5 Changes between 1.0.0a and 1.0.1 [xx XXX xxxx]
7 *) Permit abbreviated handshakes when renegotiating using the function
8 SSL_renegotiate_abbreviated().
9 [Robin Seggelmann <seggelmann@fh-muenster.de>]
11 *) Add call to ENGINE_register_all_complete() to
12 ENGINE_load_builtin_engines(), so some implementations get used
13 automatically instead of needing explicit application support.
16 *) Add support for TLS key exporter as described in RFC5705.
17 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
19 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
20 a few changes are required:
22 Add SSL_OP_NO_TLSv1_1 flag.
24 Update version checking logic to handle version 1.1.
25 Add explicit IV handling (ported from DTLS code).
26 Add command line options to s_client/s_server.
29 Changes between 1.0.0a and 1.0.0b [xx XXX xxxx]
31 *) Fix WIN32 build system to correctly link an ENGINE directory into
35 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
37 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
39 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
41 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
43 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
44 context. The operation can be customised via the ctrl mechanism in
45 case ENGINEs want to include additional functionality.
48 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
51 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
52 output hashes compatible with older versions of OpenSSL.
53 [Willy Weisz <weisz@vcpc.univie.ac.at>]
55 *) Fix compression algorithm handling: if resuming a session use the
56 compression algorithm of the resumed session instead of determining
57 it from client hello again. Don't allow server to change algorithm.
60 *) Add load_crls() function to apps tidying load_certs() too. Add option
61 to verify utility to allow additional CRLs to be included.
64 *) Update OCSP request code to permit adding custom headers to the request:
65 some responders need this.
68 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
70 [Julia Lawall <julia@diku.dk>]
72 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
73 needlessly dereferenced structures, used obsolete functions and
74 didn't handle all updated verify codes correctly.
77 *) Disable MD2 in the default configuration.
80 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
81 indicate the initial BIO being pushed or popped. This makes it possible
82 to determine whether the BIO is the one explicitly called or as a result
83 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
84 it handles reference counts correctly and doesn't zero out the I/O bio
85 when it is not being explicitly popped. WARNING: applications which
86 included workarounds for the old buggy behaviour will need to be modified
87 or they could free up already freed BIOs.
90 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
91 renaming to all platforms (within the 0.9.8 branch, this was
92 done conditionally on Netware platforms to avoid a name clash).
93 [Guenter <lists@gknw.net>]
95 *) Add ECDHE and PSK support to DTLS.
96 [Michael Tuexen <tuexen@fh-muenster.de>]
98 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
102 *) Add "missing" function EVP_MD_flags() (without this the only way to
103 retrieve a digest flags is by accessing the structure directly. Update
104 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
105 or cipher is registered as in the "from" argument. Print out all
106 registered digests in the dgst usage message instead of manually
107 attempting to work them out.
110 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
111 this allows the use of compression and extensions. Change default cipher
112 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
113 by default unless an application cipher string requests it.
116 *) Alter match criteria in PKCS12_parse(). It used to try to use local
117 key ids to find matching certificates and keys but some PKCS#12 files
118 don't follow the (somewhat unwritten) rules and this strategy fails.
119 Now just gather all certificates together and the first private key
120 then look for the first certificate that matches the key.
123 *) Support use of registered digest and cipher names for dgst and cipher
124 commands instead of having to add each one as a special case. So now
131 openssl dgst -sha256 foo
133 and this works for ENGINE based algorithms too.
137 *) Update Gost ENGINE to support parameter files.
138 [Victor B. Wagner <vitus@cryptocom.ru>]
140 *) Support GeneralizedTime in ca utility.
141 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
143 *) Enhance the hash format used for certificate directory links. The new
144 form uses the canonical encoding (meaning equivalent names will work
145 even if they aren't identical) and uses SHA1 instead of MD5. This form
146 is incompatible with the older format and as a result c_rehash should
147 be used to rebuild symbolic links.
150 *) Make PKCS#8 the default write format for private keys, replacing the
151 traditional format. This form is standardised, more secure and doesn't
152 include an implicit MD5 dependency.
155 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
156 committed to OpenSSL should pass this lot as a minimum.
159 *) Add session ticket override functionality for use by EAP-FAST.
160 [Jouni Malinen <j@w1.fi>]
162 *) Modify HMAC functions to return a value. Since these can be implemented
163 in an ENGINE errors can occur.
166 *) Type-checked OBJ_bsearch_ex.
169 *) Type-checked OBJ_bsearch. Also some constification necessitated
170 by type-checking. Still to come: TXT_DB, bsearch(?),
171 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
175 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
176 seconds to a tm structure directly, instead of going through OS
177 specific date routines. This avoids any issues with OS routines such
178 as the year 2038 bug. New *_adj() functions for ASN1 time structures
179 and X509_time_adj_ex() to cover the extended range. The existing
180 X509_time_adj() is still usable and will no longer have any date issues.
183 *) Delta CRL support. New use deltas option which will attempt to locate
184 and search any appropriate delta CRLs available.
186 This work was sponsored by Google.
189 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
190 code and add additional score elements. Validate alternate CRL paths
191 as part of the CRL checking and indicate a new error "CRL path validation
192 error" in this case. Applications wanting additional details can use
193 the verify callback and check the new "parent" field. If this is not
194 NULL CRL path validation is taking place. Existing applications wont
195 see this because it requires extended CRL support which is off by
198 This work was sponsored by Google.
201 *) Support for freshest CRL extension.
203 This work was sponsored by Google.
206 *) Initial indirect CRL support. Currently only supported in the CRLs
207 passed directly and not via lookup. Process certificate issuer
208 CRL entry extension and lookup CRL entries by bother issuer name
209 and serial number. Check and process CRL issuer entry in IDP extension.
211 This work was sponsored by Google.
214 *) Add support for distinct certificate and CRL paths. The CRL issuer
215 certificate is validated separately in this case. Only enabled if
216 an extended CRL support flag is set: this flag will enable additional
217 CRL functionality in future.
219 This work was sponsored by Google.
222 *) Add support for policy mappings extension.
224 This work was sponsored by Google.
227 *) Fixes to pathlength constraint, self issued certificate handling,
228 policy processing to align with RFC3280 and PKITS tests.
230 This work was sponsored by Google.
233 *) Support for name constraints certificate extension. DN, email, DNS
234 and URI types are currently supported.
236 This work was sponsored by Google.
239 *) To cater for systems that provide a pointer-based thread ID rather
240 than numeric, deprecate the current numeric thread ID mechanism and
241 replace it with a structure and associated callback type. This
242 mechanism allows a numeric "hash" to be extracted from a thread ID in
243 either case, and on platforms where pointers are larger than 'long',
244 mixing is done to help ensure the numeric 'hash' is usable even if it
245 can't be guaranteed unique. The default mechanism is to use "&errno"
246 as a pointer-based thread ID to distinguish between threads.
248 Applications that want to provide their own thread IDs should now use
249 CRYPTO_THREADID_set_callback() to register a callback that will call
250 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
252 Note that ERR_remove_state() is now deprecated, because it is tied
253 to the assumption that thread IDs are numeric. ERR_remove_state(0)
254 to free the current thread's error state should be replaced by
255 ERR_remove_thread_state(NULL).
257 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
258 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
259 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
260 application was previously providing a numeric thread callback that
261 was inappropriate for distinguishing threads, then uniqueness might
262 have been obtained with &errno that happened immediately in the
263 intermediate development versions of OpenSSL; this is no longer the
264 case, the numeric thread callback will now override the automatic use
266 [Geoff Thorpe, with help from Bodo Moeller]
268 *) Initial support for different CRL issuing certificates. This covers a
269 simple case where the self issued certificates in the chain exist and
270 the real CRL issuer is higher in the existing chain.
272 This work was sponsored by Google.
275 *) Removed effectively defunct crypto/store from the build.
278 *) Revamp of STACK to provide stronger type-checking. Still to come:
279 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
280 ASN1_STRING, CONF_VALUE.
283 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
284 RAM on SSL connections. This option can save about 34k per idle SSL.
287 *) Revamp of LHASH to provide stronger type-checking. Still to come:
288 STACK, TXT_DB, bsearch, qsort.
291 *) Initial support for Cryptographic Message Syntax (aka CMS) based
292 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
293 support for data, signedData, compressedData, digestedData and
294 encryptedData, envelopedData types included. Scripts to check against
295 RFC4134 examples draft and interop and consistency checks of many
296 content types and variants.
299 *) Add options to enc utility to support use of zlib compression BIO.
302 *) Extend mk1mf to support importing of options and assembly language
303 files from Configure script, currently only included in VC-WIN32.
304 The assembly language rules can now optionally generate the source
305 files from the associated perl scripts.
308 *) Implement remaining functionality needed to support GOST ciphersuites.
309 Interop testing has been performed using CryptoPro implementations.
310 [Victor B. Wagner <vitus@cryptocom.ru>]
312 *) s390x assembler pack.
315 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
319 *) Implement Opaque PRF Input TLS extension as specified in
320 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
321 official specification yet and no extension type assignment by
322 IANA exists, this extension (for now) will have to be explicitly
323 enabled when building OpenSSL by providing the extension number
324 to use. For example, specify an option
326 -DTLSEXT_TYPE_opaque_prf_input=0x9527
328 to the "config" or "Configure" script to enable the extension,
329 assuming extension number 0x9527 (which is a completely arbitrary
330 and unofficial assignment based on the MD5 hash of the Internet
331 Draft). Note that by doing so, you potentially lose
332 interoperability with other TLS implementations since these might
333 be using the same extension number for other purposes.
335 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
336 opaque PRF input value to use in the handshake. This will create
337 an interal copy of the length-'len' string at 'src', and will
338 return non-zero for success.
340 To get more control and flexibility, provide a callback function
343 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
344 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
348 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
351 Callback function 'cb' will be called in handshakes, and is
352 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
353 Argument 'arg' is for application purposes (the value as given to
354 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
355 be provided to the callback function). The callback function
356 has to return non-zero to report success: usually 1 to use opaque
357 PRF input just if possible, or 2 to enforce use of the opaque PRF
358 input. In the latter case, the library will abort the handshake
359 if opaque PRF input is not successfully negotiated.
361 Arguments 'peerinput' and 'len' given to the callback function
362 will always be NULL and 0 in the case of a client. A server will
363 see the client's opaque PRF input through these variables if
364 available (NULL and 0 otherwise). Note that if the server
365 provides an opaque PRF input, the length must be the same as the
366 length of the client's opaque PRF input.
368 Note that the callback function will only be called when creating
369 a new session (session resumption can resume whatever was
370 previously negotiated), and will not be called in SSL 2.0
371 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
372 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
373 for applications that need to enforce opaque PRF input.
377 *) Update ssl code to support digests other than SHA1+MD5 for handshake
380 [Victor B. Wagner <vitus@cryptocom.ru>]
382 *) Add RFC4507 support to OpenSSL. This includes the corrections in
383 RFC4507bis. The encrypted ticket format is an encrypted encoded
384 SSL_SESSION structure, that way new session features are automatically
387 If a client application caches session in an SSL_SESSION structure
388 support is transparent because tickets are now stored in the encoded
391 The SSL_CTX structure automatically generates keys for ticket
392 protection in servers so again support should be possible
393 with no application modification.
395 If a client or server wishes to disable RFC4507 support then the option
396 SSL_OP_NO_TICKET can be set.
398 Add a TLS extension debugging callback to allow the contents of any client
399 or server extensions to be examined.
401 This work was sponsored by Google.
404 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
405 OpenSSL should now compile cleanly on gcc 4.2
406 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
408 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
409 support including streaming MAC support: this is required for GOST
411 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
413 *) Add option -stream to use PKCS#7 streaming in smime utility. New
414 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
415 to output in BER and PEM format.
418 *) Experimental support for use of HMAC via EVP_PKEY interface. This
419 allows HMAC to be handled via the EVP_DigestSign*() interface. The
420 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
421 ENGINE support for HMAC keys which are unextractable. New -mac and
422 -macopt options to dgst utility.
425 *) New option -sigopt to dgst utility. Update dgst to use
426 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
427 alternative signing paramaters such as X9.31 or PSS in the dgst
431 *) Change ssl_cipher_apply_rule(), the internal function that does
432 the work each time a ciphersuite string requests enabling
433 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
434 removing ("!foo+bar") a class of ciphersuites: Now it maintains
435 the order of disabled ciphersuites such that those ciphersuites
436 that most recently went from enabled to disabled not only stay
437 in order with respect to each other, but also have higher priority
438 than other disabled ciphersuites the next time ciphersuites are
441 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
442 the same ciphersuites as with "HIGH" alone, but in a specific
443 order where the PSK ciphersuites come first (since they are the
444 most recently disabled ciphersuites when "HIGH" is parsed).
446 Also, change ssl_create_cipher_list() (using this new
447 funcionality) such that between otherwise identical
448 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
452 *) Change ssl_create_cipher_list() so that it automatically
453 arranges the ciphersuites in reasonable order before starting
454 to process the rule string. Thus, the definition for "DEFAULT"
455 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
456 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
457 This makes it much easier to arrive at a reasonable default order
458 in applications for which anonymous ciphers are OK (meaning
459 that you can't actually use DEFAULT).
460 [Bodo Moeller; suggested by Victor Duchovni]
462 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
463 processing) into multiple integers instead of setting
464 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
465 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
466 (These masks as well as the individual bit definitions are hidden
467 away into the non-exported interface ssl/ssl_locl.h, so this
468 change to the definition of the SSL_CIPHER structure shouldn't
469 affect applications.) This give us more bits for each of these
470 categories, so there is no longer a need to coagulate AES128 and
471 AES256 into a single algorithm bit, and to coagulate Camellia128
472 and Camellia256 into a single algorithm bit, which has led to all
475 Thus, among other things, the kludge introduced in 0.9.7m and
476 0.9.8e for masking out AES256 independently of AES128 or masking
477 out Camellia256 independently of AES256 is not needed here in 0.9.9.
479 With the change, we also introduce new ciphersuite aliases that
480 so far were missing: "AES128", "AES256", "CAMELLIA128", and
484 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
485 Use the leftmost N bytes of the signature input if the input is
486 larger than the prime q (with N being the size in bytes of q).
489 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
490 it yet and it is largely untested.
493 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
496 *) Initial incomplete changes to avoid need for function casts in OpenSSL
497 some compilers (gcc 4.2 and later) reject their use. Safestack is
498 reimplemented. Update ASN1 to avoid use of legacy functions.
501 *) Win32/64 targets are linked with Winsock2.
504 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
505 to external functions. This can be used to increase CRL handling
506 efficiency especially when CRLs are very large by (for example) storing
507 the CRL revoked certificates in a database.
510 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
511 new CRLs added to a directory can be used. New command line option
512 -verify_return_error to s_client and s_server. This causes real errors
513 to be returned by the verify callback instead of carrying on no matter
514 what. This reflects the way a "real world" verify callback would behave.
517 *) GOST engine, supporting several GOST algorithms and public key formats.
518 Kindly donated by Cryptocom.
521 *) Partial support for Issuing Distribution Point CRL extension. CRLs
522 partitioned by DP are handled but no indirect CRL or reason partitioning
523 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
524 selected via a scoring technique which handles IDP and AKID in CRLs.
527 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
528 will ultimately be used for all verify operations: this will remove the
529 X509_STORE dependency on certificate verification and allow alternative
530 lookup methods. X509_STORE based implementations of these two callbacks.
533 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
534 Modify get_crl() to find a valid (unexpired) CRL if possible.
537 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
538 this would be called X509_CRL_cmp() but that name is already used by
539 a function that just compares CRL issuer names. Cache several CRL
540 extensions in X509_CRL structure and cache CRLDP in X509.
543 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
544 this maps equivalent X509_NAME structures into a consistent structure.
545 Name comparison can then be performed rapidly using memcmp().
548 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
552 *) Allow digests to supply their own micalg string for S/MIME type using
553 the ctrl EVP_MD_CTRL_MICALG.
556 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
557 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
558 ctrl. It can then customise the structure before and/or after signing
562 *) New function OBJ_add_sigid() to allow application defined signature OIDs
563 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
564 to free up any added signature OIDs.
567 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
568 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
569 digest and cipher tables. New options added to openssl utility:
570 list-message-digest-algorithms and list-cipher-algorithms.
573 *) Change the array representation of binary polynomials: the list
574 of degrees of non-zero coefficients is now terminated with -1.
575 Previously it was terminated with 0, which was also part of the
576 value; thus, the array representation was not applicable to
577 polynomials where t^0 has coefficient zero. This change makes
578 the array representation useful in a more general context.
581 *) Various modifications and fixes to SSL/TLS cipher string
582 handling. For ECC, the code now distinguishes between fixed ECDH
583 with RSA certificates on the one hand and with ECDSA certificates
584 on the other hand, since these are separate ciphersuites. The
585 unused code for Fortezza ciphersuites has been removed.
587 For consistency with EDH, ephemeral ECDH is now called "EECDH"
588 (not "ECDHE"). For consistency with the code for DH
589 certificates, use of ECDH certificates is now considered ECDH
590 authentication, not RSA or ECDSA authentication (the latter is
591 merely the CA's signing algorithm and not actively used in the
594 The temporary ciphersuite alias "ECCdraft" is no longer
595 available, and ECC ciphersuites are no longer excluded from "ALL"
596 and "DEFAULT". The following aliases now exist for RFC 4492
597 ciphersuites, most of these by analogy with the DH case:
599 kECDHr - ECDH cert, signed with RSA
600 kECDHe - ECDH cert, signed with ECDSA
601 kECDH - ECDH cert (signed with either RSA or ECDSA)
602 kEECDH - ephemeral ECDH
603 ECDH - ECDH cert or ephemeral ECDH
609 AECDH - anonymous ECDH
610 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
614 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
615 Use correct micalg parameters depending on digest(s) in signed message.
618 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
619 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
622 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
623 an engine to register a method. Add ENGINE lookups for methods and
624 functional reference processing.
627 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
628 EVP_{Sign,Verify}* which allow an application to customise the signature
632 *) New -resign option to smime utility. This adds one or more signers
633 to an existing PKCS#7 signedData structure. Also -md option to use an
634 alternative message digest algorithm for signing.
637 *) Tidy up PKCS#7 routines and add new functions to make it easier to
638 create PKCS7 structures containing multiple signers. Update smime
639 application to support multiple signers.
642 *) New -macalg option to pkcs12 utility to allow setting of an alternative
646 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
647 Reorganize PBE internals to lookup from a static table using NIDs,
648 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
649 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
650 PRF which will be automatically used with PBES2.
653 *) Replace the algorithm specific calls to generate keys in "req" with the
657 *) Update PKCS#7 enveloped data routines to use new API. This is now
658 supported by any public key method supporting the encrypt operation. A
659 ctrl is added to allow the public key algorithm to examine or modify
660 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
664 *) Add a ctrl to asn1 method to allow a public key algorithm to express
665 a default digest type to use. In most cases this will be SHA1 but some
666 algorithms (such as GOST) need to specify an alternative digest. The
667 return value indicates how strong the prefernce is 1 means optional and
668 2 is mandatory (that is it is the only supported type). Modify
669 ASN1_item_sign() to accept a NULL digest argument to indicate it should
670 use the default md. Update openssl utilities to use the default digest
671 type for signing if it is not explicitly indicated.
674 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
675 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
676 signing method from the key type. This effectively removes the link
677 between digests and public key types.
680 *) Add an OID cross reference table and utility functions. Its purpose is to
681 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
682 rsaEncryption. This will allow some of the algorithm specific hackery
683 needed to use the correct OID to be removed.
686 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
687 structures for PKCS7_sign(). They are now set up by the relevant public
691 *) Add provisional EC pkey method with support for ECDSA and ECDH.
694 *) Add support for key derivation (agreement) in the API, DH method and
698 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
699 public and private key formats. As a side effect these add additional
700 command line functionality not previously available: DSA signatures can be
701 generated and verified using pkeyutl and DH key support and generation in
706 [Oliver Tappe <zooey@hirschkaefer.de>]
708 *) New make target "install_html_docs" installs HTML renditions of the
710 [Oliver Tappe <zooey@hirschkaefer.de>]
712 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
713 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
714 support key and parameter generation and add initial key generation
715 functionality for RSA.
718 *) Add functions for main EVP_PKEY_method operations. The undocumented
719 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
720 EVP_PKEY_{encrypt,decrypt}_old.
723 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
724 key API, doesn't do much yet.
727 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
728 public key algorithms. New option to openssl utility:
729 "list-public-key-algorithms" to print out info.
732 *) Implement the Supported Elliptic Curves Extension for
733 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
736 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
737 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
740 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
741 utilities such as rsa, dsa, dsaparam etc except they process any key
745 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
746 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
747 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
751 *) Initial support for pluggable public key ASN1.
752 De-spaghettify the public key ASN1 handling. Move public and private
753 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
754 algorithm specific handling to a single module within the relevant
755 algorithm directory. Add functions to allow (near) opaque processing
756 of public and private key structures.
759 *) Implement the Supported Point Formats Extension for
760 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
763 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
764 for the psk identity [hint] and the psk callback functions to the
765 SSL_SESSION, SSL and SSL_CTX structure.
768 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
772 SSL_CTX_use_psk_identity_hint
773 SSL_get_psk_identity_hint
775 SSL_use_psk_identity_hint
777 [Mika Kousa and Pasi Eronen of Nokia Corporation]
779 *) Add RFC 3161 compliant time stamp request creation, response generation
780 and response verification functionality.
781 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
783 *) Add initial support for TLS extensions, specifically for the server_name
784 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
785 have new members for a host name. The SSL data structure has an
786 additional member SSL_CTX *initial_ctx so that new sessions can be
787 stored in that context to allow for session resumption, even after the
788 SSL has been switched to a new SSL_CTX in reaction to a client's
789 server_name extension.
791 New functions (subject to change):
794 SSL_get_servername_type()
797 New CTRL codes and macros (subject to change):
799 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
800 - SSL_CTX_set_tlsext_servername_callback()
801 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
802 - SSL_CTX_set_tlsext_servername_arg()
803 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
805 openssl s_client has a new '-servername ...' option.
807 openssl s_server has new options '-servername_host ...', '-cert2 ...',
808 '-key2 ...', '-servername_fatal' (subject to change). This allows
809 testing the HostName extension for a specific single host name ('-cert'
810 and '-key' remain fallbacks for handshakes without HostName
811 negotiation). If the unrecogninzed_name alert has to be sent, this by
812 default is a warning; it becomes fatal with the '-servername_fatal'
815 [Peter Sylvester, Remy Allais, Christophe Renou]
817 *) Whirlpool hash implementation is added.
820 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
821 bn(64,32). Because of instruction set limitations it doesn't have
822 any negative impact on performance. This was done mostly in order
823 to make it possible to share assembler modules, such as bn_mul_mont
824 implementations, between 32- and 64-bit builds without hassle.
827 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
828 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
832 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
833 dedicated Montgomery multiplication procedure, is introduced.
834 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
835 "64-bit" performance on certain 32-bit targets.
838 *) New option SSL_OP_NO_COMP to disable use of compression selectively
839 in SSL structures. New SSL ctrl to set maximum send fragment size.
840 Save memory by seeting the I/O buffer sizes dynamically instead of
841 using the maximum available value.
844 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
845 in addition to the text details.
848 *) Very, very preliminary EXPERIMENTAL support for printing of general
849 ASN1 structures. This currently produces rather ugly output and doesn't
850 handle several customised structures at all.
853 *) Integrated support for PVK file format and some related formats such
854 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
855 these in the 'rsa' and 'dsa' utilities.
858 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
861 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
862 place for the (very old) "NETSCAPE" format certificates which are now
863 handled using new ASN1 code equivalents.
866 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
867 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
868 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
871 *) Modify CRL distribution points extension code to print out previously
872 unsupported fields. Enhance extension setting code to allow setting of
876 *) Add print and set support for Issuing Distribution Point CRL extension.
879 *) Change 'Configure' script to enable Camellia by default.
882 Changes between 0.9.8o and 0.9.8p [xx XXX xxxx]
884 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
885 is also one of the inputs.
886 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
888 *) Don't repeatedly append PBE algorithms to table if they already exist.
889 Sort table on each new add. This effectively makes the table read only
890 after all algorithms are added and subsequent calls to PKCS12_pbe_add
894 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
896 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
899 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
900 access or freeing data twice (CVE-2010-0742)
901 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
903 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
904 common in certificates and some applications which only call
905 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
909 Reduce copying into .apps and .test in makevms.com
910 Don't try to use blank CA certificate in CA.com
911 Allow use of C files from original directories in maketests.com
912 [Steven M. Schweda" <sms@antinode.info>]
914 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
916 *) When rejecting SSL/TLS records due to an incorrect version number, never
917 update s->server with a new major version number. As of
918 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
919 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
920 the previous behavior could result in a read attempt at NULL when
921 receiving specific incorrect SSL/TLS records once record payload
922 protection is active. (CVE-2010-0740)
923 [Bodo Moeller, Adam Langley <agl@chromium.org>]
925 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
926 could be crashed if the relevant tables were not present (e.g. chrooted).
927 [Tomas Hoger <thoger@redhat.com>]
929 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
931 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
932 [Martin Olsson, Neel Mehta]
934 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
935 accommodate for stack sorting, always a write lock!).
938 *) On some versions of WIN32 Heap32Next is very slow. This can cause
939 excessive delays in the RAND_poll(): over a minute. As a workaround
940 include a time check in the inner Heap32Next loop too.
943 *) The code that handled flushing of data in SSL/TLS originally used the
944 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
945 the problem outlined in PR#1949. The fix suggested there however can
946 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
947 of Apache). So instead simplify the code to flush unconditionally.
948 This should be fine since flushing with no data to flush is a no op.
951 *) Handle TLS versions 2.0 and later properly and correctly use the
952 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
953 off ancient servers have a habit of sticking around for a while...
956 *) Modify compression code so it frees up structures without using the
957 ex_data callbacks. This works around a problem where some applications
958 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
959 restarting) then use compression (e.g. SSL with compression) later.
960 This results in significant per-connection memory leaks and
961 has caused some security issues including CVE-2008-1678 and
965 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
966 change when encrypting or decrypting.
969 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
970 connect and renegotiate with servers which do not support RI.
971 Until RI is more widely deployed this option is enabled by default.
974 *) Add "missing" ssl ctrls to clear options and mode.
977 *) If client attempts to renegotiate and doesn't support RI respond with
978 a no_renegotiation alert as required by RFC5746. Some renegotiating
979 TLS clients will continue a connection gracefully when they receive
980 the alert. Unfortunately OpenSSL mishandled this alert and would hang
981 waiting for a server hello which it will never receive. Now we treat a
982 received no_renegotiation alert as a fatal error. This is because
983 applications requesting a renegotiation might well expect it to succeed
984 and would have no code in place to handle the server denying it so the
985 only safe thing to do is to terminate the connection.
988 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
989 peer supports secure renegotiation and 0 otherwise. Print out peer
990 renegotiation support in s_client/s_server.
993 *) Replace the highly broken and deprecated SPKAC certification method with
994 the updated NID creation version. This should correctly handle UTF8.
997 *) Implement RFC5746. Re-enable renegotiation but require the extension
998 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
999 turns out to be a bad idea. It has been replaced by
1000 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1001 SSL_CTX_set_options(). This is really not recommended unless you
1002 know what you are doing.
1003 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1005 *) Fixes to stateless session resumption handling. Use initial_ctx when
1006 issuing and attempting to decrypt tickets in case it has changed during
1007 servername handling. Use a non-zero length session ID when attempting
1008 stateless session resumption: this makes it possible to determine if
1009 a resumption has occurred immediately after receiving server hello
1010 (several places in OpenSSL subtly assume this) instead of later in
1014 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1015 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1016 fixes for a few places where the return code is not checked
1018 [Julia Lawall <julia@diku.dk>]
1020 *) Add --strict-warnings option to Configure script to include devteam
1021 warnings in other configurations.
1024 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1025 makes it possible to install openssl libraries in locations which
1026 have names other than "lib", for example "/usr/lib64" which some
1028 [Steve Henson, based on patch from Jeremy Utley]
1030 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1031 X690 8.9.12 and can produce some misleading textual output of OIDs.
1032 [Steve Henson, reported by Dan Kaminsky]
1034 *) Delete MD2 from algorithm tables. This follows the recommendation in
1035 several standards that it is not used in new applications due to
1036 several cryptographic weaknesses. For binary compatibility reasons
1037 the MD2 API is still compiled in by default.
1040 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1044 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1045 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1047 [Guenter <lists@gknw.net>]
1049 *) Fix the server certificate chain building code to use X509_verify_cert(),
1050 it used to have an ad-hoc builder which was unable to cope with anything
1051 other than a simple chain.
1052 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1054 *) Don't check self signed certificate signatures in X509_verify_cert()
1055 by default (a flag can override this): it just wastes time without
1056 adding any security. As a useful side effect self signed root CAs
1057 with non-FIPS digests are now usable in FIPS mode.
1060 *) In dtls1_process_out_of_seq_message() the check if the current message
1061 is already buffered was missing. For every new message was memory
1062 allocated, allowing an attacker to perform an denial of service attack
1063 with sending out of seq handshake messages until there is no memory
1064 left. Additionally every future messege was buffered, even if the
1065 sequence number made no sense and would be part of another handshake.
1066 So only messages with sequence numbers less than 10 in advance will be
1067 buffered. (CVE-2009-1378)
1068 [Robin Seggelmann, discovered by Daniel Mentz]
1070 *) Records are buffered if they arrive with a future epoch to be
1071 processed after finishing the corresponding handshake. There is
1072 currently no limitation to this buffer allowing an attacker to perform
1073 a DOS attack with sending records with future epochs until there is no
1074 memory left. This patch adds the pqueue_size() function to detemine
1075 the size of a buffer and limits the record buffer to 100 entries.
1077 [Robin Seggelmann, discovered by Daniel Mentz]
1079 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1080 parent structure is freed. (CVE-2009-1379)
1083 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1084 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1087 [Ilya O. <vrghost@gmail.com>]
1089 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1091 *) Disable renegotiation completely - this fixes a severe security
1092 problem (CVE-2009-3555) at the cost of breaking all
1093 renegotiation. Renegotiation can be re-enabled by setting
1094 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1095 run-time. This is really not recommended unless you know what
1099 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1101 *) Don't set val to NULL when freeing up structures, it is freed up by
1102 underlying code. If sizeof(void *) > sizeof(long) this can result in
1103 zeroing past the valid field. (CVE-2009-0789)
1104 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1106 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1107 checked correctly. This would allow some invalid signed attributes to
1108 appear to verify correctly. (CVE-2009-0591)
1109 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1111 *) Reject UniversalString and BMPString types with invalid lengths. This
1112 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1113 a legal length. (CVE-2009-0590)
1116 *) Set S/MIME signing as the default purpose rather than setting it
1117 unconditionally. This allows applications to override it at the store
1121 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1122 to handle some structures.
1125 *) Improve efficiency of mem_gets: don't search whole buffer each time
1127 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1129 *) New -hex option for openssl rand.
1132 *) Print out UTF8String and NumericString when parsing ASN1.
1135 *) Support NumericString type for name components.
1138 *) Allow CC in the environment to override the automatically chosen
1139 compiler. Note that nothing is done to ensure flags work with the
1143 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1145 *) Properly check EVP_VerifyFinal() and similar return values
1147 [Ben Laurie, Bodo Moeller, Google Security Team]
1149 *) Enable TLS extensions by default.
1152 *) Allow the CHIL engine to be loaded, whether the application is
1153 multithreaded or not. (This does not release the developer from the
1154 obligation to set up the dynamic locking callbacks.)
1155 [Sander Temme <sander@temme.net>]
1157 *) Use correct exit code if there is an error in dgst command.
1158 [Steve Henson; problem pointed out by Roland Dirlewanger]
1160 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1161 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1164 *) Add experimental JPAKE support, including demo authentication in
1165 s_client and s_server.
1168 *) Set the comparison function in v3_addr_canonize().
1169 [Rob Austein <sra@hactrn.net>]
1171 *) Add support for XMPP STARTTLS in s_client.
1172 [Philip Paeps <philip@freebsd.org>]
1174 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1175 to ensure that even with this option, only ciphersuites in the
1176 server's preference list will be accepted. (Note that the option
1177 applies only when resuming a session, so the earlier behavior was
1178 just about the algorithm choice for symmetric cryptography.)
1181 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1183 *) Fix NULL pointer dereference if a DTLS server received
1184 ChangeCipherSpec as first record (CVE-2009-1386).
1187 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1188 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1191 *) The fix in 0.9.8c that supposedly got rid of unsafe
1192 double-checked locking was incomplete for RSA blinding,
1193 addressing just one layer of what turns out to have been
1194 doubly unsafe triple-checked locking.
1196 So now fix this for real by retiring the MONT_HELPER macro
1197 in crypto/rsa/rsa_eay.c.
1199 [Bodo Moeller; problem pointed out by Marius Schilder]
1201 *) Various precautionary measures:
1203 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1205 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1206 (NB: This would require knowledge of the secret session ticket key
1207 to exploit, in which case you'd be SOL either way.)
1209 - Change bn_nist.c so that it will properly handle input BIGNUMs
1210 outside the expected range.
1212 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1215 [Neel Mehta, Bodo Moeller]
1217 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1218 the load fails. Useful for distros.
1219 [Ben Laurie and the FreeBSD team]
1221 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1224 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1227 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1229 This work was sponsored by Logica.
1232 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1233 keystores. Support for SSL/TLS client authentication too.
1234 Not compiled unless enable-capieng specified to Configure.
1236 This work was sponsored by Logica.
1239 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1240 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1241 attribute creation routines such as certifcate requests and PKCS#12
1245 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1247 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1248 handshake which could lead to a cilent crash as found using the
1249 Codenomicon TLS test suite (CVE-2008-1672)
1250 [Steve Henson, Mark Cox]
1252 *) Fix double free in TLS server name extensions which could lead to
1253 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1256 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1258 Clear the error queue to ensure that error entries left from
1259 older function calls do not interfere with the correct operation.
1260 [Lutz Jaenicke, Erik de Castro Lopo]
1262 *) Remove root CA certificates of commercial CAs:
1264 The OpenSSL project does not recommend any specific CA and does not
1265 have any policy with respect to including or excluding any CA.
1266 Therefore it does not make any sense to ship an arbitrary selection
1267 of root CA certificates with the OpenSSL software.
1270 *) RSA OAEP patches to fix two separate invalid memory reads.
1271 The first one involves inputs when 'lzero' is greater than
1272 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1273 before the beginning of from). The second one involves inputs where
1274 the 'db' section contains nothing but zeroes (there is a one-byte
1275 invalid read after the end of 'db').
1276 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1278 *) Partial backport from 0.9.9-dev:
1280 Introduce bn_mul_mont (dedicated Montgomery multiplication
1281 procedure) as a candidate for BIGNUM assembler implementation.
1282 While 0.9.9-dev uses assembler for various architectures, only
1283 x86_64 is available by default here in the 0.9.8 branch, and
1284 32-bit x86 is available through a compile-time setting.
1286 To try the 32-bit x86 assembler implementation, use Configure
1287 option "enable-montasm" (which exists only for this backport).
1289 As "enable-montasm" for 32-bit x86 disclaims code stability
1290 anyway, in this constellation we activate additional code
1291 backported from 0.9.9-dev for further performance improvements,
1292 namely BN_from_montgomery_word. (To enable this otherwise,
1293 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1295 [Andy Polyakov (backport partially by Bodo Moeller)]
1297 *) Add TLS session ticket callback. This allows an application to set
1298 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1299 values. This is useful for key rollover for example where several key
1300 sets may exist with different names.
1303 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1304 This was broken until now in 0.9.8 releases, such that the only way
1305 a registered ENGINE could be used (assuming it initialises
1306 successfully on the host) was to explicitly set it as the default
1307 for the relevant algorithms. This is in contradiction with 0.9.7
1308 behaviour and the documentation. With this fix, when an ENGINE is
1309 registered into a given algorithm's table of implementations, the
1310 'uptodate' flag is reset so that auto-discovery will be used next
1311 time a new context for that algorithm attempts to select an
1313 [Ian Lister (tweaked by Geoff Thorpe)]
1315 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1316 implemention in the following ways:
1318 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1321 Lack of BER streaming support means one pass streaming processing is
1322 only supported if data is detached: setting the streaming flag is
1323 ignored for embedded content.
1325 CMS support is disabled by default and must be explicitly enabled
1326 with the enable-cms configuration option.
1329 *) Update the GMP engine glue to do direct copies between BIGNUM and
1330 mpz_t when openssl and GMP use the same limb size. Otherwise the
1331 existing "conversion via a text string export" trick is still used.
1332 [Paul Sheer <paulsheer@gmail.com>]
1334 *) Zlib compression BIO. This is a filter BIO which compressed and
1335 uncompresses any data passed through it.
1338 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1339 RFC3394 compatible AES key wrapping.
1342 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1343 sets string data without copying. X509_ALGOR_set0() and
1344 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1345 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1346 from an X509_ATTRIBUTE structure optionally checking it occurs only
1347 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1351 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1352 to get the expected BN_FLG_CONSTTIME behavior.
1353 [Bodo Moeller (Google)]
1357 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1358 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1359 - added some more tests to do_tests.pl
1360 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1361 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1362 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1363 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1364 - various changes to netware.pl to enable gcc-cross builds on Win32
1366 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1367 - various changes to fix missing prototype warnings
1368 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1369 - added AES, WHIRLPOOL and CPUID assembler code to build files
1370 - added missing AES assembler make rules to mk1mf.pl
1371 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1372 [Guenter Knauf <eflash@gmx.net>]
1374 *) Implement certificate status request TLS extension defined in RFC3546.
1375 A client can set the appropriate parameters and receive the encoded
1376 OCSP response via a callback. A server can query the supplied parameters
1377 and set the encoded OCSP response in the callback. Add simplified examples
1378 to s_client and s_server.
1381 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1383 *) Fix various bugs:
1384 + Binary incompatibility of ssl_ctx_st structure
1385 + DTLS interoperation with non-compliant servers
1386 + Don't call get_session_cb() without proposed session
1387 + Fix ia64 assembler code
1388 [Andy Polyakov, Steve Henson]
1390 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1392 *) DTLS Handshake overhaul. There were longstanding issues with
1393 OpenSSL DTLS implementation, which were making it impossible for
1394 RFC 4347 compliant client to communicate with OpenSSL server.
1395 Unfortunately just fixing these incompatibilities would "cut off"
1396 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1397 server keeps tolerating non RFC compliant syntax. The opposite is
1398 not true, 0.9.8f client can not communicate with earlier server.
1399 This update even addresses CVE-2007-4995.
1402 *) Changes to avoid need for function casts in OpenSSL: some compilers
1403 (gcc 4.2 and later) reject their use.
1404 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1407 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1408 RFC4507bis. The encrypted ticket format is an encrypted encoded
1409 SSL_SESSION structure, that way new session features are automatically
1412 If a client application caches session in an SSL_SESSION structure
1413 support is transparent because tickets are now stored in the encoded
1416 The SSL_CTX structure automatically generates keys for ticket
1417 protection in servers so again support should be possible
1418 with no application modification.
1420 If a client or server wishes to disable RFC4507 support then the option
1421 SSL_OP_NO_TICKET can be set.
1423 Add a TLS extension debugging callback to allow the contents of any client
1424 or server extensions to be examined.
1426 This work was sponsored by Google.
1429 *) Add initial support for TLS extensions, specifically for the server_name
1430 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1431 have new members for a host name. The SSL data structure has an
1432 additional member SSL_CTX *initial_ctx so that new sessions can be
1433 stored in that context to allow for session resumption, even after the
1434 SSL has been switched to a new SSL_CTX in reaction to a client's
1435 server_name extension.
1437 New functions (subject to change):
1439 SSL_get_servername()
1440 SSL_get_servername_type()
1443 New CTRL codes and macros (subject to change):
1445 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1446 - SSL_CTX_set_tlsext_servername_callback()
1447 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1448 - SSL_CTX_set_tlsext_servername_arg()
1449 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1451 openssl s_client has a new '-servername ...' option.
1453 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1454 '-key2 ...', '-servername_fatal' (subject to change). This allows
1455 testing the HostName extension for a specific single host name ('-cert'
1456 and '-key' remain fallbacks for handshakes without HostName
1457 negotiation). If the unrecogninzed_name alert has to be sent, this by
1458 default is a warning; it becomes fatal with the '-servername_fatal'
1461 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1463 *) Add AES and SSE2 assembly language support to VC++ build.
1466 *) Mitigate attack on final subtraction in Montgomery reduction.
1469 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1470 (which previously caused an internal error).
1473 *) Squeeze another 10% out of IGE mode when in != out.
1476 *) AES IGE mode speedup.
1477 [Dean Gaudet (Google)]
1479 *) Add the Korean symmetric 128-bit cipher SEED (see
1480 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1481 add SEED ciphersuites from RFC 4162:
1483 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1484 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1485 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1486 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1488 To minimize changes between patchlevels in the OpenSSL 0.9.8
1489 series, SEED remains excluded from compilation unless OpenSSL
1490 is configured with 'enable-seed'.
1491 [KISA, Bodo Moeller]
1493 *) Mitigate branch prediction attacks, which can be practical if a
1494 single processor is shared, allowing a spy process to extract
1495 information. For detailed background information, see
1496 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1497 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1498 and Necessary Software Countermeasures"). The core of the change
1499 are new versions BN_div_no_branch() and
1500 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1501 respectively, which are slower, but avoid the security-relevant
1502 conditional branches. These are automatically called by BN_div()
1503 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1504 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1505 remove a conditional branch.
1507 BN_FLG_CONSTTIME is the new name for the previous
1508 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1509 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1510 in the exponent causes BN_mod_exp_mont() to use the alternative
1511 implementation in BN_mod_exp_mont_consttime().) The old name
1512 remains as a deprecated alias.
1514 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1515 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1516 constant-time implementations for more than just exponentiation.
1517 Here too the old name is kept as a deprecated alias.
1519 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1520 the BN_BLINDING structure gets an independent copy of the
1521 modulus. This means that the previous "BIGNUM *m" argument to
1522 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1523 essentially becomes "const BIGNUM *m", although we can't actually
1524 change this in the header file before 0.9.9. It allows
1525 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1526 enable BN_FLG_CONSTTIME.
1528 [Matthew D Wood (Intel Corp)]
1530 *) In the SSL/TLS server implementation, be strict about session ID
1531 context matching (which matters if an application uses a single
1532 external cache for different purposes). Previously,
1533 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1534 set. This did ensure strict client verification, but meant that,
1535 with applications using a single external cache for quite
1536 different requirements, clients could circumvent ciphersuite
1537 restrictions for a given session ID context by starting a session
1538 in a different context.
1541 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1542 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1543 authentication-only ciphersuites.
1546 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1547 not complete and could lead to a possible single byte overflow
1548 (CVE-2007-5135) [Ben Laurie]
1550 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1552 *) Since AES128 and AES256 (and similarly Camellia128 and
1553 Camellia256) share a single mask bit in the logic of
1554 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1555 kludge to work properly if AES128 is available and AES256 isn't
1556 (or if Camellia128 is available and Camellia256 isn't).
1559 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1560 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1561 When a point or a seed is encoded in a BIT STRING, we need to
1562 prevent the removal of trailing zero bits to get the proper DER
1563 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1564 of a NamedBitList, for which trailing 0 bits need to be removed.)
1567 *) Have SSL/TLS server implementation tolerate "mismatched" record
1568 protocol version while receiving ClientHello even if the
1569 ClientHello is fragmented. (The server can't insist on the
1570 particular protocol version it has chosen before the ServerHello
1571 message has informed the client about his choice.)
1574 *) Add RFC 3779 support.
1575 [Rob Austein for ARIN, Ben Laurie]
1577 *) Load error codes if they are not already present instead of using a
1578 static variable. This allows them to be cleanly unloaded and reloaded.
1579 Improve header file function name parsing.
1582 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1583 or CAPABILITY handshake as required by RFCs.
1586 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1588 *) Introduce limits to prevent malicious keys being able to
1589 cause a denial of service. (CVE-2006-2940)
1590 [Steve Henson, Bodo Moeller]
1592 *) Fix ASN.1 parsing of certain invalid structures that can result
1593 in a denial of service. (CVE-2006-2937) [Steve Henson]
1595 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1596 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1598 *) Fix SSL client code which could crash if connecting to a
1599 malicious SSLv2 server. (CVE-2006-4343)
1600 [Tavis Ormandy and Will Drewry, Google Security Team]
1602 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1603 match only those. Before that, "AES256-SHA" would be interpreted
1604 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1605 the same strength classification in 0.9.7h) as we currently only
1606 have a single AES bit in the ciphersuite description bitmap.
1607 That change, however, also applied to ciphersuite strings such as
1608 "RC4-MD5" that intentionally matched multiple ciphersuites --
1609 namely, SSL 2.0 ciphersuites in addition to the more common ones
1610 from SSL 3.0/TLS 1.0.
1612 So we change the selection algorithm again: Naming an explicit
1613 ciphersuite selects this one ciphersuite, and any other similar
1614 ciphersuite (same bitmap) from *other* protocol versions.
1615 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1616 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1618 Since SSL 2.0 does not have any ciphersuites for which the
1619 128/256 bit distinction would be relevant, this works for now.
1620 The proper fix will be to use different bits for AES128 and
1621 AES256, which would have avoided the problems from the beginning;
1622 however, bits are scarce, so we can only do this in a new release
1623 (not just a patchlevel) when we can change the SSL_CIPHER
1624 definition to split the single 'unsigned long mask' bitmap into
1625 multiple values to extend the available space.
1629 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1631 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1632 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1634 *) Add AES IGE and biIGE modes.
1637 *) Change the Unix randomness entropy gathering to use poll() when
1638 possible instead of select(), since the latter has some
1639 undesirable limitations.
1640 [Darryl Miles via Richard Levitte and Bodo Moeller]
1642 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1643 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1644 cannot be implicitly activated as part of, e.g., the "AES" alias.
1645 However, please upgrade to OpenSSL 0.9.9[-dev] for
1646 non-experimental use of the ECC ciphersuites to get TLS extension
1647 support, which is required for curve and point format negotiation
1648 to avoid potential handshake problems.
1651 *) Disable rogue ciphersuites:
1653 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1654 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1655 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1657 The latter two were purportedly from
1658 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1661 Also deactivate the remaining ciphersuites from
1662 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1663 unofficial, and the ID has long expired.
1666 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1667 dual-core machines) and other potential thread-safety issues.
1670 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1671 versions), which is now available for royalty-free use
1672 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1673 Also, add Camellia TLS ciphersuites from RFC 4132.
1675 To minimize changes between patchlevels in the OpenSSL 0.9.8
1676 series, Camellia remains excluded from compilation unless OpenSSL
1677 is configured with 'enable-camellia'.
1680 *) Disable the padding bug check when compression is in use. The padding
1681 bug check assumes the first packet is of even length, this is not
1682 necessarily true if compresssion is enabled and can result in false
1683 positives causing handshake failure. The actual bug test is ancient
1684 code so it is hoped that implementations will either have fixed it by
1685 now or any which still have the bug do not support compression.
1688 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1690 *) When applying a cipher rule check to see if string match is an explicit
1691 cipher suite and only match that one cipher suite if it is.
1694 *) Link in manifests for VC++ if needed.
1695 [Austin Ziegler <halostatue@gmail.com>]
1697 *) Update support for ECC-based TLS ciphersuites according to
1698 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1699 TLS extensions, which are supported starting with the 0.9.9
1700 branch, not in the OpenSSL 0.9.8 branch).
1703 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1704 opaque EVP_CIPHER_CTX handling.
1707 *) Fixes and enhancements to zlib compression code. We now only use
1708 "zlib1.dll" and use the default __cdecl calling convention on Win32
1709 to conform with the standards mentioned here:
1710 http://www.zlib.net/DLL_FAQ.txt
1711 Static zlib linking now works on Windows and the new --with-zlib-include
1712 --with-zlib-lib options to Configure can be used to supply the location
1713 of the headers and library. Gracefully handle case where zlib library
1717 *) Several fixes and enhancements to the OID generation code. The old code
1718 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1719 handle numbers larger than ULONG_MAX, truncated printing and had a
1720 non standard OBJ_obj2txt() behaviour.
1723 *) Add support for building of engines under engine/ as shared libraries
1724 under VC++ build system.
1727 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1728 Hopefully, we will not see any false combination of paths any more.
1731 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1733 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1734 (part of SSL_OP_ALL). This option used to disable the
1735 countermeasure against man-in-the-middle protocol-version
1736 rollback in the SSL 2.0 server implementation, which is a bad
1737 idea. (CVE-2005-2969)
1739 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1740 for Information Security, National Institute of Advanced Industrial
1741 Science and Technology [AIST], Japan)]
1743 *) Add two function to clear and return the verify parameter flags.
1746 *) Keep cipherlists sorted in the source instead of sorting them at
1747 runtime, thus removing the need for a lock.
1750 *) Avoid some small subgroup attacks in Diffie-Hellman.
1751 [Nick Mathewson and Ben Laurie]
1753 *) Add functions for well-known primes.
1756 *) Extended Windows CE support.
1757 [Satoshi Nakamura and Andy Polyakov]
1759 *) Initialize SSL_METHOD structures at compile time instead of during
1760 runtime, thus removing the need for a lock.
1763 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1764 attempting to decrypt each encrypted key in turn. Add support to
1768 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1770 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1773 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1776 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1777 key into the same file any more.
1780 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1783 *) Add -utf8 command line and config file option to 'ca'.
1784 [Stefan <stf@udoma.org]
1786 *) Removed the macro des_crypt(), as it seems to conflict with some
1787 libraries. Use DES_crypt().
1790 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1791 involves renaming the source and generated shared-libs for
1792 both. The engines will accept the corrected or legacy ids
1793 ('ncipher' and '4758_cca' respectively) when binding. NB,
1794 this only applies when building 'shared'.
1795 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1797 *) Add attribute functions to EVP_PKEY structure. Modify
1798 PKCS12_create() to recognize a CSP name attribute and
1799 use it. Make -CSP option work again in pkcs12 utility.
1802 *) Add new functionality to the bn blinding code:
1803 - automatic re-creation of the BN_BLINDING parameters after
1804 a fixed number of uses (currently 32)
1805 - add new function for parameter creation
1806 - introduce flags to control the update behaviour of the
1807 BN_BLINDING parameters
1808 - hide BN_BLINDING structure
1809 Add a second BN_BLINDING slot to the RSA structure to improve
1810 performance when a single RSA object is shared among several
1814 *) Add support for DTLS.
1815 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1817 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1818 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1821 *) Remove buggy and incompletet DH cert support from
1822 ssl/ssl_rsa.c and ssl/s3_both.c
1825 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1826 the apps/openssl applications.
1829 *) Compile clean with "-Wall -Wmissing-prototypes
1830 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1831 DEBUG_SAFESTACK must also be set.
1834 *) Change ./Configure so that certain algorithms can be disabled by default.
1835 The new counterpiece to "no-xxx" is "enable-xxx".
1837 The patented RC5 and MDC2 algorithms will now be disabled unless
1838 "enable-rc5" and "enable-mdc2", respectively, are specified.
1840 (IDEA remains enabled despite being patented. This is because IDEA
1841 is frequently required for interoperability, and there is no license
1842 fee for non-commercial use. As before, "no-idea" can be used to
1843 avoid this algorithm.)
1847 *) Add processing of proxy certificates (see RFC 3820). This work was
1848 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1849 EGEE (Enabling Grids for E-science in Europe).
1852 *) RC4 performance overhaul on modern architectures/implementations, such
1853 as Intel P4, IA-64 and AMD64.
1856 *) New utility extract-section.pl. This can be used specify an alternative
1857 section number in a pod file instead of having to treat each file as
1858 a separate case in Makefile. This can be done by adding two lines to the
1861 =for comment openssl_section:XXX
1863 The blank line is mandatory.
1867 *) New arguments -certform, -keyform and -pass for s_client and s_server
1868 to allow alternative format key and certificate files and passphrase
1872 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1873 update associated structures and add various utility functions.
1875 Add new policy related verify parameters, include policy checking in
1876 standard verify code. Enhance 'smime' application with extra parameters
1877 to support policy checking and print out.
1880 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1881 Nehemiah processors. These extensions support AES encryption in hardware
1882 as well as RNG (though RNG support is currently disabled).
1883 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1885 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1888 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1889 [Andy Polyakov and a number of other people]
1891 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1892 implementation contributed by IBM.
1893 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1895 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1896 exponent rather than 'unsigned long'. There is a corresponding change to
1897 the new 'rsa_keygen' element of the RSA_METHOD structure.
1898 [Jelte Jansen, Geoff Thorpe]
1900 *) Functionality for creating the initial serial number file is now
1901 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1903 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1904 number file to 1, which is bound to cause problems. To avoid
1905 the problems while respecting compatibility between different 0.9.7
1906 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1907 CA.pl for serial number initialization. With the new release 0.9.8,
1908 we can fix the problem directly in the 'ca' utility.)
1911 *) Reduced header interdepencies by declaring more opaque objects in
1912 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1913 give fewer recursive includes, which could break lazy source code - so
1914 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1915 developers should define this symbol when building and using openssl to
1916 ensure they track the recommended behaviour, interfaces, [etc], but
1917 backwards-compatible behaviour prevails when this isn't defined.
1920 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1923 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1924 This will generate a random key of the appropriate length based on the
1925 cipher context. The EVP_CIPHER can provide its own random key generation
1926 routine to support keys of a specific form. This is used in the des and
1927 3des routines to generate a key of the correct parity. Update S/MIME
1928 code to use new functions and hence generate correct parity DES keys.
1929 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1930 valid (weak or incorrect parity).
1933 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1934 as looking them up. This is useful when the verified structure may contain
1935 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1936 present unless the new PKCS7_NO_CRL flag is asserted.
1939 *) Extend ASN1 oid configuration module. It now additionally accepts the
1942 shortName = some long name, 1.2.3.4
1945 *) Reimplemented the BN_CTX implementation. There is now no more static
1946 limitation on the number of variables it can handle nor the depth of the
1947 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1948 information can now expand as required, and rather than having a single
1949 static array of bignums, BN_CTX now uses a linked-list of such arrays
1950 allowing it to expand on demand whilst maintaining the usefulness of
1951 BN_CTX's "bundling".
1954 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1955 to allow all RSA operations to function using a single BN_CTX.
1958 *) Preliminary support for certificate policy evaluation and checking. This
1959 is initially intended to pass the tests outlined in "Conformance Testing
1960 of Relying Party Client Certificate Path Processing Logic" v1.07.
1963 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1964 remained unused and not that useful. A variety of other little bignum
1965 tweaks and fixes have also been made continuing on from the audit (see
1969 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1970 associated ASN1, EVP and SSL functions and old ASN1 macros.
1973 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1974 and this should never fail. So the return value from the use of
1975 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1976 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1979 *) BN_CTX_get() should return zero-valued bignums, providing the same
1980 initialised value as BN_new().
1981 [Geoff Thorpe, suggested by Ulf Möller]
1983 *) Support for inhibitAnyPolicy certificate extension.
1986 *) An audit of the BIGNUM code is underway, for which debugging code is
1987 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1988 is considered valid when processing BIGNUMs, and causes execution to
1989 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1990 further steps are taken to deliberately pollute unused data in BIGNUM
1991 structures to try and expose faulty code further on. For now, openssl will
1992 (in its default mode of operation) continue to tolerate the inconsistent
1993 forms that it has tolerated in the past, but authors and packagers should
1994 consider trying openssl and their own applications when compiled with
1995 these debugging symbols defined. It will help highlight potential bugs in
1996 their own code, and will improve the test coverage for OpenSSL itself. At
1997 some point, these tighter rules will become openssl's default to improve
1998 maintainability, though the assert()s and other overheads will remain only
1999 in debugging configurations. See bn.h for more details.
2000 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2002 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2003 that can only be obtained through BN_CTX_new() (which implicitly
2004 initialises it). The presence of this function only made it possible
2005 to overwrite an existing structure (and cause memory leaks).
2008 *) Because of the callback-based approach for implementing LHASH as a
2009 template type, lh_insert() adds opaque objects to hash-tables and
2010 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2011 to clean up those corresponding objects before destroying the hash table
2012 (and losing the object pointers). So some over-zealous constifications in
2013 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2014 objects as "const" and the lh_doall[_arg] callback wrappers are not
2015 prototyped to have "const" restrictions on the object pointers they are
2016 given (and so aren't required to cast them away any more).
2019 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2020 (speed) prefers to use its own implementation. The two implementations
2021 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2022 its object type properly exposed (MS_TM) instead of casting to/from "char
2023 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2024 aren't necessarily the greatest nomenclatures - but this is what was used
2025 internally to the implementation so I've used that for now.
2028 *) Ensure that deprecated functions do not get compiled when
2029 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2030 the self-tests were still using deprecated key-generation functions so
2031 these have been updated also.
2034 *) Reorganise PKCS#7 code to separate the digest location functionality
2035 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2036 New function PKCS7_set_digest() to set the digest type for PKCS#7
2037 digestedData type. Add additional code to correctly generate the
2038 digestedData type and add support for this type in PKCS7 initialization
2042 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2043 structure of type "other".
2046 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2047 sure the loop does correctly stop and breaking ("division by zero")
2048 modulus operations are not performed. The (pre-generated) prime
2049 table crypto/bn/bn_prime.h was already correct, but it could not be
2050 re-generated on some platforms because of the "division by zero"
2051 situation in the script.
2052 [Ralf S. Engelschall]
2054 *) Update support for ECC-based TLS ciphersuites according to
2055 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2056 SHA-1 now is only used for "small" curves (where the
2057 representation of a field element takes up to 24 bytes); for
2058 larger curves, the field element resulting from ECDH is directly
2059 used as premaster secret.
2060 [Douglas Stebila (Sun Microsystems Laboratories)]
2062 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2063 curve secp160r1 to the tests.
2064 [Douglas Stebila (Sun Microsystems Laboratories)]
2066 *) Add the possibility to load symbols globally with DSO.
2067 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2069 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2070 control of the error stack.
2073 *) Add support for STORE in ENGINE.
2076 *) Add the STORE type. The intention is to provide a common interface
2077 to certificate and key stores, be they simple file-based stores, or
2078 HSM-type store, or LDAP stores, or...
2079 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2082 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2083 pass a list of arguments to any function as well as provide a way
2084 for a function to pass data back to the caller.
2087 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2088 works like BUF_strdup() but can be used to duplicate a portion of
2089 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2093 *) Add the function sk_find_ex() which works like sk_find(), but will
2094 return an index to an element even if an exact match couldn't be
2095 found. The index is guaranteed to point at the element where the
2096 searched-for key would be inserted to preserve sorting order.
2099 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2100 takes an extra flags argument for optional functionality. Currently,
2101 the following flags are defined:
2103 OBJ_BSEARCH_VALUE_ON_NOMATCH
2104 This one gets OBJ_bsearch_ex() to return a pointer to the first
2105 element where the comparing function returns a negative or zero
2108 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2109 This one gets OBJ_bsearch_ex() to return a pointer to the first
2110 element where the comparing function returns zero. This is useful
2111 if there are more than one element where the comparing function
2115 *) Make it possible to create self-signed certificates with 'openssl ca'
2116 in such a way that the self-signed certificate becomes part of the
2117 CA database and uses the same mechanisms for serial number generation
2118 as all other certificate signing. The new flag '-selfsign' enables
2119 this functionality. Adapt CA.sh and CA.pl.in.
2122 *) Add functionality to check the public key of a certificate request
2123 against a given private. This is useful to check that a certificate
2124 request can be signed by that key (self-signing).
2127 *) Make it possible to have multiple active certificates with the same
2128 subject in the CA index file. This is done only if the keyword
2129 'unique_subject' is set to 'no' in the main CA section (default
2130 if 'CA_default') of the configuration file. The value is saved
2131 with the database itself in a separate index attribute file,
2132 named like the index file with '.attr' appended to the name.
2135 *) Generate muti valued AVAs using '+' notation in config files for
2139 *) Support for nameConstraints certificate extension.
2142 *) Support for policyConstraints certificate extension.
2145 *) Support for policyMappings certificate extension.
2148 *) Make sure the default DSA_METHOD implementation only uses its
2149 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2150 and change its own handlers to be NULL so as to remove unnecessary
2151 indirection. This lets alternative implementations fallback to the
2152 default implementation more easily.
2155 *) Support for directoryName in GeneralName related extensions
2159 *) Make it possible to link applications using Makefile.shared.
2160 Make that possible even when linking against static libraries!
2163 *) Support for single pass processing for S/MIME signing. This now
2164 means that S/MIME signing can be done from a pipe, in addition
2165 cleartext signing (multipart/signed type) is effectively streaming
2166 and the signed data does not need to be all held in memory.
2168 This is done with a new flag PKCS7_STREAM. When this flag is set
2169 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2170 is done after the data is output (and digests calculated) in
2171 SMIME_write_PKCS7().
2174 *) Add full support for -rpath/-R, both in shared libraries and
2175 applications, at least on the platforms where it's known how
2179 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2180 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2181 will now compute a table of multiples of the generator that
2182 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2183 faster (notably in the case of a single point multiplication,
2184 scalar * generator).
2185 [Nils Larsch, Bodo Moeller]
2187 *) IPv6 support for certificate extensions. The various extensions
2188 which use the IP:a.b.c.d can now take IPv6 addresses using the
2189 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2193 *) Added an ENGINE that implements RSA by performing private key
2194 exponentiations with the GMP library. The conversions to and from
2195 GMP's mpz_t format aren't optimised nor are any montgomery forms
2196 cached, and on x86 it appears OpenSSL's own performance has caught up.
2197 However there are likely to be other architectures where GMP could
2198 provide a boost. This ENGINE is not built in by default, but it can be
2199 specified at Configure time and should be accompanied by the necessary
2200 linker additions, eg;
2201 ./config -DOPENSSL_USE_GMP -lgmp
2204 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2205 testing availability of engines with "-t" - the old behaviour is
2206 produced by increasing the feature's verbosity with "-tt".
2209 *) ECDSA routines: under certain error conditions uninitialized BN objects
2210 could be freed. Solution: make sure initialization is performed early
2211 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2215 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2216 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2217 software implementations. For DSA and DH, parameter generation can
2218 also be overriden by providing the appropriate method callbacks.
2221 *) Change the "progress" mechanism used in key-generation and
2222 primality testing to functions that take a new BN_GENCB pointer in
2223 place of callback/argument pairs. The new API functions have "_ex"
2224 postfixes and the older functions are reimplemented as wrappers for
2225 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2226 declarations of the old functions to help (graceful) attempts to
2227 migrate to the new functions. Also, the new key-generation API
2228 functions operate on a caller-supplied key-structure and return
2229 success/failure rather than returning a key or NULL - this is to
2230 help make "keygen" another member function of RSA_METHOD etc.
2232 Example for using the new callback interface:
2234 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2238 BN_GENCB_set(&my_cb, my_callback, my_arg);
2240 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2241 /* For the meaning of a, b in calls to my_callback(), see the
2242 * documentation of the function that calls the callback.
2243 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2244 * my_callback should return 1 if it wants BN_is_prime_ex()
2245 * to continue, or 0 to stop.
2250 *) Change the ZLIB compression method to be stateful, and make it
2251 available to TLS with the number defined in
2252 draft-ietf-tls-compression-04.txt.
2255 *) Add the ASN.1 structures and functions for CertificatePair, which
2256 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2258 CertificatePair ::= SEQUENCE {
2259 forward [0] Certificate OPTIONAL,
2260 reverse [1] Certificate OPTIONAL,
2261 -- at least one of the pair shall be present -- }
2263 Also implement the PEM functions to read and write certificate
2264 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2266 This needed to be defined, mostly for the sake of the LDAP
2267 attribute crossCertificatePair, but may prove useful elsewhere as
2271 *) Make it possible to inhibit symlinking of shared libraries in
2272 Makefile.shared, for Cygwin's sake.
2275 *) Extend the BIGNUM API by creating a function
2276 void BN_set_negative(BIGNUM *a, int neg);
2277 and a macro that behave like
2278 int BN_is_negative(const BIGNUM *a);
2280 to avoid the need to access 'a->neg' directly in applications.
2283 *) Implement fast modular reduction for pseudo-Mersenne primes
2284 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2285 EC_GROUP_new_curve_GFp() will now automatically use this
2287 [Nils Larsch <nla@trustcenter.de>]
2289 *) Add new lock type (CRYPTO_LOCK_BN).
2292 *) Change the ENGINE framework to automatically load engines
2293 dynamically from specific directories unless they could be
2294 found to already be built in or loaded. Move all the
2295 current engines except for the cryptodev one to a new
2297 The engines in engines/ are built as shared libraries if
2298 the "shared" options was given to ./Configure or ./config.
2299 Otherwise, they are inserted in libcrypto.a.
2300 /usr/local/ssl/engines is the default directory for dynamic
2301 engines, but that can be overriden at configure time through
2302 the usual use of --prefix and/or --openssldir, and at run
2303 time with the environment variable OPENSSL_ENGINES.
2304 [Geoff Thorpe and Richard Levitte]
2306 *) Add Makefile.shared, a helper makefile to build shared
2307 libraries. Addapt Makefile.org.
2310 *) Add version info to Win32 DLLs.
2311 [Peter 'Luna' Runestig" <peter@runestig.com>]
2313 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2314 can be added using this API to created arbitrary PKCS#12
2315 files while avoiding the low level API.
2317 New options to PKCS12_create(), key or cert can be NULL and
2318 will then be omitted from the output file. The encryption
2319 algorithm NIDs can be set to -1 for no encryption, the mac
2320 iteration count can be set to 0 to omit the mac.
2322 Enhance pkcs12 utility by making the -nokeys and -nocerts
2323 options work when creating a PKCS#12 file. New option -nomac
2324 to omit the mac, NONE can be set for an encryption algorithm.
2325 New code is modified to use the enhanced PKCS12_create()
2326 instead of the low level API.
2329 *) Extend ASN1 encoder to support indefinite length constructed
2330 encoding. This can output sequences tags and octet strings in
2331 this form. Modify pk7_asn1.c to support indefinite length
2332 encoding. This is experimental and needs additional code to
2333 be useful, such as an ASN1 bio and some enhanced streaming
2336 Extend template encode functionality so that tagging is passed
2337 down to the template encoder.
2340 *) Let 'openssl req' fail if an argument to '-newkey' is not
2341 recognized instead of using RSA as a default.
2344 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2345 As these are not official, they are not included in "ALL";
2346 the "ECCdraft" ciphersuite group alias can be used to select them.
2347 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2349 *) Add ECDH engine support.
2350 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2352 *) Add ECDH in new directory crypto/ecdh/.
2353 [Douglas Stebila (Sun Microsystems Laboratories)]
2355 *) Let BN_rand_range() abort with an error after 100 iterations
2356 without success (which indicates a broken PRNG).
2359 *) Change BN_mod_sqrt() so that it verifies that the input value
2360 is really the square of the return value. (Previously,
2361 BN_mod_sqrt would show GIGO behaviour.)
2364 *) Add named elliptic curves over binary fields from X9.62, SECG,
2365 and WAP/WTLS; add OIDs that were still missing.
2367 [Sheueling Chang Shantz and Douglas Stebila
2368 (Sun Microsystems Laboratories)]
2370 *) Extend the EC library for elliptic curves over binary fields
2371 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2374 EC_GF2m_simple_method
2378 EC_GROUP_new_curve_GF2m
2379 EC_GROUP_set_curve_GF2m
2380 EC_GROUP_get_curve_GF2m
2381 EC_POINT_set_affine_coordinates_GF2m
2382 EC_POINT_get_affine_coordinates_GF2m
2383 EC_POINT_set_compressed_coordinates_GF2m
2385 Point compression for binary fields is disabled by default for
2386 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2389 As binary polynomials are represented as BIGNUMs, various members
2390 of the EC_GROUP and EC_POINT data structures can be shared
2391 between the implementations for prime fields and binary fields;
2392 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2393 are essentially identical to their ..._GFp counterparts.
2394 (For simplicity, the '..._GFp' prefix has been dropped from
2395 various internal method names.)
2397 An internal 'field_div' method (similar to 'field_mul' and
2398 'field_sqr') has been added; this is used only for binary fields.
2400 [Sheueling Chang Shantz and Douglas Stebila
2401 (Sun Microsystems Laboratories)]
2403 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2404 through methods ('mul', 'precompute_mult').
2406 The generic implementations (now internally called 'ec_wNAF_mul'
2407 and 'ec_wNAF_precomputed_mult') remain the default if these
2408 methods are undefined.
2410 [Sheueling Chang Shantz and Douglas Stebila
2411 (Sun Microsystems Laboratories)]
2413 *) New function EC_GROUP_get_degree, which is defined through
2414 EC_METHOD. For curves over prime fields, this returns the bit
2415 length of the modulus.
2417 [Sheueling Chang Shantz and Douglas Stebila
2418 (Sun Microsystems Laboratories)]
2420 *) New functions EC_GROUP_dup, EC_POINT_dup.
2421 (These simply call ..._new and ..._copy).
2423 [Sheueling Chang Shantz and Douglas Stebila
2424 (Sun Microsystems Laboratories)]
2426 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2427 Polynomials are represented as BIGNUMs (where the sign bit is not
2428 used) in the following functions [macros]:
2431 BN_GF2m_sub [= BN_GF2m_add]
2432 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2433 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2434 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2436 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2437 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2438 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2439 BN_GF2m_cmp [= BN_ucmp]
2441 (Note that only the 'mod' functions are actually for fields GF(2^m).
2442 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2444 For some functions, an the irreducible polynomial defining a
2445 field can be given as an 'unsigned int[]' with strictly
2446 decreasing elements giving the indices of those bits that are set;
2447 i.e., p[] represents the polynomial
2448 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2450 p[0] > p[1] > ... > p[k] = 0.
2451 This applies to the following functions:
2456 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2457 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2459 BN_GF2m_mod_sqrt_arr
2460 BN_GF2m_mod_solve_quad_arr
2464 Conversion can be performed by the following functions:
2469 bntest.c has additional tests for binary polynomial arithmetic.
2471 Two implementations for BN_GF2m_mod_div() are available.
2472 The default algorithm simply uses BN_GF2m_mod_inv() and
2473 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2474 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2475 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2477 [Sheueling Chang Shantz and Douglas Stebila
2478 (Sun Microsystems Laboratories)]
2480 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2481 functionality is disabled at compile-time.
2482 [Douglas Stebila <douglas.stebila@sun.com>]
2484 *) Change default behaviour of 'openssl asn1parse' so that more
2485 information is visible when viewing, e.g., a certificate:
2487 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2488 mode the content of non-printable OCTET STRINGs is output in a
2489 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2490 avoid the appearance of a printable string.
2491 [Nils Larsch <nla@trustcenter.de>]
2493 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2495 EC_GROUP_set_asn1_flag()
2496 EC_GROUP_get_asn1_flag()
2497 EC_GROUP_set_point_conversion_form()
2498 EC_GROUP_get_point_conversion_form()
2499 These control ASN1 encoding details:
2500 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2501 has been set to OPENSSL_EC_NAMED_CURVE.
2502 - Points are encoded in uncompressed form by default; options for
2503 asn1_for are as for point2oct, namely
2504 POINT_CONVERSION_COMPRESSED
2505 POINT_CONVERSION_UNCOMPRESSED
2506 POINT_CONVERSION_HYBRID
2508 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2511 EC_GROUP_get0_seed()
2512 EC_GROUP_get_seed_len()
2513 This is used only for ASN1 purposes (so far).
2514 [Nils Larsch <nla@trustcenter.de>]
2516 *) Add 'field_type' member to EC_METHOD, which holds the NID
2517 of the appropriate field type OID. The new function
2518 EC_METHOD_get_field_type() returns this value.
2519 [Nils Larsch <nla@trustcenter.de>]
2524 EC_POINT_point2hex()
2525 EC_POINT_hex2point()
2526 providing useful interfaces to EC_POINT_point2oct() and
2527 EC_POINT_oct2point().
2528 [Nils Larsch <nla@trustcenter.de>]
2530 *) Change internals of the EC library so that the functions
2531 EC_GROUP_set_generator()
2532 EC_GROUP_get_generator()
2533 EC_GROUP_get_order()
2534 EC_GROUP_get_cofactor()
2535 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2536 to methods, which would lead to unnecessary code duplication when
2537 adding different types of curves.
2538 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2540 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2541 arithmetic, and such that modified wNAFs are generated
2542 (which avoid length expansion in many cases).
2545 *) Add a function EC_GROUP_check_discriminant() (defined via
2546 EC_METHOD) that verifies that the curve discriminant is non-zero.
2548 Add a function EC_GROUP_check() that makes some sanity tests
2549 on a EC_GROUP, its generator and order. This includes
2550 EC_GROUP_check_discriminant().
2551 [Nils Larsch <nla@trustcenter.de>]
2553 *) Add ECDSA in new directory crypto/ecdsa/.
2555 Add applications 'openssl ecparam' and 'openssl ecdsa'
2556 (these are based on 'openssl dsaparam' and 'openssl dsa').
2558 ECDSA support is also included in various other files across the
2559 library. Most notably,
2560 - 'openssl req' now has a '-newkey ecdsa:file' option;
2561 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2562 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2563 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2564 them suitable for ECDSA where domain parameters must be
2565 extracted before the specific public key;
2566 - ECDSA engine support has been added.
2567 [Nils Larsch <nla@trustcenter.de>]
2569 *) Include some named elliptic curves, and add OIDs from X9.62,
2570 SECG, and WAP/WTLS. Each curve can be obtained from the new
2572 EC_GROUP_new_by_curve_name(),
2573 and the list of available named curves can be obtained with
2574 EC_get_builtin_curves().
2575 Also add a 'curve_name' member to EC_GROUP objects, which can be
2577 EC_GROUP_set_curve_name()
2578 EC_GROUP_get_curve_name()
2579 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2581 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2582 was actually never needed) and in BN_mul(). The removal in BN_mul()
2583 required a small change in bn_mul_part_recursive() and the addition
2584 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2585 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2586 bn_sub_words() and bn_add_words() except they take arrays with
2590 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2592 *) Cleanse PEM buffers before freeing them since they may contain
2594 [Benjamin Bennett <ben@psc.edu>]
2596 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2597 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2598 authentication-only ciphersuites.
2601 *) Since AES128 and AES256 share a single mask bit in the logic of
2602 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2603 kludge to work properly if AES128 is available and AES256 isn't.
2606 *) Expand security boundary to match 1.1.1 module.
2609 *) Remove redundant features: hash file source, editing of test vectors
2610 modify fipsld to use external fips_premain.c signature.
2613 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2614 run algorithm test programs.
2617 *) Make algorithm test programs more tolerant of whitespace.
2620 *) Have SSL/TLS server implementation tolerate "mismatched" record
2621 protocol version while receiving ClientHello even if the
2622 ClientHello is fragmented. (The server can't insist on the
2623 particular protocol version it has chosen before the ServerHello
2624 message has informed the client about his choice.)
2627 *) Load error codes if they are not already present instead of using a
2628 static variable. This allows them to be cleanly unloaded and reloaded.
2631 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2633 *) Introduce limits to prevent malicious keys being able to
2634 cause a denial of service. (CVE-2006-2940)
2635 [Steve Henson, Bodo Moeller]
2637 *) Fix ASN.1 parsing of certain invalid structures that can result
2638 in a denial of service. (CVE-2006-2937) [Steve Henson]
2640 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2641 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2643 *) Fix SSL client code which could crash if connecting to a
2644 malicious SSLv2 server. (CVE-2006-4343)
2645 [Tavis Ormandy and Will Drewry, Google Security Team]
2647 *) Change ciphersuite string processing so that an explicit
2648 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2649 will no longer include "AES128-SHA"), and any other similar
2650 ciphersuite (same bitmap) from *other* protocol versions (so that
2651 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2652 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2653 changes from 0.9.8b and 0.9.8d.
2656 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2658 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2659 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2661 *) Change the Unix randomness entropy gathering to use poll() when
2662 possible instead of select(), since the latter has some
2663 undesirable limitations.
2664 [Darryl Miles via Richard Levitte and Bodo Moeller]
2666 *) Disable rogue ciphersuites:
2668 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2669 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2670 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2672 The latter two were purportedly from
2673 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2676 Also deactive the remaining ciphersuites from
2677 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2678 unofficial, and the ID has long expired.
2681 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2682 dual-core machines) and other potential thread-safety issues.
2685 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2687 *) Adapt fipsld and the build system to link against the validated FIPS
2688 module in FIPS mode.
2691 *) Fixes for VC++ 2005 build under Windows.
2694 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2695 from a Windows bash shell such as MSYS. It is autodetected from the
2696 "config" script when run from a VC++ environment. Modify standard VC++
2697 build to use fipscanister.o from the GNU make build.
2700 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2702 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2703 The value now differs depending on if you build for FIPS or not.
2704 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2705 safely run with a non-FIPSed libcrypto, as it may crash because of
2706 the difference induced by this change.
2709 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2711 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2712 (part of SSL_OP_ALL). This option used to disable the
2713 countermeasure against man-in-the-middle protocol-version
2714 rollback in the SSL 2.0 server implementation, which is a bad
2715 idea. (CVE-2005-2969)
2717 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2718 for Information Security, National Institute of Advanced Industrial
2719 Science and Technology [AIST], Japan)]
2721 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2722 mainly for FIPS compliance and not fully integrated at this stage.
2725 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2726 the exponentiation using a fixed-length exponent. (Otherwise,
2727 the information leaked through timing could expose the secret key
2728 after many signatures; cf. Bleichenbacher's attack on DSA with
2732 *) Make a new fixed-window mod_exp implementation the default for
2733 RSA, DSA, and DH private-key operations so that the sequence of
2734 squares and multiplies and the memory access pattern are
2735 independent of the particular secret key. This will mitigate
2736 cache-timing and potential related attacks.
2738 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2739 and this is automatically used by BN_mod_exp_mont() if the new flag
2740 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2741 will use this BN flag for private exponents unless the flag
2742 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2743 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2745 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2747 *) Change the client implementation for SSLv23_method() and
2748 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2749 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2750 (Previously, the SSL 2.0 backwards compatible Client Hello
2751 message format would be used even with SSL_OP_NO_SSLv2.)
2754 *) Add support for smime-type MIME parameter in S/MIME messages which some
2758 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2759 a threadsafe manner. Modify rsa code to use new function and add calls
2760 to dsa and dh code (which had race conditions before).
2763 *) Include the fixed error library code in the C error file definitions
2764 instead of fixing them up at runtime. This keeps the error code
2765 structures constant.
2768 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2770 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2773 *) Fixes for newer kerberos headers. NB: the casts are needed because
2774 the 'length' field is signed on one version and unsigned on another
2775 with no (?) obvious way to tell the difference, without these VC++
2776 complains. Also the "definition" of FAR (blank) is no longer included
2777 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2778 some needed definitions.
2781 *) Undo Cygwin change.
2784 *) Added support for proxy certificates according to RFC 3820.
2785 Because they may be a security thread to unaware applications,
2786 they must be explicitely allowed in run-time. See
2787 docs/HOWTO/proxy_certificates.txt for further information.
2790 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2792 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2793 server and client random values. Previously
2794 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2795 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2797 This change has negligible security impact because:
2799 1. Server and client random values still have 24 bytes of pseudo random
2802 2. Server and client random values are sent in the clear in the initial
2805 3. The master secret is derived using the premaster secret (48 bytes in
2806 size for static RSA ciphersuites) as well as client server and random
2809 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2812 [Stephen Henson, reported by UK NISCC]
2814 *) Use Windows randomness collection on Cygwin.
2817 *) Fix hang in EGD/PRNGD query when communication socket is closed
2818 prematurely by EGD/PRNGD.
2819 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2821 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2824 *) Back-port of selected performance improvements from development
2825 branch, as well as improved support for PowerPC platforms.
2828 *) Add lots of checks for memory allocation failure, error codes to indicate
2829 failure and freeing up memory if a failure occurs.
2830 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2832 *) Add new -passin argument to dgst.
2835 *) Perform some character comparisons of different types in X509_NAME_cmp:
2836 this is needed for some certificates that reencode DNs into UTF8Strings
2837 (in violation of RFC3280) and can't or wont issue name rollover
2841 *) Make an explicit check during certificate validation to see that
2842 the CA setting in each certificate on the chain is correct. As a
2843 side effect always do the following basic checks on extensions,
2844 not just when there's an associated purpose to the check:
2846 - if there is an unhandled critical extension (unless the user
2847 has chosen to ignore this fault)
2848 - if the path length has been exceeded (if one is set at all)
2849 - that certain extensions fit the associated purpose (if one has
2853 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2855 *) Avoid a race condition when CRLs are checked in a multi threaded
2856 environment. This would happen due to the reordering of the revoked
2857 entries during signature checking and serial number lookup. Now the
2858 encoding is cached and the serial number sort performed under a lock.
2859 Add new STACK function sk_is_sorted().
2862 *) Add Delta CRL to the extension code.
2865 *) Various fixes to s3_pkt.c so alerts are sent properly.
2866 [David Holmes <d.holmes@f5.com>]
2868 *) Reduce the chances of duplicate issuer name and serial numbers (in
2869 violation of RFC3280) using the OpenSSL certificate creation utilities.
2870 This is done by creating a random 64 bit value for the initial serial
2871 number when a serial number file is created or when a self signed
2872 certificate is created using 'openssl req -x509'. The initial serial
2873 number file is created using 'openssl x509 -next_serial' in CA.pl
2874 rather than being initialized to 1.
2877 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2879 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2880 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2881 [Joe Orton, Steve Henson]
2883 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2885 [Joe Orton, Steve Henson]
2887 *) Make it possible to have multiple active certificates with the same
2888 subject in the CA index file. This is done only if the keyword
2889 'unique_subject' is set to 'no' in the main CA section (default
2890 if 'CA_default') of the configuration file. The value is saved
2891 with the database itself in a separate index attribute file,
2892 named like the index file with '.attr' appended to the name.
2895 *) X509 verify fixes. Disable broken certificate workarounds when
2896 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2897 keyUsage extension present. Don't accept CRLs with unhandled critical
2898 extensions: since verify currently doesn't process CRL extensions this
2899 rejects a CRL with *any* critical extensions. Add new verify error codes
2903 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2904 A clarification of RFC2560 will require the use of OCTET STRINGs and
2905 some implementations cannot handle the current raw format. Since OpenSSL
2906 copies and compares OCSP nonces as opaque blobs without any attempt at
2907 parsing them this should not create any compatibility issues.
2910 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2911 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2912 this HMAC (and other) operations are several times slower than OpenSSL
2916 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2917 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2919 *) Use the correct content when signing type "other".
2922 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2924 *) Fix various bugs revealed by running the NISCC test suite:
2926 Stop out of bounds reads in the ASN1 code when presented with
2927 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2929 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2931 If verify callback ignores invalid public key errors don't try to check
2932 certificate signature with the NULL public key.
2936 *) New -ignore_err option in ocsp application to stop the server
2937 exiting on the first error in a request.
2940 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2941 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2945 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2946 extra data after the compression methods not only for TLS 1.0
2947 but also for SSL 3.0 (as required by the specification).
2948 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2950 *) Change X509_certificate_type() to mark the key as exported/exportable
2951 when it's 512 *bits* long, not 512 bytes.
2954 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2955 blocks during encryption.
2958 *) Various fixes to base64 BIO and non blocking I/O. On write
2959 flushes were not handled properly if the BIO retried. On read
2960 data was not being buffered properly and had various logic bugs.
2961 This also affects blocking I/O when the data being decoded is a
2965 *) Various S/MIME bugfixes and compatibility changes:
2966 output correct application/pkcs7 MIME type if
2967 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2968 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2969 of files as .eml work). Correctly handle very long lines in MIME
2973 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2975 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2976 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2977 a protocol version number mismatch like a decryption error
2978 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2981 *) Turn on RSA blinding by default in the default implementation
2982 to avoid a timing attack. Applications that don't want it can call
2983 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2984 They would be ill-advised to do so in most cases.
2985 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2987 *) Change RSA blinding code so that it works when the PRNG is not
2988 seeded (in this case, the secret RSA exponent is abused as
2989 an unpredictable seed -- if it is not unpredictable, there
2990 is no point in blinding anyway). Make RSA blinding thread-safe
2991 by remembering the creator's thread ID in rsa->blinding and
2992 having all other threads use local one-time blinding factors
2993 (this requires more computation than sharing rsa->blinding, but
2994 avoids excessive locking; and if an RSA object is not shared
2995 between threads, blinding will still be very fast).
2998 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2999 ENGINE as defaults for all supported algorithms irrespective of
3000 the 'flags' parameter. 'flags' is now honoured, so applications
3001 should make sure they are passing it correctly.
3004 *) Target "mingw" now allows native Windows code to be generated in
3005 the Cygwin environment as well as with the MinGW compiler.
3008 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3010 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3011 via timing by performing a MAC computation even if incorrrect
3012 block cipher padding has been found. This is a countermeasure
3013 against active attacks where the attacker has to distinguish
3014 between bad padding and a MAC verification error. (CVE-2003-0078)
3016 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3017 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3018 Martin Vuagnoux (EPFL, Ilion)]
3020 *) Make the no-err option work as intended. The intention with no-err
3021 is not to have the whole error stack handling routines removed from
3022 libcrypto, it's only intended to remove all the function name and
3023 reason texts, thereby removing some of the footprint that may not
3024 be interesting if those errors aren't displayed anyway.
3026 NOTE: it's still possible for any application or module to have it's
3027 own set of error texts inserted. The routines are there, just not
3028 used by default when no-err is given.
3031 *) Add support for FreeBSD on IA64.
3032 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3034 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3035 Kerberos function mit_des_cbc_cksum(). Before this change,
3036 the value returned by DES_cbc_cksum() was like the one from
3037 mit_des_cbc_cksum(), except the bytes were swapped.
3038 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3040 *) Allow an application to disable the automatic SSL chain building.
3041 Before this a rather primitive chain build was always performed in
3042 ssl3_output_cert_chain(): an application had no way to send the
3043 correct chain if the automatic operation produced an incorrect result.
3045 Now the chain builder is disabled if either:
3047 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3049 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3051 The reasoning behind this is that an application would not want the
3052 auto chain building to take place if extra chain certificates are
3053 present and it might also want a means of sending no additional
3054 certificates (for example the chain has two certificates and the
3058 *) Add the possibility to build without the ENGINE framework.
3059 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3061 *) Under Win32 gmtime() can return NULL: check return value in
3062 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3065 *) DSA routines: under certain error conditions uninitialized BN objects
3066 could be freed. Solution: make sure initialization is performed early
3067 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3068 Nils Larsch <nla@trustcenter.de> via PR#459)
3071 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3072 checked on reconnect on the client side, therefore session resumption
3073 could still fail with a "ssl session id is different" error. This
3074 behaviour is masked when SSL_OP_ALL is used due to
3075 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3076 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3077 followup to PR #377.
3080 *) IA-32 assembler support enhancements: unified ELF targets, support
3081 for SCO/Caldera platforms, fix for Cygwin shared build.
3084 *) Add support for FreeBSD on sparc64. As a consequence, support for
3085 FreeBSD on non-x86 processors is separate from x86 processors on
3086 the config script, much like the NetBSD support.
3087 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3089 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3091 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3094 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3095 code (06) was taken as the first octet of the session ID and the last
3096 octet was ignored consequently. As a result SSLv2 client side session
3097 caching could not have worked due to the session ID mismatch between
3099 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3103 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3104 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3108 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3109 seems that in spite of existing for more than a year, many application
3110 author have done nothing to provide the necessary callbacks, which
3111 means that this particular engine will not work properly anywhere.
3112 This is a very unfortunate situation which forces us, in the name
3113 of usability, to give the hw_ncipher.c a static lock, which is part
3115 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3116 appear in 0.9.8 or later. We EXPECT application authors to have
3117 dealt properly with this when 0.9.8 is released (unless we actually
3118 make such changes in the libcrypto locking code that changes will
3119 have to be made anyway).
3122 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3123 octets have been read, EOF or an error occurs. Without this change
3124 some truncated ASN1 structures will not produce an error.
3127 *) Disable Heimdal support, since it hasn't been fully implemented.
3128 Still give the possibility to force the use of Heimdal, but with
3129 warnings and a request that patches get sent to openssl-dev.
3132 *) Add the VC-CE target, introduce the WINCE sysname, and add
3133 INSTALL.WCE and appropriate conditionals to make it build.
3134 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3136 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3137 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3138 edit numbers of the version.
3139 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3141 *) Introduce safe string copy and catenation functions
3142 (BUF_strlcpy() and BUF_strlcat()).
3143 [Ben Laurie (CHATS) and Richard Levitte]
3145 *) Avoid using fixed-size buffers for one-line DNs.
3146 [Ben Laurie (CHATS)]
3148 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3149 resizing buffers containing secrets, and use where appropriate.
3150 [Ben Laurie (CHATS)]
3152 *) Avoid using fixed size buffers for configuration file location.
3153 [Ben Laurie (CHATS)]
3155 *) Avoid filename truncation for various CA files.
3156 [Ben Laurie (CHATS)]
3158 *) Use sizeof in preference to magic numbers.
3159 [Ben Laurie (CHATS)]
3161 *) Avoid filename truncation in cert requests.
3162 [Ben Laurie (CHATS)]
3164 *) Add assertions to check for (supposedly impossible) buffer
3166 [Ben Laurie (CHATS)]
3168 *) Don't cache truncated DNS entries in the local cache (this could
3169 potentially lead to a spoofing attack).
3170 [Ben Laurie (CHATS)]
3172 *) Fix various buffers to be large enough for hex/decimal
3173 representations in a platform independent manner.
3174 [Ben Laurie (CHATS)]
3176 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3177 resizing buffers containing secrets, and use where appropriate.
3178 [Ben Laurie (CHATS)]
3180 *) Add BIO_indent() to avoid much slightly worrying code to do
3182 [Ben Laurie (CHATS)]
3184 *) Convert sprintf()/BIO_puts() to BIO_printf().
3185 [Ben Laurie (CHATS)]
3187 *) buffer_gets() could terminate with the buffer only half
3189 [Ben Laurie (CHATS)]
3191 *) Add assertions to prevent user-supplied crypto functions from
3192 overflowing internal buffers by having large block sizes, etc.
3193 [Ben Laurie (CHATS)]
3195 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3197 [Ben Laurie (CHATS)]
3199 *) Eliminate unused copy of key in RC4.
3200 [Ben Laurie (CHATS)]
3202 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3203 [Ben Laurie (CHATS)]
3205 *) Fix off-by-one error in EGD path.
3206 [Ben Laurie (CHATS)]
3208 *) If RANDFILE path is too long, ignore instead of truncating.
3209 [Ben Laurie (CHATS)]
3211 *) Eliminate unused and incorrectly sized X.509 structure
3213 [Ben Laurie (CHATS)]
3215 *) Eliminate unused and dangerous function knumber().
3216 [Ben Laurie (CHATS)]
3218 *) Eliminate unused and dangerous structure, KSSL_ERR.
3219 [Ben Laurie (CHATS)]
3221 *) Protect against overlong session ID context length in an encoded
3222 session object. Since these are local, this does not appear to be
3224 [Ben Laurie (CHATS)]
3226 *) Change from security patch (see 0.9.6e below) that did not affect
3227 the 0.9.6 release series:
3229 Remote buffer overflow in SSL3 protocol - an attacker could
3230 supply an oversized master key in Kerberos-enabled versions.
3232 [Ben Laurie (CHATS)]
3234 *) Change the SSL kerb5 codes to match RFC 2712.
3237 *) Make -nameopt work fully for req and add -reqopt switch.
3238 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3240 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3241 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3243 *) Make sure tests can be performed even if the corresponding algorithms
3244 have been removed entirely. This was also the last step to make
3245 OpenSSL compilable with DJGPP under all reasonable conditions.
3246 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3248 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3249 to allow version independent disabling of normally unselected ciphers,
3250 which may be activated as a side-effect of selecting a single cipher.
3252 (E.g., cipher list string "RSA" enables ciphersuites that are left
3253 out of "ALL" because they do not provide symmetric encryption.
3254 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3255 [Lutz Jaenicke, Bodo Moeller]
3257 *) Add appropriate support for separate platform-dependent build
3258 directories. The recommended way to make a platform-dependent
3259 build directory is the following (tested on Linux), maybe with
3262 # Place yourself outside of the OpenSSL source tree. In
3263 # this example, the environment variable OPENSSL_SOURCE
3264 # is assumed to contain the absolute OpenSSL source directory.
3265 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3266 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3267 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3268 mkdir -p `dirname $F`
3269 ln -s $OPENSSL_SOURCE/$F $F
3272 To be absolutely sure not to disturb the source tree, a "make clean"
3273 is a good thing. If it isn't successfull, don't worry about it,
3274 it probably means the source directory is very clean.
3277 *) Make sure any ENGINE control commands make local copies of string
3278 pointers passed to them whenever necessary. Otherwise it is possible
3279 the caller may have overwritten (or deallocated) the original string
3280 data when a later ENGINE operation tries to use the stored values.
3281 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3283 *) Improve diagnostics in file reading and command-line digests.
3284 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3286 *) Add AES modes CFB and OFB to the object database. Correct an
3287 error in AES-CFB decryption.
3290 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3291 allows existing EVP_CIPHER_CTX structures to be reused after
3292 calling EVP_*Final(). This behaviour is used by encryption
3293 BIOs and some applications. This has the side effect that
3294 applications must explicitly clean up cipher contexts with
3295 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3298 *) Check the values of dna and dnb in bn_mul_recursive before calling
3299 bn_mul_comba (a non zero value means the a or b arrays do not contain
3300 n2 elements) and fallback to bn_mul_normal if either is not zero.
3303 *) Fix escaping of non-ASCII characters when using the -subj option
3304 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3307 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3308 form for "surname", serialNumber has no short form.
3309 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3310 therefore remove "mail" short name for "internet 7".
3311 The OID for unique identifiers in X509 certificates is
3312 x500UniqueIdentifier, not uniqueIdentifier.
3313 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3316 *) Add an "init" command to the ENGINE config module and auto initialize
3317 ENGINEs. Without any "init" command the ENGINE will be initialized
3318 after all ctrl commands have been executed on it. If init=1 the
3319 ENGINE is initailized at that point (ctrls before that point are run
3320 on the uninitialized ENGINE and after on the initialized one). If
3321 init=0 then the ENGINE will not be iniatialized at all.
3324 *) Fix the 'app_verify_callback' interface so that the user-defined
3325 argument is actually passed to the callback: In the
3326 SSL_CTX_set_cert_verify_callback() prototype, the callback
3327 declaration has been changed from
3330 int (*cb)(X509_STORE_CTX *,void *);
3331 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3332 i=s->ctx->app_verify_callback(&ctx)
3333 has been changed into
3334 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3336 To update applications using SSL_CTX_set_cert_verify_callback(),
3337 a dummy argument can be added to their callback functions.
3338 [D. K. Smetters <smetters@parc.xerox.com>]
3340 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3341 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3343 *) Add and OPENSSL_LOAD_CONF define which will cause
3344 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3345 This allows older applications to transparently support certain
3346 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3347 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3348 load the config file and OPENSSL_add_all_algorithms_conf() which will
3349 always load it have also been added.
3352 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3353 Adjust NIDs and EVP layer.
3354 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3356 *) Config modules support in openssl utility.
3358 Most commands now load modules from the config file,
3359 though in a few (such as version) this isn't done
3360 because it couldn't be used for anything.
3362 In the case of ca and req the config file used is
3363 the same as the utility itself: that is the -config
3364 command line option can be used to specify an
3368 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3369 use "openssl_conf" if filename is NULL use default openssl config file.
3372 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3373 config section name. Add a new flag to tolerate a missing config file
3374 and move code to CONF_modules_load_file().
3377 *) Support for crypto accelerator cards from Accelerated Encryption
3378 Processing, www.aep.ie. (Use engine 'aep')
3379 The support was copied from 0.9.6c [engine] and adapted/corrected
3380 to work with the new engine framework.
3381 [AEP Inc. and Richard Levitte]
3383 *) Support for SureWare crypto accelerator cards from Baltimore
3384 Technologies. (Use engine 'sureware')
3385 The support was copied from 0.9.6c [engine] and adapted
3386 to work with the new engine framework.
3389 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3390 make the newer ENGINE framework commands for the CHIL engine work.
3391 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3393 *) Make it possible to produce shared libraries on ReliantUNIX.
3394 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3396 *) Add the configuration target debug-linux-ppro.
3397 Make 'openssl rsa' use the general key loading routines
3398 implemented in apps.c, and make those routines able to
3399 handle the key format FORMAT_NETSCAPE and the variant
3401 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3403 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3404 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3406 *) Add -keyform to rsautl, and document -engine.
3407 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3409 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3410 BIO_R_NO_SUCH_FILE error code rather than the generic
3411 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3414 *) Add new functions
3416 ERR_peek_last_error_line
3417 ERR_peek_last_error_line_data.
3418 These are similar to
3421 ERR_peek_error_line_data,
3422 but report on the latest error recorded rather than the first one
3423 still in the error queue.
3424 [Ben Laurie, Bodo Moeller]
3426 *) default_algorithms option in ENGINE config module. This allows things
3428 default_algorithms = ALL
3429 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3432 *) Prelminary ENGINE config module.
3435 *) New experimental application configuration code.
3438 *) Change the AES code to follow the same name structure as all other
3439 symmetric ciphers, and behave the same way. Move everything to
3440 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3441 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3443 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3444 [Ben Laurie and Theo de Raadt]
3446 *) Add option to output public keys in req command.
3447 [Massimiliano Pala madwolf@openca.org]
3449 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3450 (up to about 10% better than before for P-192 and P-224).
3453 *) New functions/macros
3455 SSL_CTX_set_msg_callback(ctx, cb)
3456 SSL_CTX_set_msg_callback_arg(ctx, arg)
3457 SSL_set_msg_callback(ssl, cb)
3458 SSL_set_msg_callback_arg(ssl, arg)
3460 to request calling a callback function
3462 void cb(int write_p, int version, int content_type,
3463 const void *buf, size_t len, SSL *ssl, void *arg)
3465 whenever a protocol message has been completely received
3466 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3467 protocol version according to which the SSL library interprets
3468 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3469 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3470 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3471 specification (change_cipher_spec(20), alert(21), handshake(22)).
3472 'buf' and 'len' point to the actual message, 'ssl' to the
3473 SSL object, and 'arg' is the application-defined value set by
3474 SSL[_CTX]_set_msg_callback_arg().
3476 'openssl s_client' and 'openssl s_server' have new '-msg' options
3477 to enable a callback that displays all protocol messages.
3480 *) Change the shared library support so shared libraries are built as
3481 soon as the corresponding static library is finished, and thereby get
3482 openssl and the test programs linked against the shared library.
3483 This still only happens when the keyword "shard" has been given to
3484 the configuration scripts.
3486 NOTE: shared library support is still an experimental thing, and
3487 backward binary compatibility is still not guaranteed.
3488 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3490 *) Add support for Subject Information Access extension.
3491 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3493 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3494 additional bytes when new memory had to be allocated, not just
3495 when reusing an existing buffer.
3498 *) New command line and configuration option 'utf8' for the req command.
3499 This allows field values to be specified as UTF8 strings.
3502 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3503 runs for the former and machine-readable output for the latter.
3506 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3507 of the e-mail address in the DN (i.e., it will go into a certificate
3508 extension only). The new configuration file option 'email_in_dn = no'
3509 has the same effect.
3510 [Massimiliano Pala madwolf@openca.org]
3512 *) Change all functions with names starting with des_ to be starting
3513 with DES_ instead. Add wrappers that are compatible with libdes,
3514 but are named _ossl_old_des_*. Finally, add macros that map the
3515 des_* symbols to the corresponding _ossl_old_des_* if libdes
3516 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3517 desired, the des_* symbols will be mapped to DES_*, with one
3520 Since we provide two compatibility mappings, the user needs to
3521 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3522 compatibility is desired. The default (i.e., when that macro
3523 isn't defined) is OpenSSL 0.9.6c compatibility.
3525 There are also macros that enable and disable the support of old
3526 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3527 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3528 are defined, the default will apply: to support the old des routines.
3530 In either case, one must include openssl/des.h to get the correct
3531 definitions. Do not try to just include openssl/des_old.h, that
3534 NOTE: This is a major break of an old API into a new one. Software
3535 authors are encouraged to switch to the DES_ style functions. Some
3536 time in the future, des_old.h and the libdes compatibility functions
3537 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3538 default), and then completely removed.
3541 *) Test for certificates which contain unsupported critical extensions.
3542 If such a certificate is found during a verify operation it is
3543 rejected by default: this behaviour can be overridden by either
3544 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3545 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3546 X509_supported_extension() has also been added which returns 1 if a
3547 particular extension is supported.
3550 *) Modify the behaviour of EVP cipher functions in similar way to digests
3551 to retain compatibility with existing code.
3554 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3555 compatibility with existing code. In particular the 'ctx' parameter does
3556 not have to be to be initialized before the call to EVP_DigestInit() and
3557 it is tidied up after a call to EVP_DigestFinal(). New function
3558 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3559 EVP_MD_CTX_copy() changed to not require the destination to be
3560 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3561 requires the destination to be valid.
3563 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3564 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3567 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3568 so that complete 'Handshake' protocol structures are kept in memory
3569 instead of overwriting 'msg_type' and 'length' with 'body' data.
3572 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3573 [Massimo Santin via Richard Levitte]
3575 *) Major restructuring to the underlying ENGINE code. This includes
3576 reduction of linker bloat, separation of pure "ENGINE" manipulation
3577 (initialisation, etc) from functionality dealing with implementations
3578 of specific crypto iterfaces. This change also introduces integrated
3579 support for symmetric ciphers and digest implementations - so ENGINEs
3580 can now accelerate these by providing EVP_CIPHER and EVP_MD
3581 implementations of their own. This is detailed in crypto/engine/README
3582 as it couldn't be adequately described here. However, there are a few
3583 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3584 were changed in the original introduction of ENGINE code have now
3585 reverted back - the hooking from this code to ENGINE is now a good
3586 deal more passive and at run-time, operations deal directly with
3587 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3588 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3589 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3590 they were not being used by the framework as there is no concept of a
3591 BIGNUM_METHOD and they could not be generalised to the new
3592 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3593 ENGINE_cpy() has been removed as it cannot be consistently defined in
3597 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3600 *) Change mkdef.pl to sort symbols that get the same entry number,
3601 and make sure the automatically generated functions ERR_load_*
3602 become part of libeay.num as well.
3605 *) New function SSL_renegotiate_pending(). This returns true once
3606 renegotiation has been requested (either SSL_renegotiate() call
3607 or HelloRequest/ClientHello receveived from the peer) and becomes
3608 false once a handshake has been completed.
3609 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3610 sends a HelloRequest, but does not ensure that a handshake takes
3611 place. SSL_renegotiate_pending() is useful for checking if the
3612 client has followed the request.)
3615 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3616 By default, clients may request session resumption even during
3617 renegotiation (if session ID contexts permit); with this option,
3618 session resumption is possible only in the first handshake.
3620 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3621 more bits available for options that should not be part of
3622 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3625 *) Add some demos for certificate and certificate request creation.
3628 *) Make maximum certificate chain size accepted from the peer application
3629 settable (SSL*_get/set_max_cert_list()), as proposed by
3630 "Douglas E. Engert" <deengert@anl.gov>.
3633 *) Add support for shared libraries for Unixware-7
3634 (Boyd Lynn Gerber <gerberb@zenez.com>).
3637 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3638 be done prior to destruction. Use this to unload error strings from
3639 ENGINEs that load their own error strings. NB: This adds two new API
3640 functions to "get" and "set" this destroy handler in an ENGINE.
3643 *) Alter all existing ENGINE implementations (except "openssl" and
3644 "openbsd") to dynamically instantiate their own error strings. This
3645 makes them more flexible to be built both as statically-linked ENGINEs
3646 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3647 Also, add stub code to each that makes building them as self-contained
3648 shared-libraries easier (see README.ENGINE).
3651 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3652 implementations into applications that are completely implemented in
3653 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3654 commands that can be used to configure what shared-library to load and
3655 to control aspects of the way it is handled. Also, made an update to
3656 the README.ENGINE file that brings its information up-to-date and
3657 provides some information and instructions on the "dynamic" ENGINE
3658 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3661 *) Make it possible to unload ranges of ERR strings with a new
3662 "ERR_unload_strings" function.
3665 *) Add a copy() function to EVP_MD.
3668 *) Make EVP_MD routines take a context pointer instead of just the
3669 md_data void pointer.
3672 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3673 that the digest can only process a single chunk of data
3674 (typically because it is provided by a piece of
3675 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3676 is only going to provide a single chunk of data, and hence the
3677 framework needn't accumulate the data for oneshot drivers.
3680 *) As with "ERR", make it possible to replace the underlying "ex_data"
3681 functions. This change also alters the storage and management of global
3682 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3683 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3684 index counters. The API functions that use this state have been changed
3685 to take a "class_index" rather than pointers to the class's local STACK
3686 and counter, and there is now an API function to dynamically create new
3687 classes. This centralisation allows us to (a) plug a lot of the
3688 thread-safety problems that existed, and (b) makes it possible to clean
3689 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3690 such data would previously have always leaked in application code and
3691 workarounds were in place to make the memory debugging turn a blind eye
3692 to it. Application code that doesn't use this new function will still
3693 leak as before, but their memory debugging output will announce it now
3694 rather than letting it slide.
3696 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3697 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3698 has a return value to indicate success or failure.
3701 *) Make it possible to replace the underlying "ERR" functions such that the
3702 global state (2 LHASH tables and 2 locks) is only used by the "default"
3703 implementation. This change also adds two functions to "get" and "set"
3704 the implementation prior to it being automatically set the first time
3705 any other ERR function takes place. Ie. an application can call "get",
3706 pass the return value to a module it has just loaded, and that module
3707 can call its own "set" function using that value. This means the
3708 module's "ERR" operations will use (and modify) the error state in the
3709 application and not in its own statically linked copy of OpenSSL code.
3712 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3713 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3714 the operation, and provides a more encapsulated way for external code
3715 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3716 to use these functions rather than manually incrementing the counts.
3718 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3721 *) Add EVP test program.
3724 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3727 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3728 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3729 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3730 These allow a CRL to be built without having to access X509_CRL fields
3731 directly. Modify 'ca' application to use new functions.
3734 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3735 bug workarounds. Rollback attack detection is a security feature.
3736 The problem will only arise on OpenSSL servers when TLSv1 is not
3737 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3738 Software authors not wanting to support TLSv1 will have special reasons
3739 for their choice and can explicitly enable this option.
3740 [Bodo Moeller, Lutz Jaenicke]
3742 *) Rationalise EVP so it can be extended: don't include a union of
3743 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3744 (similar to those existing for EVP_CIPHER_CTX).
3749 EVP_MD_CTX_init(&md); /* new function call */
3750 EVP_DigestInit(&md, EVP_sha1());
3751 EVP_DigestUpdate(&md, in, len);
3752 EVP_DigestFinal(&md, out, NULL);
3753 EVP_MD_CTX_cleanup(&md); /* new function call */
3757 *) Make DES key schedule conform to the usual scheme, as well as
3758 correcting its structure. This means that calls to DES functions
3759 now have to pass a pointer to a des_key_schedule instead of a
3760 plain des_key_schedule (which was actually always a pointer
3763 des_key_schedule ks;
3765 des_set_key_checked(..., &ks);
3766 des_ncbc_encrypt(..., &ks, ...);
3768 (Note that a later change renames 'des_...' into 'DES_...'.)
3771 *) Initial reduction of linker bloat: the use of some functions, such as
3772 PEM causes large amounts of unused functions to be linked in due to
3773 poor organisation. For example pem_all.c contains every PEM function
3774 which has a knock on effect of linking in large amounts of (unused)
3775 ASN1 code. Grouping together similar functions and splitting unrelated
3776 functions prevents this.
3779 *) Cleanup of EVP macros.
3782 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3783 correct _ecb suffix.
3786 *) Add initial OCSP responder support to ocsp application. The
3787 revocation information is handled using the text based index
3788 use by the ca application. The responder can either handle
3789 requests generated internally, supplied in files (for example
3790 via a CGI script) or using an internal minimal server.
3793 *) Add configuration choices to get zlib compression for TLS.
3796 *) Changes to Kerberos SSL for RFC 2712 compliance:
3797 1. Implemented real KerberosWrapper, instead of just using
3798 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3799 2. Implemented optional authenticator field of KerberosWrapper.
3801 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3802 and authenticator structs; see crypto/krb5/.
3804 Generalized Kerberos calls to support multiple Kerberos libraries.
3805 [Vern Staats <staatsvr@asc.hpc.mil>,
3806 Jeffrey Altman <jaltman@columbia.edu>
3807 via Richard Levitte]
3809 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3810 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3811 values for each of the key sizes rather than having just
3812 parameters (and 'speed' generating keys each time).
3815 *) Speed up EVP routines.
3818 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3819 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3820 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3821 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3823 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3824 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3825 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3828 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3830 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3833 *) Added the OS2-EMX target.
3834 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3836 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3837 to support NCONF routines in extension code. New function CONF_set_nconf()
3838 to allow functions which take an NCONF to also handle the old LHASH
3839 structure: this means that the old CONF compatible routines can be
3840 retained (in particular wrt extensions) without having to duplicate the
3841 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3844 *) Enhance the general user interface with mechanisms for inner control
3845 and with possibilities to have yes/no kind of prompts.
3848 *) Change all calls to low level digest routines in the library and
3849 applications to use EVP. Add missing calls to HMAC_cleanup() and
3850 don't assume HMAC_CTX can be copied using memcpy().
3851 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3853 *) Add the possibility to control engines through control names but with
3854 arbitrary arguments instead of just a string.
3855 Change the key loaders to take a UI_METHOD instead of a callback
3856 function pointer. NOTE: this breaks binary compatibility with earlier
3857 versions of OpenSSL [engine].
3858 Adapt the nCipher code for these new conditions and add a card insertion
3862 *) Enhance the general user interface with mechanisms to better support
3863 dialog box interfaces, application-defined prompts, the possibility
3864 to use defaults (for example default passwords from somewhere else)
3865 and interrupts/cancellations.
3868 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3869 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3872 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3873 tidy up some unnecessarily weird code in 'sk_new()').
3874 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3876 *) Change the key loading routines for ENGINEs to use the same kind
3877 callback (pem_password_cb) as all other routines that need this
3881 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3882 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3883 than this minimum value is recommended.
3886 *) New random seeder for OpenVMS, using the system process statistics
3887 that are easily reachable.
3890 *) Windows apparently can't transparently handle global
3891 variables defined in DLLs. Initialisations such as:
3893 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3895 wont compile. This is used by the any applications that need to
3896 declare their own ASN1 modules. This was fixed by adding the option
3897 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3898 needed for static libraries under Win32.
3901 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3902 setting of purpose and trust fields. New X509_STORE trust and
3903 purpose functions and tidy up setting in other SSL functions.
3906 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3907 structure. These are inherited by X509_STORE_CTX when it is
3908 initialised. This allows various defaults to be set in the
3909 X509_STORE structure (such as flags for CRL checking and custom
3910 purpose or trust settings) for functions which only use X509_STORE_CTX
3911 internally such as S/MIME.
3913 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3914 trust settings if they are not set in X509_STORE. This allows X509_STORE
3915 purposes and trust (in S/MIME for example) to override any set by default.
3917 Add command line options for CRL checking to smime, s_client and s_server
3921 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3922 are set then the CRL is looked up in the X509_STORE structure and
3923 its validity and signature checked, then if the certificate is found
3924 in the CRL the verify fails with a revoked error.
3926 Various new CRL related callbacks added to X509_STORE_CTX structure.
3928 Command line options added to 'verify' application to support this.
3930 This needs some additional work, such as being able to handle multiple
3931 CRLs with different times, extension based lookup (rather than just
3932 by subject name) and ultimately more complete V2 CRL extension
3936 *) Add a general user interface API (crypto/ui/). This is designed
3937 to replace things like des_read_password and friends (backward
3938 compatibility functions using this new API are provided).
3939 The purpose is to remove prompting functions from the DES code
3940 section as well as provide for prompting through dialog boxes in
3941 a window system and the like.
3944 *) Add "ex_data" support to ENGINE so implementations can add state at a
3945 per-structure level rather than having to store it globally.
3948 *) Make it possible for ENGINE structures to be copied when retrieved by
3949 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3950 This causes the "original" ENGINE structure to act like a template,
3951 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3952 operational state can be localised to each ENGINE structure, despite the
3953 fact they all share the same "methods". New ENGINE structures returned in
3954 this case have no functional references and the return value is the single
3955 structural reference. This matches the single structural reference returned
3956 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3960 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3961 needs to match any other type at all we need to manually clear the
3965 *) Changes to the "openssl engine" utility to include;
3966 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3967 about an ENGINE's available control commands.
3968 - executing control commands from command line arguments using the
3969 '-pre' and '-post' switches. '-post' is only used if '-t' is
3970 specified and the ENGINE is successfully initialised. The syntax for
3971 the individual commands are colon-separated, for example;
3972 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3975 *) New dynamic control command support for ENGINEs. ENGINEs can now
3976 declare their own commands (numbers), names (strings), descriptions,
3977 and input types for run-time discovery by calling applications. A
3978 subset of these commands are implicitly classed as "executable"
3979 depending on their input type, and only these can be invoked through
3980 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3981 can be based on user input, config files, etc). The distinction is
3982 that "executable" commands cannot return anything other than a boolean
3983 result and can only support numeric or string input, whereas some
3984 discoverable commands may only be for direct use through
3985 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3986 pointers, or other custom uses. The "executable" commands are to
3987 support parameterisations of ENGINE behaviour that can be
3988 unambiguously defined by ENGINEs and used consistently across any
3989 OpenSSL-based application. Commands have been added to all the
3990 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3991 control over shared-library paths without source code alterations.
3994 *) Changed all ENGINE implementations to dynamically allocate their
3995 ENGINEs rather than declaring them statically. Apart from this being
3996 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3997 this also allows the implementations to compile without using the
3998 internal engine_int.h header.
4001 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4002 'const' value. Any code that should be able to modify a RAND_METHOD
4003 should already have non-const pointers to it (ie. they should only
4004 modify their own ones).
4007 *) Made a variety of little tweaks to the ENGINE code.
4008 - "atalla" and "ubsec" string definitions were moved from header files
4009 to C code. "nuron" string definitions were placed in variables
4010 rather than hard-coded - allowing parameterisation of these values
4011 later on via ctrl() commands.
4012 - Removed unused "#if 0"'d code.
4013 - Fixed engine list iteration code so it uses ENGINE_free() to release
4014 structural references.
4015 - Constified the RAND_METHOD element of ENGINE structures.
4016 - Constified various get/set functions as appropriate and added
4017 missing functions (including a catch-all ENGINE_cpy that duplicates
4018 all ENGINE values onto a new ENGINE except reference counts/state).
4019 - Removed NULL parameter checks in get/set functions. Setting a method
4020 or function to NULL is a way of cancelling out a previously set
4021 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4022 and doesn't justify the extra error symbols and code.
4023 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4024 flags from engine_int.h to engine.h.
4025 - Changed prototypes for ENGINE handler functions (init(), finish(),
4026 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4029 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4030 to the algorithm using long division. The binary algorithm can be
4031 used only if the modulus is odd. On 32-bit systems, it is faster
4032 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4033 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4034 up to 450 bits. In 64-bit environments, the binary algorithm
4035 appears to be advantageous for much longer moduli; here we use it
4036 for moduli up to 2048 bits.
4039 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4040 could not support the combine flag in choice fields.
4043 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4044 extensions from a certificate request to the certificate.
4047 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4048 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4049 file: this allows the display of the certificate about to be
4050 signed to be customised, to allow certain fields to be included
4051 or excluded and extension details. The old system didn't display
4052 multicharacter strings properly, omitted fields not in the policy
4053 and couldn't display additional details such as extensions.
4056 *) Function EC_POINTs_mul for multiple scalar multiplication
4057 of an arbitrary number of elliptic curve points
4058 \sum scalars[i]*points[i],
4059 optionally including the generator defined for the EC_GROUP:
4060 scalar*generator + \sum scalars[i]*points[i].
4062 EC_POINT_mul is a simple wrapper function for the typical case
4063 that the point list has just one item (besides the optional
4067 *) First EC_METHODs for curves over GF(p):
4069 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4070 operations and provides various method functions that can also
4071 operate with faster implementations of modular arithmetic.
4073 EC_GFp_mont_method() reuses most functions that are part of
4074 EC_GFp_simple_method, but uses Montgomery arithmetic.
4076 [Bodo Moeller; point addition and point doubling
4077 implementation directly derived from source code provided by
4078 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4080 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4081 crypto/ec/ec_lib.c):
4083 Curves are EC_GROUP objects (with an optional group generator)
4084 based on EC_METHODs that are built into the library.
4086 Points are EC_POINT objects based on EC_GROUP objects.
4088 Most of the framework would be able to handle curves over arbitrary
4089 finite fields, but as there are no obvious types for fields other
4090 than GF(p), some functions are limited to that for now.
4093 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4094 that the file contains a complete HTTP response.
4097 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4098 change the def and num file printf format specifier from "%-40sXXX"
4099 to "%-39s XXX". The latter will always guarantee a space after the
4100 field while the former will cause them to run together if the field
4101 is 40 of more characters long.
4104 *) Constify the cipher and digest 'method' functions and structures
4105 and modify related functions to take constant EVP_MD and EVP_CIPHER
4109 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4110 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4113 *) Modify EVP_Digest*() routines so they now return values. Although the
4114 internal software routines can never fail additional hardware versions
4118 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4120 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4121 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4124 ERR_R_NESTED_ASN1_ERROR
4126 ERR_R_MISSING_ASN1_EOS
4127 were 4 .. 9, conflicting with
4128 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4130 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4131 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4133 Add new error code 'ERR_R_INTERNAL_ERROR'.
4136 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4140 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4141 sets the subject name for a new request or supersedes the
4142 subject name in a given request. Formats that can be parsed are
4143 'CN=Some Name, OU=myOU, C=IT'
4145 'CN=Some Name/OU=myOU/C=IT'.
4147 Add options '-batch' and '-verbose' to 'openssl req'.
4148 [Massimiliano Pala <madwolf@hackmasters.net>]
4150 *) Introduce the possibility to access global variables through
4151 functions on platform were that's the best way to handle exporting
4152 global variables in shared libraries. To enable this functionality,
4153 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4154 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4155 is normally done by Configure or something similar).
4157 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4158 in the source file (foo.c) like this:
4160 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4161 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4163 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4164 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4166 OPENSSL_DECLARE_GLOBAL(int,foo);
4167 #define foo OPENSSL_GLOBAL_REF(foo)
4168 OPENSSL_DECLARE_GLOBAL(double,bar);
4169 #define bar OPENSSL_GLOBAL_REF(bar)
4171 The #defines are very important, and therefore so is including the
4172 header file everywhere where the defined globals are used.
4174 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4175 of ASN.1 items, but that structure is a bit different.
4177 The largest change is in util/mkdef.pl which has been enhanced with
4178 better and easier to understand logic to choose which symbols should
4179 go into the Windows .def files as well as a number of fixes and code
4180 cleanup (among others, algorithm keywords are now sorted
4181 lexicographically to avoid constant rewrites).
4184 *) In BN_div() keep a copy of the sign of 'num' before writing the
4185 result to 'rm' because if rm==num the value will be overwritten
4186 and produce the wrong result if 'num' is negative: this caused
4187 problems with BN_mod() and BN_nnmod().
4190 *) Function OCSP_request_verify(). This checks the signature on an
4191 OCSP request and verifies the signer certificate. The signer
4192 certificate is just checked for a generic purpose and OCSP request
4196 *) Add OCSP_check_validity() function to check the validity of OCSP
4197 responses. OCSP responses are prepared in real time and may only
4198 be a few seconds old. Simply checking that the current time lies
4199 between thisUpdate and nextUpdate max reject otherwise valid responses
4200 caused by either OCSP responder or client clock inaccuracy. Instead
4201 we allow thisUpdate and nextUpdate to fall within a certain period of
4202 the current time. The age of the response can also optionally be
4203 checked. Two new options -validity_period and -status_age added to
4207 *) If signature or public key algorithm is unrecognized print out its
4208 OID rather that just UNKNOWN.
4211 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4212 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4213 ID to be generated from the issuer certificate alone which can then be
4214 passed to OCSP_id_issuer_cmp().
4217 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4218 ASN1 modules to export functions returning ASN1_ITEM pointers
4219 instead of the ASN1_ITEM structures themselves. This adds several
4220 new macros which allow the underlying ASN1 function/structure to
4221 be accessed transparently. As a result code should not use ASN1_ITEM
4222 references directly (such as &X509_it) but instead use the relevant
4223 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4224 use of the new ASN1 code on platforms where exporting structures
4225 is problematical (for example in shared libraries) but exporting
4226 functions returning pointers to structures is not.
4229 *) Add support for overriding the generation of SSL/TLS session IDs.
4230 These callbacks can be registered either in an SSL_CTX or per SSL.
4231 The purpose of this is to allow applications to control, if they wish,
4232 the arbitrary values chosen for use as session IDs, particularly as it
4233 can be useful for session caching in multiple-server environments. A
4234 command-line switch for testing this (and any client code that wishes
4235 to use such a feature) has been added to "s_server".
4236 [Geoff Thorpe, Lutz Jaenicke]
4238 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4239 of the form '#if defined(...) || defined(...) || ...' and
4240 '#if !defined(...) && !defined(...) && ...'. This also avoids
4241 the growing number of special cases it was previously handling.
4244 *) Make all configuration macros available for application by making
4245 sure they are available in opensslconf.h, by giving them names starting
4246 with "OPENSSL_" to avoid conflicts with other packages and by making
4247 sure e_os2.h will cover all platform-specific cases together with
4249 Additionally, it is now possible to define configuration/platform-
4250 specific names (called "system identities"). In the C code, these
4251 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4252 macro with the name beginning with "OPENSSL_SYS_", which is determined
4253 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4257 *) New option -set_serial to 'req' and 'x509' this allows the serial
4258 number to use to be specified on the command line. Previously self
4259 signed certificates were hard coded with serial number 0 and the
4260 CA options of 'x509' had to use a serial number in a file which was
4264 *) New options to 'ca' utility to support V2 CRL entry extensions.
4265 Currently CRL reason, invalidity date and hold instruction are
4266 supported. Add new CRL extensions to V3 code and some new objects.
4269 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4270 disable standard block padding (aka PKCS#5 padding) in the EVP
4271 API, which was previously mandatory. This means that the data is
4272 not padded in any way and so the total length much be a multiple
4273 of the block size, otherwise an error occurs.
4276 *) Initial (incomplete) OCSP SSL support.
4279 *) New function OCSP_parse_url(). This splits up a URL into its host,
4280 port and path components: primarily to parse OCSP URLs. New -url
4281 option to ocsp utility.
4284 *) New nonce behavior. The return value of OCSP_check_nonce() now
4285 reflects the various checks performed. Applications can decide
4286 whether to tolerate certain situations such as an absent nonce
4287 in a response when one was present in a request: the ocsp application
4288 just prints out a warning. New function OCSP_add1_basic_nonce()
4289 this is to allow responders to include a nonce in a response even if
4290 the request is nonce-less.
4293 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4294 skipped when using openssl x509 multiple times on a single input file,
4295 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4298 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4299 set string type: to handle setting ASN1_TIME structures. Fix ca
4300 utility to correctly initialize revocation date of CRLs.
4303 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4304 the clients preferred ciphersuites and rather use its own preferences.
4305 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4306 Internet Explorer by ensuring unchanged hash method during stepup.
4307 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4310 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4311 to aes and add a new 'exist' option to print out symbols that don't
4315 *) Additional options to ocsp utility to allow flags to be set and
4316 additional certificates supplied.
4319 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4320 OCSP client a number of certificate to only verify the response
4324 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4325 handle the new API. Currently only ECB, CBC modes supported. Add new
4328 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4329 Encryption Standard (AES) Ciphersuites for Transport Layer
4330 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4331 not enabled by default and were not part of the "ALL" ciphersuite
4332 alias because they were not yet official; they could be
4333 explicitly requested by specifying the "AESdraft" ciphersuite
4334 group alias. In the final release of OpenSSL 0.9.7, the group
4335 alias is called "AES" and is part of "ALL".)
4336 [Ben Laurie, Steve Henson, Bodo Moeller]
4338 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4339 request to response.
4342 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4343 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4344 extract information from a certificate request. OCSP_response_create()
4345 creates a response and optionally adds a basic response structure.
4346 OCSP_basic_add1_status() adds a complete single response to a basic
4347 response and returns the OCSP_SINGLERESP structure just added (to allow
4348 extensions to be included for example). OCSP_basic_add1_cert() adds a
4349 certificate to a basic response and OCSP_basic_sign() signs a basic
4350 response with various flags. New helper functions ASN1_TIME_check()
4351 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4352 (converts ASN1_TIME to GeneralizedTime).
4355 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4356 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4357 structure from a certificate. X509_pubkey_digest() digests the public_key
4358 contents: this is used in various key identifiers.
4361 *) Make sk_sort() tolerate a NULL argument.
4362 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4364 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4365 passed by the function are trusted implicitly. If any of them signed the
4366 response then it is assumed to be valid and is not verified.
4369 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4370 to data. This was previously part of the PKCS7 ASN1 code. This
4371 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4372 [Steve Henson, reported by Kenneth R. Robinette
4373 <support@securenetterm.com>]
4375 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4376 routines: without these tracing memory leaks is very painful.
4377 Fix leaks in PKCS12 and PKCS7 routines.
4380 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4381 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4382 effectively meant GeneralizedTime would never be used. Now it
4383 is initialised to -1 but X509_time_adj() now has to check the value
4384 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4385 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4386 [Steve Henson, reported by Kenneth R. Robinette
4387 <support@securenetterm.com>]
4389 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4390 result in a zero length in the ASN1_INTEGER structure which was
4391 not consistent with the structure when d2i_ASN1_INTEGER() was used
4392 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4393 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4394 where it did not print out a minus for negative ASN1_INTEGER.
4397 *) Add summary printout to ocsp utility. The various functions which
4398 convert status values to strings have been renamed to:
4399 OCSP_response_status_str(), OCSP_cert_status_str() and
4400 OCSP_crl_reason_str() and are no longer static. New options
4401 to verify nonce values and to disable verification. OCSP response
4402 printout format cleaned up.
4405 *) Add additional OCSP certificate checks. These are those specified
4406 in RFC2560. This consists of two separate checks: the CA of the
4407 certificate being checked must either be the OCSP signer certificate
4408 or the issuer of the OCSP signer certificate. In the latter case the
4409 OCSP signer certificate must contain the OCSP signing extended key
4410 usage. This check is performed by attempting to match the OCSP
4411 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4412 in the OCSP_CERTID structures of the response.
4415 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4416 and related routines. This uses the standard OpenSSL certificate
4417 verify routines to perform initial checks (just CA validity) and
4418 to obtain the certificate chain. Then additional checks will be
4419 performed on the chain. Currently the root CA is checked to see
4420 if it is explicitly trusted for OCSP signing. This is used to set
4421 a root CA as a global signing root: that is any certificate that
4422 chains to that CA is an acceptable OCSP signing certificate.
4425 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4426 extensions from a separate configuration file.
4427 As when reading extensions from the main configuration file,
4428 the '-extensions ...' option may be used for specifying the
4430 [Massimiliano Pala <madwolf@comune.modena.it>]
4432 *) New OCSP utility. Allows OCSP requests to be generated or
4433 read. The request can be sent to a responder and the output
4434 parsed, outputed or printed in text form. Not complete yet:
4435 still needs to check the OCSP response validity.
4438 *) New subcommands for 'openssl ca':
4439 'openssl ca -status <serial>' prints the status of the cert with
4440 the given serial number (according to the index file).
4441 'openssl ca -updatedb' updates the expiry status of certificates
4443 [Massimiliano Pala <madwolf@comune.modena.it>]
4445 *) New '-newreq-nodes' command option to CA.pl. This is like
4446 '-newreq', but calls 'openssl req' with the '-nodes' option
4447 so that the resulting key is not encrypted.
4448 [Damien Miller <djm@mindrot.org>]
4450 *) New configuration for the GNU Hurd.
4451 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4453 *) Initial code to implement OCSP basic response verify. This
4454 is currently incomplete. Currently just finds the signer's
4455 certificate and verifies the signature on the response.
4458 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4459 value of OPENSSLDIR. This is available via the new '-d' option
4460 to 'openssl version', and is also included in 'openssl version -a'.
4463 *) Allowing defining memory allocation callbacks that will be given
4464 file name and line number information in additional arguments
4465 (a const char* and an int). The basic functionality remains, as
4466 well as the original possibility to just replace malloc(),
4467 realloc() and free() by functions that do not know about these
4468 additional arguments. To register and find out the current
4469 settings for extended allocation functions, the following
4470 functions are provided:
4472 CRYPTO_set_mem_ex_functions
4473 CRYPTO_set_locked_mem_ex_functions
4474 CRYPTO_get_mem_ex_functions
4475 CRYPTO_get_locked_mem_ex_functions
4477 These work the same way as CRYPTO_set_mem_functions and friends.
4478 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4479 extended allocation function is enabled.
4480 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4481 a conventional allocation function is enabled.
4482 [Richard Levitte, Bodo Moeller]
4484 *) Finish off removing the remaining LHASH function pointer casts.
4485 There should no longer be any prototype-casting required when using
4486 the LHASH abstraction, and any casts that remain are "bugs". See
4487 the callback types and macros at the head of lhash.h for details
4488 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4491 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4492 If /dev/[u]random devices are not available or do not return enough
4493 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4495 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4496 /etc/entropy will be queried once each in this sequence, quering stops
4497 when enough entropy was collected without querying more sockets.
4500 *) Change the Unix RAND_poll() variant to be able to poll several
4501 random devices, as specified by DEVRANDOM, until a sufficient amount
4502 of data has been collected. We spend at most 10 ms on each file
4503 (select timeout) and read in non-blocking mode. DEVRANDOM now
4504 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4505 (previously it was just the string "/dev/urandom"), so on typical
4506 platforms the 10 ms delay will never occur.
4507 Also separate out the Unix variant to its own file, rand_unix.c.
4508 For VMS, there's a currently-empty rand_vms.c.
4511 *) Move OCSP client related routines to ocsp_cl.c. These
4512 provide utility functions which an application needing
4513 to issue a request to an OCSP responder and analyse the
4514 response will typically need: as opposed to those which an
4515 OCSP responder itself would need which will be added later.
4517 OCSP_request_sign() signs an OCSP request with an API similar
4518 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4519 response. OCSP_response_get1_basic() extracts basic response
4520 from response. OCSP_resp_find_status(): finds and extracts status
4521 information from an OCSP_CERTID structure (which will be created
4522 when the request structure is built). These are built from lower
4523 level functions which work on OCSP_SINGLERESP structures but
4524 wont normally be used unless the application wishes to examine
4525 extensions in the OCSP response for example.
4527 Replace nonce routines with a pair of functions.
4528 OCSP_request_add1_nonce() adds a nonce value and optionally
4529 generates a random value. OCSP_check_nonce() checks the
4530 validity of the nonce in an OCSP response.
4533 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4534 This doesn't copy the supplied OCSP_CERTID and avoids the
4535 need to free up the newly created id. Change return type
4536 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4537 This can then be used to add extensions to the request.
4538 Deleted OCSP_request_new(), since most of its functionality
4539 is now in OCSP_REQUEST_new() (and the case insensitive name
4540 clash) apart from the ability to set the request name which
4541 will be added elsewhere.
4544 *) Update OCSP API. Remove obsolete extensions argument from
4545 various functions. Extensions are now handled using the new
4546 OCSP extension code. New simple OCSP HTTP function which
4547 can be used to send requests and parse the response.
4550 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4551 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4552 uses the special reorder version of SET OF to sort the attributes
4553 and reorder them to match the encoded order. This resolves a long
4554 standing problem: a verify on a PKCS7 structure just after signing
4555 it used to fail because the attribute order did not match the
4556 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4557 it uses the received order. This is necessary to tolerate some broken
4558 software that does not order SET OF. This is handled by encoding
4559 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4560 to produce the required SET OF.
4563 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4564 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4565 files to get correct declarations of the ASN.1 item variables.
4568 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4569 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4570 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4571 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4572 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4573 ASN1_ITEM and no wrapper functions.
4576 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4577 replace the old function pointer based I/O routines. Change most of
4578 the *_d2i_bio() and *_d2i_fp() functions to use these.
4581 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4582 lines, recognice more "algorithms" that can be deselected, and make
4583 it complain about algorithm deselection that isn't recognised.
4586 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4587 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4588 to use new functions. Add NO_ASN1_OLD which can be set to remove
4589 some old style ASN1 functions: this can be used to determine if old
4590 code will still work when these eventually go away.
4593 *) New extension functions for OCSP structures, these follow the
4594 same conventions as certificates and CRLs.
4597 *) New function X509V3_add1_i2d(). This automatically encodes and
4598 adds an extension. Its behaviour can be customised with various
4599 flags to append, replace or delete. Various wrappers added for
4600 certifcates and CRLs.
4603 *) Fix to avoid calling the underlying ASN1 print routine when
4604 an extension cannot be parsed. Correct a typo in the
4605 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4608 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4609 entries for variables.
4612 *) Add functionality to apps/openssl.c for detecting locking
4613 problems: As the program is single-threaded, all we have
4614 to do is register a locking callback using an array for
4615 storing which locks are currently held by the program.
4618 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4619 SSL_get_ex_data_X509_STORE_idx(), which is used in
4620 ssl_verify_cert_chain() and thus can be called at any time
4621 during TLS/SSL handshakes so that thread-safety is essential.
4622 Unfortunately, the ex_data design is not at all suited
4623 for multi-threaded use, so it probably should be abolished.
4626 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4627 [Broadcom, tweaked and integrated by Geoff Thorpe]
4629 *) Move common extension printing code to new function
4630 X509V3_print_extensions(). Reorganise OCSP print routines and
4631 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4634 *) New function X509_signature_print() to remove duplication in some
4638 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4639 set (this was treated exactly the same as SET OF previously). This
4640 is used to reorder the STACK representing the structure to match the
4641 encoding. This will be used to get round a problem where a PKCS7
4642 structure which was signed could not be verified because the STACK
4643 order did not reflect the encoded order.
4646 *) Reimplement the OCSP ASN1 module using the new code.
4649 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4650 for its ASN1 operations. The old style function pointers still exist
4651 for now but they will eventually go away.
4654 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4655 completely replaces the old ASN1 functionality with a table driven
4656 encoder and decoder which interprets an ASN1_ITEM structure describing
4657 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4658 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4659 has also been converted to the new form.
4662 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4663 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4664 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4665 for negative moduli.
4668 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4669 of not touching the result's sign bit.
4672 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4676 *) Changed the LHASH code to use prototypes for callbacks, and created
4677 macros to declare and implement thin (optionally static) functions
4678 that provide type-safety and avoid function pointer casting for the
4679 type-specific callbacks.
4682 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4684 [Veers Staats <staatsvr@asc.hpc.mil>,
4685 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4687 *) Reformat the FAQ so the different questions and answers can be divided
4688 in sections depending on the subject.
4691 *) Have the zlib compression code load ZLIB.DLL dynamically under
4695 *) New function BN_mod_sqrt for computing square roots modulo a prime
4696 (using the probabilistic Tonelli-Shanks algorithm unless
4697 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4698 be handled deterministically).
4699 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4701 *) Make BN_mod_inverse faster by explicitly handling small quotients
4702 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4703 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4706 *) New function BN_kronecker.
4709 *) Fix BN_gcd so that it works on negative inputs; the result is
4710 positive unless both parameters are zero.
4711 Previously something reasonably close to an infinite loop was
4712 possible because numbers could be growing instead of shrinking
4713 in the implementation of Euclid's algorithm.
4716 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4717 sign of the number in question.
4719 Fix BN_is_word(a,w) to work correctly for w == 0.
4721 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4722 because its test if the absolute value of 'a' equals 'w'.
4723 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4724 it exists mostly for use in the implementations of BN_is_zero(),
4725 BN_is_one(), and BN_is_word().
4728 *) New function BN_swap.
4731 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4732 the exponentiation functions are more likely to produce reasonable
4733 results on negative inputs.
4736 *) Change BN_mod_mul so that the result is always non-negative.
4737 Previously, it could be negative if one of the factors was negative;
4738 I don't think anyone really wanted that behaviour.
4741 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4742 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4743 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4744 and add new functions:
4753 BN_mod_lshift1_quick
4757 These functions always generate non-negative results.
4759 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4760 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4762 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4763 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4764 be reduced modulo m.
4765 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4768 The following entry accidentily appeared in the CHANGES file
4769 distributed with OpenSSL 0.9.7. The modifications described in
4770 it do *not* apply to OpenSSL 0.9.7.
4772 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4773 was actually never needed) and in BN_mul(). The removal in BN_mul()
4774 required a small change in bn_mul_part_recursive() and the addition
4775 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4776 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4777 bn_sub_words() and bn_add_words() except they take arrays with
4782 *) In 'openssl passwd', verify passwords read from the terminal
4783 unless the '-salt' option is used (which usually means that
4784 verification would just waste user's time since the resulting
4785 hash is going to be compared with some given password hash)
4786 or the new '-noverify' option is used.
4788 This is an incompatible change, but it does not affect
4789 non-interactive use of 'openssl passwd' (passwords on the command
4790 line, '-stdin' option, '-in ...' option) and thus should not
4794 *) Remove all references to RSAref, since there's no more need for it.
4797 *) Make DSO load along a path given through an environment variable
4798 (SHLIB_PATH) with shl_load().
4801 *) Constify the ENGINE code as a result of BIGNUM constification.
4802 Also constify the RSA code and most things related to it. In a
4803 few places, most notable in the depth of the ASN.1 code, ugly
4804 casts back to non-const were required (to be solved at a later
4808 *) Make it so the openssl application has all engines loaded by default.
4811 *) Constify the BIGNUM routines a little more.
4814 *) Add the following functions:
4816 ENGINE_load_cswift()
4818 ENGINE_load_atalla()
4820 ENGINE_load_builtin_engines()
4822 That way, an application can itself choose if external engines that
4823 are built-in in OpenSSL shall ever be used or not. The benefit is
4824 that applications won't have to be linked with libdl or other dso
4825 libraries unless it's really needed.
4827 Changed 'openssl engine' to load all engines on demand.
4828 Changed the engine header files to avoid the duplication of some
4829 declarations (they differed!).
4832 *) 'openssl engine' can now list capabilities.
4835 *) Better error reporting in 'openssl engine'.
4838 *) Never call load_dh_param(NULL) in s_server.
4841 *) Add engine application. It can currently list engines by name and
4842 identity, and test if they are actually available.
4845 *) Improve RPM specification file by forcing symbolic linking and making
4846 sure the installed documentation is also owned by root.root.
4847 [Damien Miller <djm@mindrot.org>]
4849 *) Give the OpenSSL applications more possibilities to make use of
4850 keys (public as well as private) handled by engines.
4853 *) Add OCSP code that comes from CertCo.
4856 *) Add VMS support for the Rijndael code.
4859 *) Added untested support for Nuron crypto accelerator.
4862 *) Add support for external cryptographic devices. This code was
4863 previously distributed separately as the "engine" branch.
4864 [Geoff Thorpe, Richard Levitte]
4866 *) Rework the filename-translation in the DSO code. It is now possible to
4867 have far greater control over how a "name" is turned into a filename
4868 depending on the operating environment and any oddities about the
4869 different shared library filenames on each system.
4872 *) Support threads on FreeBSD-elf in Configure.
4875 *) Fix for SHA1 assembly problem with MASM: it produces
4876 warnings about corrupt line number information when assembling
4877 with debugging information. This is caused by the overlapping
4879 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4882 NCONF_get_number() has no error checking at all. As a replacement,
4883 NCONF_get_number_e() is defined (_e for "error checking") and is
4884 promoted strongly. The old NCONF_get_number is kept around for
4885 binary backward compatibility.
4886 Make it possible for methods to load from something other than a BIO,
4887 by providing a function pointer that is given a name instead of a BIO.
4888 For example, this could be used to load configuration data from an
4892 *) Fix for non blocking accept BIOs. Added new I/O special reason
4893 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4894 with non blocking I/O was not possible because no retry code was
4895 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4899 *) Added the beginnings of Rijndael support.
4902 *) Fix for bug in DirectoryString mask setting. Add support for
4903 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4904 to allow certificate printing to more controllable, additional
4905 'certopt' option to 'x509' to allow new printing options to be
4909 *) Clean old EAY MD5 hack from e_os.h.
4912 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4914 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4915 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4916 [Joe Orton, Steve Henson]
4918 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4920 *) Fix additional bug revealed by the NISCC test suite:
4922 Stop bug triggering large recursion when presented with
4923 certain ASN.1 tags (CVE-2003-0851)
4926 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4928 *) Fix various bugs revealed by running the NISCC test suite:
4930 Stop out of bounds reads in the ASN1 code when presented with
4931 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4933 If verify callback ignores invalid public key errors don't try to check
4934 certificate signature with the NULL public key.
4938 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4939 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4943 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4944 extra data after the compression methods not only for TLS 1.0
4945 but also for SSL 3.0 (as required by the specification).
4946 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4948 *) Change X509_certificate_type() to mark the key as exported/exportable
4949 when it's 512 *bits* long, not 512 bytes.
4952 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4954 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4955 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4956 a protocol version number mismatch like a decryption error
4957 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4960 *) Turn on RSA blinding by default in the default implementation
4961 to avoid a timing attack. Applications that don't want it can call
4962 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4963 They would be ill-advised to do so in most cases.
4964 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4966 *) Change RSA blinding code so that it works when the PRNG is not
4967 seeded (in this case, the secret RSA exponent is abused as
4968 an unpredictable seed -- if it is not unpredictable, there
4969 is no point in blinding anyway). Make RSA blinding thread-safe
4970 by remembering the creator's thread ID in rsa->blinding and
4971 having all other threads use local one-time blinding factors
4972 (this requires more computation than sharing rsa->blinding, but
4973 avoids excessive locking; and if an RSA object is not shared
4974 between threads, blinding will still be very fast).
4977 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4979 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4980 via timing by performing a MAC computation even if incorrrect
4981 block cipher padding has been found. This is a countermeasure
4982 against active attacks where the attacker has to distinguish
4983 between bad padding and a MAC verification error. (CVE-2003-0078)
4985 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4986 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4987 Martin Vuagnoux (EPFL, Ilion)]
4989 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4991 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4992 memory from it's contents. This is done with a counter that will
4993 place alternating values in each byte. This can be used to solve
4994 two issues: 1) the removal of calls to memset() by highly optimizing
4995 compilers, and 2) cleansing with other values than 0, since those can
4996 be read through on certain media, for example a swap space on disk.
4999 *) Bugfix: client side session caching did not work with external caching,
5000 because the session->cipher setting was not restored when reloading
5001 from the external cache. This problem was masked, when
5002 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5003 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5006 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5007 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5008 [Zeev Lieber <zeev-l@yahoo.com>]
5010 *) Undo an undocumented change introduced in 0.9.6e which caused
5011 repeated calls to OpenSSL_add_all_ciphers() and
5012 OpenSSL_add_all_digests() to be ignored, even after calling
5016 *) Change the default configuration reader to deal with last line not
5017 being properly terminated.
5020 *) Change X509_NAME_cmp() so it applies the special rules on handling
5021 DN values that are of type PrintableString, as well as RDNs of type
5022 emailAddress where the value has the type ia5String.
5023 [stefank@valicert.com via Richard Levitte]
5025 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5026 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5027 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5028 the bitwise-OR of the two for use by the majority of applications
5029 wanting this behaviour, and update the docs. The documented
5030 behaviour and actual behaviour were inconsistent and had been
5031 changing anyway, so this is more a bug-fix than a behavioural
5033 [Geoff Thorpe, diagnosed by Nadav Har'El]
5035 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5036 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5039 *) Fix initialization code race conditions in
5040 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5041 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5042 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5043 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5044 ssl2_get_cipher_by_char(),
5045 ssl3_get_cipher_by_char().
5046 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5048 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5049 the cached sessions are flushed, as the remove_cb() might use ex_data
5050 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5051 (see [openssl.org #212]).
5052 [Geoff Thorpe, Lutz Jaenicke]
5054 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5055 length, instead of the encoding length to d2i_ASN1_OBJECT.
5058 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5060 *) [In 0.9.6g-engine release:]
5061 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5062 [Lynn Gazis <lgazis@rainbow.com>]
5064 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5066 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5067 and get fix the header length calculation.
5068 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5069 Alon Kantor <alonk@checkpoint.com> (and others),
5072 *) Use proper error handling instead of 'assertions' in buffer
5073 overflow checks added in 0.9.6e. This prevents DoS (the
5074 assertions could call abort()).
5075 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5077 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5079 *) Add various sanity checks to asn1_get_length() to reject
5080 the ASN1 length bytes if they exceed sizeof(long), will appear
5081 negative or the content length exceeds the length of the
5083 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5085 *) Fix cipher selection routines: ciphers without encryption had no flags
5086 for the cipher strength set and where therefore not handled correctly
5087 by the selection routines (PR #130).
5090 *) Fix EVP_dsa_sha macro.
5094 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5095 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5096 that was added in OpenSSL 0.9.6d.
5098 As the countermeasure turned out to be incompatible with some
5099 broken SSL implementations, the new option is part of SSL_OP_ALL.
5100 SSL_OP_ALL is usually employed when compatibility with weird SSL
5101 implementations is desired (e.g. '-bugs' option to 's_client' and
5102 's_server'), so the new option is automatically set in many
5106 *) Changes in security patch:
5108 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5109 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5110 Air Force Materiel Command, USAF, under agreement number
5113 *) Add various sanity checks to asn1_get_length() to reject
5114 the ASN1 length bytes if they exceed sizeof(long), will appear
5115 negative or the content length exceeds the length of the
5116 supplied buffer. (CVE-2002-0659)
5117 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5119 *) Assertions for various potential buffer overflows, not known to
5121 [Ben Laurie (CHATS)]
5123 *) Various temporary buffers to hold ASCII versions of integers were
5124 too small for 64 bit platforms. (CVE-2002-0655)
5125 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5127 *) Remote buffer overflow in SSL3 protocol - an attacker could
5128 supply an oversized session ID to a client. (CVE-2002-0656)
5129 [Ben Laurie (CHATS)]
5131 *) Remote buffer overflow in SSL2 protocol - an attacker could
5132 supply an oversized client master key. (CVE-2002-0656)
5133 [Ben Laurie (CHATS)]
5135 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5137 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5138 encoded as NULL) with id-dsa-with-sha1.
5139 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5141 *) Check various X509_...() return values in apps/req.c.
5142 [Nils Larsch <nla@trustcenter.de>]
5144 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5145 an end-of-file condition would erronously be flagged, when the CRLF
5146 was just at the end of a processed block. The bug was discovered when
5147 processing data through a buffering memory BIO handing the data to a
5148 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5149 <ptsekov@syntrex.com> and Nedelcho Stanev.
5152 *) Implement a countermeasure against a vulnerability recently found
5153 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5154 before application data chunks to avoid the use of known IVs
5155 with data potentially chosen by the attacker.
5158 *) Fix length checks in ssl3_get_client_hello().
5161 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5162 to prevent ssl3_read_internal() from incorrectly assuming that
5163 ssl3_read_bytes() found application data while handshake
5164 processing was enabled when in fact s->s3->in_read_app_data was
5165 merely automatically cleared during the initial handshake.
5166 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5168 *) Fix object definitions for Private and Enterprise: they were not
5169 recognized in their shortname (=lowercase) representation. Extend
5170 obj_dat.pl to issue an error when using undefined keywords instead
5171 of silently ignoring the problem (Svenning Sorensen
5172 <sss@sss.dnsalias.net>).
5175 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5176 generators, i.e. generators other than 2 and 5. (Previously, the
5177 code did not properly initialise the 'add' and 'rem' values to
5178 BN_generate_prime().)
5180 In the new general case, we do not insist that 'generator' is
5181 actually a primitive root: This requirement is rather pointless;
5182 a generator of the order-q subgroup is just as good, if not
5186 *) Map new X509 verification errors to alerts. Discovered and submitted by
5187 Tom Wu <tom@arcot.com>.
5190 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5191 returning non-zero before the data has been completely received
5192 when using non-blocking I/O.
5193 [Bodo Moeller; problem pointed out by John Hughes]
5195 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5196 [Ben Laurie, Lutz Jaenicke]
5198 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5199 Yoram Zahavi <YoramZ@gilian.com>).
5202 *) Add information about CygWin 1.3 and on, and preserve proper
5203 configuration for the versions before that.
5204 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5206 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5207 check whether we deal with a copy of a session and do not delete from
5208 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5209 <izhar@checkpoint.com>.
5212 *) Do not store session data into the internal session cache, if it
5213 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5214 flag is set). Proposed by Aslam <aslam@funk.com>.
5217 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5221 *) [In 0.9.6d-engine release:]
5222 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5223 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5225 *) Add the configuration target linux-s390x.
5226 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5228 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5229 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5230 variable as an indication that a ClientHello message has been
5231 received. As the flag value will be lost between multiple
5232 invocations of ssl3_accept when using non-blocking I/O, the
5233 function may not be aware that a handshake has actually taken
5234 place, thus preventing a new session from being added to the
5237 To avoid this problem, we now set s->new_session to 2 instead of
5238 using a local variable.
5239 [Lutz Jaenicke, Bodo Moeller]
5241 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5242 if the SSL_R_LENGTH_MISMATCH error is detected.
5243 [Geoff Thorpe, Bodo Moeller]
5245 *) New 'shared_ldflag' column in Configure platform table.
5248 *) Fix EVP_CIPHER_mode macro.
5249 ["Dan S. Camper" <dan@bti.net>]
5251 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5252 type, we must throw them away by setting rr->length to 0.
5253 [D P Chang <dpc@qualys.com>]
5255 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5257 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5258 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5259 worked incorrectly for those cases where range = 10..._2 and
5260 3*range is two bits longer than range.)
5263 *) Only add signing time to PKCS7 structures if it is not already
5267 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5268 OBJ_ld_ce should be OBJ_id_ce.
5269 Also some ip-pda OIDs in crypto/objects/objects.txt were
5270 incorrect (cf. RFC 3039).
5271 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5273 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5274 returns early because it has nothing to do.
5275 [Andy Schneider <andy.schneider@bjss.co.uk>]
5277 *) [In 0.9.6c-engine release:]
5278 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5279 [Andy Schneider <andy.schneider@bjss.co.uk>]
5281 *) [In 0.9.6c-engine release:]
5282 Add support for Cryptographic Appliance's keyserver technology.
5283 (Use engine 'keyclient')
5284 [Cryptographic Appliances and Geoff Thorpe]
5286 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5287 is called via tools/c89.sh because arguments have to be
5288 rearranged (all '-L' options must appear before the first object
5290 [Richard Shapiro <rshapiro@abinitio.com>]
5292 *) [In 0.9.6c-engine release:]
5293 Add support for Broadcom crypto accelerator cards, backported
5295 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5297 *) [In 0.9.6c-engine release:]
5298 Add support for SureWare crypto accelerator cards from
5299 Baltimore Technologies. (Use engine 'sureware')
5300 [Baltimore Technologies and Mark Cox]
5302 *) [In 0.9.6c-engine release:]
5303 Add support for crypto accelerator cards from Accelerated
5304 Encryption Processing, www.aep.ie. (Use engine 'aep')
5305 [AEP Inc. and Mark Cox]
5307 *) Add a configuration entry for gcc on UnixWare.
5308 [Gary Benson <gbenson@redhat.com>]
5310 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5311 messages are stored in a single piece (fixed-length part and
5312 variable-length part combined) and fix various bugs found on the way.
5315 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5316 instead. BIO_gethostbyname() does not know what timeouts are
5317 appropriate, so entries would stay in cache even when they have
5319 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5321 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5322 faced with a pathologically small ClientHello fragment that does
5323 not contain client_version: Instead of aborting with an error,
5324 simply choose the highest available protocol version (i.e.,
5325 TLS 1.0 unless it is disabled). In practice, ClientHello
5326 messages are never sent like this, but this change gives us
5327 strictly correct behaviour at least for TLS.
5330 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5331 never resets s->method to s->ctx->method when called from within
5332 one of the SSL handshake functions.
5333 [Bodo Moeller; problem pointed out by Niko Baric]
5335 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5336 (sent using the client's version number) if client_version is
5337 smaller than the protocol version in use. Also change
5338 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5339 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5340 the client will at least see that alert.
5343 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5347 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5348 client receives HelloRequest while in a handshake.
5349 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5351 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5352 should end in 'break', not 'goto end' which circuments various
5353 cleanups done in state SSL_ST_OK. But session related stuff
5354 must be disabled for SSL_ST_OK in the case that we just sent a
5357 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5358 before just sending a HelloRequest.
5359 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5361 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5362 reveal whether illegal block cipher padding was found or a MAC
5363 verification error occured. (Neither SSLerr() codes nor alerts
5364 are directly visible to potential attackers, but the information
5365 may leak via logfiles.)
5367 Similar changes are not required for the SSL 2.0 implementation
5368 because the number of padding bytes is sent in clear for SSL 2.0,
5369 and the extra bytes are just ignored. However ssl/s2_pkt.c
5370 failed to verify that the purported number of padding bytes is in
5374 *) Add OpenUNIX-8 support including shared libraries
5375 (Boyd Lynn Gerber <gerberb@zenez.com>).
5378 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5379 'wristwatch attack' using huge encoding parameters (cf.
5380 James H. Manger's CRYPTO 2001 paper). Note that the
5381 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5382 encoding parameters and hence was not vulnerable.
5385 *) BN_sqr() bug fix.
5386 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5388 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5389 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5390 followed by modular reduction.
5391 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5393 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5394 equivalent based on BN_pseudo_rand() instead of BN_rand().
5397 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5398 This function was broken, as the check for a new client hello message
5399 to handle SGC did not allow these large messages.
5400 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5403 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5406 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5407 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5410 *) Rework the configuration and shared library support for Tru64 Unix.
5411 The configuration part makes use of modern compiler features and
5412 still retains old compiler behavior for those that run older versions
5413 of the OS. The shared library support part includes a variant that
5414 uses the RPATH feature, and is available through the special
5415 configuration target "alpha-cc-rpath", which will never be selected
5417 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5419 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5420 with the same message size as in ssl3_get_certificate_request().
5421 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5422 messages might inadvertently be reject as too long.
5423 [Petr Lampa <lampa@fee.vutbr.cz>]
5425 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5428 *) Modified SSL library such that the verify_callback that has been set
5429 specificly for an SSL object with SSL_set_verify() is actually being
5430 used. Before the change, a verify_callback set with this function was
5431 ignored and the verify_callback() set in the SSL_CTX at the time of
5432 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5433 to allow the necessary settings.
5436 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5437 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5438 done automatically (in contradiction to the requirements of the C
5439 standard). This made problems when used from OpenSSH.
5442 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5443 dh->length and always used
5445 BN_rand_range(priv_key, dh->p).
5447 BN_rand_range() is not necessary for Diffie-Hellman, and this
5448 specific range makes Diffie-Hellman unnecessarily inefficient if
5449 dh->length (recommended exponent length) is much smaller than the
5450 length of dh->p. We could use BN_rand_range() if the order of
5451 the subgroup was stored in the DH structure, but we only have
5456 BN_rand(priv_key, l, ...)
5458 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5464 RSA_eay_public_encrypt
5465 RSA_eay_private_decrypt
5466 RSA_eay_private_encrypt (signing)
5467 RSA_eay_public_decrypt (signature verification)
5469 (default implementations for RSA_public_encrypt,
5470 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5471 always reject numbers >= n.
5474 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5475 to synchronize access to 'locking_thread'. This is necessary on
5476 systems where access to 'locking_thread' (an 'unsigned long'
5477 variable) is not atomic.
5480 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5481 *before* setting the 'crypto_lock_rand' flag. The previous code had
5482 a race condition if 0 is a valid thread ID.
5483 [Travis Vitek <vitek@roguewave.com>]
5485 *) Add support for shared libraries under Irix.
5486 [Albert Chin-A-Young <china@thewrittenword.com>]
5488 *) Add configuration option to build on Linux on both big-endian and
5490 [Ralf Baechle <ralf@uni-koblenz.de>]
5492 *) Add the possibility to create shared libraries on HP-UX.
5495 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5497 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5498 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5499 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5500 PRNG state recovery was possible based on the output of
5501 one PRNG request appropriately sized to gain knowledge on
5502 'md' followed by enough consecutive 1-byte PRNG requests
5503 to traverse all of 'state'.
5505 1. When updating 'md_local' (the current thread's copy of 'md')
5506 during PRNG output generation, hash all of the previous
5507 'md_local' value, not just the half used for PRNG output.
5509 2. Make the number of bytes from 'state' included into the hash
5510 independent from the number of PRNG bytes requested.
5512 The first measure alone would be sufficient to avoid
5513 Markku-Juhani's attack. (Actually it had never occurred
5514 to me that the half of 'md_local' used for chaining was the
5515 half from which PRNG output bytes were taken -- I had always
5516 assumed that the secret half would be used.) The second
5517 measure makes sure that additional data from 'state' is never
5518 mixed into 'md_local' in small portions; this heuristically
5519 further strengthens the PRNG.
5522 *) Fix crypto/bn/asm/mips3.s.
5525 *) When only the key is given to "enc", the IV is undefined. Print out
5526 an error message in this case.
5529 *) Handle special case when X509_NAME is empty in X509 printing routines.
5532 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5533 positive and less than q.
5536 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5537 used: it isn't thread safe and the add_lock_callback should handle
5539 [Paul Rose <Paul.Rose@bridge.com>]
5541 *) Verify that incoming data obeys the block size in
5542 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5546 [Ulf Möller, Bodo Möller]
5548 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5549 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5550 when fixing the server behaviour for backwards-compatible 'client
5551 hello' messages. (Note that the attack is impractical against
5552 SSL 3.0 and TLS 1.0 anyway because length and version checking
5553 means that the probability of guessing a valid ciphertext is
5554 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5557 Before 0.9.5, the countermeasure (hide the error by generating a
5558 random 'decryption result') did not work properly because
5559 ERR_clear_error() was missing, meaning that SSL_get_error() would
5560 detect the supposedly ignored error.
5562 Both problems are now fixed.
5565 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5566 (previously it was 1024).
5569 *) Fix for compatibility mode trust settings: ignore trust settings
5570 unless some valid trust or reject settings are present.
5573 *) Fix for blowfish EVP: its a variable length cipher.
5576 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5577 parameters in DSA public key structures and return an error in the
5578 DSA routines if parameters are absent.
5581 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5582 in the current directory if neither $RANDFILE nor $HOME was set.
5583 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5584 caused some confusion to Windows users who haven't defined $HOME.
5585 Thus RAND_file_name() is changed again: e_os.h can define a
5586 DEFAULT_HOME, which will be used if $HOME is not set.
5587 For Windows, we use "C:"; on other platforms, we still require
5588 environment variables.
5590 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5591 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5592 having multiple threads call RAND_poll() concurrently.
5595 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5596 combination of a flag and a thread ID variable.
5597 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5598 flag), *other* threads can enter ssleay_add_bytes without obeying
5599 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5600 that they do not hold after the first thread unsets add_do_not_lock).
5603 *) Change bctest again: '-x' expressions are not available in all
5607 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5609 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5610 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5612 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5613 the default extension for executables, if any. Also, make the perl
5614 scripts that use symlink() to test if it really exists and use "cp"
5615 if it doesn't. All this made OpenSSL compilable and installable in
5619 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5620 If SEQUENCE is length is indefinite just set c->slen to the total
5621 amount of data available.
5622 [Steve Henson, reported by shige@FreeBSD.org]
5623 [This change does not apply to 0.9.7.]
5625 *) Change bctest to avoid here-documents inside command substitution
5626 (workaround for FreeBSD /bin/sh bug).
5627 For compatibility with Ultrix, avoid shell functions (introduced
5628 in the bctest version that searches along $PATH).
5631 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5632 with des_encrypt() defined on some operating systems, like Solaris
5636 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5637 On the Importance of Eliminating Errors in Cryptographic
5638 Computations, J. Cryptology 14 (2001) 2, 101-119,
5639 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5642 *) MIPS assembler BIGNUM division bug fix.
5645 *) Disabled incorrect Alpha assembler code.
5648 *) Fix PKCS#7 decode routines so they correctly update the length
5649 after reading an EOC for the EXPLICIT tag.
5651 [This change does not apply to 0.9.7.]
5653 *) Fix bug in PKCS#12 key generation routines. This was triggered
5654 if a 3DES key was generated with a 0 initial byte. Include
5655 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5656 (but broken) behaviour.
5659 *) Enhance bctest to search for a working bc along $PATH and print
5661 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5663 *) Fix memory leaks in err.c: free err_data string if necessary;
5664 don't write to the wrong index in ERR_set_error_data.
5667 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5671 *) Replace rdtsc with _emit statements for VC++ version 5.
5672 [Jeremy Cooper <jeremy@baymoo.org>]
5674 *) Make it possible to reuse SSLv2 sessions.
5677 *) In copy_email() check for >= 0 as a return value for
5678 X509_NAME_get_index_by_NID() since 0 is a valid index.
5679 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5681 *) Avoid coredump with unsupported or invalid public keys by checking if
5682 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5683 PKCS7_verify() fails with non detached data.
5686 *) Don't use getenv in library functions when run as setuid/setgid.
5687 New function OPENSSL_issetugid().
5690 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5691 due to incorrect handling of multi-threading:
5693 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5695 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5697 3. Count how many times MemCheck_off() has been called so that
5698 nested use can be treated correctly. This also avoids
5699 inband-signalling in the previous code (which relied on the
5700 assumption that thread ID 0 is impossible).
5703 *) Add "-rand" option also to s_client and s_server.
5706 *) Fix CPU detection on Irix 6.x.
5707 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5708 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5710 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5713 [This change does not apply to 0.9.7.]
5715 *) Use the cached encoding of an X509_NAME structure rather than
5716 copying it. This is apparently the reason for the libsafe "errors"
5717 but the code is actually correct.
5720 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5721 Bleichenbacher's DSA attack.
5722 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5723 to be set and top=0 forces the highest bit to be set; top=-1 is new
5724 and leaves the highest bit random.
5725 [Ulf Moeller, Bodo Moeller]
5727 *) In the NCONF_...-based implementations for CONF_... queries
5728 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5729 a temporary CONF structure with the data component set to NULL
5730 (which gives segmentation faults in lh_retrieve).
5731 Instead, use NULL for the CONF pointer in CONF_get_string and
5732 CONF_get_number (which may use environment variables) and directly
5733 return NULL from CONF_get_section.
5736 *) Fix potential buffer overrun for EBCDIC.
5739 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5740 keyUsage if basicConstraints absent for a CA.
5743 *) Make SMIME_write_PKCS7() write mail header values with a format that
5744 is more generally accepted (no spaces before the semicolon), since
5745 some programs can't parse those values properly otherwise. Also make
5746 sure BIO's that break lines after each write do not create invalid
5750 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5751 macros previously used would not encode an empty SEQUENCE OF
5752 and break the signature.
5754 [This change does not apply to 0.9.7.]
5756 *) Zero the premaster secret after deriving the master secret in
5760 *) Add some EVP_add_digest_alias registrations (as found in
5761 OpenSSL_add_all_digests()) to SSL_library_init()
5762 aka OpenSSL_add_ssl_algorithms(). This provides improved
5763 compatibility with peers using X.509 certificates
5764 with unconventional AlgorithmIdentifier OIDs.
5767 *) Fix for Irix with NO_ASM.
5768 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5770 *) ./config script fixes.
5771 [Ulf Moeller, Richard Levitte]
5773 *) Fix 'openssl passwd -1'.
5776 *) Change PKCS12_key_gen_asc() so it can cope with non null
5777 terminated strings whose length is passed in the passlen
5778 parameter, for example from PEM callbacks. This was done
5779 by adding an extra length parameter to asc2uni().
5780 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5782 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5783 call failed, free the DSA structure.
5786 *) Fix to uni2asc() to cope with zero length Unicode strings.
5787 These are present in some PKCS#12 files.
5790 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5791 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5792 when writing a 32767 byte record.
5793 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5795 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5796 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5798 (RSA objects have a reference count access to which is protected
5799 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5800 so they are meant to be shared between threads.)
5801 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5802 "Reddie, Steven" <Steven.Reddie@ca.com>]
5804 *) Fix a deadlock in CRYPTO_mem_leaks().
5807 *) Use better test patterns in bntest.
5810 *) rand_win.c fix for Borland C.
5813 *) BN_rshift bugfix for n == 0.
5816 *) Add a 'bctest' script that checks for some known 'bc' bugs
5817 so that 'make test' does not abort just because 'bc' is broken.
5820 *) Store verify_result within SSL_SESSION also for client side to
5821 avoid potential security hole. (Re-used sessions on the client side
5822 always resulted in verify_result==X509_V_OK, not using the original
5823 result of the server certificate verification.)
5826 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5827 SSL3_RT_APPLICATION_DATA, return 0.
5828 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5832 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5833 releases, have been re-implemented by renaming the previous
5834 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5835 and ssl3_read_internal, respectively, and adding 'peek' parameters
5836 to them. The new ssl[23]_{read,peek} functions are calls to
5837 ssl[23]_read_internal with the 'peek' flag set appropriately.
5838 A 'peek' parameter has also been added to ssl3_read_bytes, which
5839 does the actual work for ssl3_read_internal.
5842 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5843 the method-specific "init()" handler. Also clean up ex_data after
5844 calling the method-specific "finish()" handler. Previously, this was
5845 happening the other way round.
5848 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5849 The previous value, 12, was not always sufficient for BN_mod_exp().
5852 *) Make sure that shared libraries get the internal name engine with
5853 the full version number and not just 0. This should mark the
5854 shared libraries as not backward compatible. Of course, this should
5855 be changed again when we can guarantee backward binary compatibility.
5858 *) Fix typo in get_cert_by_subject() in by_dir.c
5859 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5861 *) Rework the system to generate shared libraries:
5863 - Make note of the expected extension for the shared libraries and
5864 if there is a need for symbolic links from for example libcrypto.so.0
5865 to libcrypto.so.0.9.7. There is extended info in Configure for
5868 - Make as few rebuilds of the shared libraries as possible.
5870 - Still avoid linking the OpenSSL programs with the shared libraries.
5872 - When installing, install the shared libraries separately from the
5876 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5878 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5879 and not in SSL_clear because the latter is also used by the
5880 accept/connect functions; previously, the settings made by
5881 SSL_set_read_ahead would be lost during the handshake.
5882 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5884 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5885 Previously, it would create entries for disableed algorithms no
5889 *) Added several new manual pages for SSL_* function.
5892 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5894 *) In ssl23_get_client_hello, generate an error message when faced
5895 with an initial SSL 3.0/TLS record that is too small to contain the
5896 first two bytes of the ClientHello message, i.e. client_version.
5897 (Note that this is a pathologic case that probably has never happened
5898 in real life.) The previous approach was to use the version number
5899 from the record header as a substitute; but our protocol choice
5900 should not depend on that one because it is not authenticated
5901 by the Finished messages.
5904 *) More robust randomness gathering functions for Windows.
5905 [Jeffrey Altman <jaltman@columbia.edu>]
5907 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5908 not set then we don't setup the error code for issuer check errors
5909 to avoid possibly overwriting other errors which the callback does
5910 handle. If an application does set the flag then we assume it knows
5911 what it is doing and can handle the new informational codes
5915 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5916 a general "ANY" type, as such it should be able to decode anything
5917 including tagged types. However it didn't check the class so it would
5918 wrongly interpret tagged types in the same way as their universal
5919 counterpart and unknown types were just rejected. Changed so that the
5920 tagged and unknown types are handled in the same way as a SEQUENCE:
5921 that is the encoding is stored intact. There is also a new type
5922 "V_ASN1_OTHER" which is used when the class is not universal, in this
5923 case we have no idea what the actual type is so we just lump them all
5927 *) On VMS, stdout may very well lead to a file that is written to
5928 in a record-oriented fashion. That means that every write() will
5929 write a separate record, which will be read separately by the
5930 programs trying to read from it. This can be very confusing.
5932 The solution is to put a BIO filter in the way that will buffer
5933 text until a linefeed is reached, and then write everything a
5934 line at a time, so every record written will be an actual line,
5935 not chunks of lines and not (usually doesn't happen, but I've
5936 seen it once) several lines in one record. BIO_f_linebuffer() is
5939 Currently, it's a VMS-only method, because that's where it has
5940 been tested well enough.
5943 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5944 it can return incorrect results.
5945 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5946 but it was in 0.9.6-beta[12].)
5949 *) Disable the check for content being present when verifying detached
5950 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5951 include zero length content when signing messages.
5954 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5955 BIO_ctrl (for BIO pairs).
5958 *) Add DSO method for VMS.
5961 *) Bug fix: Montgomery multiplication could produce results with the
5965 *) Add RPM specification openssl.spec and modify it to build three
5966 packages. The default package contains applications, application
5967 documentation and run-time libraries. The devel package contains
5968 include files, static libraries and function documentation. The
5969 doc package contains the contents of the doc directory. The original
5970 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5973 *) Add a large number of documentation files for many SSL routines.
5974 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5976 *) Add a configuration entry for Sony News 4.
5977 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5979 *) Don't set the two most significant bits to one when generating a
5980 random number < q in the DSA library.
5983 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5984 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5985 the underlying transport is blocking) if a handshake took place.
5986 (The default behaviour is needed by applications such as s_client
5987 and s_server that use select() to determine when to use SSL_read;
5988 but for applications that know in advance when to expect data, it
5989 just makes things more complicated.)
5992 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5996 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5997 work better on such systems.
5998 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6000 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6001 Update PKCS12_parse() so it copies the friendlyName and the
6002 keyid to the certificates aux info.
6005 *) Fix bug in PKCS7_verify() which caused an infinite loop
6006 if there was more than one signature.
6007 [Sven Uszpelkat <su@celocom.de>]
6009 *) Major change in util/mkdef.pl to include extra information
6010 about each symbol, as well as presentig variables as well
6011 as functions. This change means that there's n more need
6012 to rebuild the .num files when some algorithms are excluded.
6015 *) Allow the verify time to be set by an application,
6016 rather than always using the current time.
6019 *) Phase 2 verify code reorganisation. The certificate
6020 verify code now looks up an issuer certificate by a
6021 number of criteria: subject name, authority key id
6022 and key usage. It also verifies self signed certificates
6023 by the same criteria. The main comparison function is
6024 X509_check_issued() which performs these checks.
6026 Lot of changes were necessary in order to support this
6027 without completely rewriting the lookup code.
6029 Authority and subject key identifier are now cached.
6031 The LHASH 'certs' is X509_STORE has now been replaced
6032 by a STACK_OF(X509_OBJECT). This is mainly because an
6033 LHASH can't store or retrieve multiple objects with
6034 the same hash value.
6036 As a result various functions (which were all internal
6037 use only) have changed to handle the new X509_STORE
6038 structure. This will break anything that messed round
6039 with X509_STORE internally.
6041 The functions X509_STORE_add_cert() now checks for an
6042 exact match, rather than just subject name.
6044 The X509_STORE API doesn't directly support the retrieval
6045 of multiple certificates matching a given criteria, however
6046 this can be worked round by performing a lookup first
6047 (which will fill the cache with candidate certificates)
6048 and then examining the cache for matches. This is probably
6049 the best we can do without throwing out X509_LOOKUP
6050 entirely (maybe later...).
6052 The X509_VERIFY_CTX structure has been enhanced considerably.
6054 All certificate lookup operations now go via a get_issuer()
6055 callback. Although this currently uses an X509_STORE it
6056 can be replaced by custom lookups. This is a simple way
6057 to bypass the X509_STORE hackery necessary to make this
6058 work and makes it possible to use more efficient techniques
6059 in future. A very simple version which uses a simple
6060 STACK for its trusted certificate store is also provided
6061 using X509_STORE_CTX_trusted_stack().
6063 The verify_cb() and verify() callbacks now have equivalents
6064 in the X509_STORE_CTX structure.
6066 X509_STORE_CTX also has a 'flags' field which can be used
6067 to customise the verify behaviour.
6070 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6071 excludes S/MIME capabilities.
6074 *) When a certificate request is read in keep a copy of the
6075 original encoding of the signed data and use it when outputing
6076 again. Signatures then use the original encoding rather than
6077 a decoded, encoded version which may cause problems if the
6078 request is improperly encoded.
6081 *) For consistency with other BIO_puts implementations, call
6082 buffer_write(b, ...) directly in buffer_puts instead of calling
6085 In BIO_puts, increment b->num_write as in BIO_write.
6086 [Peter.Sylvester@EdelWeb.fr]
6088 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6089 BN_zero, we may not return a BIGNUM with an array consisting of
6093 *) Avoid calling abort() from within the library when problems are
6094 detected, except if preprocessor symbols have been defined
6095 (such as REF_CHECK, BN_DEBUG etc.).
6098 *) New openssl application 'rsautl'. This utility can be
6099 used for low level RSA operations. DER public key
6100 BIO/fp routines also added.
6103 *) New Configure entry and patches for compiling on QNX 4.
6104 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6106 *) A demo state-machine implementation was sponsored by
6107 Nuron (http://www.nuron.com/) and is now available in
6108 demos/state_machine.
6111 *) New options added to the 'dgst' utility for signature
6112 generation and verification.
6115 *) Unrecognized PKCS#7 content types are now handled via a
6116 catch all ASN1_TYPE structure. This allows unsupported
6117 types to be stored as a "blob" and an application can
6118 encode and decode it manually.
6121 *) Fix various signed/unsigned issues to make a_strex.c
6123 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6125 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6126 length if passed a buffer. ASN1_INTEGER_to_BN failed
6127 if passed a NULL BN and its argument was negative.
6128 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6130 *) Modification to PKCS#7 encoding routines to output definite
6131 length encoding. Since currently the whole structures are in
6132 memory there's not real point in using indefinite length
6133 constructed encoding. However if OpenSSL is compiled with
6134 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6137 *) Added BIO_vprintf() and BIO_vsnprintf().
6140 *) Added more prefixes to parse for in the the strings written
6141 through a logging bio, to cover all the levels that are available
6142 through syslog. The prefixes are now:
6144 PANIC, EMERG, EMR => LOG_EMERG
6145 ALERT, ALR => LOG_ALERT
6146 CRIT, CRI => LOG_CRIT
6147 ERROR, ERR => LOG_ERR
6148 WARNING, WARN, WAR => LOG_WARNING
6149 NOTICE, NOTE, NOT => LOG_NOTICE
6150 INFO, INF => LOG_INFO
6151 DEBUG, DBG => LOG_DEBUG
6153 and as before, if none of those prefixes are present at the
6154 beginning of the string, LOG_ERR is chosen.
6156 On Win32, the LOG_* levels are mapped according to this:
6158 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6159 LOG_WARNING => EVENTLOG_WARNING_TYPE
6160 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6164 *) Made it possible to reconfigure with just the configuration
6165 argument "reconf" or "reconfigure". The command line arguments
6166 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6167 and are retrieved from there when reconfiguring.
6171 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6173 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6176 *) The obj_dat.pl script was messing up the sorting of object
6177 names. The reason was that it compared the quoted version
6178 of strings as a result "OCSP" > "OCSP Signing" because
6179 " > SPACE. Changed script to store unquoted versions of
6180 names and add quotes on output. It was also omitting some
6181 names from the lookup table if they were given a default
6182 value (that is if SN is missing it is given the same
6183 value as LN and vice versa), these are now added on the
6184 grounds that if an object has a name we should be able to
6185 look it up. Finally added warning output when duplicate
6186 short or long names are found.
6189 *) Changes needed for Tandem NSK.
6190 [Scott Uroff <scott@xypro.com>]
6192 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6193 RSA_padding_check_SSLv23(), special padding was never detected
6194 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6195 version rollback attacks was not effective.
6197 In s23_clnt.c, don't use special rollback-attack detection padding
6198 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6199 client; similarly, in s23_srvr.c, don't do the rollback check if
6200 SSL 2.0 is the only protocol enabled in the server.
6203 *) Make it possible to get hexdumps of unprintable data with 'openssl
6204 asn1parse'. By implication, the functions ASN1_parse_dump() and
6205 BIO_dump_indent() are added.
6208 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6209 these print out strings and name structures based on various
6210 flags including RFC2253 support and proper handling of
6211 multibyte characters. Added options to the 'x509' utility
6212 to allow the various flags to be set.
6215 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6216 Also change the functions X509_cmp_current_time() and
6217 X509_gmtime_adj() work with an ASN1_TIME structure,
6218 this will enable certificates using GeneralizedTime in validity
6219 dates to be checked.
6222 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6223 negative public key encodings) on by default,
6224 NO_NEG_PUBKEY_BUG can be set to disable it.
6227 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6228 content octets. An i2c_ASN1_OBJECT is unnecessary because
6229 the encoding can be trivially obtained from the structure.
6232 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6233 not read locks (CRYPTO_r_[un]lock).
6236 *) A first attempt at creating official support for shared
6237 libraries through configuration. I've kept it so the
6238 default is static libraries only, and the OpenSSL programs
6239 are always statically linked for now, but there are
6240 preparations for dynamic linking in place.
6241 This has been tested on Linux and Tru64.
6244 *) Randomness polling function for Win9x, as described in:
6245 Peter Gutmann, Software Generation of Practically Strong
6249 *) Fix so PRNG is seeded in req if using an already existing
6253 *) New options to smime application. -inform and -outform
6254 allow alternative formats for the S/MIME message including
6255 PEM and DER. The -content option allows the content to be
6256 specified separately. This should allow things like Netscape
6257 form signing output easier to verify.
6260 *) Fix the ASN1 encoding of tags using the 'long form'.
6263 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6264 STRING types. These convert content octets to and from the
6265 underlying type. The actual tag and length octets are
6266 already assumed to have been read in and checked. These
6267 are needed because all other string types have virtually
6268 identical handling apart from the tag. By having versions
6269 of the ASN1 functions that just operate on content octets
6270 IMPLICIT tagging can be handled properly. It also allows
6271 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6272 and ASN1_INTEGER are identical apart from the tag.
6275 *) Change the handling of OID objects as follows:
6277 - New object identifiers are inserted in objects.txt, following
6278 the syntax given in objects.README.
6279 - objects.pl is used to process obj_mac.num and create a new
6281 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6284 This is currently kind of a hack, and the perl code in objects.pl
6285 isn't very elegant, but it works as I intended. The simplest way
6286 to check that it worked correctly is to look in obj_dat.h and
6287 check the array nid_objs and make sure the objects haven't moved
6288 around (this is important!). Additions are OK, as well as
6289 consistent name changes.
6292 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6295 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6296 The given file adds to whatever has already been seeded into the
6297 random pool through the RANDFILE configuration file option or
6298 environment variable, or the default random state file.
6301 *) mkstack.pl now sorts each macro group into lexical order.
6302 Previously the output order depended on the order the files
6303 appeared in the directory, resulting in needless rewriting
6307 *) Patches to make OpenSSL compile under Win32 again. Mostly
6308 work arounds for the VC++ problem that it treats func() as
6309 func(void). Also stripped out the parts of mkdef.pl that
6310 added extra typesafe functions: these no longer exist.
6313 *) Reorganisation of the stack code. The macros are now all
6314 collected in safestack.h . Each macro is defined in terms of
6315 a "stack macro" of the form SKM_<name>(type, a, b). The
6316 DEBUG_SAFESTACK is now handled in terms of function casts,
6317 this has the advantage of retaining type safety without the
6318 use of additional functions. If DEBUG_SAFESTACK is not defined
6319 then the non typesafe macros are used instead. Also modified the
6320 mkstack.pl script to handle the new form. Needs testing to see
6321 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6322 the default if no major problems. Similar behaviour for ASN1_SET_OF
6323 and PKCS12_STACK_OF.
6326 *) When some versions of IIS use the 'NET' form of private key the
6327 key derivation algorithm is different. Normally MD5(password) is
6328 used as a 128 bit RC4 key. In the modified case
6329 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6330 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6331 as the old Netscape_RSA functions except they have an additional
6332 'sgckey' parameter which uses the modified algorithm. Also added
6333 an -sgckey command line option to the rsa utility. Thanks to
6334 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6335 algorithm to openssl-dev.
6338 *) The evp_local.h macros were using 'c.##kname' which resulted in
6339 invalid expansion on some systems (SCO 5.0.5 for example).
6340 Corrected to 'c.kname'.
6341 [Phillip Porch <root@theporch.com>]
6343 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6344 a STACK of email addresses from a certificate or request, these look
6345 in the subject name and the subject alternative name extensions and
6346 omit any duplicate addresses.
6349 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6350 This makes DSA verification about 2 % faster.
6353 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6354 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6355 plus overhead for 1024 bit moduli).
6356 This makes exponentiations about 0.5 % faster for 1024 bit
6357 exponents (as measured by "openssl speed rsa2048").
6360 *) Rename memory handling macros to avoid conflicts with other
6362 Malloc => OPENSSL_malloc
6363 Malloc_locked => OPENSSL_malloc_locked
6364 Realloc => OPENSSL_realloc
6365 Free => OPENSSL_free
6368 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6369 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6372 *) CygWin32 support.
6373 [John Jarvie <jjarvie@newsguy.com>]
6375 *) The type-safe stack code has been rejigged. It is now only compiled
6376 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6377 by default all type-specific stack functions are "#define"d back to
6378 standard stack functions. This results in more streamlined output
6379 but retains the type-safety checking possibilities of the original
6383 *) The STACK code has been cleaned up, and certain type declarations
6384 that didn't make a lot of sense have been brought in line. This has
6385 also involved a cleanup of sorts in safestack.h to more correctly
6386 map type-safe stack functions onto their plain stack counterparts.
6387 This work has also resulted in a variety of "const"ifications of
6388 lots of the code, especially "_cmp" operations which should normally
6389 be prototyped with "const" parameters anyway.
6392 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6393 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6394 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6395 where all of 'md' is used each time the PRNG is used, but 'state'
6396 is used only indexed by a cyclic counter. As entropy may not be
6397 well distributed from the beginning, 'md' is important as a
6398 chaining variable. However, the output function chains only half
6399 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6400 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6401 in all of 'state' being rewritten, with the new values depending
6402 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6405 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6406 the handshake is continued after ssl_verify_cert_chain();
6407 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6408 can lead to 'unexplainable' connection aborts later.
6409 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6411 *) Major EVP API cipher revision.
6412 Add hooks for extra EVP features. This allows various cipher
6413 parameters to be set in the EVP interface. Support added for variable
6414 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6415 setting of RC2 and RC5 parameters.
6417 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6420 Remove lots of duplicated code from the EVP library. For example *every*
6421 cipher init() function handles the 'iv' in the same way according to the
6422 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6423 for CFB and OFB modes they zero ctx->num.
6425 New functionality allows removal of S/MIME code RC2 hack.
6427 Most of the routines have the same form and so can be declared in terms
6430 By shifting this to the top level EVP_CipherInit() it can be removed from
6431 all individual ciphers. If the cipher wants to handle IVs or keys
6432 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6435 Change lots of functions like EVP_EncryptUpdate() to now return a
6436 value: although software versions of the algorithms cannot fail
6437 any installed hardware versions can.
6440 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6441 this option is set, tolerate broken clients that send the negotiated
6442 protocol version number instead of the requested protocol version
6446 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6447 i.e. non-zero for export ciphersuites, zero otherwise.
6448 Previous versions had this flag inverted, inconsistent with
6449 rsa_tmp_cb (..._TMP_RSA_CB).
6450 [Bodo Moeller; problem reported by Amit Chopra]
6452 *) Add missing DSA library text string. Work around for some IIS
6453 key files with invalid SEQUENCE encoding.
6456 *) Add a document (doc/standards.txt) that list all kinds of standards
6457 and so on that are implemented in OpenSSL.
6460 *) Enhance c_rehash script. Old version would mishandle certificates
6461 with the same subject name hash and wouldn't handle CRLs at all.
6462 Added -fingerprint option to crl utility, to support new c_rehash
6466 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6469 *) Fix for SSL server purpose checking. Server checking was
6470 rejecting certificates which had extended key usage present
6471 but no ssl client purpose.
6472 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6474 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6475 is a little unclear about how a blank password is handled.
6476 Since the password in encoded as a BMPString with terminating
6477 double NULL a zero length password would end up as just the
6478 double NULL. However no password at all is different and is
6479 handled differently in the PKCS#12 key generation code. NS
6480 treats a blank password as zero length. MSIE treats it as no
6481 password on export: but it will try both on import. We now do
6482 the same: PKCS12_parse() tries zero length and no password if
6483 the password is set to "" or NULL (NULL is now a valid password:
6484 it wasn't before) as does the pkcs12 application.
6487 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6488 perror when PEM_read_bio_X509_REQ fails, the error message must
6489 be obtained from the error queue.
6492 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6493 it in ERR_remove_state if appropriate, and change ERR_get_state
6494 accordingly to avoid race conditions (this is necessary because
6495 thread_hash is no longer constant once set).
6498 *) Bugfix for linux-elf makefile.one.
6501 *) RSA_get_default_method() will now cause a default
6502 RSA_METHOD to be chosen if one doesn't exist already.
6503 Previously this was only set during a call to RSA_new()
6504 or RSA_new_method(NULL) meaning it was possible for
6505 RSA_get_default_method() to return NULL.
6508 *) Added native name translation to the existing DSO code
6509 that will convert (if the flag to do so is set) filenames
6510 that are sufficiently small and have no path information
6511 into a canonical native form. Eg. "blah" converted to
6512 "libblah.so" or "blah.dll" etc.
6515 *) New function ERR_error_string_n(e, buf, len) which is like
6516 ERR_error_string(e, buf), but writes at most 'len' bytes
6517 including the 0 terminator. For ERR_error_string_n, 'buf'
6519 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6521 *) CONF library reworked to become more general. A new CONF
6522 configuration file reader "class" is implemented as well as a
6523 new functions (NCONF_*, for "New CONF") to handle it. The now
6524 old CONF_* functions are still there, but are reimplemented to
6525 work in terms of the new functions. Also, a set of functions
6526 to handle the internal storage of the configuration data is
6527 provided to make it easier to write new configuration file
6528 reader "classes" (I can definitely see something reading a
6529 configuration file in XML format, for example), called _CONF_*,
6530 or "the configuration storage API"...
6532 The new configuration file reading functions are:
6534 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6535 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6537 NCONF_default, NCONF_WIN32
6539 NCONF_dump_fp, NCONF_dump_bio
6541 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6542 NCONF_new creates a new CONF object. This works in the same way
6543 as other interfaces in OpenSSL, like the BIO interface.
6544 NCONF_dump_* dump the internal storage of the configuration file,
6545 which is useful for debugging. All other functions take the same
6546 arguments as the old CONF_* functions wth the exception of the
6547 first that must be a `CONF *' instead of a `LHASH *'.
6549 To make it easer to use the new classes with the old CONF_* functions,
6550 the function CONF_set_default_method is provided.
6553 *) Add '-tls1' option to 'openssl ciphers', which was already
6554 mentioned in the documentation but had not been implemented.
6555 (This option is not yet really useful because even the additional
6556 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6559 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6560 OpenSSL-based applications) load shared libraries and bind to
6561 them in a portable way.
6562 [Geoff Thorpe, with contributions from Richard Levitte]
6564 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6566 *) Make sure _lrotl and _lrotr are only used with MSVC.
6568 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6569 (the default implementation of RAND_status).
6571 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6572 to '-clrext' (= clear extensions), as intended and documented.
6573 [Bodo Moeller; inconsistency pointed out by Michael Attili
6576 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6577 was larger than the MD block size.
6578 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6580 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6581 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6582 using the passed key: if the passed key was a private key the result
6583 of X509_print(), for example, would be to print out all the private key
6587 *) des_quad_cksum() byte order bug fix.
6588 [Ulf Möller, using the problem description in krb4-0.9.7, where
6589 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6591 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6593 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6595 *) For easily testing in shell scripts whether some command
6596 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6597 returns with exit code 0 iff no command of the given name is available.
6598 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6599 the output goes to stdout and nothing is printed to stderr.
6600 Additional arguments are always ignored.
6602 Since for each cipher there is a command of the same name,
6603 the 'no-cipher' compilation switches can be tested this way.
6605 ('openssl no-XXX' is not able to detect pseudo-commands such
6606 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6609 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6612 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6613 is set; it will be thrown away anyway because each handshake creates
6615 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6616 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6617 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6618 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6621 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6622 'Q' and 'R' lose their special meanings (quit/renegotiate).
6623 This is part of what -quiet does; unlike -quiet, -ign_eof
6624 does not suppress any output.
6627 *) Add compatibility options to the purpose and trust code. The
6628 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6629 accepts a certificate or CA, this was the previous behaviour,
6630 with all the associated security issues.
6632 X509_TRUST_COMPAT is the old trust behaviour: only and
6633 automatically trust self signed roots in certificate store. A
6634 new trust setting X509_TRUST_DEFAULT is used to specify that
6635 a purpose has no associated trust setting and it should instead
6636 use the value in the default purpose.
6639 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6640 and fix a memory leak.
6643 *) In util/mkerr.pl (which implements 'make errors'), preserve
6644 reason strings from the previous version of the .c file, as
6645 the default to have only downcase letters (and digits) in
6646 automatically generated reasons codes is not always appropriate.
6649 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6650 using strerror. Previously, ERR_reason_error_string() returned
6651 library names as reason strings for SYSerr; but SYSerr is a special
6652 case where small numbers are errno values, not library numbers.
6655 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6656 converts DSA parameters into DH parameters. (When creating parameters,
6657 DSA_generate_parameters is used.)
6660 *) Include 'length' (recommended exponent length) in C code generated
6661 by 'openssl dhparam -C'.
6664 *) The second argument to set_label in perlasm was already being used
6665 so couldn't be used as a "file scope" flag. Moved to third argument
6669 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6670 instead of RAND_bytes for encryption IVs and salts.
6673 *) Include RAND_status() into RAND_METHOD instead of implementing
6674 it only for md_rand.c Otherwise replacing the PRNG by calling
6675 RAND_set_rand_method would be impossible.
6678 *) Don't let DSA_generate_key() enter an infinite loop if the random
6679 number generation fails.
6682 *) New 'rand' application for creating pseudo-random output.
6685 *) Added configuration support for Linux/IA64
6686 [Rolf Haberrecker <rolf@suse.de>]
6688 *) Assembler module support for Mingw32.
6691 *) Shared library support for HPUX (in shlib/).
6692 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6694 *) Shared library support for Solaris gcc.
6695 [Lutz Behnke <behnke@trustcenter.de>]
6697 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6699 *) PKCS7_encrypt() was adding text MIME headers twice because they
6700 were added manually and by SMIME_crlf_copy().
6703 *) In bntest.c don't call BN_rand with zero bits argument.
6704 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6706 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6707 case was implemented. This caused BN_div_recp() to fail occasionally.
6710 *) Add an optional second argument to the set_label() in the perl
6711 assembly language builder. If this argument exists and is set
6712 to 1 it signals that the assembler should use a symbol whose
6713 scope is the entire file, not just the current function. This
6714 is needed with MASM which uses the format label:: for this scope.
6715 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6717 *) Change the ASN1 types so they are typedefs by default. Before
6718 almost all types were #define'd to ASN1_STRING which was causing
6719 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6723 *) Change names of new functions to the new get1/get0 naming
6724 convention: After 'get1', the caller owns a reference count
6725 and has to call ..._free; 'get0' returns a pointer to some
6726 data structure without incrementing reference counters.
6727 (Some of the existing 'get' functions increment a reference
6728 counter, some don't.)
6729 Similarly, 'set1' and 'add1' functions increase reference
6730 counters or duplicate objects.
6733 *) Allow for the possibility of temp RSA key generation failure:
6734 the code used to assume it always worked and crashed on failure.
6737 *) Fix potential buffer overrun problem in BIO_printf().
6738 [Ulf Möller, using public domain code by Patrick Powell; problem
6739 pointed out by David Sacerdote <das33@cornell.edu>]
6741 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6742 RAND_egd() and RAND_status(). In the command line application,
6743 the EGD socket can be specified like a seed file using RANDFILE
6747 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6748 Some CAs (e.g. Verisign) distribute certificates in this form.
6751 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6752 list to exclude them. This means that no special compilation option
6753 is needed to use anonymous DH: it just needs to be included in the
6757 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6758 EVP_MD_type. The old functionality is available in a new macro called
6759 EVP_MD_md(). Change code that uses it and update docs.
6762 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6763 where the 'void *' argument is replaced by a function pointer argument.
6764 Previously 'void *' was abused to point to functions, which works on
6765 many platforms, but is not correct. As these functions are usually
6766 called by macros defined in OpenSSL header files, most source code
6767 should work without changes.
6770 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6771 sections with information on -D... compiler switches used for
6772 compiling the library so that applications can see them. To enable
6773 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6774 must be defined. E.g.,
6775 #define OPENSSL_ALGORITHM_DEFINES
6776 #include <openssl/opensslconf.h>
6777 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6778 [Richard Levitte, Ulf and Bodo Möller]
6780 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6784 *) Change the 'other' type in certificate aux info to a STACK_OF
6785 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6786 the required ASN1 format: arbitrary types determined by an OID.
6789 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6790 argument to 'req'. This is not because the function is newer or
6791 better than others it just uses the work 'NEW' in the certificate
6792 request header lines. Some software needs this.
6795 *) Reorganise password command line arguments: now passwords can be
6796 obtained from various sources. Delete the PEM_cb function and make
6797 it the default behaviour: i.e. if the callback is NULL and the
6798 usrdata argument is not NULL interpret it as a null terminated pass
6799 phrase. If usrdata and the callback are NULL then the pass phrase
6800 is prompted for as usual.
6803 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6804 the support is automatically enabled. The resulting binaries will
6805 autodetect the card and use it if present.
6806 [Ben Laurie and Compaq Inc.]
6808 *) Work around for Netscape hang bug. This sends certificate request
6809 and server done in one record. Since this is perfectly legal in the
6810 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6811 the bugs/SSLv3 entry for more info.
6814 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6817 *) Add -rand argument to smime and pkcs12 applications and read/write
6821 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6824 *) Add command line password options to the remaining applications.
6827 *) Bug fix for BN_div_recp() for numerators with an even number of
6831 *) More tests in bntest.c, and changed test_bn output.
6834 *) ./config recognizes MacOS X now.
6837 *) Bug fix for BN_div() when the first words of num and divsor are
6838 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6841 *) Add support for various broken PKCS#8 formats, and command line
6842 options to produce them.
6845 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6846 get temporary BIGNUMs from a BN_CTX.
6849 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6853 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6854 include a #define from the old name to the new. The original intent
6855 was that statically linked binaries could for example just call
6856 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6857 link with digests. This never worked becayse SSLeay_add_all_digests()
6858 and SSLeay_add_all_ciphers() were in the same source file so calling
6859 one would link with the other. They are now in separate source files.
6862 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6865 *) Use a less unusual form of the Miller-Rabin primality test (it used
6866 a binary algorithm for exponentiation integrated into the Miller-Rabin
6867 loop, our standard modexp algorithms are faster).
6870 *) Support for the EBCDIC character set completed.
6871 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6873 *) Source code cleanups: use const where appropriate, eliminate casts,
6874 use void * instead of char * in lhash.
6877 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6878 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6879 this the server could overwrite ephemeral keys that the client
6883 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6884 using 50 iterations of the Rabin-Miller test.
6886 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6887 iterations of the Rabin-Miller test as required by the appendix
6888 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6889 As BN_is_prime_fasttest includes trial division, DSA parameter
6890 generation becomes much faster.
6892 This implies a change for the callback functions in DSA_is_prime
6893 and DSA_generate_parameters: The callback function is called once
6894 for each positive witness in the Rabin-Miller test, not just
6895 occasionally in the inner loop; and the parameters to the
6896 callback function now provide an iteration count for the outer
6897 loop rather than for the current invocation of the inner loop.
6898 DSA_generate_parameters additionally can call the callback
6899 function with an 'iteration count' of -1, meaning that a
6900 candidate has passed the trial division test (when q is generated
6901 from an application-provided seed, trial division is skipped).
6904 *) New function BN_is_prime_fasttest that optionally does trial
6905 division before starting the Rabin-Miller test and has
6906 an additional BN_CTX * argument (whereas BN_is_prime always
6907 has to allocate at least one BN_CTX).
6908 'callback(1, -1, cb_arg)' is called when a number has passed the
6909 trial division stage.
6912 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6916 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6919 *) New function BN_pseudo_rand().
6922 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6923 bignum version of BN_from_montgomery() with the working code from
6924 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6928 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6929 made it impossible to use the same SSL_SESSION data structure in
6930 SSL2 clients in multiple threads.
6933 *) The return value of RAND_load_file() no longer counts bytes obtained
6934 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6935 to seed the PRNG (previously an explicit byte count was required).
6936 [Ulf Möller, Bodo Möller]
6938 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6939 used (char *) instead of (void *) and had casts all over the place.
6942 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6945 *) Retain source code compatibility for BN_prime_checks macro:
6946 BN_is_prime(..., BN_prime_checks, ...) now uses
6947 BN_prime_checks_for_size to determine the appropriate number of
6948 Rabin-Miller iterations.
6951 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6952 DH_CHECK_P_NOT_SAFE_PRIME.
6953 (Check if this is true? OpenPGP calls them "strong".)
6956 *) Merge the functionality of "dh" and "gendh" programs into a new program
6957 "dhparam". The old programs are retained for now but will handle DH keys
6958 (instead of parameters) in future.
6961 *) Make the ciphers, s_server and s_client programs check the return values
6962 when a new cipher list is set.
6965 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6966 ciphers. Before when the 56bit ciphers were enabled the sorting was
6969 The syntax for the cipher sorting has been extended to support sorting by
6970 cipher-strength (using the strength_bits hard coded in the tables).
6971 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6973 Fix a bug in the cipher-command parser: when supplying a cipher command
6974 string with an "undefined" symbol (neither command nor alphanumeric
6975 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6976 an error is flagged.
6978 Due to the strength-sorting extension, the code of the
6979 ssl_create_cipher_list() function was completely rearranged. I hope that
6980 the readability was also increased :-)
6981 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6983 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6984 for the first serial number and places 2 in the serial number file. This
6985 avoids problems when the root CA is created with serial number zero and
6986 the first user certificate has the same issuer name and serial number
6990 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6991 the new code. Add documentation for this stuff.
6994 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6995 X509_*() to X509at_*() on the grounds that they don't handle X509
6996 structures and behave in an analagous way to the X509v3 functions:
6997 they shouldn't be called directly but wrapper functions should be used
7000 So we also now have some wrapper functions that call the X509at functions
7001 when passed certificate requests. (TO DO: similar things can be done with
7002 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7003 things. Some of these need some d2i or i2d and print functionality
7004 because they handle more complex structures.)
7007 *) Add missing #ifndefs that caused missing symbols when building libssl
7008 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7009 NO_RSA in ssl/s2*.c.
7010 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7012 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7013 has a return value which indicates the quality of the random data
7014 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7015 error queue. New function RAND_pseudo_bytes() generates output that is
7016 guaranteed to be unique but not unpredictable. RAND_add is like
7017 RAND_seed, but takes an extra argument for an entropy estimate
7018 (RAND_seed always assumes full entropy).
7021 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7022 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7023 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7024 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7025 false-positive rate of at most 2^-80 for random input.
7028 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7031 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7032 in the 0.9.5 release), this returns the chain
7033 from an X509_CTX structure with a dup of the stack and all
7034 the X509 reference counts upped: so the stack will exist
7035 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7038 Also make SSL_SESSION_print() print out the verify return
7042 *) Add manpage for the pkcs12 command. Also change the default
7043 behaviour so MAC iteration counts are used unless the new
7044 -nomaciter option is used. This improves file security and
7045 only older versions of MSIE (4.0 for example) need it.
7048 *) Honor the no-xxx Configure options when creating .DEF files.
7051 *) Add PKCS#10 attributes to field table: challengePassword,
7052 unstructuredName and unstructuredAddress. These are taken from
7053 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7054 international characters are used.
7056 More changes to X509_ATTRIBUTE code: allow the setting of types
7057 based on strings. Remove the 'loc' parameter when adding
7058 attributes because these will be a SET OF encoding which is sorted
7062 *) Initial changes to the 'req' utility to allow request generation
7063 automation. This will allow an application to just generate a template
7064 file containing all the field values and have req construct the
7067 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7068 used all over the place including certificate requests and PKCS#7
7069 structures. They are currently handled manually where necessary with
7070 some primitive wrappers for PKCS#7. The new functions behave in a
7071 manner analogous to the X509 extension functions: they allow
7072 attributes to be looked up by NID and added.
7074 Later something similar to the X509V3 code would be desirable to
7075 automatically handle the encoding, decoding and printing of the
7076 more complex types. The string types like challengePassword can
7077 be handled by the string table functions.
7079 Also modified the multi byte string table handling. Now there is
7080 a 'global mask' which masks out certain types. The table itself
7081 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7082 is useful when for example there is only one permissible type
7083 (as in countryName) and using the mask might result in no valid
7087 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7088 SSL_get_peer_finished to allow applications to obtain the latest
7089 Finished messages sent to the peer or expected from the peer,
7090 respectively. (SSL_get_peer_finished is usually the Finished message
7091 actually received from the peer, otherwise the protocol will be aborted.)
7093 As the Finished message are message digests of the complete handshake
7094 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7095 be used for external authentication procedures when the authentication
7096 provided by SSL/TLS is not desired or is not enough.
7099 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7100 the host supports BWX extension and if Compaq C is present on the
7101 $PATH. Just exploiting of the BWX extension results in 20-30%
7102 performance kick for some algorithms, e.g. DES and RC4 to mention
7103 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7107 *) Add support for MS "fast SGC". This is arguably a violation of the
7108 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7109 weak crypto and after checking the certificate is SGC a second one
7110 with strong crypto. MS SGC stops the first handshake after receiving
7111 the server certificate message and sends a second client hello. Since
7112 a server will typically do all the time consuming operations before
7113 expecting any further messages from the client (server key exchange
7114 is the most expensive) there is little difference between the two.
7116 To get OpenSSL to support MS SGC we have to permit a second client
7117 hello message after we have sent server done. In addition we have to
7118 reset the MAC if we do get this second client hello.
7121 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7122 if a DER encoded private key is RSA or DSA traditional format. Changed
7123 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7124 format DER encoded private key. Newer code should use PKCS#8 format which
7125 has the key type encoded in the ASN1 structure. Added DER private key
7126 support to pkcs8 application.
7129 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7130 ciphersuites has been selected (as required by the SSL 3/TLS 1
7131 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7132 is set, we interpret this as a request to violate the specification
7133 (the worst that can happen is a handshake failure, and 'correct'
7134 behaviour would result in a handshake failure anyway).
7137 *) In SSL_CTX_add_session, take into account that there might be multiple
7138 SSL_SESSION structures with the same session ID (e.g. when two threads
7139 concurrently obtain them from an external cache).
7140 The internal cache can handle only one SSL_SESSION with a given ID,
7141 so if there's a conflict, we now throw out the old one to achieve
7145 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7146 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7147 some routines that use cipher OIDs: some ciphers do not have OIDs
7148 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7152 *) Simplify the trust setting structure and code. Now we just have
7153 two sequences of OIDs for trusted and rejected settings. These will
7154 typically have values the same as the extended key usage extension
7155 and any application specific purposes.
7157 The trust checking code now has a default behaviour: it will just
7158 check for an object with the same NID as the passed id. Functions can
7159 be provided to override either the default behaviour or the behaviour
7160 for a given id. SSL client, server and email already have functions
7161 in place for compatibility: they check the NID and also return "trusted"
7162 if the certificate is self signed.
7165 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7166 traditional format into an EVP_PKEY structure.
7169 *) Add a password callback function PEM_cb() which either prompts for
7170 a password if usr_data is NULL or otherwise assumes it is a null
7171 terminated password. Allow passwords to be passed on command line
7172 environment or config files in a few more utilities.
7175 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7176 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7177 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7178 Update documentation.
7181 *) Support for ASN1 "NULL" type. This could be handled before by using
7182 ASN1_TYPE but there wasn't any function that would try to read a NULL
7183 and produce an error if it couldn't. For compatibility we also have
7184 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7185 don't allocate anything because they don't need to.
7188 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7190 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7192 *) Rebuild of the memory allocation routines used by OpenSSL code and
7193 possibly others as well. The purpose is to make an interface that
7194 provide hooks so anyone can build a separate set of allocation and
7195 deallocation routines to be used by OpenSSL, for example memory
7196 pool implementations, or something else, which was previously hard
7197 since Malloc(), Realloc() and Free() were defined as macros having
7198 the values malloc, realloc and free, respectively (except for Win32
7199 compilations). The same is provided for memory debugging code.
7200 OpenSSL already comes with functionality to find memory leaks, but
7201 this gives people a chance to debug other memory problems.
7203 With these changes, a new set of functions and macros have appeared:
7205 CRYPTO_set_mem_debug_functions() [F]
7206 CRYPTO_get_mem_debug_functions() [F]
7207 CRYPTO_dbg_set_options() [F]
7208 CRYPTO_dbg_get_options() [F]
7209 CRYPTO_malloc_debug_init() [M]
7211 The memory debug functions are NULL by default, unless the library
7212 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7213 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7214 gives the standard debugging functions that come with OpenSSL) or
7215 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7216 provided by the library user) must be used. When the standard
7217 debugging functions are used, CRYPTO_dbg_set_options can be used to
7218 request additional information:
7219 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7220 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7222 Also, things like CRYPTO_set_mem_functions will always give the
7223 expected result (the new set of functions is used for allocation
7224 and deallocation) at all times, regardless of platform and compiler
7227 To finish it up, some functions that were never use in any other
7228 way than through macros have a new API and new semantic:
7231 CRYPTO_dbg_realloc()
7234 All macros of value have retained their old syntax.
7235 [Richard Levitte and Bodo Moeller]
7237 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7238 ordering of SMIMECapabilities wasn't in "strength order" and there
7239 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7243 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7244 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7245 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7247 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7248 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7249 functionality to handle multipart/signed properly) and a utility
7250 called 'smime' to call all this stuff. This is based on code I
7251 originally wrote for Celo who have kindly allowed it to be
7252 included in OpenSSL.
7255 *) Add variants des_set_key_checked and des_set_key_unchecked of
7256 des_set_key (aka des_key_sched). Global variable des_check_key
7257 decides which of these is called by des_set_key; this way
7258 des_check_key behaves as it always did, but applications and
7259 the library itself, which was buggy for des_check_key == 1,
7260 have a cleaner way to pick the version they need.
7263 *) New function PKCS12_newpass() which changes the password of a
7267 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7268 dynamic mix. In both cases the ids can be used as an index into the
7269 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7270 functions so they accept a list of the field values and the
7271 application doesn't need to directly manipulate the X509_TRUST
7275 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7279 *) Modify the way the V3 extension code looks up extensions. This now
7280 works in a similar way to the object code: we have some "standard"
7281 extensions in a static table which is searched with OBJ_bsearch()
7282 and the application can add dynamic ones if needed. The file
7283 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7284 updated whenever a new extension is added to the core code and kept
7285 in ext_nid order. There is a simple program 'tabtest.c' which checks
7286 this. New extensions are not added too often so this file can readily
7287 be maintained manually.
7289 There are two big advantages in doing things this way. The extensions
7290 can be looked up immediately and no longer need to be "added" using
7291 X509V3_add_standard_extensions(): this function now does nothing.
7292 [Side note: I get *lots* of email saying the extension code doesn't
7293 work because people forget to call this function]
7294 Also no dynamic allocation is done unless new extensions are added:
7295 so if we don't add custom extensions there is no need to call
7296 X509V3_EXT_cleanup().
7299 *) Modify enc utility's salting as follows: make salting the default. Add a
7300 magic header, so unsalted files fail gracefully instead of just decrypting
7301 to garbage. This is because not salting is a big security hole, so people
7302 should be discouraged from doing it.
7305 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7306 digest to be passed on the command line but it only used this
7307 parameter when signing a certificate. Modified so all relevant
7308 operations are affected by the digest parameter including the
7309 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7310 DSA key was used because it didn't fix the digest.
7313 *) Initial certificate chain verify code. Currently tests the untrusted
7314 certificates for consistency with the verify purpose (which is set
7315 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7317 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7318 this is because it will reject chains with invalid extensions whereas
7319 every previous version of OpenSSL and SSLeay made no checks at all.
7321 Trust code: checks the root CA for the relevant trust settings. Trust
7322 settings have an initial value consistent with the verify purpose: e.g.
7323 if the verify purpose is for SSL client use it expects the CA to be
7324 trusted for SSL client use. However the default value can be changed to
7325 permit custom trust settings: one example of this would be to only trust
7326 certificates from a specific "secure" set of CAs.
7328 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7329 which should be used for version portability: especially since the
7330 verify structure is likely to change more often now.
7332 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7333 to set them. If not set then assume SSL clients will verify SSL servers
7336 Two new options to the verify program: -untrusted allows a set of
7337 untrusted certificates to be passed in and -purpose which sets the
7338 intended purpose of the certificate. If a purpose is set then the
7339 new chain verify code is used to check extension consistency.
7342 *) Support for the authority information access extension.
7345 *) Modify RSA and DSA PEM read routines to transparently handle
7346 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7347 public keys in a format compatible with certificate
7348 SubjectPublicKeyInfo structures. Unfortunately there were already
7349 functions called *_PublicKey_* which used various odd formats so
7350 these are retained for compatibility: however the DSA variants were
7351 never in a public release so they have been deleted. Changed dsa/rsa
7352 utilities to handle the new format: note no releases ever handled public
7353 keys so we should be OK.
7355 The primary motivation for this change is to avoid the same fiasco
7356 that dogs private keys: there are several incompatible private key
7357 formats some of which are standard and some OpenSSL specific and
7358 require various evil hacks to allow partial transparent handling and
7359 even then it doesn't work with DER formats. Given the option anything
7360 other than PKCS#8 should be dumped: but the other formats have to
7361 stay in the name of compatibility.
7363 With public keys and the benefit of hindsight one standard format
7364 is used which works with EVP_PKEY, RSA or DSA structures: though
7365 it clearly returns an error if you try to read the wrong kind of key.
7367 Added a -pubkey option to the 'x509' utility to output the public key.
7368 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7369 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7370 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7371 that do the same as the EVP_PKEY_assign_*() except they up the
7372 reference count of the added key (they don't "swallow" the
7376 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7377 CRLs would fail if the file contained no certificates or no CRLs:
7378 added a new function to read in both types and return the number
7379 read: this means that if none are read it will be an error. The
7380 DER versions of the certificate and CRL reader would always fail
7381 because it isn't possible to mix certificates and CRLs in DER format
7382 without choking one or the other routine. Changed this to just read
7383 a certificate: this is the best we can do. Also modified the code
7384 in apps/verify.c to take notice of return codes: it was previously
7385 attempting to read in certificates from NULL pointers and ignoring
7386 any errors: this is one reason why the cert and CRL reader seemed
7387 to work. It doesn't check return codes from the default certificate
7388 routines: these may well fail if the certificates aren't installed.
7391 *) Code to support otherName option in GeneralName.
7394 *) First update to verify code. Change the verify utility
7395 so it warns if it is passed a self signed certificate:
7396 for consistency with the normal behaviour. X509_verify
7397 has been modified to it will now verify a self signed
7398 certificate if *exactly* the same certificate appears
7399 in the store: it was previously impossible to trust a
7400 single self signed certificate. This means that:
7401 openssl verify ss.pem
7402 now gives a warning about a self signed certificate but
7403 openssl verify -CAfile ss.pem ss.pem
7407 *) For servers, store verify_result in SSL_SESSION data structure
7408 (and add it to external session representation).
7409 This is needed when client certificate verifications fails,
7410 but an application-provided verification callback (set by
7411 SSL_CTX_set_cert_verify_callback) allows accepting the session
7412 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7413 but returns 1): When the session is reused, we have to set
7414 ssl->verify_result to the appropriate error code to avoid
7416 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7418 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7419 case in PKCS7_dataInit() where the signed PKCS7 structure
7420 didn't contain any existing data because it was being created.
7421 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7423 *) Add a salt to the key derivation routines in enc.c. This
7424 forms the first 8 bytes of the encrypted file. Also add a
7425 -S option to allow a salt to be input on the command line.
7428 *) New function X509_cmp(). Oddly enough there wasn't a function
7429 to compare two certificates. We do this by working out the SHA1
7430 hash and comparing that. X509_cmp() will be needed by the trust
7434 *) SSL_get1_session() is like SSL_get_session(), but increments
7435 the reference count in the SSL_SESSION returned.
7436 [Geoff Thorpe <geoff@eu.c2.net>]
7438 *) Fix for 'req': it was adding a null to request attributes.
7439 Also change the X509_LOOKUP and X509_INFO code to handle
7440 certificate auxiliary information.
7443 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7447 *) Add the possibility to add extra information to the memory leak
7448 detecting output, to form tracebacks, showing from where each
7449 allocation was originated: CRYPTO_push_info("constant string") adds
7450 the string plus current file name and line number to a per-thread
7451 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7452 is like calling CYRPTO_pop_info() until the stack is empty.
7453 Also updated memory leak detection code to be multi-thread-safe.
7456 *) Add options -text and -noout to pkcs7 utility and delete the
7457 encryption options which never did anything. Update docs.
7460 *) Add options to some of the utilities to allow the pass phrase
7461 to be included on either the command line (not recommended on
7462 OSes like Unix) or read from the environment. Update the
7463 manpages and fix a few bugs.
7466 *) Add a few manpages for some of the openssl commands.
7469 *) Fix the -revoke option in ca. It was freeing up memory twice,
7470 leaking and not finding already revoked certificates.
7473 *) Extensive changes to support certificate auxiliary information.
7474 This involves the use of X509_CERT_AUX structure and X509_AUX
7475 functions. An X509_AUX function such as PEM_read_X509_AUX()
7476 can still read in a certificate file in the usual way but it
7477 will also read in any additional "auxiliary information". By
7478 doing things this way a fair degree of compatibility can be
7479 retained: existing certificates can have this information added
7480 using the new 'x509' options.
7482 Current auxiliary information includes an "alias" and some trust
7483 settings. The trust settings will ultimately be used in enhanced
7484 certificate chain verification routines: currently a certificate
7485 can only be trusted if it is self signed and then it is trusted
7489 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7490 The problem was that one of the replacement routines had not been working
7491 since SSLeay releases. For now the offending routine has been replaced
7492 with non-optimised assembler. Even so, this now gives around 95%
7493 performance improvement for 1024 bit RSA signs.
7496 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7497 handling. Most clients have the effective key size in bits equal to
7498 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7499 A few however don't do this and instead use the size of the decrypted key
7500 to determine the RC2 key length and the AlgorithmIdentifier to determine
7501 the effective key length. In this case the effective key length can still
7502 be 40 bits but the key length can be 168 bits for example. This is fixed
7503 by manually forcing an RC2 key into the EVP_PKEY structure because the
7504 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7505 the key length and effective key length are equal.
7508 *) Add a bunch of functions that should simplify the creation of
7509 X509_NAME structures. Now you should be able to do:
7510 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7511 and have it automatically work out the correct field type and fill in
7512 the structures. The more adventurous can try:
7513 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7514 and it will (hopefully) work out the correct multibyte encoding.
7517 *) Change the 'req' utility to use the new field handling and multibyte
7518 copy routines. Before the DN field creation was handled in an ad hoc
7519 way in req, ca, and x509 which was rather broken and didn't support
7520 BMPStrings or UTF8Strings. Since some software doesn't implement
7521 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7522 using the dirstring_type option. See the new comment in the default
7523 openssl.cnf for more info.
7526 *) Make crypto/rand/md_rand.c more robust:
7527 - Assure unique random numbers after fork().
7528 - Make sure that concurrent threads access the global counter and
7529 md serializably so that we never lose entropy in them
7530 or use exactly the same state in multiple threads.
7531 Access to the large state is not always serializable because
7532 the additional locking could be a performance killer, and
7533 md should be large enough anyway.
7536 *) New file apps/app_rand.c with commonly needed functionality
7537 for handling the random seed file.
7539 Use the random seed file in some applications that previously did not:
7541 dsaparam -genkey (which also ignored its '-rand' option),
7544 x509 (when signing).
7545 Except on systems with /dev/urandom, it is crucial to have a random
7546 seed file at least for key creation, DSA signing, and for DH exchanges;
7547 for RSA signatures we could do without one.
7549 gendh and gendsa (unlike genrsa) used to read only the first byte
7550 of each file listed in the '-rand' option. The function as previously
7551 found in genrsa is now in app_rand.c and is used by all programs
7552 that support '-rand'.
7555 *) In RAND_write_file, use mode 0600 for creating files;
7556 don't just chmod when it may be too late.
7559 *) Report an error from X509_STORE_load_locations
7560 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7563 *) New function ASN1_mbstring_copy() this copies a string in either
7564 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7565 into an ASN1_STRING type. A mask of permissible types is passed
7566 and it chooses the "minimal" type to use or an error if not type
7570 *) Add function equivalents to the various macros in asn1.h. The old
7571 macros are retained with an M_ prefix. Code inside the library can
7572 use the M_ macros. External code (including the openssl utility)
7573 should *NOT* in order to be "shared library friendly".
7576 *) Add various functions that can check a certificate's extensions
7577 to see if it usable for various purposes such as SSL client,
7578 server or S/MIME and CAs of these types. This is currently
7579 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7580 verification. Also added a -purpose flag to x509 utility to
7581 print out all the purposes.
7584 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7588 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7589 for, obtain and decode and extension and obtain its critical flag.
7590 This allows all the necessary extension code to be handled in a
7591 single function call.
7594 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7595 platforms. See crypto/rc4/rc4_enc.c for further details.
7598 *) New -noout option to asn1parse. This causes no output to be produced
7599 its main use is when combined with -strparse and -out to extract data
7600 from a file (which may not be in ASN.1 format).
7603 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7604 when producing the local key id.
7605 [Richard Levitte <levitte@stacken.kth.se>]
7607 *) New option -dhparam in s_server. This allows a DH parameter file to be
7608 stated explicitly. If it is not stated then it tries the first server
7609 certificate file. The previous behaviour hard coded the filename
7613 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7614 a public key to be input or output. For example:
7615 openssl rsa -in key.pem -pubout -out pubkey.pem
7616 Also added necessary DSA public key functions to handle this.
7619 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7620 in the message. This was handled by allowing
7621 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7622 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7624 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7625 to the end of the strings whereas this didn't. This would cause problems
7626 if strings read with d2i_ASN1_bytes() were later modified.
7627 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7629 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7630 data and it contains EOF it will end up returning an error. This is
7631 caused by input 46 bytes long. The cause is due to the way base64
7632 BIOs find the start of base64 encoded data. They do this by trying a
7633 trial decode on each line until they find one that works. When they
7634 do a flag is set and it starts again knowing it can pass all the
7635 data directly through the decoder. Unfortunately it doesn't reset
7636 the context it uses. This means that if EOF is reached an attempt
7637 is made to pass two EOFs through the context and this causes the
7638 resulting error. This can also cause other problems as well. As is
7639 usual with these problems it takes *ages* to find and the fix is
7640 trivial: move one line.
7641 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7643 *) Ugly workaround to get s_client and s_server working under Windows. The
7644 old code wouldn't work because it needed to select() on sockets and the
7645 tty (for keypresses and to see if data could be written). Win32 only
7646 supports select() on sockets so we select() with a 1s timeout on the
7647 sockets and then see if any characters are waiting to be read, if none
7648 are present then we retry, we also assume we can always write data to
7649 the tty. This isn't nice because the code then blocks until we've
7650 received a complete line of data and it is effectively polling the
7651 keyboard at 1s intervals: however it's quite a bit better than not
7652 working at all :-) A dedicated Windows application might handle this
7653 with an event loop for example.
7656 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7657 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7658 will be called when RSA_sign() and RSA_verify() are used. This is useful
7659 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7660 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7661 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7662 This necessitated the support of an extra signature type NID_md5_sha1
7663 for SSL signatures and modifications to the SSL library to use it instead
7664 of calling RSA_public_decrypt() and RSA_private_encrypt().
7667 *) Add new -verify -CAfile and -CApath options to the crl program, these
7668 will lookup a CRL issuers certificate and verify the signature in a
7669 similar way to the verify program. Tidy up the crl program so it
7670 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7671 less strict. It will now permit CRL extensions even if it is not
7672 a V2 CRL: this will allow it to tolerate some broken CRLs.
7675 *) Initialize all non-automatic variables each time one of the openssl
7676 sub-programs is started (this is necessary as they may be started
7677 multiple times from the "OpenSSL>" prompt).
7678 [Lennart Bang, Bodo Moeller]
7680 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7681 removing all other RSA functionality (this is what NO_RSA does). This
7682 is so (for example) those in the US can disable those operations covered
7683 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7687 *) Non-copying interface to BIO pairs.
7688 (still largely untested)
7691 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7692 ASCII string. This was handled independently in various places before.
7695 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7696 UTF8 strings a character at a time.
7699 *) Use client_version from client hello to select the protocol
7700 (s23_srvr.c) and for RSA client key exchange verification
7701 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7704 *) Add various utility functions to handle SPKACs, these were previously
7705 handled by poking round in the structure internals. Added new function
7706 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7707 print, verify and generate SPKACs. Based on an original idea from
7708 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7711 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7714 *) Allow the config file extension section to be overwritten on the
7715 command line. Based on an original idea from Massimiliano Pala
7716 <madwolf@comune.modena.it>. The new option is called -extensions
7717 and can be applied to ca, req and x509. Also -reqexts to override
7718 the request extensions in req and -crlexts to override the crl extensions
7722 *) Add new feature to the SPKAC handling in ca. Now you can include
7723 the same field multiple times by preceding it by "XXXX." for example:
7726 this is the same syntax as used in the req config file.
7729 *) Allow certificate extensions to be added to certificate requests. These
7730 are specified in a 'req_extensions' option of the req section of the
7731 config file. They can be printed out with the -text option to req but
7732 are otherwise ignored at present.
7735 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7736 data read consists of only the final block it would not decrypted because
7737 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7738 A misplaced 'break' also meant the decrypted final block might not be
7739 copied until the next read.
7742 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7743 a few extra parameters to the DH structure: these will be useful if
7744 for example we want the value of 'q' or implement X9.42 DH.
7747 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7748 provides hooks that allow the default DSA functions or functions on a
7749 "per key" basis to be replaced. This allows hardware acceleration and
7750 hardware key storage to be handled without major modification to the
7751 library. Also added low level modexp hooks and CRYPTO_EX structure and
7752 associated functions.
7755 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7756 as "read only": it can't be written to and the buffer it points to will
7757 not be freed. Reading from a read only BIO is much more efficient than
7758 a normal memory BIO. This was added because there are several times when
7759 an area of memory needs to be read from a BIO. The previous method was
7760 to create a memory BIO and write the data to it, this results in two
7761 copies of the data and an O(n^2) reading algorithm. There is a new
7762 function BIO_new_mem_buf() which creates a read only memory BIO from
7763 an area of memory. Also modified the PKCS#7 routines to use read only
7767 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7768 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7769 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7770 but a retry condition occured while trying to read the rest.
7773 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7774 NID_pkcs7_encrypted by default: this was wrong since this should almost
7775 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7776 the encrypted data type: this is a more sensible place to put it and it
7777 allows the PKCS#12 code to be tidied up that duplicated this
7781 *) Changed obj_dat.pl script so it takes its input and output files on
7782 the command line. This should avoid shell escape redirection problems
7786 *) Initial support for certificate extension requests, these are included
7787 in things like Xenroll certificate requests. Included functions to allow
7788 extensions to be obtained and added.
7791 *) -crlf option to s_client and s_server for sending newlines as
7792 CRLF (as required by many protocols).
7795 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7797 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7798 [Ralf S. Engelschall]
7800 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7801 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7803 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7807 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7808 DH parameters/keys (q is lost during that conversion, but the resulting
7809 DH parameters contain its length).
7811 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7812 much faster than DH_generate_parameters (which creates parameters
7813 where p = 2*q + 1), and also the smaller q makes DH computations
7814 much more efficient (160-bit exponentiation instead of 1024-bit
7815 exponentiation); so this provides a convenient way to support DHE
7816 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7817 utter importance to use
7818 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7820 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7821 when such DH parameters are used, because otherwise small subgroup
7822 attacks may become possible!
7825 *) Avoid memory leak in i2d_DHparams.
7828 *) Allow the -k option to be used more than once in the enc program:
7829 this allows the same encrypted message to be read by multiple recipients.
7832 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7833 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7834 it will always use the numerical form of the OID, even if it has a short
7838 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7839 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7840 otherwise bn_mod_exp was called. In the case of hardware keys for example
7841 no private key components need be present and it might store extra data
7842 in the RSA structure, which cannot be accessed from bn_mod_exp.
7843 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7844 private key operations.
7847 *) Added support for SPARC Linux.
7850 *) pem_password_cb function type incompatibly changed from
7851 typedef int pem_password_cb(char *buf, int size, int rwflag);
7853 ....(char *buf, int size, int rwflag, void *userdata);
7854 so that applications can pass data to their callbacks:
7855 The PEM[_ASN1]_{read,write}... functions and macros now take an
7856 additional void * argument, which is just handed through whenever
7857 the password callback is called.
7858 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7860 New function SSL_CTX_set_default_passwd_cb_userdata.
7862 Compatibility note: As many C implementations push function arguments
7863 onto the stack in reverse order, the new library version is likely to
7864 interoperate with programs that have been compiled with the old
7865 pem_password_cb definition (PEM_whatever takes some data that
7866 happens to be on the stack as its last argument, and the callback
7867 just ignores this garbage); but there is no guarantee whatsoever that
7870 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7871 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7872 problems not only on Windows, but also on some Unix platforms.
7873 To avoid problematic command lines, these definitions are now in an
7874 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7875 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7878 *) MIPS III/IV assembler module is reimplemented.
7881 *) More DES library cleanups: remove references to srand/rand and
7882 delete an unused file.
7885 *) Add support for the the free Netwide assembler (NASM) under Win32,
7886 since not many people have MASM (ml) and it can be hard to obtain.
7887 This is currently experimental but it seems to work OK and pass all
7888 the tests. Check out INSTALL.W32 for info.
7891 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7892 without temporary keys kept an extra copy of the server key,
7893 and connections with temporary keys did not free everything in case
7897 *) New function RSA_check_key and new openssl rsa option -check
7898 for verifying the consistency of RSA keys.
7899 [Ulf Moeller, Bodo Moeller]
7901 *) Various changes to make Win32 compile work:
7902 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7903 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7904 comparison" warnings.
7905 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7908 *) Add a debugging option to PKCS#5 v2 key generation function: when
7909 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7910 derived keys are printed to stderr.
7913 *) Copy the flags in ASN1_STRING_dup().
7914 [Roman E. Pavlov <pre@mo.msk.ru>]
7916 *) The x509 application mishandled signing requests containing DSA
7917 keys when the signing key was also DSA and the parameters didn't match.
7919 It was supposed to omit the parameters when they matched the signing key:
7920 the verifying software was then supposed to automatically use the CA's
7921 parameters if they were absent from the end user certificate.
7923 Omitting parameters is no longer recommended. The test was also
7924 the wrong way round! This was probably due to unusual behaviour in
7925 EVP_cmp_parameters() which returns 1 if the parameters match.
7926 This meant that parameters were omitted when they *didn't* match and
7927 the certificate was useless. Certificates signed with 'ca' didn't have
7929 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7931 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7932 The interface is as follows:
7933 Applications can use
7934 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7935 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7936 "off" is now the default.
7937 The library internally uses
7938 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7939 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7940 to disable memory-checking temporarily.
7942 Some inconsistent states that previously were possible (and were
7943 even the default) are now avoided.
7945 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7946 with each memory chunk allocated; this is occasionally more helpful
7947 than just having a counter.
7949 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7951 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7955 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7956 which largely parallels "options", but is for changing API behaviour,
7957 whereas "options" are about protocol behaviour.
7958 Initial "mode" flags are:
7960 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7961 a single record has been written.
7962 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7963 retries use the same buffer location.
7964 (But all of the contents must be
7968 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7971 *) Fix problems with no-hmac etc.
7972 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7974 *) New functions RSA_get_default_method(), RSA_set_method() and
7975 RSA_get_method(). These allows replacement of RSA_METHODs without having
7976 to mess around with the internals of an RSA structure.
7979 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7980 Also really enable memory leak checks in openssl.c and in some
7982 [Chad C. Mulligan, Bodo Moeller]
7984 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7985 up the length of negative integers. This has now been simplified to just
7986 store the length when it is first determined and use it later, rather
7987 than trying to keep track of where data is copied and updating it to
7989 [Steve Henson, reported by Brien Wheeler
7990 <bwheeler@authentica-security.com>]
7992 *) Add a new function PKCS7_signatureVerify. This allows the verification
7993 of a PKCS#7 signature but with the signing certificate passed to the
7994 function itself. This contrasts with PKCS7_dataVerify which assumes the
7995 certificate is present in the PKCS#7 structure. This isn't always the
7996 case: certificates can be omitted from a PKCS#7 structure and be
7997 distributed by "out of band" means (such as a certificate database).
8000 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8001 function prototypes in pem.h, also change util/mkdef.pl to add the
8002 necessary function names.
8005 *) mk1mf.pl (used by Windows builds) did not properly read the
8006 options set by Configure in the top level Makefile, and Configure
8007 was not even able to write more than one option correctly.
8008 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8011 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8012 file to be loaded from a BIO or FILE pointer. The BIO version will
8013 for example allow memory BIOs to contain config info.
8016 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8017 Whoever hopes to achieve shared-library compatibility across versions
8018 must use this, not the compile-time macro.
8019 (Exercise 0.9.4: Which is the minimum library version required by
8021 Note: All this applies only to multi-threaded programs, others don't
8025 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8026 through a BIO pair triggered the default case, i.e.
8027 SSLerr(...,SSL_R_UNKNOWN_STATE).
8030 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8031 can use the SSL library even if none of the specific BIOs is
8035 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8036 for the encoded length.
8037 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8039 *) Add initial documentation of the X509V3 functions.
8042 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8043 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8044 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8045 secure PKCS#8 private key format with a high iteration count.
8048 *) Fix determination of Perl interpreter: A perl or perl5
8049 _directory_ in $PATH was also accepted as the interpreter.
8050 [Ralf S. Engelschall]
8052 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8053 wrong with it but it was very old and did things like calling
8054 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8058 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8059 to use the new extension code.
8062 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8063 with macros. This should make it easier to change their form, add extra
8064 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8068 *) Add to configuration table a new entry that can specify an alternative
8069 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8070 according to Mark Crispin <MRC@Panda.COM>.
8074 *) DES CBC did not update the IV. Weird.
8077 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8078 Changing the behaviour of the former might break existing programs --
8079 where IV updating is needed, des_ncbc_encrypt can be used.
8082 *) When bntest is run from "make test" it drives bc to check its
8083 calculations, as well as internally checking them. If an internal check
8084 fails, it needs to cause bc to give a non-zero result or make test carries
8085 on without noticing the failure. Fixed.
8088 *) DES library cleanups.
8091 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8092 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8093 ciphers. NOTE: although the key derivation function has been verified
8094 against some published test vectors it has not been extensively tested
8095 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8099 *) Instead of "mkdir -p", which is not fully portable, use new
8100 Perl script "util/mkdir-p.pl".
8103 *) Rewrite the way password based encryption (PBE) is handled. It used to
8104 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8105 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8106 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8107 the 'parameter' field of the AlgorithmIdentifier is passed to the
8108 underlying key generation function so it must do its own ASN1 parsing.
8109 This has also changed the EVP_PBE_CipherInit() function which now has a
8110 'parameter' argument instead of literal salt and iteration count values
8111 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8114 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8115 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8116 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8117 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8118 value was just used as a "magic string" and not used directly its
8119 value doesn't matter.
8122 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8126 *) "linux-sparc64" configuration (ultrapenguin).
8127 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8128 "linux-sparc" configuration.
8129 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8131 *) config now generates no-xxx options for missing ciphers.
8134 *) Support the EBCDIC character set (work in progress).
8135 File ebcdic.c not yet included because it has a different license.
8136 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8138 *) Support BS2000/OSD-POSIX.
8139 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8141 *) Make callbacks for key generation use void * instead of char *.
8144 *) Make S/MIME samples compile (not yet tested).
8147 *) Additional typesafe stacks.
8150 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8154 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8156 *) New configuration variant "sco5-gcc".
8158 *) Updated some demos.
8159 [Sean O Riordain, Wade Scholine]
8161 *) Add missing BIO_free at exit of pkcs12 application.
8164 *) Fix memory leak in conf.c.
8167 *) Updates for Win32 to assembler version of MD5.
8170 *) Set #! path to perl in apps/der_chop to where we found it
8171 instead of using a fixed path.
8174 *) SHA library changes for irix64-mips4-cc.
8177 *) Improvements for VMS support.
8181 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8183 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8184 This also avoids the problems with SC4.2 and unpatched SC5.
8185 [Andy Polyakov <appro@fy.chalmers.se>]
8187 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8188 These are required because of the typesafe stack would otherwise break
8189 existing code. If old code used a structure member which used to be STACK
8190 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8191 sk_num or sk_value it would produce an error because the num, data members
8192 are not present in STACK_OF. Now it just produces a warning. sk_set
8193 replaces the old method of assigning a value to sk_value
8194 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8195 that does this will no longer work (and should use sk_set instead) but
8196 this could be regarded as a "questionable" behaviour anyway.
8199 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8200 correctly handle encrypted S/MIME data.
8203 *) Change type of various DES function arguments from des_cblock
8204 (which means, in function argument declarations, pointer to char)
8205 to des_cblock * (meaning pointer to array with 8 char elements),
8206 which allows the compiler to do more typechecking; it was like
8207 that back in SSLeay, but with lots of ugly casts.
8209 Introduce new type const_des_cblock.
8212 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8213 problems: find RecipientInfo structure that matches recipient certificate
8214 and initialise the ASN1 structures properly based on passed cipher.
8217 *) Belatedly make the BN tests actually check the results.
8220 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8221 to and from BNs: it was completely broken. New compilation option
8222 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8223 key elements as negative integers.
8226 *) Reorganize and speed up MD5.
8227 [Andy Polyakov <appro@fy.chalmers.se>]
8230 [Richard Levitte <richard@levitte.org>]
8232 *) New option -out to asn1parse to allow the parsed structure to be
8233 output to a file. This is most useful when combined with the -strparse
8234 option to examine the output of things like OCTET STRINGS.
8237 *) Make SSL library a little more fool-proof by not requiring any longer
8238 that SSL_set_{accept,connect}_state be called before
8239 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8240 in many applications because usually everything *appeared* to work as
8241 intended anyway -- now it really works as intended).
8244 *) Move openssl.cnf out of lib/.
8247 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8248 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8249 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8250 [Ralf S. Engelschall]
8252 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8253 handle PKCS#7 enveloped data properly.
8254 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8256 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8257 copying pointers. The cert_st handling is changed by this in
8258 various ways (and thus what used to be known as ctx->default_cert
8259 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8260 any longer when s->cert does not give us what we need).
8261 ssl_cert_instantiate becomes obsolete by this change.
8262 As soon as we've got the new code right (possibly it already is?),
8263 we have solved a couple of bugs of the earlier code where s->cert
8264 was used as if it could not have been shared with other SSL structures.
8266 Note that using the SSL API in certain dirty ways now will result
8267 in different behaviour than observed with earlier library versions:
8268 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8269 does not influence s as it used to.
8271 In order to clean up things more thoroughly, inside SSL_SESSION
8272 we don't use CERT any longer, but a new structure SESS_CERT
8273 that holds per-session data (if available); currently, this is
8274 the peer's certificate chain and, for clients, the server's certificate
8275 and temporary key. CERT holds only those values that can have
8276 meaningful defaults in an SSL_CTX.
8279 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8280 from the internal representation. Various PKCS#7 fixes: remove some
8281 evil casts and set the enc_dig_alg field properly based on the signing
8285 *) Allow PKCS#12 password to be set from the command line or the
8286 environment. Let 'ca' get its config file name from the environment
8287 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8291 *) Allow certificate policies extension to use an IA5STRING for the
8292 organization field. This is contrary to the PKIX definition but
8293 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8297 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8298 without disallowing inline assembler and the like for non-pedantic builds.
8301 *) Support Borland C++ builder.
8302 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8307 *) SHA-1 cleanups and performance enhancements.
8308 [Andy Polyakov <appro@fy.chalmers.se>]
8310 *) Sparc v8plus assembler for the bignum library.
8311 [Andy Polyakov <appro@fy.chalmers.se>]
8313 *) Accept any -xxx and +xxx compiler options in Configure.
8316 *) Update HPUX configuration.
8319 *) Add missing sk_<type>_unshift() function to safestack.h
8320 [Ralf S. Engelschall]
8322 *) New function SSL_CTX_use_certificate_chain_file that sets the
8323 "extra_cert"s in addition to the certificate. (This makes sense
8324 only for "PEM" format files, as chains as a whole are not
8328 *) Support verify_depth from the SSL API.
8329 x509_vfy.c had what can be considered an off-by-one-error:
8330 Its depth (which was not part of the external interface)
8331 was actually counting the number of certificates in a chain;
8332 now it really counts the depth.
8335 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8336 instead of X509err, which often resulted in confusing error
8337 messages since the error codes are not globally unique
8338 (e.g. an alleged error in ssl3_accept when a certificate
8339 didn't match the private key).
8341 *) New function SSL_CTX_set_session_id_context that allows to set a default
8342 value (so that you don't need SSL_set_session_id_context for each
8343 connection using the SSL_CTX).
8346 *) OAEP decoding bug fix.
8349 *) Support INSTALL_PREFIX for package builders, as proposed by
8353 *) New Configure options "threads" and "no-threads". For systems
8354 where the proper compiler options are known (currently Solaris
8355 and Linux), "threads" is the default.
8358 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8361 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8362 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8363 such as /usr/local/bin.
8366 *) "make linux-shared" to build shared libraries.
8367 [Niels Poppe <niels@netbox.org>]
8369 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8372 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8373 extension adding in x509 utility.
8376 *) Remove NOPROTO sections and error code comments.
8379 *) Partial rewrite of the DEF file generator to now parse the ANSI
8383 *) New Configure options --prefix=DIR and --openssldir=DIR.
8386 *) Complete rewrite of the error code script(s). It is all now handled
8387 by one script at the top level which handles error code gathering,
8388 header rewriting and C source file generation. It should be much better
8389 than the old method: it now uses a modified version of Ulf's parser to
8390 read the ANSI prototypes in all header files (thus the old K&R definitions
8391 aren't needed for error creation any more) and do a better job of
8392 translating function codes into names. The old 'ASN1 error code imbedded
8393 in a comment' is no longer necessary and it doesn't use .err files which
8394 have now been deleted. Also the error code call doesn't have to appear all
8395 on one line (which resulted in some large lines...).
8398 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8401 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8402 0 (which usually indicates a closed connection), but continue reading.
8405 *) Fix some race conditions.
8408 *) Add support for CRL distribution points extension. Add Certificate
8409 Policies and CRL distribution points documentation.
8412 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8415 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8416 8 of keying material. Merlin has also confirmed interop with this fix
8417 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8418 [Merlin Hughes <merlin@baltimore.ie>]
8420 *) Fix lots of warnings.
8421 [Richard Levitte <levitte@stacken.kth.se>]
8423 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8424 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8425 [Richard Levitte <levitte@stacken.kth.se>]
8427 *) Fix problems with sizeof(long) == 8.
8428 [Andy Polyakov <appro@fy.chalmers.se>]
8430 *) Change functions to ANSI C.
8433 *) Fix typos in error codes.
8434 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8436 *) Remove defunct assembler files from Configure.
8439 *) SPARC v8 assembler BIGNUM implementation.
8440 [Andy Polyakov <appro@fy.chalmers.se>]
8442 *) Support for Certificate Policies extension: both print and set.
8443 Various additions to support the r2i method this uses.
8446 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8447 return a const string when you are expecting an allocated buffer.
8450 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8451 types DirectoryString and DisplayText.
8454 *) Add code to allow r2i extensions to access the configuration database,
8455 add an LHASH database driver and add several ctx helper functions.
8458 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8459 fail when they extended the size of a BIGNUM.
8462 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8463 support typesafe stack.
8466 *) Fix typo in SSL_[gs]et_options().
8467 [Nils Frostberg <nils@medcom.se>]
8469 *) Delete various functions and files that belonged to the (now obsolete)
8470 old X509V3 handling code.
8473 *) New Configure option "rsaref".
8476 *) Don't auto-generate pem.h.
8479 *) Introduce type-safe ASN.1 SETs.
8482 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8483 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8485 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8486 that links with OpenSSL (well at least cause lots of warnings), but fear
8487 not: the conversion is trivial, and it eliminates loads of evil casts. A
8488 few STACKed things have been converted already. Feel free to convert more.
8489 In the fullness of time, I'll do away with the STACK type altogether.
8492 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8493 specified in <certfile> by updating the entry in the index.txt file.
8494 This way one no longer has to edit the index.txt file manually for
8495 revoking a certificate. The -revoke option does the gory details now.
8496 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8498 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8499 `-text' option at all and this way the `-noout -text' combination was
8500 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8501 [Ralf S. Engelschall]
8503 *) Make sure a corresponding plain text error message exists for the
8504 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8505 verify callback function determined that a certificate was revoked.
8506 [Ralf S. Engelschall]
8508 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8509 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8510 all available cipers including rc5, which was forgotten until now.
8511 In order to let the testing shell script know which algorithms
8512 are available, a new (up to now undocumented) command
8513 "openssl list-cipher-commands" is used.
8516 *) Bugfix: s_client occasionally would sleep in select() when
8517 it should have checked SSL_pending() first.
8520 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8521 the raw DSA values prior to ASN.1 encoding.
8524 *) Tweaks to Configure
8525 [Niels Poppe <niels@netbox.org>]
8527 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8531 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8534 *) New config option to avoid instructions that are illegal on the 80386.
8535 The default code is faster, but requires at least a 486.
8538 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8539 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8540 same as SSL2_VERSION anyway.
8543 *) New "-showcerts" option for s_client.
8546 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8547 application. Various cleanups and fixes.
8550 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8551 modify error routines to work internally. Add error codes and PBE init
8552 to library startup routines.
8555 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8556 packing functions to asn1 and evp. Changed function names and error
8557 codes along the way.
8560 *) PKCS12 integration: and so it begins... First of several patches to
8561 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8562 objects to objects.h
8565 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8566 and display support for Thawte strong extranet extension.
8569 *) Add LinuxPPC support.
8570 [Jeff Dubrule <igor@pobox.org>]
8572 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8573 bn_div_words in alpha.s.
8574 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8576 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8577 OAEP isn't supported when OpenSSL is built with RSAref.
8578 [Ulf Moeller <ulf@fitug.de>]
8580 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8581 so they no longer are missing under -DNOPROTO.
8582 [Soren S. Jorvang <soren@t.dk>]
8585 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8587 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8588 doesn't work when the session is reused. Coming soon!
8591 *) Fix a security hole, that allows sessions to be reused in the wrong
8592 context thus bypassing client cert protection! All software that uses
8593 client certs and session caches in multiple contexts NEEDS PATCHING to
8594 allow session reuse! A fuller solution is in the works.
8595 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8597 *) Some more source tree cleanups (removed obsolete files
8598 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8599 permission on "config" script to be executable) and a fix for the INSTALL
8601 [Ulf Moeller <ulf@fitug.de>]
8603 *) Remove some legacy and erroneous uses of malloc, free instead of
8605 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8607 *) Make rsa_oaep_test return non-zero on error.
8608 [Ulf Moeller <ulf@fitug.de>]
8610 *) Add support for native Solaris shared libraries. Configure
8611 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8612 if someone would make that last step automatic.
8613 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8615 *) ctx_size was not built with the right compiler during "make links". Fixed.
8618 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8619 except NULL ciphers". This means the default cipher list will no longer
8620 enable NULL ciphers. They need to be specifically enabled e.g. with
8621 the string "DEFAULT:eNULL".
8624 *) Fix to RSA private encryption routines: if p < q then it would
8625 occasionally produce an invalid result. This will only happen with
8626 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8629 *) Be less restrictive and allow also `perl util/perlpath.pl
8630 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8631 because this way one can also use an interpreter named `perl5' (which is
8632 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8633 installed as `perl').
8634 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8636 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8637 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8639 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8640 advapi32.lib to Win32 build and change the pem test comparision
8641 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8642 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8643 and crypto/des/ede_cbcm_enc.c.
8646 *) DES quad checksum was broken on big-endian architectures. Fixed.
8649 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8650 Win32 test batch file so it (might) work again. The Win32 test batch file
8651 is horrible: I feel ill....
8654 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8655 in e_os.h. Audit of header files to check ANSI and non ANSI
8656 sections: 10 functions were absent from non ANSI section and not exported
8657 from Windows DLLs. Fixed up libeay.num for new functions.
8660 *) Make `openssl version' output lines consistent.
8661 [Ralf S. Engelschall]
8663 *) Fix Win32 symbol export lists for BIO functions: Added
8664 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8665 to ms/libeay{16,32}.def.
8666 [Ralf S. Engelschall]
8668 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8669 fine under Unix and passes some trivial tests I've now added. But the
8670 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8671 added to make sure no one expects that this stuff really works in the
8672 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8673 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8675 [Ralf S. Engelschall]
8677 *) Fix the generation of two part addresses in perl.
8678 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8680 *) Add config entry for Linux on MIPS.
8681 [John Tobey <jtobey@channel1.com>]
8683 *) Make links whenever Configure is run, unless we are on Windoze.
8686 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8687 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8691 *) Add a useful kludge to allow package maintainers to specify compiler and
8692 other platforms details on the command line without having to patch the
8693 Configure script everytime: One now can use ``perl Configure
8694 <id>:<details>'', i.e. platform ids are allowed to have details appended
8695 to them (seperated by colons). This is treated as there would be a static
8696 pre-configured entry in Configure's %table under key <id> with value
8697 <details> and ``perl Configure <id>'' is called. So, when you want to
8698 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8699 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8700 now, which overrides the FreeBSD-elf entry on-the-fly.
8701 [Ralf S. Engelschall]
8703 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8706 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8707 on the `perl Configure ...' command line. This way one can compile
8708 OpenSSL libraries with Position Independent Code (PIC) which is needed
8709 for linking it into DSOs.
8710 [Ralf S. Engelschall]
8712 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8716 *) Cleaned up the LICENSE document: The official contact for any license
8717 questions now is the OpenSSL core team under openssl-core@openssl.org.
8718 And add a paragraph about the dual-license situation to make sure people
8719 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8720 to the OpenSSL toolkit.
8721 [Ralf S. Engelschall]
8723 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8724 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8725 Additonally cleaned up the `make links' target: Remove unnecessary
8726 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8727 to speed processing and no longer clutter the display with confusing
8728 stuff. Instead only the actually done links are displayed.
8729 [Ralf S. Engelschall]
8731 *) Permit null encryption ciphersuites, used for authentication only. It used
8732 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8733 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8737 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8738 signed attributes when verifying signatures (this would break them),
8739 the detached data encoding was wrong and public keys obtained using
8740 X509_get_pubkey() weren't freed.
8743 *) Add text documentation for the BUFFER functions. Also added a work around
8744 to a Win95 console bug. This was triggered by the password read stuff: the
8745 last character typed gets carried over to the next fread(). If you were
8746 generating a new cert request using 'req' for example then the last
8747 character of the passphrase would be CR which would then enter the first
8751 *) Added the new `Includes OpenSSL Cryptography Software' button as
8752 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8753 button and can be used by applications based on OpenSSL to show the
8754 relationship to the OpenSSL project.
8755 [Ralf S. Engelschall]
8757 *) Remove confusing variables in function signatures in files
8758 ssl/ssl_lib.c and ssl/ssl.h.
8759 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8761 *) Don't install bss_file.c under PREFIX/include/
8762 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8764 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8765 functions that return function pointers and has support for NT specific
8766 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8767 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8768 unsigned to signed types: this was killing the Win32 compile.
8771 *) Add new certificate file to stack functions,
8772 SSL_add_dir_cert_subjects_to_stack() and
8773 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8774 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8775 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8776 This means that Apache-SSL and similar packages don't have to mess around
8777 to add as many CAs as they want to the preferred list.
8780 *) Experiment with doxygen documentation. Currently only partially applied to
8782 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8783 openssl.doxy as the configuration file.
8786 *) Get rid of remaining C++-style comments which strict C compilers hate.
8787 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8789 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8790 compiled in by default: it has problems with large keys.
8793 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8794 DH private keys and/or callback functions which directly correspond to
8795 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8796 is needed for applications which have to configure certificates on a
8797 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8799 For the RSA certificate situation is makes no difference, but
8800 for the DSA certificate situation this fixes the "no shared cipher"
8801 problem where the OpenSSL cipher selection procedure failed because the
8802 temporary keys were not overtaken from the context and the API provided
8803 no way to reconfigure them.
8804 The new functions now let applications reconfigure the stuff and they
8805 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8806 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8807 non-public-API function ssl_cert_instantiate() is used as a helper
8808 function and also to reduce code redundancy inside ssl_rsa.c.
8809 [Ralf S. Engelschall]
8811 *) Move s_server -dcert and -dkey options out of the undocumented feature
8812 area because they are useful for the DSA situation and should be
8813 recognized by the users.
8814 [Ralf S. Engelschall]
8816 *) Fix the cipher decision scheme for export ciphers: the export bits are
8817 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8818 SSL_EXP_MASK. So, the original variable has to be used instead of the
8819 already masked variable.
8820 [Richard Levitte <levitte@stacken.kth.se>]
8822 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8823 [Richard Levitte <levitte@stacken.kth.se>]
8825 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8826 from `int' to `unsigned int' because it's a length and initialized by
8827 EVP_DigestFinal() which expects an `unsigned int *'.
8828 [Richard Levitte <levitte@stacken.kth.se>]
8830 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8831 script. Instead use the usual Shell->Perl transition trick.
8832 [Ralf S. Engelschall]
8834 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8835 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8836 -noout -modulus' as it's already the case for `openssl rsa -noout
8837 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8838 currently the public key is printed (a decision which was already done by
8839 `openssl dsa -modulus' in the past) which serves a similar purpose.
8840 Additionally the NO_RSA no longer completely removes the whole -modulus
8841 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8843 [Ralf S. Engelschall]
8845 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8846 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8847 [Arne Ansper <arne@ats.cyber.ee>]
8849 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8850 to be added. Now both 'req' and 'ca' can use new objects defined in the
8854 *) Add cool BIO that does syslog (or event log on NT).
8855 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8857 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8858 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8859 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8860 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8863 *) Add preliminary config info for new extension code.
8866 *) Make RSA_NO_PADDING really use no padding.
8867 [Ulf Moeller <ulf@fitug.de>]
8869 *) Generate errors when private/public key check is done.
8872 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8873 for some CRL extensions and new objects added.
8876 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8877 key usage extension and fuller support for authority key id.
8880 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8881 padding method for RSA, which is recommended for new applications in PKCS
8882 #1 v2.0 (RFC 2437, October 1998).
8883 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8884 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8885 against Bleichbacher's attack on RSA.
8886 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8889 *) Updates to the new SSL compression code
8890 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8892 *) Fix so that the version number in the master secret, when passed
8893 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8894 (because the server will not accept higher), that the version number
8895 is 0x03,0x01, not 0x03,0x00
8896 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8898 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8899 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8900 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8903 *) Support for RAW extensions where an arbitrary extension can be
8904 created by including its DER encoding. See apps/openssl.cnf for
8908 *) Make sure latest Perl versions don't interpret some generated C array
8909 code as Perl array code in the crypto/err/err_genc.pl script.
8910 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8912 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8913 not many people have the assembler. Various Win32 compilation fixes and
8914 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8918 *) Modify configure script 'Configure' to automatically create crypto/date.h
8919 file under Win32 and also build pem.h from pem.org. New script
8920 util/mkfiles.pl to create the MINFO file on environments that can't do a
8921 'make files': perl util/mkfiles.pl >MINFO should work.
8924 *) Major rework of DES function declarations, in the pursuit of correctness
8925 and purity. As a result, many evil casts evaporated, and some weirdness,
8926 too. You may find this causes warnings in your code. Zapping your evil
8927 casts will probably fix them. Mostly.
8930 *) Fix for a typo in asn1.h. Bug fix to object creation script
8931 obj_dat.pl. It considered a zero in an object definition to mean
8932 "end of object": none of the objects in objects.h have any zeros
8933 so it wasn't spotted.
8934 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8936 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8937 Masking (CBCM). In the absence of test vectors, the best I have been able
8938 to do is check that the decrypt undoes the encrypt, so far. Send me test
8939 vectors if you have them.
8942 *) Correct calculation of key length for export ciphers (too much space was
8943 allocated for null ciphers). This has not been tested!
8946 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8947 message is now correct (it understands "crypto" and "ssl" on its
8948 command line). There is also now an "update" option. This will update
8949 the util/ssleay.num and util/libeay.num files with any new functions.
8951 perl util/mkdef.pl crypto ssl update
8952 it will update them.
8955 *) Overhauled the Perl interface (perl/*):
8956 - ported BN stuff to OpenSSL's different BN library
8957 - made the perl/ source tree CVS-aware
8958 - renamed the package from SSLeay to OpenSSL (the files still contain
8959 their history because I've copied them in the repository)
8960 - removed obsolete files (the test scripts will be replaced
8961 by better Test::Harness variants in the future)
8962 [Ralf S. Engelschall]
8964 *) First cut for a very conservative source tree cleanup:
8965 1. merge various obsolete readme texts into doc/ssleay.txt
8966 where we collect the old documents and readme texts.
8967 2. remove the first part of files where I'm already sure that we no
8968 longer need them because of three reasons: either they are just temporary
8969 files which were left by Eric or they are preserved original files where
8970 I've verified that the diff is also available in the CVS via "cvs diff
8971 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8972 the crypto/md/ stuff).
8973 [Ralf S. Engelschall]
8975 *) More extension code. Incomplete support for subject and issuer alt
8976 name, issuer and authority key id. Change the i2v function parameters
8977 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8978 what that's for :-) Fix to ASN1 macro which messed up
8979 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8982 *) Preliminary support for ENUMERATED type. This is largely copied from the
8986 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8987 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8989 *) Make sure `make rehash' target really finds the `openssl' program.
8990 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8992 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8993 like to hear about it if this slows down other processors.
8996 *) Add CygWin32 platform information to Configure script.
8997 [Alan Batie <batie@aahz.jf.intel.com>]
8999 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9000 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9002 *) New program nseq to manipulate netscape certificate sequences
9005 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9009 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9010 but the BN code had some problems that would cause failures when
9011 doing certificate verification and some other functions.
9012 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9014 *) Add ASN1 and PEM code to support netscape certificate sequences.
9017 *) Add ASN1 and PEM code to support netscape certificate sequences.
9020 *) Add several PKIX and private extended key usage OIDs.
9023 *) Modify the 'ca' program to handle the new extension code. Modify
9024 openssl.cnf for new extension format, add comments.
9027 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9028 and add a sample to openssl.cnf so req -x509 now adds appropriate
9032 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9033 error code, add initial support to X509_print() and x509 application.
9036 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9037 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9038 stuff is currently isolated and isn't even compiled yet.
9041 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9042 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9043 Removed the versions check from X509 routines when loading extensions:
9044 this allows certain broken certificates that don't set the version
9045 properly to be processed.
9048 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9049 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9050 can still be regenerated with "make depend".
9053 *) Spelling mistake in C version of CAST-128.
9054 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9056 *) Changes to the error generation code. The perl script err-code.pl
9057 now reads in the old error codes and retains the old numbers, only
9058 adding new ones if necessary. It also only changes the .err files if new
9059 codes are added. The makefiles have been modified to only insert errors
9060 when needed (to avoid needlessly modifying header files). This is done
9061 by only inserting errors if the .err file is newer than the auto generated
9062 C file. To rebuild all the error codes from scratch (the old behaviour)
9063 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9064 or delete all the .err files.
9067 *) CAST-128 was incorrectly implemented for short keys. The C version has
9068 been fixed, but is untested. The assembler versions are also fixed, but
9069 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9070 to regenerate it if needed.
9071 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9072 Hagino <itojun@kame.net>]
9074 *) File was opened incorrectly in randfile.c.
9075 [Ulf Möller <ulf@fitug.de>]
9077 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9078 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9079 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9080 al: it's just almost always a UTCTime. Note this patch adds new error
9081 codes so do a "make errors" if there are problems.
9084 *) Correct Linux 1 recognition in config.
9085 [Ulf Möller <ulf@fitug.de>]
9087 *) Remove pointless MD5 hash when using DSA keys in ca.
9088 [Anonymous <nobody@replay.com>]
9090 *) Generate an error if given an empty string as a cert directory. Also
9091 generate an error if handed NULL (previously returned 0 to indicate an
9092 error, but didn't set one).
9093 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9095 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9098 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9099 parameters. This was causing a warning which killed off the Win32 compile.
9102 *) Remove C++ style comments from crypto/bn/bn_local.h.
9103 [Neil Costigan <neil.costigan@celocom.com>]
9105 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9106 based on a text string, looking up short and long names and finally
9107 "dot" format. The "dot" format stuff didn't work. Added new function
9108 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9109 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9110 OID is not part of the table.
9113 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9114 X509_LOOKUP_by_alias().
9117 *) Sort openssl functions by name.
9120 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9121 encryption from sample DSA keys (in case anyone is interested the password
9125 *) Make _all_ *_free functions accept a NULL pointer.
9126 [Frans Heymans <fheymans@isaserver.be>]
9128 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9130 [Anonymous <nobody@replay.com>]
9132 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9133 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9135 *) Don't blow it for numeric -newkey arguments to apps/req.
9136 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9138 *) Temp key "for export" tests were wrong in s3_srvr.c.
9139 [Anonymous <nobody@replay.com>]
9141 *) Add prototype for temp key callback functions
9142 SSL_CTX_set_tmp_{rsa,dh}_callback().
9145 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9146 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9149 *) X509_name_add_entry() freed the wrong thing after an error.
9150 [Arne Ansper <arne@ats.cyber.ee>]
9152 *) rsa_eay.c would attempt to free a NULL context.
9153 [Arne Ansper <arne@ats.cyber.ee>]
9155 *) BIO_s_socket() had a broken should_retry() on Windoze.
9156 [Arne Ansper <arne@ats.cyber.ee>]
9158 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9159 [Arne Ansper <arne@ats.cyber.ee>]
9161 *) Make sure the already existing X509_STORE->depth variable is initialized
9162 in X509_STORE_new(), but document the fact that this variable is still
9163 unused in the certificate verification process.
9164 [Ralf S. Engelschall]
9166 *) Fix the various library and apps files to free up pkeys obtained from
9167 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9170 *) Fix reference counting in X509_PUBKEY_get(). This makes
9171 demos/maurice/example2.c work, amongst others, probably.
9172 [Steve Henson and Ben Laurie]
9174 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9175 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9176 are no longer created. This way we have a single and consistent command
9177 line interface `openssl <command>', similar to `cvs <command>'.
9178 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9180 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9181 BIT STRING wrapper always have zero unused bits.
9184 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9187 *) Make the top-level INSTALL documentation easier to understand.
9190 *) Makefiles updated to exit if an error occurs in a sub-directory
9191 make (including if user presses ^C) [Paul Sutton]
9193 *) Make Montgomery context stuff explicit in RSA data structure.
9196 *) Fix build order of pem and err to allow for generated pem.h.
9199 *) Fix renumbering bug in X509_NAME_delete_entry().
9202 *) Enhanced the err-ins.pl script so it makes the error library number
9203 global and can add a library name. This is needed for external ASN1 and
9204 other error libraries.
9207 *) Fixed sk_insert which never worked properly.
9210 *) Fix ASN1 macros so they can handle indefinite length construted
9211 EXPLICIT tags. Some non standard certificates use these: they can now
9215 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9216 into a single doc/ssleay.txt bundle. This way the information is still
9217 preserved but no longer messes up this directory. Now it's new room for
9218 the new set of documenation files.
9219 [Ralf S. Engelschall]
9221 *) SETs were incorrectly DER encoded. This was a major pain, because they
9222 shared code with SEQUENCEs, which aren't coded the same. This means that
9223 almost everything to do with SETs or SEQUENCEs has either changed name or
9224 number of arguments.
9225 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9227 *) Fix test data to work with the above.
9230 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9231 was already fixed by Eric for 0.9.1 it seems.
9232 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9234 *) Autodetect FreeBSD3.
9237 *) Fix various bugs in Configure. This affects the following platforms:
9241 unixware-2.0-pentium
9245 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9246 before they are needed.
9249 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9253 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9255 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9256 changed SSLeay to OpenSSL in version strings.
9257 [Ralf S. Engelschall]
9259 *) Some fixups to the top-level documents.
9262 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9263 because the symlink to include/ was missing.
9264 [Ralf S. Engelschall]
9266 *) Incorporated the popular no-RSA/DSA-only patches
9267 which allow to compile a RSA-free SSLeay.
9268 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9270 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9271 when "ssleay" is still not found.
9272 [Ralf S. Engelschall]
9274 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9275 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9277 *) Updated the README file.
9278 [Ralf S. Engelschall]
9280 *) Added various .cvsignore files in the CVS repository subdirs
9281 to make a "cvs update" really silent.
9282 [Ralf S. Engelschall]
9284 *) Recompiled the error-definition header files and added
9285 missing symbols to the Win32 linker tables.
9286 [Ralf S. Engelschall]
9288 *) Cleaned up the top-level documents;
9289 o new files: CHANGES and LICENSE
9290 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9291 o merged COPYRIGHT into LICENSE
9292 o removed obsolete TODO file
9293 o renamed MICROSOFT to INSTALL.W32
9294 [Ralf S. Engelschall]
9296 *) Removed dummy files from the 0.9.1b source tree:
9297 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9298 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9299 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9300 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9301 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9302 [Ralf S. Engelschall]
9304 *) Added various platform portability fixes.
9307 *) The Genesis of the OpenSSL rpject:
9308 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9309 Young and Tim J. Hudson created while they were working for C2Net until
9311 [The OpenSSL Project]
9314 Changes between 0.9.0b and 0.9.1b [not released]
9316 *) Updated a few CA certificates under certs/
9319 *) Changed some BIGNUM api stuff.
9322 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9323 DGUX x86, Linux Alpha, etc.
9326 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9327 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9331 *) Add -strparse option to asn1pars program which parses nested
9333 [Dr Stephen Henson <shenson@bigfoot.com>]
9335 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9338 *) DSA fix for "ca" program.
9341 *) Added "-genkey" option to "dsaparam" program.
9344 *) Added RIPE MD160 (rmd160) message digest.
9347 *) Added -a (all) option to "ssleay version" command.
9350 *) Added PLATFORM define which is the id given to Configure.
9353 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9356 *) Extended the ASN.1 parser routines.
9359 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9362 *) Added a BN_CTX to the BN library.
9365 *) Fixed the weak key values in DES library
9368 *) Changed API in EVP library for cipher aliases.
9371 *) Added support for RC2/64bit cipher.
9374 *) Converted the lhash library to the crypto/mem.c functions.
9377 *) Added more recognized ASN.1 object ids.
9380 *) Added more RSA padding checks for SSL/TLS.
9383 *) Added BIO proxy/filter functionality.
9386 *) Added extra_certs to SSL_CTX which can be used
9387 send extra CA certificates to the client in the CA cert chain sending
9388 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9391 *) Now Fortezza is denied in the authentication phase because
9392 this is key exchange mechanism is not supported by SSLeay at all.
9395 *) Additional PKCS1 checks.
9398 *) Support the string "TLSv1" for all TLS v1 ciphers.
9401 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9402 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9405 *) Fixed a few memory leaks.
9408 *) Fixed various code and comment typos.
9411 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9412 bytes sent in the client random.
9413 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob