5 Changes between 0.9.8m (?) and 1.0.0 [xx XXX xxxx]
7 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
8 output hashes compatible with older versions of OpenSSL.
9 [Willy Weisz <weisz@vcpc.univie.ac.at>]
11 *) Fix compression algorithm handling: if resuming a session use the
12 compression algorithm of the resumed session instead of determining
13 it from client hello again. Don't allow server to change algorithm.
16 *) Add load_crls() function to apps tidying load_certs() too. Add option
17 to verify utility to allow additional CRLs to be included.
20 *) Update OCSP request code to permit adding custom headers to the request:
21 some responders need this.
24 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
26 [Julia Lawall <julia@diku.dk>]
28 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
29 needlessly dereferenced structures, used obsolete functions and
30 didn't handle all updated verify codes correctly.
33 *) Disable MD2 in the default configuration.
36 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
37 indicate the initial BIO being pushed or popped. This makes it possible
38 to determine whether the BIO is the one explicitly called or as a result
39 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
40 it handles reference counts correctly and doesn't zero out the I/O bio
41 when it is not being explicitly popped. WARNING: applications which
42 included workarounds for the old buggy behaviour will need to be modified
43 or they could free up already freed BIOs.
46 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
47 renaming to all platforms (within the 0.9.8 branch, this was
48 done conditionally on Netware platforms to avoid a name clash).
49 [Guenter <lists@gknw.net>]
51 *) Add ECDHE and PSK support to DTLS.
52 [Michael Tuexen <tuexen@fh-muenster.de>]
54 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
58 *) Add "missing" function EVP_MD_flags() (without this the only way to
59 retrieve a digest flags is by accessing the structure directly. Update
60 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
61 or cipher is registered as in the "from" argument. Print out all
62 registered digests in the dgst usage message instead of manually
63 attempting to work them out.
66 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
67 this allows the use of compression and extensions. Change default cipher
68 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
69 by default unless an application cipher string requests it.
72 *) Alter match criteria in PKCS12_parse(). It used to try to use local
73 key ids to find matching certificates and keys but some PKCS#12 files
74 don't follow the (somewhat unwritten) rules and this strategy fails.
75 Now just gather all certificates together and the first private key
76 then look for the first certificate that matches the key.
79 *) Support use of registered digest and cipher names for dgst and cipher
80 commands instead of having to add each one as a special case. So now
87 openssl dgst -sha256 foo
89 and this works for ENGINE based algorithms too.
93 *) Update Gost ENGINE to support parameter files.
94 [Victor B. Wagner <vitus@cryptocom.ru>]
96 *) Support GeneralizedTime in ca utility.
97 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
99 *) Enhance the hash format used for certificate directory links. The new
100 form uses the canonical encoding (meaning equivalent names will work
101 even if they aren't identical) and uses SHA1 instead of MD5. This form
102 is incompatible with the older format and as a result c_rehash should
103 be used to rebuild symbolic links.
106 *) Make PKCS#8 the default write format for private keys, replacing the
107 traditional format. This form is standardised, more secure and doesn't
108 include an implicit MD5 dependency.
111 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
112 committed to OpenSSL should pass this lot as a minimum.
115 *) Add session ticket override functionality for use by EAP-FAST.
116 [Jouni Malinen <j@w1.fi>]
118 *) Modify HMAC functions to return a value. Since these can be implemented
119 in an ENGINE errors can occur.
122 *) Type-checked OBJ_bsearch_ex.
125 *) Type-checked OBJ_bsearch. Also some constification necessitated
126 by type-checking. Still to come: TXT_DB, bsearch(?),
127 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
131 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
132 seconds to a tm structure directly, instead of going through OS
133 specific date routines. This avoids any issues with OS routines such
134 as the year 2038 bug. New *_adj() functions for ASN1 time structures
135 and X509_time_adj_ex() to cover the extended range. The existing
136 X509_time_adj() is still usable and will no longer have any date issues.
139 *) Delta CRL support. New use deltas option which will attempt to locate
140 and search any appropriate delta CRLs available.
142 This work was sponsored by Google.
145 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
146 code and add additional score elements. Validate alternate CRL paths
147 as part of the CRL checking and indicate a new error "CRL path validation
148 error" in this case. Applications wanting additional details can use
149 the verify callback and check the new "parent" field. If this is not
150 NULL CRL path validation is taking place. Existing applications wont
151 see this because it requires extended CRL support which is off by
154 This work was sponsored by Google.
157 *) Support for freshest CRL extension.
159 This work was sponsored by Google.
162 *) Initial indirect CRL support. Currently only supported in the CRLs
163 passed directly and not via lookup. Process certificate issuer
164 CRL entry extension and lookup CRL entries by bother issuer name
165 and serial number. Check and process CRL issuer entry in IDP extension.
167 This work was sponsored by Google.
170 *) Add support for distinct certificate and CRL paths. The CRL issuer
171 certificate is validated separately in this case. Only enabled if
172 an extended CRL support flag is set: this flag will enable additional
173 CRL functionality in future.
175 This work was sponsored by Google.
178 *) Add support for policy mappings extension.
180 This work was sponsored by Google.
183 *) Fixes to pathlength constraint, self issued certificate handling,
184 policy processing to align with RFC3280 and PKITS tests.
186 This work was sponsored by Google.
189 *) Support for name constraints certificate extension. DN, email, DNS
190 and URI types are currently supported.
192 This work was sponsored by Google.
195 *) To cater for systems that provide a pointer-based thread ID rather
196 than numeric, deprecate the current numeric thread ID mechanism and
197 replace it with a structure and associated callback type. This
198 mechanism allows a numeric "hash" to be extracted from a thread ID in
199 either case, and on platforms where pointers are larger than 'long',
200 mixing is done to help ensure the numeric 'hash' is usable even if it
201 can't be guaranteed unique. The default mechanism is to use "&errno"
202 as a pointer-based thread ID to distinguish between threads.
204 Applications that want to provide their own thread IDs should now use
205 CRYPTO_THREADID_set_callback() to register a callback that will call
206 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
208 Note that ERR_remove_state() is now deprecated, because it is tied
209 to the assumption that thread IDs are numeric. ERR_remove_state(0)
210 to free the current thread's error state should be replaced by
211 ERR_remove_thread_state(NULL).
213 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
214 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
215 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
216 application was previously providing a numeric thread callback that
217 was inappropriate for distinguishing threads, then uniqueness might
218 have been obtained with &errno that happened immediately in the
219 intermediate development versions of OpenSSL; this is no longer the
220 case, the numeric thread callback will now override the automatic use
222 [Geoff Thorpe, with help from Bodo Moeller]
224 *) Initial support for different CRL issuing certificates. This covers a
225 simple case where the self issued certificates in the chain exist and
226 the real CRL issuer is higher in the existing chain.
228 This work was sponsored by Google.
231 *) Removed effectively defunct crypto/store from the build.
234 *) Revamp of STACK to provide stronger type-checking. Still to come:
235 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
236 ASN1_STRING, CONF_VALUE.
239 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
240 RAM on SSL connections. This option can save about 34k per idle SSL.
243 *) Revamp of LHASH to provide stronger type-checking. Still to come:
244 STACK, TXT_DB, bsearch, qsort.
247 *) Initial support for Cryptographic Message Syntax (aka CMS) based
248 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
249 support for data, signedData, compressedData, digestedData and
250 encryptedData, envelopedData types included. Scripts to check against
251 RFC4134 examples draft and interop and consistency checks of many
252 content types and variants.
255 *) Add options to enc utility to support use of zlib compression BIO.
258 *) Extend mk1mf to support importing of options and assembly language
259 files from Configure script, currently only included in VC-WIN32.
260 The assembly language rules can now optionally generate the source
261 files from the associated perl scripts.
264 *) Implement remaining functionality needed to support GOST ciphersuites.
265 Interop testing has been performed using CryptoPro implementations.
266 [Victor B. Wagner <vitus@cryptocom.ru>]
268 *) s390x assembler pack.
271 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
275 *) Implement Opaque PRF Input TLS extension as specified in
276 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
277 official specification yet and no extension type assignment by
278 IANA exists, this extension (for now) will have to be explicitly
279 enabled when building OpenSSL by providing the extension number
280 to use. For example, specify an option
282 -DTLSEXT_TYPE_opaque_prf_input=0x9527
284 to the "config" or "Configure" script to enable the extension,
285 assuming extension number 0x9527 (which is a completely arbitrary
286 and unofficial assignment based on the MD5 hash of the Internet
287 Draft). Note that by doing so, you potentially lose
288 interoperability with other TLS implementations since these might
289 be using the same extension number for other purposes.
291 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
292 opaque PRF input value to use in the handshake. This will create
293 an interal copy of the length-'len' string at 'src', and will
294 return non-zero for success.
296 To get more control and flexibility, provide a callback function
299 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
300 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
304 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
307 Callback function 'cb' will be called in handshakes, and is
308 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
309 Argument 'arg' is for application purposes (the value as given to
310 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
311 be provided to the callback function). The callback function
312 has to return non-zero to report success: usually 1 to use opaque
313 PRF input just if possible, or 2 to enforce use of the opaque PRF
314 input. In the latter case, the library will abort the handshake
315 if opaque PRF input is not successfully negotiated.
317 Arguments 'peerinput' and 'len' given to the callback function
318 will always be NULL and 0 in the case of a client. A server will
319 see the client's opaque PRF input through these variables if
320 available (NULL and 0 otherwise). Note that if the server
321 provides an opaque PRF input, the length must be the same as the
322 length of the client's opaque PRF input.
324 Note that the callback function will only be called when creating
325 a new session (session resumption can resume whatever was
326 previously negotiated), and will not be called in SSL 2.0
327 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
328 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
329 for applications that need to enforce opaque PRF input.
333 *) Update ssl code to support digests other than SHA1+MD5 for handshake
336 [Victor B. Wagner <vitus@cryptocom.ru>]
338 *) Add RFC4507 support to OpenSSL. This includes the corrections in
339 RFC4507bis. The encrypted ticket format is an encrypted encoded
340 SSL_SESSION structure, that way new session features are automatically
343 If a client application caches session in an SSL_SESSION structure
344 support is transparent because tickets are now stored in the encoded
347 The SSL_CTX structure automatically generates keys for ticket
348 protection in servers so again support should be possible
349 with no application modification.
351 If a client or server wishes to disable RFC4507 support then the option
352 SSL_OP_NO_TICKET can be set.
354 Add a TLS extension debugging callback to allow the contents of any client
355 or server extensions to be examined.
357 This work was sponsored by Google.
360 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
361 OpenSSL should now compile cleanly on gcc 4.2
362 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
364 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
365 support including streaming MAC support: this is required for GOST
367 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
369 *) Add option -stream to use PKCS#7 streaming in smime utility. New
370 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
371 to output in BER and PEM format.
374 *) Experimental support for use of HMAC via EVP_PKEY interface. This
375 allows HMAC to be handled via the EVP_DigestSign*() interface. The
376 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
377 ENGINE support for HMAC keys which are unextractable. New -mac and
378 -macopt options to dgst utility.
381 *) New option -sigopt to dgst utility. Update dgst to use
382 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
383 alternative signing paramaters such as X9.31 or PSS in the dgst
387 *) Change ssl_cipher_apply_rule(), the internal function that does
388 the work each time a ciphersuite string requests enabling
389 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
390 removing ("!foo+bar") a class of ciphersuites: Now it maintains
391 the order of disabled ciphersuites such that those ciphersuites
392 that most recently went from enabled to disabled not only stay
393 in order with respect to each other, but also have higher priority
394 than other disabled ciphersuites the next time ciphersuites are
397 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
398 the same ciphersuites as with "HIGH" alone, but in a specific
399 order where the PSK ciphersuites come first (since they are the
400 most recently disabled ciphersuites when "HIGH" is parsed).
402 Also, change ssl_create_cipher_list() (using this new
403 funcionality) such that between otherwise identical
404 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
408 *) Change ssl_create_cipher_list() so that it automatically
409 arranges the ciphersuites in reasonable order before starting
410 to process the rule string. Thus, the definition for "DEFAULT"
411 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
412 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
413 This makes it much easier to arrive at a reasonable default order
414 in applications for which anonymous ciphers are OK (meaning
415 that you can't actually use DEFAULT).
416 [Bodo Moeller; suggested by Victor Duchovni]
418 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
419 processing) into multiple integers instead of setting
420 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
421 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
422 (These masks as well as the individual bit definitions are hidden
423 away into the non-exported interface ssl/ssl_locl.h, so this
424 change to the definition of the SSL_CIPHER structure shouldn't
425 affect applications.) This give us more bits for each of these
426 categories, so there is no longer a need to coagulate AES128 and
427 AES256 into a single algorithm bit, and to coagulate Camellia128
428 and Camellia256 into a single algorithm bit, which has led to all
431 Thus, among other things, the kludge introduced in 0.9.7m and
432 0.9.8e for masking out AES256 independently of AES128 or masking
433 out Camellia256 independently of AES256 is not needed here in 0.9.9.
435 With the change, we also introduce new ciphersuite aliases that
436 so far were missing: "AES128", "AES256", "CAMELLIA128", and
440 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
441 Use the leftmost N bytes of the signature input if the input is
442 larger than the prime q (with N being the size in bytes of q).
445 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
446 it yet and it is largely untested.
449 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
452 *) Initial incomplete changes to avoid need for function casts in OpenSSL
453 some compilers (gcc 4.2 and later) reject their use. Safestack is
454 reimplemented. Update ASN1 to avoid use of legacy functions.
457 *) Win32/64 targets are linked with Winsock2.
460 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
461 to external functions. This can be used to increase CRL handling
462 efficiency especially when CRLs are very large by (for example) storing
463 the CRL revoked certificates in a database.
466 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
467 new CRLs added to a directory can be used. New command line option
468 -verify_return_error to s_client and s_server. This causes real errors
469 to be returned by the verify callback instead of carrying on no matter
470 what. This reflects the way a "real world" verify callback would behave.
473 *) GOST engine, supporting several GOST algorithms and public key formats.
474 Kindly donated by Cryptocom.
477 *) Partial support for Issuing Distribution Point CRL extension. CRLs
478 partitioned by DP are handled but no indirect CRL or reason partitioning
479 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
480 selected via a scoring technique which handles IDP and AKID in CRLs.
483 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
484 will ultimately be used for all verify operations: this will remove the
485 X509_STORE dependency on certificate verification and allow alternative
486 lookup methods. X509_STORE based implementations of these two callbacks.
489 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
490 Modify get_crl() to find a valid (unexpired) CRL if possible.
493 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
494 this would be called X509_CRL_cmp() but that name is already used by
495 a function that just compares CRL issuer names. Cache several CRL
496 extensions in X509_CRL structure and cache CRLDP in X509.
499 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
500 this maps equivalent X509_NAME structures into a consistent structure.
501 Name comparison can then be performed rapidly using memcmp().
504 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
508 *) Allow digests to supply their own micalg string for S/MIME type using
509 the ctrl EVP_MD_CTRL_MICALG.
512 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
513 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
514 ctrl. It can then customise the structure before and/or after signing
518 *) New function OBJ_add_sigid() to allow application defined signature OIDs
519 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
520 to free up any added signature OIDs.
523 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
524 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
525 digest and cipher tables. New options added to openssl utility:
526 list-message-digest-algorithms and list-cipher-algorithms.
529 *) Change the array representation of binary polynomials: the list
530 of degrees of non-zero coefficients is now terminated with -1.
531 Previously it was terminated with 0, which was also part of the
532 value; thus, the array representation was not applicable to
533 polynomials where t^0 has coefficient zero. This change makes
534 the array representation useful in a more general context.
537 *) Various modifications and fixes to SSL/TLS cipher string
538 handling. For ECC, the code now distinguishes between fixed ECDH
539 with RSA certificates on the one hand and with ECDSA certificates
540 on the other hand, since these are separate ciphersuites. The
541 unused code for Fortezza ciphersuites has been removed.
543 For consistency with EDH, ephemeral ECDH is now called "EECDH"
544 (not "ECDHE"). For consistency with the code for DH
545 certificates, use of ECDH certificates is now considered ECDH
546 authentication, not RSA or ECDSA authentication (the latter is
547 merely the CA's signing algorithm and not actively used in the
550 The temporary ciphersuite alias "ECCdraft" is no longer
551 available, and ECC ciphersuites are no longer excluded from "ALL"
552 and "DEFAULT". The following aliases now exist for RFC 4492
553 ciphersuites, most of these by analogy with the DH case:
555 kECDHr - ECDH cert, signed with RSA
556 kECDHe - ECDH cert, signed with ECDSA
557 kECDH - ECDH cert (signed with either RSA or ECDSA)
558 kEECDH - ephemeral ECDH
559 ECDH - ECDH cert or ephemeral ECDH
565 AECDH - anonymous ECDH
566 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
570 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
571 Use correct micalg parameters depending on digest(s) in signed message.
574 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
575 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
578 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
579 an engine to register a method. Add ENGINE lookups for methods and
580 functional reference processing.
583 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
584 EVP_{Sign,Verify}* which allow an application to customise the signature
588 *) New -resign option to smime utility. This adds one or more signers
589 to an existing PKCS#7 signedData structure. Also -md option to use an
590 alternative message digest algorithm for signing.
593 *) Tidy up PKCS#7 routines and add new functions to make it easier to
594 create PKCS7 structures containing multiple signers. Update smime
595 application to support multiple signers.
598 *) New -macalg option to pkcs12 utility to allow setting of an alternative
602 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
603 Reorganize PBE internals to lookup from a static table using NIDs,
604 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
605 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
606 PRF which will be automatically used with PBES2.
609 *) Replace the algorithm specific calls to generate keys in "req" with the
613 *) Update PKCS#7 enveloped data routines to use new API. This is now
614 supported by any public key method supporting the encrypt operation. A
615 ctrl is added to allow the public key algorithm to examine or modify
616 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
620 *) Add a ctrl to asn1 method to allow a public key algorithm to express
621 a default digest type to use. In most cases this will be SHA1 but some
622 algorithms (such as GOST) need to specify an alternative digest. The
623 return value indicates how strong the prefernce is 1 means optional and
624 2 is mandatory (that is it is the only supported type). Modify
625 ASN1_item_sign() to accept a NULL digest argument to indicate it should
626 use the default md. Update openssl utilities to use the default digest
627 type for signing if it is not explicitly indicated.
630 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
631 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
632 signing method from the key type. This effectively removes the link
633 between digests and public key types.
636 *) Add an OID cross reference table and utility functions. Its purpose is to
637 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
638 rsaEncryption. This will allow some of the algorithm specific hackery
639 needed to use the correct OID to be removed.
642 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
643 structures for PKCS7_sign(). They are now set up by the relevant public
647 *) Add provisional EC pkey method with support for ECDSA and ECDH.
650 *) Add support for key derivation (agreement) in the API, DH method and
654 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
655 public and private key formats. As a side effect these add additional
656 command line functionality not previously available: DSA signatures can be
657 generated and verified using pkeyutl and DH key support and generation in
662 [Oliver Tappe <zooey@hirschkaefer.de>]
664 *) New make target "install_html_docs" installs HTML renditions of the
666 [Oliver Tappe <zooey@hirschkaefer.de>]
668 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
669 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
670 support key and parameter generation and add initial key generation
671 functionality for RSA.
674 *) Add functions for main EVP_PKEY_method operations. The undocumented
675 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
676 EVP_PKEY_{encrypt,decrypt}_old.
679 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
680 key API, doesn't do much yet.
683 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
684 public key algorithms. New option to openssl utility:
685 "list-public-key-algorithms" to print out info.
688 *) Implement the Supported Elliptic Curves Extension for
689 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
692 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
693 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
696 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
697 utilities such as rsa, dsa, dsaparam etc except they process any key
701 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
702 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
703 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
707 *) Initial support for pluggable public key ASN1.
708 De-spaghettify the public key ASN1 handling. Move public and private
709 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
710 algorithm specific handling to a single module within the relevant
711 algorithm directory. Add functions to allow (near) opaque processing
712 of public and private key structures.
715 *) Implement the Supported Point Formats Extension for
716 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
719 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
720 for the psk identity [hint] and the psk callback functions to the
721 SSL_SESSION, SSL and SSL_CTX structure.
724 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
728 SSL_CTX_use_psk_identity_hint
729 SSL_get_psk_identity_hint
731 SSL_use_psk_identity_hint
733 [Mika Kousa and Pasi Eronen of Nokia Corporation]
735 *) Add RFC 3161 compliant time stamp request creation, response generation
736 and response verification functionality.
737 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
739 *) Add initial support for TLS extensions, specifically for the server_name
740 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
741 have new members for a host name. The SSL data structure has an
742 additional member SSL_CTX *initial_ctx so that new sessions can be
743 stored in that context to allow for session resumption, even after the
744 SSL has been switched to a new SSL_CTX in reaction to a client's
745 server_name extension.
747 New functions (subject to change):
750 SSL_get_servername_type()
753 New CTRL codes and macros (subject to change):
755 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
756 - SSL_CTX_set_tlsext_servername_callback()
757 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
758 - SSL_CTX_set_tlsext_servername_arg()
759 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
761 openssl s_client has a new '-servername ...' option.
763 openssl s_server has new options '-servername_host ...', '-cert2 ...',
764 '-key2 ...', '-servername_fatal' (subject to change). This allows
765 testing the HostName extension for a specific single host name ('-cert'
766 and '-key' remain fallbacks for handshakes without HostName
767 negotiation). If the unrecogninzed_name alert has to be sent, this by
768 default is a warning; it becomes fatal with the '-servername_fatal'
771 [Peter Sylvester, Remy Allais, Christophe Renou]
773 *) Whirlpool hash implementation is added.
776 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
777 bn(64,32). Because of instruction set limitations it doesn't have
778 any negative impact on performance. This was done mostly in order
779 to make it possible to share assembler modules, such as bn_mul_mont
780 implementations, between 32- and 64-bit builds without hassle.
783 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
784 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
788 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
789 dedicated Montgomery multiplication procedure, is introduced.
790 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
791 "64-bit" performance on certain 32-bit targets.
794 *) New option SSL_OP_NO_COMP to disable use of compression selectively
795 in SSL structures. New SSL ctrl to set maximum send fragment size.
796 Save memory by seeting the I/O buffer sizes dynamically instead of
797 using the maximum available value.
800 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
801 in addition to the text details.
804 *) Very, very preliminary EXPERIMENTAL support for printing of general
805 ASN1 structures. This currently produces rather ugly output and doesn't
806 handle several customised structures at all.
809 *) Integrated support for PVK file format and some related formats such
810 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
811 these in the 'rsa' and 'dsa' utilities.
814 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
817 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
818 place for the (very old) "NETSCAPE" format certificates which are now
819 handled using new ASN1 code equivalents.
822 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
823 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
824 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
827 *) Modify CRL distribution points extension code to print out previously
828 unsupported fields. Enhance extension setting code to allow setting of
832 *) Add print and set support for Issuing Distribution Point CRL extension.
835 *) Change 'Configure' script to enable Camellia by default.
838 Changes between 0.9.8l (?) and 0.9.8m (?) [xx XXX xxxx]
840 *) Modify compression code so it frees up structures without using the
841 ex_data callbacks. This works around a problem where some applications
842 call CRYPTO_free_all_ex_data() before application exit (e.g. when
843 restarting) then use compression (e.g. SSL with compression) later.
844 This results in significant per-connection memory leaks and
845 has caused some security issues including CVE-2008-1678 and
849 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
850 change when encrypting or decrypting.
853 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
854 connect (but not renegotiate) with servers which do not support RI.
855 Until RI is more widely deployed this option is enabled by default.
858 *) Add "missing" ssl ctrls to clear options and mode.
861 *) If client attempts to renegotiate and doesn't support RI respond with
862 a no_renegotiation alert as required by draft-ietf-tls-renegotiation.
863 Some renegotiating TLS clients will continue a connection gracefully
864 when they receive the alert. Unfortunately OpenSSL mishandled
865 this alert and would hang waiting for a server hello which it will never
866 receive. Now we treat a received no_renegotiation alert as a fatal
867 error. This is because applications requesting a renegotiation might well
868 expect it to succeed and would have no code in place to handle the server
869 denying it so the only safe thing to do is to terminate the connection.
872 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
873 peer supports secure renegotiation and 0 otherwise. Print out peer
874 renegotiation support in s_client/s_server.
877 *) Replace the highly broken and deprecated SPKAC certification method with
878 the updated NID creation version. This should correctly handle UTF8.
881 *) Implement draft-ietf-tls-renegotiation-03. Re-enable
882 renegotiation but require the extension as needed. Unfortunately,
883 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION turns out to be a
884 bad idea. It has been replaced by
885 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
886 SSL_CTX_set_options(). This is really not recommended unless you
887 know what you are doing.
888 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
890 *) Fixes to stateless session resumption handling. Use initial_ctx when
891 issuing and attempting to decrypt tickets in case it has changed during
892 servername handling. Use a non-zero length session ID when attempting
893 stateless session resumption: this makes it possible to determine if
894 a resumption has occurred immediately after receiving server hello
895 (several places in OpenSSL subtly assume this) instead of later in
899 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
900 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
901 fixes for a few places where the return code is not checked
903 [Julia Lawall <julia@diku.dk>]
905 *) Add --strict-warnings option to Configure script to include devteam
906 warnings in other configurations.
909 *) Add support for --libdir option and LIBDIR variable in makefiles. This
910 makes it possible to install openssl libraries in locations which
911 have names other than "lib", for example "/usr/lib64" which some
913 [Steve Henson, based on patch from Jeremy Utley]
915 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
916 X690 8.9.12 and can produce some misleading textual output of OIDs.
917 [Steve Henson, reported by Dan Kaminsky]
919 *) Delete MD2 from algorithm tables. This follows the recommendation in
920 several standards that it is not used in new applications due to
921 several cryptographic weaknesses. For binary compatibility reasons
922 the MD2 API is still compiled in by default.
925 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
929 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
930 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
932 [Guenter <lists@gknw.net>]
934 *) Fix the server certificate chain building code to use X509_verify_cert(),
935 it used to have an ad-hoc builder which was unable to cope with anything
936 other than a simple chain.
937 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
939 *) Don't check self signed certificate signatures in X509_verify_cert()
940 by default (a flag can override this): it just wastes time without
941 adding any security. As a useful side effect self signed root CAs
942 with non-FIPS digests are now usable in FIPS mode.
945 *) In dtls1_process_out_of_seq_message() the check if the current message
946 is already buffered was missing. For every new message was memory
947 allocated, allowing an attacker to perform an denial of service attack
948 with sending out of seq handshake messages until there is no memory
949 left. Additionally every future messege was buffered, even if the
950 sequence number made no sense and would be part of another handshake.
951 So only messages with sequence numbers less than 10 in advance will be
952 buffered. (CVE-2009-1378)
953 [Robin Seggelmann, discovered by Daniel Mentz]
955 *) Records are buffered if they arrive with a future epoch to be
956 processed after finishing the corresponding handshake. There is
957 currently no limitation to this buffer allowing an attacker to perform
958 a DOS attack with sending records with future epochs until there is no
959 memory left. This patch adds the pqueue_size() function to detemine
960 the size of a buffer and limits the record buffer to 100 entries.
962 [Robin Seggelmann, discovered by Daniel Mentz]
964 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
965 parent structure is freed. (CVE-2009-1379)
968 *) Handle non-blocking I/O properly in SSL_shutdown() call.
969 [Darryl Miles <darryl-mailinglists@netbauds.net>]
972 [Ilya O. <vrghost@gmail.com>]
974 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
976 *) Disable renegotiation completely - this fixes a severe security
977 problem (CVE-2009-3555) at the cost of breaking all
978 renegotiation. Renegotiation can be re-enabled by setting
979 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
980 run-time. This is really not recommended unless you know what
984 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
986 *) Don't set val to NULL when freeing up structures, it is freed up by
987 underlying code. If sizeof(void *) > sizeof(long) this can result in
988 zeroing past the valid field. (CVE-2009-0789)
989 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
991 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
992 checked correctly. This would allow some invalid signed attributes to
993 appear to verify correctly. (CVE-2009-0591)
994 [Ivan Nestlerode <inestlerode@us.ibm.com>]
996 *) Reject UniversalString and BMPString types with invalid lengths. This
997 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
998 a legal length. (CVE-2009-0590)
1001 *) Set S/MIME signing as the default purpose rather than setting it
1002 unconditionally. This allows applications to override it at the store
1006 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1007 to handle some structures.
1010 *) Improve efficiency of mem_gets: don't search whole buffer each time
1012 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1014 *) New -hex option for openssl rand.
1017 *) Print out UTF8String and NumericString when parsing ASN1.
1020 *) Support NumericString type for name components.
1023 *) Allow CC in the environment to override the automatically chosen
1024 compiler. Note that nothing is done to ensure flags work with the
1028 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1030 *) Properly check EVP_VerifyFinal() and similar return values
1032 [Ben Laurie, Bodo Moeller, Google Security Team]
1034 *) Enable TLS extensions by default.
1037 *) Allow the CHIL engine to be loaded, whether the application is
1038 multithreaded or not. (This does not release the developer from the
1039 obligation to set up the dynamic locking callbacks.)
1040 [Sander Temme <sander@temme.net>]
1042 *) Use correct exit code if there is an error in dgst command.
1043 [Steve Henson; problem pointed out by Roland Dirlewanger]
1045 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1046 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1049 *) Add experimental JPAKE support, including demo authentication in
1050 s_client and s_server.
1053 *) Set the comparison function in v3_addr_canonize().
1054 [Rob Austein <sra@hactrn.net>]
1056 *) Add support for XMPP STARTTLS in s_client.
1057 [Philip Paeps <philip@freebsd.org>]
1059 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1060 to ensure that even with this option, only ciphersuites in the
1061 server's preference list will be accepted. (Note that the option
1062 applies only when resuming a session, so the earlier behavior was
1063 just about the algorithm choice for symmetric cryptography.)
1066 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1068 *) Fix NULL pointer dereference if a DTLS server received
1069 ChangeCipherSpec as first record (CVE-2009-1386).
1072 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1073 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1076 *) The fix in 0.9.8c that supposedly got rid of unsafe
1077 double-checked locking was incomplete for RSA blinding,
1078 addressing just one layer of what turns out to have been
1079 doubly unsafe triple-checked locking.
1081 So now fix this for real by retiring the MONT_HELPER macro
1082 in crypto/rsa/rsa_eay.c.
1084 [Bodo Moeller; problem pointed out by Marius Schilder]
1086 *) Various precautionary measures:
1088 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1090 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1091 (NB: This would require knowledge of the secret session ticket key
1092 to exploit, in which case you'd be SOL either way.)
1094 - Change bn_nist.c so that it will properly handle input BIGNUMs
1095 outside the expected range.
1097 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1100 [Neel Mehta, Bodo Moeller]
1102 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1103 the load fails. Useful for distros.
1104 [Ben Laurie and the FreeBSD team]
1106 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1109 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1112 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1114 This work was sponsored by Logica.
1117 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1118 keystores. Support for SSL/TLS client authentication too.
1119 Not compiled unless enable-capieng specified to Configure.
1121 This work was sponsored by Logica.
1124 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1125 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1126 attribute creation routines such as certifcate requests and PKCS#12
1130 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1132 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1133 handshake which could lead to a cilent crash as found using the
1134 Codenomicon TLS test suite (CVE-2008-1672)
1135 [Steve Henson, Mark Cox]
1137 *) Fix double free in TLS server name extensions which could lead to
1138 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1141 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1143 Clear the error queue to ensure that error entries left from
1144 older function calls do not interfere with the correct operation.
1145 [Lutz Jaenicke, Erik de Castro Lopo]
1147 *) Remove root CA certificates of commercial CAs:
1149 The OpenSSL project does not recommend any specific CA and does not
1150 have any policy with respect to including or excluding any CA.
1151 Therefore it does not make any sense to ship an arbitrary selection
1152 of root CA certificates with the OpenSSL software.
1155 *) RSA OAEP patches to fix two separate invalid memory reads.
1156 The first one involves inputs when 'lzero' is greater than
1157 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1158 before the beginning of from). The second one involves inputs where
1159 the 'db' section contains nothing but zeroes (there is a one-byte
1160 invalid read after the end of 'db').
1161 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1163 *) Partial backport from 0.9.9-dev:
1165 Introduce bn_mul_mont (dedicated Montgomery multiplication
1166 procedure) as a candidate for BIGNUM assembler implementation.
1167 While 0.9.9-dev uses assembler for various architectures, only
1168 x86_64 is available by default here in the 0.9.8 branch, and
1169 32-bit x86 is available through a compile-time setting.
1171 To try the 32-bit x86 assembler implementation, use Configure
1172 option "enable-montasm" (which exists only for this backport).
1174 As "enable-montasm" for 32-bit x86 disclaims code stability
1175 anyway, in this constellation we activate additional code
1176 backported from 0.9.9-dev for further performance improvements,
1177 namely BN_from_montgomery_word. (To enable this otherwise,
1178 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1180 [Andy Polyakov (backport partially by Bodo Moeller)]
1182 *) Add TLS session ticket callback. This allows an application to set
1183 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1184 values. This is useful for key rollover for example where several key
1185 sets may exist with different names.
1188 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1189 This was broken until now in 0.9.8 releases, such that the only way
1190 a registered ENGINE could be used (assuming it initialises
1191 successfully on the host) was to explicitly set it as the default
1192 for the relevant algorithms. This is in contradiction with 0.9.7
1193 behaviour and the documentation. With this fix, when an ENGINE is
1194 registered into a given algorithm's table of implementations, the
1195 'uptodate' flag is reset so that auto-discovery will be used next
1196 time a new context for that algorithm attempts to select an
1198 [Ian Lister (tweaked by Geoff Thorpe)]
1200 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1201 implemention in the following ways:
1203 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1206 Lack of BER streaming support means one pass streaming processing is
1207 only supported if data is detached: setting the streaming flag is
1208 ignored for embedded content.
1210 CMS support is disabled by default and must be explicitly enabled
1211 with the enable-cms configuration option.
1214 *) Update the GMP engine glue to do direct copies between BIGNUM and
1215 mpz_t when openssl and GMP use the same limb size. Otherwise the
1216 existing "conversion via a text string export" trick is still used.
1217 [Paul Sheer <paulsheer@gmail.com>]
1219 *) Zlib compression BIO. This is a filter BIO which compressed and
1220 uncompresses any data passed through it.
1223 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1224 RFC3394 compatible AES key wrapping.
1227 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1228 sets string data without copying. X509_ALGOR_set0() and
1229 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1230 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1231 from an X509_ATTRIBUTE structure optionally checking it occurs only
1232 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1236 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1237 to get the expected BN_FLG_CONSTTIME behavior.
1238 [Bodo Moeller (Google)]
1242 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1243 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1244 - added some more tests to do_tests.pl
1245 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1246 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1247 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1248 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1249 - various changes to netware.pl to enable gcc-cross builds on Win32
1251 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1252 - various changes to fix missing prototype warnings
1253 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1254 - added AES, WHIRLPOOL and CPUID assembler code to build files
1255 - added missing AES assembler make rules to mk1mf.pl
1256 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1257 [Guenter Knauf <eflash@gmx.net>]
1259 *) Implement certificate status request TLS extension defined in RFC3546.
1260 A client can set the appropriate parameters and receive the encoded
1261 OCSP response via a callback. A server can query the supplied parameters
1262 and set the encoded OCSP response in the callback. Add simplified examples
1263 to s_client and s_server.
1266 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1268 *) Fix various bugs:
1269 + Binary incompatibility of ssl_ctx_st structure
1270 + DTLS interoperation with non-compliant servers
1271 + Don't call get_session_cb() without proposed session
1272 + Fix ia64 assembler code
1273 [Andy Polyakov, Steve Henson]
1275 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1277 *) DTLS Handshake overhaul. There were longstanding issues with
1278 OpenSSL DTLS implementation, which were making it impossible for
1279 RFC 4347 compliant client to communicate with OpenSSL server.
1280 Unfortunately just fixing these incompatibilities would "cut off"
1281 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1282 server keeps tolerating non RFC compliant syntax. The opposite is
1283 not true, 0.9.8f client can not communicate with earlier server.
1284 This update even addresses CVE-2007-4995.
1287 *) Changes to avoid need for function casts in OpenSSL: some compilers
1288 (gcc 4.2 and later) reject their use.
1289 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1292 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1293 RFC4507bis. The encrypted ticket format is an encrypted encoded
1294 SSL_SESSION structure, that way new session features are automatically
1297 If a client application caches session in an SSL_SESSION structure
1298 support is transparent because tickets are now stored in the encoded
1301 The SSL_CTX structure automatically generates keys for ticket
1302 protection in servers so again support should be possible
1303 with no application modification.
1305 If a client or server wishes to disable RFC4507 support then the option
1306 SSL_OP_NO_TICKET can be set.
1308 Add a TLS extension debugging callback to allow the contents of any client
1309 or server extensions to be examined.
1311 This work was sponsored by Google.
1314 *) Add initial support for TLS extensions, specifically for the server_name
1315 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1316 have new members for a host name. The SSL data structure has an
1317 additional member SSL_CTX *initial_ctx so that new sessions can be
1318 stored in that context to allow for session resumption, even after the
1319 SSL has been switched to a new SSL_CTX in reaction to a client's
1320 server_name extension.
1322 New functions (subject to change):
1324 SSL_get_servername()
1325 SSL_get_servername_type()
1328 New CTRL codes and macros (subject to change):
1330 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1331 - SSL_CTX_set_tlsext_servername_callback()
1332 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1333 - SSL_CTX_set_tlsext_servername_arg()
1334 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1336 openssl s_client has a new '-servername ...' option.
1338 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1339 '-key2 ...', '-servername_fatal' (subject to change). This allows
1340 testing the HostName extension for a specific single host name ('-cert'
1341 and '-key' remain fallbacks for handshakes without HostName
1342 negotiation). If the unrecogninzed_name alert has to be sent, this by
1343 default is a warning; it becomes fatal with the '-servername_fatal'
1346 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1348 *) Add AES and SSE2 assembly language support to VC++ build.
1351 *) Mitigate attack on final subtraction in Montgomery reduction.
1354 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1355 (which previously caused an internal error).
1358 *) Squeeze another 10% out of IGE mode when in != out.
1361 *) AES IGE mode speedup.
1362 [Dean Gaudet (Google)]
1364 *) Add the Korean symmetric 128-bit cipher SEED (see
1365 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1366 add SEED ciphersuites from RFC 4162:
1368 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1369 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1370 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1371 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1373 To minimize changes between patchlevels in the OpenSSL 0.9.8
1374 series, SEED remains excluded from compilation unless OpenSSL
1375 is configured with 'enable-seed'.
1376 [KISA, Bodo Moeller]
1378 *) Mitigate branch prediction attacks, which can be practical if a
1379 single processor is shared, allowing a spy process to extract
1380 information. For detailed background information, see
1381 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1382 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1383 and Necessary Software Countermeasures"). The core of the change
1384 are new versions BN_div_no_branch() and
1385 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1386 respectively, which are slower, but avoid the security-relevant
1387 conditional branches. These are automatically called by BN_div()
1388 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1389 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1390 remove a conditional branch.
1392 BN_FLG_CONSTTIME is the new name for the previous
1393 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1394 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1395 in the exponent causes BN_mod_exp_mont() to use the alternative
1396 implementation in BN_mod_exp_mont_consttime().) The old name
1397 remains as a deprecated alias.
1399 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1400 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1401 constant-time implementations for more than just exponentiation.
1402 Here too the old name is kept as a deprecated alias.
1404 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1405 the BN_BLINDING structure gets an independent copy of the
1406 modulus. This means that the previous "BIGNUM *m" argument to
1407 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1408 essentially becomes "const BIGNUM *m", although we can't actually
1409 change this in the header file before 0.9.9. It allows
1410 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1411 enable BN_FLG_CONSTTIME.
1413 [Matthew D Wood (Intel Corp)]
1415 *) In the SSL/TLS server implementation, be strict about session ID
1416 context matching (which matters if an application uses a single
1417 external cache for different purposes). Previously,
1418 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1419 set. This did ensure strict client verification, but meant that,
1420 with applications using a single external cache for quite
1421 different requirements, clients could circumvent ciphersuite
1422 restrictions for a given session ID context by starting a session
1423 in a different context.
1426 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1427 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1428 authentication-only ciphersuites.
1431 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1432 not complete and could lead to a possible single byte overflow
1433 (CVE-2007-5135) [Ben Laurie]
1435 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1437 *) Since AES128 and AES256 (and similarly Camellia128 and
1438 Camellia256) share a single mask bit in the logic of
1439 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1440 kludge to work properly if AES128 is available and AES256 isn't
1441 (or if Camellia128 is available and Camellia256 isn't).
1444 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1445 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1446 When a point or a seed is encoded in a BIT STRING, we need to
1447 prevent the removal of trailing zero bits to get the proper DER
1448 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1449 of a NamedBitList, for which trailing 0 bits need to be removed.)
1452 *) Have SSL/TLS server implementation tolerate "mismatched" record
1453 protocol version while receiving ClientHello even if the
1454 ClientHello is fragmented. (The server can't insist on the
1455 particular protocol version it has chosen before the ServerHello
1456 message has informed the client about his choice.)
1459 *) Add RFC 3779 support.
1460 [Rob Austein for ARIN, Ben Laurie]
1462 *) Load error codes if they are not already present instead of using a
1463 static variable. This allows them to be cleanly unloaded and reloaded.
1464 Improve header file function name parsing.
1467 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1468 or CAPABILITY handshake as required by RFCs.
1471 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1473 *) Introduce limits to prevent malicious keys being able to
1474 cause a denial of service. (CVE-2006-2940)
1475 [Steve Henson, Bodo Moeller]
1477 *) Fix ASN.1 parsing of certain invalid structures that can result
1478 in a denial of service. (CVE-2006-2937) [Steve Henson]
1480 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1481 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1483 *) Fix SSL client code which could crash if connecting to a
1484 malicious SSLv2 server. (CVE-2006-4343)
1485 [Tavis Ormandy and Will Drewry, Google Security Team]
1487 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1488 match only those. Before that, "AES256-SHA" would be interpreted
1489 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1490 the same strength classification in 0.9.7h) as we currently only
1491 have a single AES bit in the ciphersuite description bitmap.
1492 That change, however, also applied to ciphersuite strings such as
1493 "RC4-MD5" that intentionally matched multiple ciphersuites --
1494 namely, SSL 2.0 ciphersuites in addition to the more common ones
1495 from SSL 3.0/TLS 1.0.
1497 So we change the selection algorithm again: Naming an explicit
1498 ciphersuite selects this one ciphersuite, and any other similar
1499 ciphersuite (same bitmap) from *other* protocol versions.
1500 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1501 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1503 Since SSL 2.0 does not have any ciphersuites for which the
1504 128/256 bit distinction would be relevant, this works for now.
1505 The proper fix will be to use different bits for AES128 and
1506 AES256, which would have avoided the problems from the beginning;
1507 however, bits are scarce, so we can only do this in a new release
1508 (not just a patchlevel) when we can change the SSL_CIPHER
1509 definition to split the single 'unsigned long mask' bitmap into
1510 multiple values to extend the available space.
1514 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1516 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1517 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1519 *) Add AES IGE and biIGE modes.
1522 *) Change the Unix randomness entropy gathering to use poll() when
1523 possible instead of select(), since the latter has some
1524 undesirable limitations.
1525 [Darryl Miles via Richard Levitte and Bodo Moeller]
1527 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1528 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1529 cannot be implicitly activated as part of, e.g., the "AES" alias.
1530 However, please upgrade to OpenSSL 0.9.9[-dev] for
1531 non-experimental use of the ECC ciphersuites to get TLS extension
1532 support, which is required for curve and point format negotiation
1533 to avoid potential handshake problems.
1536 *) Disable rogue ciphersuites:
1538 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1539 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1540 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1542 The latter two were purportedly from
1543 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1546 Also deactivate the remaining ciphersuites from
1547 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1548 unofficial, and the ID has long expired.
1551 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1552 dual-core machines) and other potential thread-safety issues.
1555 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1556 versions), which is now available for royalty-free use
1557 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1558 Also, add Camellia TLS ciphersuites from RFC 4132.
1560 To minimize changes between patchlevels in the OpenSSL 0.9.8
1561 series, Camellia remains excluded from compilation unless OpenSSL
1562 is configured with 'enable-camellia'.
1565 *) Disable the padding bug check when compression is in use. The padding
1566 bug check assumes the first packet is of even length, this is not
1567 necessarily true if compresssion is enabled and can result in false
1568 positives causing handshake failure. The actual bug test is ancient
1569 code so it is hoped that implementations will either have fixed it by
1570 now or any which still have the bug do not support compression.
1573 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1575 *) When applying a cipher rule check to see if string match is an explicit
1576 cipher suite and only match that one cipher suite if it is.
1579 *) Link in manifests for VC++ if needed.
1580 [Austin Ziegler <halostatue@gmail.com>]
1582 *) Update support for ECC-based TLS ciphersuites according to
1583 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1584 TLS extensions, which are supported starting with the 0.9.9
1585 branch, not in the OpenSSL 0.9.8 branch).
1588 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1589 opaque EVP_CIPHER_CTX handling.
1592 *) Fixes and enhancements to zlib compression code. We now only use
1593 "zlib1.dll" and use the default __cdecl calling convention on Win32
1594 to conform with the standards mentioned here:
1595 http://www.zlib.net/DLL_FAQ.txt
1596 Static zlib linking now works on Windows and the new --with-zlib-include
1597 --with-zlib-lib options to Configure can be used to supply the location
1598 of the headers and library. Gracefully handle case where zlib library
1602 *) Several fixes and enhancements to the OID generation code. The old code
1603 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1604 handle numbers larger than ULONG_MAX, truncated printing and had a
1605 non standard OBJ_obj2txt() behaviour.
1608 *) Add support for building of engines under engine/ as shared libraries
1609 under VC++ build system.
1612 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1613 Hopefully, we will not see any false combination of paths any more.
1616 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1618 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1619 (part of SSL_OP_ALL). This option used to disable the
1620 countermeasure against man-in-the-middle protocol-version
1621 rollback in the SSL 2.0 server implementation, which is a bad
1622 idea. (CVE-2005-2969)
1624 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1625 for Information Security, National Institute of Advanced Industrial
1626 Science and Technology [AIST], Japan)]
1628 *) Add two function to clear and return the verify parameter flags.
1631 *) Keep cipherlists sorted in the source instead of sorting them at
1632 runtime, thus removing the need for a lock.
1635 *) Avoid some small subgroup attacks in Diffie-Hellman.
1636 [Nick Mathewson and Ben Laurie]
1638 *) Add functions for well-known primes.
1641 *) Extended Windows CE support.
1642 [Satoshi Nakamura and Andy Polyakov]
1644 *) Initialize SSL_METHOD structures at compile time instead of during
1645 runtime, thus removing the need for a lock.
1648 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1649 attempting to decrypt each encrypted key in turn. Add support to
1653 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1655 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1658 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1661 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1662 key into the same file any more.
1665 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1668 *) Add -utf8 command line and config file option to 'ca'.
1669 [Stefan <stf@udoma.org]
1671 *) Removed the macro des_crypt(), as it seems to conflict with some
1672 libraries. Use DES_crypt().
1675 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1676 involves renaming the source and generated shared-libs for
1677 both. The engines will accept the corrected or legacy ids
1678 ('ncipher' and '4758_cca' respectively) when binding. NB,
1679 this only applies when building 'shared'.
1680 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1682 *) Add attribute functions to EVP_PKEY structure. Modify
1683 PKCS12_create() to recognize a CSP name attribute and
1684 use it. Make -CSP option work again in pkcs12 utility.
1687 *) Add new functionality to the bn blinding code:
1688 - automatic re-creation of the BN_BLINDING parameters after
1689 a fixed number of uses (currently 32)
1690 - add new function for parameter creation
1691 - introduce flags to control the update behaviour of the
1692 BN_BLINDING parameters
1693 - hide BN_BLINDING structure
1694 Add a second BN_BLINDING slot to the RSA structure to improve
1695 performance when a single RSA object is shared among several
1699 *) Add support for DTLS.
1700 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1702 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1703 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1706 *) Remove buggy and incompletet DH cert support from
1707 ssl/ssl_rsa.c and ssl/s3_both.c
1710 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1711 the apps/openssl applications.
1714 *) Compile clean with "-Wall -Wmissing-prototypes
1715 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1716 DEBUG_SAFESTACK must also be set.
1719 *) Change ./Configure so that certain algorithms can be disabled by default.
1720 The new counterpiece to "no-xxx" is "enable-xxx".
1722 The patented RC5 and MDC2 algorithms will now be disabled unless
1723 "enable-rc5" and "enable-mdc2", respectively, are specified.
1725 (IDEA remains enabled despite being patented. This is because IDEA
1726 is frequently required for interoperability, and there is no license
1727 fee for non-commercial use. As before, "no-idea" can be used to
1728 avoid this algorithm.)
1732 *) Add processing of proxy certificates (see RFC 3820). This work was
1733 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1734 EGEE (Enabling Grids for E-science in Europe).
1737 *) RC4 performance overhaul on modern architectures/implementations, such
1738 as Intel P4, IA-64 and AMD64.
1741 *) New utility extract-section.pl. This can be used specify an alternative
1742 section number in a pod file instead of having to treat each file as
1743 a separate case in Makefile. This can be done by adding two lines to the
1746 =for comment openssl_section:XXX
1748 The blank line is mandatory.
1752 *) New arguments -certform, -keyform and -pass for s_client and s_server
1753 to allow alternative format key and certificate files and passphrase
1757 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1758 update associated structures and add various utility functions.
1760 Add new policy related verify parameters, include policy checking in
1761 standard verify code. Enhance 'smime' application with extra parameters
1762 to support policy checking and print out.
1765 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1766 Nehemiah processors. These extensions support AES encryption in hardware
1767 as well as RNG (though RNG support is currently disabled).
1768 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1770 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1773 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1774 [Andy Polyakov and a number of other people]
1776 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1777 implementation contributed by IBM.
1778 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1780 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1781 exponent rather than 'unsigned long'. There is a corresponding change to
1782 the new 'rsa_keygen' element of the RSA_METHOD structure.
1783 [Jelte Jansen, Geoff Thorpe]
1785 *) Functionality for creating the initial serial number file is now
1786 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1788 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1789 number file to 1, which is bound to cause problems. To avoid
1790 the problems while respecting compatibility between different 0.9.7
1791 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1792 CA.pl for serial number initialization. With the new release 0.9.8,
1793 we can fix the problem directly in the 'ca' utility.)
1796 *) Reduced header interdepencies by declaring more opaque objects in
1797 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1798 give fewer recursive includes, which could break lazy source code - so
1799 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1800 developers should define this symbol when building and using openssl to
1801 ensure they track the recommended behaviour, interfaces, [etc], but
1802 backwards-compatible behaviour prevails when this isn't defined.
1805 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1808 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1809 This will generate a random key of the appropriate length based on the
1810 cipher context. The EVP_CIPHER can provide its own random key generation
1811 routine to support keys of a specific form. This is used in the des and
1812 3des routines to generate a key of the correct parity. Update S/MIME
1813 code to use new functions and hence generate correct parity DES keys.
1814 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1815 valid (weak or incorrect parity).
1818 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1819 as looking them up. This is useful when the verified structure may contain
1820 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1821 present unless the new PKCS7_NO_CRL flag is asserted.
1824 *) Extend ASN1 oid configuration module. It now additionally accepts the
1827 shortName = some long name, 1.2.3.4
1830 *) Reimplemented the BN_CTX implementation. There is now no more static
1831 limitation on the number of variables it can handle nor the depth of the
1832 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1833 information can now expand as required, and rather than having a single
1834 static array of bignums, BN_CTX now uses a linked-list of such arrays
1835 allowing it to expand on demand whilst maintaining the usefulness of
1836 BN_CTX's "bundling".
1839 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1840 to allow all RSA operations to function using a single BN_CTX.
1843 *) Preliminary support for certificate policy evaluation and checking. This
1844 is initially intended to pass the tests outlined in "Conformance Testing
1845 of Relying Party Client Certificate Path Processing Logic" v1.07.
1848 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1849 remained unused and not that useful. A variety of other little bignum
1850 tweaks and fixes have also been made continuing on from the audit (see
1854 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1855 associated ASN1, EVP and SSL functions and old ASN1 macros.
1858 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1859 and this should never fail. So the return value from the use of
1860 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1861 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1864 *) BN_CTX_get() should return zero-valued bignums, providing the same
1865 initialised value as BN_new().
1866 [Geoff Thorpe, suggested by Ulf Möller]
1868 *) Support for inhibitAnyPolicy certificate extension.
1871 *) An audit of the BIGNUM code is underway, for which debugging code is
1872 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1873 is considered valid when processing BIGNUMs, and causes execution to
1874 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1875 further steps are taken to deliberately pollute unused data in BIGNUM
1876 structures to try and expose faulty code further on. For now, openssl will
1877 (in its default mode of operation) continue to tolerate the inconsistent
1878 forms that it has tolerated in the past, but authors and packagers should
1879 consider trying openssl and their own applications when compiled with
1880 these debugging symbols defined. It will help highlight potential bugs in
1881 their own code, and will improve the test coverage for OpenSSL itself. At
1882 some point, these tighter rules will become openssl's default to improve
1883 maintainability, though the assert()s and other overheads will remain only
1884 in debugging configurations. See bn.h for more details.
1885 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1887 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1888 that can only be obtained through BN_CTX_new() (which implicitly
1889 initialises it). The presence of this function only made it possible
1890 to overwrite an existing structure (and cause memory leaks).
1893 *) Because of the callback-based approach for implementing LHASH as a
1894 template type, lh_insert() adds opaque objects to hash-tables and
1895 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1896 to clean up those corresponding objects before destroying the hash table
1897 (and losing the object pointers). So some over-zealous constifications in
1898 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1899 objects as "const" and the lh_doall[_arg] callback wrappers are not
1900 prototyped to have "const" restrictions on the object pointers they are
1901 given (and so aren't required to cast them away any more).
1904 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1905 (speed) prefers to use its own implementation. The two implementations
1906 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1907 its object type properly exposed (MS_TM) instead of casting to/from "char
1908 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1909 aren't necessarily the greatest nomenclatures - but this is what was used
1910 internally to the implementation so I've used that for now.
1913 *) Ensure that deprecated functions do not get compiled when
1914 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1915 the self-tests were still using deprecated key-generation functions so
1916 these have been updated also.
1919 *) Reorganise PKCS#7 code to separate the digest location functionality
1920 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1921 New function PKCS7_set_digest() to set the digest type for PKCS#7
1922 digestedData type. Add additional code to correctly generate the
1923 digestedData type and add support for this type in PKCS7 initialization
1927 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1928 structure of type "other".
1931 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1932 sure the loop does correctly stop and breaking ("division by zero")
1933 modulus operations are not performed. The (pre-generated) prime
1934 table crypto/bn/bn_prime.h was already correct, but it could not be
1935 re-generated on some platforms because of the "division by zero"
1936 situation in the script.
1937 [Ralf S. Engelschall]
1939 *) Update support for ECC-based TLS ciphersuites according to
1940 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1941 SHA-1 now is only used for "small" curves (where the
1942 representation of a field element takes up to 24 bytes); for
1943 larger curves, the field element resulting from ECDH is directly
1944 used as premaster secret.
1945 [Douglas Stebila (Sun Microsystems Laboratories)]
1947 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1948 curve secp160r1 to the tests.
1949 [Douglas Stebila (Sun Microsystems Laboratories)]
1951 *) Add the possibility to load symbols globally with DSO.
1952 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1954 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1955 control of the error stack.
1958 *) Add support for STORE in ENGINE.
1961 *) Add the STORE type. The intention is to provide a common interface
1962 to certificate and key stores, be they simple file-based stores, or
1963 HSM-type store, or LDAP stores, or...
1964 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1967 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1968 pass a list of arguments to any function as well as provide a way
1969 for a function to pass data back to the caller.
1972 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1973 works like BUF_strdup() but can be used to duplicate a portion of
1974 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1978 *) Add the function sk_find_ex() which works like sk_find(), but will
1979 return an index to an element even if an exact match couldn't be
1980 found. The index is guaranteed to point at the element where the
1981 searched-for key would be inserted to preserve sorting order.
1984 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1985 takes an extra flags argument for optional functionality. Currently,
1986 the following flags are defined:
1988 OBJ_BSEARCH_VALUE_ON_NOMATCH
1989 This one gets OBJ_bsearch_ex() to return a pointer to the first
1990 element where the comparing function returns a negative or zero
1993 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1994 This one gets OBJ_bsearch_ex() to return a pointer to the first
1995 element where the comparing function returns zero. This is useful
1996 if there are more than one element where the comparing function
2000 *) Make it possible to create self-signed certificates with 'openssl ca'
2001 in such a way that the self-signed certificate becomes part of the
2002 CA database and uses the same mechanisms for serial number generation
2003 as all other certificate signing. The new flag '-selfsign' enables
2004 this functionality. Adapt CA.sh and CA.pl.in.
2007 *) Add functionality to check the public key of a certificate request
2008 against a given private. This is useful to check that a certificate
2009 request can be signed by that key (self-signing).
2012 *) Make it possible to have multiple active certificates with the same
2013 subject in the CA index file. This is done only if the keyword
2014 'unique_subject' is set to 'no' in the main CA section (default
2015 if 'CA_default') of the configuration file. The value is saved
2016 with the database itself in a separate index attribute file,
2017 named like the index file with '.attr' appended to the name.
2020 *) Generate muti valued AVAs using '+' notation in config files for
2024 *) Support for nameConstraints certificate extension.
2027 *) Support for policyConstraints certificate extension.
2030 *) Support for policyMappings certificate extension.
2033 *) Make sure the default DSA_METHOD implementation only uses its
2034 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2035 and change its own handlers to be NULL so as to remove unnecessary
2036 indirection. This lets alternative implementations fallback to the
2037 default implementation more easily.
2040 *) Support for directoryName in GeneralName related extensions
2044 *) Make it possible to link applications using Makefile.shared.
2045 Make that possible even when linking against static libraries!
2048 *) Support for single pass processing for S/MIME signing. This now
2049 means that S/MIME signing can be done from a pipe, in addition
2050 cleartext signing (multipart/signed type) is effectively streaming
2051 and the signed data does not need to be all held in memory.
2053 This is done with a new flag PKCS7_STREAM. When this flag is set
2054 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2055 is done after the data is output (and digests calculated) in
2056 SMIME_write_PKCS7().
2059 *) Add full support for -rpath/-R, both in shared libraries and
2060 applications, at least on the platforms where it's known how
2064 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2065 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2066 will now compute a table of multiples of the generator that
2067 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2068 faster (notably in the case of a single point multiplication,
2069 scalar * generator).
2070 [Nils Larsch, Bodo Moeller]
2072 *) IPv6 support for certificate extensions. The various extensions
2073 which use the IP:a.b.c.d can now take IPv6 addresses using the
2074 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2078 *) Added an ENGINE that implements RSA by performing private key
2079 exponentiations with the GMP library. The conversions to and from
2080 GMP's mpz_t format aren't optimised nor are any montgomery forms
2081 cached, and on x86 it appears OpenSSL's own performance has caught up.
2082 However there are likely to be other architectures where GMP could
2083 provide a boost. This ENGINE is not built in by default, but it can be
2084 specified at Configure time and should be accompanied by the necessary
2085 linker additions, eg;
2086 ./config -DOPENSSL_USE_GMP -lgmp
2089 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2090 testing availability of engines with "-t" - the old behaviour is
2091 produced by increasing the feature's verbosity with "-tt".
2094 *) ECDSA routines: under certain error conditions uninitialized BN objects
2095 could be freed. Solution: make sure initialization is performed early
2096 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2100 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2101 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2102 software implementations. For DSA and DH, parameter generation can
2103 also be overriden by providing the appropriate method callbacks.
2106 *) Change the "progress" mechanism used in key-generation and
2107 primality testing to functions that take a new BN_GENCB pointer in
2108 place of callback/argument pairs. The new API functions have "_ex"
2109 postfixes and the older functions are reimplemented as wrappers for
2110 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2111 declarations of the old functions to help (graceful) attempts to
2112 migrate to the new functions. Also, the new key-generation API
2113 functions operate on a caller-supplied key-structure and return
2114 success/failure rather than returning a key or NULL - this is to
2115 help make "keygen" another member function of RSA_METHOD etc.
2117 Example for using the new callback interface:
2119 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2123 BN_GENCB_set(&my_cb, my_callback, my_arg);
2125 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2126 /* For the meaning of a, b in calls to my_callback(), see the
2127 * documentation of the function that calls the callback.
2128 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2129 * my_callback should return 1 if it wants BN_is_prime_ex()
2130 * to continue, or 0 to stop.
2135 *) Change the ZLIB compression method to be stateful, and make it
2136 available to TLS with the number defined in
2137 draft-ietf-tls-compression-04.txt.
2140 *) Add the ASN.1 structures and functions for CertificatePair, which
2141 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2143 CertificatePair ::= SEQUENCE {
2144 forward [0] Certificate OPTIONAL,
2145 reverse [1] Certificate OPTIONAL,
2146 -- at least one of the pair shall be present -- }
2148 Also implement the PEM functions to read and write certificate
2149 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2151 This needed to be defined, mostly for the sake of the LDAP
2152 attribute crossCertificatePair, but may prove useful elsewhere as
2156 *) Make it possible to inhibit symlinking of shared libraries in
2157 Makefile.shared, for Cygwin's sake.
2160 *) Extend the BIGNUM API by creating a function
2161 void BN_set_negative(BIGNUM *a, int neg);
2162 and a macro that behave like
2163 int BN_is_negative(const BIGNUM *a);
2165 to avoid the need to access 'a->neg' directly in applications.
2168 *) Implement fast modular reduction for pseudo-Mersenne primes
2169 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2170 EC_GROUP_new_curve_GFp() will now automatically use this
2172 [Nils Larsch <nla@trustcenter.de>]
2174 *) Add new lock type (CRYPTO_LOCK_BN).
2177 *) Change the ENGINE framework to automatically load engines
2178 dynamically from specific directories unless they could be
2179 found to already be built in or loaded. Move all the
2180 current engines except for the cryptodev one to a new
2182 The engines in engines/ are built as shared libraries if
2183 the "shared" options was given to ./Configure or ./config.
2184 Otherwise, they are inserted in libcrypto.a.
2185 /usr/local/ssl/engines is the default directory for dynamic
2186 engines, but that can be overriden at configure time through
2187 the usual use of --prefix and/or --openssldir, and at run
2188 time with the environment variable OPENSSL_ENGINES.
2189 [Geoff Thorpe and Richard Levitte]
2191 *) Add Makefile.shared, a helper makefile to build shared
2192 libraries. Addapt Makefile.org.
2195 *) Add version info to Win32 DLLs.
2196 [Peter 'Luna' Runestig" <peter@runestig.com>]
2198 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2199 can be added using this API to created arbitrary PKCS#12
2200 files while avoiding the low level API.
2202 New options to PKCS12_create(), key or cert can be NULL and
2203 will then be omitted from the output file. The encryption
2204 algorithm NIDs can be set to -1 for no encryption, the mac
2205 iteration count can be set to 0 to omit the mac.
2207 Enhance pkcs12 utility by making the -nokeys and -nocerts
2208 options work when creating a PKCS#12 file. New option -nomac
2209 to omit the mac, NONE can be set for an encryption algorithm.
2210 New code is modified to use the enhanced PKCS12_create()
2211 instead of the low level API.
2214 *) Extend ASN1 encoder to support indefinite length constructed
2215 encoding. This can output sequences tags and octet strings in
2216 this form. Modify pk7_asn1.c to support indefinite length
2217 encoding. This is experimental and needs additional code to
2218 be useful, such as an ASN1 bio and some enhanced streaming
2221 Extend template encode functionality so that tagging is passed
2222 down to the template encoder.
2225 *) Let 'openssl req' fail if an argument to '-newkey' is not
2226 recognized instead of using RSA as a default.
2229 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2230 As these are not official, they are not included in "ALL";
2231 the "ECCdraft" ciphersuite group alias can be used to select them.
2232 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2234 *) Add ECDH engine support.
2235 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2237 *) Add ECDH in new directory crypto/ecdh/.
2238 [Douglas Stebila (Sun Microsystems Laboratories)]
2240 *) Let BN_rand_range() abort with an error after 100 iterations
2241 without success (which indicates a broken PRNG).
2244 *) Change BN_mod_sqrt() so that it verifies that the input value
2245 is really the square of the return value. (Previously,
2246 BN_mod_sqrt would show GIGO behaviour.)
2249 *) Add named elliptic curves over binary fields from X9.62, SECG,
2250 and WAP/WTLS; add OIDs that were still missing.
2252 [Sheueling Chang Shantz and Douglas Stebila
2253 (Sun Microsystems Laboratories)]
2255 *) Extend the EC library for elliptic curves over binary fields
2256 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2259 EC_GF2m_simple_method
2263 EC_GROUP_new_curve_GF2m
2264 EC_GROUP_set_curve_GF2m
2265 EC_GROUP_get_curve_GF2m
2266 EC_POINT_set_affine_coordinates_GF2m
2267 EC_POINT_get_affine_coordinates_GF2m
2268 EC_POINT_set_compressed_coordinates_GF2m
2270 Point compression for binary fields is disabled by default for
2271 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2274 As binary polynomials are represented as BIGNUMs, various members
2275 of the EC_GROUP and EC_POINT data structures can be shared
2276 between the implementations for prime fields and binary fields;
2277 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2278 are essentially identical to their ..._GFp counterparts.
2279 (For simplicity, the '..._GFp' prefix has been dropped from
2280 various internal method names.)
2282 An internal 'field_div' method (similar to 'field_mul' and
2283 'field_sqr') has been added; this is used only for binary fields.
2285 [Sheueling Chang Shantz and Douglas Stebila
2286 (Sun Microsystems Laboratories)]
2288 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2289 through methods ('mul', 'precompute_mult').
2291 The generic implementations (now internally called 'ec_wNAF_mul'
2292 and 'ec_wNAF_precomputed_mult') remain the default if these
2293 methods are undefined.
2295 [Sheueling Chang Shantz and Douglas Stebila
2296 (Sun Microsystems Laboratories)]
2298 *) New function EC_GROUP_get_degree, which is defined through
2299 EC_METHOD. For curves over prime fields, this returns the bit
2300 length of the modulus.
2302 [Sheueling Chang Shantz and Douglas Stebila
2303 (Sun Microsystems Laboratories)]
2305 *) New functions EC_GROUP_dup, EC_POINT_dup.
2306 (These simply call ..._new and ..._copy).
2308 [Sheueling Chang Shantz and Douglas Stebila
2309 (Sun Microsystems Laboratories)]
2311 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2312 Polynomials are represented as BIGNUMs (where the sign bit is not
2313 used) in the following functions [macros]:
2316 BN_GF2m_sub [= BN_GF2m_add]
2317 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2318 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2319 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2321 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2322 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2323 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2324 BN_GF2m_cmp [= BN_ucmp]
2326 (Note that only the 'mod' functions are actually for fields GF(2^m).
2327 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2329 For some functions, an the irreducible polynomial defining a
2330 field can be given as an 'unsigned int[]' with strictly
2331 decreasing elements giving the indices of those bits that are set;
2332 i.e., p[] represents the polynomial
2333 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2335 p[0] > p[1] > ... > p[k] = 0.
2336 This applies to the following functions:
2341 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2342 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2344 BN_GF2m_mod_sqrt_arr
2345 BN_GF2m_mod_solve_quad_arr
2349 Conversion can be performed by the following functions:
2354 bntest.c has additional tests for binary polynomial arithmetic.
2356 Two implementations for BN_GF2m_mod_div() are available.
2357 The default algorithm simply uses BN_GF2m_mod_inv() and
2358 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2359 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2360 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2362 [Sheueling Chang Shantz and Douglas Stebila
2363 (Sun Microsystems Laboratories)]
2365 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2366 functionality is disabled at compile-time.
2367 [Douglas Stebila <douglas.stebila@sun.com>]
2369 *) Change default behaviour of 'openssl asn1parse' so that more
2370 information is visible when viewing, e.g., a certificate:
2372 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2373 mode the content of non-printable OCTET STRINGs is output in a
2374 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2375 avoid the appearance of a printable string.
2376 [Nils Larsch <nla@trustcenter.de>]
2378 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2380 EC_GROUP_set_asn1_flag()
2381 EC_GROUP_get_asn1_flag()
2382 EC_GROUP_set_point_conversion_form()
2383 EC_GROUP_get_point_conversion_form()
2384 These control ASN1 encoding details:
2385 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2386 has been set to OPENSSL_EC_NAMED_CURVE.
2387 - Points are encoded in uncompressed form by default; options for
2388 asn1_for are as for point2oct, namely
2389 POINT_CONVERSION_COMPRESSED
2390 POINT_CONVERSION_UNCOMPRESSED
2391 POINT_CONVERSION_HYBRID
2393 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2396 EC_GROUP_get0_seed()
2397 EC_GROUP_get_seed_len()
2398 This is used only for ASN1 purposes (so far).
2399 [Nils Larsch <nla@trustcenter.de>]
2401 *) Add 'field_type' member to EC_METHOD, which holds the NID
2402 of the appropriate field type OID. The new function
2403 EC_METHOD_get_field_type() returns this value.
2404 [Nils Larsch <nla@trustcenter.de>]
2409 EC_POINT_point2hex()
2410 EC_POINT_hex2point()
2411 providing useful interfaces to EC_POINT_point2oct() and
2412 EC_POINT_oct2point().
2413 [Nils Larsch <nla@trustcenter.de>]
2415 *) Change internals of the EC library so that the functions
2416 EC_GROUP_set_generator()
2417 EC_GROUP_get_generator()
2418 EC_GROUP_get_order()
2419 EC_GROUP_get_cofactor()
2420 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2421 to methods, which would lead to unnecessary code duplication when
2422 adding different types of curves.
2423 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2425 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2426 arithmetic, and such that modified wNAFs are generated
2427 (which avoid length expansion in many cases).
2430 *) Add a function EC_GROUP_check_discriminant() (defined via
2431 EC_METHOD) that verifies that the curve discriminant is non-zero.
2433 Add a function EC_GROUP_check() that makes some sanity tests
2434 on a EC_GROUP, its generator and order. This includes
2435 EC_GROUP_check_discriminant().
2436 [Nils Larsch <nla@trustcenter.de>]
2438 *) Add ECDSA in new directory crypto/ecdsa/.
2440 Add applications 'openssl ecparam' and 'openssl ecdsa'
2441 (these are based on 'openssl dsaparam' and 'openssl dsa').
2443 ECDSA support is also included in various other files across the
2444 library. Most notably,
2445 - 'openssl req' now has a '-newkey ecdsa:file' option;
2446 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2447 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2448 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2449 them suitable for ECDSA where domain parameters must be
2450 extracted before the specific public key;
2451 - ECDSA engine support has been added.
2452 [Nils Larsch <nla@trustcenter.de>]
2454 *) Include some named elliptic curves, and add OIDs from X9.62,
2455 SECG, and WAP/WTLS. Each curve can be obtained from the new
2457 EC_GROUP_new_by_curve_name(),
2458 and the list of available named curves can be obtained with
2459 EC_get_builtin_curves().
2460 Also add a 'curve_name' member to EC_GROUP objects, which can be
2462 EC_GROUP_set_curve_name()
2463 EC_GROUP_get_curve_name()
2464 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2466 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2467 was actually never needed) and in BN_mul(). The removal in BN_mul()
2468 required a small change in bn_mul_part_recursive() and the addition
2469 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2470 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2471 bn_sub_words() and bn_add_words() except they take arrays with
2475 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2477 *) Cleanse PEM buffers before freeing them since they may contain
2479 [Benjamin Bennett <ben@psc.edu>]
2481 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2482 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2483 authentication-only ciphersuites.
2486 *) Since AES128 and AES256 share a single mask bit in the logic of
2487 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2488 kludge to work properly if AES128 is available and AES256 isn't.
2491 *) Expand security boundary to match 1.1.1 module.
2494 *) Remove redundant features: hash file source, editing of test vectors
2495 modify fipsld to use external fips_premain.c signature.
2498 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2499 run algorithm test programs.
2502 *) Make algorithm test programs more tolerant of whitespace.
2505 *) Have SSL/TLS server implementation tolerate "mismatched" record
2506 protocol version while receiving ClientHello even if the
2507 ClientHello is fragmented. (The server can't insist on the
2508 particular protocol version it has chosen before the ServerHello
2509 message has informed the client about his choice.)
2512 *) Load error codes if they are not already present instead of using a
2513 static variable. This allows them to be cleanly unloaded and reloaded.
2516 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2518 *) Introduce limits to prevent malicious keys being able to
2519 cause a denial of service. (CVE-2006-2940)
2520 [Steve Henson, Bodo Moeller]
2522 *) Fix ASN.1 parsing of certain invalid structures that can result
2523 in a denial of service. (CVE-2006-2937) [Steve Henson]
2525 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2526 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2528 *) Fix SSL client code which could crash if connecting to a
2529 malicious SSLv2 server. (CVE-2006-4343)
2530 [Tavis Ormandy and Will Drewry, Google Security Team]
2532 *) Change ciphersuite string processing so that an explicit
2533 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2534 will no longer include "AES128-SHA"), and any other similar
2535 ciphersuite (same bitmap) from *other* protocol versions (so that
2536 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2537 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2538 changes from 0.9.8b and 0.9.8d.
2541 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2543 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2544 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2546 *) Change the Unix randomness entropy gathering to use poll() when
2547 possible instead of select(), since the latter has some
2548 undesirable limitations.
2549 [Darryl Miles via Richard Levitte and Bodo Moeller]
2551 *) Disable rogue ciphersuites:
2553 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2554 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2555 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2557 The latter two were purportedly from
2558 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2561 Also deactive the remaining ciphersuites from
2562 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2563 unofficial, and the ID has long expired.
2566 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2567 dual-core machines) and other potential thread-safety issues.
2570 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2572 *) Adapt fipsld and the build system to link against the validated FIPS
2573 module in FIPS mode.
2576 *) Fixes for VC++ 2005 build under Windows.
2579 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2580 from a Windows bash shell such as MSYS. It is autodetected from the
2581 "config" script when run from a VC++ environment. Modify standard VC++
2582 build to use fipscanister.o from the GNU make build.
2585 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2587 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2588 The value now differs depending on if you build for FIPS or not.
2589 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2590 safely run with a non-FIPSed libcrypto, as it may crash because of
2591 the difference induced by this change.
2594 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2596 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2597 (part of SSL_OP_ALL). This option used to disable the
2598 countermeasure against man-in-the-middle protocol-version
2599 rollback in the SSL 2.0 server implementation, which is a bad
2600 idea. (CVE-2005-2969)
2602 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2603 for Information Security, National Institute of Advanced Industrial
2604 Science and Technology [AIST], Japan)]
2606 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2607 mainly for FIPS compliance and not fully integrated at this stage.
2610 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2611 the exponentiation using a fixed-length exponent. (Otherwise,
2612 the information leaked through timing could expose the secret key
2613 after many signatures; cf. Bleichenbacher's attack on DSA with
2617 *) Make a new fixed-window mod_exp implementation the default for
2618 RSA, DSA, and DH private-key operations so that the sequence of
2619 squares and multiplies and the memory access pattern are
2620 independent of the particular secret key. This will mitigate
2621 cache-timing and potential related attacks.
2623 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2624 and this is automatically used by BN_mod_exp_mont() if the new flag
2625 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2626 will use this BN flag for private exponents unless the flag
2627 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2628 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2630 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2632 *) Change the client implementation for SSLv23_method() and
2633 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2634 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2635 (Previously, the SSL 2.0 backwards compatible Client Hello
2636 message format would be used even with SSL_OP_NO_SSLv2.)
2639 *) Add support for smime-type MIME parameter in S/MIME messages which some
2643 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2644 a threadsafe manner. Modify rsa code to use new function and add calls
2645 to dsa and dh code (which had race conditions before).
2648 *) Include the fixed error library code in the C error file definitions
2649 instead of fixing them up at runtime. This keeps the error code
2650 structures constant.
2653 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2655 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2658 *) Fixes for newer kerberos headers. NB: the casts are needed because
2659 the 'length' field is signed on one version and unsigned on another
2660 with no (?) obvious way to tell the difference, without these VC++
2661 complains. Also the "definition" of FAR (blank) is no longer included
2662 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2663 some needed definitions.
2666 *) Undo Cygwin change.
2669 *) Added support for proxy certificates according to RFC 3820.
2670 Because they may be a security thread to unaware applications,
2671 they must be explicitely allowed in run-time. See
2672 docs/HOWTO/proxy_certificates.txt for further information.
2675 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2677 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2678 server and client random values. Previously
2679 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2680 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2682 This change has negligible security impact because:
2684 1. Server and client random values still have 24 bytes of pseudo random
2687 2. Server and client random values are sent in the clear in the initial
2690 3. The master secret is derived using the premaster secret (48 bytes in
2691 size for static RSA ciphersuites) as well as client server and random
2694 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2697 [Stephen Henson, reported by UK NISCC]
2699 *) Use Windows randomness collection on Cygwin.
2702 *) Fix hang in EGD/PRNGD query when communication socket is closed
2703 prematurely by EGD/PRNGD.
2704 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2706 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2709 *) Back-port of selected performance improvements from development
2710 branch, as well as improved support for PowerPC platforms.
2713 *) Add lots of checks for memory allocation failure, error codes to indicate
2714 failure and freeing up memory if a failure occurs.
2715 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2717 *) Add new -passin argument to dgst.
2720 *) Perform some character comparisons of different types in X509_NAME_cmp:
2721 this is needed for some certificates that reencode DNs into UTF8Strings
2722 (in violation of RFC3280) and can't or wont issue name rollover
2726 *) Make an explicit check during certificate validation to see that
2727 the CA setting in each certificate on the chain is correct. As a
2728 side effect always do the following basic checks on extensions,
2729 not just when there's an associated purpose to the check:
2731 - if there is an unhandled critical extension (unless the user
2732 has chosen to ignore this fault)
2733 - if the path length has been exceeded (if one is set at all)
2734 - that certain extensions fit the associated purpose (if one has
2738 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2740 *) Avoid a race condition when CRLs are checked in a multi threaded
2741 environment. This would happen due to the reordering of the revoked
2742 entries during signature checking and serial number lookup. Now the
2743 encoding is cached and the serial number sort performed under a lock.
2744 Add new STACK function sk_is_sorted().
2747 *) Add Delta CRL to the extension code.
2750 *) Various fixes to s3_pkt.c so alerts are sent properly.
2751 [David Holmes <d.holmes@f5.com>]
2753 *) Reduce the chances of duplicate issuer name and serial numbers (in
2754 violation of RFC3280) using the OpenSSL certificate creation utilities.
2755 This is done by creating a random 64 bit value for the initial serial
2756 number when a serial number file is created or when a self signed
2757 certificate is created using 'openssl req -x509'. The initial serial
2758 number file is created using 'openssl x509 -next_serial' in CA.pl
2759 rather than being initialized to 1.
2762 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2764 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2765 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2766 [Joe Orton, Steve Henson]
2768 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2770 [Joe Orton, Steve Henson]
2772 *) Make it possible to have multiple active certificates with the same
2773 subject in the CA index file. This is done only if the keyword
2774 'unique_subject' is set to 'no' in the main CA section (default
2775 if 'CA_default') of the configuration file. The value is saved
2776 with the database itself in a separate index attribute file,
2777 named like the index file with '.attr' appended to the name.
2780 *) X509 verify fixes. Disable broken certificate workarounds when
2781 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2782 keyUsage extension present. Don't accept CRLs with unhandled critical
2783 extensions: since verify currently doesn't process CRL extensions this
2784 rejects a CRL with *any* critical extensions. Add new verify error codes
2788 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2789 A clarification of RFC2560 will require the use of OCTET STRINGs and
2790 some implementations cannot handle the current raw format. Since OpenSSL
2791 copies and compares OCSP nonces as opaque blobs without any attempt at
2792 parsing them this should not create any compatibility issues.
2795 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2796 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2797 this HMAC (and other) operations are several times slower than OpenSSL
2801 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2802 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2804 *) Use the correct content when signing type "other".
2807 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2809 *) Fix various bugs revealed by running the NISCC test suite:
2811 Stop out of bounds reads in the ASN1 code when presented with
2812 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2814 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2816 If verify callback ignores invalid public key errors don't try to check
2817 certificate signature with the NULL public key.
2821 *) New -ignore_err option in ocsp application to stop the server
2822 exiting on the first error in a request.
2825 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2826 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2830 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2831 extra data after the compression methods not only for TLS 1.0
2832 but also for SSL 3.0 (as required by the specification).
2833 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2835 *) Change X509_certificate_type() to mark the key as exported/exportable
2836 when it's 512 *bits* long, not 512 bytes.
2839 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2840 blocks during encryption.
2843 *) Various fixes to base64 BIO and non blocking I/O. On write
2844 flushes were not handled properly if the BIO retried. On read
2845 data was not being buffered properly and had various logic bugs.
2846 This also affects blocking I/O when the data being decoded is a
2850 *) Various S/MIME bugfixes and compatibility changes:
2851 output correct application/pkcs7 MIME type if
2852 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2853 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2854 of files as .eml work). Correctly handle very long lines in MIME
2858 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2860 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2861 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2862 a protocol version number mismatch like a decryption error
2863 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2866 *) Turn on RSA blinding by default in the default implementation
2867 to avoid a timing attack. Applications that don't want it can call
2868 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2869 They would be ill-advised to do so in most cases.
2870 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2872 *) Change RSA blinding code so that it works when the PRNG is not
2873 seeded (in this case, the secret RSA exponent is abused as
2874 an unpredictable seed -- if it is not unpredictable, there
2875 is no point in blinding anyway). Make RSA blinding thread-safe
2876 by remembering the creator's thread ID in rsa->blinding and
2877 having all other threads use local one-time blinding factors
2878 (this requires more computation than sharing rsa->blinding, but
2879 avoids excessive locking; and if an RSA object is not shared
2880 between threads, blinding will still be very fast).
2883 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2884 ENGINE as defaults for all supported algorithms irrespective of
2885 the 'flags' parameter. 'flags' is now honoured, so applications
2886 should make sure they are passing it correctly.
2889 *) Target "mingw" now allows native Windows code to be generated in
2890 the Cygwin environment as well as with the MinGW compiler.
2893 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2895 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2896 via timing by performing a MAC computation even if incorrrect
2897 block cipher padding has been found. This is a countermeasure
2898 against active attacks where the attacker has to distinguish
2899 between bad padding and a MAC verification error. (CVE-2003-0078)
2901 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2902 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2903 Martin Vuagnoux (EPFL, Ilion)]
2905 *) Make the no-err option work as intended. The intention with no-err
2906 is not to have the whole error stack handling routines removed from
2907 libcrypto, it's only intended to remove all the function name and
2908 reason texts, thereby removing some of the footprint that may not
2909 be interesting if those errors aren't displayed anyway.
2911 NOTE: it's still possible for any application or module to have it's
2912 own set of error texts inserted. The routines are there, just not
2913 used by default when no-err is given.
2916 *) Add support for FreeBSD on IA64.
2917 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2919 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2920 Kerberos function mit_des_cbc_cksum(). Before this change,
2921 the value returned by DES_cbc_cksum() was like the one from
2922 mit_des_cbc_cksum(), except the bytes were swapped.
2923 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2925 *) Allow an application to disable the automatic SSL chain building.
2926 Before this a rather primitive chain build was always performed in
2927 ssl3_output_cert_chain(): an application had no way to send the
2928 correct chain if the automatic operation produced an incorrect result.
2930 Now the chain builder is disabled if either:
2932 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2934 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2936 The reasoning behind this is that an application would not want the
2937 auto chain building to take place if extra chain certificates are
2938 present and it might also want a means of sending no additional
2939 certificates (for example the chain has two certificates and the
2943 *) Add the possibility to build without the ENGINE framework.
2944 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2946 *) Under Win32 gmtime() can return NULL: check return value in
2947 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2950 *) DSA routines: under certain error conditions uninitialized BN objects
2951 could be freed. Solution: make sure initialization is performed early
2952 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2953 Nils Larsch <nla@trustcenter.de> via PR#459)
2956 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2957 checked on reconnect on the client side, therefore session resumption
2958 could still fail with a "ssl session id is different" error. This
2959 behaviour is masked when SSL_OP_ALL is used due to
2960 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2961 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2962 followup to PR #377.
2965 *) IA-32 assembler support enhancements: unified ELF targets, support
2966 for SCO/Caldera platforms, fix for Cygwin shared build.
2969 *) Add support for FreeBSD on sparc64. As a consequence, support for
2970 FreeBSD on non-x86 processors is separate from x86 processors on
2971 the config script, much like the NetBSD support.
2972 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2974 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2976 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2979 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2980 code (06) was taken as the first octet of the session ID and the last
2981 octet was ignored consequently. As a result SSLv2 client side session
2982 caching could not have worked due to the session ID mismatch between
2984 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2988 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2989 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2993 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2994 seems that in spite of existing for more than a year, many application
2995 author have done nothing to provide the necessary callbacks, which
2996 means that this particular engine will not work properly anywhere.
2997 This is a very unfortunate situation which forces us, in the name
2998 of usability, to give the hw_ncipher.c a static lock, which is part
3000 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3001 appear in 0.9.8 or later. We EXPECT application authors to have
3002 dealt properly with this when 0.9.8 is released (unless we actually
3003 make such changes in the libcrypto locking code that changes will
3004 have to be made anyway).
3007 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3008 octets have been read, EOF or an error occurs. Without this change
3009 some truncated ASN1 structures will not produce an error.
3012 *) Disable Heimdal support, since it hasn't been fully implemented.
3013 Still give the possibility to force the use of Heimdal, but with
3014 warnings and a request that patches get sent to openssl-dev.
3017 *) Add the VC-CE target, introduce the WINCE sysname, and add
3018 INSTALL.WCE and appropriate conditionals to make it build.
3019 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3021 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3022 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3023 edit numbers of the version.
3024 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3026 *) Introduce safe string copy and catenation functions
3027 (BUF_strlcpy() and BUF_strlcat()).
3028 [Ben Laurie (CHATS) and Richard Levitte]
3030 *) Avoid using fixed-size buffers for one-line DNs.
3031 [Ben Laurie (CHATS)]
3033 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3034 resizing buffers containing secrets, and use where appropriate.
3035 [Ben Laurie (CHATS)]
3037 *) Avoid using fixed size buffers for configuration file location.
3038 [Ben Laurie (CHATS)]
3040 *) Avoid filename truncation for various CA files.
3041 [Ben Laurie (CHATS)]
3043 *) Use sizeof in preference to magic numbers.
3044 [Ben Laurie (CHATS)]
3046 *) Avoid filename truncation in cert requests.
3047 [Ben Laurie (CHATS)]
3049 *) Add assertions to check for (supposedly impossible) buffer
3051 [Ben Laurie (CHATS)]
3053 *) Don't cache truncated DNS entries in the local cache (this could
3054 potentially lead to a spoofing attack).
3055 [Ben Laurie (CHATS)]
3057 *) Fix various buffers to be large enough for hex/decimal
3058 representations in a platform independent manner.
3059 [Ben Laurie (CHATS)]
3061 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3062 resizing buffers containing secrets, and use where appropriate.
3063 [Ben Laurie (CHATS)]
3065 *) Add BIO_indent() to avoid much slightly worrying code to do
3067 [Ben Laurie (CHATS)]
3069 *) Convert sprintf()/BIO_puts() to BIO_printf().
3070 [Ben Laurie (CHATS)]
3072 *) buffer_gets() could terminate with the buffer only half
3074 [Ben Laurie (CHATS)]
3076 *) Add assertions to prevent user-supplied crypto functions from
3077 overflowing internal buffers by having large block sizes, etc.
3078 [Ben Laurie (CHATS)]
3080 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3082 [Ben Laurie (CHATS)]
3084 *) Eliminate unused copy of key in RC4.
3085 [Ben Laurie (CHATS)]
3087 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3088 [Ben Laurie (CHATS)]
3090 *) Fix off-by-one error in EGD path.
3091 [Ben Laurie (CHATS)]
3093 *) If RANDFILE path is too long, ignore instead of truncating.
3094 [Ben Laurie (CHATS)]
3096 *) Eliminate unused and incorrectly sized X.509 structure
3098 [Ben Laurie (CHATS)]
3100 *) Eliminate unused and dangerous function knumber().
3101 [Ben Laurie (CHATS)]
3103 *) Eliminate unused and dangerous structure, KSSL_ERR.
3104 [Ben Laurie (CHATS)]
3106 *) Protect against overlong session ID context length in an encoded
3107 session object. Since these are local, this does not appear to be
3109 [Ben Laurie (CHATS)]
3111 *) Change from security patch (see 0.9.6e below) that did not affect
3112 the 0.9.6 release series:
3114 Remote buffer overflow in SSL3 protocol - an attacker could
3115 supply an oversized master key in Kerberos-enabled versions.
3117 [Ben Laurie (CHATS)]
3119 *) Change the SSL kerb5 codes to match RFC 2712.
3122 *) Make -nameopt work fully for req and add -reqopt switch.
3123 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3125 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3126 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3128 *) Make sure tests can be performed even if the corresponding algorithms
3129 have been removed entirely. This was also the last step to make
3130 OpenSSL compilable with DJGPP under all reasonable conditions.
3131 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3133 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3134 to allow version independent disabling of normally unselected ciphers,
3135 which may be activated as a side-effect of selecting a single cipher.
3137 (E.g., cipher list string "RSA" enables ciphersuites that are left
3138 out of "ALL" because they do not provide symmetric encryption.
3139 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3140 [Lutz Jaenicke, Bodo Moeller]
3142 *) Add appropriate support for separate platform-dependent build
3143 directories. The recommended way to make a platform-dependent
3144 build directory is the following (tested on Linux), maybe with
3147 # Place yourself outside of the OpenSSL source tree. In
3148 # this example, the environment variable OPENSSL_SOURCE
3149 # is assumed to contain the absolute OpenSSL source directory.
3150 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3151 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3152 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3153 mkdir -p `dirname $F`
3154 ln -s $OPENSSL_SOURCE/$F $F
3157 To be absolutely sure not to disturb the source tree, a "make clean"
3158 is a good thing. If it isn't successfull, don't worry about it,
3159 it probably means the source directory is very clean.
3162 *) Make sure any ENGINE control commands make local copies of string
3163 pointers passed to them whenever necessary. Otherwise it is possible
3164 the caller may have overwritten (or deallocated) the original string
3165 data when a later ENGINE operation tries to use the stored values.
3166 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3168 *) Improve diagnostics in file reading and command-line digests.
3169 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3171 *) Add AES modes CFB and OFB to the object database. Correct an
3172 error in AES-CFB decryption.
3175 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3176 allows existing EVP_CIPHER_CTX structures to be reused after
3177 calling EVP_*Final(). This behaviour is used by encryption
3178 BIOs and some applications. This has the side effect that
3179 applications must explicitly clean up cipher contexts with
3180 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3183 *) Check the values of dna and dnb in bn_mul_recursive before calling
3184 bn_mul_comba (a non zero value means the a or b arrays do not contain
3185 n2 elements) and fallback to bn_mul_normal if either is not zero.
3188 *) Fix escaping of non-ASCII characters when using the -subj option
3189 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3192 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3193 form for "surname", serialNumber has no short form.
3194 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3195 therefore remove "mail" short name for "internet 7".
3196 The OID for unique identifiers in X509 certificates is
3197 x500UniqueIdentifier, not uniqueIdentifier.
3198 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3201 *) Add an "init" command to the ENGINE config module and auto initialize
3202 ENGINEs. Without any "init" command the ENGINE will be initialized
3203 after all ctrl commands have been executed on it. If init=1 the
3204 ENGINE is initailized at that point (ctrls before that point are run
3205 on the uninitialized ENGINE and after on the initialized one). If
3206 init=0 then the ENGINE will not be iniatialized at all.
3209 *) Fix the 'app_verify_callback' interface so that the user-defined
3210 argument is actually passed to the callback: In the
3211 SSL_CTX_set_cert_verify_callback() prototype, the callback
3212 declaration has been changed from
3215 int (*cb)(X509_STORE_CTX *,void *);
3216 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3217 i=s->ctx->app_verify_callback(&ctx)
3218 has been changed into
3219 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3221 To update applications using SSL_CTX_set_cert_verify_callback(),
3222 a dummy argument can be added to their callback functions.
3223 [D. K. Smetters <smetters@parc.xerox.com>]
3225 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3226 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3228 *) Add and OPENSSL_LOAD_CONF define which will cause
3229 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3230 This allows older applications to transparently support certain
3231 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3232 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3233 load the config file and OPENSSL_add_all_algorithms_conf() which will
3234 always load it have also been added.
3237 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3238 Adjust NIDs and EVP layer.
3239 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3241 *) Config modules support in openssl utility.
3243 Most commands now load modules from the config file,
3244 though in a few (such as version) this isn't done
3245 because it couldn't be used for anything.
3247 In the case of ca and req the config file used is
3248 the same as the utility itself: that is the -config
3249 command line option can be used to specify an
3253 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3254 use "openssl_conf" if filename is NULL use default openssl config file.
3257 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3258 config section name. Add a new flag to tolerate a missing config file
3259 and move code to CONF_modules_load_file().
3262 *) Support for crypto accelerator cards from Accelerated Encryption
3263 Processing, www.aep.ie. (Use engine 'aep')
3264 The support was copied from 0.9.6c [engine] and adapted/corrected
3265 to work with the new engine framework.
3266 [AEP Inc. and Richard Levitte]
3268 *) Support for SureWare crypto accelerator cards from Baltimore
3269 Technologies. (Use engine 'sureware')
3270 The support was copied from 0.9.6c [engine] and adapted
3271 to work with the new engine framework.
3274 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3275 make the newer ENGINE framework commands for the CHIL engine work.
3276 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3278 *) Make it possible to produce shared libraries on ReliantUNIX.
3279 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3281 *) Add the configuration target debug-linux-ppro.
3282 Make 'openssl rsa' use the general key loading routines
3283 implemented in apps.c, and make those routines able to
3284 handle the key format FORMAT_NETSCAPE and the variant
3286 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3288 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3289 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3291 *) Add -keyform to rsautl, and document -engine.
3292 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3294 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3295 BIO_R_NO_SUCH_FILE error code rather than the generic
3296 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3299 *) Add new functions
3301 ERR_peek_last_error_line
3302 ERR_peek_last_error_line_data.
3303 These are similar to
3306 ERR_peek_error_line_data,
3307 but report on the latest error recorded rather than the first one
3308 still in the error queue.
3309 [Ben Laurie, Bodo Moeller]
3311 *) default_algorithms option in ENGINE config module. This allows things
3313 default_algorithms = ALL
3314 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3317 *) Prelminary ENGINE config module.
3320 *) New experimental application configuration code.
3323 *) Change the AES code to follow the same name structure as all other
3324 symmetric ciphers, and behave the same way. Move everything to
3325 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3326 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3328 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3329 [Ben Laurie and Theo de Raadt]
3331 *) Add option to output public keys in req command.
3332 [Massimiliano Pala madwolf@openca.org]
3334 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3335 (up to about 10% better than before for P-192 and P-224).
3338 *) New functions/macros
3340 SSL_CTX_set_msg_callback(ctx, cb)
3341 SSL_CTX_set_msg_callback_arg(ctx, arg)
3342 SSL_set_msg_callback(ssl, cb)
3343 SSL_set_msg_callback_arg(ssl, arg)
3345 to request calling a callback function
3347 void cb(int write_p, int version, int content_type,
3348 const void *buf, size_t len, SSL *ssl, void *arg)
3350 whenever a protocol message has been completely received
3351 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3352 protocol version according to which the SSL library interprets
3353 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3354 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3355 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3356 specification (change_cipher_spec(20), alert(21), handshake(22)).
3357 'buf' and 'len' point to the actual message, 'ssl' to the
3358 SSL object, and 'arg' is the application-defined value set by
3359 SSL[_CTX]_set_msg_callback_arg().
3361 'openssl s_client' and 'openssl s_server' have new '-msg' options
3362 to enable a callback that displays all protocol messages.
3365 *) Change the shared library support so shared libraries are built as
3366 soon as the corresponding static library is finished, and thereby get
3367 openssl and the test programs linked against the shared library.
3368 This still only happens when the keyword "shard" has been given to
3369 the configuration scripts.
3371 NOTE: shared library support is still an experimental thing, and
3372 backward binary compatibility is still not guaranteed.
3373 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3375 *) Add support for Subject Information Access extension.
3376 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3378 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3379 additional bytes when new memory had to be allocated, not just
3380 when reusing an existing buffer.
3383 *) New command line and configuration option 'utf8' for the req command.
3384 This allows field values to be specified as UTF8 strings.
3387 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3388 runs for the former and machine-readable output for the latter.
3391 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3392 of the e-mail address in the DN (i.e., it will go into a certificate
3393 extension only). The new configuration file option 'email_in_dn = no'
3394 has the same effect.
3395 [Massimiliano Pala madwolf@openca.org]
3397 *) Change all functions with names starting with des_ to be starting
3398 with DES_ instead. Add wrappers that are compatible with libdes,
3399 but are named _ossl_old_des_*. Finally, add macros that map the
3400 des_* symbols to the corresponding _ossl_old_des_* if libdes
3401 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3402 desired, the des_* symbols will be mapped to DES_*, with one
3405 Since we provide two compatibility mappings, the user needs to
3406 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3407 compatibility is desired. The default (i.e., when that macro
3408 isn't defined) is OpenSSL 0.9.6c compatibility.
3410 There are also macros that enable and disable the support of old
3411 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3412 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3413 are defined, the default will apply: to support the old des routines.
3415 In either case, one must include openssl/des.h to get the correct
3416 definitions. Do not try to just include openssl/des_old.h, that
3419 NOTE: This is a major break of an old API into a new one. Software
3420 authors are encouraged to switch to the DES_ style functions. Some
3421 time in the future, des_old.h and the libdes compatibility functions
3422 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3423 default), and then completely removed.
3426 *) Test for certificates which contain unsupported critical extensions.
3427 If such a certificate is found during a verify operation it is
3428 rejected by default: this behaviour can be overridden by either
3429 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3430 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3431 X509_supported_extension() has also been added which returns 1 if a
3432 particular extension is supported.
3435 *) Modify the behaviour of EVP cipher functions in similar way to digests
3436 to retain compatibility with existing code.
3439 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3440 compatibility with existing code. In particular the 'ctx' parameter does
3441 not have to be to be initialized before the call to EVP_DigestInit() and
3442 it is tidied up after a call to EVP_DigestFinal(). New function
3443 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3444 EVP_MD_CTX_copy() changed to not require the destination to be
3445 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3446 requires the destination to be valid.
3448 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3449 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3452 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3453 so that complete 'Handshake' protocol structures are kept in memory
3454 instead of overwriting 'msg_type' and 'length' with 'body' data.
3457 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3458 [Massimo Santin via Richard Levitte]
3460 *) Major restructuring to the underlying ENGINE code. This includes
3461 reduction of linker bloat, separation of pure "ENGINE" manipulation
3462 (initialisation, etc) from functionality dealing with implementations
3463 of specific crypto iterfaces. This change also introduces integrated
3464 support for symmetric ciphers and digest implementations - so ENGINEs
3465 can now accelerate these by providing EVP_CIPHER and EVP_MD
3466 implementations of their own. This is detailed in crypto/engine/README
3467 as it couldn't be adequately described here. However, there are a few
3468 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3469 were changed in the original introduction of ENGINE code have now
3470 reverted back - the hooking from this code to ENGINE is now a good
3471 deal more passive and at run-time, operations deal directly with
3472 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3473 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3474 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3475 they were not being used by the framework as there is no concept of a
3476 BIGNUM_METHOD and they could not be generalised to the new
3477 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3478 ENGINE_cpy() has been removed as it cannot be consistently defined in
3482 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3485 *) Change mkdef.pl to sort symbols that get the same entry number,
3486 and make sure the automatically generated functions ERR_load_*
3487 become part of libeay.num as well.
3490 *) New function SSL_renegotiate_pending(). This returns true once
3491 renegotiation has been requested (either SSL_renegotiate() call
3492 or HelloRequest/ClientHello receveived from the peer) and becomes
3493 false once a handshake has been completed.
3494 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3495 sends a HelloRequest, but does not ensure that a handshake takes
3496 place. SSL_renegotiate_pending() is useful for checking if the
3497 client has followed the request.)
3500 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3501 By default, clients may request session resumption even during
3502 renegotiation (if session ID contexts permit); with this option,
3503 session resumption is possible only in the first handshake.
3505 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3506 more bits available for options that should not be part of
3507 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3510 *) Add some demos for certificate and certificate request creation.
3513 *) Make maximum certificate chain size accepted from the peer application
3514 settable (SSL*_get/set_max_cert_list()), as proposed by
3515 "Douglas E. Engert" <deengert@anl.gov>.
3518 *) Add support for shared libraries for Unixware-7
3519 (Boyd Lynn Gerber <gerberb@zenez.com>).
3522 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3523 be done prior to destruction. Use this to unload error strings from
3524 ENGINEs that load their own error strings. NB: This adds two new API
3525 functions to "get" and "set" this destroy handler in an ENGINE.
3528 *) Alter all existing ENGINE implementations (except "openssl" and
3529 "openbsd") to dynamically instantiate their own error strings. This
3530 makes them more flexible to be built both as statically-linked ENGINEs
3531 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3532 Also, add stub code to each that makes building them as self-contained
3533 shared-libraries easier (see README.ENGINE).
3536 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3537 implementations into applications that are completely implemented in
3538 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3539 commands that can be used to configure what shared-library to load and
3540 to control aspects of the way it is handled. Also, made an update to
3541 the README.ENGINE file that brings its information up-to-date and
3542 provides some information and instructions on the "dynamic" ENGINE
3543 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3546 *) Make it possible to unload ranges of ERR strings with a new
3547 "ERR_unload_strings" function.
3550 *) Add a copy() function to EVP_MD.
3553 *) Make EVP_MD routines take a context pointer instead of just the
3554 md_data void pointer.
3557 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3558 that the digest can only process a single chunk of data
3559 (typically because it is provided by a piece of
3560 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3561 is only going to provide a single chunk of data, and hence the
3562 framework needn't accumulate the data for oneshot drivers.
3565 *) As with "ERR", make it possible to replace the underlying "ex_data"
3566 functions. This change also alters the storage and management of global
3567 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3568 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3569 index counters. The API functions that use this state have been changed
3570 to take a "class_index" rather than pointers to the class's local STACK
3571 and counter, and there is now an API function to dynamically create new
3572 classes. This centralisation allows us to (a) plug a lot of the
3573 thread-safety problems that existed, and (b) makes it possible to clean
3574 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3575 such data would previously have always leaked in application code and
3576 workarounds were in place to make the memory debugging turn a blind eye
3577 to it. Application code that doesn't use this new function will still
3578 leak as before, but their memory debugging output will announce it now
3579 rather than letting it slide.
3581 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3582 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3583 has a return value to indicate success or failure.
3586 *) Make it possible to replace the underlying "ERR" functions such that the
3587 global state (2 LHASH tables and 2 locks) is only used by the "default"
3588 implementation. This change also adds two functions to "get" and "set"
3589 the implementation prior to it being automatically set the first time
3590 any other ERR function takes place. Ie. an application can call "get",
3591 pass the return value to a module it has just loaded, and that module
3592 can call its own "set" function using that value. This means the
3593 module's "ERR" operations will use (and modify) the error state in the
3594 application and not in its own statically linked copy of OpenSSL code.
3597 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3598 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3599 the operation, and provides a more encapsulated way for external code
3600 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3601 to use these functions rather than manually incrementing the counts.
3603 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3606 *) Add EVP test program.
3609 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3612 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3613 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3614 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3615 These allow a CRL to be built without having to access X509_CRL fields
3616 directly. Modify 'ca' application to use new functions.
3619 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3620 bug workarounds. Rollback attack detection is a security feature.
3621 The problem will only arise on OpenSSL servers when TLSv1 is not
3622 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3623 Software authors not wanting to support TLSv1 will have special reasons
3624 for their choice and can explicitly enable this option.
3625 [Bodo Moeller, Lutz Jaenicke]
3627 *) Rationalise EVP so it can be extended: don't include a union of
3628 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3629 (similar to those existing for EVP_CIPHER_CTX).
3634 EVP_MD_CTX_init(&md); /* new function call */
3635 EVP_DigestInit(&md, EVP_sha1());
3636 EVP_DigestUpdate(&md, in, len);
3637 EVP_DigestFinal(&md, out, NULL);
3638 EVP_MD_CTX_cleanup(&md); /* new function call */
3642 *) Make DES key schedule conform to the usual scheme, as well as
3643 correcting its structure. This means that calls to DES functions
3644 now have to pass a pointer to a des_key_schedule instead of a
3645 plain des_key_schedule (which was actually always a pointer
3648 des_key_schedule ks;
3650 des_set_key_checked(..., &ks);
3651 des_ncbc_encrypt(..., &ks, ...);
3653 (Note that a later change renames 'des_...' into 'DES_...'.)
3656 *) Initial reduction of linker bloat: the use of some functions, such as
3657 PEM causes large amounts of unused functions to be linked in due to
3658 poor organisation. For example pem_all.c contains every PEM function
3659 which has a knock on effect of linking in large amounts of (unused)
3660 ASN1 code. Grouping together similar functions and splitting unrelated
3661 functions prevents this.
3664 *) Cleanup of EVP macros.
3667 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3668 correct _ecb suffix.
3671 *) Add initial OCSP responder support to ocsp application. The
3672 revocation information is handled using the text based index
3673 use by the ca application. The responder can either handle
3674 requests generated internally, supplied in files (for example
3675 via a CGI script) or using an internal minimal server.
3678 *) Add configuration choices to get zlib compression for TLS.
3681 *) Changes to Kerberos SSL for RFC 2712 compliance:
3682 1. Implemented real KerberosWrapper, instead of just using
3683 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3684 2. Implemented optional authenticator field of KerberosWrapper.
3686 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3687 and authenticator structs; see crypto/krb5/.
3689 Generalized Kerberos calls to support multiple Kerberos libraries.
3690 [Vern Staats <staatsvr@asc.hpc.mil>,
3691 Jeffrey Altman <jaltman@columbia.edu>
3692 via Richard Levitte]
3694 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3695 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3696 values for each of the key sizes rather than having just
3697 parameters (and 'speed' generating keys each time).
3700 *) Speed up EVP routines.
3703 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3704 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3705 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3706 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3708 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3709 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3710 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3713 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3715 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3718 *) Added the OS2-EMX target.
3719 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3721 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3722 to support NCONF routines in extension code. New function CONF_set_nconf()
3723 to allow functions which take an NCONF to also handle the old LHASH
3724 structure: this means that the old CONF compatible routines can be
3725 retained (in particular wrt extensions) without having to duplicate the
3726 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3729 *) Enhance the general user interface with mechanisms for inner control
3730 and with possibilities to have yes/no kind of prompts.
3733 *) Change all calls to low level digest routines in the library and
3734 applications to use EVP. Add missing calls to HMAC_cleanup() and
3735 don't assume HMAC_CTX can be copied using memcpy().
3736 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3738 *) Add the possibility to control engines through control names but with
3739 arbitrary arguments instead of just a string.
3740 Change the key loaders to take a UI_METHOD instead of a callback
3741 function pointer. NOTE: this breaks binary compatibility with earlier
3742 versions of OpenSSL [engine].
3743 Adapt the nCipher code for these new conditions and add a card insertion
3747 *) Enhance the general user interface with mechanisms to better support
3748 dialog box interfaces, application-defined prompts, the possibility
3749 to use defaults (for example default passwords from somewhere else)
3750 and interrupts/cancellations.
3753 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3754 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3757 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3758 tidy up some unnecessarily weird code in 'sk_new()').
3759 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3761 *) Change the key loading routines for ENGINEs to use the same kind
3762 callback (pem_password_cb) as all other routines that need this
3766 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3767 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3768 than this minimum value is recommended.
3771 *) New random seeder for OpenVMS, using the system process statistics
3772 that are easily reachable.
3775 *) Windows apparently can't transparently handle global
3776 variables defined in DLLs. Initialisations such as:
3778 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3780 wont compile. This is used by the any applications that need to
3781 declare their own ASN1 modules. This was fixed by adding the option
3782 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3783 needed for static libraries under Win32.
3786 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3787 setting of purpose and trust fields. New X509_STORE trust and
3788 purpose functions and tidy up setting in other SSL functions.
3791 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3792 structure. These are inherited by X509_STORE_CTX when it is
3793 initialised. This allows various defaults to be set in the
3794 X509_STORE structure (such as flags for CRL checking and custom
3795 purpose or trust settings) for functions which only use X509_STORE_CTX
3796 internally such as S/MIME.
3798 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3799 trust settings if they are not set in X509_STORE. This allows X509_STORE
3800 purposes and trust (in S/MIME for example) to override any set by default.
3802 Add command line options for CRL checking to smime, s_client and s_server
3806 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3807 are set then the CRL is looked up in the X509_STORE structure and
3808 its validity and signature checked, then if the certificate is found
3809 in the CRL the verify fails with a revoked error.
3811 Various new CRL related callbacks added to X509_STORE_CTX structure.
3813 Command line options added to 'verify' application to support this.
3815 This needs some additional work, such as being able to handle multiple
3816 CRLs with different times, extension based lookup (rather than just
3817 by subject name) and ultimately more complete V2 CRL extension
3821 *) Add a general user interface API (crypto/ui/). This is designed
3822 to replace things like des_read_password and friends (backward
3823 compatibility functions using this new API are provided).
3824 The purpose is to remove prompting functions from the DES code
3825 section as well as provide for prompting through dialog boxes in
3826 a window system and the like.
3829 *) Add "ex_data" support to ENGINE so implementations can add state at a
3830 per-structure level rather than having to store it globally.
3833 *) Make it possible for ENGINE structures to be copied when retrieved by
3834 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3835 This causes the "original" ENGINE structure to act like a template,
3836 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3837 operational state can be localised to each ENGINE structure, despite the
3838 fact they all share the same "methods". New ENGINE structures returned in
3839 this case have no functional references and the return value is the single
3840 structural reference. This matches the single structural reference returned
3841 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3845 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3846 needs to match any other type at all we need to manually clear the
3850 *) Changes to the "openssl engine" utility to include;
3851 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3852 about an ENGINE's available control commands.
3853 - executing control commands from command line arguments using the
3854 '-pre' and '-post' switches. '-post' is only used if '-t' is
3855 specified and the ENGINE is successfully initialised. The syntax for
3856 the individual commands are colon-separated, for example;
3857 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3860 *) New dynamic control command support for ENGINEs. ENGINEs can now
3861 declare their own commands (numbers), names (strings), descriptions,
3862 and input types for run-time discovery by calling applications. A
3863 subset of these commands are implicitly classed as "executable"
3864 depending on their input type, and only these can be invoked through
3865 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3866 can be based on user input, config files, etc). The distinction is
3867 that "executable" commands cannot return anything other than a boolean
3868 result and can only support numeric or string input, whereas some
3869 discoverable commands may only be for direct use through
3870 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3871 pointers, or other custom uses. The "executable" commands are to
3872 support parameterisations of ENGINE behaviour that can be
3873 unambiguously defined by ENGINEs and used consistently across any
3874 OpenSSL-based application. Commands have been added to all the
3875 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3876 control over shared-library paths without source code alterations.
3879 *) Changed all ENGINE implementations to dynamically allocate their
3880 ENGINEs rather than declaring them statically. Apart from this being
3881 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3882 this also allows the implementations to compile without using the
3883 internal engine_int.h header.
3886 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3887 'const' value. Any code that should be able to modify a RAND_METHOD
3888 should already have non-const pointers to it (ie. they should only
3889 modify their own ones).
3892 *) Made a variety of little tweaks to the ENGINE code.
3893 - "atalla" and "ubsec" string definitions were moved from header files
3894 to C code. "nuron" string definitions were placed in variables
3895 rather than hard-coded - allowing parameterisation of these values
3896 later on via ctrl() commands.
3897 - Removed unused "#if 0"'d code.
3898 - Fixed engine list iteration code so it uses ENGINE_free() to release
3899 structural references.
3900 - Constified the RAND_METHOD element of ENGINE structures.
3901 - Constified various get/set functions as appropriate and added
3902 missing functions (including a catch-all ENGINE_cpy that duplicates
3903 all ENGINE values onto a new ENGINE except reference counts/state).
3904 - Removed NULL parameter checks in get/set functions. Setting a method
3905 or function to NULL is a way of cancelling out a previously set
3906 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3907 and doesn't justify the extra error symbols and code.
3908 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3909 flags from engine_int.h to engine.h.
3910 - Changed prototypes for ENGINE handler functions (init(), finish(),
3911 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3914 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3915 to the algorithm using long division. The binary algorithm can be
3916 used only if the modulus is odd. On 32-bit systems, it is faster
3917 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3918 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3919 up to 450 bits. In 64-bit environments, the binary algorithm
3920 appears to be advantageous for much longer moduli; here we use it
3921 for moduli up to 2048 bits.
3924 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3925 could not support the combine flag in choice fields.
3928 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3929 extensions from a certificate request to the certificate.
3932 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3933 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3934 file: this allows the display of the certificate about to be
3935 signed to be customised, to allow certain fields to be included
3936 or excluded and extension details. The old system didn't display
3937 multicharacter strings properly, omitted fields not in the policy
3938 and couldn't display additional details such as extensions.
3941 *) Function EC_POINTs_mul for multiple scalar multiplication
3942 of an arbitrary number of elliptic curve points
3943 \sum scalars[i]*points[i],
3944 optionally including the generator defined for the EC_GROUP:
3945 scalar*generator + \sum scalars[i]*points[i].
3947 EC_POINT_mul is a simple wrapper function for the typical case
3948 that the point list has just one item (besides the optional
3952 *) First EC_METHODs for curves over GF(p):
3954 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3955 operations and provides various method functions that can also
3956 operate with faster implementations of modular arithmetic.
3958 EC_GFp_mont_method() reuses most functions that are part of
3959 EC_GFp_simple_method, but uses Montgomery arithmetic.
3961 [Bodo Moeller; point addition and point doubling
3962 implementation directly derived from source code provided by
3963 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3965 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3966 crypto/ec/ec_lib.c):
3968 Curves are EC_GROUP objects (with an optional group generator)
3969 based on EC_METHODs that are built into the library.
3971 Points are EC_POINT objects based on EC_GROUP objects.
3973 Most of the framework would be able to handle curves over arbitrary
3974 finite fields, but as there are no obvious types for fields other
3975 than GF(p), some functions are limited to that for now.
3978 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3979 that the file contains a complete HTTP response.
3982 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3983 change the def and num file printf format specifier from "%-40sXXX"
3984 to "%-39s XXX". The latter will always guarantee a space after the
3985 field while the former will cause them to run together if the field
3986 is 40 of more characters long.
3989 *) Constify the cipher and digest 'method' functions and structures
3990 and modify related functions to take constant EVP_MD and EVP_CIPHER
3994 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3995 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3998 *) Modify EVP_Digest*() routines so they now return values. Although the
3999 internal software routines can never fail additional hardware versions
4003 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4005 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4006 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4009 ERR_R_NESTED_ASN1_ERROR
4011 ERR_R_MISSING_ASN1_EOS
4012 were 4 .. 9, conflicting with
4013 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4015 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4016 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4018 Add new error code 'ERR_R_INTERNAL_ERROR'.
4021 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4025 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4026 sets the subject name for a new request or supersedes the
4027 subject name in a given request. Formats that can be parsed are
4028 'CN=Some Name, OU=myOU, C=IT'
4030 'CN=Some Name/OU=myOU/C=IT'.
4032 Add options '-batch' and '-verbose' to 'openssl req'.
4033 [Massimiliano Pala <madwolf@hackmasters.net>]
4035 *) Introduce the possibility to access global variables through
4036 functions on platform were that's the best way to handle exporting
4037 global variables in shared libraries. To enable this functionality,
4038 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4039 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4040 is normally done by Configure or something similar).
4042 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4043 in the source file (foo.c) like this:
4045 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4046 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4048 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4049 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4051 OPENSSL_DECLARE_GLOBAL(int,foo);
4052 #define foo OPENSSL_GLOBAL_REF(foo)
4053 OPENSSL_DECLARE_GLOBAL(double,bar);
4054 #define bar OPENSSL_GLOBAL_REF(bar)
4056 The #defines are very important, and therefore so is including the
4057 header file everywhere where the defined globals are used.
4059 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4060 of ASN.1 items, but that structure is a bit different.
4062 The largest change is in util/mkdef.pl which has been enhanced with
4063 better and easier to understand logic to choose which symbols should
4064 go into the Windows .def files as well as a number of fixes and code
4065 cleanup (among others, algorithm keywords are now sorted
4066 lexicographically to avoid constant rewrites).
4069 *) In BN_div() keep a copy of the sign of 'num' before writing the
4070 result to 'rm' because if rm==num the value will be overwritten
4071 and produce the wrong result if 'num' is negative: this caused
4072 problems with BN_mod() and BN_nnmod().
4075 *) Function OCSP_request_verify(). This checks the signature on an
4076 OCSP request and verifies the signer certificate. The signer
4077 certificate is just checked for a generic purpose and OCSP request
4081 *) Add OCSP_check_validity() function to check the validity of OCSP
4082 responses. OCSP responses are prepared in real time and may only
4083 be a few seconds old. Simply checking that the current time lies
4084 between thisUpdate and nextUpdate max reject otherwise valid responses
4085 caused by either OCSP responder or client clock inaccuracy. Instead
4086 we allow thisUpdate and nextUpdate to fall within a certain period of
4087 the current time. The age of the response can also optionally be
4088 checked. Two new options -validity_period and -status_age added to
4092 *) If signature or public key algorithm is unrecognized print out its
4093 OID rather that just UNKNOWN.
4096 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4097 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4098 ID to be generated from the issuer certificate alone which can then be
4099 passed to OCSP_id_issuer_cmp().
4102 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4103 ASN1 modules to export functions returning ASN1_ITEM pointers
4104 instead of the ASN1_ITEM structures themselves. This adds several
4105 new macros which allow the underlying ASN1 function/structure to
4106 be accessed transparently. As a result code should not use ASN1_ITEM
4107 references directly (such as &X509_it) but instead use the relevant
4108 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4109 use of the new ASN1 code on platforms where exporting structures
4110 is problematical (for example in shared libraries) but exporting
4111 functions returning pointers to structures is not.
4114 *) Add support for overriding the generation of SSL/TLS session IDs.
4115 These callbacks can be registered either in an SSL_CTX or per SSL.
4116 The purpose of this is to allow applications to control, if they wish,
4117 the arbitrary values chosen for use as session IDs, particularly as it
4118 can be useful for session caching in multiple-server environments. A
4119 command-line switch for testing this (and any client code that wishes
4120 to use such a feature) has been added to "s_server".
4121 [Geoff Thorpe, Lutz Jaenicke]
4123 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4124 of the form '#if defined(...) || defined(...) || ...' and
4125 '#if !defined(...) && !defined(...) && ...'. This also avoids
4126 the growing number of special cases it was previously handling.
4129 *) Make all configuration macros available for application by making
4130 sure they are available in opensslconf.h, by giving them names starting
4131 with "OPENSSL_" to avoid conflicts with other packages and by making
4132 sure e_os2.h will cover all platform-specific cases together with
4134 Additionally, it is now possible to define configuration/platform-
4135 specific names (called "system identities"). In the C code, these
4136 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4137 macro with the name beginning with "OPENSSL_SYS_", which is determined
4138 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4142 *) New option -set_serial to 'req' and 'x509' this allows the serial
4143 number to use to be specified on the command line. Previously self
4144 signed certificates were hard coded with serial number 0 and the
4145 CA options of 'x509' had to use a serial number in a file which was
4149 *) New options to 'ca' utility to support V2 CRL entry extensions.
4150 Currently CRL reason, invalidity date and hold instruction are
4151 supported. Add new CRL extensions to V3 code and some new objects.
4154 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4155 disable standard block padding (aka PKCS#5 padding) in the EVP
4156 API, which was previously mandatory. This means that the data is
4157 not padded in any way and so the total length much be a multiple
4158 of the block size, otherwise an error occurs.
4161 *) Initial (incomplete) OCSP SSL support.
4164 *) New function OCSP_parse_url(). This splits up a URL into its host,
4165 port and path components: primarily to parse OCSP URLs. New -url
4166 option to ocsp utility.
4169 *) New nonce behavior. The return value of OCSP_check_nonce() now
4170 reflects the various checks performed. Applications can decide
4171 whether to tolerate certain situations such as an absent nonce
4172 in a response when one was present in a request: the ocsp application
4173 just prints out a warning. New function OCSP_add1_basic_nonce()
4174 this is to allow responders to include a nonce in a response even if
4175 the request is nonce-less.
4178 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4179 skipped when using openssl x509 multiple times on a single input file,
4180 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4183 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4184 set string type: to handle setting ASN1_TIME structures. Fix ca
4185 utility to correctly initialize revocation date of CRLs.
4188 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4189 the clients preferred ciphersuites and rather use its own preferences.
4190 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4191 Internet Explorer by ensuring unchanged hash method during stepup.
4192 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4195 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4196 to aes and add a new 'exist' option to print out symbols that don't
4200 *) Additional options to ocsp utility to allow flags to be set and
4201 additional certificates supplied.
4204 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4205 OCSP client a number of certificate to only verify the response
4209 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4210 handle the new API. Currently only ECB, CBC modes supported. Add new
4213 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4214 Encryption Standard (AES) Ciphersuites for Transport Layer
4215 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4216 not enabled by default and were not part of the "ALL" ciphersuite
4217 alias because they were not yet official; they could be
4218 explicitly requested by specifying the "AESdraft" ciphersuite
4219 group alias. In the final release of OpenSSL 0.9.7, the group
4220 alias is called "AES" and is part of "ALL".)
4221 [Ben Laurie, Steve Henson, Bodo Moeller]
4223 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4224 request to response.
4227 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4228 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4229 extract information from a certificate request. OCSP_response_create()
4230 creates a response and optionally adds a basic response structure.
4231 OCSP_basic_add1_status() adds a complete single response to a basic
4232 response and returns the OCSP_SINGLERESP structure just added (to allow
4233 extensions to be included for example). OCSP_basic_add1_cert() adds a
4234 certificate to a basic response and OCSP_basic_sign() signs a basic
4235 response with various flags. New helper functions ASN1_TIME_check()
4236 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4237 (converts ASN1_TIME to GeneralizedTime).
4240 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4241 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4242 structure from a certificate. X509_pubkey_digest() digests the public_key
4243 contents: this is used in various key identifiers.
4246 *) Make sk_sort() tolerate a NULL argument.
4247 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4249 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4250 passed by the function are trusted implicitly. If any of them signed the
4251 response then it is assumed to be valid and is not verified.
4254 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4255 to data. This was previously part of the PKCS7 ASN1 code. This
4256 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4257 [Steve Henson, reported by Kenneth R. Robinette
4258 <support@securenetterm.com>]
4260 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4261 routines: without these tracing memory leaks is very painful.
4262 Fix leaks in PKCS12 and PKCS7 routines.
4265 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4266 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4267 effectively meant GeneralizedTime would never be used. Now it
4268 is initialised to -1 but X509_time_adj() now has to check the value
4269 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4270 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4271 [Steve Henson, reported by Kenneth R. Robinette
4272 <support@securenetterm.com>]
4274 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4275 result in a zero length in the ASN1_INTEGER structure which was
4276 not consistent with the structure when d2i_ASN1_INTEGER() was used
4277 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4278 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4279 where it did not print out a minus for negative ASN1_INTEGER.
4282 *) Add summary printout to ocsp utility. The various functions which
4283 convert status values to strings have been renamed to:
4284 OCSP_response_status_str(), OCSP_cert_status_str() and
4285 OCSP_crl_reason_str() and are no longer static. New options
4286 to verify nonce values and to disable verification. OCSP response
4287 printout format cleaned up.
4290 *) Add additional OCSP certificate checks. These are those specified
4291 in RFC2560. This consists of two separate checks: the CA of the
4292 certificate being checked must either be the OCSP signer certificate
4293 or the issuer of the OCSP signer certificate. In the latter case the
4294 OCSP signer certificate must contain the OCSP signing extended key
4295 usage. This check is performed by attempting to match the OCSP
4296 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4297 in the OCSP_CERTID structures of the response.
4300 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4301 and related routines. This uses the standard OpenSSL certificate
4302 verify routines to perform initial checks (just CA validity) and
4303 to obtain the certificate chain. Then additional checks will be
4304 performed on the chain. Currently the root CA is checked to see
4305 if it is explicitly trusted for OCSP signing. This is used to set
4306 a root CA as a global signing root: that is any certificate that
4307 chains to that CA is an acceptable OCSP signing certificate.
4310 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4311 extensions from a separate configuration file.
4312 As when reading extensions from the main configuration file,
4313 the '-extensions ...' option may be used for specifying the
4315 [Massimiliano Pala <madwolf@comune.modena.it>]
4317 *) New OCSP utility. Allows OCSP requests to be generated or
4318 read. The request can be sent to a responder and the output
4319 parsed, outputed or printed in text form. Not complete yet:
4320 still needs to check the OCSP response validity.
4323 *) New subcommands for 'openssl ca':
4324 'openssl ca -status <serial>' prints the status of the cert with
4325 the given serial number (according to the index file).
4326 'openssl ca -updatedb' updates the expiry status of certificates
4328 [Massimiliano Pala <madwolf@comune.modena.it>]
4330 *) New '-newreq-nodes' command option to CA.pl. This is like
4331 '-newreq', but calls 'openssl req' with the '-nodes' option
4332 so that the resulting key is not encrypted.
4333 [Damien Miller <djm@mindrot.org>]
4335 *) New configuration for the GNU Hurd.
4336 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4338 *) Initial code to implement OCSP basic response verify. This
4339 is currently incomplete. Currently just finds the signer's
4340 certificate and verifies the signature on the response.
4343 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4344 value of OPENSSLDIR. This is available via the new '-d' option
4345 to 'openssl version', and is also included in 'openssl version -a'.
4348 *) Allowing defining memory allocation callbacks that will be given
4349 file name and line number information in additional arguments
4350 (a const char* and an int). The basic functionality remains, as
4351 well as the original possibility to just replace malloc(),
4352 realloc() and free() by functions that do not know about these
4353 additional arguments. To register and find out the current
4354 settings for extended allocation functions, the following
4355 functions are provided:
4357 CRYPTO_set_mem_ex_functions
4358 CRYPTO_set_locked_mem_ex_functions
4359 CRYPTO_get_mem_ex_functions
4360 CRYPTO_get_locked_mem_ex_functions
4362 These work the same way as CRYPTO_set_mem_functions and friends.
4363 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4364 extended allocation function is enabled.
4365 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4366 a conventional allocation function is enabled.
4367 [Richard Levitte, Bodo Moeller]
4369 *) Finish off removing the remaining LHASH function pointer casts.
4370 There should no longer be any prototype-casting required when using
4371 the LHASH abstraction, and any casts that remain are "bugs". See
4372 the callback types and macros at the head of lhash.h for details
4373 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4376 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4377 If /dev/[u]random devices are not available or do not return enough
4378 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4380 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4381 /etc/entropy will be queried once each in this sequence, quering stops
4382 when enough entropy was collected without querying more sockets.
4385 *) Change the Unix RAND_poll() variant to be able to poll several
4386 random devices, as specified by DEVRANDOM, until a sufficient amount
4387 of data has been collected. We spend at most 10 ms on each file
4388 (select timeout) and read in non-blocking mode. DEVRANDOM now
4389 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4390 (previously it was just the string "/dev/urandom"), so on typical
4391 platforms the 10 ms delay will never occur.
4392 Also separate out the Unix variant to its own file, rand_unix.c.
4393 For VMS, there's a currently-empty rand_vms.c.
4396 *) Move OCSP client related routines to ocsp_cl.c. These
4397 provide utility functions which an application needing
4398 to issue a request to an OCSP responder and analyse the
4399 response will typically need: as opposed to those which an
4400 OCSP responder itself would need which will be added later.
4402 OCSP_request_sign() signs an OCSP request with an API similar
4403 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4404 response. OCSP_response_get1_basic() extracts basic response
4405 from response. OCSP_resp_find_status(): finds and extracts status
4406 information from an OCSP_CERTID structure (which will be created
4407 when the request structure is built). These are built from lower
4408 level functions which work on OCSP_SINGLERESP structures but
4409 wont normally be used unless the application wishes to examine
4410 extensions in the OCSP response for example.
4412 Replace nonce routines with a pair of functions.
4413 OCSP_request_add1_nonce() adds a nonce value and optionally
4414 generates a random value. OCSP_check_nonce() checks the
4415 validity of the nonce in an OCSP response.
4418 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4419 This doesn't copy the supplied OCSP_CERTID and avoids the
4420 need to free up the newly created id. Change return type
4421 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4422 This can then be used to add extensions to the request.
4423 Deleted OCSP_request_new(), since most of its functionality
4424 is now in OCSP_REQUEST_new() (and the case insensitive name
4425 clash) apart from the ability to set the request name which
4426 will be added elsewhere.
4429 *) Update OCSP API. Remove obsolete extensions argument from
4430 various functions. Extensions are now handled using the new
4431 OCSP extension code. New simple OCSP HTTP function which
4432 can be used to send requests and parse the response.
4435 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4436 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4437 uses the special reorder version of SET OF to sort the attributes
4438 and reorder them to match the encoded order. This resolves a long
4439 standing problem: a verify on a PKCS7 structure just after signing
4440 it used to fail because the attribute order did not match the
4441 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4442 it uses the received order. This is necessary to tolerate some broken
4443 software that does not order SET OF. This is handled by encoding
4444 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4445 to produce the required SET OF.
4448 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4449 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4450 files to get correct declarations of the ASN.1 item variables.
4453 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4454 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4455 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4456 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4457 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4458 ASN1_ITEM and no wrapper functions.
4461 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4462 replace the old function pointer based I/O routines. Change most of
4463 the *_d2i_bio() and *_d2i_fp() functions to use these.
4466 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4467 lines, recognice more "algorithms" that can be deselected, and make
4468 it complain about algorithm deselection that isn't recognised.
4471 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4472 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4473 to use new functions. Add NO_ASN1_OLD which can be set to remove
4474 some old style ASN1 functions: this can be used to determine if old
4475 code will still work when these eventually go away.
4478 *) New extension functions for OCSP structures, these follow the
4479 same conventions as certificates and CRLs.
4482 *) New function X509V3_add1_i2d(). This automatically encodes and
4483 adds an extension. Its behaviour can be customised with various
4484 flags to append, replace or delete. Various wrappers added for
4485 certifcates and CRLs.
4488 *) Fix to avoid calling the underlying ASN1 print routine when
4489 an extension cannot be parsed. Correct a typo in the
4490 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4493 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4494 entries for variables.
4497 *) Add functionality to apps/openssl.c for detecting locking
4498 problems: As the program is single-threaded, all we have
4499 to do is register a locking callback using an array for
4500 storing which locks are currently held by the program.
4503 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4504 SSL_get_ex_data_X509_STORE_idx(), which is used in
4505 ssl_verify_cert_chain() and thus can be called at any time
4506 during TLS/SSL handshakes so that thread-safety is essential.
4507 Unfortunately, the ex_data design is not at all suited
4508 for multi-threaded use, so it probably should be abolished.
4511 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4512 [Broadcom, tweaked and integrated by Geoff Thorpe]
4514 *) Move common extension printing code to new function
4515 X509V3_print_extensions(). Reorganise OCSP print routines and
4516 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4519 *) New function X509_signature_print() to remove duplication in some
4523 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4524 set (this was treated exactly the same as SET OF previously). This
4525 is used to reorder the STACK representing the structure to match the
4526 encoding. This will be used to get round a problem where a PKCS7
4527 structure which was signed could not be verified because the STACK
4528 order did not reflect the encoded order.
4531 *) Reimplement the OCSP ASN1 module using the new code.
4534 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4535 for its ASN1 operations. The old style function pointers still exist
4536 for now but they will eventually go away.
4539 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4540 completely replaces the old ASN1 functionality with a table driven
4541 encoder and decoder which interprets an ASN1_ITEM structure describing
4542 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4543 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4544 has also been converted to the new form.
4547 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4548 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4549 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4550 for negative moduli.
4553 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4554 of not touching the result's sign bit.
4557 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4561 *) Changed the LHASH code to use prototypes for callbacks, and created
4562 macros to declare and implement thin (optionally static) functions
4563 that provide type-safety and avoid function pointer casting for the
4564 type-specific callbacks.
4567 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4569 [Veers Staats <staatsvr@asc.hpc.mil>,
4570 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4572 *) Reformat the FAQ so the different questions and answers can be divided
4573 in sections depending on the subject.
4576 *) Have the zlib compression code load ZLIB.DLL dynamically under
4580 *) New function BN_mod_sqrt for computing square roots modulo a prime
4581 (using the probabilistic Tonelli-Shanks algorithm unless
4582 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4583 be handled deterministically).
4584 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4586 *) Make BN_mod_inverse faster by explicitly handling small quotients
4587 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4588 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4591 *) New function BN_kronecker.
4594 *) Fix BN_gcd so that it works on negative inputs; the result is
4595 positive unless both parameters are zero.
4596 Previously something reasonably close to an infinite loop was
4597 possible because numbers could be growing instead of shrinking
4598 in the implementation of Euclid's algorithm.
4601 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4602 sign of the number in question.
4604 Fix BN_is_word(a,w) to work correctly for w == 0.
4606 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4607 because its test if the absolute value of 'a' equals 'w'.
4608 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4609 it exists mostly for use in the implementations of BN_is_zero(),
4610 BN_is_one(), and BN_is_word().
4613 *) New function BN_swap.
4616 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4617 the exponentiation functions are more likely to produce reasonable
4618 results on negative inputs.
4621 *) Change BN_mod_mul so that the result is always non-negative.
4622 Previously, it could be negative if one of the factors was negative;
4623 I don't think anyone really wanted that behaviour.
4626 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4627 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4628 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4629 and add new functions:
4638 BN_mod_lshift1_quick
4642 These functions always generate non-negative results.
4644 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4645 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4647 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4648 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4649 be reduced modulo m.
4650 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4653 The following entry accidentily appeared in the CHANGES file
4654 distributed with OpenSSL 0.9.7. The modifications described in
4655 it do *not* apply to OpenSSL 0.9.7.
4657 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4658 was actually never needed) and in BN_mul(). The removal in BN_mul()
4659 required a small change in bn_mul_part_recursive() and the addition
4660 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4661 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4662 bn_sub_words() and bn_add_words() except they take arrays with
4667 *) In 'openssl passwd', verify passwords read from the terminal
4668 unless the '-salt' option is used (which usually means that
4669 verification would just waste user's time since the resulting
4670 hash is going to be compared with some given password hash)
4671 or the new '-noverify' option is used.
4673 This is an incompatible change, but it does not affect
4674 non-interactive use of 'openssl passwd' (passwords on the command
4675 line, '-stdin' option, '-in ...' option) and thus should not
4679 *) Remove all references to RSAref, since there's no more need for it.
4682 *) Make DSO load along a path given through an environment variable
4683 (SHLIB_PATH) with shl_load().
4686 *) Constify the ENGINE code as a result of BIGNUM constification.
4687 Also constify the RSA code and most things related to it. In a
4688 few places, most notable in the depth of the ASN.1 code, ugly
4689 casts back to non-const were required (to be solved at a later
4693 *) Make it so the openssl application has all engines loaded by default.
4696 *) Constify the BIGNUM routines a little more.
4699 *) Add the following functions:
4701 ENGINE_load_cswift()
4703 ENGINE_load_atalla()
4705 ENGINE_load_builtin_engines()
4707 That way, an application can itself choose if external engines that
4708 are built-in in OpenSSL shall ever be used or not. The benefit is
4709 that applications won't have to be linked with libdl or other dso
4710 libraries unless it's really needed.
4712 Changed 'openssl engine' to load all engines on demand.
4713 Changed the engine header files to avoid the duplication of some
4714 declarations (they differed!).
4717 *) 'openssl engine' can now list capabilities.
4720 *) Better error reporting in 'openssl engine'.
4723 *) Never call load_dh_param(NULL) in s_server.
4726 *) Add engine application. It can currently list engines by name and
4727 identity, and test if they are actually available.
4730 *) Improve RPM specification file by forcing symbolic linking and making
4731 sure the installed documentation is also owned by root.root.
4732 [Damien Miller <djm@mindrot.org>]
4734 *) Give the OpenSSL applications more possibilities to make use of
4735 keys (public as well as private) handled by engines.
4738 *) Add OCSP code that comes from CertCo.
4741 *) Add VMS support for the Rijndael code.
4744 *) Added untested support for Nuron crypto accelerator.
4747 *) Add support for external cryptographic devices. This code was
4748 previously distributed separately as the "engine" branch.
4749 [Geoff Thorpe, Richard Levitte]
4751 *) Rework the filename-translation in the DSO code. It is now possible to
4752 have far greater control over how a "name" is turned into a filename
4753 depending on the operating environment and any oddities about the
4754 different shared library filenames on each system.
4757 *) Support threads on FreeBSD-elf in Configure.
4760 *) Fix for SHA1 assembly problem with MASM: it produces
4761 warnings about corrupt line number information when assembling
4762 with debugging information. This is caused by the overlapping
4764 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4767 NCONF_get_number() has no error checking at all. As a replacement,
4768 NCONF_get_number_e() is defined (_e for "error checking") and is
4769 promoted strongly. The old NCONF_get_number is kept around for
4770 binary backward compatibility.
4771 Make it possible for methods to load from something other than a BIO,
4772 by providing a function pointer that is given a name instead of a BIO.
4773 For example, this could be used to load configuration data from an
4777 *) Fix for non blocking accept BIOs. Added new I/O special reason
4778 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4779 with non blocking I/O was not possible because no retry code was
4780 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4784 *) Added the beginnings of Rijndael support.
4787 *) Fix for bug in DirectoryString mask setting. Add support for
4788 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4789 to allow certificate printing to more controllable, additional
4790 'certopt' option to 'x509' to allow new printing options to be
4794 *) Clean old EAY MD5 hack from e_os.h.
4797 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4799 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4800 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4801 [Joe Orton, Steve Henson]
4803 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4805 *) Fix additional bug revealed by the NISCC test suite:
4807 Stop bug triggering large recursion when presented with
4808 certain ASN.1 tags (CVE-2003-0851)
4811 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4813 *) Fix various bugs revealed by running the NISCC test suite:
4815 Stop out of bounds reads in the ASN1 code when presented with
4816 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4818 If verify callback ignores invalid public key errors don't try to check
4819 certificate signature with the NULL public key.
4823 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4824 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4828 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4829 extra data after the compression methods not only for TLS 1.0
4830 but also for SSL 3.0 (as required by the specification).
4831 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4833 *) Change X509_certificate_type() to mark the key as exported/exportable
4834 when it's 512 *bits* long, not 512 bytes.
4837 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4839 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4840 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4841 a protocol version number mismatch like a decryption error
4842 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4845 *) Turn on RSA blinding by default in the default implementation
4846 to avoid a timing attack. Applications that don't want it can call
4847 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4848 They would be ill-advised to do so in most cases.
4849 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4851 *) Change RSA blinding code so that it works when the PRNG is not
4852 seeded (in this case, the secret RSA exponent is abused as
4853 an unpredictable seed -- if it is not unpredictable, there
4854 is no point in blinding anyway). Make RSA blinding thread-safe
4855 by remembering the creator's thread ID in rsa->blinding and
4856 having all other threads use local one-time blinding factors
4857 (this requires more computation than sharing rsa->blinding, but
4858 avoids excessive locking; and if an RSA object is not shared
4859 between threads, blinding will still be very fast).
4862 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4864 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4865 via timing by performing a MAC computation even if incorrrect
4866 block cipher padding has been found. This is a countermeasure
4867 against active attacks where the attacker has to distinguish
4868 between bad padding and a MAC verification error. (CVE-2003-0078)
4870 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4871 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4872 Martin Vuagnoux (EPFL, Ilion)]
4874 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4876 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4877 memory from it's contents. This is done with a counter that will
4878 place alternating values in each byte. This can be used to solve
4879 two issues: 1) the removal of calls to memset() by highly optimizing
4880 compilers, and 2) cleansing with other values than 0, since those can
4881 be read through on certain media, for example a swap space on disk.
4884 *) Bugfix: client side session caching did not work with external caching,
4885 because the session->cipher setting was not restored when reloading
4886 from the external cache. This problem was masked, when
4887 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4888 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4891 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4892 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4893 [Zeev Lieber <zeev-l@yahoo.com>]
4895 *) Undo an undocumented change introduced in 0.9.6e which caused
4896 repeated calls to OpenSSL_add_all_ciphers() and
4897 OpenSSL_add_all_digests() to be ignored, even after calling
4901 *) Change the default configuration reader to deal with last line not
4902 being properly terminated.
4905 *) Change X509_NAME_cmp() so it applies the special rules on handling
4906 DN values that are of type PrintableString, as well as RDNs of type
4907 emailAddress where the value has the type ia5String.
4908 [stefank@valicert.com via Richard Levitte]
4910 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4911 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4912 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4913 the bitwise-OR of the two for use by the majority of applications
4914 wanting this behaviour, and update the docs. The documented
4915 behaviour and actual behaviour were inconsistent and had been
4916 changing anyway, so this is more a bug-fix than a behavioural
4918 [Geoff Thorpe, diagnosed by Nadav Har'El]
4920 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4921 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4924 *) Fix initialization code race conditions in
4925 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4926 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4927 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4928 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4929 ssl2_get_cipher_by_char(),
4930 ssl3_get_cipher_by_char().
4931 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4933 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4934 the cached sessions are flushed, as the remove_cb() might use ex_data
4935 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4936 (see [openssl.org #212]).
4937 [Geoff Thorpe, Lutz Jaenicke]
4939 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4940 length, instead of the encoding length to d2i_ASN1_OBJECT.
4943 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4945 *) [In 0.9.6g-engine release:]
4946 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4947 [Lynn Gazis <lgazis@rainbow.com>]
4949 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4951 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4952 and get fix the header length calculation.
4953 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4954 Alon Kantor <alonk@checkpoint.com> (and others),
4957 *) Use proper error handling instead of 'assertions' in buffer
4958 overflow checks added in 0.9.6e. This prevents DoS (the
4959 assertions could call abort()).
4960 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4962 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4964 *) Add various sanity checks to asn1_get_length() to reject
4965 the ASN1 length bytes if they exceed sizeof(long), will appear
4966 negative or the content length exceeds the length of the
4968 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4970 *) Fix cipher selection routines: ciphers without encryption had no flags
4971 for the cipher strength set and where therefore not handled correctly
4972 by the selection routines (PR #130).
4975 *) Fix EVP_dsa_sha macro.
4979 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4980 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4981 that was added in OpenSSL 0.9.6d.
4983 As the countermeasure turned out to be incompatible with some
4984 broken SSL implementations, the new option is part of SSL_OP_ALL.
4985 SSL_OP_ALL is usually employed when compatibility with weird SSL
4986 implementations is desired (e.g. '-bugs' option to 's_client' and
4987 's_server'), so the new option is automatically set in many
4991 *) Changes in security patch:
4993 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4994 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4995 Air Force Materiel Command, USAF, under agreement number
4998 *) Add various sanity checks to asn1_get_length() to reject
4999 the ASN1 length bytes if they exceed sizeof(long), will appear
5000 negative or the content length exceeds the length of the
5001 supplied buffer. (CVE-2002-0659)
5002 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5004 *) Assertions for various potential buffer overflows, not known to
5006 [Ben Laurie (CHATS)]
5008 *) Various temporary buffers to hold ASCII versions of integers were
5009 too small for 64 bit platforms. (CVE-2002-0655)
5010 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5012 *) Remote buffer overflow in SSL3 protocol - an attacker could
5013 supply an oversized session ID to a client. (CVE-2002-0656)
5014 [Ben Laurie (CHATS)]
5016 *) Remote buffer overflow in SSL2 protocol - an attacker could
5017 supply an oversized client master key. (CVE-2002-0656)
5018 [Ben Laurie (CHATS)]
5020 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5022 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5023 encoded as NULL) with id-dsa-with-sha1.
5024 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5026 *) Check various X509_...() return values in apps/req.c.
5027 [Nils Larsch <nla@trustcenter.de>]
5029 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5030 an end-of-file condition would erronously be flagged, when the CRLF
5031 was just at the end of a processed block. The bug was discovered when
5032 processing data through a buffering memory BIO handing the data to a
5033 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5034 <ptsekov@syntrex.com> and Nedelcho Stanev.
5037 *) Implement a countermeasure against a vulnerability recently found
5038 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5039 before application data chunks to avoid the use of known IVs
5040 with data potentially chosen by the attacker.
5043 *) Fix length checks in ssl3_get_client_hello().
5046 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5047 to prevent ssl3_read_internal() from incorrectly assuming that
5048 ssl3_read_bytes() found application data while handshake
5049 processing was enabled when in fact s->s3->in_read_app_data was
5050 merely automatically cleared during the initial handshake.
5051 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5053 *) Fix object definitions for Private and Enterprise: they were not
5054 recognized in their shortname (=lowercase) representation. Extend
5055 obj_dat.pl to issue an error when using undefined keywords instead
5056 of silently ignoring the problem (Svenning Sorensen
5057 <sss@sss.dnsalias.net>).
5060 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5061 generators, i.e. generators other than 2 and 5. (Previously, the
5062 code did not properly initialise the 'add' and 'rem' values to
5063 BN_generate_prime().)
5065 In the new general case, we do not insist that 'generator' is
5066 actually a primitive root: This requirement is rather pointless;
5067 a generator of the order-q subgroup is just as good, if not
5071 *) Map new X509 verification errors to alerts. Discovered and submitted by
5072 Tom Wu <tom@arcot.com>.
5075 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5076 returning non-zero before the data has been completely received
5077 when using non-blocking I/O.
5078 [Bodo Moeller; problem pointed out by John Hughes]
5080 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5081 [Ben Laurie, Lutz Jaenicke]
5083 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5084 Yoram Zahavi <YoramZ@gilian.com>).
5087 *) Add information about CygWin 1.3 and on, and preserve proper
5088 configuration for the versions before that.
5089 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5091 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5092 check whether we deal with a copy of a session and do not delete from
5093 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5094 <izhar@checkpoint.com>.
5097 *) Do not store session data into the internal session cache, if it
5098 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5099 flag is set). Proposed by Aslam <aslam@funk.com>.
5102 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5106 *) [In 0.9.6d-engine release:]
5107 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5108 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5110 *) Add the configuration target linux-s390x.
5111 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5113 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5114 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5115 variable as an indication that a ClientHello message has been
5116 received. As the flag value will be lost between multiple
5117 invocations of ssl3_accept when using non-blocking I/O, the
5118 function may not be aware that a handshake has actually taken
5119 place, thus preventing a new session from being added to the
5122 To avoid this problem, we now set s->new_session to 2 instead of
5123 using a local variable.
5124 [Lutz Jaenicke, Bodo Moeller]
5126 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5127 if the SSL_R_LENGTH_MISMATCH error is detected.
5128 [Geoff Thorpe, Bodo Moeller]
5130 *) New 'shared_ldflag' column in Configure platform table.
5133 *) Fix EVP_CIPHER_mode macro.
5134 ["Dan S. Camper" <dan@bti.net>]
5136 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5137 type, we must throw them away by setting rr->length to 0.
5138 [D P Chang <dpc@qualys.com>]
5140 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5142 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5143 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5144 worked incorrectly for those cases where range = 10..._2 and
5145 3*range is two bits longer than range.)
5148 *) Only add signing time to PKCS7 structures if it is not already
5152 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5153 OBJ_ld_ce should be OBJ_id_ce.
5154 Also some ip-pda OIDs in crypto/objects/objects.txt were
5155 incorrect (cf. RFC 3039).
5156 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5158 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5159 returns early because it has nothing to do.
5160 [Andy Schneider <andy.schneider@bjss.co.uk>]
5162 *) [In 0.9.6c-engine release:]
5163 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5164 [Andy Schneider <andy.schneider@bjss.co.uk>]
5166 *) [In 0.9.6c-engine release:]
5167 Add support for Cryptographic Appliance's keyserver technology.
5168 (Use engine 'keyclient')
5169 [Cryptographic Appliances and Geoff Thorpe]
5171 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5172 is called via tools/c89.sh because arguments have to be
5173 rearranged (all '-L' options must appear before the first object
5175 [Richard Shapiro <rshapiro@abinitio.com>]
5177 *) [In 0.9.6c-engine release:]
5178 Add support for Broadcom crypto accelerator cards, backported
5180 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5182 *) [In 0.9.6c-engine release:]
5183 Add support for SureWare crypto accelerator cards from
5184 Baltimore Technologies. (Use engine 'sureware')
5185 [Baltimore Technologies and Mark Cox]
5187 *) [In 0.9.6c-engine release:]
5188 Add support for crypto accelerator cards from Accelerated
5189 Encryption Processing, www.aep.ie. (Use engine 'aep')
5190 [AEP Inc. and Mark Cox]
5192 *) Add a configuration entry for gcc on UnixWare.
5193 [Gary Benson <gbenson@redhat.com>]
5195 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5196 messages are stored in a single piece (fixed-length part and
5197 variable-length part combined) and fix various bugs found on the way.
5200 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5201 instead. BIO_gethostbyname() does not know what timeouts are
5202 appropriate, so entries would stay in cache even when they have
5204 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5206 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5207 faced with a pathologically small ClientHello fragment that does
5208 not contain client_version: Instead of aborting with an error,
5209 simply choose the highest available protocol version (i.e.,
5210 TLS 1.0 unless it is disabled). In practice, ClientHello
5211 messages are never sent like this, but this change gives us
5212 strictly correct behaviour at least for TLS.
5215 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5216 never resets s->method to s->ctx->method when called from within
5217 one of the SSL handshake functions.
5218 [Bodo Moeller; problem pointed out by Niko Baric]
5220 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5221 (sent using the client's version number) if client_version is
5222 smaller than the protocol version in use. Also change
5223 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5224 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5225 the client will at least see that alert.
5228 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5232 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5233 client receives HelloRequest while in a handshake.
5234 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5236 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5237 should end in 'break', not 'goto end' which circuments various
5238 cleanups done in state SSL_ST_OK. But session related stuff
5239 must be disabled for SSL_ST_OK in the case that we just sent a
5242 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5243 before just sending a HelloRequest.
5244 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5246 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5247 reveal whether illegal block cipher padding was found or a MAC
5248 verification error occured. (Neither SSLerr() codes nor alerts
5249 are directly visible to potential attackers, but the information
5250 may leak via logfiles.)
5252 Similar changes are not required for the SSL 2.0 implementation
5253 because the number of padding bytes is sent in clear for SSL 2.0,
5254 and the extra bytes are just ignored. However ssl/s2_pkt.c
5255 failed to verify that the purported number of padding bytes is in
5259 *) Add OpenUNIX-8 support including shared libraries
5260 (Boyd Lynn Gerber <gerberb@zenez.com>).
5263 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5264 'wristwatch attack' using huge encoding parameters (cf.
5265 James H. Manger's CRYPTO 2001 paper). Note that the
5266 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5267 encoding parameters and hence was not vulnerable.
5270 *) BN_sqr() bug fix.
5271 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5273 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5274 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5275 followed by modular reduction.
5276 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5278 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5279 equivalent based on BN_pseudo_rand() instead of BN_rand().
5282 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5283 This function was broken, as the check for a new client hello message
5284 to handle SGC did not allow these large messages.
5285 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5288 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5291 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5292 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5295 *) Rework the configuration and shared library support for Tru64 Unix.
5296 The configuration part makes use of modern compiler features and
5297 still retains old compiler behavior for those that run older versions
5298 of the OS. The shared library support part includes a variant that
5299 uses the RPATH feature, and is available through the special
5300 configuration target "alpha-cc-rpath", which will never be selected
5302 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5304 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5305 with the same message size as in ssl3_get_certificate_request().
5306 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5307 messages might inadvertently be reject as too long.
5308 [Petr Lampa <lampa@fee.vutbr.cz>]
5310 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5313 *) Modified SSL library such that the verify_callback that has been set
5314 specificly for an SSL object with SSL_set_verify() is actually being
5315 used. Before the change, a verify_callback set with this function was
5316 ignored and the verify_callback() set in the SSL_CTX at the time of
5317 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5318 to allow the necessary settings.
5321 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5322 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5323 done automatically (in contradiction to the requirements of the C
5324 standard). This made problems when used from OpenSSH.
5327 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5328 dh->length and always used
5330 BN_rand_range(priv_key, dh->p).
5332 BN_rand_range() is not necessary for Diffie-Hellman, and this
5333 specific range makes Diffie-Hellman unnecessarily inefficient if
5334 dh->length (recommended exponent length) is much smaller than the
5335 length of dh->p. We could use BN_rand_range() if the order of
5336 the subgroup was stored in the DH structure, but we only have
5341 BN_rand(priv_key, l, ...)
5343 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5349 RSA_eay_public_encrypt
5350 RSA_eay_private_decrypt
5351 RSA_eay_private_encrypt (signing)
5352 RSA_eay_public_decrypt (signature verification)
5354 (default implementations for RSA_public_encrypt,
5355 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5356 always reject numbers >= n.
5359 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5360 to synchronize access to 'locking_thread'. This is necessary on
5361 systems where access to 'locking_thread' (an 'unsigned long'
5362 variable) is not atomic.
5365 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5366 *before* setting the 'crypto_lock_rand' flag. The previous code had
5367 a race condition if 0 is a valid thread ID.
5368 [Travis Vitek <vitek@roguewave.com>]
5370 *) Add support for shared libraries under Irix.
5371 [Albert Chin-A-Young <china@thewrittenword.com>]
5373 *) Add configuration option to build on Linux on both big-endian and
5375 [Ralf Baechle <ralf@uni-koblenz.de>]
5377 *) Add the possibility to create shared libraries on HP-UX.
5380 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5382 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5383 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5384 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5385 PRNG state recovery was possible based on the output of
5386 one PRNG request appropriately sized to gain knowledge on
5387 'md' followed by enough consecutive 1-byte PRNG requests
5388 to traverse all of 'state'.
5390 1. When updating 'md_local' (the current thread's copy of 'md')
5391 during PRNG output generation, hash all of the previous
5392 'md_local' value, not just the half used for PRNG output.
5394 2. Make the number of bytes from 'state' included into the hash
5395 independent from the number of PRNG bytes requested.
5397 The first measure alone would be sufficient to avoid
5398 Markku-Juhani's attack. (Actually it had never occurred
5399 to me that the half of 'md_local' used for chaining was the
5400 half from which PRNG output bytes were taken -- I had always
5401 assumed that the secret half would be used.) The second
5402 measure makes sure that additional data from 'state' is never
5403 mixed into 'md_local' in small portions; this heuristically
5404 further strengthens the PRNG.
5407 *) Fix crypto/bn/asm/mips3.s.
5410 *) When only the key is given to "enc", the IV is undefined. Print out
5411 an error message in this case.
5414 *) Handle special case when X509_NAME is empty in X509 printing routines.
5417 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5418 positive and less than q.
5421 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5422 used: it isn't thread safe and the add_lock_callback should handle
5424 [Paul Rose <Paul.Rose@bridge.com>]
5426 *) Verify that incoming data obeys the block size in
5427 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5431 [Ulf Möller, Bodo Möller]
5433 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5434 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5435 when fixing the server behaviour for backwards-compatible 'client
5436 hello' messages. (Note that the attack is impractical against
5437 SSL 3.0 and TLS 1.0 anyway because length and version checking
5438 means that the probability of guessing a valid ciphertext is
5439 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5442 Before 0.9.5, the countermeasure (hide the error by generating a
5443 random 'decryption result') did not work properly because
5444 ERR_clear_error() was missing, meaning that SSL_get_error() would
5445 detect the supposedly ignored error.
5447 Both problems are now fixed.
5450 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5451 (previously it was 1024).
5454 *) Fix for compatibility mode trust settings: ignore trust settings
5455 unless some valid trust or reject settings are present.
5458 *) Fix for blowfish EVP: its a variable length cipher.
5461 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5462 parameters in DSA public key structures and return an error in the
5463 DSA routines if parameters are absent.
5466 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5467 in the current directory if neither $RANDFILE nor $HOME was set.
5468 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5469 caused some confusion to Windows users who haven't defined $HOME.
5470 Thus RAND_file_name() is changed again: e_os.h can define a
5471 DEFAULT_HOME, which will be used if $HOME is not set.
5472 For Windows, we use "C:"; on other platforms, we still require
5473 environment variables.
5475 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5476 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5477 having multiple threads call RAND_poll() concurrently.
5480 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5481 combination of a flag and a thread ID variable.
5482 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5483 flag), *other* threads can enter ssleay_add_bytes without obeying
5484 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5485 that they do not hold after the first thread unsets add_do_not_lock).
5488 *) Change bctest again: '-x' expressions are not available in all
5492 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5494 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5495 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5497 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5498 the default extension for executables, if any. Also, make the perl
5499 scripts that use symlink() to test if it really exists and use "cp"
5500 if it doesn't. All this made OpenSSL compilable and installable in
5504 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5505 If SEQUENCE is length is indefinite just set c->slen to the total
5506 amount of data available.
5507 [Steve Henson, reported by shige@FreeBSD.org]
5508 [This change does not apply to 0.9.7.]
5510 *) Change bctest to avoid here-documents inside command substitution
5511 (workaround for FreeBSD /bin/sh bug).
5512 For compatibility with Ultrix, avoid shell functions (introduced
5513 in the bctest version that searches along $PATH).
5516 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5517 with des_encrypt() defined on some operating systems, like Solaris
5521 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5522 On the Importance of Eliminating Errors in Cryptographic
5523 Computations, J. Cryptology 14 (2001) 2, 101-119,
5524 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5527 *) MIPS assembler BIGNUM division bug fix.
5530 *) Disabled incorrect Alpha assembler code.
5533 *) Fix PKCS#7 decode routines so they correctly update the length
5534 after reading an EOC for the EXPLICIT tag.
5536 [This change does not apply to 0.9.7.]
5538 *) Fix bug in PKCS#12 key generation routines. This was triggered
5539 if a 3DES key was generated with a 0 initial byte. Include
5540 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5541 (but broken) behaviour.
5544 *) Enhance bctest to search for a working bc along $PATH and print
5546 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5548 *) Fix memory leaks in err.c: free err_data string if necessary;
5549 don't write to the wrong index in ERR_set_error_data.
5552 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5556 *) Replace rdtsc with _emit statements for VC++ version 5.
5557 [Jeremy Cooper <jeremy@baymoo.org>]
5559 *) Make it possible to reuse SSLv2 sessions.
5562 *) In copy_email() check for >= 0 as a return value for
5563 X509_NAME_get_index_by_NID() since 0 is a valid index.
5564 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5566 *) Avoid coredump with unsupported or invalid public keys by checking if
5567 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5568 PKCS7_verify() fails with non detached data.
5571 *) Don't use getenv in library functions when run as setuid/setgid.
5572 New function OPENSSL_issetugid().
5575 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5576 due to incorrect handling of multi-threading:
5578 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5580 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5582 3. Count how many times MemCheck_off() has been called so that
5583 nested use can be treated correctly. This also avoids
5584 inband-signalling in the previous code (which relied on the
5585 assumption that thread ID 0 is impossible).
5588 *) Add "-rand" option also to s_client and s_server.
5591 *) Fix CPU detection on Irix 6.x.
5592 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5593 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5595 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5598 [This change does not apply to 0.9.7.]
5600 *) Use the cached encoding of an X509_NAME structure rather than
5601 copying it. This is apparently the reason for the libsafe "errors"
5602 but the code is actually correct.
5605 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5606 Bleichenbacher's DSA attack.
5607 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5608 to be set and top=0 forces the highest bit to be set; top=-1 is new
5609 and leaves the highest bit random.
5610 [Ulf Moeller, Bodo Moeller]
5612 *) In the NCONF_...-based implementations for CONF_... queries
5613 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5614 a temporary CONF structure with the data component set to NULL
5615 (which gives segmentation faults in lh_retrieve).
5616 Instead, use NULL for the CONF pointer in CONF_get_string and
5617 CONF_get_number (which may use environment variables) and directly
5618 return NULL from CONF_get_section.
5621 *) Fix potential buffer overrun for EBCDIC.
5624 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5625 keyUsage if basicConstraints absent for a CA.
5628 *) Make SMIME_write_PKCS7() write mail header values with a format that
5629 is more generally accepted (no spaces before the semicolon), since
5630 some programs can't parse those values properly otherwise. Also make
5631 sure BIO's that break lines after each write do not create invalid
5635 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5636 macros previously used would not encode an empty SEQUENCE OF
5637 and break the signature.
5639 [This change does not apply to 0.9.7.]
5641 *) Zero the premaster secret after deriving the master secret in
5645 *) Add some EVP_add_digest_alias registrations (as found in
5646 OpenSSL_add_all_digests()) to SSL_library_init()
5647 aka OpenSSL_add_ssl_algorithms(). This provides improved
5648 compatibility with peers using X.509 certificates
5649 with unconventional AlgorithmIdentifier OIDs.
5652 *) Fix for Irix with NO_ASM.
5653 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5655 *) ./config script fixes.
5656 [Ulf Moeller, Richard Levitte]
5658 *) Fix 'openssl passwd -1'.
5661 *) Change PKCS12_key_gen_asc() so it can cope with non null
5662 terminated strings whose length is passed in the passlen
5663 parameter, for example from PEM callbacks. This was done
5664 by adding an extra length parameter to asc2uni().
5665 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5667 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5668 call failed, free the DSA structure.
5671 *) Fix to uni2asc() to cope with zero length Unicode strings.
5672 These are present in some PKCS#12 files.
5675 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5676 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5677 when writing a 32767 byte record.
5678 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5680 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5681 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5683 (RSA objects have a reference count access to which is protected
5684 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5685 so they are meant to be shared between threads.)
5686 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5687 "Reddie, Steven" <Steven.Reddie@ca.com>]
5689 *) Fix a deadlock in CRYPTO_mem_leaks().
5692 *) Use better test patterns in bntest.
5695 *) rand_win.c fix for Borland C.
5698 *) BN_rshift bugfix for n == 0.
5701 *) Add a 'bctest' script that checks for some known 'bc' bugs
5702 so that 'make test' does not abort just because 'bc' is broken.
5705 *) Store verify_result within SSL_SESSION also for client side to
5706 avoid potential security hole. (Re-used sessions on the client side
5707 always resulted in verify_result==X509_V_OK, not using the original
5708 result of the server certificate verification.)
5711 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5712 SSL3_RT_APPLICATION_DATA, return 0.
5713 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5717 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5718 releases, have been re-implemented by renaming the previous
5719 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5720 and ssl3_read_internal, respectively, and adding 'peek' parameters
5721 to them. The new ssl[23]_{read,peek} functions are calls to
5722 ssl[23]_read_internal with the 'peek' flag set appropriately.
5723 A 'peek' parameter has also been added to ssl3_read_bytes, which
5724 does the actual work for ssl3_read_internal.
5727 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5728 the method-specific "init()" handler. Also clean up ex_data after
5729 calling the method-specific "finish()" handler. Previously, this was
5730 happening the other way round.
5733 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5734 The previous value, 12, was not always sufficient for BN_mod_exp().
5737 *) Make sure that shared libraries get the internal name engine with
5738 the full version number and not just 0. This should mark the
5739 shared libraries as not backward compatible. Of course, this should
5740 be changed again when we can guarantee backward binary compatibility.
5743 *) Fix typo in get_cert_by_subject() in by_dir.c
5744 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5746 *) Rework the system to generate shared libraries:
5748 - Make note of the expected extension for the shared libraries and
5749 if there is a need for symbolic links from for example libcrypto.so.0
5750 to libcrypto.so.0.9.7. There is extended info in Configure for
5753 - Make as few rebuilds of the shared libraries as possible.
5755 - Still avoid linking the OpenSSL programs with the shared libraries.
5757 - When installing, install the shared libraries separately from the
5761 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5763 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5764 and not in SSL_clear because the latter is also used by the
5765 accept/connect functions; previously, the settings made by
5766 SSL_set_read_ahead would be lost during the handshake.
5767 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5769 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5770 Previously, it would create entries for disableed algorithms no
5774 *) Added several new manual pages for SSL_* function.
5777 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5779 *) In ssl23_get_client_hello, generate an error message when faced
5780 with an initial SSL 3.0/TLS record that is too small to contain the
5781 first two bytes of the ClientHello message, i.e. client_version.
5782 (Note that this is a pathologic case that probably has never happened
5783 in real life.) The previous approach was to use the version number
5784 from the record header as a substitute; but our protocol choice
5785 should not depend on that one because it is not authenticated
5786 by the Finished messages.
5789 *) More robust randomness gathering functions for Windows.
5790 [Jeffrey Altman <jaltman@columbia.edu>]
5792 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5793 not set then we don't setup the error code for issuer check errors
5794 to avoid possibly overwriting other errors which the callback does
5795 handle. If an application does set the flag then we assume it knows
5796 what it is doing and can handle the new informational codes
5800 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5801 a general "ANY" type, as such it should be able to decode anything
5802 including tagged types. However it didn't check the class so it would
5803 wrongly interpret tagged types in the same way as their universal
5804 counterpart and unknown types were just rejected. Changed so that the
5805 tagged and unknown types are handled in the same way as a SEQUENCE:
5806 that is the encoding is stored intact. There is also a new type
5807 "V_ASN1_OTHER" which is used when the class is not universal, in this
5808 case we have no idea what the actual type is so we just lump them all
5812 *) On VMS, stdout may very well lead to a file that is written to
5813 in a record-oriented fashion. That means that every write() will
5814 write a separate record, which will be read separately by the
5815 programs trying to read from it. This can be very confusing.
5817 The solution is to put a BIO filter in the way that will buffer
5818 text until a linefeed is reached, and then write everything a
5819 line at a time, so every record written will be an actual line,
5820 not chunks of lines and not (usually doesn't happen, but I've
5821 seen it once) several lines in one record. BIO_f_linebuffer() is
5824 Currently, it's a VMS-only method, because that's where it has
5825 been tested well enough.
5828 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5829 it can return incorrect results.
5830 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5831 but it was in 0.9.6-beta[12].)
5834 *) Disable the check for content being present when verifying detached
5835 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5836 include zero length content when signing messages.
5839 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5840 BIO_ctrl (for BIO pairs).
5843 *) Add DSO method for VMS.
5846 *) Bug fix: Montgomery multiplication could produce results with the
5850 *) Add RPM specification openssl.spec and modify it to build three
5851 packages. The default package contains applications, application
5852 documentation and run-time libraries. The devel package contains
5853 include files, static libraries and function documentation. The
5854 doc package contains the contents of the doc directory. The original
5855 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5858 *) Add a large number of documentation files for many SSL routines.
5859 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5861 *) Add a configuration entry for Sony News 4.
5862 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5864 *) Don't set the two most significant bits to one when generating a
5865 random number < q in the DSA library.
5868 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5869 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5870 the underlying transport is blocking) if a handshake took place.
5871 (The default behaviour is needed by applications such as s_client
5872 and s_server that use select() to determine when to use SSL_read;
5873 but for applications that know in advance when to expect data, it
5874 just makes things more complicated.)
5877 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5881 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5882 work better on such systems.
5883 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5885 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5886 Update PKCS12_parse() so it copies the friendlyName and the
5887 keyid to the certificates aux info.
5890 *) Fix bug in PKCS7_verify() which caused an infinite loop
5891 if there was more than one signature.
5892 [Sven Uszpelkat <su@celocom.de>]
5894 *) Major change in util/mkdef.pl to include extra information
5895 about each symbol, as well as presentig variables as well
5896 as functions. This change means that there's n more need
5897 to rebuild the .num files when some algorithms are excluded.
5900 *) Allow the verify time to be set by an application,
5901 rather than always using the current time.
5904 *) Phase 2 verify code reorganisation. The certificate
5905 verify code now looks up an issuer certificate by a
5906 number of criteria: subject name, authority key id
5907 and key usage. It also verifies self signed certificates
5908 by the same criteria. The main comparison function is
5909 X509_check_issued() which performs these checks.
5911 Lot of changes were necessary in order to support this
5912 without completely rewriting the lookup code.
5914 Authority and subject key identifier are now cached.
5916 The LHASH 'certs' is X509_STORE has now been replaced
5917 by a STACK_OF(X509_OBJECT). This is mainly because an
5918 LHASH can't store or retrieve multiple objects with
5919 the same hash value.
5921 As a result various functions (which were all internal
5922 use only) have changed to handle the new X509_STORE
5923 structure. This will break anything that messed round
5924 with X509_STORE internally.
5926 The functions X509_STORE_add_cert() now checks for an
5927 exact match, rather than just subject name.
5929 The X509_STORE API doesn't directly support the retrieval
5930 of multiple certificates matching a given criteria, however
5931 this can be worked round by performing a lookup first
5932 (which will fill the cache with candidate certificates)
5933 and then examining the cache for matches. This is probably
5934 the best we can do without throwing out X509_LOOKUP
5935 entirely (maybe later...).
5937 The X509_VERIFY_CTX structure has been enhanced considerably.
5939 All certificate lookup operations now go via a get_issuer()
5940 callback. Although this currently uses an X509_STORE it
5941 can be replaced by custom lookups. This is a simple way
5942 to bypass the X509_STORE hackery necessary to make this
5943 work and makes it possible to use more efficient techniques
5944 in future. A very simple version which uses a simple
5945 STACK for its trusted certificate store is also provided
5946 using X509_STORE_CTX_trusted_stack().
5948 The verify_cb() and verify() callbacks now have equivalents
5949 in the X509_STORE_CTX structure.
5951 X509_STORE_CTX also has a 'flags' field which can be used
5952 to customise the verify behaviour.
5955 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5956 excludes S/MIME capabilities.
5959 *) When a certificate request is read in keep a copy of the
5960 original encoding of the signed data and use it when outputing
5961 again. Signatures then use the original encoding rather than
5962 a decoded, encoded version which may cause problems if the
5963 request is improperly encoded.
5966 *) For consistency with other BIO_puts implementations, call
5967 buffer_write(b, ...) directly in buffer_puts instead of calling
5970 In BIO_puts, increment b->num_write as in BIO_write.
5971 [Peter.Sylvester@EdelWeb.fr]
5973 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5974 BN_zero, we may not return a BIGNUM with an array consisting of
5978 *) Avoid calling abort() from within the library when problems are
5979 detected, except if preprocessor symbols have been defined
5980 (such as REF_CHECK, BN_DEBUG etc.).
5983 *) New openssl application 'rsautl'. This utility can be
5984 used for low level RSA operations. DER public key
5985 BIO/fp routines also added.
5988 *) New Configure entry and patches for compiling on QNX 4.
5989 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5991 *) A demo state-machine implementation was sponsored by
5992 Nuron (http://www.nuron.com/) and is now available in
5993 demos/state_machine.
5996 *) New options added to the 'dgst' utility for signature
5997 generation and verification.
6000 *) Unrecognized PKCS#7 content types are now handled via a
6001 catch all ASN1_TYPE structure. This allows unsupported
6002 types to be stored as a "blob" and an application can
6003 encode and decode it manually.
6006 *) Fix various signed/unsigned issues to make a_strex.c
6008 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6010 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6011 length if passed a buffer. ASN1_INTEGER_to_BN failed
6012 if passed a NULL BN and its argument was negative.
6013 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6015 *) Modification to PKCS#7 encoding routines to output definite
6016 length encoding. Since currently the whole structures are in
6017 memory there's not real point in using indefinite length
6018 constructed encoding. However if OpenSSL is compiled with
6019 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6022 *) Added BIO_vprintf() and BIO_vsnprintf().
6025 *) Added more prefixes to parse for in the the strings written
6026 through a logging bio, to cover all the levels that are available
6027 through syslog. The prefixes are now:
6029 PANIC, EMERG, EMR => LOG_EMERG
6030 ALERT, ALR => LOG_ALERT
6031 CRIT, CRI => LOG_CRIT
6032 ERROR, ERR => LOG_ERR
6033 WARNING, WARN, WAR => LOG_WARNING
6034 NOTICE, NOTE, NOT => LOG_NOTICE
6035 INFO, INF => LOG_INFO
6036 DEBUG, DBG => LOG_DEBUG
6038 and as before, if none of those prefixes are present at the
6039 beginning of the string, LOG_ERR is chosen.
6041 On Win32, the LOG_* levels are mapped according to this:
6043 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6044 LOG_WARNING => EVENTLOG_WARNING_TYPE
6045 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6049 *) Made it possible to reconfigure with just the configuration
6050 argument "reconf" or "reconfigure". The command line arguments
6051 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6052 and are retrieved from there when reconfiguring.
6056 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6058 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6061 *) The obj_dat.pl script was messing up the sorting of object
6062 names. The reason was that it compared the quoted version
6063 of strings as a result "OCSP" > "OCSP Signing" because
6064 " > SPACE. Changed script to store unquoted versions of
6065 names and add quotes on output. It was also omitting some
6066 names from the lookup table if they were given a default
6067 value (that is if SN is missing it is given the same
6068 value as LN and vice versa), these are now added on the
6069 grounds that if an object has a name we should be able to
6070 look it up. Finally added warning output when duplicate
6071 short or long names are found.
6074 *) Changes needed for Tandem NSK.
6075 [Scott Uroff <scott@xypro.com>]
6077 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6078 RSA_padding_check_SSLv23(), special padding was never detected
6079 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6080 version rollback attacks was not effective.
6082 In s23_clnt.c, don't use special rollback-attack detection padding
6083 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6084 client; similarly, in s23_srvr.c, don't do the rollback check if
6085 SSL 2.0 is the only protocol enabled in the server.
6088 *) Make it possible to get hexdumps of unprintable data with 'openssl
6089 asn1parse'. By implication, the functions ASN1_parse_dump() and
6090 BIO_dump_indent() are added.
6093 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6094 these print out strings and name structures based on various
6095 flags including RFC2253 support and proper handling of
6096 multibyte characters. Added options to the 'x509' utility
6097 to allow the various flags to be set.
6100 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6101 Also change the functions X509_cmp_current_time() and
6102 X509_gmtime_adj() work with an ASN1_TIME structure,
6103 this will enable certificates using GeneralizedTime in validity
6104 dates to be checked.
6107 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6108 negative public key encodings) on by default,
6109 NO_NEG_PUBKEY_BUG can be set to disable it.
6112 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6113 content octets. An i2c_ASN1_OBJECT is unnecessary because
6114 the encoding can be trivially obtained from the structure.
6117 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6118 not read locks (CRYPTO_r_[un]lock).
6121 *) A first attempt at creating official support for shared
6122 libraries through configuration. I've kept it so the
6123 default is static libraries only, and the OpenSSL programs
6124 are always statically linked for now, but there are
6125 preparations for dynamic linking in place.
6126 This has been tested on Linux and Tru64.
6129 *) Randomness polling function for Win9x, as described in:
6130 Peter Gutmann, Software Generation of Practically Strong
6134 *) Fix so PRNG is seeded in req if using an already existing
6138 *) New options to smime application. -inform and -outform
6139 allow alternative formats for the S/MIME message including
6140 PEM and DER. The -content option allows the content to be
6141 specified separately. This should allow things like Netscape
6142 form signing output easier to verify.
6145 *) Fix the ASN1 encoding of tags using the 'long form'.
6148 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6149 STRING types. These convert content octets to and from the
6150 underlying type. The actual tag and length octets are
6151 already assumed to have been read in and checked. These
6152 are needed because all other string types have virtually
6153 identical handling apart from the tag. By having versions
6154 of the ASN1 functions that just operate on content octets
6155 IMPLICIT tagging can be handled properly. It also allows
6156 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6157 and ASN1_INTEGER are identical apart from the tag.
6160 *) Change the handling of OID objects as follows:
6162 - New object identifiers are inserted in objects.txt, following
6163 the syntax given in objects.README.
6164 - objects.pl is used to process obj_mac.num and create a new
6166 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6169 This is currently kind of a hack, and the perl code in objects.pl
6170 isn't very elegant, but it works as I intended. The simplest way
6171 to check that it worked correctly is to look in obj_dat.h and
6172 check the array nid_objs and make sure the objects haven't moved
6173 around (this is important!). Additions are OK, as well as
6174 consistent name changes.
6177 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6180 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6181 The given file adds to whatever has already been seeded into the
6182 random pool through the RANDFILE configuration file option or
6183 environment variable, or the default random state file.
6186 *) mkstack.pl now sorts each macro group into lexical order.
6187 Previously the output order depended on the order the files
6188 appeared in the directory, resulting in needless rewriting
6192 *) Patches to make OpenSSL compile under Win32 again. Mostly
6193 work arounds for the VC++ problem that it treats func() as
6194 func(void). Also stripped out the parts of mkdef.pl that
6195 added extra typesafe functions: these no longer exist.
6198 *) Reorganisation of the stack code. The macros are now all
6199 collected in safestack.h . Each macro is defined in terms of
6200 a "stack macro" of the form SKM_<name>(type, a, b). The
6201 DEBUG_SAFESTACK is now handled in terms of function casts,
6202 this has the advantage of retaining type safety without the
6203 use of additional functions. If DEBUG_SAFESTACK is not defined
6204 then the non typesafe macros are used instead. Also modified the
6205 mkstack.pl script to handle the new form. Needs testing to see
6206 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6207 the default if no major problems. Similar behaviour for ASN1_SET_OF
6208 and PKCS12_STACK_OF.
6211 *) When some versions of IIS use the 'NET' form of private key the
6212 key derivation algorithm is different. Normally MD5(password) is
6213 used as a 128 bit RC4 key. In the modified case
6214 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6215 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6216 as the old Netscape_RSA functions except they have an additional
6217 'sgckey' parameter which uses the modified algorithm. Also added
6218 an -sgckey command line option to the rsa utility. Thanks to
6219 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6220 algorithm to openssl-dev.
6223 *) The evp_local.h macros were using 'c.##kname' which resulted in
6224 invalid expansion on some systems (SCO 5.0.5 for example).
6225 Corrected to 'c.kname'.
6226 [Phillip Porch <root@theporch.com>]
6228 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6229 a STACK of email addresses from a certificate or request, these look
6230 in the subject name and the subject alternative name extensions and
6231 omit any duplicate addresses.
6234 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6235 This makes DSA verification about 2 % faster.
6238 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6239 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6240 plus overhead for 1024 bit moduli).
6241 This makes exponentiations about 0.5 % faster for 1024 bit
6242 exponents (as measured by "openssl speed rsa2048").
6245 *) Rename memory handling macros to avoid conflicts with other
6247 Malloc => OPENSSL_malloc
6248 Malloc_locked => OPENSSL_malloc_locked
6249 Realloc => OPENSSL_realloc
6250 Free => OPENSSL_free
6253 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6254 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6257 *) CygWin32 support.
6258 [John Jarvie <jjarvie@newsguy.com>]
6260 *) The type-safe stack code has been rejigged. It is now only compiled
6261 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6262 by default all type-specific stack functions are "#define"d back to
6263 standard stack functions. This results in more streamlined output
6264 but retains the type-safety checking possibilities of the original
6268 *) The STACK code has been cleaned up, and certain type declarations
6269 that didn't make a lot of sense have been brought in line. This has
6270 also involved a cleanup of sorts in safestack.h to more correctly
6271 map type-safe stack functions onto their plain stack counterparts.
6272 This work has also resulted in a variety of "const"ifications of
6273 lots of the code, especially "_cmp" operations which should normally
6274 be prototyped with "const" parameters anyway.
6277 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6278 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6279 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6280 where all of 'md' is used each time the PRNG is used, but 'state'
6281 is used only indexed by a cyclic counter. As entropy may not be
6282 well distributed from the beginning, 'md' is important as a
6283 chaining variable. However, the output function chains only half
6284 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6285 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6286 in all of 'state' being rewritten, with the new values depending
6287 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6290 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6291 the handshake is continued after ssl_verify_cert_chain();
6292 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6293 can lead to 'unexplainable' connection aborts later.
6294 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6296 *) Major EVP API cipher revision.
6297 Add hooks for extra EVP features. This allows various cipher
6298 parameters to be set in the EVP interface. Support added for variable
6299 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6300 setting of RC2 and RC5 parameters.
6302 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6305 Remove lots of duplicated code from the EVP library. For example *every*
6306 cipher init() function handles the 'iv' in the same way according to the
6307 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6308 for CFB and OFB modes they zero ctx->num.
6310 New functionality allows removal of S/MIME code RC2 hack.
6312 Most of the routines have the same form and so can be declared in terms
6315 By shifting this to the top level EVP_CipherInit() it can be removed from
6316 all individual ciphers. If the cipher wants to handle IVs or keys
6317 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6320 Change lots of functions like EVP_EncryptUpdate() to now return a
6321 value: although software versions of the algorithms cannot fail
6322 any installed hardware versions can.
6325 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6326 this option is set, tolerate broken clients that send the negotiated
6327 protocol version number instead of the requested protocol version
6331 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6332 i.e. non-zero for export ciphersuites, zero otherwise.
6333 Previous versions had this flag inverted, inconsistent with
6334 rsa_tmp_cb (..._TMP_RSA_CB).
6335 [Bodo Moeller; problem reported by Amit Chopra]
6337 *) Add missing DSA library text string. Work around for some IIS
6338 key files with invalid SEQUENCE encoding.
6341 *) Add a document (doc/standards.txt) that list all kinds of standards
6342 and so on that are implemented in OpenSSL.
6345 *) Enhance c_rehash script. Old version would mishandle certificates
6346 with the same subject name hash and wouldn't handle CRLs at all.
6347 Added -fingerprint option to crl utility, to support new c_rehash
6351 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6354 *) Fix for SSL server purpose checking. Server checking was
6355 rejecting certificates which had extended key usage present
6356 but no ssl client purpose.
6357 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6359 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6360 is a little unclear about how a blank password is handled.
6361 Since the password in encoded as a BMPString with terminating
6362 double NULL a zero length password would end up as just the
6363 double NULL. However no password at all is different and is
6364 handled differently in the PKCS#12 key generation code. NS
6365 treats a blank password as zero length. MSIE treats it as no
6366 password on export: but it will try both on import. We now do
6367 the same: PKCS12_parse() tries zero length and no password if
6368 the password is set to "" or NULL (NULL is now a valid password:
6369 it wasn't before) as does the pkcs12 application.
6372 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6373 perror when PEM_read_bio_X509_REQ fails, the error message must
6374 be obtained from the error queue.
6377 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6378 it in ERR_remove_state if appropriate, and change ERR_get_state
6379 accordingly to avoid race conditions (this is necessary because
6380 thread_hash is no longer constant once set).
6383 *) Bugfix for linux-elf makefile.one.
6386 *) RSA_get_default_method() will now cause a default
6387 RSA_METHOD to be chosen if one doesn't exist already.
6388 Previously this was only set during a call to RSA_new()
6389 or RSA_new_method(NULL) meaning it was possible for
6390 RSA_get_default_method() to return NULL.
6393 *) Added native name translation to the existing DSO code
6394 that will convert (if the flag to do so is set) filenames
6395 that are sufficiently small and have no path information
6396 into a canonical native form. Eg. "blah" converted to
6397 "libblah.so" or "blah.dll" etc.
6400 *) New function ERR_error_string_n(e, buf, len) which is like
6401 ERR_error_string(e, buf), but writes at most 'len' bytes
6402 including the 0 terminator. For ERR_error_string_n, 'buf'
6404 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6406 *) CONF library reworked to become more general. A new CONF
6407 configuration file reader "class" is implemented as well as a
6408 new functions (NCONF_*, for "New CONF") to handle it. The now
6409 old CONF_* functions are still there, but are reimplemented to
6410 work in terms of the new functions. Also, a set of functions
6411 to handle the internal storage of the configuration data is
6412 provided to make it easier to write new configuration file
6413 reader "classes" (I can definitely see something reading a
6414 configuration file in XML format, for example), called _CONF_*,
6415 or "the configuration storage API"...
6417 The new configuration file reading functions are:
6419 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6420 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6422 NCONF_default, NCONF_WIN32
6424 NCONF_dump_fp, NCONF_dump_bio
6426 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6427 NCONF_new creates a new CONF object. This works in the same way
6428 as other interfaces in OpenSSL, like the BIO interface.
6429 NCONF_dump_* dump the internal storage of the configuration file,
6430 which is useful for debugging. All other functions take the same
6431 arguments as the old CONF_* functions wth the exception of the
6432 first that must be a `CONF *' instead of a `LHASH *'.
6434 To make it easer to use the new classes with the old CONF_* functions,
6435 the function CONF_set_default_method is provided.
6438 *) Add '-tls1' option to 'openssl ciphers', which was already
6439 mentioned in the documentation but had not been implemented.
6440 (This option is not yet really useful because even the additional
6441 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6444 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6445 OpenSSL-based applications) load shared libraries and bind to
6446 them in a portable way.
6447 [Geoff Thorpe, with contributions from Richard Levitte]
6449 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6451 *) Make sure _lrotl and _lrotr are only used with MSVC.
6453 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6454 (the default implementation of RAND_status).
6456 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6457 to '-clrext' (= clear extensions), as intended and documented.
6458 [Bodo Moeller; inconsistency pointed out by Michael Attili
6461 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6462 was larger than the MD block size.
6463 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6465 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6466 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6467 using the passed key: if the passed key was a private key the result
6468 of X509_print(), for example, would be to print out all the private key
6472 *) des_quad_cksum() byte order bug fix.
6473 [Ulf Möller, using the problem description in krb4-0.9.7, where
6474 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6476 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6478 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6480 *) For easily testing in shell scripts whether some command
6481 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6482 returns with exit code 0 iff no command of the given name is available.
6483 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6484 the output goes to stdout and nothing is printed to stderr.
6485 Additional arguments are always ignored.
6487 Since for each cipher there is a command of the same name,
6488 the 'no-cipher' compilation switches can be tested this way.
6490 ('openssl no-XXX' is not able to detect pseudo-commands such
6491 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6494 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6497 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6498 is set; it will be thrown away anyway because each handshake creates
6500 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6501 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6502 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6503 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6506 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6507 'Q' and 'R' lose their special meanings (quit/renegotiate).
6508 This is part of what -quiet does; unlike -quiet, -ign_eof
6509 does not suppress any output.
6512 *) Add compatibility options to the purpose and trust code. The
6513 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6514 accepts a certificate or CA, this was the previous behaviour,
6515 with all the associated security issues.
6517 X509_TRUST_COMPAT is the old trust behaviour: only and
6518 automatically trust self signed roots in certificate store. A
6519 new trust setting X509_TRUST_DEFAULT is used to specify that
6520 a purpose has no associated trust setting and it should instead
6521 use the value in the default purpose.
6524 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6525 and fix a memory leak.
6528 *) In util/mkerr.pl (which implements 'make errors'), preserve
6529 reason strings from the previous version of the .c file, as
6530 the default to have only downcase letters (and digits) in
6531 automatically generated reasons codes is not always appropriate.
6534 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6535 using strerror. Previously, ERR_reason_error_string() returned
6536 library names as reason strings for SYSerr; but SYSerr is a special
6537 case where small numbers are errno values, not library numbers.
6540 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6541 converts DSA parameters into DH parameters. (When creating parameters,
6542 DSA_generate_parameters is used.)
6545 *) Include 'length' (recommended exponent length) in C code generated
6546 by 'openssl dhparam -C'.
6549 *) The second argument to set_label in perlasm was already being used
6550 so couldn't be used as a "file scope" flag. Moved to third argument
6554 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6555 instead of RAND_bytes for encryption IVs and salts.
6558 *) Include RAND_status() into RAND_METHOD instead of implementing
6559 it only for md_rand.c Otherwise replacing the PRNG by calling
6560 RAND_set_rand_method would be impossible.
6563 *) Don't let DSA_generate_key() enter an infinite loop if the random
6564 number generation fails.
6567 *) New 'rand' application for creating pseudo-random output.
6570 *) Added configuration support for Linux/IA64
6571 [Rolf Haberrecker <rolf@suse.de>]
6573 *) Assembler module support for Mingw32.
6576 *) Shared library support for HPUX (in shlib/).
6577 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6579 *) Shared library support for Solaris gcc.
6580 [Lutz Behnke <behnke@trustcenter.de>]
6582 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6584 *) PKCS7_encrypt() was adding text MIME headers twice because they
6585 were added manually and by SMIME_crlf_copy().
6588 *) In bntest.c don't call BN_rand with zero bits argument.
6589 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6591 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6592 case was implemented. This caused BN_div_recp() to fail occasionally.
6595 *) Add an optional second argument to the set_label() in the perl
6596 assembly language builder. If this argument exists and is set
6597 to 1 it signals that the assembler should use a symbol whose
6598 scope is the entire file, not just the current function. This
6599 is needed with MASM which uses the format label:: for this scope.
6600 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6602 *) Change the ASN1 types so they are typedefs by default. Before
6603 almost all types were #define'd to ASN1_STRING which was causing
6604 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6608 *) Change names of new functions to the new get1/get0 naming
6609 convention: After 'get1', the caller owns a reference count
6610 and has to call ..._free; 'get0' returns a pointer to some
6611 data structure without incrementing reference counters.
6612 (Some of the existing 'get' functions increment a reference
6613 counter, some don't.)
6614 Similarly, 'set1' and 'add1' functions increase reference
6615 counters or duplicate objects.
6618 *) Allow for the possibility of temp RSA key generation failure:
6619 the code used to assume it always worked and crashed on failure.
6622 *) Fix potential buffer overrun problem in BIO_printf().
6623 [Ulf Möller, using public domain code by Patrick Powell; problem
6624 pointed out by David Sacerdote <das33@cornell.edu>]
6626 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6627 RAND_egd() and RAND_status(). In the command line application,
6628 the EGD socket can be specified like a seed file using RANDFILE
6632 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6633 Some CAs (e.g. Verisign) distribute certificates in this form.
6636 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6637 list to exclude them. This means that no special compilation option
6638 is needed to use anonymous DH: it just needs to be included in the
6642 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6643 EVP_MD_type. The old functionality is available in a new macro called
6644 EVP_MD_md(). Change code that uses it and update docs.
6647 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6648 where the 'void *' argument is replaced by a function pointer argument.
6649 Previously 'void *' was abused to point to functions, which works on
6650 many platforms, but is not correct. As these functions are usually
6651 called by macros defined in OpenSSL header files, most source code
6652 should work without changes.
6655 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6656 sections with information on -D... compiler switches used for
6657 compiling the library so that applications can see them. To enable
6658 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6659 must be defined. E.g.,
6660 #define OPENSSL_ALGORITHM_DEFINES
6661 #include <openssl/opensslconf.h>
6662 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6663 [Richard Levitte, Ulf and Bodo Möller]
6665 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6669 *) Change the 'other' type in certificate aux info to a STACK_OF
6670 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6671 the required ASN1 format: arbitrary types determined by an OID.
6674 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6675 argument to 'req'. This is not because the function is newer or
6676 better than others it just uses the work 'NEW' in the certificate
6677 request header lines. Some software needs this.
6680 *) Reorganise password command line arguments: now passwords can be
6681 obtained from various sources. Delete the PEM_cb function and make
6682 it the default behaviour: i.e. if the callback is NULL and the
6683 usrdata argument is not NULL interpret it as a null terminated pass
6684 phrase. If usrdata and the callback are NULL then the pass phrase
6685 is prompted for as usual.
6688 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6689 the support is automatically enabled. The resulting binaries will
6690 autodetect the card and use it if present.
6691 [Ben Laurie and Compaq Inc.]
6693 *) Work around for Netscape hang bug. This sends certificate request
6694 and server done in one record. Since this is perfectly legal in the
6695 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6696 the bugs/SSLv3 entry for more info.
6699 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6702 *) Add -rand argument to smime and pkcs12 applications and read/write
6706 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6709 *) Add command line password options to the remaining applications.
6712 *) Bug fix for BN_div_recp() for numerators with an even number of
6716 *) More tests in bntest.c, and changed test_bn output.
6719 *) ./config recognizes MacOS X now.
6722 *) Bug fix for BN_div() when the first words of num and divsor are
6723 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6726 *) Add support for various broken PKCS#8 formats, and command line
6727 options to produce them.
6730 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6731 get temporary BIGNUMs from a BN_CTX.
6734 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6738 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6739 include a #define from the old name to the new. The original intent
6740 was that statically linked binaries could for example just call
6741 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6742 link with digests. This never worked becayse SSLeay_add_all_digests()
6743 and SSLeay_add_all_ciphers() were in the same source file so calling
6744 one would link with the other. They are now in separate source files.
6747 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6750 *) Use a less unusual form of the Miller-Rabin primality test (it used
6751 a binary algorithm for exponentiation integrated into the Miller-Rabin
6752 loop, our standard modexp algorithms are faster).
6755 *) Support for the EBCDIC character set completed.
6756 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6758 *) Source code cleanups: use const where appropriate, eliminate casts,
6759 use void * instead of char * in lhash.
6762 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6763 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6764 this the server could overwrite ephemeral keys that the client
6768 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6769 using 50 iterations of the Rabin-Miller test.
6771 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6772 iterations of the Rabin-Miller test as required by the appendix
6773 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6774 As BN_is_prime_fasttest includes trial division, DSA parameter
6775 generation becomes much faster.
6777 This implies a change for the callback functions in DSA_is_prime
6778 and DSA_generate_parameters: The callback function is called once
6779 for each positive witness in the Rabin-Miller test, not just
6780 occasionally in the inner loop; and the parameters to the
6781 callback function now provide an iteration count for the outer
6782 loop rather than for the current invocation of the inner loop.
6783 DSA_generate_parameters additionally can call the callback
6784 function with an 'iteration count' of -1, meaning that a
6785 candidate has passed the trial division test (when q is generated
6786 from an application-provided seed, trial division is skipped).
6789 *) New function BN_is_prime_fasttest that optionally does trial
6790 division before starting the Rabin-Miller test and has
6791 an additional BN_CTX * argument (whereas BN_is_prime always
6792 has to allocate at least one BN_CTX).
6793 'callback(1, -1, cb_arg)' is called when a number has passed the
6794 trial division stage.
6797 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6801 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6804 *) New function BN_pseudo_rand().
6807 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6808 bignum version of BN_from_montgomery() with the working code from
6809 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6813 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6814 made it impossible to use the same SSL_SESSION data structure in
6815 SSL2 clients in multiple threads.
6818 *) The return value of RAND_load_file() no longer counts bytes obtained
6819 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6820 to seed the PRNG (previously an explicit byte count was required).
6821 [Ulf Möller, Bodo Möller]
6823 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6824 used (char *) instead of (void *) and had casts all over the place.
6827 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6830 *) Retain source code compatibility for BN_prime_checks macro:
6831 BN_is_prime(..., BN_prime_checks, ...) now uses
6832 BN_prime_checks_for_size to determine the appropriate number of
6833 Rabin-Miller iterations.
6836 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6837 DH_CHECK_P_NOT_SAFE_PRIME.
6838 (Check if this is true? OpenPGP calls them "strong".)
6841 *) Merge the functionality of "dh" and "gendh" programs into a new program
6842 "dhparam". The old programs are retained for now but will handle DH keys
6843 (instead of parameters) in future.
6846 *) Make the ciphers, s_server and s_client programs check the return values
6847 when a new cipher list is set.
6850 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6851 ciphers. Before when the 56bit ciphers were enabled the sorting was
6854 The syntax for the cipher sorting has been extended to support sorting by
6855 cipher-strength (using the strength_bits hard coded in the tables).
6856 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6858 Fix a bug in the cipher-command parser: when supplying a cipher command
6859 string with an "undefined" symbol (neither command nor alphanumeric
6860 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6861 an error is flagged.
6863 Due to the strength-sorting extension, the code of the
6864 ssl_create_cipher_list() function was completely rearranged. I hope that
6865 the readability was also increased :-)
6866 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6868 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6869 for the first serial number and places 2 in the serial number file. This
6870 avoids problems when the root CA is created with serial number zero and
6871 the first user certificate has the same issuer name and serial number
6875 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6876 the new code. Add documentation for this stuff.
6879 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6880 X509_*() to X509at_*() on the grounds that they don't handle X509
6881 structures and behave in an analagous way to the X509v3 functions:
6882 they shouldn't be called directly but wrapper functions should be used
6885 So we also now have some wrapper functions that call the X509at functions
6886 when passed certificate requests. (TO DO: similar things can be done with
6887 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6888 things. Some of these need some d2i or i2d and print functionality
6889 because they handle more complex structures.)
6892 *) Add missing #ifndefs that caused missing symbols when building libssl
6893 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6894 NO_RSA in ssl/s2*.c.
6895 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6897 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6898 has a return value which indicates the quality of the random data
6899 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6900 error queue. New function RAND_pseudo_bytes() generates output that is
6901 guaranteed to be unique but not unpredictable. RAND_add is like
6902 RAND_seed, but takes an extra argument for an entropy estimate
6903 (RAND_seed always assumes full entropy).
6906 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6907 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6908 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6909 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6910 false-positive rate of at most 2^-80 for random input.
6913 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6916 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6917 in the 0.9.5 release), this returns the chain
6918 from an X509_CTX structure with a dup of the stack and all
6919 the X509 reference counts upped: so the stack will exist
6920 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6923 Also make SSL_SESSION_print() print out the verify return
6927 *) Add manpage for the pkcs12 command. Also change the default
6928 behaviour so MAC iteration counts are used unless the new
6929 -nomaciter option is used. This improves file security and
6930 only older versions of MSIE (4.0 for example) need it.
6933 *) Honor the no-xxx Configure options when creating .DEF files.
6936 *) Add PKCS#10 attributes to field table: challengePassword,
6937 unstructuredName and unstructuredAddress. These are taken from
6938 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6939 international characters are used.
6941 More changes to X509_ATTRIBUTE code: allow the setting of types
6942 based on strings. Remove the 'loc' parameter when adding
6943 attributes because these will be a SET OF encoding which is sorted
6947 *) Initial changes to the 'req' utility to allow request generation
6948 automation. This will allow an application to just generate a template
6949 file containing all the field values and have req construct the
6952 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6953 used all over the place including certificate requests and PKCS#7
6954 structures. They are currently handled manually where necessary with
6955 some primitive wrappers for PKCS#7. The new functions behave in a
6956 manner analogous to the X509 extension functions: they allow
6957 attributes to be looked up by NID and added.
6959 Later something similar to the X509V3 code would be desirable to
6960 automatically handle the encoding, decoding and printing of the
6961 more complex types. The string types like challengePassword can
6962 be handled by the string table functions.
6964 Also modified the multi byte string table handling. Now there is
6965 a 'global mask' which masks out certain types. The table itself
6966 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6967 is useful when for example there is only one permissible type
6968 (as in countryName) and using the mask might result in no valid
6972 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6973 SSL_get_peer_finished to allow applications to obtain the latest
6974 Finished messages sent to the peer or expected from the peer,
6975 respectively. (SSL_get_peer_finished is usually the Finished message
6976 actually received from the peer, otherwise the protocol will be aborted.)
6978 As the Finished message are message digests of the complete handshake
6979 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6980 be used for external authentication procedures when the authentication
6981 provided by SSL/TLS is not desired or is not enough.
6984 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6985 the host supports BWX extension and if Compaq C is present on the
6986 $PATH. Just exploiting of the BWX extension results in 20-30%
6987 performance kick for some algorithms, e.g. DES and RC4 to mention
6988 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6992 *) Add support for MS "fast SGC". This is arguably a violation of the
6993 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6994 weak crypto and after checking the certificate is SGC a second one
6995 with strong crypto. MS SGC stops the first handshake after receiving
6996 the server certificate message and sends a second client hello. Since
6997 a server will typically do all the time consuming operations before
6998 expecting any further messages from the client (server key exchange
6999 is the most expensive) there is little difference between the two.
7001 To get OpenSSL to support MS SGC we have to permit a second client
7002 hello message after we have sent server done. In addition we have to
7003 reset the MAC if we do get this second client hello.
7006 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7007 if a DER encoded private key is RSA or DSA traditional format. Changed
7008 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7009 format DER encoded private key. Newer code should use PKCS#8 format which
7010 has the key type encoded in the ASN1 structure. Added DER private key
7011 support to pkcs8 application.
7014 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7015 ciphersuites has been selected (as required by the SSL 3/TLS 1
7016 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7017 is set, we interpret this as a request to violate the specification
7018 (the worst that can happen is a handshake failure, and 'correct'
7019 behaviour would result in a handshake failure anyway).
7022 *) In SSL_CTX_add_session, take into account that there might be multiple
7023 SSL_SESSION structures with the same session ID (e.g. when two threads
7024 concurrently obtain them from an external cache).
7025 The internal cache can handle only one SSL_SESSION with a given ID,
7026 so if there's a conflict, we now throw out the old one to achieve
7030 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7031 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7032 some routines that use cipher OIDs: some ciphers do not have OIDs
7033 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7037 *) Simplify the trust setting structure and code. Now we just have
7038 two sequences of OIDs for trusted and rejected settings. These will
7039 typically have values the same as the extended key usage extension
7040 and any application specific purposes.
7042 The trust checking code now has a default behaviour: it will just
7043 check for an object with the same NID as the passed id. Functions can
7044 be provided to override either the default behaviour or the behaviour
7045 for a given id. SSL client, server and email already have functions
7046 in place for compatibility: they check the NID and also return "trusted"
7047 if the certificate is self signed.
7050 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7051 traditional format into an EVP_PKEY structure.
7054 *) Add a password callback function PEM_cb() which either prompts for
7055 a password if usr_data is NULL or otherwise assumes it is a null
7056 terminated password. Allow passwords to be passed on command line
7057 environment or config files in a few more utilities.
7060 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7061 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7062 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7063 Update documentation.
7066 *) Support for ASN1 "NULL" type. This could be handled before by using
7067 ASN1_TYPE but there wasn't any function that would try to read a NULL
7068 and produce an error if it couldn't. For compatibility we also have
7069 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7070 don't allocate anything because they don't need to.
7073 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7075 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7077 *) Rebuild of the memory allocation routines used by OpenSSL code and
7078 possibly others as well. The purpose is to make an interface that
7079 provide hooks so anyone can build a separate set of allocation and
7080 deallocation routines to be used by OpenSSL, for example memory
7081 pool implementations, or something else, which was previously hard
7082 since Malloc(), Realloc() and Free() were defined as macros having
7083 the values malloc, realloc and free, respectively (except for Win32
7084 compilations). The same is provided for memory debugging code.
7085 OpenSSL already comes with functionality to find memory leaks, but
7086 this gives people a chance to debug other memory problems.
7088 With these changes, a new set of functions and macros have appeared:
7090 CRYPTO_set_mem_debug_functions() [F]
7091 CRYPTO_get_mem_debug_functions() [F]
7092 CRYPTO_dbg_set_options() [F]
7093 CRYPTO_dbg_get_options() [F]
7094 CRYPTO_malloc_debug_init() [M]
7096 The memory debug functions are NULL by default, unless the library
7097 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7098 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7099 gives the standard debugging functions that come with OpenSSL) or
7100 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7101 provided by the library user) must be used. When the standard
7102 debugging functions are used, CRYPTO_dbg_set_options can be used to
7103 request additional information:
7104 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7105 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7107 Also, things like CRYPTO_set_mem_functions will always give the
7108 expected result (the new set of functions is used for allocation
7109 and deallocation) at all times, regardless of platform and compiler
7112 To finish it up, some functions that were never use in any other
7113 way than through macros have a new API and new semantic:
7116 CRYPTO_dbg_realloc()
7119 All macros of value have retained their old syntax.
7120 [Richard Levitte and Bodo Moeller]
7122 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7123 ordering of SMIMECapabilities wasn't in "strength order" and there
7124 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7128 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7129 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7130 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7132 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7133 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7134 functionality to handle multipart/signed properly) and a utility
7135 called 'smime' to call all this stuff. This is based on code I
7136 originally wrote for Celo who have kindly allowed it to be
7137 included in OpenSSL.
7140 *) Add variants des_set_key_checked and des_set_key_unchecked of
7141 des_set_key (aka des_key_sched). Global variable des_check_key
7142 decides which of these is called by des_set_key; this way
7143 des_check_key behaves as it always did, but applications and
7144 the library itself, which was buggy for des_check_key == 1,
7145 have a cleaner way to pick the version they need.
7148 *) New function PKCS12_newpass() which changes the password of a
7152 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7153 dynamic mix. In both cases the ids can be used as an index into the
7154 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7155 functions so they accept a list of the field values and the
7156 application doesn't need to directly manipulate the X509_TRUST
7160 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7164 *) Modify the way the V3 extension code looks up extensions. This now
7165 works in a similar way to the object code: we have some "standard"
7166 extensions in a static table which is searched with OBJ_bsearch()
7167 and the application can add dynamic ones if needed. The file
7168 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7169 updated whenever a new extension is added to the core code and kept
7170 in ext_nid order. There is a simple program 'tabtest.c' which checks
7171 this. New extensions are not added too often so this file can readily
7172 be maintained manually.
7174 There are two big advantages in doing things this way. The extensions
7175 can be looked up immediately and no longer need to be "added" using
7176 X509V3_add_standard_extensions(): this function now does nothing.
7177 [Side note: I get *lots* of email saying the extension code doesn't
7178 work because people forget to call this function]
7179 Also no dynamic allocation is done unless new extensions are added:
7180 so if we don't add custom extensions there is no need to call
7181 X509V3_EXT_cleanup().
7184 *) Modify enc utility's salting as follows: make salting the default. Add a
7185 magic header, so unsalted files fail gracefully instead of just decrypting
7186 to garbage. This is because not salting is a big security hole, so people
7187 should be discouraged from doing it.
7190 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7191 digest to be passed on the command line but it only used this
7192 parameter when signing a certificate. Modified so all relevant
7193 operations are affected by the digest parameter including the
7194 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7195 DSA key was used because it didn't fix the digest.
7198 *) Initial certificate chain verify code. Currently tests the untrusted
7199 certificates for consistency with the verify purpose (which is set
7200 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7202 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7203 this is because it will reject chains with invalid extensions whereas
7204 every previous version of OpenSSL and SSLeay made no checks at all.
7206 Trust code: checks the root CA for the relevant trust settings. Trust
7207 settings have an initial value consistent with the verify purpose: e.g.
7208 if the verify purpose is for SSL client use it expects the CA to be
7209 trusted for SSL client use. However the default value can be changed to
7210 permit custom trust settings: one example of this would be to only trust
7211 certificates from a specific "secure" set of CAs.
7213 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7214 which should be used for version portability: especially since the
7215 verify structure is likely to change more often now.
7217 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7218 to set them. If not set then assume SSL clients will verify SSL servers
7221 Two new options to the verify program: -untrusted allows a set of
7222 untrusted certificates to be passed in and -purpose which sets the
7223 intended purpose of the certificate. If a purpose is set then the
7224 new chain verify code is used to check extension consistency.
7227 *) Support for the authority information access extension.
7230 *) Modify RSA and DSA PEM read routines to transparently handle
7231 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7232 public keys in a format compatible with certificate
7233 SubjectPublicKeyInfo structures. Unfortunately there were already
7234 functions called *_PublicKey_* which used various odd formats so
7235 these are retained for compatibility: however the DSA variants were
7236 never in a public release so they have been deleted. Changed dsa/rsa
7237 utilities to handle the new format: note no releases ever handled public
7238 keys so we should be OK.
7240 The primary motivation for this change is to avoid the same fiasco
7241 that dogs private keys: there are several incompatible private key
7242 formats some of which are standard and some OpenSSL specific and
7243 require various evil hacks to allow partial transparent handling and
7244 even then it doesn't work with DER formats. Given the option anything
7245 other than PKCS#8 should be dumped: but the other formats have to
7246 stay in the name of compatibility.
7248 With public keys and the benefit of hindsight one standard format
7249 is used which works with EVP_PKEY, RSA or DSA structures: though
7250 it clearly returns an error if you try to read the wrong kind of key.
7252 Added a -pubkey option to the 'x509' utility to output the public key.
7253 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7254 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7255 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7256 that do the same as the EVP_PKEY_assign_*() except they up the
7257 reference count of the added key (they don't "swallow" the
7261 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7262 CRLs would fail if the file contained no certificates or no CRLs:
7263 added a new function to read in both types and return the number
7264 read: this means that if none are read it will be an error. The
7265 DER versions of the certificate and CRL reader would always fail
7266 because it isn't possible to mix certificates and CRLs in DER format
7267 without choking one or the other routine. Changed this to just read
7268 a certificate: this is the best we can do. Also modified the code
7269 in apps/verify.c to take notice of return codes: it was previously
7270 attempting to read in certificates from NULL pointers and ignoring
7271 any errors: this is one reason why the cert and CRL reader seemed
7272 to work. It doesn't check return codes from the default certificate
7273 routines: these may well fail if the certificates aren't installed.
7276 *) Code to support otherName option in GeneralName.
7279 *) First update to verify code. Change the verify utility
7280 so it warns if it is passed a self signed certificate:
7281 for consistency with the normal behaviour. X509_verify
7282 has been modified to it will now verify a self signed
7283 certificate if *exactly* the same certificate appears
7284 in the store: it was previously impossible to trust a
7285 single self signed certificate. This means that:
7286 openssl verify ss.pem
7287 now gives a warning about a self signed certificate but
7288 openssl verify -CAfile ss.pem ss.pem
7292 *) For servers, store verify_result in SSL_SESSION data structure
7293 (and add it to external session representation).
7294 This is needed when client certificate verifications fails,
7295 but an application-provided verification callback (set by
7296 SSL_CTX_set_cert_verify_callback) allows accepting the session
7297 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7298 but returns 1): When the session is reused, we have to set
7299 ssl->verify_result to the appropriate error code to avoid
7301 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7303 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7304 case in PKCS7_dataInit() where the signed PKCS7 structure
7305 didn't contain any existing data because it was being created.
7306 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7308 *) Add a salt to the key derivation routines in enc.c. This
7309 forms the first 8 bytes of the encrypted file. Also add a
7310 -S option to allow a salt to be input on the command line.
7313 *) New function X509_cmp(). Oddly enough there wasn't a function
7314 to compare two certificates. We do this by working out the SHA1
7315 hash and comparing that. X509_cmp() will be needed by the trust
7319 *) SSL_get1_session() is like SSL_get_session(), but increments
7320 the reference count in the SSL_SESSION returned.
7321 [Geoff Thorpe <geoff@eu.c2.net>]
7323 *) Fix for 'req': it was adding a null to request attributes.
7324 Also change the X509_LOOKUP and X509_INFO code to handle
7325 certificate auxiliary information.
7328 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7332 *) Add the possibility to add extra information to the memory leak
7333 detecting output, to form tracebacks, showing from where each
7334 allocation was originated: CRYPTO_push_info("constant string") adds
7335 the string plus current file name and line number to a per-thread
7336 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7337 is like calling CYRPTO_pop_info() until the stack is empty.
7338 Also updated memory leak detection code to be multi-thread-safe.
7341 *) Add options -text and -noout to pkcs7 utility and delete the
7342 encryption options which never did anything. Update docs.
7345 *) Add options to some of the utilities to allow the pass phrase
7346 to be included on either the command line (not recommended on
7347 OSes like Unix) or read from the environment. Update the
7348 manpages and fix a few bugs.
7351 *) Add a few manpages for some of the openssl commands.
7354 *) Fix the -revoke option in ca. It was freeing up memory twice,
7355 leaking and not finding already revoked certificates.
7358 *) Extensive changes to support certificate auxiliary information.
7359 This involves the use of X509_CERT_AUX structure and X509_AUX
7360 functions. An X509_AUX function such as PEM_read_X509_AUX()
7361 can still read in a certificate file in the usual way but it
7362 will also read in any additional "auxiliary information". By
7363 doing things this way a fair degree of compatibility can be
7364 retained: existing certificates can have this information added
7365 using the new 'x509' options.
7367 Current auxiliary information includes an "alias" and some trust
7368 settings. The trust settings will ultimately be used in enhanced
7369 certificate chain verification routines: currently a certificate
7370 can only be trusted if it is self signed and then it is trusted
7374 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7375 The problem was that one of the replacement routines had not been working
7376 since SSLeay releases. For now the offending routine has been replaced
7377 with non-optimised assembler. Even so, this now gives around 95%
7378 performance improvement for 1024 bit RSA signs.
7381 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7382 handling. Most clients have the effective key size in bits equal to
7383 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7384 A few however don't do this and instead use the size of the decrypted key
7385 to determine the RC2 key length and the AlgorithmIdentifier to determine
7386 the effective key length. In this case the effective key length can still
7387 be 40 bits but the key length can be 168 bits for example. This is fixed
7388 by manually forcing an RC2 key into the EVP_PKEY structure because the
7389 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7390 the key length and effective key length are equal.
7393 *) Add a bunch of functions that should simplify the creation of
7394 X509_NAME structures. Now you should be able to do:
7395 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7396 and have it automatically work out the correct field type and fill in
7397 the structures. The more adventurous can try:
7398 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7399 and it will (hopefully) work out the correct multibyte encoding.
7402 *) Change the 'req' utility to use the new field handling and multibyte
7403 copy routines. Before the DN field creation was handled in an ad hoc
7404 way in req, ca, and x509 which was rather broken and didn't support
7405 BMPStrings or UTF8Strings. Since some software doesn't implement
7406 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7407 using the dirstring_type option. See the new comment in the default
7408 openssl.cnf for more info.
7411 *) Make crypto/rand/md_rand.c more robust:
7412 - Assure unique random numbers after fork().
7413 - Make sure that concurrent threads access the global counter and
7414 md serializably so that we never lose entropy in them
7415 or use exactly the same state in multiple threads.
7416 Access to the large state is not always serializable because
7417 the additional locking could be a performance killer, and
7418 md should be large enough anyway.
7421 *) New file apps/app_rand.c with commonly needed functionality
7422 for handling the random seed file.
7424 Use the random seed file in some applications that previously did not:
7426 dsaparam -genkey (which also ignored its '-rand' option),
7429 x509 (when signing).
7430 Except on systems with /dev/urandom, it is crucial to have a random
7431 seed file at least for key creation, DSA signing, and for DH exchanges;
7432 for RSA signatures we could do without one.
7434 gendh and gendsa (unlike genrsa) used to read only the first byte
7435 of each file listed in the '-rand' option. The function as previously
7436 found in genrsa is now in app_rand.c and is used by all programs
7437 that support '-rand'.
7440 *) In RAND_write_file, use mode 0600 for creating files;
7441 don't just chmod when it may be too late.
7444 *) Report an error from X509_STORE_load_locations
7445 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7448 *) New function ASN1_mbstring_copy() this copies a string in either
7449 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7450 into an ASN1_STRING type. A mask of permissible types is passed
7451 and it chooses the "minimal" type to use or an error if not type
7455 *) Add function equivalents to the various macros in asn1.h. The old
7456 macros are retained with an M_ prefix. Code inside the library can
7457 use the M_ macros. External code (including the openssl utility)
7458 should *NOT* in order to be "shared library friendly".
7461 *) Add various functions that can check a certificate's extensions
7462 to see if it usable for various purposes such as SSL client,
7463 server or S/MIME and CAs of these types. This is currently
7464 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7465 verification. Also added a -purpose flag to x509 utility to
7466 print out all the purposes.
7469 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7473 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7474 for, obtain and decode and extension and obtain its critical flag.
7475 This allows all the necessary extension code to be handled in a
7476 single function call.
7479 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7480 platforms. See crypto/rc4/rc4_enc.c for further details.
7483 *) New -noout option to asn1parse. This causes no output to be produced
7484 its main use is when combined with -strparse and -out to extract data
7485 from a file (which may not be in ASN.1 format).
7488 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7489 when producing the local key id.
7490 [Richard Levitte <levitte@stacken.kth.se>]
7492 *) New option -dhparam in s_server. This allows a DH parameter file to be
7493 stated explicitly. If it is not stated then it tries the first server
7494 certificate file. The previous behaviour hard coded the filename
7498 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7499 a public key to be input or output. For example:
7500 openssl rsa -in key.pem -pubout -out pubkey.pem
7501 Also added necessary DSA public key functions to handle this.
7504 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7505 in the message. This was handled by allowing
7506 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7507 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7509 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7510 to the end of the strings whereas this didn't. This would cause problems
7511 if strings read with d2i_ASN1_bytes() were later modified.
7512 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7514 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7515 data and it contains EOF it will end up returning an error. This is
7516 caused by input 46 bytes long. The cause is due to the way base64
7517 BIOs find the start of base64 encoded data. They do this by trying a
7518 trial decode on each line until they find one that works. When they
7519 do a flag is set and it starts again knowing it can pass all the
7520 data directly through the decoder. Unfortunately it doesn't reset
7521 the context it uses. This means that if EOF is reached an attempt
7522 is made to pass two EOFs through the context and this causes the
7523 resulting error. This can also cause other problems as well. As is
7524 usual with these problems it takes *ages* to find and the fix is
7525 trivial: move one line.
7526 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7528 *) Ugly workaround to get s_client and s_server working under Windows. The
7529 old code wouldn't work because it needed to select() on sockets and the
7530 tty (for keypresses and to see if data could be written). Win32 only
7531 supports select() on sockets so we select() with a 1s timeout on the
7532 sockets and then see if any characters are waiting to be read, if none
7533 are present then we retry, we also assume we can always write data to
7534 the tty. This isn't nice because the code then blocks until we've
7535 received a complete line of data and it is effectively polling the
7536 keyboard at 1s intervals: however it's quite a bit better than not
7537 working at all :-) A dedicated Windows application might handle this
7538 with an event loop for example.
7541 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7542 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7543 will be called when RSA_sign() and RSA_verify() are used. This is useful
7544 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7545 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7546 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7547 This necessitated the support of an extra signature type NID_md5_sha1
7548 for SSL signatures and modifications to the SSL library to use it instead
7549 of calling RSA_public_decrypt() and RSA_private_encrypt().
7552 *) Add new -verify -CAfile and -CApath options to the crl program, these
7553 will lookup a CRL issuers certificate and verify the signature in a
7554 similar way to the verify program. Tidy up the crl program so it
7555 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7556 less strict. It will now permit CRL extensions even if it is not
7557 a V2 CRL: this will allow it to tolerate some broken CRLs.
7560 *) Initialize all non-automatic variables each time one of the openssl
7561 sub-programs is started (this is necessary as they may be started
7562 multiple times from the "OpenSSL>" prompt).
7563 [Lennart Bang, Bodo Moeller]
7565 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7566 removing all other RSA functionality (this is what NO_RSA does). This
7567 is so (for example) those in the US can disable those operations covered
7568 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7572 *) Non-copying interface to BIO pairs.
7573 (still largely untested)
7576 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7577 ASCII string. This was handled independently in various places before.
7580 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7581 UTF8 strings a character at a time.
7584 *) Use client_version from client hello to select the protocol
7585 (s23_srvr.c) and for RSA client key exchange verification
7586 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7589 *) Add various utility functions to handle SPKACs, these were previously
7590 handled by poking round in the structure internals. Added new function
7591 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7592 print, verify and generate SPKACs. Based on an original idea from
7593 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7596 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7599 *) Allow the config file extension section to be overwritten on the
7600 command line. Based on an original idea from Massimiliano Pala
7601 <madwolf@comune.modena.it>. The new option is called -extensions
7602 and can be applied to ca, req and x509. Also -reqexts to override
7603 the request extensions in req and -crlexts to override the crl extensions
7607 *) Add new feature to the SPKAC handling in ca. Now you can include
7608 the same field multiple times by preceding it by "XXXX." for example:
7611 this is the same syntax as used in the req config file.
7614 *) Allow certificate extensions to be added to certificate requests. These
7615 are specified in a 'req_extensions' option of the req section of the
7616 config file. They can be printed out with the -text option to req but
7617 are otherwise ignored at present.
7620 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7621 data read consists of only the final block it would not decrypted because
7622 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7623 A misplaced 'break' also meant the decrypted final block might not be
7624 copied until the next read.
7627 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7628 a few extra parameters to the DH structure: these will be useful if
7629 for example we want the value of 'q' or implement X9.42 DH.
7632 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7633 provides hooks that allow the default DSA functions or functions on a
7634 "per key" basis to be replaced. This allows hardware acceleration and
7635 hardware key storage to be handled without major modification to the
7636 library. Also added low level modexp hooks and CRYPTO_EX structure and
7637 associated functions.
7640 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7641 as "read only": it can't be written to and the buffer it points to will
7642 not be freed. Reading from a read only BIO is much more efficient than
7643 a normal memory BIO. This was added because there are several times when
7644 an area of memory needs to be read from a BIO. The previous method was
7645 to create a memory BIO and write the data to it, this results in two
7646 copies of the data and an O(n^2) reading algorithm. There is a new
7647 function BIO_new_mem_buf() which creates a read only memory BIO from
7648 an area of memory. Also modified the PKCS#7 routines to use read only
7652 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7653 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7654 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7655 but a retry condition occured while trying to read the rest.
7658 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7659 NID_pkcs7_encrypted by default: this was wrong since this should almost
7660 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7661 the encrypted data type: this is a more sensible place to put it and it
7662 allows the PKCS#12 code to be tidied up that duplicated this
7666 *) Changed obj_dat.pl script so it takes its input and output files on
7667 the command line. This should avoid shell escape redirection problems
7671 *) Initial support for certificate extension requests, these are included
7672 in things like Xenroll certificate requests. Included functions to allow
7673 extensions to be obtained and added.
7676 *) -crlf option to s_client and s_server for sending newlines as
7677 CRLF (as required by many protocols).
7680 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7682 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7683 [Ralf S. Engelschall]
7685 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7686 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7688 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7692 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7693 DH parameters/keys (q is lost during that conversion, but the resulting
7694 DH parameters contain its length).
7696 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7697 much faster than DH_generate_parameters (which creates parameters
7698 where p = 2*q + 1), and also the smaller q makes DH computations
7699 much more efficient (160-bit exponentiation instead of 1024-bit
7700 exponentiation); so this provides a convenient way to support DHE
7701 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7702 utter importance to use
7703 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7705 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7706 when such DH parameters are used, because otherwise small subgroup
7707 attacks may become possible!
7710 *) Avoid memory leak in i2d_DHparams.
7713 *) Allow the -k option to be used more than once in the enc program:
7714 this allows the same encrypted message to be read by multiple recipients.
7717 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7718 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7719 it will always use the numerical form of the OID, even if it has a short
7723 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7724 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7725 otherwise bn_mod_exp was called. In the case of hardware keys for example
7726 no private key components need be present and it might store extra data
7727 in the RSA structure, which cannot be accessed from bn_mod_exp.
7728 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7729 private key operations.
7732 *) Added support for SPARC Linux.
7735 *) pem_password_cb function type incompatibly changed from
7736 typedef int pem_password_cb(char *buf, int size, int rwflag);
7738 ....(char *buf, int size, int rwflag, void *userdata);
7739 so that applications can pass data to their callbacks:
7740 The PEM[_ASN1]_{read,write}... functions and macros now take an
7741 additional void * argument, which is just handed through whenever
7742 the password callback is called.
7743 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7745 New function SSL_CTX_set_default_passwd_cb_userdata.
7747 Compatibility note: As many C implementations push function arguments
7748 onto the stack in reverse order, the new library version is likely to
7749 interoperate with programs that have been compiled with the old
7750 pem_password_cb definition (PEM_whatever takes some data that
7751 happens to be on the stack as its last argument, and the callback
7752 just ignores this garbage); but there is no guarantee whatsoever that
7755 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7756 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7757 problems not only on Windows, but also on some Unix platforms.
7758 To avoid problematic command lines, these definitions are now in an
7759 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7760 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7763 *) MIPS III/IV assembler module is reimplemented.
7766 *) More DES library cleanups: remove references to srand/rand and
7767 delete an unused file.
7770 *) Add support for the the free Netwide assembler (NASM) under Win32,
7771 since not many people have MASM (ml) and it can be hard to obtain.
7772 This is currently experimental but it seems to work OK and pass all
7773 the tests. Check out INSTALL.W32 for info.
7776 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7777 without temporary keys kept an extra copy of the server key,
7778 and connections with temporary keys did not free everything in case
7782 *) New function RSA_check_key and new openssl rsa option -check
7783 for verifying the consistency of RSA keys.
7784 [Ulf Moeller, Bodo Moeller]
7786 *) Various changes to make Win32 compile work:
7787 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7788 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7789 comparison" warnings.
7790 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7793 *) Add a debugging option to PKCS#5 v2 key generation function: when
7794 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7795 derived keys are printed to stderr.
7798 *) Copy the flags in ASN1_STRING_dup().
7799 [Roman E. Pavlov <pre@mo.msk.ru>]
7801 *) The x509 application mishandled signing requests containing DSA
7802 keys when the signing key was also DSA and the parameters didn't match.
7804 It was supposed to omit the parameters when they matched the signing key:
7805 the verifying software was then supposed to automatically use the CA's
7806 parameters if they were absent from the end user certificate.
7808 Omitting parameters is no longer recommended. The test was also
7809 the wrong way round! This was probably due to unusual behaviour in
7810 EVP_cmp_parameters() which returns 1 if the parameters match.
7811 This meant that parameters were omitted when they *didn't* match and
7812 the certificate was useless. Certificates signed with 'ca' didn't have
7814 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7816 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7817 The interface is as follows:
7818 Applications can use
7819 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7820 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7821 "off" is now the default.
7822 The library internally uses
7823 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7824 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7825 to disable memory-checking temporarily.
7827 Some inconsistent states that previously were possible (and were
7828 even the default) are now avoided.
7830 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7831 with each memory chunk allocated; this is occasionally more helpful
7832 than just having a counter.
7834 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7836 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7840 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7841 which largely parallels "options", but is for changing API behaviour,
7842 whereas "options" are about protocol behaviour.
7843 Initial "mode" flags are:
7845 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7846 a single record has been written.
7847 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7848 retries use the same buffer location.
7849 (But all of the contents must be
7853 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7856 *) Fix problems with no-hmac etc.
7857 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7859 *) New functions RSA_get_default_method(), RSA_set_method() and
7860 RSA_get_method(). These allows replacement of RSA_METHODs without having
7861 to mess around with the internals of an RSA structure.
7864 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7865 Also really enable memory leak checks in openssl.c and in some
7867 [Chad C. Mulligan, Bodo Moeller]
7869 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7870 up the length of negative integers. This has now been simplified to just
7871 store the length when it is first determined and use it later, rather
7872 than trying to keep track of where data is copied and updating it to
7874 [Steve Henson, reported by Brien Wheeler
7875 <bwheeler@authentica-security.com>]
7877 *) Add a new function PKCS7_signatureVerify. This allows the verification
7878 of a PKCS#7 signature but with the signing certificate passed to the
7879 function itself. This contrasts with PKCS7_dataVerify which assumes the
7880 certificate is present in the PKCS#7 structure. This isn't always the
7881 case: certificates can be omitted from a PKCS#7 structure and be
7882 distributed by "out of band" means (such as a certificate database).
7885 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7886 function prototypes in pem.h, also change util/mkdef.pl to add the
7887 necessary function names.
7890 *) mk1mf.pl (used by Windows builds) did not properly read the
7891 options set by Configure in the top level Makefile, and Configure
7892 was not even able to write more than one option correctly.
7893 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7896 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7897 file to be loaded from a BIO or FILE pointer. The BIO version will
7898 for example allow memory BIOs to contain config info.
7901 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7902 Whoever hopes to achieve shared-library compatibility across versions
7903 must use this, not the compile-time macro.
7904 (Exercise 0.9.4: Which is the minimum library version required by
7906 Note: All this applies only to multi-threaded programs, others don't
7910 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7911 through a BIO pair triggered the default case, i.e.
7912 SSLerr(...,SSL_R_UNKNOWN_STATE).
7915 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7916 can use the SSL library even if none of the specific BIOs is
7920 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7921 for the encoded length.
7922 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7924 *) Add initial documentation of the X509V3 functions.
7927 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7928 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7929 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7930 secure PKCS#8 private key format with a high iteration count.
7933 *) Fix determination of Perl interpreter: A perl or perl5
7934 _directory_ in $PATH was also accepted as the interpreter.
7935 [Ralf S. Engelschall]
7937 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7938 wrong with it but it was very old and did things like calling
7939 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7943 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7944 to use the new extension code.
7947 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7948 with macros. This should make it easier to change their form, add extra
7949 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7953 *) Add to configuration table a new entry that can specify an alternative
7954 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7955 according to Mark Crispin <MRC@Panda.COM>.
7959 *) DES CBC did not update the IV. Weird.
7962 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7963 Changing the behaviour of the former might break existing programs --
7964 where IV updating is needed, des_ncbc_encrypt can be used.
7967 *) When bntest is run from "make test" it drives bc to check its
7968 calculations, as well as internally checking them. If an internal check
7969 fails, it needs to cause bc to give a non-zero result or make test carries
7970 on without noticing the failure. Fixed.
7973 *) DES library cleanups.
7976 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7977 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7978 ciphers. NOTE: although the key derivation function has been verified
7979 against some published test vectors it has not been extensively tested
7980 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7984 *) Instead of "mkdir -p", which is not fully portable, use new
7985 Perl script "util/mkdir-p.pl".
7988 *) Rewrite the way password based encryption (PBE) is handled. It used to
7989 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7990 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7991 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7992 the 'parameter' field of the AlgorithmIdentifier is passed to the
7993 underlying key generation function so it must do its own ASN1 parsing.
7994 This has also changed the EVP_PBE_CipherInit() function which now has a
7995 'parameter' argument instead of literal salt and iteration count values
7996 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7999 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8000 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8001 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8002 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8003 value was just used as a "magic string" and not used directly its
8004 value doesn't matter.
8007 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8011 *) "linux-sparc64" configuration (ultrapenguin).
8012 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8013 "linux-sparc" configuration.
8014 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8016 *) config now generates no-xxx options for missing ciphers.
8019 *) Support the EBCDIC character set (work in progress).
8020 File ebcdic.c not yet included because it has a different license.
8021 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8023 *) Support BS2000/OSD-POSIX.
8024 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8026 *) Make callbacks for key generation use void * instead of char *.
8029 *) Make S/MIME samples compile (not yet tested).
8032 *) Additional typesafe stacks.
8035 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8039 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8041 *) New configuration variant "sco5-gcc".
8043 *) Updated some demos.
8044 [Sean O Riordain, Wade Scholine]
8046 *) Add missing BIO_free at exit of pkcs12 application.
8049 *) Fix memory leak in conf.c.
8052 *) Updates for Win32 to assembler version of MD5.
8055 *) Set #! path to perl in apps/der_chop to where we found it
8056 instead of using a fixed path.
8059 *) SHA library changes for irix64-mips4-cc.
8062 *) Improvements for VMS support.
8066 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8068 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8069 This also avoids the problems with SC4.2 and unpatched SC5.
8070 [Andy Polyakov <appro@fy.chalmers.se>]
8072 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8073 These are required because of the typesafe stack would otherwise break
8074 existing code. If old code used a structure member which used to be STACK
8075 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8076 sk_num or sk_value it would produce an error because the num, data members
8077 are not present in STACK_OF. Now it just produces a warning. sk_set
8078 replaces the old method of assigning a value to sk_value
8079 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8080 that does this will no longer work (and should use sk_set instead) but
8081 this could be regarded as a "questionable" behaviour anyway.
8084 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8085 correctly handle encrypted S/MIME data.
8088 *) Change type of various DES function arguments from des_cblock
8089 (which means, in function argument declarations, pointer to char)
8090 to des_cblock * (meaning pointer to array with 8 char elements),
8091 which allows the compiler to do more typechecking; it was like
8092 that back in SSLeay, but with lots of ugly casts.
8094 Introduce new type const_des_cblock.
8097 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8098 problems: find RecipientInfo structure that matches recipient certificate
8099 and initialise the ASN1 structures properly based on passed cipher.
8102 *) Belatedly make the BN tests actually check the results.
8105 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8106 to and from BNs: it was completely broken. New compilation option
8107 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8108 key elements as negative integers.
8111 *) Reorganize and speed up MD5.
8112 [Andy Polyakov <appro@fy.chalmers.se>]
8115 [Richard Levitte <richard@levitte.org>]
8117 *) New option -out to asn1parse to allow the parsed structure to be
8118 output to a file. This is most useful when combined with the -strparse
8119 option to examine the output of things like OCTET STRINGS.
8122 *) Make SSL library a little more fool-proof by not requiring any longer
8123 that SSL_set_{accept,connect}_state be called before
8124 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8125 in many applications because usually everything *appeared* to work as
8126 intended anyway -- now it really works as intended).
8129 *) Move openssl.cnf out of lib/.
8132 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8133 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8134 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8135 [Ralf S. Engelschall]
8137 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8138 handle PKCS#7 enveloped data properly.
8139 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8141 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8142 copying pointers. The cert_st handling is changed by this in
8143 various ways (and thus what used to be known as ctx->default_cert
8144 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8145 any longer when s->cert does not give us what we need).
8146 ssl_cert_instantiate becomes obsolete by this change.
8147 As soon as we've got the new code right (possibly it already is?),
8148 we have solved a couple of bugs of the earlier code where s->cert
8149 was used as if it could not have been shared with other SSL structures.
8151 Note that using the SSL API in certain dirty ways now will result
8152 in different behaviour than observed with earlier library versions:
8153 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8154 does not influence s as it used to.
8156 In order to clean up things more thoroughly, inside SSL_SESSION
8157 we don't use CERT any longer, but a new structure SESS_CERT
8158 that holds per-session data (if available); currently, this is
8159 the peer's certificate chain and, for clients, the server's certificate
8160 and temporary key. CERT holds only those values that can have
8161 meaningful defaults in an SSL_CTX.
8164 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8165 from the internal representation. Various PKCS#7 fixes: remove some
8166 evil casts and set the enc_dig_alg field properly based on the signing
8170 *) Allow PKCS#12 password to be set from the command line or the
8171 environment. Let 'ca' get its config file name from the environment
8172 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8176 *) Allow certificate policies extension to use an IA5STRING for the
8177 organization field. This is contrary to the PKIX definition but
8178 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8182 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8183 without disallowing inline assembler and the like for non-pedantic builds.
8186 *) Support Borland C++ builder.
8187 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8192 *) SHA-1 cleanups and performance enhancements.
8193 [Andy Polyakov <appro@fy.chalmers.se>]
8195 *) Sparc v8plus assembler for the bignum library.
8196 [Andy Polyakov <appro@fy.chalmers.se>]
8198 *) Accept any -xxx and +xxx compiler options in Configure.
8201 *) Update HPUX configuration.
8204 *) Add missing sk_<type>_unshift() function to safestack.h
8205 [Ralf S. Engelschall]
8207 *) New function SSL_CTX_use_certificate_chain_file that sets the
8208 "extra_cert"s in addition to the certificate. (This makes sense
8209 only for "PEM" format files, as chains as a whole are not
8213 *) Support verify_depth from the SSL API.
8214 x509_vfy.c had what can be considered an off-by-one-error:
8215 Its depth (which was not part of the external interface)
8216 was actually counting the number of certificates in a chain;
8217 now it really counts the depth.
8220 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8221 instead of X509err, which often resulted in confusing error
8222 messages since the error codes are not globally unique
8223 (e.g. an alleged error in ssl3_accept when a certificate
8224 didn't match the private key).
8226 *) New function SSL_CTX_set_session_id_context that allows to set a default
8227 value (so that you don't need SSL_set_session_id_context for each
8228 connection using the SSL_CTX).
8231 *) OAEP decoding bug fix.
8234 *) Support INSTALL_PREFIX for package builders, as proposed by
8238 *) New Configure options "threads" and "no-threads". For systems
8239 where the proper compiler options are known (currently Solaris
8240 and Linux), "threads" is the default.
8243 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8246 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8247 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8248 such as /usr/local/bin.
8251 *) "make linux-shared" to build shared libraries.
8252 [Niels Poppe <niels@netbox.org>]
8254 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8257 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8258 extension adding in x509 utility.
8261 *) Remove NOPROTO sections and error code comments.
8264 *) Partial rewrite of the DEF file generator to now parse the ANSI
8268 *) New Configure options --prefix=DIR and --openssldir=DIR.
8271 *) Complete rewrite of the error code script(s). It is all now handled
8272 by one script at the top level which handles error code gathering,
8273 header rewriting and C source file generation. It should be much better
8274 than the old method: it now uses a modified version of Ulf's parser to
8275 read the ANSI prototypes in all header files (thus the old K&R definitions
8276 aren't needed for error creation any more) and do a better job of
8277 translating function codes into names. The old 'ASN1 error code imbedded
8278 in a comment' is no longer necessary and it doesn't use .err files which
8279 have now been deleted. Also the error code call doesn't have to appear all
8280 on one line (which resulted in some large lines...).
8283 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8286 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8287 0 (which usually indicates a closed connection), but continue reading.
8290 *) Fix some race conditions.
8293 *) Add support for CRL distribution points extension. Add Certificate
8294 Policies and CRL distribution points documentation.
8297 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8300 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8301 8 of keying material. Merlin has also confirmed interop with this fix
8302 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8303 [Merlin Hughes <merlin@baltimore.ie>]
8305 *) Fix lots of warnings.
8306 [Richard Levitte <levitte@stacken.kth.se>]
8308 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8309 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8310 [Richard Levitte <levitte@stacken.kth.se>]
8312 *) Fix problems with sizeof(long) == 8.
8313 [Andy Polyakov <appro@fy.chalmers.se>]
8315 *) Change functions to ANSI C.
8318 *) Fix typos in error codes.
8319 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8321 *) Remove defunct assembler files from Configure.
8324 *) SPARC v8 assembler BIGNUM implementation.
8325 [Andy Polyakov <appro@fy.chalmers.se>]
8327 *) Support for Certificate Policies extension: both print and set.
8328 Various additions to support the r2i method this uses.
8331 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8332 return a const string when you are expecting an allocated buffer.
8335 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8336 types DirectoryString and DisplayText.
8339 *) Add code to allow r2i extensions to access the configuration database,
8340 add an LHASH database driver and add several ctx helper functions.
8343 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8344 fail when they extended the size of a BIGNUM.
8347 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8348 support typesafe stack.
8351 *) Fix typo in SSL_[gs]et_options().
8352 [Nils Frostberg <nils@medcom.se>]
8354 *) Delete various functions and files that belonged to the (now obsolete)
8355 old X509V3 handling code.
8358 *) New Configure option "rsaref".
8361 *) Don't auto-generate pem.h.
8364 *) Introduce type-safe ASN.1 SETs.
8367 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8368 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8370 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8371 that links with OpenSSL (well at least cause lots of warnings), but fear
8372 not: the conversion is trivial, and it eliminates loads of evil casts. A
8373 few STACKed things have been converted already. Feel free to convert more.
8374 In the fullness of time, I'll do away with the STACK type altogether.
8377 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8378 specified in <certfile> by updating the entry in the index.txt file.
8379 This way one no longer has to edit the index.txt file manually for
8380 revoking a certificate. The -revoke option does the gory details now.
8381 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8383 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8384 `-text' option at all and this way the `-noout -text' combination was
8385 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8386 [Ralf S. Engelschall]
8388 *) Make sure a corresponding plain text error message exists for the
8389 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8390 verify callback function determined that a certificate was revoked.
8391 [Ralf S. Engelschall]
8393 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8394 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8395 all available cipers including rc5, which was forgotten until now.
8396 In order to let the testing shell script know which algorithms
8397 are available, a new (up to now undocumented) command
8398 "openssl list-cipher-commands" is used.
8401 *) Bugfix: s_client occasionally would sleep in select() when
8402 it should have checked SSL_pending() first.
8405 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8406 the raw DSA values prior to ASN.1 encoding.
8409 *) Tweaks to Configure
8410 [Niels Poppe <niels@netbox.org>]
8412 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8416 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8419 *) New config option to avoid instructions that are illegal on the 80386.
8420 The default code is faster, but requires at least a 486.
8423 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8424 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8425 same as SSL2_VERSION anyway.
8428 *) New "-showcerts" option for s_client.
8431 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8432 application. Various cleanups and fixes.
8435 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8436 modify error routines to work internally. Add error codes and PBE init
8437 to library startup routines.
8440 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8441 packing functions to asn1 and evp. Changed function names and error
8442 codes along the way.
8445 *) PKCS12 integration: and so it begins... First of several patches to
8446 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8447 objects to objects.h
8450 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8451 and display support for Thawte strong extranet extension.
8454 *) Add LinuxPPC support.
8455 [Jeff Dubrule <igor@pobox.org>]
8457 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8458 bn_div_words in alpha.s.
8459 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8461 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8462 OAEP isn't supported when OpenSSL is built with RSAref.
8463 [Ulf Moeller <ulf@fitug.de>]
8465 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8466 so they no longer are missing under -DNOPROTO.
8467 [Soren S. Jorvang <soren@t.dk>]
8470 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8472 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8473 doesn't work when the session is reused. Coming soon!
8476 *) Fix a security hole, that allows sessions to be reused in the wrong
8477 context thus bypassing client cert protection! All software that uses
8478 client certs and session caches in multiple contexts NEEDS PATCHING to
8479 allow session reuse! A fuller solution is in the works.
8480 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8482 *) Some more source tree cleanups (removed obsolete files
8483 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8484 permission on "config" script to be executable) and a fix for the INSTALL
8486 [Ulf Moeller <ulf@fitug.de>]
8488 *) Remove some legacy and erroneous uses of malloc, free instead of
8490 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8492 *) Make rsa_oaep_test return non-zero on error.
8493 [Ulf Moeller <ulf@fitug.de>]
8495 *) Add support for native Solaris shared libraries. Configure
8496 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8497 if someone would make that last step automatic.
8498 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8500 *) ctx_size was not built with the right compiler during "make links". Fixed.
8503 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8504 except NULL ciphers". This means the default cipher list will no longer
8505 enable NULL ciphers. They need to be specifically enabled e.g. with
8506 the string "DEFAULT:eNULL".
8509 *) Fix to RSA private encryption routines: if p < q then it would
8510 occasionally produce an invalid result. This will only happen with
8511 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8514 *) Be less restrictive and allow also `perl util/perlpath.pl
8515 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8516 because this way one can also use an interpreter named `perl5' (which is
8517 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8518 installed as `perl').
8519 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8521 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8522 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8524 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8525 advapi32.lib to Win32 build and change the pem test comparision
8526 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8527 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8528 and crypto/des/ede_cbcm_enc.c.
8531 *) DES quad checksum was broken on big-endian architectures. Fixed.
8534 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8535 Win32 test batch file so it (might) work again. The Win32 test batch file
8536 is horrible: I feel ill....
8539 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8540 in e_os.h. Audit of header files to check ANSI and non ANSI
8541 sections: 10 functions were absent from non ANSI section and not exported
8542 from Windows DLLs. Fixed up libeay.num for new functions.
8545 *) Make `openssl version' output lines consistent.
8546 [Ralf S. Engelschall]
8548 *) Fix Win32 symbol export lists for BIO functions: Added
8549 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8550 to ms/libeay{16,32}.def.
8551 [Ralf S. Engelschall]
8553 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8554 fine under Unix and passes some trivial tests I've now added. But the
8555 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8556 added to make sure no one expects that this stuff really works in the
8557 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8558 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8560 [Ralf S. Engelschall]
8562 *) Fix the generation of two part addresses in perl.
8563 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8565 *) Add config entry for Linux on MIPS.
8566 [John Tobey <jtobey@channel1.com>]
8568 *) Make links whenever Configure is run, unless we are on Windoze.
8571 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8572 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8576 *) Add a useful kludge to allow package maintainers to specify compiler and
8577 other platforms details on the command line without having to patch the
8578 Configure script everytime: One now can use ``perl Configure
8579 <id>:<details>'', i.e. platform ids are allowed to have details appended
8580 to them (seperated by colons). This is treated as there would be a static
8581 pre-configured entry in Configure's %table under key <id> with value
8582 <details> and ``perl Configure <id>'' is called. So, when you want to
8583 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8584 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8585 now, which overrides the FreeBSD-elf entry on-the-fly.
8586 [Ralf S. Engelschall]
8588 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8591 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8592 on the `perl Configure ...' command line. This way one can compile
8593 OpenSSL libraries with Position Independent Code (PIC) which is needed
8594 for linking it into DSOs.
8595 [Ralf S. Engelschall]
8597 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8601 *) Cleaned up the LICENSE document: The official contact for any license
8602 questions now is the OpenSSL core team under openssl-core@openssl.org.
8603 And add a paragraph about the dual-license situation to make sure people
8604 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8605 to the OpenSSL toolkit.
8606 [Ralf S. Engelschall]
8608 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8609 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8610 Additonally cleaned up the `make links' target: Remove unnecessary
8611 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8612 to speed processing and no longer clutter the display with confusing
8613 stuff. Instead only the actually done links are displayed.
8614 [Ralf S. Engelschall]
8616 *) Permit null encryption ciphersuites, used for authentication only. It used
8617 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8618 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8622 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8623 signed attributes when verifying signatures (this would break them),
8624 the detached data encoding was wrong and public keys obtained using
8625 X509_get_pubkey() weren't freed.
8628 *) Add text documentation for the BUFFER functions. Also added a work around
8629 to a Win95 console bug. This was triggered by the password read stuff: the
8630 last character typed gets carried over to the next fread(). If you were
8631 generating a new cert request using 'req' for example then the last
8632 character of the passphrase would be CR which would then enter the first
8636 *) Added the new `Includes OpenSSL Cryptography Software' button as
8637 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8638 button and can be used by applications based on OpenSSL to show the
8639 relationship to the OpenSSL project.
8640 [Ralf S. Engelschall]
8642 *) Remove confusing variables in function signatures in files
8643 ssl/ssl_lib.c and ssl/ssl.h.
8644 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8646 *) Don't install bss_file.c under PREFIX/include/
8647 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8649 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8650 functions that return function pointers and has support for NT specific
8651 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8652 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8653 unsigned to signed types: this was killing the Win32 compile.
8656 *) Add new certificate file to stack functions,
8657 SSL_add_dir_cert_subjects_to_stack() and
8658 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8659 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8660 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8661 This means that Apache-SSL and similar packages don't have to mess around
8662 to add as many CAs as they want to the preferred list.
8665 *) Experiment with doxygen documentation. Currently only partially applied to
8667 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8668 openssl.doxy as the configuration file.
8671 *) Get rid of remaining C++-style comments which strict C compilers hate.
8672 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8674 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8675 compiled in by default: it has problems with large keys.
8678 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8679 DH private keys and/or callback functions which directly correspond to
8680 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8681 is needed for applications which have to configure certificates on a
8682 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8684 For the RSA certificate situation is makes no difference, but
8685 for the DSA certificate situation this fixes the "no shared cipher"
8686 problem where the OpenSSL cipher selection procedure failed because the
8687 temporary keys were not overtaken from the context and the API provided
8688 no way to reconfigure them.
8689 The new functions now let applications reconfigure the stuff and they
8690 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8691 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8692 non-public-API function ssl_cert_instantiate() is used as a helper
8693 function and also to reduce code redundancy inside ssl_rsa.c.
8694 [Ralf S. Engelschall]
8696 *) Move s_server -dcert and -dkey options out of the undocumented feature
8697 area because they are useful for the DSA situation and should be
8698 recognized by the users.
8699 [Ralf S. Engelschall]
8701 *) Fix the cipher decision scheme for export ciphers: the export bits are
8702 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8703 SSL_EXP_MASK. So, the original variable has to be used instead of the
8704 already masked variable.
8705 [Richard Levitte <levitte@stacken.kth.se>]
8707 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8708 [Richard Levitte <levitte@stacken.kth.se>]
8710 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8711 from `int' to `unsigned int' because it's a length and initialized by
8712 EVP_DigestFinal() which expects an `unsigned int *'.
8713 [Richard Levitte <levitte@stacken.kth.se>]
8715 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8716 script. Instead use the usual Shell->Perl transition trick.
8717 [Ralf S. Engelschall]
8719 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8720 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8721 -noout -modulus' as it's already the case for `openssl rsa -noout
8722 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8723 currently the public key is printed (a decision which was already done by
8724 `openssl dsa -modulus' in the past) which serves a similar purpose.
8725 Additionally the NO_RSA no longer completely removes the whole -modulus
8726 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8728 [Ralf S. Engelschall]
8730 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8731 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8732 [Arne Ansper <arne@ats.cyber.ee>]
8734 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8735 to be added. Now both 'req' and 'ca' can use new objects defined in the
8739 *) Add cool BIO that does syslog (or event log on NT).
8740 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8742 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8743 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8744 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8745 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8748 *) Add preliminary config info for new extension code.
8751 *) Make RSA_NO_PADDING really use no padding.
8752 [Ulf Moeller <ulf@fitug.de>]
8754 *) Generate errors when private/public key check is done.
8757 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8758 for some CRL extensions and new objects added.
8761 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8762 key usage extension and fuller support for authority key id.
8765 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8766 padding method for RSA, which is recommended for new applications in PKCS
8767 #1 v2.0 (RFC 2437, October 1998).
8768 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8769 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8770 against Bleichbacher's attack on RSA.
8771 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8774 *) Updates to the new SSL compression code
8775 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8777 *) Fix so that the version number in the master secret, when passed
8778 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8779 (because the server will not accept higher), that the version number
8780 is 0x03,0x01, not 0x03,0x00
8781 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8783 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8784 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8785 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8788 *) Support for RAW extensions where an arbitrary extension can be
8789 created by including its DER encoding. See apps/openssl.cnf for
8793 *) Make sure latest Perl versions don't interpret some generated C array
8794 code as Perl array code in the crypto/err/err_genc.pl script.
8795 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8797 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8798 not many people have the assembler. Various Win32 compilation fixes and
8799 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8803 *) Modify configure script 'Configure' to automatically create crypto/date.h
8804 file under Win32 and also build pem.h from pem.org. New script
8805 util/mkfiles.pl to create the MINFO file on environments that can't do a
8806 'make files': perl util/mkfiles.pl >MINFO should work.
8809 *) Major rework of DES function declarations, in the pursuit of correctness
8810 and purity. As a result, many evil casts evaporated, and some weirdness,
8811 too. You may find this causes warnings in your code. Zapping your evil
8812 casts will probably fix them. Mostly.
8815 *) Fix for a typo in asn1.h. Bug fix to object creation script
8816 obj_dat.pl. It considered a zero in an object definition to mean
8817 "end of object": none of the objects in objects.h have any zeros
8818 so it wasn't spotted.
8819 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8821 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8822 Masking (CBCM). In the absence of test vectors, the best I have been able
8823 to do is check that the decrypt undoes the encrypt, so far. Send me test
8824 vectors if you have them.
8827 *) Correct calculation of key length for export ciphers (too much space was
8828 allocated for null ciphers). This has not been tested!
8831 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8832 message is now correct (it understands "crypto" and "ssl" on its
8833 command line). There is also now an "update" option. This will update
8834 the util/ssleay.num and util/libeay.num files with any new functions.
8836 perl util/mkdef.pl crypto ssl update
8837 it will update them.
8840 *) Overhauled the Perl interface (perl/*):
8841 - ported BN stuff to OpenSSL's different BN library
8842 - made the perl/ source tree CVS-aware
8843 - renamed the package from SSLeay to OpenSSL (the files still contain
8844 their history because I've copied them in the repository)
8845 - removed obsolete files (the test scripts will be replaced
8846 by better Test::Harness variants in the future)
8847 [Ralf S. Engelschall]
8849 *) First cut for a very conservative source tree cleanup:
8850 1. merge various obsolete readme texts into doc/ssleay.txt
8851 where we collect the old documents and readme texts.
8852 2. remove the first part of files where I'm already sure that we no
8853 longer need them because of three reasons: either they are just temporary
8854 files which were left by Eric or they are preserved original files where
8855 I've verified that the diff is also available in the CVS via "cvs diff
8856 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8857 the crypto/md/ stuff).
8858 [Ralf S. Engelschall]
8860 *) More extension code. Incomplete support for subject and issuer alt
8861 name, issuer and authority key id. Change the i2v function parameters
8862 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8863 what that's for :-) Fix to ASN1 macro which messed up
8864 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8867 *) Preliminary support for ENUMERATED type. This is largely copied from the
8871 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8872 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8874 *) Make sure `make rehash' target really finds the `openssl' program.
8875 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8877 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8878 like to hear about it if this slows down other processors.
8881 *) Add CygWin32 platform information to Configure script.
8882 [Alan Batie <batie@aahz.jf.intel.com>]
8884 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8885 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8887 *) New program nseq to manipulate netscape certificate sequences
8890 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8894 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8895 but the BN code had some problems that would cause failures when
8896 doing certificate verification and some other functions.
8897 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8899 *) Add ASN1 and PEM code to support netscape certificate sequences.
8902 *) Add ASN1 and PEM code to support netscape certificate sequences.
8905 *) Add several PKIX and private extended key usage OIDs.
8908 *) Modify the 'ca' program to handle the new extension code. Modify
8909 openssl.cnf for new extension format, add comments.
8912 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8913 and add a sample to openssl.cnf so req -x509 now adds appropriate
8917 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8918 error code, add initial support to X509_print() and x509 application.
8921 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8922 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8923 stuff is currently isolated and isn't even compiled yet.
8926 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8927 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8928 Removed the versions check from X509 routines when loading extensions:
8929 this allows certain broken certificates that don't set the version
8930 properly to be processed.
8933 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8934 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8935 can still be regenerated with "make depend".
8938 *) Spelling mistake in C version of CAST-128.
8939 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8941 *) Changes to the error generation code. The perl script err-code.pl
8942 now reads in the old error codes and retains the old numbers, only
8943 adding new ones if necessary. It also only changes the .err files if new
8944 codes are added. The makefiles have been modified to only insert errors
8945 when needed (to avoid needlessly modifying header files). This is done
8946 by only inserting errors if the .err file is newer than the auto generated
8947 C file. To rebuild all the error codes from scratch (the old behaviour)
8948 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8949 or delete all the .err files.
8952 *) CAST-128 was incorrectly implemented for short keys. The C version has
8953 been fixed, but is untested. The assembler versions are also fixed, but
8954 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8955 to regenerate it if needed.
8956 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8957 Hagino <itojun@kame.net>]
8959 *) File was opened incorrectly in randfile.c.
8960 [Ulf Möller <ulf@fitug.de>]
8962 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8963 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8964 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8965 al: it's just almost always a UTCTime. Note this patch adds new error
8966 codes so do a "make errors" if there are problems.
8969 *) Correct Linux 1 recognition in config.
8970 [Ulf Möller <ulf@fitug.de>]
8972 *) Remove pointless MD5 hash when using DSA keys in ca.
8973 [Anonymous <nobody@replay.com>]
8975 *) Generate an error if given an empty string as a cert directory. Also
8976 generate an error if handed NULL (previously returned 0 to indicate an
8977 error, but didn't set one).
8978 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8980 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8983 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8984 parameters. This was causing a warning which killed off the Win32 compile.
8987 *) Remove C++ style comments from crypto/bn/bn_local.h.
8988 [Neil Costigan <neil.costigan@celocom.com>]
8990 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8991 based on a text string, looking up short and long names and finally
8992 "dot" format. The "dot" format stuff didn't work. Added new function
8993 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8994 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8995 OID is not part of the table.
8998 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8999 X509_LOOKUP_by_alias().
9002 *) Sort openssl functions by name.
9005 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9006 encryption from sample DSA keys (in case anyone is interested the password
9010 *) Make _all_ *_free functions accept a NULL pointer.
9011 [Frans Heymans <fheymans@isaserver.be>]
9013 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9015 [Anonymous <nobody@replay.com>]
9017 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9018 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9020 *) Don't blow it for numeric -newkey arguments to apps/req.
9021 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9023 *) Temp key "for export" tests were wrong in s3_srvr.c.
9024 [Anonymous <nobody@replay.com>]
9026 *) Add prototype for temp key callback functions
9027 SSL_CTX_set_tmp_{rsa,dh}_callback().
9030 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9031 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9034 *) X509_name_add_entry() freed the wrong thing after an error.
9035 [Arne Ansper <arne@ats.cyber.ee>]
9037 *) rsa_eay.c would attempt to free a NULL context.
9038 [Arne Ansper <arne@ats.cyber.ee>]
9040 *) BIO_s_socket() had a broken should_retry() on Windoze.
9041 [Arne Ansper <arne@ats.cyber.ee>]
9043 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9044 [Arne Ansper <arne@ats.cyber.ee>]
9046 *) Make sure the already existing X509_STORE->depth variable is initialized
9047 in X509_STORE_new(), but document the fact that this variable is still
9048 unused in the certificate verification process.
9049 [Ralf S. Engelschall]
9051 *) Fix the various library and apps files to free up pkeys obtained from
9052 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9055 *) Fix reference counting in X509_PUBKEY_get(). This makes
9056 demos/maurice/example2.c work, amongst others, probably.
9057 [Steve Henson and Ben Laurie]
9059 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9060 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9061 are no longer created. This way we have a single and consistent command
9062 line interface `openssl <command>', similar to `cvs <command>'.
9063 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9065 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9066 BIT STRING wrapper always have zero unused bits.
9069 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9072 *) Make the top-level INSTALL documentation easier to understand.
9075 *) Makefiles updated to exit if an error occurs in a sub-directory
9076 make (including if user presses ^C) [Paul Sutton]
9078 *) Make Montgomery context stuff explicit in RSA data structure.
9081 *) Fix build order of pem and err to allow for generated pem.h.
9084 *) Fix renumbering bug in X509_NAME_delete_entry().
9087 *) Enhanced the err-ins.pl script so it makes the error library number
9088 global and can add a library name. This is needed for external ASN1 and
9089 other error libraries.
9092 *) Fixed sk_insert which never worked properly.
9095 *) Fix ASN1 macros so they can handle indefinite length construted
9096 EXPLICIT tags. Some non standard certificates use these: they can now
9100 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9101 into a single doc/ssleay.txt bundle. This way the information is still
9102 preserved but no longer messes up this directory. Now it's new room for
9103 the new set of documenation files.
9104 [Ralf S. Engelschall]
9106 *) SETs were incorrectly DER encoded. This was a major pain, because they
9107 shared code with SEQUENCEs, which aren't coded the same. This means that
9108 almost everything to do with SETs or SEQUENCEs has either changed name or
9109 number of arguments.
9110 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9112 *) Fix test data to work with the above.
9115 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9116 was already fixed by Eric for 0.9.1 it seems.
9117 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9119 *) Autodetect FreeBSD3.
9122 *) Fix various bugs in Configure. This affects the following platforms:
9126 unixware-2.0-pentium
9130 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9131 before they are needed.
9134 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9138 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9140 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9141 changed SSLeay to OpenSSL in version strings.
9142 [Ralf S. Engelschall]
9144 *) Some fixups to the top-level documents.
9147 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9148 because the symlink to include/ was missing.
9149 [Ralf S. Engelschall]
9151 *) Incorporated the popular no-RSA/DSA-only patches
9152 which allow to compile a RSA-free SSLeay.
9153 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9155 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9156 when "ssleay" is still not found.
9157 [Ralf S. Engelschall]
9159 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9160 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9162 *) Updated the README file.
9163 [Ralf S. Engelschall]
9165 *) Added various .cvsignore files in the CVS repository subdirs
9166 to make a "cvs update" really silent.
9167 [Ralf S. Engelschall]
9169 *) Recompiled the error-definition header files and added
9170 missing symbols to the Win32 linker tables.
9171 [Ralf S. Engelschall]
9173 *) Cleaned up the top-level documents;
9174 o new files: CHANGES and LICENSE
9175 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9176 o merged COPYRIGHT into LICENSE
9177 o removed obsolete TODO file
9178 o renamed MICROSOFT to INSTALL.W32
9179 [Ralf S. Engelschall]
9181 *) Removed dummy files from the 0.9.1b source tree:
9182 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9183 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9184 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9185 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9186 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9187 [Ralf S. Engelschall]
9189 *) Added various platform portability fixes.
9192 *) The Genesis of the OpenSSL rpject:
9193 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9194 Young and Tim J. Hudson created while they were working for C2Net until
9196 [The OpenSSL Project]
9199 Changes between 0.9.0b and 0.9.1b [not released]
9201 *) Updated a few CA certificates under certs/
9204 *) Changed some BIGNUM api stuff.
9207 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9208 DGUX x86, Linux Alpha, etc.
9211 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9212 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9216 *) Add -strparse option to asn1pars program which parses nested
9218 [Dr Stephen Henson <shenson@bigfoot.com>]
9220 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9223 *) DSA fix for "ca" program.
9226 *) Added "-genkey" option to "dsaparam" program.
9229 *) Added RIPE MD160 (rmd160) message digest.
9232 *) Added -a (all) option to "ssleay version" command.
9235 *) Added PLATFORM define which is the id given to Configure.
9238 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9241 *) Extended the ASN.1 parser routines.
9244 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9247 *) Added a BN_CTX to the BN library.
9250 *) Fixed the weak key values in DES library
9253 *) Changed API in EVP library for cipher aliases.
9256 *) Added support for RC2/64bit cipher.
9259 *) Converted the lhash library to the crypto/mem.c functions.
9262 *) Added more recognized ASN.1 object ids.
9265 *) Added more RSA padding checks for SSL/TLS.
9268 *) Added BIO proxy/filter functionality.
9271 *) Added extra_certs to SSL_CTX which can be used
9272 send extra CA certificates to the client in the CA cert chain sending
9273 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9276 *) Now Fortezza is denied in the authentication phase because
9277 this is key exchange mechanism is not supported by SSLeay at all.
9280 *) Additional PKCS1 checks.
9283 *) Support the string "TLSv1" for all TLS v1 ciphers.
9286 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9287 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9290 *) Fixed a few memory leaks.
9293 *) Fixed various code and comment typos.
9296 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9297 bytes sent in the client random.
9298 [Edward Bishop <ebishop@spyglass.com>]