that a handshake has actually taken
5468 place, thus preventing a new session from being added to the
5471 To avoid this problem, we now set s->new_session to 2 instead of
5472 using a local variable.
5473 [Lutz Jaenicke, Bodo Moeller]
5475 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5476 if the SSL_R_LENGTH_MISMATCH error is detected.
5477 [Geoff Thorpe, Bodo Moeller]
5479 *) New 'shared_ldflag' column in Configure platform table.
5482 *) Fix EVP_CIPHER_mode macro.
5483 ["Dan S. Camper" <dan@bti.net>]
5485 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5486 type, we must throw them away by setting rr->length to 0.
5487 [D P Chang <dpc@qualys.com>]
5489 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5491 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5492 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5493 worked incorrectly for those cases where range = 10..._2 and
5494 3*range is two bits longer than range.)
5497 *) Only add signing time to PKCS7 structures if it is not already
5501 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5502 OBJ_ld_ce should be OBJ_id_ce.
5503 Also some ip-pda OIDs in crypto/objects/objects.txt were
5504 incorrect (cf. RFC 3039).
5505 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5507 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5508 returns early because it has nothing to do.
5509 [Andy Schneider <andy.schneider@bjss.co.uk>]
5511 *) [In 0.9.6c-engine release:]
5512 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5513 [Andy Schneider <andy.schneider@bjss.co.uk>]
5515 *) [In 0.9.6c-engine release:]
5516 Add support for Cryptographic Appliance's keyserver technology.
5517 (Use engine 'keyclient')
5518 [Cryptographic Appliances and Geoff Thorpe]
5520 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5521 is called via tools/c89.sh because arguments have to be
5522 rearranged (all '-L' options must appear before the first object
5524 [Richard Shapiro <rshapiro@abinitio.com>]
5526 *) [In 0.9.6c-engine release:]
5527 Add support for Broadcom crypto accelerator cards, backported
5529 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5531 *) [In 0.9.6c-engine release:]
5532 Add support for SureWare crypto accelerator cards from
5533 Baltimore Technologies. (Use engine 'sureware')
5534 [Baltimore Technologies and Mark Cox]
5536 *) [In 0.9.6c-engine release:]
5537 Add support for crypto accelerator cards from Accelerated
5538 Encryption Processing, www.aep.ie. (Use engine 'aep')
5539 [AEP Inc. and Mark Cox]
5541 *) Add a configuration entry for gcc on UnixWare.
5542 [Gary Benson <gbenson@redhat.com>]
5544 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5545 messages are stored in a single piece (fixed-length part and
5546 variable-length part combined) and fix various bugs found on the way.
5549 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5550 instead. BIO_gethostbyname() does not know what timeouts are
5551 appropriate, so entries would stay in cache even when they have
5553 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5555 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5556 faced with a pathologically small ClientHello fragment that does
5557 not contain client_version: Instead of aborting with an error,
5558 simply choose the highest available protocol version (i.e.,
5559 TLS 1.0 unless it is disabled). In practice, ClientHello
5560 messages are never sent like this, but this change gives us
5561 strictly correct behaviour at least for TLS.
5564 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5565 never resets s->method to s->ctx->method when called from within
5566 one of the SSL handshake functions.
5567 [Bodo Moeller; problem pointed out by Niko Baric]
5569 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5570 (sent using the client's version number) if client_version is
5571 smaller than the protocol version in use. Also change
5572 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5573 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5574 the client will at least see that alert.
5577 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5581 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5582 client receives HelloRequest while in a handshake.
5583 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5585 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5586 should end in 'break', not 'goto end' which circuments various
5587 cleanups done in state SSL_ST_OK. But session related stuff
5588 must be disabled for SSL_ST_OK in the case that we just sent a
5591 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5592 before just sending a HelloRequest.
5593 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5595 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5596 reveal whether illegal block cipher padding was found or a MAC
5597 verification error occured. (Neither SSLerr() codes nor alerts
5598 are directly visible to potential attackers, but the information
5599 may leak via logfiles.)
5601 Similar changes are not required for the SSL 2.0 implementation
5602 because the number of padding bytes is sent in clear for SSL 2.0,
5603 and the extra bytes are just ignored. However ssl/s2_pkt.c
5604 failed to verify that the purported number of padding bytes is in
5608 *) Add OpenUNIX-8 support including shared libraries
5609 (Boyd Lynn Gerber <gerberb@zenez.com>).
5612 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5613 'wristwatch attack' using huge encoding parameters (cf.
5614 James H. Manger's CRYPTO 2001 paper). Note that the
5615 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5616 encoding parameters and hence was not vulnerable.
5619 *) BN_sqr() bug fix.
5620 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5622 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5623 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5624 followed by modular reduction.
5625 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5627 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5628 equivalent based on BN_pseudo_rand() instead of BN_rand().
5631 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5632 This function was broken, as the check for a new client hello message
5633 to handle SGC did not allow these large messages.
5634 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5637 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5640 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5641 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5644 *) Rework the configuration and shared library support for Tru64 Unix.
5645 The configuration part makes use of modern compiler features and
5646 still retains old compiler behavior for those that run older versions
5647 of the OS. The shared library support part includes a variant that
5648 uses the RPATH feature, and is available through the special
5649 configuration target "alpha-cc-rpath", which will never be selected
5651 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5653 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5654 with the same message size as in ssl3_get_certificate_request().
5655 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5656 messages might inadvertently be reject as too long.
5657 [Petr Lampa <lampa@fee.vutbr.cz>]
5659 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5662 *) Modified SSL library such that the verify_callback that has been set
5663 specificly for an SSL object with SSL_set_verify() is actually being
5664 used. Before the change, a verify_callback set with this function was
5665 ignored and the verify_callback() set in the SSL_CTX at the time of
5666 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5667 to allow the necessary settings.
5670 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5671 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5672 done automatically (in contradiction to the requirements of the C
5673 standard). This made problems when used from OpenSSH.
5676 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5677 dh->length and always used
5679 BN_rand_range(priv_key, dh->p).
5681 BN_rand_range() is not necessary for Diffie-Hellman, and this
5682 specific range makes Diffie-Hellman unnecessarily inefficient if
5683 dh->length (recommended exponent length) is much smaller than the
5684 length of dh->p. We could use BN_rand_range() if the order of
5685 the subgroup was stored in the DH structure, but we only have
5690 BN_rand(priv_key, l, ...)
5692 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5698 RSA_eay_public_encrypt
5699 RSA_eay_private_decrypt
5700 RSA_eay_private_encrypt (signing)
5701 RSA_eay_public_decrypt (signature verification)
5703 (default implementations for RSA_public_encrypt,
5704 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5705 always reject numbers >= n.
5708 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5709 to synchronize access to 'locking_thread'. This is necessary on
5710 systems where access to 'locking_thread' (an 'unsigned long'
5711 variable) is not atomic.
5714 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5715 *before* setting the 'crypto_lock_rand' flag. The previous code had
5716 a race condition if 0 is a valid thread ID.
5717 [Travis Vitek <vitek@roguewave.com>]
5719 *) Add support for shared libraries under Irix.
5720 [Albert Chin-A-Young <china@thewrittenword.com>]
5722 *) Add configuration option to build on Linux on both big-endian and
5724 [Ralf Baechle <ralf@uni-koblenz.de>]
5726 *) Add the possibility to create shared libraries on HP-UX.
5729 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5731 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5732 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5733 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5734 PRNG state recovery was possible based on the output of
5735 one PRNG request appropriately sized to gain knowledge on
5736 'md' followed by enough consecutive 1-byte PRNG requests
5737 to traverse all of 'state'.
5739 1. When updating 'md_local' (the current thread's copy of 'md')
5740 during PRNG output generation, hash all of the previous
5741 'md_local' value, not just the half used for PRNG output.
5743 2. Make the number of bytes from 'state' included into the hash
5744 independent from the number of PRNG bytes requested.
5746 The first measure alone would be sufficient to avoid
5747 Markku-Juhani's attack. (Actually it had never occurred
5748 to me that the half of 'md_local' used for chaining was the
5749 half from which PRNG output bytes were taken -- I had always
5750 assumed that the secret half would be used.) The second
5751 measure makes sure that additional data from 'state' is never
5752 mixed into 'md_local' in small portions; this heuristically
5753 further strengthens the PRNG.
5756 *) Fix crypto/bn/asm/mips3.s.
5759 *) When only the key is given to "enc", the IV is undefined. Print out
5760 an error message in this case.
5763 *) Handle special case when X509_NAME is empty in X509 printing routines.
5766 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5767 positive and less than q.
5770 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5771 used: it isn't thread safe and the add_lock_callback should handle
5773 [Paul Rose <Paul.Rose@bridge.com>]
5775 *) Verify that incoming data obeys the block size in
5776 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5780 [Ulf Möller, Bodo Möller]
5782 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5783 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5784 when fixing the server behaviour for backwards-compatible 'client
5785 hello' messages. (Note that the attack is impractical against
5786 SSL 3.0 and TLS 1.0 anyway because length and version checking
5787 means that the probability of guessing a valid ciphertext is
5788 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5791 Before 0.9.5, the countermeasure (hide the error by generating a
5792 random 'decryption result') did not work properly because
5793 ERR_clear_error() was missing, meaning that SSL_get_error() would
5794 detect the supposedly ignored error.
5796 Both problems are now fixed.
5799 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5800 (previously it was 1024).
5803 *) Fix for compatibility mode trust settings: ignore trust settings
5804 unless some valid trust or reject settings are present.
5807 *) Fix for blowfish EVP: its a variable length cipher.
5810 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5811 parameters in DSA public key structures and return an error in the
5812 DSA routines if parameters are absent.
5815 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5816 in the current directory if neither $RANDFILE nor $HOME was set.
5817 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5818 caused some confusion to Windows users who haven't defined $HOME.
5819 Thus RAND_file_name() is changed again: e_os.h can define a
5820 DEFAULT_HOME, which will be used if $HOME is not set.
5821 For Windows, we use "C:"; on other platforms, we still require
5822 environment variables.
5824 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5825 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5826 having multiple threads call RAND_poll() concurrently.
5829 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5830 combination of a flag and a thread ID variable.
5831 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5832 flag), *other* threads can enter ssleay_add_bytes without obeying
5833 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5834 that they do not hold after the first thread unsets add_do_not_lock).
5837 *) Change bctest again: '-x' expressions are not available in all
5841 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5843 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5844 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5846 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5847 the default extension for executables, if any. Also, make the perl
5848 scripts that use symlink() to test if it really exists and use "cp"
5849 if it doesn't. All this made OpenSSL compilable and installable in
5853 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5854 If SEQUENCE is length is indefinite just set c->slen to the total
5855 amount of data available.
5856 [Steve Henson, reported by shige@FreeBSD.org]
5857 [This change does not apply to 0.9.7.]
5859 *) Change bctest to avoid here-documents inside command substitution
5860 (workaround for FreeBSD /bin/sh bug).
5861 For compatibility with Ultrix, avoid shell functions (introduced
5862 in the bctest version that searches along $PATH).
5865 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5866 with des_encrypt() defined on some operating systems, like Solaris
5870 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5871 On the Importance of Eliminating Errors in Cryptographic
5872 Computations, J. Cryptology 14 (2001) 2, 101-119,
5873 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5876 *) MIPS assembler BIGNUM division bug fix.
5879 *) Disabled incorrect Alpha assembler code.
5882 *) Fix PKCS#7 decode routines so they correctly update the length
5883 after reading an EOC for the EXPLICIT tag.
5885 [This change does not apply to 0.9.7.]
5887 *) Fix bug in PKCS#12 key generation routines. This was triggered
5888 if a 3DES key was generated with a 0 initial byte. Include
5889 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5890 (but broken) behaviour.
5893 *) Enhance bctest to search for a working bc along $PATH and print
5895 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5897 *) Fix memory leaks in err.c: free err_data string if necessary;
5898 don't write to the wrong index in ERR_set_error_data.
5901 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5905 *) Replace rdtsc with _emit statements for VC++ version 5.
5906 [Jeremy Cooper <jeremy@baymoo.org>]
5908 *) Make it possible to reuse SSLv2 sessions.
5911 *) In copy_email() check for >= 0 as a return value for
5912 X509_NAME_get_index_by_NID() since 0 is a valid index.
5913 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5915 *) Avoid coredump with unsupported or invalid public keys by checking if
5916 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5917 PKCS7_verify() fails with non detached data.
5920 *) Don't use getenv in library functions when run as setuid/setgid.
5921 New function OPENSSL_issetugid().
5924 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5925 due to incorrect handling of multi-threading:
5927 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5929 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5931 3. Count how many times MemCheck_off() has been called so that
5932 nested use can be treated correctly. This also avoids
5933 inband-signalling in the previous code (which relied on the
5934 assumption that thread ID 0 is impossible).
5937 *) Add "-rand" option also to s_client and s_server.
5940 *) Fix CPU detection on Irix 6.x.
5941 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5942 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5944 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5947 [This change does not apply to 0.9.7.]
5949 *) Use the cached encoding of an X509_NAME structure rather than
5950 copying it. This is apparently the reason for the libsafe "errors"
5951 but the code is actually correct.
5954 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5955 Bleichenbacher's DSA attack.
5956 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5957 to be set and top=0 forces the highest bit to be set; top=-1 is new
5958 and leaves the highest bit random.
5959 [Ulf Moeller, Bodo Moeller]
5961 *) In the NCONF_...-based implementations for CONF_... queries
5962 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5963 a temporary CONF structure with the data component set to NULL
5964 (which gives segmentation faults in lh_retrieve).
5965 Instead, use NULL for the CONF pointer in CONF_get_string and
5966 CONF_get_number (which may use environment variables) and directly
5967 return NULL from CONF_get_section.
5970 *) Fix potential buffer overrun for EBCDIC.
5973 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5974 keyUsage if basicConstraints absent for a CA.
5977 *) Make SMIME_write_PKCS7() write mail header values with a format that
5978 is more generally accepted (no spaces before the semicolon), since
5979 some programs can't parse those values properly otherwise. Also make
5980 sure BIO's that break lines after each write do not create invalid
5984 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5985 macros previously used would not encode an empty SEQUENCE OF
5986 and break the signature.
5988 [This change does not apply to 0.9.7.]
5990 *) Zero the premaster secret after deriving the master secret in
5994 *) Add some EVP_add_digest_alias registrations (as found in
5995 OpenSSL_add_all_digests()) to SSL_library_init()
5996 aka OpenSSL_add_ssl_algorithms(). This provides improved
5997 compatibility with peers using X.509 certificates
5998 with unconventional AlgorithmIdentifier OIDs.
6001 *) Fix for Irix with NO_ASM.
6002 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6004 *) ./config script fixes.
6005 [Ulf Moeller, Richard Levitte]
6007 *) Fix 'openssl passwd -1'.
6010 *) Change PKCS12_key_gen_asc() so it can cope with non null
6011 terminated strings whose length is passed in the passlen
6012 parameter, for example from PEM callbacks. This was done
6013 by adding an extra length parameter to asc2uni().
6014 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6016 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6017 call failed, free the DSA structure.
6020 *) Fix to uni2asc() to cope with zero length Unicode strings.
6021 These are present in some PKCS#12 files.
6024 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6025 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6026 when writing a 32767 byte record.
6027 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6029 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6030 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6032 (RSA objects have a reference count access to which is protected
6033 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6034 so they are meant to be shared between threads.)
6035 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6036 "Reddie, Steven" <Steven.Reddie@ca.com>]
6038 *) Fix a deadlock in CRYPTO_mem_leaks().
6041 *) Use better test patterns in bntest.
6044 *) rand_win.c fix for Borland C.
6047 *) BN_rshift bugfix for n == 0.
6050 *) Add a 'bctest' script that checks for some known 'bc' bugs
6051 so that 'make test' does not abort just because 'bc' is broken.
6054 *) Store verify_result within SSL_SESSION also for client side to
6055 avoid potential security hole. (Re-used sessions on the client side
6056 always resulted in verify_result==X509_V_OK, not using the original
6057 result of the server certificate verification.)
6060 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6061 SSL3_RT_APPLICATION_DATA, return 0.
6062 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6066 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6067 releases, have been re-implemented by renaming the previous
6068 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6069 and ssl3_read_internal, respectively, and adding 'peek' parameters
6070 to them. The new ssl[23]_{read,peek} functions are calls to
6071 ssl[23]_read_internal with the 'peek' flag set appropriately.
6072 A 'peek' parameter has also been added to ssl3_read_bytes, which
6073 does the actual work for ssl3_read_internal.
6076 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6077 the method-specific "init()" handler. Also clean up ex_data after
6078 calling the method-specific "finish()" handler. Previously, this was
6079 happening the other way round.
6082 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6083 The previous value, 12, was not always sufficient for BN_mod_exp().
6086 *) Make sure that shared libraries get the internal name engine with
6087 the full version number and not just 0. This should mark the
6088 shared libraries as not backward compatible. Of course, this should
6089 be changed again when we can guarantee backward binary compatibility.
6092 *) Fix typo in get_cert_by_subject() in by_dir.c
6093 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6095 *) Rework the system to generate shared libraries:
6097 - Make note of the expected extension for the shared libraries and
6098 if there is a need for symbolic links from for example libcrypto.so.0
6099 to libcrypto.so.0.9.7. There is extended info in Configure for
6102 - Make as few rebuilds of the shared libraries as possible.
6104 - Still avoid linking the OpenSSL programs with the shared libraries.
6106 - When installing, install the shared libraries separately from the
6110 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6112 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6113 and not in SSL_clear because the latter is also used by the
6114 accept/connect functions; previously, the settings made by
6115 SSL_set_read_ahead would be lost during the handshake.
6116 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6118 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6119 Previously, it would create entries for disableed algorithms no
6123 *) Added several new manual pages for SSL_* function.
6126 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6128 *) In ssl23_get_client_hello, generate an error message when faced
6129 with an initial SSL 3.0/TLS record that is too small to contain the
6130 first two bytes of the ClientHello message, i.e. client_version.
6131 (Note that this is a pathologic case that probably has never happened
6132 in real life.) The previous approach was to use the version number
6133 from the record header as a substitute; but our protocol choice
6134 should not depend on that one because it is not authenticated
6135 by the Finished messages.
6138 *) More robust randomness gathering functions for Windows.
6139 [Jeffrey Altman <jaltman@columbia.edu>]
6141 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6142 not set then we don't setup the error code for issuer check errors
6143 to avoid possibly overwriting other errors which the callback does
6144 handle. If an application does set the flag then we assume it knows
6145 what it is doing and can handle the new informational codes
6149 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6150 a general "ANY" type, as such it should be able to decode anything
6151 including tagged types. However it didn't check the class so it would
6152 wrongly interpret tagged types in the same way as their universal
6153 counterpart and unknown types were just rejected. Changed so that the
6154 tagged and unknown types are handled in the same way as a SEQUENCE:
6155 that is the encoding is stored intact. There is also a new type
6156 "V_ASN1_OTHER" which is used when the class is not universal, in this
6157 case we have no idea what the actual type is so we just lump them all
6161 *) On VMS, stdout may very well lead to a file that is written to
6162 in a record-oriented fashion. That means that every write() will
6163 write a separate record, which will be read separately by the
6164 programs trying to read from it. This can be very confusing.
6166 The solution is to put a BIO filter in the way that will buffer
6167 text until a linefeed is reached, and then write everything a
6168 line at a time, so every record written will be an actual line,
6169 not chunks of lines and not (usually doesn't happen, but I've
6170 seen it once) several lines in one record. BIO_f_linebuffer() is
6173 Currently, it's a VMS-only method, because that's where it has
6174 been tested well enough.
6177 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6178 it can return incorrect results.
6179 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6180 but it was in 0.9.6-beta[12].)
6183 *) Disable the check for content being present when verifying detached
6184 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6185 include zero length content when signing messages.
6188 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6189 BIO_ctrl (for BIO pairs).
6192 *) Add DSO method for VMS.
6195 *) Bug fix: Montgomery multiplication could produce results with the
6199 *) Add RPM specification openssl.spec and modify it to build three
6200 packages. The default package contains applications, application
6201 documentation and run-time libraries. The devel package contains
6202 include files, static libraries and function documentation. The
6203 doc package contains the contents of the doc directory. The original
6204 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6207 *) Add a large number of documentation files for many SSL routines.
6208 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6210 *) Add a configuration entry for Sony News 4.
6211 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6213 *) Don't set the two most significant bits to one when generating a
6214 random number < q in the DSA library.
6217 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6218 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6219 the underlying transport is blocking) if a handshake took place.
6220 (The default behaviour is needed by applications such as s_client
6221 and s_server that use select() to determine when to use SSL_read;
6222 but for applications that know in advance when to expect data, it
6223 just makes things more complicated.)
6226 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6230 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6231 work better on such systems.
6232 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6234 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6235 Update PKCS12_parse() so it copies the friendlyName and the
6236 keyid to the certificates aux info.
6239 *) Fix bug in PKCS7_verify() which caused an infinite loop
6240 if there was more than one signature.
6241 [Sven Uszpelkat <su@celocom.de>]
6243 *) Major change in util/mkdef.pl to include extra information
6244 about each symbol, as well as presentig variables as well
6245 as functions. This change means that there's n more need
6246 to rebuild the .num files when some algorithms are excluded.
6249 *) Allow the verify time to be set by an application,
6250 rather than always using the current time.
6253 *) Phase 2 verify code reorganisation. The certificate
6254 verify code now looks up an issuer certificate by a
6255 number of criteria: subject name, authority key id
6256 and key usage. It also verifies self signed certificates
6257 by the same criteria. The main comparison function is
6258 X509_check_issued() which performs these checks.
6260 Lot of changes were necessary in order to support this
6261 without completely rewriting the lookup code.
6263 Authority and subject key identifier are now cached.
6265 The LHASH 'certs' is X509_STORE has now been replaced
6266 by a STACK_OF(X509_OBJECT). This is mainly because an
6267 LHASH can't store or retrieve multiple objects with
6268 the same hash value.
6270 As a result various functions (which were all internal
6271 use only) have changed to handle the new X509_STORE
6272 structure. This will break anything that messed round
6273 with X509_STORE internally.
6275 The functions X509_STORE_add_cert() now checks for an
6276 exact match, rather than just subject name.
6278 The X509_STORE API doesn't directly support the retrieval
6279 of multiple certificates matching a given criteria, however
6280 this can be worked round by performing a lookup first
6281 (which will fill the cache with candidate certificates)
6282 and then examining the cache for matches. This is probably
6283 the best we can do without throwing out X509_LOOKUP
6284 entirely (maybe later...).
6286 The X509_VERIFY_CTX structure has been enhanced considerably.
6288 All certificate lookup operations now go via a get_issuer()
6289 callback. Although this currently uses an X509_STORE it
6290 can be replaced by custom lookups. This is a simple way
6291 to bypass the X509_STORE hackery necessary to make this
6292 work and makes it possible to use more efficient techniques
6293 in future. A very simple version which uses a simple
6294 STACK for its trusted certificate store is also provided
6295 using X509_STORE_CTX_trusted_stack().
6297 The verify_cb() and verify() callbacks now have equivalents
6298 in the X509_STORE_CTX structure.
6300 X509_STORE_CTX also has a 'flags' field which can be used
6301 to customise the verify behaviour.
6304 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6305 excludes S/MIME capabilities.
6308 *) When a certificate request is read in keep a copy of the
6309 original encoding of the signed data and use it when outputing
6310 again. Signatures then use the original encoding rather than
6311 a decoded, encoded version which may cause problems if the
6312 request is improperly encoded.
6315 *) For consistency with other BIO_puts implementations, call
6316 buffer_write(b, ...) directly in buffer_puts instead of calling
6319 In BIO_puts, increment b->num_write as in BIO_write.
6320 [Peter.Sylvester@EdelWeb.fr]
6322 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6323 BN_zero, we may not return a BIGNUM with an array consisting of
6327 *) Avoid calling abort() from within the library when problems are
6328 detected, except if preprocessor symbols have been defined
6329 (such as REF_CHECK, BN_DEBUG etc.).
6332 *) New openssl application 'rsautl'. This utility can be
6333 used for low level RSA operations. DER public key
6334 BIO/fp routines also added.
6337 *) New Configure entry and patches for compiling on QNX 4.
6338 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6340 *) A demo state-machine implementation was sponsored by
6341 Nuron (http://www.nuron.com/) and is now available in
6342 demos/state_machine.
6345 *) New options added to the 'dgst' utility for signature
6346 generation and verification.
6349 *) Unrecognized PKCS#7 content types are now handled via a
6350 catch all ASN1_TYPE structure. This allows unsupported
6351 types to be stored as a "blob" and an application can
6352 encode and decode it manually.
6355 *) Fix various signed/unsigned issues to make a_strex.c
6357 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6359 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6360 length if passed a buffer. ASN1_INTEGER_to_BN failed
6361 if passed a NULL BN and its argument was negative.
6362 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6364 *) Modification to PKCS#7 encoding routines to output definite
6365 length encoding. Since currently the whole structures are in
6366 memory there's not real point in using indefinite length
6367 constructed encoding. However if OpenSSL is compiled with
6368 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6371 *) Added BIO_vprintf() and BIO_vsnprintf().
6374 *) Added more prefixes to parse for in the the strings written
6375 through a logging bio, to cover all the levels that are available
6376 through syslog. The prefixes are now:
6378 PANIC, EMERG, EMR => LOG_EMERG
6379 ALERT, ALR => LOG_ALERT
6380 CRIT, CRI => LOG_CRIT
6381 ERROR, ERR => LOG_ERR
6382 WARNING, WARN, WAR => LOG_WARNING
6383 NOTICE, NOTE, NOT => LOG_NOTICE
6384 INFO, INF => LOG_INFO
6385 DEBUG, DBG => LOG_DEBUG
6387 and as before, if none of those prefixes are present at the
6388 beginning of the string, LOG_ERR is chosen.
6390 On Win32, the LOG_* levels are mapped according to this:
6392 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6393 LOG_WARNING => EVENTLOG_WARNING_TYPE
6394 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6398 *) Made it possible to reconfigure with just the configuration
6399 argument "reconf" or "reconfigure". The command line arguments
6400 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6401 and are retrieved from there when reconfiguring.
6405 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6407 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6410 *) The obj_dat.pl script was messing up the sorting of object
6411 names. The reason was that it compared the quoted version
6412 of strings as a result "OCSP" > "OCSP Signing" because
6413 " > SPACE. Changed script to store unquoted versions of
6414 names and add quotes on output. It was also omitting some
6415 names from the lookup table if they were given a default
6416 value (that is if SN is missing it is given the same
6417 value as LN and vice versa), these are now added on the
6418 grounds that if an object has a name we should be able to
6419 look it up. Finally added warning output when duplicate
6420 short or long names are found.
6423 *) Changes needed for Tandem NSK.
6424 [Scott Uroff <scott@xypro.com>]
6426 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6427 RSA_padding_check_SSLv23(), special padding was never detected
6428 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6429 version rollback attacks was not effective.
6431 In s23_clnt.c, don't use special rollback-attack detection padding
6432 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6433 client; similarly, in s23_srvr.c, don't do the rollback check if
6434 SSL 2.0 is the only protocol enabled in the server.
6437 *) Make it possible to get hexdumps of unprintable data with 'openssl
6438 asn1parse'. By implication, the functions ASN1_parse_dump() and
6439 BIO_dump_indent() are added.
6442 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6443 these print out strings and name structures based on various
6444 flags including RFC2253 support and proper handling of
6445 multibyte characters. Added options to the 'x509' utility
6446 to allow the various flags to be set.
6449 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6450 Also change the functions X509_cmp_current_time() and
6451 X509_gmtime_adj() work with an ASN1_TIME structure,
6452 this will enable certificates using GeneralizedTime in validity
6453 dates to be checked.
6456 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6457 negative public key encodings) on by default,
6458 NO_NEG_PUBKEY_BUG can be set to disable it.
6461 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6462 content octets. An i2c_ASN1_OBJECT is unnecessary because
6463 the encoding can be trivially obtained from the structure.
6466 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6467 not read locks (CRYPTO_r_[un]lock).
6470 *) A first attempt at creating official support for shared
6471 libraries through configuration. I've kept it so the
6472 default is static libraries only, and the OpenSSL programs
6473 are always statically linked for now, but there are
6474 preparations for dynamic linking in place.
6475 This has been tested on Linux and Tru64.
6478 *) Randomness polling function for Win9x, as described in:
6479 Peter Gutmann, Software Generation of Practically Strong
6483 *) Fix so PRNG is seeded in req if using an already existing
6487 *) New options to smime application. -inform and -outform
6488 allow alternative formats for the S/MIME message including
6489 PEM and DER. The -content option allows the content to be
6490 specified separately. This should allow things like Netscape
6491 form signing output easier to verify.
6494 *) Fix the ASN1 encoding of tags using the 'long form'.
6497 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6498 STRING types. These convert content octets to and from the
6499 underlying type. The actual tag and length octets are
6500 already assumed to have been read in and checked. These
6501 are needed because all other string types have virtually
6502 identical handling apart from the tag. By having versions
6503 of the ASN1 functions that just operate on content octets
6504 IMPLICIT tagging can be handled properly. It also allows
6505 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6506 and ASN1_INTEGER are identical apart from the tag.
6509 *) Change the handling of OID objects as follows:
6511 - New object identifiers are inserted in objects.txt, following
6512 the syntax given in objects.README.
6513 - objects.pl is used to process obj_mac.num and create a new
6515 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6518 This is currently kind of a hack, and the perl code in objects.pl
6519 isn't very elegant, but it works as I intended. The simplest way
6520 to check that it worked correctly is to look in obj_dat.h and
6521 check the array nid_objs and make sure the objects haven't moved
6522 around (this is important!). Additions are OK, as well as
6523 consistent name changes.
6526 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6529 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6530 The given file adds to whatever has already been seeded into the
6531 random pool through the RANDFILE configuration file option or
6532 environment variable, or the default random state file.
6535 *) mkstack.pl now sorts each macro group into lexical order.
6536 Previously the output order depended on the order the files
6537 appeared in the directory, resulting in needless rewriting
6541 *) Patches to make OpenSSL compile under Win32 again. Mostly
6542 work arounds for the VC++ problem that it treats func() as
6543 func(void). Also stripped out the parts of mkdef.pl that
6544 added extra typesafe functions: these no longer exist.
6547 *) Reorganisation of the stack code. The macros are now all
6548 collected in safestack.h . Each macro is defined in terms of
6549 a "stack macro" of the form SKM_<name>(type, a, b). The
6550 DEBUG_SAFESTACK is now handled in terms of function casts,
6551 this has the advantage of retaining type safety without the
6552 use of additional functions. If DEBUG_SAFESTACK is not defined
6553 then the non typesafe macros are used instead. Also modified the
6554 mkstack.pl script to handle the new form. Needs testing to see
6555 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6556 the default if no major problems. Similar behaviour for ASN1_SET_OF
6557 and PKCS12_STACK_OF.
6560 *) When some versions of IIS use the 'NET' form of private key the
6561 key derivation algorithm is different. Normally MD5(password) is
6562 used as a 128 bit RC4 key. In the modified case
6563 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6564 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6565 as the old Netscape_RSA functions except they have an additional
6566 'sgckey' parameter which uses the modified algorithm. Also added
6567 an -sgckey command line option to the rsa utility. Thanks to
6568 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6569 algorithm to openssl-dev.
6572 *) The evp_local.h macros were using 'c.##kname' which resulted in
6573 invalid expansion on some systems (SCO 5.0.5 for example).
6574 Corrected to 'c.kname'.
6575 [Phillip Porch <root@theporch.com>]
6577 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6578 a STACK of email addresses from a certificate or request, these look
6579 in the subject name and the subject alternative name extensions and
6580 omit any duplicate addresses.
6583 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6584 This makes DSA verification about 2 % faster.
6587 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6588 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6589 plus overhead for 1024 bit moduli).
6590 This makes exponentiations about 0.5 % faster for 1024 bit
6591 exponents (as measured by "openssl speed rsa2048").
6594 *) Rename memory handling macros to avoid conflicts with other
6596 Malloc => OPENSSL_malloc
6597 Malloc_locked => OPENSSL_malloc_locked
6598 Realloc => OPENSSL_realloc
6599 Free => OPENSSL_free
6602 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6603 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6606 *) CygWin32 support.
6607 [John Jarvie <jjarvie@newsguy.com>]
6609 *) The type-safe stack code has been rejigged. It is now only compiled
6610 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6611 by default all type-specific stack functions are "#define"d back to
6612 standard stack functions. This results in more streamlined output
6613 but retains the type-safety checking possibilities of the original
6617 *) The STACK code has been cleaned up, and certain type declarations
6618 that didn't make a lot of sense have been brought in line. This has
6619 also involved a cleanup of sorts in safestack.h to more correctly
6620 map type-safe stack functions onto their plain stack counterparts.
6621 This work has also resulted in a variety of "const"ifications of
6622 lots of the code, especially "_cmp" operations which should normally
6623 be prototyped with "const" parameters anyway.
6626 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6627 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6628 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6629 where all of 'md' is used each time the PRNG is used, but 'state'
6630 is used only indexed by a cyclic counter. As entropy may not be
6631 well distributed from the beginning, 'md' is important as a
6632 chaining variable. However, the output function chains only half
6633 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6634 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6635 in all of 'state' being rewritten, with the new values depending
6636 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6639 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6640 the handshake is continued after ssl_verify_cert_chain();
6641 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6642 can lead to 'unexplainable' connection aborts later.
6643 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6645 *) Major EVP API cipher revision.
6646 Add hooks for extra EVP features. This allows various cipher
6647 parameters to be set in the EVP interface. Support added for variable
6648 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6649 setting of RC2 and RC5 parameters.
6651 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6654 Remove lots of duplicated code from the EVP library. For example *every*
6655 cipher init() function handles the 'iv' in the same way according to the
6656 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6657 for CFB and OFB modes they zero ctx->num.
6659 New functionality allows removal of S/MIME code RC2 hack.
6661 Most of the routines have the same form and so can be declared in terms
6664 By shifting this to the top level EVP_CipherInit() it can be removed from
6665 all individual ciphers. If the cipher wants to handle IVs or keys
6666 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6669 Change lots of functions like EVP_EncryptUpdate() to now return a
6670 value: although software versions of the algorithms cannot fail
6671 any installed hardware versions can.
6674 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6675 this option is set, tolerate broken clients that send the negotiated
6676 protocol version number instead of the requested protocol version
6680 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6681 i.e. non-zero for export ciphersuites, zero otherwise.
6682 Previous versions had this flag inverted, inconsistent with
6683 rsa_tmp_cb (..._TMP_RSA_CB).
6684 [Bodo Moeller; problem reported by Amit Chopra]
6686 *) Add missing DSA library text string. Work around for some IIS
6687 key files with invalid SEQUENCE encoding.
6690 *) Add a document (doc/standards.txt) that list all kinds of standards
6691 and so on that are implemented in OpenSSL.
6694 *) Enhance c_rehash script. Old version would mishandle certificates
6695 with the same subject name hash and wouldn't handle CRLs at all.
6696 Added -fingerprint option to crl utility, to support new c_rehash
6700 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6703 *) Fix for SSL server purpose checking. Server checking was
6704 rejecting certificates which had extended key usage present
6705 but no ssl client purpose.
6706 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6708 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6709 is a little unclear about how a blank password is handled.
6710 Since the password in encoded as a BMPString with terminating
6711 double NULL a zero length password would end up as just the
6712 double NULL. However no password at all is different and is
6713 handled differently in the PKCS#12 key generation code. NS
6714 treats a blank password as zero length. MSIE treats it as no
6715 password on export: but it will try both on import. We now do
6716 the same: PKCS12_parse() tries zero length and no password if
6717 the password is set to "" or NULL (NULL is now a valid password:
6718 it wasn't before) as does the pkcs12 application.
6721 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6722 perror when PEM_read_bio_X509_REQ fails, the error message must
6723 be obtained from the error queue.
6726 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6727 it in ERR_remove_state if appropriate, and change ERR_get_state
6728 accordingly to avoid race conditions (this is necessary because
6729 thread_hash is no longer constant once set).
6732 *) Bugfix for linux-elf makefile.one.
6735 *) RSA_get_default_method() will now cause a default
6736 RSA_METHOD to be chosen if one doesn't exist already.
6737 Previously this was only set during a call to RSA_new()
6738 or RSA_new_method(NULL) meaning it was possible for
6739 RSA_get_default_method() to return NULL.
6742 *) Added native name translation to the existing DSO code
6743 that will convert (if the flag to do so is set) filenames
6744 that are sufficiently small and have no path information
6745 into a canonical native form. Eg. "blah" converted to
6746 "libblah.so" or "blah.dll" etc.
6749 *) New function ERR_error_string_n(e, buf, len) which is like
6750 ERR_error_string(e, buf), but writes at most 'len' bytes
6751 including the 0 terminator. For ERR_error_string_n, 'buf'
6753 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6755 *) CONF library reworked to become more general. A new CONF
6756 configuration file reader "class" is implemented as well as a
6757 new functions (NCONF_*, for "New CONF") to handle it. The now
6758 old CONF_* functions are still there, but are reimplemented to
6759 work in terms of the new functions. Also, a set of functions
6760 to handle the internal storage of the configuration data is
6761 provided to make it easier to write new configuration file
6762 reader "classes" (I can definitely see something reading a
6763 configuration file in XML format, for example), called _CONF_*,
6764 or "the configuration storage API"...
6766 The new configuration file reading functions are:
6768 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6769 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6771 NCONF_default, NCONF_WIN32
6773 NCONF_dump_fp, NCONF_dump_bio
6775 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6776 NCONF_new creates a new CONF object. This works in the same way
6777 as other interfaces in OpenSSL, like the BIO interface.
6778 NCONF_dump_* dump the internal storage of the configuration file,
6779 which is useful for debugging. All other functions take the same
6780 arguments as the old CONF_* functions wth the exception of the
6781 first that must be a `CONF *' instead of a `LHASH *'.
6783 To make it easer to use the new classes with the old CONF_* functions,
6784 the function CONF_set_default_method is provided.
6787 *) Add '-tls1' option to 'openssl ciphers', which was already
6788 mentioned in the documentation but had not been implemented.
6789 (This option is not yet really useful because even the additional
6790 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6793 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6794 OpenSSL-based applications) load shared libraries and bind to
6795 them in a portable way.
6796 [Geoff Thorpe, with contributions from Richard Levitte]
6798 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6800 *) Make sure _lrotl and _lrotr are only used with MSVC.
6802 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6803 (the default implementation of RAND_status).
6805 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6806 to '-clrext' (= clear extensions), as intended and documented.
6807 [Bodo Moeller; inconsistency pointed out by Michael Attili
6810 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6811 was larger than the MD block size.
6812 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6814 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6815 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6816 using the passed key: if the passed key was a private key the result
6817 of X509_print(), for example, would be to print out all the private key
6821 *) des_quad_cksum() byte order bug fix.
6822 [Ulf Möller, using the problem description in krb4-0.9.7, where
6823 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6825 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6827 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6829 *) For easily testing in shell scripts whether some command
6830 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6831 returns with exit code 0 iff no command of the given name is available.
6832 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6833 the output goes to stdout and nothing is printed to stderr.
6834 Additional arguments are always ignored.
6836 Since for each cipher there is a command of the same name,
6837 the 'no-cipher' compilation switches can be tested this way.
6839 ('openssl no-XXX' is not able to detect pseudo-commands such
6840 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6843 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6846 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6847 is set; it will be thrown away anyway because each handshake creates
6849 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6850 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6851 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6852 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6855 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6856 'Q' and 'R' lose their special meanings (quit/renegotiate).
6857 This is part of what -quiet does; unlike -quiet, -ign_eof
6858 does not suppress any output.
6861 *) Add compatibility options to the purpose and trust code. The
6862 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6863 accepts a certificate or CA, this was the previous behaviour,
6864 with all the associated security issues.
6866 X509_TRUST_COMPAT is the old trust behaviour: only and
6867 automatically trust self signed roots in certificate store. A
6868 new trust setting X509_TRUST_DEFAULT is used to specify that
6869 a purpose has no associated trust setting and it should instead
6870 use the value in the default purpose.
6873 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6874 and fix a memory leak.
6877 *) In util/mkerr.pl (which implements 'make errors'), preserve
6878 reason strings from the previous version of the .c file, as
6879 the default to have only downcase letters (and digits) in
6880 automatically generated reasons codes is not always appropriate.
6883 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6884 using strerror. Previously, ERR_reason_error_string() returned
6885 library names as reason strings for SYSerr; but SYSerr is a special
6886 case where small numbers are errno values, not library numbers.
6889 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6890 converts DSA parameters into DH parameters. (When creating parameters,
6891 DSA_generate_parameters is used.)
6894 *) Include 'length' (recommended exponent length) in C code generated
6895 by 'openssl dhparam -C'.
6898 *) The second argument to set_label in perlasm was already being used
6899 so couldn't be used as a "file scope" flag. Moved to third argument
6903 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6904 instead of RAND_bytes for encryption IVs and salts.
6907 *) Include RAND_status() into RAND_METHOD instead of implementing
6908 it only for md_rand.c Otherwise replacing the PRNG by calling
6909 RAND_set_rand_method would be impossible.
6912 *) Don't let DSA_generate_key() enter an infinite loop if the random
6913 number generation fails.
6916 *) New 'rand' application for creating pseudo-random output.
6919 *) Added configuration support for Linux/IA64
6920 [Rolf Haberrecker <rolf@suse.de>]
6922 *) Assembler module support for Mingw32.
6925 *) Shared library support for HPUX (in shlib/).
6926 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6928 *) Shared library support for Solaris gcc.
6929 [Lutz Behnke <behnke@trustcenter.de>]
6931 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6933 *) PKCS7_encrypt() was adding text MIME headers twice because they
6934 were added manually and by SMIME_crlf_copy().
6937 *) In bntest.c don't call BN_rand with zero bits argument.
6938 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6940 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6941 case was implemented. This caused BN_div_recp() to fail occasionally.
6944 *) Add an optional second argument to the set_label() in the perl
6945 assembly language builder. If this argument exists and is set
6946 to 1 it signals that the assembler should use a symbol whose
6947 scope is the entire file, not just the current function. This
6948 is needed with MASM which uses the format label:: for this scope.
6949 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6951 *) Change the ASN1 types so they are typedefs by default. Before
6952 almost all types were #define'd to ASN1_STRING which was causing
6953 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6957 *) Change names of new functions to the new get1/get0 naming
6958 convention: After 'get1', the caller owns a reference count
6959 and has to call ..._free; 'get0' returns a pointer to some
6960 data structure without incrementing reference counters.
6961 (Some of the existing 'get' functions increment a reference
6962 counter, some don't.)
6963 Similarly, 'set1' and 'add1' functions increase reference
6964 counters or duplicate objects.
6967 *) Allow for the possibility of temp RSA key generation failure:
6968 the code used to assume it always worked and crashed on failure.
6971 *) Fix potential buffer overrun problem in BIO_printf().
6972 [Ulf Möller, using public domain code by Patrick Powell; problem
6973 pointed out by David Sacerdote <das33@cornell.edu>]
6975 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6976 RAND_egd() and RAND_status(). In the command line application,
6977 the EGD socket can be specified like a seed file using RANDFILE
6981 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6982 Some CAs (e.g. Verisign) distribute certificates in this form.
6985 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6986 list to exclude them. This means that no special compilation option
6987 is needed to use anonymous DH: it just needs to be included in the
6991 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6992 EVP_MD_type. The old functionality is available in a new macro called
6993 EVP_MD_md(). Change code that uses it and update docs.
6996 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6997 where the 'void *' argument is replaced by a function pointer argument.
6998 Previously 'void *' was abused to point to functions, which works on
6999 many platforms, but is not correct. As these functions are usually
7000 called by macros defined in OpenSSL header files, most source code
7001 should work without changes.
7004 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7005 sections with information on -D... compiler switches used for
7006 compiling the library so that applications can see them. To enable
7007 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7008 must be defined. E.g.,
7009 #define OPENSSL_ALGORITHM_DEFINES
7010 #include <openssl/opensslconf.h>
7011 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7012 [Richard Levitte, Ulf and Bodo Möller]
7014 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7018 *) Change the 'other' type in certificate aux info to a STACK_OF
7019 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7020 the required ASN1 format: arbitrary types determined by an OID.
7023 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7024 argument to 'req'. This is not because the function is newer or
7025 better than others it just uses the work 'NEW' in the certificate
7026 request header lines. Some software needs this.
7029 *) Reorganise password command line arguments: now passwords can be
7030 obtained from various sources. Delete the PEM_cb function and make
7031 it the default behaviour: i.e. if the callback is NULL and the
7032 usrdata argument is not NULL interpret it as a null terminated pass
7033 phrase. If usrdata and the callback are NULL then the pass phrase
7034 is prompted for as usual.
7037 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7038 the support is automatically enabled. The resulting binaries will
7039 autodetect the card and use it if present.
7040 [Ben Laurie and Compaq Inc.]
7042 *) Work around for Netscape hang bug. This sends certificate request
7043 and server done in one record. Since this is perfectly legal in the
7044 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7045 the bugs/SSLv3 entry for more info.
7048 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7051 *) Add -rand argument to smime and pkcs12 applications and read/write
7055 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7058 *) Add command line password options to the remaining applications.
7061 *) Bug fix for BN_div_recp() for numerators with an even number of
7065 *) More tests in bntest.c, and changed test_bn output.
7068 *) ./config recognizes MacOS X now.
7071 *) Bug fix for BN_div() when the first words of num and divsor are
7072 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7075 *) Add support for various broken PKCS#8 formats, and command line
7076 options to produce them.
7079 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7080 get temporary BIGNUMs from a BN_CTX.
7083 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7087 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7088 include a #define from the old name to the new. The original intent
7089 was that statically linked binaries could for example just call
7090 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7091 link with digests. This never worked becayse SSLeay_add_all_digests()
7092 and SSLeay_add_all_ciphers() were in the same source file so calling
7093 one would link with the other. They are now in separate source files.
7096 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7099 *) Use a less unusual form of the Miller-Rabin primality test (it used
7100 a binary algorithm for exponentiation integrated into the Miller-Rabin
7101 loop, our standard modexp algorithms are faster).
7104 *) Support for the EBCDIC character set completed.
7105 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7107 *) Source code cleanups: use const where appropriate, eliminate casts,
7108 use void * instead of char * in lhash.
7111 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7112 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7113 this the server could overwrite ephemeral keys that the client
7117 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7118 using 50 iterations of the Rabin-Miller test.
7120 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7121 iterations of the Rabin-Miller test as required by the appendix
7122 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7123 As BN_is_prime_fasttest includes trial division, DSA parameter
7124 generation becomes much faster.
7126 This implies a change for the callback functions in DSA_is_prime
7127 and DSA_generate_parameters: The callback function is called once
7128 for each positive witness in the Rabin-Miller test, not just
7129 occasionally in the inner loop; and the parameters to the
7130 callback function now provide an iteration count for the outer
7131 loop rather than for the current invocation of the inner loop.
7132 DSA_generate_parameters additionally can call the callback
7133 function with an 'iteration count' of -1, meaning that a
7134 candidate has passed the trial division test (when q is generated
7135 from an application-provided seed, trial division is skipped).
7138 *) New function BN_is_prime_fasttest that optionally does trial
7139 division before starting the Rabin-Miller test and has
7140 an additional BN_CTX * argument (whereas BN_is_prime always
7141 has to allocate at least one BN_CTX).
7142 'callback(1, -1, cb_arg)' is called when a number has passed the
7143 trial division stage.
7146 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7150 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7153 *) New function BN_pseudo_rand().
7156 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7157 bignum version of BN_from_montgomery() with the working code from
7158 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7162 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7163 made it impossible to use the same SSL_SESSION data structure in
7164 SSL2 clients in multiple threads.
7167 *) The return value of RAND_load_file() no longer counts bytes obtained
7168 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7169 to seed the PRNG (previously an explicit byte count was required).
7170 [Ulf Möller, Bodo Möller]
7172 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7173 used (char *) instead of (void *) and had casts all over the place.
7176 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7179 *) Retain source code compatibility for BN_prime_checks macro:
7180 BN_is_prime(..., BN_prime_checks, ...) now uses
7181 BN_prime_checks_for_size to determine the appropriate number of
7182 Rabin-Miller iterations.
7185 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7186 DH_CHECK_P_NOT_SAFE_PRIME.
7187 (Check if this is true? OpenPGP calls them "strong".)
7190 *) Merge the functionality of "dh" and "gendh" programs into a new program
7191 "dhparam". The old programs are retained for now but will handle DH keys
7192 (instead of parameters) in future.
7195 *) Make the ciphers, s_server and s_client programs check the return values
7196 when a new cipher list is set.
7199 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7200 ciphers. Before when the 56bit ciphers were enabled the sorting was
7203 The syntax for the cipher sorting has been extended to support sorting by
7204 cipher-strength (using the strength_bits hard coded in the tables).
7205 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7207 Fix a bug in the cipher-command parser: when supplying a cipher command
7208 string with an "undefined" symbol (neither command nor alphanumeric
7209 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7210 an error is flagged.
7212 Due to the strength-sorting extension, the code of the
7213 ssl_create_cipher_list() function was completely rearranged. I hope that
7214 the readability was also increased :-)
7215 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7217 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7218 for the first serial number and places 2 in the serial number file. This
7219 avoids problems when the root CA is created with serial number zero and
7220 the first user certificate has the same issuer name and serial number
7224 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7225 the new code. Add documentation for this stuff.
7228 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7229 X509_*() to X509at_*() on the grounds that they don't handle X509
7230 structures and behave in an analagous way to the X509v3 functions:
7231 they shouldn't be called directly but wrapper functions should be used
7234 So we also now have some wrapper functions that call the X509at functions
7235 when passed certificate requests. (TO DO: similar things can be done with
7236 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7237 things. Some of these need some d2i or i2d and print functionality
7238 because they handle more complex structures.)
7241 *) Add missing #ifndefs that caused missing symbols when building libssl
7242 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7243 NO_RSA in ssl/s2*.c.
7244 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7246 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7247 has a return value which indicates the quality of the random data
7248 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7249 error queue. New function RAND_pseudo_bytes() generates output that is
7250 guaranteed to be unique but not unpredictable. RAND_add is like
7251 RAND_seed, but takes an extra argument for an entropy estimate
7252 (RAND_seed always assumes full entropy).
7255 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7256 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7257 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7258 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7259 false-positive rate of at most 2^-80 for random input.
7262 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7265 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7266 in the 0.9.5 release), this returns the chain
7267 from an X509_CTX structure with a dup of the stack and all
7268 the X509 reference counts upped: so the stack will exist
7269 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7272 Also make SSL_SESSION_print() print out the verify return
7276 *) Add manpage for the pkcs12 command. Also change the default
7277 behaviour so MAC iteration counts are used unless the new
7278 -nomaciter option is used. This improves file security and
7279 only older versions of MSIE (4.0 for example) need it.
7282 *) Honor the no-xxx Configure options when creating .DEF files.
7285 *) Add PKCS#10 attributes to field table: challengePassword,
7286 unstructuredName and unstructuredAddress. These are taken from
7287 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7288 international characters are used.
7290 More changes to X509_ATTRIBUTE code: allow the setting of types
7291 based on strings. Remove the 'loc' parameter when adding
7292 attributes because these will be a SET OF encoding which is sorted
7296 *) Initial changes to the 'req' utility to allow request generation
7297 automation. This will allow an application to just generate a template
7298 file containing all the field values and have req construct the
7301 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7302 used all over the place including certificate requests and PKCS#7
7303 structures. They are currently handled manually where necessary with
7304 some primitive wrappers for PKCS#7. The new functions behave in a
7305 manner analogous to the X509 extension functions: they allow
7306 attributes to be looked up by NID and added.
7308 Later something similar to the X509V3 code would be desirable to
7309 automatically handle the encoding, decoding and printing of the
7310 more complex types. The string types like challengePassword can
7311 be handled by the string table functions.
7313 Also modified the multi byte string table handling. Now there is
7314 a 'global mask' which masks out certain types. The table itself
7315 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7316 is useful when for example there is only one permissible type
7317 (as in countryName) and using the mask might result in no valid
7321 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7322 SSL_get_peer_finished to allow applications to obtain the latest
7323 Finished messages sent to the peer or expected from the peer,
7324 respectively. (SSL_get_peer_finished is usually the Finished message
7325 actually received from the peer, otherwise the protocol will be aborted.)
7327 As the Finished message are message digests of the complete handshake
7328 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7329 be used for external authentication procedures when the authentication
7330 provided by SSL/TLS is not desired or is not enough.
7333 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7334 the host supports BWX extension and if Compaq C is present on the
7335 $PATH. Just exploiting of the BWX extension results in 20-30%
7336 performance kick for some algorithms, e.g. DES and RC4 to mention
7337 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7341 *) Add support for MS "fast SGC". This is arguably a violation of the
7342 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7343 weak crypto and after checking the certificate is SGC a second one
7344 with strong crypto. MS SGC stops the first handshake after receiving
7345 the server certificate message and sends a second client hello. Since
7346 a server will typically do all the time consuming operations before
7347 expecting any further messages from the client (server key exchange
7348 is the most expensive) there is little difference between the two.
7350 To get OpenSSL to support MS SGC we have to permit a second client
7351 hello message after we have sent server done. In addition we have to
7352 reset the MAC if we do get this second client hello.
7355 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7356 if a DER encoded private key is RSA or DSA traditional format. Changed
7357 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7358 format DER encoded private key. Newer code should use PKCS#8 format which
7359 has the key type encoded in the ASN1 structure. Added DER private key
7360 support to pkcs8 application.
7363 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7364 ciphersuites has been selected (as required by the SSL 3/TLS 1
7365 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7366 is set, we interpret this as a request to violate the specification
7367 (the worst that can happen is a handshake failure, and 'correct'
7368 behaviour would result in a handshake failure anyway).
7371 *) In SSL_CTX_add_session, take into account that there might be multiple
7372 SSL_SESSION structures with the same session ID (e.g. when two threads
7373 concurrently obtain them from an external cache).
7374 The internal cache can handle only one SSL_SESSION with a given ID,
7375 so if there's a conflict, we now throw out the old one to achieve
7379 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7380 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7381 some routines that use cipher OIDs: some ciphers do not have OIDs
7382 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7386 *) Simplify the trust setting structure and code. Now we just have
7387 two sequences of OIDs for trusted and rejected settings. These will
7388 typically have values the same as the extended key usage extension
7389 and any application specific purposes.
7391 The trust checking code now has a default behaviour: it will just
7392 check for an object with the same NID as the passed id. Functions can
7393 be provided to override either the default behaviour or the behaviour
7394 for a given id. SSL client, server and email already have functions
7395 in place for compatibility: they check the NID and also return "trusted"
7396 if the certificate is self signed.
7399 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7400 traditional format into an EVP_PKEY structure.
7403 *) Add a password callback function PEM_cb() which either prompts for
7404 a password if usr_data is NULL or otherwise assumes it is a null
7405 terminated password. Allow passwords to be passed on command line
7406 environment or config files in a few more utilities.
7409 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7410 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7411 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7412 Update documentation.
7415 *) Support for ASN1 "NULL" type. This could be handled before by using
7416 ASN1_TYPE but there wasn't any function that would try to read a NULL
7417 and produce an error if it couldn't. For compatibility we also have
7418 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7419 don't allocate anything because they don't need to.
7422 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7424 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7426 *) Rebuild of the memory allocation routines used by OpenSSL code and
7427 possibly others as well. The purpose is to make an interface that
7428 provide hooks so anyone can build a separate set of allocation and
7429 deallocation routines to be used by OpenSSL, for example memory
7430 pool implementations, or something else, which was previously hard
7431 since Malloc(), Realloc() and Free() were defined as macros having
7432 the values malloc, realloc and free, respectively (except for Win32
7433 compilations). The same is provided for memory debugging code.
7434 OpenSSL already comes with functionality to find memory leaks, but
7435 this gives people a chance to debug other memory problems.
7437 With these changes, a new set of functions and macros have appeared:
7439 CRYPTO_set_mem_debug_functions() [F]
7440 CRYPTO_get_mem_debug_functions() [F]
7441 CRYPTO_dbg_set_options() [F]
7442 CRYPTO_dbg_get_options() [F]
7443 CRYPTO_malloc_debug_init() [M]
7445 The memory debug functions are NULL by default, unless the library
7446 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7447 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7448 gives the standard debugging functions that come with OpenSSL) or
7449 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7450 provided by the library user) must be used. When the standard
7451 debugging functions are used, CRYPTO_dbg_set_options can be used to
7452 request additional information:
7453 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7454 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7456 Also, things like CRYPTO_set_mem_functions will always give the
7457 expected result (the new set of functions is used for allocation
7458 and deallocation) at all times, regardless of platform and compiler
7461 To finish it up, some functions that were never use in any other
7462 way than through macros have a new API and new semantic:
7465 CRYPTO_dbg_realloc()
7468 All macros of value have retained their old syntax.
7469 [Richard Levitte and Bodo Moeller]
7471 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7472 ordering of SMIMECapabilities wasn't in "strength order" and there
7473 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7477 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7478 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7479 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7481 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7482 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7483 functionality to handle multipart/signed properly) and a utility
7484 called 'smime' to call all this stuff. This is based on code I
7485 originally wrote for Celo who have kindly allowed it to be
7486 included in OpenSSL.
7489 *) Add variants des_set_key_checked and des_set_key_unchecked of
7490 des_set_key (aka des_key_sched). Global variable des_check_key
7491 decides which of these is called by des_set_key; this way
7492 des_check_key behaves as it always did, but applications and
7493 the library itself, which was buggy for des_check_key == 1,
7494 have a cleaner way to pick the version they need.
7497 *) New function PKCS12_newpass() which changes the password of a
7501 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7502 dynamic mix. In both cases the ids can be used as an index into the
7503 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7504 functions so they accept a list of the field values and the
7505 application doesn't need to directly manipulate the X509_TRUST
7509 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7513 *) Modify the way the V3 extension code looks up extensions. This now
7514 works in a similar way to the object code: we have some "standard"
7515 extensions in a static table which is searched with OBJ_bsearch()
7516 and the application can add dynamic ones if needed. The file
7517 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7518 updated whenever a new extension is added to the core code and kept
7519 in ext_nid order. There is a simple program 'tabtest.c' which checks
7520 this. New extensions are not added too often so this file can readily
7521 be maintained manually.
7523 There are two big advantages in doing things this way. The extensions
7524 can be looked up immediately and no longer need to be "added" using
7525 X509V3_add_standard_extensions(): this function now does nothing.
7526 [Side note: I get *lots* of email saying the extension code doesn't
7527 work because people forget to call this function]
7528 Also no dynamic allocation is done unless new extensions are added:
7529 so if we don't add custom extensions there is no need to call
7530 X509V3_EXT_cleanup().
7533 *) Modify enc utility's salting as follows: make salting the default. Add a
7534 magic header, so unsalted files fail gracefully instead of just decrypting
7535 to garbage. This is because not salting is a big security hole, so people
7536 should be discouraged from doing it.
7539 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7540 digest to be passed on the command line but it only used this
7541 parameter when signing a certificate. Modified so all relevant
7542 operations are affected by the digest parameter including the
7543 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7544 DSA key was used because it didn't fix the digest.
7547 *) Initial certificate chain verify code. Currently tests the untrusted
7548 certificates for consistency with the verify purpose (which is set
7549 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7551 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7552 this is because it will reject chains with invalid extensions whereas
7553 every previous version of OpenSSL and SSLeay made no checks at all.
7555 Trust code: checks the root CA for the relevant trust settings. Trust
7556 settings have an initial value consistent with the verify purpose: e.g.
7557 if the verify purpose is for SSL client use it expects the CA to be
7558 trusted for SSL client use. However the default value can be changed to
7559 permit custom trust settings: one example of this would be to only trust
7560 certificates from a specific "secure" set of CAs.
7562 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7563 which should be used for version portability: especially since the
7564 verify structure is likely to change more often now.
7566 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7567 to set them. If not set then assume SSL clients will verify SSL servers
7570 Two new options to the verify program: -untrusted allows a set of
7571 untrusted certificates to be passed in and -purpose which sets the
7572 intended purpose of the certificate. If a purpose is set then the
7573 new chain verify code is used to check extension consistency.
7576 *) Support for the authority information access extension.
7579 *) Modify RSA and DSA PEM read routines to transparently handle
7580 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7581 public keys in a format compatible with certificate
7582 SubjectPublicKeyInfo structures. Unfortunately there were already
7583 functions called *_PublicKey_* which used various odd formats so
7584 these are retained for compatibility: however the DSA variants were
7585 never in a public release so they have been deleted. Changed dsa/rsa
7586 utilities to handle the new format: note no releases ever handled public
7587 keys so we should be OK.
7589 The primary motivation for this change is to avoid the same fiasco
7590 that dogs private keys: there are several incompatible private key
7591 formats some of which are standard and some OpenSSL specific and
7592 require various evil hacks to allow partial transparent handling and
7593 even then it doesn't work with DER formats. Given the option anything
7594 other than PKCS#8 should be dumped: but the other formats have to
7595 stay in the name of compatibility.
7597 With public keys and the benefit of hindsight one standard format
7598 is used which works with EVP_PKEY, RSA or DSA structures: though
7599 it clearly returns an error if you try to read the wrong kind of key.
7601 Added a -pubkey option to the 'x509' utility to output the public key.
7602 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7603 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7604 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7605 that do the same as the EVP_PKEY_assign_*() except they up the
7606 reference count of the added key (they don't "swallow" the
7610 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7611 CRLs would fail if the file contained no certificates or no CRLs:
7612 added a new function to read in both types and return the number
7613 read: this means that if none are read it will be an error. The
7614 DER versions of the certificate and CRL reader would always fail
7615 because it isn't possible to mix certificates and CRLs in DER format
7616 without choking one or the other routine. Changed this to just read
7617 a certificate: this is the best we can do. Also modified the code
7618 in apps/verify.c to take notice of return codes: it was previously
7619 attempting to read in certificates from NULL pointers and ignoring
7620 any errors: this is one reason why the cert and CRL reader seemed
7621 to work. It doesn't check return codes from the default certificate
7622 routines: these may well fail if the certificates aren't installed.
7625 *) Code to support otherName option in GeneralName.
7628 *) First update to verify code. Change the verify utility
7629 so it warns if it is passed a self signed certificate:
7630 for consistency with the normal behaviour. X509_verify
7631 has been modified to it will now verify a self signed
7632 certificate if *exactly* the same certificate appears
7633 in the store: it was previously impossible to trust a
7634 single self signed certificate. This means that:
7635 openssl verify ss.pem
7636 now gives a warning about a self signed certificate but
7637 openssl verify -CAfile ss.pem ss.pem
7641 *) For servers, store verify_result in SSL_SESSION data structure
7642 (and add it to external session representation).
7643 This is needed when client certificate verifications fails,
7644 but an application-provided verification callback (set by
7645 SSL_CTX_set_cert_verify_callback) allows accepting the session
7646 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7647 but returns 1): When the session is reused, we have to set
7648 ssl->verify_result to the appropriate error code to avoid
7650 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7652 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7653 case in PKCS7_dataInit() where the signed PKCS7 structure
7654 didn't contain any existing data because it was being created.
7655 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7657 *) Add a salt to the key derivation routines in enc.c. This
7658 forms the first 8 bytes of the encrypted file. Also add a
7659 -S option to allow a salt to be input on the command line.
7662 *) New function X509_cmp(). Oddly enough there wasn't a function
7663 to compare two certificates. We do this by working out the SHA1
7664 hash and comparing that. X509_cmp() will be needed by the trust
7668 *) SSL_get1_session() is like SSL_get_session(), but increments
7669 the reference count in the SSL_SESSION returned.
7670 [Geoff Thorpe <geoff@eu.c2.net>]
7672 *) Fix for 'req': it was adding a null to request attributes.
7673 Also change the X509_LOOKUP and X509_INFO code to handle
7674 certificate auxiliary information.
7677 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7681 *) Add the possibility to add extra information to the memory leak
7682 detecting output, to form tracebacks, showing from where each
7683 allocation was originated: CRYPTO_push_info("constant string") adds
7684 the string plus current file name and line number to a per-thread
7685 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7686 is like calling CYRPTO_pop_info() until the stack is empty.
7687 Also updated memory leak detection code to be multi-thread-safe.
7690 *) Add options -text and -noout to pkcs7 utility and delete the
7691 encryption options which never did anything. Update docs.
7694 *) Add options to some of the utilities to allow the pass phrase
7695 to be included on either the command line (not recommended on
7696 OSes like Unix) or read from the environment. Update the
7697 manpages and fix a few bugs.
7700 *) Add a few manpages for some of the openssl commands.
7703 *) Fix the -revoke option in ca. It was freeing up memory twice,
7704 leaking and not finding already revoked certificates.
7707 *) Extensive changes to support certificate auxiliary information.
7708 This involves the use of X509_CERT_AUX structure and X509_AUX
7709 functions. An X509_AUX function such as PEM_read_X509_AUX()
7710 can still read in a certificate file in the usual way but it
7711 will also read in any additional "auxiliary information". By
7712 doing things this way a fair degree of compatibility can be
7713 retained: existing certificates can have this information added
7714 using the new 'x509' options.
7716 Current auxiliary information includes an "alias" and some trust
7717 settings. The trust settings will ultimately be used in enhanced
7718 certificate chain verification routines: currently a certificate
7719 can only be trusted if it is self signed and then it is trusted
7723 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7724 The problem was that one of the replacement routines had not been working
7725 since SSLeay releases. For now the offending routine has been replaced
7726 with non-optimised assembler. Even so, this now gives around 95%
7727 performance improvement for 1024 bit RSA signs.
7730 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7731 handling. Most clients have the effective key size in bits equal to
7732 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7733 A few however don't do this and instead use the size of the decrypted key
7734 to determine the RC2 key length and the AlgorithmIdentifier to determine
7735 the effective key length. In this case the effective key length can still
7736 be 40 bits but the key length can be 168 bits for example. This is fixed
7737 by manually forcing an RC2 key into the EVP_PKEY structure because the
7738 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7739 the key length and effective key length are equal.
7742 *) Add a bunch of functions that should simplify the creation of
7743 X509_NAME structures. Now you should be able to do:
7744 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7745 and have it automatically work out the correct field type and fill in
7746 the structures. The more adventurous can try:
7747 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7748 and it will (hopefully) work out the correct multibyte encoding.
7751 *) Change the 'req' utility to use the new field handling and multibyte
7752 copy routines. Before the DN field creation was handled in an ad hoc
7753 way in req, ca, and x509 which was rather broken and didn't support
7754 BMPStrings or UTF8Strings. Since some software doesn't implement
7755 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7756 using the dirstring_type option. See the new comment in the default
7757 openssl.cnf for more info.
7760 *) Make crypto/rand/md_rand.c more robust:
7761 - Assure unique random numbers after fork().
7762 - Make sure that concurrent threads access the global counter and
7763 md serializably so that we never lose entropy in them
7764 or use exactly the same state in multiple threads.
7765 Access to the large state is not always serializable because
7766 the additional locking could be a performance killer, and
7767 md should be large enough anyway.
7770 *) New file apps/app_rand.c with commonly needed functionality
7771 for handling the random seed file.
7773 Use the random seed file in some applications that previously did not:
7775 dsaparam -genkey (which also ignored its '-rand' option),
7778 x509 (when signing).
7779 Except on systems with /dev/urandom, it is crucial to have a random
7780 seed file at least for key creation, DSA signing, and for DH exchanges;
7781 for RSA signatures we could do without one.
7783 gendh and gendsa (unlike genrsa) used to read only the first byte
7784 of each file listed in the '-rand' option. The function as previously
7785 found in genrsa is now in app_rand.c and is used by all programs
7786 that support '-rand'.
7789 *) In RAND_write_file, use mode 0600 for creating files;
7790 don't just chmod when it may be too late.
7793 *) Report an error from X509_STORE_load_locations
7794 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7797 *) New function ASN1_mbstring_copy() this copies a string in either
7798 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7799 into an ASN1_STRING type. A mask of permissible types is passed
7800 and it chooses the "minimal" type to use or an error if not type
7804 *) Add function equivalents to the various macros in asn1.h. The old
7805 macros are retained with an M_ prefix. Code inside the library can
7806 use the M_ macros. External code (including the openssl utility)
7807 should *NOT* in order to be "shared library friendly".
7810 *) Add various functions that can check a certificate's extensions
7811 to see if it usable for various purposes such as SSL client,
7812 server or S/MIME and CAs of these types. This is currently
7813 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7814 verification. Also added a -purpose flag to x509 utility to
7815 print out all the purposes.
7818 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7822 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7823 for, obtain and decode and extension and obtain its critical flag.
7824 This allows all the necessary extension code to be handled in a
7825 single function call.
7828 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7829 platforms. See crypto/rc4/rc4_enc.c for further details.
7832 *) New -noout option to asn1parse. This causes no output to be produced
7833 its main use is when combined with -strparse and -out to extract data
7834 from a file (which may not be in ASN.1 format).
7837 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7838 when producing the local key id.
7839 [Richard Levitte <levitte@stacken.kth.se>]
7841 *) New option -dhparam in s_server. This allows a DH parameter file to be
7842 stated explicitly. If it is not stated then it tries the first server
7843 certificate file. The previous behaviour hard coded the filename
7847 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7848 a public key to be input or output. For example:
7849 openssl rsa -in key.pem -pubout -out pubkey.pem
7850 Also added necessary DSA public key functions to handle this.
7853 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7854 in the message. This was handled by allowing
7855 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7856 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7858 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7859 to the end of the strings whereas this didn't. This would cause problems
7860 if strings read with d2i_ASN1_bytes() were later modified.
7861 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7863 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7864 data and it contains EOF it will end up returning an error. This is
7865 caused by input 46 bytes long. The cause is due to the way base64
7866 BIOs find the start of base64 encoded data. They do this by trying a
7867 trial decode on each line until they find one that works. When they
7868 do a flag is set and it starts again knowing it can pass all the
7869 data directly through the decoder. Unfortunately it doesn't reset
7870 the context it uses. This means that if EOF is reached an attempt
7871 is made to pass two EOFs through the context and this causes the
7872 resulting error. This can also cause other problems as well. As is
7873 usual with these problems it takes *ages* to find and the fix is
7874 trivial: move one line.
7875 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7877 *) Ugly workaround to get s_client and s_server working under Windows. The
7878 old code wouldn't work because it needed to select() on sockets and the
7879 tty (for keypresses and to see if data could be written). Win32 only
7880 supports select() on sockets so we select() with a 1s timeout on the
7881 sockets and then see if any characters are waiting to be read, if none
7882 are present then we retry, we also assume we can always write data to
7883 the tty. This isn't nice because the code then blocks until we've
7884 received a complete line of data and it is effectively polling the
7885 keyboard at 1s intervals: however it's quite a bit better than not
7886 working at all :-) A dedicated Windows application might handle this
7887 with an event loop for example.
7890 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7891 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7892 will be called when RSA_sign() and RSA_verify() are used. This is useful
7893 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7894 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7895 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7896 This necessitated the support of an extra signature type NID_md5_sha1
7897 for SSL signatures and modifications to the SSL library to use it instead
7898 of calling RSA_public_decrypt() and RSA_private_encrypt().
7901 *) Add new -verify -CAfile and -CApath options to the crl program, these
7902 will lookup a CRL issuers certificate and verify the signature in a
7903 similar way to the verify program. Tidy up the crl program so it
7904 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7905 less strict. It will now permit CRL extensions even if it is not
7906 a V2 CRL: this will allow it to tolerate some broken CRLs.
7909 *) Initialize all non-automatic variables each time one of the openssl
7910 sub-programs is started (this is necessary as they may be started
7911 multiple times from the "OpenSSL>" prompt).
7912 [Lennart Bang, Bodo Moeller]
7914 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7915 removing all other RSA functionality (this is what NO_RSA does). This
7916 is so (for example) those in the US can disable those operations covered
7917 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7921 *) Non-copying interface to BIO pairs.
7922 (still largely untested)
7925 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7926 ASCII string. This was handled independently in various places before.
7929 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7930 UTF8 strings a character at a time.
7933 *) Use client_version from client hello to select the protocol
7934 (s23_srvr.c) and for RSA client key exchange verification
7935 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7938 *) Add various utility functions to handle SPKACs, these were previously
7939 handled by poking round in the structure internals. Added new function
7940 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7941 print, verify and generate SPKACs. Based on an original idea from
7942 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7945 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7948 *) Allow the config file extension section to be overwritten on the
7949 command line. Based on an original idea from Massimiliano Pala
7950 <madwolf@comune.modena.it>. The new option is called -extensions
7951 and can be applied to ca, req and x509. Also -reqexts to override
7952 the request extensions in req and -crlexts to override the crl extensions
7956 *) Add new feature to the SPKAC handling in ca. Now you can include
7957 the same field multiple times by preceding it by "XXXX." for example:
7960 this is the same syntax as used in the req config file.
7963 *) Allow certificate extensions to be added to certificate requests. These
7964 are specified in a 'req_extensions' option of the req section of the
7965 config file. They can be printed out with the -text option to req but
7966 are otherwise ignored at present.
7969 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7970 data read consists of only the final block it would not decrypted because
7971 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7972 A misplaced 'break' also meant the decrypted final block might not be
7973 copied until the next read.
7976 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7977 a few extra parameters to the DH structure: these will be useful if
7978 for example we want the value of 'q' or implement X9.42 DH.
7981 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7982 provides hooks that allow the default DSA functions or functions on a
7983 "per key" basis to be replaced. This allows hardware acceleration and
7984 hardware key storage to be handled without major modification to the
7985 library. Also added low level modexp hooks and CRYPTO_EX structure and
7986 associated functions.
7989 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7990 as "read only": it can't be written to and the buffer it points to will
7991 not be freed. Reading from a read only BIO is much more efficient than
7992 a normal memory BIO. This was added because there are several times when
7993 an area of memory needs to be read from a BIO. The previous method was
7994 to create a memory BIO and write the data to it, this results in two
7995 copies of the data and an O(n^2) reading algorithm. There is a new
7996 function BIO_new_mem_buf() which creates a read only memory BIO from
7997 an area of memory. Also modified the PKCS#7 routines to use read only
8001 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8002 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8003 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8004 but a retry condition occured while trying to read the rest.
8007 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8008 NID_pkcs7_encrypted by default: this was wrong since this should almost
8009 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8010 the encrypted data type: this is a more sensible place to put it and it
8011 allows the PKCS#12 code to be tidied up that duplicated this
8015 *) Changed obj_dat.pl script so it takes its input and output files on
8016 the command line. This should avoid shell escape redirection problems
8020 *) Initial support for certificate extension requests, these are included
8021 in things like Xenroll certificate requests. Included functions to allow
8022 extensions to be obtained and added.
8025 *) -crlf option to s_client and s_server for sending newlines as
8026 CRLF (as required by many protocols).
8029 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8031 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8032 [Ralf S. Engelschall]
8034 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8035 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8037 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8041 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8042 DH parameters/keys (q is lost during that conversion, but the resulting
8043 DH parameters contain its length).
8045 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8046 much faster than DH_generate_parameters (which creates parameters
8047 where p = 2*q + 1), and also the smaller q makes DH computations
8048 much more efficient (160-bit exponentiation instead of 1024-bit
8049 exponentiation); so this provides a convenient way to support DHE
8050 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8051 utter importance to use
8052 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8054 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8055 when such DH parameters are used, because otherwise small subgroup
8056 attacks may become possible!
8059 *) Avoid memory leak in i2d_DHparams.
8062 *) Allow the -k option to be used more than once in the enc program:
8063 this allows the same encrypted message to be read by multiple recipients.
8066 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8067 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8068 it will always use the numerical form of the OID, even if it has a short
8072 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8073 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8074 otherwise bn_mod_exp was called. In the case of hardware keys for example
8075 no private key components need be present and it might store extra data
8076 in the RSA structure, which cannot be accessed from bn_mod_exp.
8077 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8078 private key operations.
8081 *) Added support for SPARC Linux.
8084 *) pem_password_cb function type incompatibly changed from
8085 typedef int pem_password_cb(char *buf, int size, int rwflag);
8087 ....(char *buf, int size, int rwflag, void *userdata);
8088 so that applications can pass data to their callbacks:
8089 The PEM[_ASN1]_{read,write}... functions and macros now take an
8090 additional void * argument, which is just handed through whenever
8091 the password callback is called.
8092 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8094 New function SSL_CTX_set_default_passwd_cb_userdata.
8096 Compatibility note: As many C implementations push function arguments
8097 onto the stack in reverse order, the new library version is likely to
8098 interoperate with programs that have been compiled with the old
8099 pem_password_cb definition (PEM_whatever takes some data that
8100 happens to be on the stack as its last argument, and the callback
8101 just ignores this garbage); but there is no guarantee whatsoever that
8104 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8105 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8106 problems not only on Windows, but also on some Unix platforms.
8107 To avoid problematic command lines, these definitions are now in an
8108 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8109 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8112 *) MIPS III/IV assembler module is reimplemented.
8115 *) More DES library cleanups: remove references to srand/rand and
8116 delete an unused file.
8119 *) Add support for the the free Netwide assembler (NASM) under Win32,
8120 since not many people have MASM (ml) and it can be hard to obtain.
8121 This is currently experimental but it seems to work OK and pass all
8122 the tests. Check out INSTALL.W32 for info.
8125 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8126 without temporary keys kept an extra copy of the server key,
8127 and connections with temporary keys did not free everything in case
8131 *) New function RSA_check_key and new openssl rsa option -check
8132 for verifying the consistency of RSA keys.
8133 [Ulf Moeller, Bodo Moeller]
8135 *) Various changes to make Win32 compile work:
8136 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8137 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8138 comparison" warnings.
8139 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8142 *) Add a debugging option to PKCS#5 v2 key generation function: when
8143 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8144 derived keys are printed to stderr.
8147 *) Copy the flags in ASN1_STRING_dup().
8148 [Roman E. Pavlov <pre@mo.msk.ru>]
8150 *) The x509 application mishandled signing requests containing DSA
8151 keys when the signing key was also DSA and the parameters didn't match.
8153 It was supposed to omit the parameters when they matched the signing key:
8154 the verifying software was then supposed to automatically use the CA's
8155 parameters if they were absent from the end user certificate.
8157 Omitting parameters is no longer recommended. The test was also
8158 the wrong way round! This was probably due to unusual behaviour in
8159 EVP_cmp_parameters() which returns 1 if the parameters match.
8160 This meant that parameters were omitted when they *didn't* match and
8161 the certificate was useless. Certificates signed with 'ca' didn't have
8163 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8165 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8166 The interface is as follows:
8167 Applications can use
8168 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8169 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8170 "off" is now the default.
8171 The library internally uses
8172 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8173 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8174 to disable memory-checking temporarily.
8176 Some inconsistent states that previously were possible (and were
8177 even the default) are now avoided.
8179 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8180 with each memory chunk allocated; this is occasionally more helpful
8181 than just having a counter.
8183 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8185 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8189 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8190 which largely parallels "options", but is for changing API behaviour,
8191 whereas "options" are about protocol behaviour.
8192 Initial "mode" flags are:
8194 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8195 a single record has been written.
8196 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8197 retries use the same buffer location.
8198 (But all of the contents must be
8202 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8205 *) Fix problems with no-hmac etc.
8206 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8208 *) New functions RSA_get_default_method(), RSA_set_method() and
8209 RSA_get_method(). These allows replacement of RSA_METHODs without having
8210 to mess around with the internals of an RSA structure.
8213 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8214 Also really enable memory leak checks in openssl.c and in some
8216 [Chad C. Mulligan, Bodo Moeller]
8218 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8219 up the length of negative integers. This has now been simplified to just
8220 store the length when it is first determined and use it later, rather
8221 than trying to keep track of where data is copied and updating it to
8223 [Steve Henson, reported by Brien Wheeler
8224 <bwheeler@authentica-security.com>]
8226 *) Add a new function PKCS7_signatureVerify. This allows the verification
8227 of a PKCS#7 signature but with the signing certificate passed to the
8228 function itself. This contrasts with PKCS7_dataVerify which assumes the
8229 certificate is present in the PKCS#7 structure. This isn't always the
8230 case: certificates can be omitted from a PKCS#7 structure and be
8231 distributed by "out of band" means (such as a certificate database).
8234 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8235 function prototypes in pem.h, also change util/mkdef.pl to add the
8236 necessary function names.
8239 *) mk1mf.pl (used by Windows builds) did not properly read the
8240 options set by Configure in the top level Makefile, and Configure
8241 was not even able to write more than one option correctly.
8242 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8245 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8246 file to be loaded from a BIO or FILE pointer. The BIO version will
8247 for example allow memory BIOs to contain config info.
8250 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8251 Whoever hopes to achieve shared-library compatibility across versions
8252 must use this, not the compile-time macro.
8253 (Exercise 0.9.4: Which is the minimum library version required by
8255 Note: All this applies only to multi-threaded programs, others don't
8259 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8260 through a BIO pair triggered the default case, i.e.
8261 SSLerr(...,SSL_R_UNKNOWN_STATE).
8264 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8265 can use the SSL library even if none of the specific BIOs is
8269 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8270 for the encoded length.
8271 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8273 *) Add initial documentation of the X509V3 functions.
8276 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8277 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8278 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8279 secure PKCS#8 private key format with a high iteration count.
8282 *) Fix determination of Perl interpreter: A perl or perl5
8283 _directory_ in $PATH was also accepted as the interpreter.
8284 [Ralf S. Engelschall]
8286 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8287 wrong with it but it was very old and did things like calling
8288 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8292 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8293 to use the new extension code.
8296 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8297 with macros. This should make it easier to change their form, add extra
8298 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8302 *) Add to configuration table a new entry that can specify an alternative
8303 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8304 according to Mark Crispin <MRC@Panda.COM>.
8308 *) DES CBC did not update the IV. Weird.
8311 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8312 Changing the behaviour of the former might break existing programs --
8313 where IV updating is needed, des_ncbc_encrypt can be used.
8316 *) When bntest is run from "make test" it drives bc to check its
8317 calculations, as well as internally checking them. If an internal check
8318 fails, it needs to cause bc to give a non-zero result or make test carries
8319 on without noticing the failure. Fixed.
8322 *) DES library cleanups.
8325 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8326 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8327 ciphers. NOTE: although the key derivation function has been verified
8328 against some published test vectors it has not been extensively tested
8329 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8333 *) Instead of "mkdir -p", which is not fully portable, use new
8334 Perl script "util/mkdir-p.pl".
8337 *) Rewrite the way password based encryption (PBE) is handled. It used to
8338 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8339 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8340 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8341 the 'parameter' field of the AlgorithmIdentifier is passed to the
8342 underlying key generation function so it must do its own ASN1 parsing.
8343 This has also changed the EVP_PBE_CipherInit() function which now has a
8344 'parameter' argument instead of literal salt and iteration count values
8345 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8348 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8349 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8350 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8351 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8352 value was just used as a "magic string" and not used directly its
8353 value doesn't matter.
8356 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8360 *) "linux-sparc64" configuration (ultrapenguin).
8361 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8362 "linux-sparc" configuration.
8363 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8365 *) config now generates no-xxx options for missing ciphers.
8368 *) Support the EBCDIC character set (work in progress).
8369 File ebcdic.c not yet included because it has a different license.
8370 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8372 *) Support BS2000/OSD-POSIX.
8373 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8375 *) Make callbacks for key generation use void * instead of char *.
8378 *) Make S/MIME samples compile (not yet tested).
8381 *) Additional typesafe stacks.
8384 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8388 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8390 *) New configuration variant "sco5-gcc".
8392 *) Updated some demos.
8393 [Sean O Riordain, Wade Scholine]
8395 *) Add missing BIO_free at exit of pkcs12 application.
8398 *) Fix memory leak in conf.c.
8401 *) Updates for Win32 to assembler version of MD5.
8404 *) Set #! path to perl in apps/der_chop to where we found it
8405 instead of using a fixed path.
8408 *) SHA library changes for irix64-mips4-cc.
8411 *) Improvements for VMS support.
8415 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8417 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8418 This also avoids the problems with SC4.2 and unpatched SC5.
8419 [Andy Polyakov <appro@fy.chalmers.se>]
8421 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8422 These are required because of the typesafe stack would otherwise break
8423 existing code. If old code used a structure member which used to be STACK
8424 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8425 sk_num or sk_value it would produce an error because the num, data members
8426 are not present in STACK_OF. Now it just produces a warning. sk_set
8427 replaces the old method of assigning a value to sk_value
8428 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8429 that does this will no longer work (and should use sk_set instead) but
8430 this could be regarded as a "questionable" behaviour anyway.
8433 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8434 correctly handle encrypted S/MIME data.
8437 *) Change type of various DES function arguments from des_cblock
8438 (which means, in function argument declarations, pointer to char)
8439 to des_cblock * (meaning pointer to array with 8 char elements),
8440 which allows the compiler to do more typechecking; it was like
8441 that back in SSLeay, but with lots of ugly casts.
8443 Introduce new type const_des_cblock.
8446 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8447 problems: find RecipientInfo structure that matches recipient certificate
8448 and initialise the ASN1 structures properly based on passed cipher.
8451 *) Belatedly make the BN tests actually check the results.
8454 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8455 to and from BNs: it was completely broken. New compilation option
8456 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8457 key elements as negative integers.
8460 *) Reorganize and speed up MD5.
8461 [Andy Polyakov <appro@fy.chalmers.se>]
8464 [Richard Levitte <richard@levitte.org>]
8466 *) New option -out to asn1parse to allow the parsed structure to be
8467 output to a file. This is most useful when combined with the -strparse
8468 option to examine the output of things like OCTET STRINGS.
8471 *) Make SSL library a little more fool-proof by not requiring any longer
8472 that SSL_set_{accept,connect}_state be called before
8473 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8474 in many applications because usually everything *appeared* to work as
8475 intended anyway -- now it really works as intended).
8478 *) Move openssl.cnf out of lib/.
8481 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8482 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8483 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8484 [Ralf S. Engelschall]
8486 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8487 handle PKCS#7 enveloped data properly.
8488 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8490 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8491 copying pointers. The cert_st handling is changed by this in
8492 various ways (and thus what used to be known as ctx->default_cert
8493 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8494 any longer when s->cert does not give us what we need).
8495 ssl_cert_instantiate becomes obsolete by this change.
8496 As soon as we've got the new code right (possibly it already is?),
8497 we have solved a couple of bugs of the earlier code where s->cert
8498 was used as if it could not have been shared with other SSL structures.
8500 Note that using the SSL API in certain dirty ways now will result
8501 in different behaviour than observed with earlier library versions:
8502 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8503 does not influence s as it used to.
8505 In order to clean up things more thoroughly, inside SSL_SESSION
8506 we don't use CERT any longer, but a new structure SESS_CERT
8507 that holds per-session data (if available); currently, this is
8508 the peer's certificate chain and, for clients, the server's certificate
8509 and temporary key. CERT holds only those values that can have
8510 meaningful defaults in an SSL_CTX.
8513 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8514 from the internal representation. Various PKCS#7 fixes: remove some
8515 evil casts and set the enc_dig_alg field properly based on the signing
8519 *) Allow PKCS#12 password to be set from the command line or the
8520 environment. Let 'ca' get its config file name from the environment
8521 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8525 *) Allow certificate policies extension to use an IA5STRING for the
8526 organization field. This is contrary to the PKIX definition but
8527 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8531 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8532 without disallowing inline assembler and the like for non-pedantic builds.
8535 *) Support Borland C++ builder.
8536 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8541 *) SHA-1 cleanups and performance enhancements.
8542 [Andy Polyakov <appro@fy.chalmers.se>]
8544 *) Sparc v8plus assembler for the bignum library.
8545 [Andy Polyakov <appro@fy.chalmers.se>]
8547 *) Accept any -xxx and +xxx compiler options in Configure.
8550 *) Update HPUX configuration.
8553 *) Add missing sk_<type>_unshift() function to safestack.h
8554 [Ralf S. Engelschall]
8556 *) New function SSL_CTX_use_certificate_chain_file that sets the
8557 "extra_cert"s in addition to the certificate. (This makes sense
8558 only for "PEM" format files, as chains as a whole are not
8562 *) Support verify_depth from the SSL API.
8563 x509_vfy.c had what can be considered an off-by-one-error:
8564 Its depth (which was not part of the external interface)
8565 was actually counting the number of certificates in a chain;
8566 now it really counts the depth.
8569 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8570 instead of X509err, which often resulted in confusing error
8571 messages since the error codes are not globally unique
8572 (e.g. an alleged error in ssl3_accept when a certificate
8573 didn't match the private key).
8575 *) New function SSL_CTX_set_session_id_context that allows to set a default
8576 value (so that you don't need SSL_set_session_id_context for each
8577 connection using the SSL_CTX).
8580 *) OAEP decoding bug fix.
8583 *) Support INSTALL_PREFIX for package builders, as proposed by
8587 *) New Configure options "threads" and "no-threads". For systems
8588 where the proper compiler options are known (currently Solaris
8589 and Linux), "threads" is the default.
8592 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8595 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8596 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8597 such as /usr/local/bin.
8600 *) "make linux-shared" to build shared libraries.
8601 [Niels Poppe <niels@netbox.org>]
8603 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8606 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8607 extension adding in x509 utility.
8610 *) Remove NOPROTO sections and error code comments.
8613 *) Partial rewrite of the DEF file generator to now parse the ANSI
8617 *) New Configure options --prefix=DIR and --openssldir=DIR.
8620 *) Complete rewrite of the error code script(s). It is all now handled
8621 by one script at the top level which handles error code gathering,
8622 header rewriting and C source file generation. It should be much better
8623 than the old method: it now uses a modified version of Ulf's parser to
8624 read the ANSI prototypes in all header files (thus the old K&R definitions
8625 aren't needed for error creation any more) and do a better job of
8626 translating function codes into names. The old 'ASN1 error code imbedded
8627 in a comment' is no longer necessary and it doesn't use .err files which
8628 have now been deleted. Also the error code call doesn't have to appear all
8629 on one line (which resulted in some large lines...).
8632 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8635 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8636 0 (which usually indicates a closed connection), but continue reading.
8639 *) Fix some race conditions.
8642 *) Add support for CRL distribution points extension. Add Certificate
8643 Policies and CRL distribution points documentation.
8646 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8649 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8650 8 of keying material. Merlin has also confirmed interop with this fix
8651 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8652 [Merlin Hughes <merlin@baltimore.ie>]
8654 *) Fix lots of warnings.
8655 [Richard Levitte <levitte@stacken.kth.se>]
8657 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8658 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8659 [Richard Levitte <levitte@stacken.kth.se>]
8661 *) Fix problems with sizeof(long) == 8.
8662 [Andy Polyakov <appro@fy.chalmers.se>]
8664 *) Change functions to ANSI C.
8667 *) Fix typos in error codes.
8668 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8670 *) Remove defunct assembler files from Configure.
8673 *) SPARC v8 assembler BIGNUM implementation.
8674 [Andy Polyakov <appro@fy.chalmers.se>]
8676 *) Support for Certificate Policies extension: both print and set.
8677 Various additions to support the r2i method this uses.
8680 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8681 return a const string when you are expecting an allocated buffer.
8684 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8685 types DirectoryString and DisplayText.
8688 *) Add code to allow r2i extensions to access the configuration database,
8689 add an LHASH database driver and add several ctx helper functions.
8692 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8693 fail when they extended the size of a BIGNUM.
8696 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8697 support typesafe stack.
8700 *) Fix typo in SSL_[gs]et_options().
8701 [Nils Frostberg <nils@medcom.se>]
8703 *) Delete various functions and files that belonged to the (now obsolete)
8704 old X509V3 handling code.
8707 *) New Configure option "rsaref".
8710 *) Don't auto-generate pem.h.
8713 *) Introduce type-safe ASN.1 SETs.
8716 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8717 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8719 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8720 that links with OpenSSL (well at least cause lots of warnings), but fear
8721 not: the conversion is trivial, and it eliminates loads of evil casts. A
8722 few STACKed things have been converted already. Feel free to convert more.
8723 In the fullness of time, I'll do away with the STACK type altogether.
8726 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8727 specified in <certfile> by updating the entry in the index.txt file.
8728 This way one no longer has to edit the index.txt file manually for
8729 revoking a certificate. The -revoke option does the gory details now.
8730 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8732 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8733 `-text' option at all and this way the `-noout -text' combination was
8734 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8735 [Ralf S. Engelschall]
8737 *) Make sure a corresponding plain text error message exists for the
8738 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8739 verify callback function determined that a certificate was revoked.
8740 [Ralf S. Engelschall]
8742 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8743 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8744 all available cipers including rc5, which was forgotten until now.
8745 In order to let the testing shell script know which algorithms
8746 are available, a new (up to now undocumented) command
8747 "openssl list-cipher-commands" is used.
8750 *) Bugfix: s_client occasionally would sleep in select() when
8751 it should have checked SSL_pending() first.
8754 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8755 the raw DSA values prior to ASN.1 encoding.
8758 *) Tweaks to Configure
8759 [Niels Poppe <niels@netbox.org>]
8761 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8765 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8768 *) New config option to avoid instructions that are illegal on the 80386.
8769 The default code is faster, but requires at least a 486.
8772 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8773 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8774 same as SSL2_VERSION anyway.
8777 *) New "-showcerts" option for s_client.
8780 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8781 application. Various cleanups and fixes.
8784 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8785 modify error routines to work internally. Add error codes and PBE init
8786 to library startup routines.
8789 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8790 packing functions to asn1 and evp. Changed function names and error
8791 codes along the way.
8794 *) PKCS12 integration: and so it begins... First of several patches to
8795 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8796 objects to objects.h
8799 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8800 and display support for Thawte strong extranet extension.
8803 *) Add LinuxPPC support.
8804 [Jeff Dubrule <igor@pobox.org>]
8806 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8807 bn_div_words in alpha.s.
8808 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8810 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8811 OAEP isn't supported when OpenSSL is built with RSAref.
8812 [Ulf Moeller <ulf@fitug.de>]
8814 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8815 so they no longer are missing under -DNOPROTO.
8816 [Soren S. Jorvang <soren@t.dk>]
8819 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8821 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8822 doesn't work when the session is reused. Coming soon!
8825 *) Fix a security hole, that allows sessions to be reused in the wrong
8826 context thus bypassing client cert protection! All software that uses
8827 client certs and session caches in multiple contexts NEEDS PATCHING to
8828 allow session reuse! A fuller solution is in the works.
8829 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8831 *) Some more source tree cleanups (removed obsolete files
8832 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8833 permission on "config" script to be executable) and a fix for the INSTALL
8835 [Ulf Moeller <ulf@fitug.de>]
8837 *) Remove some legacy and erroneous uses of malloc, free instead of
8839 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8841 *) Make rsa_oaep_test return non-zero on error.
8842 [Ulf Moeller <ulf@fitug.de>]
8844 *) Add support for native Solaris shared libraries. Configure
8845 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8846 if someone would make that last step automatic.
8847 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8849 *) ctx_size was not built with the right compiler during "make links". Fixed.
8852 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8853 except NULL ciphers". This means the default cipher list will no longer
8854 enable NULL ciphers. They need to be specifically enabled e.g. with
8855 the string "DEFAULT:eNULL".
8858 *) Fix to RSA private encryption routines: if p < q then it would
8859 occasionally produce an invalid result. This will only happen with
8860 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8863 *) Be less restrictive and allow also `perl util/perlpath.pl
8864 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8865 because this way one can also use an interpreter named `perl5' (which is
8866 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8867 installed as `perl').
8868 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8870 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8871 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8873 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8874 advapi32.lib to Win32 build and change the pem test comparision
8875 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8876 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8877 and crypto/des/ede_cbcm_enc.c.
8880 *) DES quad checksum was broken on big-endian architectures. Fixed.
8883 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8884 Win32 test batch file so it (might) work again. The Win32 test batch file
8885 is horrible: I feel ill....
8888 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8889 in e_os.h. Audit of header files to check ANSI and non ANSI
8890 sections: 10 functions were absent from non ANSI section and not exported
8891 from Windows DLLs. Fixed up libeay.num for new functions.
8894 *) Make `openssl version' output lines consistent.
8895 [Ralf S. Engelschall]
8897 *) Fix Win32 symbol export lists for BIO functions: Added
8898 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8899 to ms/libeay{16,32}.def.
8900 [Ralf S. Engelschall]
8902 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8903 fine under Unix and passes some trivial tests I've now added. But the
8904 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8905 added to make sure no one expects that this stuff really works in the
8906 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8907 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8909 [Ralf S. Engelschall]
8911 *) Fix the generation of two part addresses in perl.
8912 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8914 *) Add config entry for Linux on MIPS.
8915 [John Tobey <jtobey@channel1.com>]
8917 *) Make links whenever Configure is run, unless we are on Windoze.
8920 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8921 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8925 *) Add a useful kludge to allow package maintainers to specify compiler and
8926 other platforms details on the command line without having to patch the
8927 Configure script everytime: One now can use ``perl Configure
8928 <id>:<details>'', i.e. platform ids are allowed to have details appended
8929 to them (seperated by colons). This is treated as there would be a static
8930 pre-configured entry in Configure's %table under key <id> with value
8931 <details> and ``perl Configure <id>'' is called. So, when you want to
8932 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8933 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8934 now, which overrides the FreeBSD-elf entry on-the-fly.
8935 [Ralf S. Engelschall]
8937 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8940 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8941 on the `perl Configure ...' command line. This way one can compile
8942 OpenSSL libraries with Position Independent Code (PIC) which is needed
8943 for linking it into DSOs.
8944 [Ralf S. Engelschall]
8946 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8950 *) Cleaned up the LICENSE document: The official contact for any license
8951 questions now is the OpenSSL core team under openssl-core@openssl.org.
8952 And add a paragraph about the dual-license situation to make sure people
8953 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8954 to the OpenSSL toolkit.
8955 [Ralf S. Engelschall]
8957 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8958 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8959 Additonally cleaned up the `make links' target: Remove unnecessary
8960 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8961 to speed processing and no longer clutter the display with confusing
8962 stuff. Instead only the actually done links are displayed.
8963 [Ralf S. Engelschall]
8965 *) Permit null encryption ciphersuites, used for authentication only. It used
8966 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8967 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8971 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8972 signed attributes when verifying signatures (this would break them),
8973 the detached data encoding was wrong and public keys obtained using
8974 X509_get_pubkey() weren't freed.
8977 *) Add text documentation for the BUFFER functions. Also added a work around
8978 to a Win95 console bug. This was triggered by the password read stuff: the
8979 last character typed gets carried over to the next fread(). If you were
8980 generating a new cert request using 'req' for example then the last
8981 character of the passphrase would be CR which would then enter the first
8985 *) Added the new `Includes OpenSSL Cryptography Software' button as
8986 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8987 button and can be used by applications based on OpenSSL to show the
8988 relationship to the OpenSSL project.
8989 [Ralf S. Engelschall]
8991 *) Remove confusing variables in function signatures in files
8992 ssl/ssl_lib.c and ssl/ssl.h.
8993 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8995 *) Don't install bss_file.c under PREFIX/include/
8996 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8998 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8999 functions that return function pointers and has support for NT specific
9000 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9001 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9002 unsigned to signed types: this was killing the Win32 compile.
9005 *) Add new certificate file to stack functions,
9006 SSL_add_dir_cert_subjects_to_stack() and
9007 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9008 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9009 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9010 This means that Apache-SSL and similar packages don't have to mess around
9011 to add as many CAs as they want to the preferred list.
9014 *) Experiment with doxygen documentation. Currently only partially applied to
9016 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9017 openssl.doxy as the configuration file.
9020 *) Get rid of remaining C++-style comments which strict C compilers hate.
9021 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9023 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9024 compiled in by default: it has problems with large keys.
9027 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9028 DH private keys and/or callback functions which directly correspond to
9029 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9030 is needed for applications which have to configure certificates on a
9031 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9033 For the RSA certificate situation is makes no difference, but
9034 for the DSA certificate situation this fixes the "no shared cipher"
9035 problem where the OpenSSL cipher selection procedure failed because the
9036 temporary keys were not overtaken from the context and the API provided
9037 no way to reconfigure them.
9038 The new functions now let applications reconfigure the stuff and they
9039 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9040 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9041 non-public-API function ssl_cert_instantiate() is used as a helper
9042 function and also to reduce code redundancy inside ssl_rsa.c.
9043 [Ralf S. Engelschall]
9045 *) Move s_server -dcert and -dkey options out of the undocumented feature
9046 area because they are useful for the DSA situation and should be
9047 recognized by the users.
9048 [Ralf S. Engelschall]
9050 *) Fix the cipher decision scheme for export ciphers: the export bits are
9051 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9052 SSL_EXP_MASK. So, the original variable has to be used instead of the
9053 already masked variable.
9054 [Richard Levitte <levitte@stacken.kth.se>]
9056 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9057 [Richard Levitte <levitte@stacken.kth.se>]
9059 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9060 from `int' to `unsigned int' because it's a length and initialized by
9061 EVP_DigestFinal() which expects an `unsigned int *'.
9062 [Richard Levitte <levitte@stacken.kth.se>]
9064 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9065 script. Instead use the usual Shell->Perl transition trick.
9066 [Ralf S. Engelschall]
9068 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9069 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9070 -noout -modulus' as it's already the case for `openssl rsa -noout
9071 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9072 currently the public key is printed (a decision which was already done by
9073 `openssl dsa -modulus' in the past) which serves a similar purpose.
9074 Additionally the NO_RSA no longer completely removes the whole -modulus
9075 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9077 [Ralf S. Engelschall]
9079 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9080 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9081 [Arne Ansper <arne@ats.cyber.ee>]
9083 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9084 to be added. Now both 'req' and 'ca' can use new objects defined in the
9088 *) Add cool BIO that does syslog (or event log on NT).
9089 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9091 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9092 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9093 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9094 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9097 *) Add preliminary config info for new extension code.
9100 *) Make RSA_NO_PADDING really use no padding.
9101 [Ulf Moeller <ulf@fitug.de>]
9103 *) Generate errors when private/public key check is done.
9106 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9107 for some CRL extensions and new objects added.
9110 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9111 key usage extension and fuller support for authority key id.
9114 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9115 padding method for RSA, which is recommended for new applications in PKCS
9116 #1 v2.0 (RFC 2437, October 1998).
9117 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9118 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9119 against Bleichbacher's attack on RSA.
9120 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9123 *) Updates to the new SSL compression code
9124 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9126 *) Fix so that the version number in the master secret, when passed
9127 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9128 (because the server will not accept higher), that the version number
9129 is 0x03,0x01, not 0x03,0x00
9130 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9132 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9133 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9134 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9137 *) Support for RAW extensions where an arbitrary extension can be
9138 created by including its DER encoding. See apps/openssl.cnf for
9142 *) Make sure latest Perl versions don't interpret some generated C array
9143 code as Perl array code in the crypto/err/err_genc.pl script.
9144 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9146 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9147 not many people have the assembler. Various Win32 compilation fixes and
9148 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9152 *) Modify configure script 'Configure' to automatically create crypto/date.h
9153 file under Win32 and also build pem.h from pem.org. New script
9154 util/mkfiles.pl to create the MINFO file on environments that can't do a
9155 'make files': perl util/mkfiles.pl >MINFO should work.
9158 *) Major rework of DES function declarations, in the pursuit of correctness
9159 and purity. As a result, many evil casts evaporated, and some weirdness,
9160 too. You may find this causes warnings in your code. Zapping your evil
9161 casts will probably fix them. Mostly.
9164 *) Fix for a typo in asn1.h. Bug fix to object creation script
9165 obj_dat.pl. It considered a zero in an object definition to mean
9166 "end of object": none of the objects in objects.h have any zeros
9167 so it wasn't spotted.
9168 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9170 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9171 Masking (CBCM). In the absence of test vectors, the best I have been able
9172 to do is check that the decrypt undoes the encrypt, so far. Send me test
9173 vectors if you have them.
9176 *) Correct calculation of key length for export ciphers (too much space was
9177 allocated for null ciphers). This has not been tested!
9180 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9181 message is now correct (it understands "crypto" and "ssl" on its
9182 command line). There is also now an "update" option. This will update
9183 the util/ssleay.num and util/libeay.num files with any new functions.
9185 perl util/mkdef.pl crypto ssl update
9186 it will update them.
9189 *) Overhauled the Perl interface (perl/*):
9190 - ported BN stuff to OpenSSL's different BN library
9191 - made the perl/ source tree CVS-aware
9192 - renamed the package from SSLeay to OpenSSL (the files still contain
9193 their history because I've copied them in the repository)
9194 - removed obsolete files (the test scripts will be replaced
9195 by better Test::Harness variants in the future)
9196 [Ralf S. Engelschall]
9198 *) First cut for a very conservative source tree cleanup:
9199 1. merge various obsolete readme texts into doc/ssleay.txt
9200 where we collect the old documents and readme texts.
9201 2. remove the first part of files where I'm already sure that we no
9202 longer need them because of three reasons: either they are just temporary
9203 files which were left by Eric or they are preserved original files where
9204 I've verified that the diff is also available in the CVS via "cvs diff
9205 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9206 the crypto/md/ stuff).
9207 [Ralf S. Engelschall]
9209 *) More extension code. Incomplete support for subject and issuer alt
9210 name, issuer and authority key id. Change the i2v function parameters
9211 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9212 what that's for :-) Fix to ASN1 macro which messed up
9213 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9216 *) Preliminary support for ENUMERATED type. This is largely copied from the
9220 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9221 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9223 *) Make sure `make rehash' target really finds the `openssl' program.
9224 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9226 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9227 like to hear about it if this slows down other processors.
9230 *) Add CygWin32 platform information to Configure script.
9231 [Alan Batie <batie@aahz.jf.intel.com>]
9233 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9234 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9236 *) New program nseq to manipulate netscape certificate sequences
9239 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9243 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9244 but the BN code had some problems that would cause failures when
9245 doing certificate verification and some other functions.
9246 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9248 *) Add ASN1 and PEM code to support netscape certificate sequences.
9251 *) Add ASN1 and PEM code to support netscape certificate sequences.
9254 *) Add several PKIX and private extended key usage OIDs.
9257 *) Modify the 'ca' program to handle the new extension code. Modify
9258 openssl.cnf for new extension format, add comments.
9261 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9262 and add a sample to openssl.cnf so req -x509 now adds appropriate
9266 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9267 error code, add initial support to X509_print() and x509 application.
9270 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9271 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9272 stuff is currently isolated and isn't even compiled yet.
9275 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9276 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9277 Removed the versions check from X509 routines when loading extensions:
9278 this allows certain broken certificates that don't set the version
9279 properly to be processed.
9282 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9283 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9284 can still be regenerated with "make depend".
9287 *) Spelling mistake in C version of CAST-128.
9288 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9290 *) Changes to the error generation code. The perl script err-code.pl
9291 now reads in the old error codes and retains the old numbers, only
9292 adding new ones if necessary. It also only changes the .err files if new
9293 codes are added. The makefiles have been modified to only insert errors
9294 when needed (to avoid needlessly modifying header files). This is done
9295 by only inserting errors if the .err file is newer than the auto generated
9296 C file. To rebuild all the error codes from scratch (the old behaviour)
9297 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9298 or delete all the .err files.
9301 *) CAST-128 was incorrectly implemented for short keys. The C version has
9302 been fixed, but is untested. The assembler versions are also fixed, but
9303 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9304 to regenerate it if needed.
9305 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9306 Hagino <itojun@kame.net>]
9308 *) File was opened incorrectly in randfile.c.
9309 [Ulf Möller <ulf@fitug.de>]
9311 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9312 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9313 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9314 al: it's just almost always a UTCTime. Note this patch adds new error
9315 codes so do a "make errors" if there are problems.
9318 *) Correct Linux 1 recognition in config.
9319 [Ulf Möller <ulf@fitug.de>]
9321 *) Remove pointless MD5 hash when using DSA keys in ca.
9322 [Anonymous <nobody@replay.com>]
9324 *) Generate an error if given an empty string as a cert directory. Also
9325 generate an error if handed NULL (previously returned 0 to indicate an
9326 error, but didn't set one).
9327 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9329 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9332 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9333 parameters. This was causing a warning which killed off the Win32 compile.
9336 *) Remove C++ style comments from crypto/bn/bn_local.h.
9337 [Neil Costigan <neil.costigan@celocom.com>]
9339 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9340 based on a text string, looking up short and long names and finally
9341 "dot" format. The "dot" format stuff didn't work. Added new function
9342 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9343 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9344 OID is not part of the table.
9347 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9348 X509_LOOKUP_by_alias().
9351 *) Sort openssl functions by name.
9354 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9355 encryption from sample DSA keys (in case anyone is interested the password
9359 *) Make _all_ *_free functions accept a NULL pointer.
9360 [Frans Heymans <fheymans@isaserver.be>]
9362 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9364 [Anonymous <nobody@replay.com>]
9366 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9367 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9369 *) Don't blow it for numeric -newkey arguments to apps/req.
9370 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9372 *) Temp key "for export" tests were wrong in s3_srvr.c.
9373 [Anonymous <nobody@replay.com>]
9375 *) Add prototype for temp key callback functions
9376 SSL_CTX_set_tmp_{rsa,dh}_callback().
9379 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9380 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9383 *) X509_name_add_entry() freed the wrong thing after an error.
9384 [Arne Ansper <arne@ats.cyber.ee>]
9386 *) rsa_eay.c would attempt to free a NULL context.
9387 [Arne Ansper <arne@ats.cyber.ee>]
9389 *) BIO_s_socket() had a broken should_retry() on Windoze.
9390 [Arne Ansper <arne@ats.cyber.ee>]
9392 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9393 [Arne Ansper <arne@ats.cyber.ee>]
9395 *) Make sure the already existing X509_STORE->depth variable is initialized
9396 in X509_STORE_new(), but document the fact that this variable is still
9397 unused in the certificate verification process.
9398 [Ralf S. Engelschall]
9400 *) Fix the various library and apps files to free up pkeys obtained from
9401 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9404 *) Fix reference counting in X509_PUBKEY_get(). This makes
9405 demos/maurice/example2.c work, amongst others, probably.
9406 [Steve Henson and Ben Laurie]
9408 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9409 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9410 are no longer created. This way we have a single and consistent command
9411 line interface `openssl <command>', similar to `cvs <command>'.
9412 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9414 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9415 BIT STRING wrapper always have zero unused bits.
9418 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9421 *) Make the top-level INSTALL documentation easier to understand.
9424 *) Makefiles updated to exit if an error occurs in a sub-directory
9425 make (including if user presses ^C) [Paul Sutton]
9427 *) Make Montgomery context stuff explicit in RSA data structure.
9430 *) Fix build order of pem and err to allow for generated pem.h.
9433 *) Fix renumbering bug in X509_NAME_delete_entry().
9436 *) Enhanced the err-ins.pl script so it makes the error library number
9437 global and can add a library name. This is needed for external ASN1 and
9438 other error libraries.
9441 *) Fixed sk_insert which never worked properly.
9444 *) Fix ASN1 macros so they can handle indefinite length construted
9445 EXPLICIT tags. Some non standard certificates use these: they can now
9449 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9450 into a single doc/ssleay.txt bundle. This way the information is still
9451 preserved but no longer messes up this directory. Now it's new room for
9452 the new set of documenation files.
9453 [Ralf S. Engelschall]
9455 *) SETs were incorrectly DER encoded. This was a major pain, because they
9456 shared code with SEQUENCEs, which aren't coded the same. This means that
9457 almost everything to do with SETs or SEQUENCEs has either changed name or
9458 number of arguments.
9459 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9461 *) Fix test data to work with the above.
9464 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9465 was already fixed by Eric for 0.9.1 it seems.
9466 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9468 *) Autodetect FreeBSD3.
9471 *) Fix various bugs in Configure. This affects the following platforms:
9475 unixware-2.0-pentium
9479 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9480 before they are needed.
9483 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9487 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9489 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9490 changed SSLeay to OpenSSL in version strings.
9491 [Ralf S. Engelschall]
9493 *) Some fixups to the top-level documents.
9496 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9497 because the symlink to include/ was missing.
9498 [Ralf S. Engelschall]
9500 *) Incorporated the popular no-RSA/DSA-only patches
9501 which allow to compile a RSA-free SSLeay.
9502 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9504 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9505 when "ssleay" is still not found.
9506 [Ralf S. Engelschall]
9508 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9509 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9511 *) Updated the README file.
9512 [Ralf S. Engelschall]
9514 *) Added various .cvsignore files in the CVS repository subdirs
9515 to make a "cvs update" really silent.
9516 [Ralf S. Engelschall]
9518 *) Recompiled the error-definition header files and added
9519 missing symbols to the Win32 linker tables.
9520 [Ralf S. Engelschall]
9522 *) Cleaned up the top-level documents;
9523 o new files: CHANGES and LICENSE
9524 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9525 o merged COPYRIGHT into LICENSE
9526 o removed obsolete TODO file
9527 o renamed MICROSOFT to INSTALL.W32
9528 [Ralf S. Engelschall]
9530 *) Removed dummy files from the 0.9.1b source tree:
9531 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9532 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9533 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9534 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9535 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9536 [Ralf S. Engelschall]
9538 *) Added various platform portability fixes.
9541 *) The Genesis of the OpenSSL rpject:
9542 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9543 Young and Tim J. Hudson created while they were working for C2Net until
9545 [The OpenSSL Project]
9548 Changes between 0.9.0b and 0.9.1b [not released]
9550 *) Updated a few CA certificates under certs/
9553 *) Changed some BIGNUM api stuff.
9556 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9557 DGUX x86, Linux Alpha, etc.
9560 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9561 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9565 *) Add -strparse option to asn1pars program which parses nested
9567 [Dr Stephen Henson <shenson@bigfoot.com>]
9569 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9572 *) DSA fix for "ca" program.
9575 *) Added "-genkey" option to "dsaparam" program.
9578 *) Added RIPE MD160 (rmd160) message digest.
9581 *) Added -a (all) option to "ssleay version" command.
9584 *) Added PLATFORM define which is the id given to Configure.
9587 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9590 *) Extended the ASN.1 parser routines.
9593 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9596 *) Added a BN_CTX to the BN library.
9599 *) Fixed the weak key values in DES library
9602 *) Changed API in EVP library for cipher aliases.
9605 *) Added support for RC2/64bit cipher.
9608 *) Converted the lhash library to the crypto/mem.c functions.
9611 *) Added more recognized ASN.1 object ids.
9614 *) Added more RSA padding checks for SSL/TLS.
9617 *) Added BIO proxy/filter functionality.
9620 *) Added extra_certs to SSL_CTX which can be used
9621 send extra CA certificates to the client in the CA cert chain sending
9622 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9625 *) Now Fortezza is denied in the authentication phase because
9626 this is key exchange mechanism is not supported by SSLeay at all.
9629 *) Additional PKCS1 checks.
9632 *) Support the string "TLSv1" for all TLS v1 ciphers.
9635 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9636 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9639 *) Fixed a few memory leaks.
9642 *) Fixed various code and comment typos.
9645 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9646 bytes sent in the client random.
9647 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob