5 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
7 *) Disable code workaround for ancient and obsolete Netscape browsers
8 and servers: an attacker can use it in a ciphersuite downgrade attack.
9 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
12 *) Fixed J-PAKE implementation error, originally discovered by
13 Sebastien Martini, further info and confirmation from Stefan
14 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
17 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
19 *) Fix extension code to avoid race conditions which can result in a buffer
20 overrun vulnerability: resumed sessions must not be modified as they can
21 be shared by multiple threads. CVE-2010-3864
24 *) Fix WIN32 build system to correctly link an ENGINE directory into
28 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
30 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
32 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
34 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
36 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
37 context. The operation can be customised via the ctrl mechanism in
38 case ENGINEs want to include additional functionality.
41 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
44 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
45 output hashes compatible with older versions of OpenSSL.
46 [Willy Weisz <weisz@vcpc.univie.ac.at>]
48 *) Fix compression algorithm handling: if resuming a session use the
49 compression algorithm of the resumed session instead of determining
50 it from client hello again. Don't allow server to change algorithm.
53 *) Add load_crls() function to apps tidying load_certs() too. Add option
54 to verify utility to allow additional CRLs to be included.
57 *) Update OCSP request code to permit adding custom headers to the request:
58 some responders need this.
61 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
63 [Julia Lawall <julia@diku.dk>]
65 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
66 needlessly dereferenced structures, used obsolete functions and
67 didn't handle all updated verify codes correctly.
70 *) Disable MD2 in the default configuration.
73 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
74 indicate the initial BIO being pushed or popped. This makes it possible
75 to determine whether the BIO is the one explicitly called or as a result
76 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
77 it handles reference counts correctly and doesn't zero out the I/O bio
78 when it is not being explicitly popped. WARNING: applications which
79 included workarounds for the old buggy behaviour will need to be modified
80 or they could free up already freed BIOs.
83 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
84 renaming to all platforms (within the 0.9.8 branch, this was
85 done conditionally on Netware platforms to avoid a name clash).
86 [Guenter <lists@gknw.net>]
88 *) Add ECDHE and PSK support to DTLS.
89 [Michael Tuexen <tuexen@fh-muenster.de>]
91 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
95 *) Add "missing" function EVP_MD_flags() (without this the only way to
96 retrieve a digest flags is by accessing the structure directly. Update
97 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
98 or cipher is registered as in the "from" argument. Print out all
99 registered digests in the dgst usage message instead of manually
100 attempting to work them out.
103 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
104 this allows the use of compression and extensions. Change default cipher
105 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
106 by default unless an application cipher string requests it.
109 *) Alter match criteria in PKCS12_parse(). It used to try to use local
110 key ids to find matching certificates and keys but some PKCS#12 files
111 don't follow the (somewhat unwritten) rules and this strategy fails.
112 Now just gather all certificates together and the first private key
113 then look for the first certificate that matches the key.
116 *) Support use of registered digest and cipher names for dgst and cipher
117 commands instead of having to add each one as a special case. So now
124 openssl dgst -sha256 foo
126 and this works for ENGINE based algorithms too.
130 *) Update Gost ENGINE to support parameter files.
131 [Victor B. Wagner <vitus@cryptocom.ru>]
133 *) Support GeneralizedTime in ca utility.
134 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
136 *) Enhance the hash format used for certificate directory links. The new
137 form uses the canonical encoding (meaning equivalent names will work
138 even if they aren't identical) and uses SHA1 instead of MD5. This form
139 is incompatible with the older format and as a result c_rehash should
140 be used to rebuild symbolic links.
143 *) Make PKCS#8 the default write format for private keys, replacing the
144 traditional format. This form is standardised, more secure and doesn't
145 include an implicit MD5 dependency.
148 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
149 committed to OpenSSL should pass this lot as a minimum.
152 *) Add session ticket override functionality for use by EAP-FAST.
153 [Jouni Malinen <j@w1.fi>]
155 *) Modify HMAC functions to return a value. Since these can be implemented
156 in an ENGINE errors can occur.
159 *) Type-checked OBJ_bsearch_ex.
162 *) Type-checked OBJ_bsearch. Also some constification necessitated
163 by type-checking. Still to come: TXT_DB, bsearch(?),
164 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
168 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
169 seconds to a tm structure directly, instead of going through OS
170 specific date routines. This avoids any issues with OS routines such
171 as the year 2038 bug. New *_adj() functions for ASN1 time structures
172 and X509_time_adj_ex() to cover the extended range. The existing
173 X509_time_adj() is still usable and will no longer have any date issues.
176 *) Delta CRL support. New use deltas option which will attempt to locate
177 and search any appropriate delta CRLs available.
179 This work was sponsored by Google.
182 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
183 code and add additional score elements. Validate alternate CRL paths
184 as part of the CRL checking and indicate a new error "CRL path validation
185 error" in this case. Applications wanting additional details can use
186 the verify callback and check the new "parent" field. If this is not
187 NULL CRL path validation is taking place. Existing applications wont
188 see this because it requires extended CRL support which is off by
191 This work was sponsored by Google.
194 *) Support for freshest CRL extension.
196 This work was sponsored by Google.
199 *) Initial indirect CRL support. Currently only supported in the CRLs
200 passed directly and not via lookup. Process certificate issuer
201 CRL entry extension and lookup CRL entries by bother issuer name
202 and serial number. Check and process CRL issuer entry in IDP extension.
204 This work was sponsored by Google.
207 *) Add support for distinct certificate and CRL paths. The CRL issuer
208 certificate is validated separately in this case. Only enabled if
209 an extended CRL support flag is set: this flag will enable additional
210 CRL functionality in future.
212 This work was sponsored by Google.
215 *) Add support for policy mappings extension.
217 This work was sponsored by Google.
220 *) Fixes to pathlength constraint, self issued certificate handling,
221 policy processing to align with RFC3280 and PKITS tests.
223 This work was sponsored by Google.
226 *) Support for name constraints certificate extension. DN, email, DNS
227 and URI types are currently supported.
229 This work was sponsored by Google.
232 *) To cater for systems that provide a pointer-based thread ID rather
233 than numeric, deprecate the current numeric thread ID mechanism and
234 replace it with a structure and associated callback type. This
235 mechanism allows a numeric "hash" to be extracted from a thread ID in
236 either case, and on platforms where pointers are larger than 'long',
237 mixing is done to help ensure the numeric 'hash' is usable even if it
238 can't be guaranteed unique. The default mechanism is to use "&errno"
239 as a pointer-based thread ID to distinguish between threads.
241 Applications that want to provide their own thread IDs should now use
242 CRYPTO_THREADID_set_callback() to register a callback that will call
243 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
245 Note that ERR_remove_state() is now deprecated, because it is tied
246 to the assumption that thread IDs are numeric. ERR_remove_state(0)
247 to free the current thread's error state should be replaced by
248 ERR_remove_thread_state(NULL).
250 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
251 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
252 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
253 application was previously providing a numeric thread callback that
254 was inappropriate for distinguishing threads, then uniqueness might
255 have been obtained with &errno that happened immediately in the
256 intermediate development versions of OpenSSL; this is no longer the
257 case, the numeric thread callback will now override the automatic use
259 [Geoff Thorpe, with help from Bodo Moeller]
261 *) Initial support for different CRL issuing certificates. This covers a
262 simple case where the self issued certificates in the chain exist and
263 the real CRL issuer is higher in the existing chain.
265 This work was sponsored by Google.
268 *) Removed effectively defunct crypto/store from the build.
271 *) Revamp of STACK to provide stronger type-checking. Still to come:
272 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
273 ASN1_STRING, CONF_VALUE.
276 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
277 RAM on SSL connections. This option can save about 34k per idle SSL.
280 *) Revamp of LHASH to provide stronger type-checking. Still to come:
281 STACK, TXT_DB, bsearch, qsort.
284 *) Initial support for Cryptographic Message Syntax (aka CMS) based
285 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
286 support for data, signedData, compressedData, digestedData and
287 encryptedData, envelopedData types included. Scripts to check against
288 RFC4134 examples draft and interop and consistency checks of many
289 content types and variants.
292 *) Add options to enc utility to support use of zlib compression BIO.
295 *) Extend mk1mf to support importing of options and assembly language
296 files from Configure script, currently only included in VC-WIN32.
297 The assembly language rules can now optionally generate the source
298 files from the associated perl scripts.
301 *) Implement remaining functionality needed to support GOST ciphersuites.
302 Interop testing has been performed using CryptoPro implementations.
303 [Victor B. Wagner <vitus@cryptocom.ru>]
305 *) s390x assembler pack.
308 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
312 *) Implement Opaque PRF Input TLS extension as specified in
313 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
314 official specification yet and no extension type assignment by
315 IANA exists, this extension (for now) will have to be explicitly
316 enabled when building OpenSSL by providing the extension number
317 to use. For example, specify an option
319 -DTLSEXT_TYPE_opaque_prf_input=0x9527
321 to the "config" or "Configure" script to enable the extension,
322 assuming extension number 0x9527 (which is a completely arbitrary
323 and unofficial assignment based on the MD5 hash of the Internet
324 Draft). Note that by doing so, you potentially lose
325 interoperability with other TLS implementations since these might
326 be using the same extension number for other purposes.
328 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
329 opaque PRF input value to use in the handshake. This will create
330 an interal copy of the length-'len' string at 'src', and will
331 return non-zero for success.
333 To get more control and flexibility, provide a callback function
336 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
337 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
341 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
344 Callback function 'cb' will be called in handshakes, and is
345 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
346 Argument 'arg' is for application purposes (the value as given to
347 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
348 be provided to the callback function). The callback function
349 has to return non-zero to report success: usually 1 to use opaque
350 PRF input just if possible, or 2 to enforce use of the opaque PRF
351 input. In the latter case, the library will abort the handshake
352 if opaque PRF input is not successfully negotiated.
354 Arguments 'peerinput' and 'len' given to the callback function
355 will always be NULL and 0 in the case of a client. A server will
356 see the client's opaque PRF input through these variables if
357 available (NULL and 0 otherwise). Note that if the server
358 provides an opaque PRF input, the length must be the same as the
359 length of the client's opaque PRF input.
361 Note that the callback function will only be called when creating
362 a new session (session resumption can resume whatever was
363 previously negotiated), and will not be called in SSL 2.0
364 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
365 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
366 for applications that need to enforce opaque PRF input.
370 *) Update ssl code to support digests other than SHA1+MD5 for handshake
373 [Victor B. Wagner <vitus@cryptocom.ru>]
375 *) Add RFC4507 support to OpenSSL. This includes the corrections in
376 RFC4507bis. The encrypted ticket format is an encrypted encoded
377 SSL_SESSION structure, that way new session features are automatically
380 If a client application caches session in an SSL_SESSION structure
381 support is transparent because tickets are now stored in the encoded
384 The SSL_CTX structure automatically generates keys for ticket
385 protection in servers so again support should be possible
386 with no application modification.
388 If a client or server wishes to disable RFC4507 support then the option
389 SSL_OP_NO_TICKET can be set.
391 Add a TLS extension debugging callback to allow the contents of any client
392 or server extensions to be examined.
394 This work was sponsored by Google.
397 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
398 OpenSSL should now compile cleanly on gcc 4.2
399 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
401 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
402 support including streaming MAC support: this is required for GOST
404 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
406 *) Add option -stream to use PKCS#7 streaming in smime utility. New
407 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
408 to output in BER and PEM format.
411 *) Experimental support for use of HMAC via EVP_PKEY interface. This
412 allows HMAC to be handled via the EVP_DigestSign*() interface. The
413 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
414 ENGINE support for HMAC keys which are unextractable. New -mac and
415 -macopt options to dgst utility.
418 *) New option -sigopt to dgst utility. Update dgst to use
419 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
420 alternative signing paramaters such as X9.31 or PSS in the dgst
424 *) Change ssl_cipher_apply_rule(), the internal function that does
425 the work each time a ciphersuite string requests enabling
426 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
427 removing ("!foo+bar") a class of ciphersuites: Now it maintains
428 the order of disabled ciphersuites such that those ciphersuites
429 that most recently went from enabled to disabled not only stay
430 in order with respect to each other, but also have higher priority
431 than other disabled ciphersuites the next time ciphersuites are
434 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
435 the same ciphersuites as with "HIGH" alone, but in a specific
436 order where the PSK ciphersuites come first (since they are the
437 most recently disabled ciphersuites when "HIGH" is parsed).
439 Also, change ssl_create_cipher_list() (using this new
440 funcionality) such that between otherwise identical
441 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
445 *) Change ssl_create_cipher_list() so that it automatically
446 arranges the ciphersuites in reasonable order before starting
447 to process the rule string. Thus, the definition for "DEFAULT"
448 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
449 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
450 This makes it much easier to arrive at a reasonable default order
451 in applications for which anonymous ciphers are OK (meaning
452 that you can't actually use DEFAULT).
453 [Bodo Moeller; suggested by Victor Duchovni]
455 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
456 processing) into multiple integers instead of setting
457 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
458 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
459 (These masks as well as the individual bit definitions are hidden
460 away into the non-exported interface ssl/ssl_locl.h, so this
461 change to the definition of the SSL_CIPHER structure shouldn't
462 affect applications.) This give us more bits for each of these
463 categories, so there is no longer a need to coagulate AES128 and
464 AES256 into a single algorithm bit, and to coagulate Camellia128
465 and Camellia256 into a single algorithm bit, which has led to all
468 Thus, among other things, the kludge introduced in 0.9.7m and
469 0.9.8e for masking out AES256 independently of AES128 or masking
470 out Camellia256 independently of AES256 is not needed here in 0.9.9.
472 With the change, we also introduce new ciphersuite aliases that
473 so far were missing: "AES128", "AES256", "CAMELLIA128", and
477 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
478 Use the leftmost N bytes of the signature input if the input is
479 larger than the prime q (with N being the size in bytes of q).
482 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
483 it yet and it is largely untested.
486 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
489 *) Initial incomplete changes to avoid need for function casts in OpenSSL
490 some compilers (gcc 4.2 and later) reject their use. Safestack is
491 reimplemented. Update ASN1 to avoid use of legacy functions.
494 *) Win32/64 targets are linked with Winsock2.
497 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
498 to external functions. This can be used to increase CRL handling
499 efficiency especially when CRLs are very large by (for example) storing
500 the CRL revoked certificates in a database.
503 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
504 new CRLs added to a directory can be used. New command line option
505 -verify_return_error to s_client and s_server. This causes real errors
506 to be returned by the verify callback instead of carrying on no matter
507 what. This reflects the way a "real world" verify callback would behave.
510 *) GOST engine, supporting several GOST algorithms and public key formats.
511 Kindly donated by Cryptocom.
514 *) Partial support for Issuing Distribution Point CRL extension. CRLs
515 partitioned by DP are handled but no indirect CRL or reason partitioning
516 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
517 selected via a scoring technique which handles IDP and AKID in CRLs.
520 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
521 will ultimately be used for all verify operations: this will remove the
522 X509_STORE dependency on certificate verification and allow alternative
523 lookup methods. X509_STORE based implementations of these two callbacks.
526 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
527 Modify get_crl() to find a valid (unexpired) CRL if possible.
530 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
531 this would be called X509_CRL_cmp() but that name is already used by
532 a function that just compares CRL issuer names. Cache several CRL
533 extensions in X509_CRL structure and cache CRLDP in X509.
536 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
537 this maps equivalent X509_NAME structures into a consistent structure.
538 Name comparison can then be performed rapidly using memcmp().
541 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
545 *) Allow digests to supply their own micalg string for S/MIME type using
546 the ctrl EVP_MD_CTRL_MICALG.
549 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
550 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
551 ctrl. It can then customise the structure before and/or after signing
555 *) New function OBJ_add_sigid() to allow application defined signature OIDs
556 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
557 to free up any added signature OIDs.
560 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
561 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
562 digest and cipher tables. New options added to openssl utility:
563 list-message-digest-algorithms and list-cipher-algorithms.
566 *) Change the array representation of binary polynomials: the list
567 of degrees of non-zero coefficients is now terminated with -1.
568 Previously it was terminated with 0, which was also part of the
569 value; thus, the array representation was not applicable to
570 polynomials where t^0 has coefficient zero. This change makes
571 the array representation useful in a more general context.
574 *) Various modifications and fixes to SSL/TLS cipher string
575 handling. For ECC, the code now distinguishes between fixed ECDH
576 with RSA certificates on the one hand and with ECDSA certificates
577 on the other hand, since these are separate ciphersuites. The
578 unused code for Fortezza ciphersuites has been removed.
580 For consistency with EDH, ephemeral ECDH is now called "EECDH"
581 (not "ECDHE"). For consistency with the code for DH
582 certificates, use of ECDH certificates is now considered ECDH
583 authentication, not RSA or ECDSA authentication (the latter is
584 merely the CA's signing algorithm and not actively used in the
587 The temporary ciphersuite alias "ECCdraft" is no longer
588 available, and ECC ciphersuites are no longer excluded from "ALL"
589 and "DEFAULT". The following aliases now exist for RFC 4492
590 ciphersuites, most of these by analogy with the DH case:
592 kECDHr - ECDH cert, signed with RSA
593 kECDHe - ECDH cert, signed with ECDSA
594 kECDH - ECDH cert (signed with either RSA or ECDSA)
595 kEECDH - ephemeral ECDH
596 ECDH - ECDH cert or ephemeral ECDH
602 AECDH - anonymous ECDH
603 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
607 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
608 Use correct micalg parameters depending on digest(s) in signed message.
611 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
612 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
615 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
616 an engine to register a method. Add ENGINE lookups for methods and
617 functional reference processing.
620 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
621 EVP_{Sign,Verify}* which allow an application to customise the signature
625 *) New -resign option to smime utility. This adds one or more signers
626 to an existing PKCS#7 signedData structure. Also -md option to use an
627 alternative message digest algorithm for signing.
630 *) Tidy up PKCS#7 routines and add new functions to make it easier to
631 create PKCS7 structures containing multiple signers. Update smime
632 application to support multiple signers.
635 *) New -macalg option to pkcs12 utility to allow setting of an alternative
639 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
640 Reorganize PBE internals to lookup from a static table using NIDs,
641 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
642 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
643 PRF which will be automatically used with PBES2.
646 *) Replace the algorithm specific calls to generate keys in "req" with the
650 *) Update PKCS#7 enveloped data routines to use new API. This is now
651 supported by any public key method supporting the encrypt operation. A
652 ctrl is added to allow the public key algorithm to examine or modify
653 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
657 *) Add a ctrl to asn1 method to allow a public key algorithm to express
658 a default digest type to use. In most cases this will be SHA1 but some
659 algorithms (such as GOST) need to specify an alternative digest. The
660 return value indicates how strong the prefernce is 1 means optional and
661 2 is mandatory (that is it is the only supported type). Modify
662 ASN1_item_sign() to accept a NULL digest argument to indicate it should
663 use the default md. Update openssl utilities to use the default digest
664 type for signing if it is not explicitly indicated.
667 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
668 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
669 signing method from the key type. This effectively removes the link
670 between digests and public key types.
673 *) Add an OID cross reference table and utility functions. Its purpose is to
674 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
675 rsaEncryption. This will allow some of the algorithm specific hackery
676 needed to use the correct OID to be removed.
679 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
680 structures for PKCS7_sign(). They are now set up by the relevant public
684 *) Add provisional EC pkey method with support for ECDSA and ECDH.
687 *) Add support for key derivation (agreement) in the API, DH method and
691 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
692 public and private key formats. As a side effect these add additional
693 command line functionality not previously available: DSA signatures can be
694 generated and verified using pkeyutl and DH key support and generation in
699 [Oliver Tappe <zooey@hirschkaefer.de>]
701 *) New make target "install_html_docs" installs HTML renditions of the
703 [Oliver Tappe <zooey@hirschkaefer.de>]
705 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
706 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
707 support key and parameter generation and add initial key generation
708 functionality for RSA.
711 *) Add functions for main EVP_PKEY_method operations. The undocumented
712 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
713 EVP_PKEY_{encrypt,decrypt}_old.
716 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
717 key API, doesn't do much yet.
720 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
721 public key algorithms. New option to openssl utility:
722 "list-public-key-algorithms" to print out info.
725 *) Implement the Supported Elliptic Curves Extension for
726 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
729 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
730 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
733 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
734 utilities such as rsa, dsa, dsaparam etc except they process any key
738 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
739 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
740 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
744 *) Initial support for pluggable public key ASN1.
745 De-spaghettify the public key ASN1 handling. Move public and private
746 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
747 algorithm specific handling to a single module within the relevant
748 algorithm directory. Add functions to allow (near) opaque processing
749 of public and private key structures.
752 *) Implement the Supported Point Formats Extension for
753 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
756 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
757 for the psk identity [hint] and the psk callback functions to the
758 SSL_SESSION, SSL and SSL_CTX structure.
761 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
765 SSL_CTX_use_psk_identity_hint
766 SSL_get_psk_identity_hint
768 SSL_use_psk_identity_hint
770 [Mika Kousa and Pasi Eronen of Nokia Corporation]
772 *) Add RFC 3161 compliant time stamp request creation, response generation
773 and response verification functionality.
774 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
776 *) Add initial support for TLS extensions, specifically for the server_name
777 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
778 have new members for a host name. The SSL data structure has an
779 additional member SSL_CTX *initial_ctx so that new sessions can be
780 stored in that context to allow for session resumption, even after the
781 SSL has been switched to a new SSL_CTX in reaction to a client's
782 server_name extension.
784 New functions (subject to change):
787 SSL_get_servername_type()
790 New CTRL codes and macros (subject to change):
792 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
793 - SSL_CTX_set_tlsext_servername_callback()
794 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
795 - SSL_CTX_set_tlsext_servername_arg()
796 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
798 openssl s_client has a new '-servername ...' option.
800 openssl s_server has new options '-servername_host ...', '-cert2 ...',
801 '-key2 ...', '-servername_fatal' (subject to change). This allows
802 testing the HostName extension for a specific single host name ('-cert'
803 and '-key' remain fallbacks for handshakes without HostName
804 negotiation). If the unrecogninzed_name alert has to be sent, this by
805 default is a warning; it becomes fatal with the '-servername_fatal'
808 [Peter Sylvester, Remy Allais, Christophe Renou]
810 *) Whirlpool hash implementation is added.
813 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
814 bn(64,32). Because of instruction set limitations it doesn't have
815 any negative impact on performance. This was done mostly in order
816 to make it possible to share assembler modules, such as bn_mul_mont
817 implementations, between 32- and 64-bit builds without hassle.
820 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
821 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
825 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
826 dedicated Montgomery multiplication procedure, is introduced.
827 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
828 "64-bit" performance on certain 32-bit targets.
831 *) New option SSL_OP_NO_COMP to disable use of compression selectively
832 in SSL structures. New SSL ctrl to set maximum send fragment size.
833 Save memory by seeting the I/O buffer sizes dynamically instead of
834 using the maximum available value.
837 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
838 in addition to the text details.
841 *) Very, very preliminary EXPERIMENTAL support for printing of general
842 ASN1 structures. This currently produces rather ugly output and doesn't
843 handle several customised structures at all.
846 *) Integrated support for PVK file format and some related formats such
847 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
848 these in the 'rsa' and 'dsa' utilities.
851 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
854 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
855 place for the (very old) "NETSCAPE" format certificates which are now
856 handled using new ASN1 code equivalents.
859 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
860 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
861 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
864 *) Modify CRL distribution points extension code to print out previously
865 unsupported fields. Enhance extension setting code to allow setting of
869 *) Add print and set support for Issuing Distribution Point CRL extension.
872 *) Change 'Configure' script to enable Camellia by default.
875 Changes between 0.9.8o and 0.9.8p [xx XXX xxxx]
877 *) Fix extension code to avoid race conditions which can result in a buffer
878 overrun vulnerability: resumed sessions must not be modified as they can
879 be shared by multiple threads. CVE-2010-3864
881 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
884 *) Don't reencode certificate when calculating signature: cache and use
885 the original encoding instead. This makes signature verification of
886 some broken encodings work correctly.
889 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
890 is also one of the inputs.
891 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
893 *) Don't repeatedly append PBE algorithms to table if they already exist.
894 Sort table on each new add. This effectively makes the table read only
895 after all algorithms are added and subsequent calls to PKCS12_pbe_add
899 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
901 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
904 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
905 access or freeing data twice (CVE-2010-0742)
906 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
908 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
909 common in certificates and some applications which only call
910 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
914 Reduce copying into .apps and .test in makevms.com
915 Don't try to use blank CA certificate in CA.com
916 Allow use of C files from original directories in maketests.com
917 [Steven M. Schweda" <sms@antinode.info>]
919 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
921 *) When rejecting SSL/TLS records due to an incorrect version number, never
922 update s->server with a new major version number. As of
923 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
924 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
925 the previous behavior could result in a read attempt at NULL when
926 receiving specific incorrect SSL/TLS records once record payload
927 protection is active. (CVE-2010-0740)
928 [Bodo Moeller, Adam Langley <agl@chromium.org>]
930 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
931 could be crashed if the relevant tables were not present (e.g. chrooted).
932 [Tomas Hoger <thoger@redhat.com>]
934 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
936 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
937 [Martin Olsson, Neel Mehta]
939 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
940 accommodate for stack sorting, always a write lock!).
943 *) On some versions of WIN32 Heap32Next is very slow. This can cause
944 excessive delays in the RAND_poll(): over a minute. As a workaround
945 include a time check in the inner Heap32Next loop too.
948 *) The code that handled flushing of data in SSL/TLS originally used the
949 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
950 the problem outlined in PR#1949. The fix suggested there however can
951 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
952 of Apache). So instead simplify the code to flush unconditionally.
953 This should be fine since flushing with no data to flush is a no op.
956 *) Handle TLS versions 2.0 and later properly and correctly use the
957 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
958 off ancient servers have a habit of sticking around for a while...
961 *) Modify compression code so it frees up structures without using the
962 ex_data callbacks. This works around a problem where some applications
963 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
964 restarting) then use compression (e.g. SSL with compression) later.
965 This results in significant per-connection memory leaks and
966 has caused some security issues including CVE-2008-1678 and
970 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
971 change when encrypting or decrypting.
974 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
975 connect and renegotiate with servers which do not support RI.
976 Until RI is more widely deployed this option is enabled by default.
979 *) Add "missing" ssl ctrls to clear options and mode.
982 *) If client attempts to renegotiate and doesn't support RI respond with
983 a no_renegotiation alert as required by RFC5746. Some renegotiating
984 TLS clients will continue a connection gracefully when they receive
985 the alert. Unfortunately OpenSSL mishandled this alert and would hang
986 waiting for a server hello which it will never receive. Now we treat a
987 received no_renegotiation alert as a fatal error. This is because
988 applications requesting a renegotiation might well expect it to succeed
989 and would have no code in place to handle the server denying it so the
990 only safe thing to do is to terminate the connection.
993 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
994 peer supports secure renegotiation and 0 otherwise. Print out peer
995 renegotiation support in s_client/s_server.
998 *) Replace the highly broken and deprecated SPKAC certification method with
999 the updated NID creation version. This should correctly handle UTF8.
1002 *) Implement RFC5746. Re-enable renegotiation but require the extension
1003 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1004 turns out to be a bad idea. It has been replaced by
1005 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1006 SSL_CTX_set_options(). This is really not recommended unless you
1007 know what you are doing.
1008 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1010 *) Fixes to stateless session resumption handling. Use initial_ctx when
1011 issuing and attempting to decrypt tickets in case it has changed during
1012 servername handling. Use a non-zero length session ID when attempting
1013 stateless session resumption: this makes it possible to determine if
1014 a resumption has occurred immediately after receiving server hello
1015 (several places in OpenSSL subtly assume this) instead of later in
1019 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1020 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1021 fixes for a few places where the return code is not checked
1023 [Julia Lawall <julia@diku.dk>]
1025 *) Add --strict-warnings option to Configure script to include devteam
1026 warnings in other configurations.
1029 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1030 makes it possible to install openssl libraries in locations which
1031 have names other than "lib", for example "/usr/lib64" which some
1033 [Steve Henson, based on patch from Jeremy Utley]
1035 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1036 X690 8.9.12 and can produce some misleading textual output of OIDs.
1037 [Steve Henson, reported by Dan Kaminsky]
1039 *) Delete MD2 from algorithm tables. This follows the recommendation in
1040 several standards that it is not used in new applications due to
1041 several cryptographic weaknesses. For binary compatibility reasons
1042 the MD2 API is still compiled in by default.
1045 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1049 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1050 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1052 [Guenter <lists@gknw.net>]
1054 *) Fix the server certificate chain building code to use X509_verify_cert(),
1055 it used to have an ad-hoc builder which was unable to cope with anything
1056 other than a simple chain.
1057 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1059 *) Don't check self signed certificate signatures in X509_verify_cert()
1060 by default (a flag can override this): it just wastes time without
1061 adding any security. As a useful side effect self signed root CAs
1062 with non-FIPS digests are now usable in FIPS mode.
1065 *) In dtls1_process_out_of_seq_message() the check if the current message
1066 is already buffered was missing. For every new message was memory
1067 allocated, allowing an attacker to perform an denial of service attack
1068 with sending out of seq handshake messages until there is no memory
1069 left. Additionally every future messege was buffered, even if the
1070 sequence number made no sense and would be part of another handshake.
1071 So only messages with sequence numbers less than 10 in advance will be
1072 buffered. (CVE-2009-1378)
1073 [Robin Seggelmann, discovered by Daniel Mentz]
1075 *) Records are buffered if they arrive with a future epoch to be
1076 processed after finishing the corresponding handshake. There is
1077 currently no limitation to this buffer allowing an attacker to perform
1078 a DOS attack with sending records with future epochs until there is no
1079 memory left. This patch adds the pqueue_size() function to detemine
1080 the size of a buffer and limits the record buffer to 100 entries.
1082 [Robin Seggelmann, discovered by Daniel Mentz]
1084 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1085 parent structure is freed. (CVE-2009-1379)
1088 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1089 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1092 [Ilya O. <vrghost@gmail.com>]
1094 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1096 *) Disable renegotiation completely - this fixes a severe security
1097 problem (CVE-2009-3555) at the cost of breaking all
1098 renegotiation. Renegotiation can be re-enabled by setting
1099 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1100 run-time. This is really not recommended unless you know what
1104 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1106 *) Don't set val to NULL when freeing up structures, it is freed up by
1107 underlying code. If sizeof(void *) > sizeof(long) this can result in
1108 zeroing past the valid field. (CVE-2009-0789)
1109 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1111 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1112 checked correctly. This would allow some invalid signed attributes to
1113 appear to verify correctly. (CVE-2009-0591)
1114 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1116 *) Reject UniversalString and BMPString types with invalid lengths. This
1117 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1118 a legal length. (CVE-2009-0590)
1121 *) Set S/MIME signing as the default purpose rather than setting it
1122 unconditionally. This allows applications to override it at the store
1126 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1127 to handle some structures.
1130 *) Improve efficiency of mem_gets: don't search whole buffer each time
1132 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1134 *) New -hex option for openssl rand.
1137 *) Print out UTF8String and NumericString when parsing ASN1.
1140 *) Support NumericString type for name components.
1143 *) Allow CC in the environment to override the automatically chosen
1144 compiler. Note that nothing is done to ensure flags work with the
1148 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1150 *) Properly check EVP_VerifyFinal() and similar return values
1152 [Ben Laurie, Bodo Moeller, Google Security Team]
1154 *) Enable TLS extensions by default.
1157 *) Allow the CHIL engine to be loaded, whether the application is
1158 multithreaded or not. (This does not release the developer from the
1159 obligation to set up the dynamic locking callbacks.)
1160 [Sander Temme <sander@temme.net>]
1162 *) Use correct exit code if there is an error in dgst command.
1163 [Steve Henson; problem pointed out by Roland Dirlewanger]
1165 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1166 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1169 *) Add experimental JPAKE support, including demo authentication in
1170 s_client and s_server.
1173 *) Set the comparison function in v3_addr_canonize().
1174 [Rob Austein <sra@hactrn.net>]
1176 *) Add support for XMPP STARTTLS in s_client.
1177 [Philip Paeps <philip@freebsd.org>]
1179 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1180 to ensure that even with this option, only ciphersuites in the
1181 server's preference list will be accepted. (Note that the option
1182 applies only when resuming a session, so the earlier behavior was
1183 just about the algorithm choice for symmetric cryptography.)
1186 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1188 *) Fix NULL pointer dereference if a DTLS server received
1189 ChangeCipherSpec as first record (CVE-2009-1386).
1192 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1193 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1196 *) The fix in 0.9.8c that supposedly got rid of unsafe
1197 double-checked locking was incomplete for RSA blinding,
1198 addressing just one layer of what turns out to have been
1199 doubly unsafe triple-checked locking.
1201 So now fix this for real by retiring the MONT_HELPER macro
1202 in crypto/rsa/rsa_eay.c.
1204 [Bodo Moeller; problem pointed out by Marius Schilder]
1206 *) Various precautionary measures:
1208 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1210 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1211 (NB: This would require knowledge of the secret session ticket key
1212 to exploit, in which case you'd be SOL either way.)
1214 - Change bn_nist.c so that it will properly handle input BIGNUMs
1215 outside the expected range.
1217 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1220 [Neel Mehta, Bodo Moeller]
1222 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1223 the load fails. Useful for distros.
1224 [Ben Laurie and the FreeBSD team]
1226 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1229 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1232 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1234 This work was sponsored by Logica.
1237 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1238 keystores. Support for SSL/TLS client authentication too.
1239 Not compiled unless enable-capieng specified to Configure.
1241 This work was sponsored by Logica.
1244 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1245 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1246 attribute creation routines such as certifcate requests and PKCS#12
1250 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1252 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1253 handshake which could lead to a cilent crash as found using the
1254 Codenomicon TLS test suite (CVE-2008-1672)
1255 [Steve Henson, Mark Cox]
1257 *) Fix double free in TLS server name extensions which could lead to
1258 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1261 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1263 Clear the error queue to ensure that error entries left from
1264 older function calls do not interfere with the correct operation.
1265 [Lutz Jaenicke, Erik de Castro Lopo]
1267 *) Remove root CA certificates of commercial CAs:
1269 The OpenSSL project does not recommend any specific CA and does not
1270 have any policy with respect to including or excluding any CA.
1271 Therefore it does not make any sense to ship an arbitrary selection
1272 of root CA certificates with the OpenSSL software.
1275 *) RSA OAEP patches to fix two separate invalid memory reads.
1276 The first one involves inputs when 'lzero' is greater than
1277 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1278 before the beginning of from). The second one involves inputs where
1279 the 'db' section contains nothing but zeroes (there is a one-byte
1280 invalid read after the end of 'db').
1281 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1283 *) Partial backport from 0.9.9-dev:
1285 Introduce bn_mul_mont (dedicated Montgomery multiplication
1286 procedure) as a candidate for BIGNUM assembler implementation.
1287 While 0.9.9-dev uses assembler for various architectures, only
1288 x86_64 is available by default here in the 0.9.8 branch, and
1289 32-bit x86 is available through a compile-time setting.
1291 To try the 32-bit x86 assembler implementation, use Configure
1292 option "enable-montasm" (which exists only for this backport).
1294 As "enable-montasm" for 32-bit x86 disclaims code stability
1295 anyway, in this constellation we activate additional code
1296 backported from 0.9.9-dev for further performance improvements,
1297 namely BN_from_montgomery_word. (To enable this otherwise,
1298 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1300 [Andy Polyakov (backport partially by Bodo Moeller)]
1302 *) Add TLS session ticket callback. This allows an application to set
1303 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1304 values. This is useful for key rollover for example where several key
1305 sets may exist with different names.
1308 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1309 This was broken until now in 0.9.8 releases, such that the only way
1310 a registered ENGINE could be used (assuming it initialises
1311 successfully on the host) was to explicitly set it as the default
1312 for the relevant algorithms. This is in contradiction with 0.9.7
1313 behaviour and the documentation. With this fix, when an ENGINE is
1314 registered into a given algorithm's table of implementations, the
1315 'uptodate' flag is reset so that auto-discovery will be used next
1316 time a new context for that algorithm attempts to select an
1318 [Ian Lister (tweaked by Geoff Thorpe)]
1320 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1321 implemention in the following ways:
1323 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1326 Lack of BER streaming support means one pass streaming processing is
1327 only supported if data is detached: setting the streaming flag is
1328 ignored for embedded content.
1330 CMS support is disabled by default and must be explicitly enabled
1331 with the enable-cms configuration option.
1334 *) Update the GMP engine glue to do direct copies between BIGNUM and
1335 mpz_t when openssl and GMP use the same limb size. Otherwise the
1336 existing "conversion via a text string export" trick is still used.
1337 [Paul Sheer <paulsheer@gmail.com>]
1339 *) Zlib compression BIO. This is a filter BIO which compressed and
1340 uncompresses any data passed through it.
1343 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1344 RFC3394 compatible AES key wrapping.
1347 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1348 sets string data without copying. X509_ALGOR_set0() and
1349 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1350 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1351 from an X509_ATTRIBUTE structure optionally checking it occurs only
1352 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1356 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1357 to get the expected BN_FLG_CONSTTIME behavior.
1358 [Bodo Moeller (Google)]
1362 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1363 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1364 - added some more tests to do_tests.pl
1365 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1366 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1367 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1368 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1369 - various changes to netware.pl to enable gcc-cross builds on Win32
1371 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1372 - various changes to fix missing prototype warnings
1373 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1374 - added AES, WHIRLPOOL and CPUID assembler code to build files
1375 - added missing AES assembler make rules to mk1mf.pl
1376 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1377 [Guenter Knauf <eflash@gmx.net>]
1379 *) Implement certificate status request TLS extension defined in RFC3546.
1380 A client can set the appropriate parameters and receive the encoded
1381 OCSP response via a callback. A server can query the supplied parameters
1382 and set the encoded OCSP response in the callback. Add simplified examples
1383 to s_client and s_server.
1386 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1388 *) Fix various bugs:
1389 + Binary incompatibility of ssl_ctx_st structure
1390 + DTLS interoperation with non-compliant servers
1391 + Don't call get_session_cb() without proposed session
1392 + Fix ia64 assembler code
1393 [Andy Polyakov, Steve Henson]
1395 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1397 *) DTLS Handshake overhaul. There were longstanding issues with
1398 OpenSSL DTLS implementation, which were making it impossible for
1399 RFC 4347 compliant client to communicate with OpenSSL server.
1400 Unfortunately just fixing these incompatibilities would "cut off"
1401 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1402 server keeps tolerating non RFC compliant syntax. The opposite is
1403 not true, 0.9.8f client can not communicate with earlier server.
1404 This update even addresses CVE-2007-4995.
1407 *) Changes to avoid need for function casts in OpenSSL: some compilers
1408 (gcc 4.2 and later) reject their use.
1409 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1412 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1413 RFC4507bis. The encrypted ticket format is an encrypted encoded
1414 SSL_SESSION structure, that way new session features are automatically
1417 If a client application caches session in an SSL_SESSION structure
1418 support is transparent because tickets are now stored in the encoded
1421 The SSL_CTX structure automatically generates keys for ticket
1422 protection in servers so again support should be possible
1423 with no application modification.
1425 If a client or server wishes to disable RFC4507 support then the option
1426 SSL_OP_NO_TICKET can be set.
1428 Add a TLS extension debugging callback to allow the contents of any client
1429 or server extensions to be examined.
1431 This work was sponsored by Google.
1434 *) Add initial support for TLS extensions, specifically for the server_name
1435 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1436 have new members for a host name. The SSL data structure has an
1437 additional member SSL_CTX *initial_ctx so that new sessions can be
1438 stored in that context to allow for session resumption, even after the
1439 SSL has been switched to a new SSL_CTX in reaction to a client's
1440 server_name extension.
1442 New functions (subject to change):
1444 SSL_get_servername()
1445 SSL_get_servername_type()
1448 New CTRL codes and macros (subject to change):
1450 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1451 - SSL_CTX_set_tlsext_servername_callback()
1452 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1453 - SSL_CTX_set_tlsext_servername_arg()
1454 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1456 openssl s_client has a new '-servername ...' option.
1458 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1459 '-key2 ...', '-servername_fatal' (subject to change). This allows
1460 testing the HostName extension for a specific single host name ('-cert'
1461 and '-key' remain fallbacks for handshakes without HostName
1462 negotiation). If the unrecogninzed_name alert has to be sent, this by
1463 default is a warning; it becomes fatal with the '-servername_fatal'
1466 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1468 *) Add AES and SSE2 assembly language support to VC++ build.
1471 *) Mitigate attack on final subtraction in Montgomery reduction.
1474 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1475 (which previously caused an internal error).
1478 *) Squeeze another 10% out of IGE mode when in != out.
1481 *) AES IGE mode speedup.
1482 [Dean Gaudet (Google)]
1484 *) Add the Korean symmetric 128-bit cipher SEED (see
1485 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1486 add SEED ciphersuites from RFC 4162:
1488 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1489 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1490 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1491 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1493 To minimize changes between patchlevels in the OpenSSL 0.9.8
1494 series, SEED remains excluded from compilation unless OpenSSL
1495 is configured with 'enable-seed'.
1496 [KISA, Bodo Moeller]
1498 *) Mitigate branch prediction attacks, which can be practical if a
1499 single processor is shared, allowing a spy process to extract
1500 information. For detailed background information, see
1501 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1502 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1503 and Necessary Software Countermeasures"). The core of the change
1504 are new versions BN_div_no_branch() and
1505 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1506 respectively, which are slower, but avoid the security-relevant
1507 conditional branches. These are automatically called by BN_div()
1508 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1509 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1510 remove a conditional branch.
1512 BN_FLG_CONSTTIME is the new name for the previous
1513 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1514 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1515 in the exponent causes BN_mod_exp_mont() to use the alternative
1516 implementation in BN_mod_exp_mont_consttime().) The old name
1517 remains as a deprecated alias.
1519 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1520 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1521 constant-time implementations for more than just exponentiation.
1522 Here too the old name is kept as a deprecated alias.
1524 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1525 the BN_BLINDING structure gets an independent copy of the
1526 modulus. This means that the previous "BIGNUM *m" argument to
1527 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1528 essentially becomes "const BIGNUM *m", although we can't actually
1529 change this in the header file before 0.9.9. It allows
1530 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1531 enable BN_FLG_CONSTTIME.
1533 [Matthew D Wood (Intel Corp)]
1535 *) In the SSL/TLS server implementation, be strict about session ID
1536 context matching (which matters if an application uses a single
1537 external cache for different purposes). Previously,
1538 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1539 set. This did ensure strict client verification, but meant that,
1540 with applications using a single external cache for quite
1541 different requirements, clients could circumvent ciphersuite
1542 restrictions for a given session ID context by starting a session
1543 in a different context.
1546 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1547 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1548 authentication-only ciphersuites.
1551 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1552 not complete and could lead to a possible single byte overflow
1553 (CVE-2007-5135) [Ben Laurie]
1555 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1557 *) Since AES128 and AES256 (and similarly Camellia128 and
1558 Camellia256) share a single mask bit in the logic of
1559 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1560 kludge to work properly if AES128 is available and AES256 isn't
1561 (or if Camellia128 is available and Camellia256 isn't).
1564 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1565 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1566 When a point or a seed is encoded in a BIT STRING, we need to
1567 prevent the removal of trailing zero bits to get the proper DER
1568 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1569 of a NamedBitList, for which trailing 0 bits need to be removed.)
1572 *) Have SSL/TLS server implementation tolerate "mismatched" record
1573 protocol version while receiving ClientHello even if the
1574 ClientHello is fragmented. (The server can't insist on the
1575 particular protocol version it has chosen before the ServerHello
1576 message has informed the client about his choice.)
1579 *) Add RFC 3779 support.
1580 [Rob Austein for ARIN, Ben Laurie]
1582 *) Load error codes if they are not already present instead of using a
1583 static variable. This allows them to be cleanly unloaded and reloaded.
1584 Improve header file function name parsing.
1587 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1588 or CAPABILITY handshake as required by RFCs.
1591 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1593 *) Introduce limits to prevent malicious keys being able to
1594 cause a denial of service. (CVE-2006-2940)
1595 [Steve Henson, Bodo Moeller]
1597 *) Fix ASN.1 parsing of certain invalid structures that can result
1598 in a denial of service. (CVE-2006-2937) [Steve Henson]
1600 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1601 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1603 *) Fix SSL client code which could crash if connecting to a
1604 malicious SSLv2 server. (CVE-2006-4343)
1605 [Tavis Ormandy and Will Drewry, Google Security Team]
1607 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1608 match only those. Before that, "AES256-SHA" would be interpreted
1609 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1610 the same strength classification in 0.9.7h) as we currently only
1611 have a single AES bit in the ciphersuite description bitmap.
1612 That change, however, also applied to ciphersuite strings such as
1613 "RC4-MD5" that intentionally matched multiple ciphersuites --
1614 namely, SSL 2.0 ciphersuites in addition to the more common ones
1615 from SSL 3.0/TLS 1.0.
1617 So we change the selection algorithm again: Naming an explicit
1618 ciphersuite selects this one ciphersuite, and any other similar
1619 ciphersuite (same bitmap) from *other* protocol versions.
1620 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1621 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1623 Since SSL 2.0 does not have any ciphersuites for which the
1624 128/256 bit distinction would be relevant, this works for now.
1625 The proper fix will be to use different bits for AES128 and
1626 AES256, which would have avoided the problems from the beginning;
1627 however, bits are scarce, so we can only do this in a new release
1628 (not just a patchlevel) when we can change the SSL_CIPHER
1629 definition to split the single 'unsigned long mask' bitmap into
1630 multiple values to extend the available space.
1634 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1636 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1637 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1639 *) Add AES IGE and biIGE modes.
1642 *) Change the Unix randomness entropy gathering to use poll() when
1643 possible instead of select(), since the latter has some
1644 undesirable limitations.
1645 [Darryl Miles via Richard Levitte and Bodo Moeller]
1647 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1648 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1649 cannot be implicitly activated as part of, e.g., the "AES" alias.
1650 However, please upgrade to OpenSSL 0.9.9[-dev] for
1651 non-experimental use of the ECC ciphersuites to get TLS extension
1652 support, which is required for curve and point format negotiation
1653 to avoid potential handshake problems.
1656 *) Disable rogue ciphersuites:
1658 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1659 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1660 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1662 The latter two were purportedly from
1663 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1666 Also deactivate the remaining ciphersuites from
1667 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1668 unofficial, and the ID has long expired.
1671 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1672 dual-core machines) and other potential thread-safety issues.
1675 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1676 versions), which is now available for royalty-free use
1677 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1678 Also, add Camellia TLS ciphersuites from RFC 4132.
1680 To minimize changes between patchlevels in the OpenSSL 0.9.8
1681 series, Camellia remains excluded from compilation unless OpenSSL
1682 is configured with 'enable-camellia'.
1685 *) Disable the padding bug check when compression is in use. The padding
1686 bug check assumes the first packet is of even length, this is not
1687 necessarily true if compresssion is enabled and can result in false
1688 positives causing handshake failure. The actual bug test is ancient
1689 code so it is hoped that implementations will either have fixed it by
1690 now or any which still have the bug do not support compression.
1693 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1695 *) When applying a cipher rule check to see if string match is an explicit
1696 cipher suite and only match that one cipher suite if it is.
1699 *) Link in manifests for VC++ if needed.
1700 [Austin Ziegler <halostatue@gmail.com>]
1702 *) Update support for ECC-based TLS ciphersuites according to
1703 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1704 TLS extensions, which are supported starting with the 0.9.9
1705 branch, not in the OpenSSL 0.9.8 branch).
1708 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1709 opaque EVP_CIPHER_CTX handling.
1712 *) Fixes and enhancements to zlib compression code. We now only use
1713 "zlib1.dll" and use the default __cdecl calling convention on Win32
1714 to conform with the standards mentioned here:
1715 http://www.zlib.net/DLL_FAQ.txt
1716 Static zlib linking now works on Windows and the new --with-zlib-include
1717 --with-zlib-lib options to Configure can be used to supply the location
1718 of the headers and library. Gracefully handle case where zlib library
1722 *) Several fixes and enhancements to the OID generation code. The old code
1723 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1724 handle numbers larger than ULONG_MAX, truncated printing and had a
1725 non standard OBJ_obj2txt() behaviour.
1728 *) Add support for building of engines under engine/ as shared libraries
1729 under VC++ build system.
1732 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1733 Hopefully, we will not see any false combination of paths any more.
1736 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1738 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1739 (part of SSL_OP_ALL). This option used to disable the
1740 countermeasure against man-in-the-middle protocol-version
1741 rollback in the SSL 2.0 server implementation, which is a bad
1742 idea. (CVE-2005-2969)
1744 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1745 for Information Security, National Institute of Advanced Industrial
1746 Science and Technology [AIST], Japan)]
1748 *) Add two function to clear and return the verify parameter flags.
1751 *) Keep cipherlists sorted in the source instead of sorting them at
1752 runtime, thus removing the need for a lock.
1755 *) Avoid some small subgroup attacks in Diffie-Hellman.
1756 [Nick Mathewson and Ben Laurie]
1758 *) Add functions for well-known primes.
1761 *) Extended Windows CE support.
1762 [Satoshi Nakamura and Andy Polyakov]
1764 *) Initialize SSL_METHOD structures at compile time instead of during
1765 runtime, thus removing the need for a lock.
1768 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1769 attempting to decrypt each encrypted key in turn. Add support to
1773 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1775 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1778 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1781 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1782 key into the same file any more.
1785 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1788 *) Add -utf8 command line and config file option to 'ca'.
1789 [Stefan <stf@udoma.org]
1791 *) Removed the macro des_crypt(), as it seems to conflict with some
1792 libraries. Use DES_crypt().
1795 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1796 involves renaming the source and generated shared-libs for
1797 both. The engines will accept the corrected or legacy ids
1798 ('ncipher' and '4758_cca' respectively) when binding. NB,
1799 this only applies when building 'shared'.
1800 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1802 *) Add attribute functions to EVP_PKEY structure. Modify
1803 PKCS12_create() to recognize a CSP name attribute and
1804 use it. Make -CSP option work again in pkcs12 utility.
1807 *) Add new functionality to the bn blinding code:
1808 - automatic re-creation of the BN_BLINDING parameters after
1809 a fixed number of uses (currently 32)
1810 - add new function for parameter creation
1811 - introduce flags to control the update behaviour of the
1812 BN_BLINDING parameters
1813 - hide BN_BLINDING structure
1814 Add a second BN_BLINDING slot to the RSA structure to improve
1815 performance when a single RSA object is shared among several
1819 *) Add support for DTLS.
1820 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1822 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1823 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1826 *) Remove buggy and incompletet DH cert support from
1827 ssl/ssl_rsa.c and ssl/s3_both.c
1830 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1831 the apps/openssl applications.
1834 *) Compile clean with "-Wall -Wmissing-prototypes
1835 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1836 DEBUG_SAFESTACK must also be set.
1839 *) Change ./Configure so that certain algorithms can be disabled by default.
1840 The new counterpiece to "no-xxx" is "enable-xxx".
1842 The patented RC5 and MDC2 algorithms will now be disabled unless
1843 "enable-rc5" and "enable-mdc2", respectively, are specified.
1845 (IDEA remains enabled despite being patented. This is because IDEA
1846 is frequently required for interoperability, and there is no license
1847 fee for non-commercial use. As before, "no-idea" can be used to
1848 avoid this algorithm.)
1852 *) Add processing of proxy certificates (see RFC 3820). This work was
1853 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1854 EGEE (Enabling Grids for E-science in Europe).
1857 *) RC4 performance overhaul on modern architectures/implementations, such
1858 as Intel P4, IA-64 and AMD64.
1861 *) New utility extract-section.pl. This can be used specify an alternative
1862 section number in a pod file instead of having to treat each file as
1863 a separate case in Makefile. This can be done by adding two lines to the
1866 =for comment openssl_section:XXX
1868 The blank line is mandatory.
1872 *) New arguments -certform, -keyform and -pass for s_client and s_server
1873 to allow alternative format key and certificate files and passphrase
1877 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1878 update associated structures and add various utility functions.
1880 Add new policy related verify parameters, include policy checking in
1881 standard verify code. Enhance 'smime' application with extra parameters
1882 to support policy checking and print out.
1885 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1886 Nehemiah processors. These extensions support AES encryption in hardware
1887 as well as RNG (though RNG support is currently disabled).
1888 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1890 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1893 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1894 [Andy Polyakov and a number of other people]
1896 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1897 implementation contributed by IBM.
1898 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1900 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1901 exponent rather than 'unsigned long'. There is a corresponding change to
1902 the new 'rsa_keygen' element of the RSA_METHOD structure.
1903 [Jelte Jansen, Geoff Thorpe]
1905 *) Functionality for creating the initial serial number file is now
1906 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1908 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1909 number file to 1, which is bound to cause problems. To avoid
1910 the problems while respecting compatibility between different 0.9.7
1911 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1912 CA.pl for serial number initialization. With the new release 0.9.8,
1913 we can fix the problem directly in the 'ca' utility.)
1916 *) Reduced header interdepencies by declaring more opaque objects in
1917 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1918 give fewer recursive includes, which could break lazy source code - so
1919 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1920 developers should define this symbol when building and using openssl to
1921 ensure they track the recommended behaviour, interfaces, [etc], but
1922 backwards-compatible behaviour prevails when this isn't defined.
1925 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1928 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1929 This will generate a random key of the appropriate length based on the
1930 cipher context. The EVP_CIPHER can provide its own random key generation
1931 routine to support keys of a specific form. This is used in the des and
1932 3des routines to generate a key of the correct parity. Update S/MIME
1933 code to use new functions and hence generate correct parity DES keys.
1934 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1935 valid (weak or incorrect parity).
1938 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1939 as looking them up. This is useful when the verified structure may contain
1940 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1941 present unless the new PKCS7_NO_CRL flag is asserted.
1944 *) Extend ASN1 oid configuration module. It now additionally accepts the
1947 shortName = some long name, 1.2.3.4
1950 *) Reimplemented the BN_CTX implementation. There is now no more static
1951 limitation on the number of variables it can handle nor the depth of the
1952 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1953 information can now expand as required, and rather than having a single
1954 static array of bignums, BN_CTX now uses a linked-list of such arrays
1955 allowing it to expand on demand whilst maintaining the usefulness of
1956 BN_CTX's "bundling".
1959 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1960 to allow all RSA operations to function using a single BN_CTX.
1963 *) Preliminary support for certificate policy evaluation and checking. This
1964 is initially intended to pass the tests outlined in "Conformance Testing
1965 of Relying Party Client Certificate Path Processing Logic" v1.07.
1968 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1969 remained unused and not that useful. A variety of other little bignum
1970 tweaks and fixes have also been made continuing on from the audit (see
1974 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1975 associated ASN1, EVP and SSL functions and old ASN1 macros.
1978 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1979 and this should never fail. So the return value from the use of
1980 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1981 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1984 *) BN_CTX_get() should return zero-valued bignums, providing the same
1985 initialised value as BN_new().
1986 [Geoff Thorpe, suggested by Ulf Möller]
1988 *) Support for inhibitAnyPolicy certificate extension.
1991 *) An audit of the BIGNUM code is underway, for which debugging code is
1992 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1993 is considered valid when processing BIGNUMs, and causes execution to
1994 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1995 further steps are taken to deliberately pollute unused data in BIGNUM
1996 structures to try and expose faulty code further on. For now, openssl will
1997 (in its default mode of operation) continue to tolerate the inconsistent
1998 forms that it has tolerated in the past, but authors and packagers should
1999 consider trying openssl and their own applications when compiled with
2000 these debugging symbols defined. It will help highlight potential bugs in
2001 their own code, and will improve the test coverage for OpenSSL itself. At
2002 some point, these tighter rules will become openssl's default to improve
2003 maintainability, though the assert()s and other overheads will remain only
2004 in debugging configurations. See bn.h for more details.
2005 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2007 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2008 that can only be obtained through BN_CTX_new() (which implicitly
2009 initialises it). The presence of this function only made it possible
2010 to overwrite an existing structure (and cause memory leaks).
2013 *) Because of the callback-based approach for implementing LHASH as a
2014 template type, lh_insert() adds opaque objects to hash-tables and
2015 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2016 to clean up those corresponding objects before destroying the hash table
2017 (and losing the object pointers). So some over-zealous constifications in
2018 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2019 objects as "const" and the lh_doall[_arg] callback wrappers are not
2020 prototyped to have "const" restrictions on the object pointers they are
2021 given (and so aren't required to cast them away any more).
2024 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2025 (speed) prefers to use its own implementation. The two implementations
2026 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2027 its object type properly exposed (MS_TM) instead of casting to/from "char
2028 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2029 aren't necessarily the greatest nomenclatures - but this is what was used
2030 internally to the implementation so I've used that for now.
2033 *) Ensure that deprecated functions do not get compiled when
2034 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2035 the self-tests were still using deprecated key-generation functions so
2036 these have been updated also.
2039 *) Reorganise PKCS#7 code to separate the digest location functionality
2040 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2041 New function PKCS7_set_digest() to set the digest type for PKCS#7
2042 digestedData type. Add additional code to correctly generate the
2043 digestedData type and add support for this type in PKCS7 initialization
2047 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2048 structure of type "other".
2051 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2052 sure the loop does correctly stop and breaking ("division by zero")
2053 modulus operations are not performed. The (pre-generated) prime
2054 table crypto/bn/bn_prime.h was already correct, but it could not be
2055 re-generated on some platforms because of the "division by zero"
2056 situation in the script.
2057 [Ralf S. Engelschall]
2059 *) Update support for ECC-based TLS ciphersuites according to
2060 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2061 SHA-1 now is only used for "small" curves (where the
2062 representation of a field element takes up to 24 bytes); for
2063 larger curves, the field element resulting from ECDH is directly
2064 used as premaster secret.
2065 [Douglas Stebila (Sun Microsystems Laboratories)]
2067 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2068 curve secp160r1 to the tests.
2069 [Douglas Stebila (Sun Microsystems Laboratories)]
2071 *) Add the possibility to load symbols globally with DSO.
2072 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2074 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2075 control of the error stack.
2078 *) Add support for STORE in ENGINE.
2081 *) Add the STORE type. The intention is to provide a common interface
2082 to certificate and key stores, be they simple file-based stores, or
2083 HSM-type store, or LDAP stores, or...
2084 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2087 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2088 pass a list of arguments to any function as well as provide a way
2089 for a function to pass data back to the caller.
2092 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2093 works like BUF_strdup() but can be used to duplicate a portion of
2094 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2098 *) Add the function sk_find_ex() which works like sk_find(), but will
2099 return an index to an element even if an exact match couldn't be
2100 found. The index is guaranteed to point at the element where the
2101 searched-for key would be inserted to preserve sorting order.
2104 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2105 takes an extra flags argument for optional functionality. Currently,
2106 the following flags are defined:
2108 OBJ_BSEARCH_VALUE_ON_NOMATCH
2109 This one gets OBJ_bsearch_ex() to return a pointer to the first
2110 element where the comparing function returns a negative or zero
2113 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2114 This one gets OBJ_bsearch_ex() to return a pointer to the first
2115 element where the comparing function returns zero. This is useful
2116 if there are more than one element where the comparing function
2120 *) Make it possible to create self-signed certificates with 'openssl ca'
2121 in such a way that the self-signed certificate becomes part of the
2122 CA database and uses the same mechanisms for serial number generation
2123 as all other certificate signing. The new flag '-selfsign' enables
2124 this functionality. Adapt CA.sh and CA.pl.in.
2127 *) Add functionality to check the public key of a certificate request
2128 against a given private. This is useful to check that a certificate
2129 request can be signed by that key (self-signing).
2132 *) Make it possible to have multiple active certificates with the same
2133 subject in the CA index file. This is done only if the keyword
2134 'unique_subject' is set to 'no' in the main CA section (default
2135 if 'CA_default') of the configuration file. The value is saved
2136 with the database itself in a separate index attribute file,
2137 named like the index file with '.attr' appended to the name.
2140 *) Generate muti valued AVAs using '+' notation in config files for
2144 *) Support for nameConstraints certificate extension.
2147 *) Support for policyConstraints certificate extension.
2150 *) Support for policyMappings certificate extension.
2153 *) Make sure the default DSA_METHOD implementation only uses its
2154 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2155 and change its own handlers to be NULL so as to remove unnecessary
2156 indirection. This lets alternative implementations fallback to the
2157 default implementation more easily.
2160 *) Support for directoryName in GeneralName related extensions
2164 *) Make it possible to link applications using Makefile.shared.
2165 Make that possible even when linking against static libraries!
2168 *) Support for single pass processing for S/MIME signing. This now
2169 means that S/MIME signing can be done from a pipe, in addition
2170 cleartext signing (multipart/signed type) is effectively streaming
2171 and the signed data does not need to be all held in memory.
2173 This is done with a new flag PKCS7_STREAM. When this flag is set
2174 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2175 is done after the data is output (and digests calculated) in
2176 SMIME_write_PKCS7().
2179 *) Add full support for -rpath/-R, both in shared libraries and
2180 applications, at least on the platforms where it's known how
2184 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2185 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2186 will now compute a table of multiples of the generator that
2187 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2188 faster (notably in the case of a single point multiplication,
2189 scalar * generator).
2190 [Nils Larsch, Bodo Moeller]
2192 *) IPv6 support for certificate extensions. The various extensions
2193 which use the IP:a.b.c.d can now take IPv6 addresses using the
2194 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2198 *) Added an ENGINE that implements RSA by performing private key
2199 exponentiations with the GMP library. The conversions to and from
2200 GMP's mpz_t format aren't optimised nor are any montgomery forms
2201 cached, and on x86 it appears OpenSSL's own performance has caught up.
2202 However there are likely to be other architectures where GMP could
2203 provide a boost. This ENGINE is not built in by default, but it can be
2204 specified at Configure time and should be accompanied by the necessary
2205 linker additions, eg;
2206 ./config -DOPENSSL_USE_GMP -lgmp
2209 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2210 testing availability of engines with "-t" - the old behaviour is
2211 produced by increasing the feature's verbosity with "-tt".
2214 *) ECDSA routines: under certain error conditions uninitialized BN objects
2215 could be freed. Solution: make sure initialization is performed early
2216 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2220 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2221 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2222 software implementations. For DSA and DH, parameter generation can
2223 also be overriden by providing the appropriate method callbacks.
2226 *) Change the "progress" mechanism used in key-generation and
2227 primality testing to functions that take a new BN_GENCB pointer in
2228 place of callback/argument pairs. The new API functions have "_ex"
2229 postfixes and the older functions are reimplemented as wrappers for
2230 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2231 declarations of the old functions to help (graceful) attempts to
2232 migrate to the new functions. Also, the new key-generation API
2233 functions operate on a caller-supplied key-structure and return
2234 success/failure rather than returning a key or NULL - this is to
2235 help make "keygen" another member function of RSA_METHOD etc.
2237 Example for using the new callback interface:
2239 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2243 BN_GENCB_set(&my_cb, my_callback, my_arg);
2245 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2246 /* For the meaning of a, b in calls to my_callback(), see the
2247 * documentation of the function that calls the callback.
2248 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2249 * my_callback should return 1 if it wants BN_is_prime_ex()
2250 * to continue, or 0 to stop.
2255 *) Change the ZLIB compression method to be stateful, and make it
2256 available to TLS with the number defined in
2257 draft-ietf-tls-compression-04.txt.
2260 *) Add the ASN.1 structures and functions for CertificatePair, which
2261 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2263 CertificatePair ::= SEQUENCE {
2264 forward [0] Certificate OPTIONAL,
2265 reverse [1] Certificate OPTIONAL,
2266 -- at least one of the pair shall be present -- }
2268 Also implement the PEM functions to read and write certificate
2269 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2271 This needed to be defined, mostly for the sake of the LDAP
2272 attribute crossCertificatePair, but may prove useful elsewhere as
2276 *) Make it possible to inhibit symlinking of shared libraries in
2277 Makefile.shared, for Cygwin's sake.
2280 *) Extend the BIGNUM API by creating a function
2281 void BN_set_negative(BIGNUM *a, int neg);
2282 and a macro that behave like
2283 int BN_is_negative(const BIGNUM *a);
2285 to avoid the need to access 'a->neg' directly in applications.
2288 *) Implement fast modular reduction for pseudo-Mersenne primes
2289 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2290 EC_GROUP_new_curve_GFp() will now automatically use this
2292 [Nils Larsch <nla@trustcenter.de>]
2294 *) Add new lock type (CRYPTO_LOCK_BN).
2297 *) Change the ENGINE framework to automatically load engines
2298 dynamically from specific directories unless they could be
2299 found to already be built in or loaded. Move all the
2300 current engines except for the cryptodev one to a new
2302 The engines in engines/ are built as shared libraries if
2303 the "shared" options was given to ./Configure or ./config.
2304 Otherwise, they are inserted in libcrypto.a.
2305 /usr/local/ssl/engines is the default directory for dynamic
2306 engines, but that can be overriden at configure time through
2307 the usual use of --prefix and/or --openssldir, and at run
2308 time with the environment variable OPENSSL_ENGINES.
2309 [Geoff Thorpe and Richard Levitte]
2311 *) Add Makefile.shared, a helper makefile to build shared
2312 libraries. Addapt Makefile.org.
2315 *) Add version info to Win32 DLLs.
2316 [Peter 'Luna' Runestig" <peter@runestig.com>]
2318 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2319 can be added using this API to created arbitrary PKCS#12
2320 files while avoiding the low level API.
2322 New options to PKCS12_create(), key or cert can be NULL and
2323 will then be omitted from the output file. The encryption
2324 algorithm NIDs can be set to -1 for no encryption, the mac
2325 iteration count can be set to 0 to omit the mac.
2327 Enhance pkcs12 utility by making the -nokeys and -nocerts
2328 options work when creating a PKCS#12 file. New option -nomac
2329 to omit the mac, NONE can be set for an encryption algorithm.
2330 New code is modified to use the enhanced PKCS12_create()
2331 instead of the low level API.
2334 *) Extend ASN1 encoder to support indefinite length constructed
2335 encoding. This can output sequences tags and octet strings in
2336 this form. Modify pk7_asn1.c to support indefinite length
2337 encoding. This is experimental and needs additional code to
2338 be useful, such as an ASN1 bio and some enhanced streaming
2341 Extend template encode functionality so that tagging is passed
2342 down to the template encoder.
2345 *) Let 'openssl req' fail if an argument to '-newkey' is not
2346 recognized instead of using RSA as a default.
2349 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2350 As these are not official, they are not included in "ALL";
2351 the "ECCdraft" ciphersuite group alias can be used to select them.
2352 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2354 *) Add ECDH engine support.
2355 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2357 *) Add ECDH in new directory crypto/ecdh/.
2358 [Douglas Stebila (Sun Microsystems Laboratories)]
2360 *) Let BN_rand_range() abort with an error after 100 iterations
2361 without success (which indicates a broken PRNG).
2364 *) Change BN_mod_sqrt() so that it verifies that the input value
2365 is really the square of the return value. (Previously,
2366 BN_mod_sqrt would show GIGO behaviour.)
2369 *) Add named elliptic curves over binary fields from X9.62, SECG,
2370 and WAP/WTLS; add OIDs that were still missing.
2372 [Sheueling Chang Shantz and Douglas Stebila
2373 (Sun Microsystems Laboratories)]
2375 *) Extend the EC library for elliptic curves over binary fields
2376 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2379 EC_GF2m_simple_method
2383 EC_GROUP_new_curve_GF2m
2384 EC_GROUP_set_curve_GF2m
2385 EC_GROUP_get_curve_GF2m
2386 EC_POINT_set_affine_coordinates_GF2m
2387 EC_POINT_get_affine_coordinates_GF2m
2388 EC_POINT_set_compressed_coordinates_GF2m
2390 Point compression for binary fields is disabled by default for
2391 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2394 As binary polynomials are represented as BIGNUMs, various members
2395 of the EC_GROUP and EC_POINT data structures can be shared
2396 between the implementations for prime fields and binary fields;
2397 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2398 are essentially identical to their ..._GFp counterparts.
2399 (For simplicity, the '..._GFp' prefix has been dropped from
2400 various internal method names.)
2402 An internal 'field_div' method (similar to 'field_mul' and
2403 'field_sqr') has been added; this is used only for binary fields.
2405 [Sheueling Chang Shantz and Douglas Stebila
2406 (Sun Microsystems Laboratories)]
2408 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2409 through methods ('mul', 'precompute_mult').
2411 The generic implementations (now internally called 'ec_wNAF_mul'
2412 and 'ec_wNAF_precomputed_mult') remain the default if these
2413 methods are undefined.
2415 [Sheueling Chang Shantz and Douglas Stebila
2416 (Sun Microsystems Laboratories)]
2418 *) New function EC_GROUP_get_degree, which is defined through
2419 EC_METHOD. For curves over prime fields, this returns the bit
2420 length of the modulus.
2422 [Sheueling Chang Shantz and Douglas Stebila
2423 (Sun Microsystems Laboratories)]
2425 *) New functions EC_GROUP_dup, EC_POINT_dup.
2426 (These simply call ..._new and ..._copy).
2428 [Sheueling Chang Shantz and Douglas Stebila
2429 (Sun Microsystems Laboratories)]
2431 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2432 Polynomials are represented as BIGNUMs (where the sign bit is not
2433 used) in the following functions [macros]:
2436 BN_GF2m_sub [= BN_GF2m_add]
2437 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2438 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2439 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2441 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2442 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2443 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2444 BN_GF2m_cmp [= BN_ucmp]
2446 (Note that only the 'mod' functions are actually for fields GF(2^m).
2447 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2449 For some functions, an the irreducible polynomial defining a
2450 field can be given as an 'unsigned int[]' with strictly
2451 decreasing elements giving the indices of those bits that are set;
2452 i.e., p[] represents the polynomial
2453 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2455 p[0] > p[1] > ... > p[k] = 0.
2456 This applies to the following functions:
2461 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2462 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2464 BN_GF2m_mod_sqrt_arr
2465 BN_GF2m_mod_solve_quad_arr
2469 Conversion can be performed by the following functions:
2474 bntest.c has additional tests for binary polynomial arithmetic.
2476 Two implementations for BN_GF2m_mod_div() are available.
2477 The default algorithm simply uses BN_GF2m_mod_inv() and
2478 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2479 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2480 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2482 [Sheueling Chang Shantz and Douglas Stebila
2483 (Sun Microsystems Laboratories)]
2485 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2486 functionality is disabled at compile-time.
2487 [Douglas Stebila <douglas.stebila@sun.com>]
2489 *) Change default behaviour of 'openssl asn1parse' so that more
2490 information is visible when viewing, e.g., a certificate:
2492 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2493 mode the content of non-printable OCTET STRINGs is output in a
2494 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2495 avoid the appearance of a printable string.
2496 [Nils Larsch <nla@trustcenter.de>]
2498 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2500 EC_GROUP_set_asn1_flag()
2501 EC_GROUP_get_asn1_flag()
2502 EC_GROUP_set_point_conversion_form()
2503 EC_GROUP_get_point_conversion_form()
2504 These control ASN1 encoding details:
2505 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2506 has been set to OPENSSL_EC_NAMED_CURVE.
2507 - Points are encoded in uncompressed form by default; options for
2508 asn1_for are as for point2oct, namely
2509 POINT_CONVERSION_COMPRESSED
2510 POINT_CONVERSION_UNCOMPRESSED
2511 POINT_CONVERSION_HYBRID
2513 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2516 EC_GROUP_get0_seed()
2517 EC_GROUP_get_seed_len()
2518 This is used only for ASN1 purposes (so far).
2519 [Nils Larsch <nla@trustcenter.de>]
2521 *) Add 'field_type' member to EC_METHOD, which holds the NID
2522 of the appropriate field type OID. The new function
2523 EC_METHOD_get_field_type() returns this value.
2524 [Nils Larsch <nla@trustcenter.de>]
2529 EC_POINT_point2hex()
2530 EC_POINT_hex2point()
2531 providing useful interfaces to EC_POINT_point2oct() and
2532 EC_POINT_oct2point().
2533 [Nils Larsch <nla@trustcenter.de>]
2535 *) Change internals of the EC library so that the functions
2536 EC_GROUP_set_generator()
2537 EC_GROUP_get_generator()
2538 EC_GROUP_get_order()
2539 EC_GROUP_get_cofactor()
2540 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2541 to methods, which would lead to unnecessary code duplication when
2542 adding different types of curves.
2543 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2545 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2546 arithmetic, and such that modified wNAFs are generated
2547 (which avoid length expansion in many cases).
2550 *) Add a function EC_GROUP_check_discriminant() (defined via
2551 EC_METHOD) that verifies that the curve discriminant is non-zero.
2553 Add a function EC_GROUP_check() that makes some sanity tests
2554 on a EC_GROUP, its generator and order. This includes
2555 EC_GROUP_check_discriminant().
2556 [Nils Larsch <nla@trustcenter.de>]
2558 *) Add ECDSA in new directory crypto/ecdsa/.
2560 Add applications 'openssl ecparam' and 'openssl ecdsa'
2561 (these are based on 'openssl dsaparam' and 'openssl dsa').
2563 ECDSA support is also included in various other files across the
2564 library. Most notably,
2565 - 'openssl req' now has a '-newkey ecdsa:file' option;
2566 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2567 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2568 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2569 them suitable for ECDSA where domain parameters must be
2570 extracted before the specific public key;
2571 - ECDSA engine support has been added.
2572 [Nils Larsch <nla@trustcenter.de>]
2574 *) Include some named elliptic curves, and add OIDs from X9.62,
2575 SECG, and WAP/WTLS. Each curve can be obtained from the new
2577 EC_GROUP_new_by_curve_name(),
2578 and the list of available named curves can be obtained with
2579 EC_get_builtin_curves().
2580 Also add a 'curve_name' member to EC_GROUP objects, which can be
2582 EC_GROUP_set_curve_name()
2583 EC_GROUP_get_curve_name()
2584 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2586 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2587 was actually never needed) and in BN_mul(). The removal in BN_mul()
2588 required a small change in bn_mul_part_recursive() and the addition
2589 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2590 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2591 bn_sub_words() and bn_add_words() except they take arrays with
2595 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2597 *) Cleanse PEM buffers before freeing them since they may contain
2599 [Benjamin Bennett <ben@psc.edu>]
2601 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2602 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2603 authentication-only ciphersuites.
2606 *) Since AES128 and AES256 share a single mask bit in the logic of
2607 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2608 kludge to work properly if AES128 is available and AES256 isn't.
2611 *) Expand security boundary to match 1.1.1 module.
2614 *) Remove redundant features: hash file source, editing of test vectors
2615 modify fipsld to use external fips_premain.c signature.
2618 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2619 run algorithm test programs.
2622 *) Make algorithm test programs more tolerant of whitespace.
2625 *) Have SSL/TLS server implementation tolerate "mismatched" record
2626 protocol version while receiving ClientHello even if the
2627 ClientHello is fragmented. (The server can't insist on the
2628 particular protocol version it has chosen before the ServerHello
2629 message has informed the client about his choice.)
2632 *) Load error codes if they are not already present instead of using a
2633 static variable. This allows them to be cleanly unloaded and reloaded.
2636 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2638 *) Introduce limits to prevent malicious keys being able to
2639 cause a denial of service. (CVE-2006-2940)
2640 [Steve Henson, Bodo Moeller]
2642 *) Fix ASN.1 parsing of certain invalid structures that can result
2643 in a denial of service. (CVE-2006-2937) [Steve Henson]
2645 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2646 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2648 *) Fix SSL client code which could crash if connecting to a
2649 malicious SSLv2 server. (CVE-2006-4343)
2650 [Tavis Ormandy and Will Drewry, Google Security Team]
2652 *) Change ciphersuite string processing so that an explicit
2653 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2654 will no longer include "AES128-SHA"), and any other similar
2655 ciphersuite (same bitmap) from *other* protocol versions (so that
2656 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2657 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2658 changes from 0.9.8b and 0.9.8d.
2661 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2663 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2664 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2666 *) Change the Unix randomness entropy gathering to use poll() when
2667 possible instead of select(), since the latter has some
2668 undesirable limitations.
2669 [Darryl Miles via Richard Levitte and Bodo Moeller]
2671 *) Disable rogue ciphersuites:
2673 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2674 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2675 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2677 The latter two were purportedly from
2678 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2681 Also deactive the remaining ciphersuites from
2682 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2683 unofficial, and the ID has long expired.
2686 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2687 dual-core machines) and other potential thread-safety issues.
2690 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2692 *) Adapt fipsld and the build system to link against the validated FIPS
2693 module in FIPS mode.
2696 *) Fixes for VC++ 2005 build under Windows.
2699 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2700 from a Windows bash shell such as MSYS. It is autodetected from the
2701 "config" script when run from a VC++ environment. Modify standard VC++
2702 build to use fipscanister.o from the GNU make build.
2705 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2707 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2708 The value now differs depending on if you build for FIPS or not.
2709 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2710 safely run with a non-FIPSed libcrypto, as it may crash because of
2711 the difference induced by this change.
2714 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2716 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2717 (part of SSL_OP_ALL). This option used to disable the
2718 countermeasure against man-in-the-middle protocol-version
2719 rollback in the SSL 2.0 server implementation, which is a bad
2720 idea. (CVE-2005-2969)
2722 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2723 for Information Security, National Institute of Advanced Industrial
2724 Science and Technology [AIST], Japan)]
2726 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2727 mainly for FIPS compliance and not fully integrated at this stage.
2730 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2731 the exponentiation using a fixed-length exponent. (Otherwise,
2732 the information leaked through timing could expose the secret key
2733 after many signatures; cf. Bleichenbacher's attack on DSA with
2737 *) Make a new fixed-window mod_exp implementation the default for
2738 RSA, DSA, and DH private-key operations so that the sequence of
2739 squares and multiplies and the memory access pattern are
2740 independent of the particular secret key. This will mitigate
2741 cache-timing and potential related attacks.
2743 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2744 and this is automatically used by BN_mod_exp_mont() if the new flag
2745 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2746 will use this BN flag for private exponents unless the flag
2747 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2748 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2750 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2752 *) Change the client implementation for SSLv23_method() and
2753 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2754 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2755 (Previously, the SSL 2.0 backwards compatible Client Hello
2756 message format would be used even with SSL_OP_NO_SSLv2.)
2759 *) Add support for smime-type MIME parameter in S/MIME messages which some
2763 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2764 a threadsafe manner. Modify rsa code to use new function and add calls
2765 to dsa and dh code (which had race conditions before).
2768 *) Include the fixed error library code in the C error file definitions
2769 instead of fixing them up at runtime. This keeps the error code
2770 structures constant.
2773 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2775 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2778 *) Fixes for newer kerberos headers. NB: the casts are needed because
2779 the 'length' field is signed on one version and unsigned on another
2780 with no (?) obvious way to tell the difference, without these VC++
2781 complains. Also the "definition" of FAR (blank) is no longer included
2782 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2783 some needed definitions.
2786 *) Undo Cygwin change.
2789 *) Added support for proxy certificates according to RFC 3820.
2790 Because they may be a security thread to unaware applications,
2791 they must be explicitely allowed in run-time. See
2792 docs/HOWTO/proxy_certificates.txt for further information.
2795 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2797 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2798 server and client random values. Previously
2799 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2800 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2802 This change has negligible security impact because:
2804 1. Server and client random values still have 24 bytes of pseudo random
2807 2. Server and client random values are sent in the clear in the initial
2810 3. The master secret is derived using the premaster secret (48 bytes in
2811 size for static RSA ciphersuites) as well as client server and random
2814 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2817 [Stephen Henson, reported by UK NISCC]
2819 *) Use Windows randomness collection on Cygwin.
2822 *) Fix hang in EGD/PRNGD query when communication socket is closed
2823 prematurely by EGD/PRNGD.
2824 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2826 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2829 *) Back-port of selected performance improvements from development
2830 branch, as well as improved support for PowerPC platforms.
2833 *) Add lots of checks for memory allocation failure, error codes to indicate
2834 failure and freeing up memory if a failure occurs.
2835 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2837 *) Add new -passin argument to dgst.
2840 *) Perform some character comparisons of different types in X509_NAME_cmp:
2841 this is needed for some certificates that reencode DNs into UTF8Strings
2842 (in violation of RFC3280) and can't or wont issue name rollover
2846 *) Make an explicit check during certificate validation to see that
2847 the CA setting in each certificate on the chain is correct. As a
2848 side effect always do the following basic checks on extensions,
2849 not just when there's an associated purpose to the check:
2851 - if there is an unhandled critical extension (unless the user
2852 has chosen to ignore this fault)
2853 - if the path length has been exceeded (if one is set at all)
2854 - that certain extensions fit the associated purpose (if one has
2858 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2860 *) Avoid a race condition when CRLs are checked in a multi threaded
2861 environment. This would happen due to the reordering of the revoked
2862 entries during signature checking and serial number lookup. Now the
2863 encoding is cached and the serial number sort performed under a lock.
2864 Add new STACK function sk_is_sorted().
2867 *) Add Delta CRL to the extension code.
2870 *) Various fixes to s3_pkt.c so alerts are sent properly.
2871 [David Holmes <d.holmes@f5.com>]
2873 *) Reduce the chances of duplicate issuer name and serial numbers (in
2874 violation of RFC3280) using the OpenSSL certificate creation utilities.
2875 This is done by creating a random 64 bit value for the initial serial
2876 number when a serial number file is created or when a self signed
2877 certificate is created using 'openssl req -x509'. The initial serial
2878 number file is created using 'openssl x509 -next_serial' in CA.pl
2879 rather than being initialized to 1.
2882 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2884 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2885 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2886 [Joe Orton, Steve Henson]
2888 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2890 [Joe Orton, Steve Henson]
2892 *) Make it possible to have multiple active certificates with the same
2893 subject in the CA index file. This is done only if the keyword
2894 'unique_subject' is set to 'no' in the main CA section (default
2895 if 'CA_default') of the configuration file. The value is saved
2896 with the database itself in a separate index attribute file,
2897 named like the index file with '.attr' appended to the name.
2900 *) X509 verify fixes. Disable broken certificate workarounds when
2901 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2902 keyUsage extension present. Don't accept CRLs with unhandled critical
2903 extensions: since verify currently doesn't process CRL extensions this
2904 rejects a CRL with *any* critical extensions. Add new verify error codes
2908 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2909 A clarification of RFC2560 will require the use of OCTET STRINGs and
2910 some implementations cannot handle the current raw format. Since OpenSSL
2911 copies and compares OCSP nonces as opaque blobs without any attempt at
2912 parsing them this should not create any compatibility issues.
2915 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2916 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2917 this HMAC (and other) operations are several times slower than OpenSSL
2921 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2922 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2924 *) Use the correct content when signing type "other".
2927 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2929 *) Fix various bugs revealed by running the NISCC test suite:
2931 Stop out of bounds reads in the ASN1 code when presented with
2932 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2934 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2936 If verify callback ignores invalid public key errors don't try to check
2937 certificate signature with the NULL public key.
2941 *) New -ignore_err option in ocsp application to stop the server
2942 exiting on the first error in a request.
2945 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2946 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2950 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2951 extra data after the compression methods not only for TLS 1.0
2952 but also for SSL 3.0 (as required by the specification).
2953 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2955 *) Change X509_certificate_type() to mark the key as exported/exportable
2956 when it's 512 *bits* long, not 512 bytes.
2959 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2960 blocks during encryption.
2963 *) Various fixes to base64 BIO and non blocking I/O. On write
2964 flushes were not handled properly if the BIO retried. On read
2965 data was not being buffered properly and had various logic bugs.
2966 This also affects blocking I/O when the data being decoded is a
2970 *) Various S/MIME bugfixes and compatibility changes:
2971 output correct application/pkcs7 MIME type if
2972 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2973 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2974 of files as .eml work). Correctly handle very long lines in MIME
2978 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2980 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2981 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2982 a protocol version number mismatch like a decryption error
2983 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2986 *) Turn on RSA blinding by default in the default implementation
2987 to avoid a timing attack. Applications that don't want it can call
2988 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2989 They would be ill-advised to do so in most cases.
2990 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2992 *) Change RSA blinding code so that it works when the PRNG is not
2993 seeded (in this case, the secret RSA exponent is abused as
2994 an unpredictable seed -- if it is not unpredictable, there
2995 is no point in blinding anyway). Make RSA blinding thread-safe
2996 by remembering the creator's thread ID in rsa->blinding and
2997 having all other threads use local one-time blinding factors
2998 (this requires more computation than sharing rsa->blinding, but
2999 avoids excessive locking; and if an RSA object is not shared
3000 between threads, blinding will still be very fast).
3003 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3004 ENGINE as defaults for all supported algorithms irrespective of
3005 the 'flags' parameter. 'flags' is now honoured, so applications
3006 should make sure they are passing it correctly.
3009 *) Target "mingw" now allows native Windows code to be generated in
3010 the Cygwin environment as well as with the MinGW compiler.
3013 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3015 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3016 via timing by performing a MAC computation even if incorrrect
3017 block cipher padding has been found. This is a countermeasure
3018 against active attacks where the attacker has to distinguish
3019 between bad padding and a MAC verification error. (CVE-2003-0078)
3021 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3022 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3023 Martin Vuagnoux (EPFL, Ilion)]
3025 *) Make the no-err option work as intended. The intention with no-err
3026 is not to have the whole error stack handling routines removed from
3027 libcrypto, it's only intended to remove all the function name and
3028 reason texts, thereby removing some of the footprint that may not
3029 be interesting if those errors aren't displayed anyway.
3031 NOTE: it's still possible for any application or module to have it's
3032 own set of error texts inserted. The routines are there, just not
3033 used by default when no-err is given.
3036 *) Add support for FreeBSD on IA64.
3037 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3039 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3040 Kerberos function mit_des_cbc_cksum(). Before this change,
3041 the value returned by DES_cbc_cksum() was like the one from
3042 mit_des_cbc_cksum(), except the bytes were swapped.
3043 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3045 *) Allow an application to disable the automatic SSL chain building.
3046 Before this a rather primitive chain build was always performed in
3047 ssl3_output_cert_chain(): an application had no way to send the
3048 correct chain if the automatic operation produced an incorrect result.
3050 Now the chain builder is disabled if either:
3052 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3054 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3056 The reasoning behind this is that an application would not want the
3057 auto chain building to take place if extra chain certificates are
3058 present and it might also want a means of sending no additional
3059 certificates (for example the chain has two certificates and the
3063 *) Add the possibility to build without the ENGINE framework.
3064 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3066 *) Under Win32 gmtime() can return NULL: check return value in
3067 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3070 *) DSA routines: under certain error conditions uninitialized BN objects
3071 could be freed. Solution: make sure initialization is performed early
3072 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3073 Nils Larsch <nla@trustcenter.de> via PR#459)
3076 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3077 checked on reconnect on the client side, therefore session resumption
3078 could still fail with a "ssl session id is different" error. This
3079 behaviour is masked when SSL_OP_ALL is used due to
3080 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3081 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3082 followup to PR #377.
3085 *) IA-32 assembler support enhancements: unified ELF targets, support
3086 for SCO/Caldera platforms, fix for Cygwin shared build.
3089 *) Add support for FreeBSD on sparc64. As a consequence, support for
3090 FreeBSD on non-x86 processors is separate from x86 processors on
3091 the config script, much like the NetBSD support.
3092 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3094 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3096 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3099 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3100 code (06) was taken as the first octet of the session ID and the last
3101 octet was ignored consequently. As a result SSLv2 client side session
3102 caching could not have worked due to the session ID mismatch between
3104 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3108 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3109 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3113 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3114 seems that in spite of existing for more than a year, many application
3115 author have done nothing to provide the necessary callbacks, which
3116 means that this particular engine will not work properly anywhere.
3117 This is a very unfortunate situation which forces us, in the name
3118 of usability, to give the hw_ncipher.c a static lock, which is part
3120 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3121 appear in 0.9.8 or later. We EXPECT application authors to have
3122 dealt properly with this when 0.9.8 is released (unless we actually
3123 make such changes in the libcrypto locking code that changes will
3124 have to be made anyway).
3127 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3128 octets have been read, EOF or an error occurs. Without this change
3129 some truncated ASN1 structures will not produce an error.
3132 *) Disable Heimdal support, since it hasn't been fully implemented.
3133 Still give the possibility to force the use of Heimdal, but with
3134 warnings and a request that patches get sent to openssl-dev.
3137 *) Add the VC-CE target, introduce the WINCE sysname, and add
3138 INSTALL.WCE and appropriate conditionals to make it build.
3139 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3141 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3142 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3143 edit numbers of the version.
3144 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3146 *) Introduce safe string copy and catenation functions
3147 (BUF_strlcpy() and BUF_strlcat()).
3148 [Ben Laurie (CHATS) and Richard Levitte]
3150 *) Avoid using fixed-size buffers for one-line DNs.
3151 [Ben Laurie (CHATS)]
3153 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3154 resizing buffers containing secrets, and use where appropriate.
3155 [Ben Laurie (CHATS)]
3157 *) Avoid using fixed size buffers for configuration file location.
3158 [Ben Laurie (CHATS)]
3160 *) Avoid filename truncation for various CA files.
3161 [Ben Laurie (CHATS)]
3163 *) Use sizeof in preference to magic numbers.
3164 [Ben Laurie (CHATS)]
3166 *) Avoid filename truncation in cert requests.
3167 [Ben Laurie (CHATS)]
3169 *) Add assertions to check for (supposedly impossible) buffer
3171 [Ben Laurie (CHATS)]
3173 *) Don't cache truncated DNS entries in the local cache (this could
3174 potentially lead to a spoofing attack).
3175 [Ben Laurie (CHATS)]
3177 *) Fix various buffers to be large enough for hex/decimal
3178 representations in a platform independent manner.
3179 [Ben Laurie (CHATS)]
3181 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3182 resizing buffers containing secrets, and use where appropriate.
3183 [Ben Laurie (CHATS)]
3185 *) Add BIO_indent() to avoid much slightly worrying code to do
3187 [Ben Laurie (CHATS)]
3189 *) Convert sprintf()/BIO_puts() to BIO_printf().
3190 [Ben Laurie (CHATS)]
3192 *) buffer_gets() could terminate with the buffer only half
3194 [Ben Laurie (CHATS)]
3196 *) Add assertions to prevent user-supplied crypto functions from
3197 overflowing internal buffers by having large block sizes, etc.
3198 [Ben Laurie (CHATS)]
3200 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3202 [Ben Laurie (CHATS)]
3204 *) Eliminate unused copy of key in RC4.
3205 [Ben Laurie (CHATS)]
3207 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3208 [Ben Laurie (CHATS)]
3210 *) Fix off-by-one error in EGD path.
3211 [Ben Laurie (CHATS)]
3213 *) If RANDFILE path is too long, ignore instead of truncating.
3214 [Ben Laurie (CHATS)]
3216 *) Eliminate unused and incorrectly sized X.509 structure
3218 [Ben Laurie (CHATS)]
3220 *) Eliminate unused and dangerous function knumber().
3221 [Ben Laurie (CHATS)]
3223 *) Eliminate unused and dangerous structure, KSSL_ERR.
3224 [Ben Laurie (CHATS)]
3226 *) Protect against overlong session ID context length in an encoded
3227 session object. Since these are local, this does not appear to be
3229 [Ben Laurie (CHATS)]
3231 *) Change from security patch (see 0.9.6e below) that did not affect
3232 the 0.9.6 release series:
3234 Remote buffer overflow in SSL3 protocol - an attacker could
3235 supply an oversized master key in Kerberos-enabled versions.
3237 [Ben Laurie (CHATS)]
3239 *) Change the SSL kerb5 codes to match RFC 2712.
3242 *) Make -nameopt work fully for req and add -reqopt switch.
3243 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3245 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3246 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3248 *) Make sure tests can be performed even if the corresponding algorithms
3249 have been removed entirely. This was also the last step to make
3250 OpenSSL compilable with DJGPP under all reasonable conditions.
3251 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3253 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3254 to allow version independent disabling of normally unselected ciphers,
3255 which may be activated as a side-effect of selecting a single cipher.
3257 (E.g., cipher list string "RSA" enables ciphersuites that are left
3258 out of "ALL" because they do not provide symmetric encryption.
3259 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3260 [Lutz Jaenicke, Bodo Moeller]
3262 *) Add appropriate support for separate platform-dependent build
3263 directories. The recommended way to make a platform-dependent
3264 build directory is the following (tested on Linux), maybe with
3267 # Place yourself outside of the OpenSSL source tree. In
3268 # this example, the environment variable OPENSSL_SOURCE
3269 # is assumed to contain the absolute OpenSSL source directory.
3270 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3271 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3272 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3273 mkdir -p `dirname $F`
3274 ln -s $OPENSSL_SOURCE/$F $F
3277 To be absolutely sure not to disturb the source tree, a "make clean"
3278 is a good thing. If it isn't successfull, don't worry about it,
3279 it probably means the source directory is very clean.
3282 *) Make sure any ENGINE control commands make local copies of string
3283 pointers passed to them whenever necessary. Otherwise it is possible
3284 the caller may have overwritten (or deallocated) the original string
3285 data when a later ENGINE operation tries to use the stored values.
3286 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3288 *) Improve diagnostics in file reading and command-line digests.
3289 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3291 *) Add AES modes CFB and OFB to the object database. Correct an
3292 error in AES-CFB decryption.
3295 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3296 allows existing EVP_CIPHER_CTX structures to be reused after
3297 calling EVP_*Final(). This behaviour is used by encryption
3298 BIOs and some applications. This has the side effect that
3299 applications must explicitly clean up cipher contexts with
3300 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3303 *) Check the values of dna and dnb in bn_mul_recursive before calling
3304 bn_mul_comba (a non zero value means the a or b arrays do not contain
3305 n2 elements) and fallback to bn_mul_normal if either is not zero.
3308 *) Fix escaping of non-ASCII characters when using the -subj option
3309 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3312 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3313 form for "surname", serialNumber has no short form.
3314 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3315 therefore remove "mail" short name for "internet 7".
3316 The OID for unique identifiers in X509 certificates is
3317 x500UniqueIdentifier, not uniqueIdentifier.
3318 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3321 *) Add an "init" command to the ENGINE config module and auto initialize
3322 ENGINEs. Without any "init" command the ENGINE will be initialized
3323 after all ctrl commands have been executed on it. If init=1 the
3324 ENGINE is initailized at that point (ctrls before that point are run
3325 on the uninitialized ENGINE and after on the initialized one). If
3326 init=0 then the ENGINE will not be iniatialized at all.
3329 *) Fix the 'app_verify_callback' interface so that the user-defined
3330 argument is actually passed to the callback: In the
3331 SSL_CTX_set_cert_verify_callback() prototype, the callback
3332 declaration has been changed from
3335 int (*cb)(X509_STORE_CTX *,void *);
3336 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3337 i=s->ctx->app_verify_callback(&ctx)
3338 has been changed into
3339 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3341 To update applications using SSL_CTX_set_cert_verify_callback(),
3342 a dummy argument can be added to their callback functions.
3343 [D. K. Smetters <smetters@parc.xerox.com>]
3345 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3346 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3348 *) Add and OPENSSL_LOAD_CONF define which will cause
3349 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3350 This allows older applications to transparently support certain
3351 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3352 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3353 load the config file and OPENSSL_add_all_algorithms_conf() which will
3354 always load it have also been added.
3357 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3358 Adjust NIDs and EVP layer.
3359 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3361 *) Config modules support in openssl utility.
3363 Most commands now load modules from the config file,
3364 though in a few (such as version) this isn't done
3365 because it couldn't be used for anything.
3367 In the case of ca and req the config file used is
3368 the same as the utility itself: that is the -config
3369 command line option can be used to specify an
3373 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3374 use "openssl_conf" if filename is NULL use default openssl config file.
3377 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3378 config section name. Add a new flag to tolerate a missing config file
3379 and move code to CONF_modules_load_file().
3382 *) Support for crypto accelerator cards from Accelerated Encryption
3383 Processing, www.aep.ie. (Use engine 'aep')
3384 The support was copied from 0.9.6c [engine] and adapted/corrected
3385 to work with the new engine framework.
3386 [AEP Inc. and Richard Levitte]
3388 *) Support for SureWare crypto accelerator cards from Baltimore
3389 Technologies. (Use engine 'sureware')
3390 The support was copied from 0.9.6c [engine] and adapted
3391 to work with the new engine framework.
3394 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3395 make the newer ENGINE framework commands for the CHIL engine work.
3396 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3398 *) Make it possible to produce shared libraries on ReliantUNIX.
3399 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3401 *) Add the configuration target debug-linux-ppro.
3402 Make 'openssl rsa' use the general key loading routines
3403 implemented in apps.c, and make those routines able to
3404 handle the key format FORMAT_NETSCAPE and the variant
3406 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3408 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3409 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3411 *) Add -keyform to rsautl, and document -engine.
3412 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3414 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3415 BIO_R_NO_SUCH_FILE error code rather than the generic
3416 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3419 *) Add new functions
3421 ERR_peek_last_error_line
3422 ERR_peek_last_error_line_data.
3423 These are similar to
3426 ERR_peek_error_line_data,
3427 but report on the latest error recorded rather than the first one
3428 still in the error queue.
3429 [Ben Laurie, Bodo Moeller]
3431 *) default_algorithms option in ENGINE config module. This allows things
3433 default_algorithms = ALL
3434 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3437 *) Prelminary ENGINE config module.
3440 *) New experimental application configuration code.
3443 *) Change the AES code to follow the same name structure as all other
3444 symmetric ciphers, and behave the same way. Move everything to
3445 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3446 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3448 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3449 [Ben Laurie and Theo de Raadt]
3451 *) Add option to output public keys in req command.
3452 [Massimiliano Pala madwolf@openca.org]
3454 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3455 (up to about 10% better than before for P-192 and P-224).
3458 *) New functions/macros
3460 SSL_CTX_set_msg_callback(ctx, cb)
3461 SSL_CTX_set_msg_callback_arg(ctx, arg)
3462 SSL_set_msg_callback(ssl, cb)
3463 SSL_set_msg_callback_arg(ssl, arg)
3465 to request calling a callback function
3467 void cb(int write_p, int version, int content_type,
3468 const void *buf, size_t len, SSL *ssl, void *arg)
3470 whenever a protocol message has been completely received
3471 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3472 protocol version according to which the SSL library interprets
3473 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3474 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3475 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3476 specification (change_cipher_spec(20), alert(21), handshake(22)).
3477 'buf' and 'len' point to the actual message, 'ssl' to the
3478 SSL object, and 'arg' is the application-defined value set by
3479 SSL[_CTX]_set_msg_callback_arg().
3481 'openssl s_client' and 'openssl s_server' have new '-msg' options
3482 to enable a callback that displays all protocol messages.
3485 *) Change the shared library support so shared libraries are built as
3486 soon as the corresponding static library is finished, and thereby get
3487 openssl and the test programs linked against the shared library.
3488 This still only happens when the keyword "shard" has been given to
3489 the configuration scripts.
3491 NOTE: shared library support is still an experimental thing, and
3492 backward binary compatibility is still not guaranteed.
3493 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3495 *) Add support for Subject Information Access extension.
3496 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3498 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3499 additional bytes when new memory had to be allocated, not just
3500 when reusing an existing buffer.
3503 *) New command line and configuration option 'utf8' for the req command.
3504 This allows field values to be specified as UTF8 strings.
3507 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3508 runs for the former and machine-readable output for the latter.
3511 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3512 of the e-mail address in the DN (i.e., it will go into a certificate
3513 extension only). The new configuration file option 'email_in_dn = no'
3514 has the same effect.
3515 [Massimiliano Pala madwolf@openca.org]
3517 *) Change all functions with names starting with des_ to be starting
3518 with DES_ instead. Add wrappers that are compatible with libdes,
3519 but are named _ossl_old_des_*. Finally, add macros that map the
3520 des_* symbols to the corresponding _ossl_old_des_* if libdes
3521 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3522 desired, the des_* symbols will be mapped to DES_*, with one
3525 Since we provide two compatibility mappings, the user needs to
3526 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3527 compatibility is desired. The default (i.e., when that macro
3528 isn't defined) is OpenSSL 0.9.6c compatibility.
3530 There are also macros that enable and disable the support of old
3531 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3532 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3533 are defined, the default will apply: to support the old des routines.
3535 In either case, one must include openssl/des.h to get the correct
3536 definitions. Do not try to just include openssl/des_old.h, that
3539 NOTE: This is a major break of an old API into a new one. Software
3540 authors are encouraged to switch to the DES_ style functions. Some
3541 time in the future, des_old.h and the libdes compatibility functions
3542 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3543 default), and then completely removed.
3546 *) Test for certificates which contain unsupported critical extensions.
3547 If such a certificate is found during a verify operation it is
3548 rejected by default: this behaviour can be overridden by either
3549 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3550 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3551 X509_supported_extension() has also been added which returns 1 if a
3552 particular extension is supported.
3555 *) Modify the behaviour of EVP cipher functions in similar way to digests
3556 to retain compatibility with existing code.
3559 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3560 compatibility with existing code. In particular the 'ctx' parameter does
3561 not have to be to be initialized before the call to EVP_DigestInit() and
3562 it is tidied up after a call to EVP_DigestFinal(). New function
3563 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3564 EVP_MD_CTX_copy() changed to not require the destination to be
3565 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3566 requires the destination to be valid.
3568 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3569 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3572 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3573 so that complete 'Handshake' protocol structures are kept in memory
3574 instead of overwriting 'msg_type' and 'length' with 'body' data.
3577 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3578 [Massimo Santin via Richard Levitte]
3580 *) Major restructuring to the underlying ENGINE code. This includes
3581 reduction of linker bloat, separation of pure "ENGINE" manipulation
3582 (initialisation, etc) from functionality dealing with implementations
3583 of specific crypto iterfaces. This change also introduces integrated
3584 support for symmetric ciphers and digest implementations - so ENGINEs
3585 can now accelerate these by providing EVP_CIPHER and EVP_MD
3586 implementations of their own. This is detailed in crypto/engine/README
3587 as it couldn't be adequately described here. However, there are a few
3588 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3589 were changed in the original introduction of ENGINE code have now
3590 reverted back - the hooking from this code to ENGINE is now a good
3591 deal more passive and at run-time, operations deal directly with
3592 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3593 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3594 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3595 they were not being used by the framework as there is no concept of a
3596 BIGNUM_METHOD and they could not be generalised to the new
3597 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3598 ENGINE_cpy() has been removed as it cannot be consistently defined in
3602 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3605 *) Change mkdef.pl to sort symbols that get the same entry number,
3606 and make sure the automatically generated functions ERR_load_*
3607 become part of libeay.num as well.
3610 *) New function SSL_renegotiate_pending(). This returns true once
3611 renegotiation has been requested (either SSL_renegotiate() call
3612 or HelloRequest/ClientHello receveived from the peer) and becomes
3613 false once a handshake has been completed.
3614 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3615 sends a HelloRequest, but does not ensure that a handshake takes
3616 place. SSL_renegotiate_pending() is useful for checking if the
3617 client has followed the request.)
3620 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3621 By default, clients may request session resumption even during
3622 renegotiation (if session ID contexts permit); with this option,
3623 session resumption is possible only in the first handshake.
3625 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3626 more bits available for options that should not be part of
3627 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3630 *) Add some demos for certificate and certificate request creation.
3633 *) Make maximum certificate chain size accepted from the peer application
3634 settable (SSL*_get/set_max_cert_list()), as proposed by
3635 "Douglas E. Engert" <deengert@anl.gov>.
3638 *) Add support for shared libraries for Unixware-7
3639 (Boyd Lynn Gerber <gerberb@zenez.com>).
3642 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3643 be done prior to destruction. Use this to unload error strings from
3644 ENGINEs that load their own error strings. NB: This adds two new API
3645 functions to "get" and "set" this destroy handler in an ENGINE.
3648 *) Alter all existing ENGINE implementations (except "openssl" and
3649 "openbsd") to dynamically instantiate their own error strings. This
3650 makes them more flexible to be built both as statically-linked ENGINEs
3651 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3652 Also, add stub code to each that makes building them as self-contained
3653 shared-libraries easier (see README.ENGINE).
3656 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3657 implementations into applications that are completely implemented in
3658 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3659 commands that can be used to configure what shared-library to load and
3660 to control aspects of the way it is handled. Also, made an update to
3661 the README.ENGINE file that brings its information up-to-date and
3662 provides some information and instructions on the "dynamic" ENGINE
3663 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3666 *) Make it possible to unload ranges of ERR strings with a new
3667 "ERR_unload_strings" function.
3670 *) Add a copy() function to EVP_MD.
3673 *) Make EVP_MD routines take a context pointer instead of just the
3674 md_data void pointer.
3677 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3678 that the digest can only process a single chunk of data
3679 (typically because it is provided by a piece of
3680 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3681 is only going to provide a single chunk of data, and hence the
3682 framework needn't accumulate the data for oneshot drivers.
3685 *) As with "ERR", make it possible to replace the underlying "ex_data"
3686 functions. This change also alters the storage and management of global
3687 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3688 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3689 index counters. The API functions that use this state have been changed
3690 to take a "class_index" rather than pointers to the class's local STACK
3691 and counter, and there is now an API function to dynamically create new
3692 classes. This centralisation allows us to (a) plug a lot of the
3693 thread-safety problems that existed, and (b) makes it possible to clean
3694 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3695 such data would previously have always leaked in application code and
3696 workarounds were in place to make the memory debugging turn a blind eye
3697 to it. Application code that doesn't use this new function will still
3698 leak as before, but their memory debugging output will announce it now
3699 rather than letting it slide.
3701 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3702 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3703 has a return value to indicate success or failure.
3706 *) Make it possible to replace the underlying "ERR" functions such that the
3707 global state (2 LHASH tables and 2 locks) is only used by the "default"
3708 implementation. This change also adds two functions to "get" and "set"
3709 the implementation prior to it being automatically set the first time
3710 any other ERR function takes place. Ie. an application can call "get",
3711 pass the return value to a module it has just loaded, and that module
3712 can call its own "set" function using that value. This means the
3713 module's "ERR" operations will use (and modify) the error state in the
3714 application and not in its own statically linked copy of OpenSSL code.
3717 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3718 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3719 the operation, and provides a more encapsulated way for external code
3720 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3721 to use these functions rather than manually incrementing the counts.
3723 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3726 *) Add EVP test program.
3729 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3732 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3733 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3734 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3735 These allow a CRL to be built without having to access X509_CRL fields
3736 directly. Modify 'ca' application to use new functions.
3739 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3740 bug workarounds. Rollback attack detection is a security feature.
3741 The problem will only arise on OpenSSL servers when TLSv1 is not
3742 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3743 Software authors not wanting to support TLSv1 will have special reasons
3744 for their choice and can explicitly enable this option.
3745 [Bodo Moeller, Lutz Jaenicke]
3747 *) Rationalise EVP so it can be extended: don't include a union of
3748 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3749 (similar to those existing for EVP_CIPHER_CTX).
3754 EVP_MD_CTX_init(&md); /* new function call */
3755 EVP_DigestInit(&md, EVP_sha1());
3756 EVP_DigestUpdate(&md, in, len);
3757 EVP_DigestFinal(&md, out, NULL);
3758 EVP_MD_CTX_cleanup(&md); /* new function call */
3762 *) Make DES key schedule conform to the usual scheme, as well as
3763 correcting its structure. This means that calls to DES functions
3764 now have to pass a pointer to a des_key_schedule instead of a
3765 plain des_key_schedule (which was actually always a pointer
3768 des_key_schedule ks;
3770 des_set_key_checked(..., &ks);
3771 des_ncbc_encrypt(..., &ks, ...);
3773 (Note that a later change renames 'des_...' into 'DES_...'.)
3776 *) Initial reduction of linker bloat: the use of some functions, such as
3777 PEM causes large amounts of unused functions to be linked in due to
3778 poor organisation. For example pem_all.c contains every PEM function
3779 which has a knock on effect of linking in large amounts of (unused)
3780 ASN1 code. Grouping together similar functions and splitting unrelated
3781 functions prevents this.
3784 *) Cleanup of EVP macros.
3787 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3788 correct _ecb suffix.
3791 *) Add initial OCSP responder support to ocsp application. The
3792 revocation information is handled using the text based index
3793 use by the ca application. The responder can either handle
3794 requests generated internally, supplied in files (for example
3795 via a CGI script) or using an internal minimal server.
3798 *) Add configuration choices to get zlib compression for TLS.
3801 *) Changes to Kerberos SSL for RFC 2712 compliance:
3802 1. Implemented real KerberosWrapper, instead of just using
3803 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3804 2. Implemented optional authenticator field of KerberosWrapper.
3806 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3807 and authenticator structs; see crypto/krb5/.
3809 Generalized Kerberos calls to support multiple Kerberos libraries.
3810 [Vern Staats <staatsvr@asc.hpc.mil>,
3811 Jeffrey Altman <jaltman@columbia.edu>
3812 via Richard Levitte]
3814 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3815 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3816 values for each of the key sizes rather than having just
3817 parameters (and 'speed' generating keys each time).
3820 *) Speed up EVP routines.
3823 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3824 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3825 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3826 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3828 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3829 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3830 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3833 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3835 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3838 *) Added the OS2-EMX target.
3839 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3841 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3842 to support NCONF routines in extension code. New function CONF_set_nconf()
3843 to allow functions which take an NCONF to also handle the old LHASH
3844 structure: this means that the old CONF compatible routines can be
3845 retained (in particular wrt extensions) without having to duplicate the
3846 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3849 *) Enhance the general user interface with mechanisms for inner control
3850 and with possibilities to have yes/no kind of prompts.
3853 *) Change all calls to low level digest routines in the library and
3854 applications to use EVP. Add missing calls to HMAC_cleanup() and
3855 don't assume HMAC_CTX can be copied using memcpy().
3856 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3858 *) Add the possibility to control engines through control names but with
3859 arbitrary arguments instead of just a string.
3860 Change the key loaders to take a UI_METHOD instead of a callback
3861 function pointer. NOTE: this breaks binary compatibility with earlier
3862 versions of OpenSSL [engine].
3863 Adapt the nCipher code for these new conditions and add a card insertion
3867 *) Enhance the general user interface with mechanisms to better support
3868 dialog box interfaces, application-defined prompts, the possibility
3869 to use defaults (for example default passwords from somewhere else)
3870 and interrupts/cancellations.
3873 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3874 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3877 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3878 tidy up some unnecessarily weird code in 'sk_new()').
3879 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3881 *) Change the key loading routines for ENGINEs to use the same kind
3882 callback (pem_password_cb) as all other routines that need this
3886 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3887 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3888 than this minimum value is recommended.
3891 *) New random seeder for OpenVMS, using the system process statistics
3892 that are easily reachable.
3895 *) Windows apparently can't transparently handle global
3896 variables defined in DLLs. Initialisations such as:
3898 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3900 wont compile. This is used by the any applications that need to
3901 declare their own ASN1 modules. This was fixed by adding the option
3902 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3903 needed for static libraries under Win32.
3906 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3907 setting of purpose and trust fields. New X509_STORE trust and
3908 purpose functions and tidy up setting in other SSL functions.
3911 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3912 structure. These are inherited by X509_STORE_CTX when it is
3913 initialised. This allows various defaults to be set in the
3914 X509_STORE structure (such as flags for CRL checking and custom
3915 purpose or trust settings) for functions which only use X509_STORE_CTX
3916 internally such as S/MIME.
3918 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3919 trust settings if they are not set in X509_STORE. This allows X509_STORE
3920 purposes and trust (in S/MIME for example) to override any set by default.
3922 Add command line options for CRL checking to smime, s_client and s_server
3926 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3927 are set then the CRL is looked up in the X509_STORE structure and
3928 its validity and signature checked, then if the certificate is found
3929 in the CRL the verify fails with a revoked error.
3931 Various new CRL related callbacks added to X509_STORE_CTX structure.
3933 Command line options added to 'verify' application to support this.
3935 This needs some additional work, such as being able to handle multiple
3936 CRLs with different times, extension based lookup (rather than just
3937 by subject name) and ultimately more complete V2 CRL extension
3941 *) Add a general user interface API (crypto/ui/). This is designed
3942 to replace things like des_read_password and friends (backward
3943 compatibility functions using this new API are provided).
3944 The purpose is to remove prompting functions from the DES code
3945 section as well as provide for prompting through dialog boxes in
3946 a window system and the like.
3949 *) Add "ex_data" support to ENGINE so implementations can add state at a
3950 per-structure level rather than having to store it globally.
3953 *) Make it possible for ENGINE structures to be copied when retrieved by
3954 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3955 This causes the "original" ENGINE structure to act like a template,
3956 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3957 operational state can be localised to each ENGINE structure, despite the
3958 fact they all share the same "methods". New ENGINE structures returned in
3959 this case have no functional references and the return value is the single
3960 structural reference. This matches the single structural reference returned
3961 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3965 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3966 needs to match any other type at all we need to manually clear the
3970 *) Changes to the "openssl engine" utility to include;
3971 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3972 about an ENGINE's available control commands.
3973 - executing control commands from command line arguments using the
3974 '-pre' and '-post' switches. '-post' is only used if '-t' is
3975 specified and the ENGINE is successfully initialised. The syntax for
3976 the individual commands are colon-separated, for example;
3977 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3980 *) New dynamic control command support for ENGINEs. ENGINEs can now
3981 declare their own commands (numbers), names (strings), descriptions,
3982 and input types for run-time discovery by calling applications. A
3983 subset of these commands are implicitly classed as "executable"
3984 depending on their input type, and only these can be invoked through
3985 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3986 can be based on user input, config files, etc). The distinction is
3987 that "executable" commands cannot return anything other than a boolean
3988 result and can only support numeric or string input, whereas some
3989 discoverable commands may only be for direct use through
3990 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3991 pointers, or other custom uses. The "executable" commands are to
3992 support parameterisations of ENGINE behaviour that can be
3993 unambiguously defined by ENGINEs and used consistently across any
3994 OpenSSL-based application. Commands have been added to all the
3995 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3996 control over shared-library paths without source code alterations.
3999 *) Changed all ENGINE implementations to dynamically allocate their
4000 ENGINEs rather than declaring them statically. Apart from this being
4001 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4002 this also allows the implementations to compile without using the
4003 internal engine_int.h header.
4006 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4007 'const' value. Any code that should be able to modify a RAND_METHOD
4008 should already have non-const pointers to it (ie. they should only
4009 modify their own ones).
4012 *) Made a variety of little tweaks to the ENGINE code.
4013 - "atalla" and "ubsec" string definitions were moved from header files
4014 to C code. "nuron" string definitions were placed in variables
4015 rather than hard-coded - allowing parameterisation of these values
4016 later on via ctrl() commands.
4017 - Removed unused "#if 0"'d code.
4018 - Fixed engine list iteration code so it uses ENGINE_free() to release
4019 structural references.
4020 - Constified the RAND_METHOD element of ENGINE structures.
4021 - Constified various get/set functions as appropriate and added
4022 missing functions (including a catch-all ENGINE_cpy that duplicates
4023 all ENGINE values onto a new ENGINE except reference counts/state).
4024 - Removed NULL parameter checks in get/set functions. Setting a method
4025 or function to NULL is a way of cancelling out a previously set
4026 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4027 and doesn't justify the extra error symbols and code.
4028 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4029 flags from engine_int.h to engine.h.
4030 - Changed prototypes for ENGINE handler functions (init(), finish(),
4031 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4034 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4035 to the algorithm using long division. The binary algorithm can be
4036 used only if the modulus is odd. On 32-bit systems, it is faster
4037 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4038 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4039 up to 450 bits. In 64-bit environments, the binary algorithm
4040 appears to be advantageous for much longer moduli; here we use it
4041 for moduli up to 2048 bits.
4044 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4045 could not support the combine flag in choice fields.
4048 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4049 extensions from a certificate request to the certificate.
4052 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4053 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4054 file: this allows the display of the certificate about to be
4055 signed to be customised, to allow certain fields to be included
4056 or excluded and extension details. The old system didn't display
4057 multicharacter strings properly, omitted fields not in the policy
4058 and couldn't display additional details such as extensions.
4061 *) Function EC_POINTs_mul for multiple scalar multiplication
4062 of an arbitrary number of elliptic curve points
4063 \sum scalars[i]*points[i],
4064 optionally including the generator defined for the EC_GROUP:
4065 scalar*generator + \sum scalars[i]*points[i].
4067 EC_POINT_mul is a simple wrapper function for the typical case
4068 that the point list has just one item (besides the optional
4072 *) First EC_METHODs for curves over GF(p):
4074 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4075 operations and provides various method functions that can also
4076 operate with faster implementations of modular arithmetic.
4078 EC_GFp_mont_method() reuses most functions that are part of
4079 EC_GFp_simple_method, but uses Montgomery arithmetic.
4081 [Bodo Moeller; point addition and point doubling
4082 implementation directly derived from source code provided by
4083 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4085 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4086 crypto/ec/ec_lib.c):
4088 Curves are EC_GROUP objects (with an optional group generator)
4089 based on EC_METHODs that are built into the library.
4091 Points are EC_POINT objects based on EC_GROUP objects.
4093 Most of the framework would be able to handle curves over arbitrary
4094 finite fields, but as there are no obvious types for fields other
4095 than GF(p), some functions are limited to that for now.
4098 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4099 that the file contains a complete HTTP response.
4102 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4103 change the def and num file printf format specifier from "%-40sXXX"
4104 to "%-39s XXX". The latter will always guarantee a space after the
4105 field while the former will cause them to run together if the field
4106 is 40 of more characters long.
4109 *) Constify the cipher and digest 'method' functions and structures
4110 and modify related functions to take constant EVP_MD and EVP_CIPHER
4114 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4115 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4118 *) Modify EVP_Digest*() routines so they now return values. Although the
4119 internal software routines can never fail additional hardware versions
4123 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4125 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4126 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4129 ERR_R_NESTED_ASN1_ERROR
4131 ERR_R_MISSING_ASN1_EOS
4132 were 4 .. 9, conflicting with
4133 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4135 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4136 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4138 Add new error code 'ERR_R_INTERNAL_ERROR'.
4141 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4145 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4146 sets the subject name for a new request or supersedes the
4147 subject name in a given request. Formats that can be parsed are
4148 'CN=Some Name, OU=myOU, C=IT'
4150 'CN=Some Name/OU=myOU/C=IT'.
4152 Add options '-batch' and '-verbose' to 'openssl req'.
4153 [Massimiliano Pala <madwolf@hackmasters.net>]
4155 *) Introduce the possibility to access global variables through
4156 functions on platform were that's the best way to handle exporting
4157 global variables in shared libraries. To enable this functionality,
4158 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4159 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4160 is normally done by Configure or something similar).
4162 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4163 in the source file (foo.c) like this:
4165 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4166 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4168 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4169 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4171 OPENSSL_DECLARE_GLOBAL(int,foo);
4172 #define foo OPENSSL_GLOBAL_REF(foo)
4173 OPENSSL_DECLARE_GLOBAL(double,bar);
4174 #define bar OPENSSL_GLOBAL_REF(bar)
4176 The #defines are very important, and therefore so is including the
4177 header file everywhere where the defined globals are used.
4179 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4180 of ASN.1 items, but that structure is a bit different.
4182 The largest change is in util/mkdef.pl which has been enhanced with
4183 better and easier to understand logic to choose which symbols should
4184 go into the Windows .def files as well as a number of fixes and code
4185 cleanup (among others, algorithm keywords are now sorted
4186 lexicographically to avoid constant rewrites).
4189 *) In BN_div() keep a copy of the sign of 'num' before writing the
4190 result to 'rm' because if rm==num the value will be overwritten
4191 and produce the wrong result if 'num' is negative: this caused
4192 problems with BN_mod() and BN_nnmod().
4195 *) Function OCSP_request_verify(). This checks the signature on an
4196 OCSP request and verifies the signer certificate. The signer
4197 certificate is just checked for a generic purpose and OCSP request
4201 *) Add OCSP_check_validity() function to check the validity of OCSP
4202 responses. OCSP responses are prepared in real time and may only
4203 be a few seconds old. Simply checking that the current time lies
4204 between thisUpdate and nextUpdate max reject otherwise valid responses
4205 caused by either OCSP responder or client clock inaccuracy. Instead
4206 we allow thisUpdate and nextUpdate to fall within a certain period of
4207 the current time. The age of the response can also optionally be
4208 checked. Two new options -validity_period and -status_age added to
4212 *) If signature or public key algorithm is unrecognized print out its
4213 OID rather that just UNKNOWN.
4216 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4217 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4218 ID to be generated from the issuer certificate alone which can then be
4219 passed to OCSP_id_issuer_cmp().
4222 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4223 ASN1 modules to export functions returning ASN1_ITEM pointers
4224 instead of the ASN1_ITEM structures themselves. This adds several
4225 new macros which allow the underlying ASN1 function/structure to
4226 be accessed transparently. As a result code should not use ASN1_ITEM
4227 references directly (such as &X509_it) but instead use the relevant
4228 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4229 use of the new ASN1 code on platforms where exporting structures
4230 is problematical (for example in shared libraries) but exporting
4231 functions returning pointers to structures is not.
4234 *) Add support for overriding the generation of SSL/TLS session IDs.
4235 These callbacks can be registered either in an SSL_CTX or per SSL.
4236 The purpose of this is to allow applications to control, if they wish,
4237 the arbitrary values chosen for use as session IDs, particularly as it
4238 can be useful for session caching in multiple-server environments. A
4239 command-line switch for testing this (and any client code that wishes
4240 to use such a feature) has been added to "s_server".
4241 [Geoff Thorpe, Lutz Jaenicke]
4243 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4244 of the form '#if defined(...) || defined(...) || ...' and
4245 '#if !defined(...) && !defined(...) && ...'. This also avoids
4246 the growing number of special cases it was previously handling.
4249 *) Make all configuration macros available for application by making
4250 sure they are available in opensslconf.h, by giving them names starting
4251 with "OPENSSL_" to avoid conflicts with other packages and by making
4252 sure e_os2.h will cover all platform-specific cases together with
4254 Additionally, it is now possible to define configuration/platform-
4255 specific names (called "system identities"). In the C code, these
4256 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4257 macro with the name beginning with "OPENSSL_SYS_", which is determined
4258 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4262 *) New option -set_serial to 'req' and 'x509' this allows the serial
4263 number to use to be specified on the command line. Previously self
4264 signed certificates were hard coded with serial number 0 and the
4265 CA options of 'x509' had to use a serial number in a file which was
4269 *) New options to 'ca' utility to support V2 CRL entry extensions.
4270 Currently CRL reason, invalidity date and hold instruction are
4271 supported. Add new CRL extensions to V3 code and some new objects.
4274 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4275 disable standard block padding (aka PKCS#5 padding) in the EVP
4276 API, which was previously mandatory. This means that the data is
4277 not padded in any way and so the total length much be a multiple
4278 of the block size, otherwise an error occurs.
4281 *) Initial (incomplete) OCSP SSL support.
4284 *) New function OCSP_parse_url(). This splits up a URL into its host,
4285 port and path components: primarily to parse OCSP URLs. New -url
4286 option to ocsp utility.
4289 *) New nonce behavior. The return value of OCSP_check_nonce() now
4290 reflects the various checks performed. Applications can decide
4291 whether to tolerate certain situations such as an absent nonce
4292 in a response when one was present in a request: the ocsp application
4293 just prints out a warning. New function OCSP_add1_basic_nonce()
4294 this is to allow responders to include a nonce in a response even if
4295 the request is nonce-less.
4298 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4299 skipped when using openssl x509 multiple times on a single input file,
4300 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4303 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4304 set string type: to handle setting ASN1_TIME structures. Fix ca
4305 utility to correctly initialize revocation date of CRLs.
4308 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4309 the clients preferred ciphersuites and rather use its own preferences.
4310 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4311 Internet Explorer by ensuring unchanged hash method during stepup.
4312 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4315 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4316 to aes and add a new 'exist' option to print out symbols that don't
4320 *) Additional options to ocsp utility to allow flags to be set and
4321 additional certificates supplied.
4324 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4325 OCSP client a number of certificate to only verify the response
4329 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4330 handle the new API. Currently only ECB, CBC modes supported. Add new
4333 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4334 Encryption Standard (AES) Ciphersuites for Transport Layer
4335 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4336 not enabled by default and were not part of the "ALL" ciphersuite
4337 alias because they were not yet official; they could be
4338 explicitly requested by specifying the "AESdraft" ciphersuite
4339 group alias. In the final release of OpenSSL 0.9.7, the group
4340 alias is called "AES" and is part of "ALL".)
4341 [Ben Laurie, Steve Henson, Bodo Moeller]
4343 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4344 request to response.
4347 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4348 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4349 extract information from a certificate request. OCSP_response_create()
4350 creates a response and optionally adds a basic response structure.
4351 OCSP_basic_add1_status() adds a complete single response to a basic
4352 response and returns the OCSP_SINGLERESP structure just added (to allow
4353 extensions to be included for example). OCSP_basic_add1_cert() adds a
4354 certificate to a basic response and OCSP_basic_sign() signs a basic
4355 response with various flags. New helper functions ASN1_TIME_check()
4356 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4357 (converts ASN1_TIME to GeneralizedTime).
4360 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4361 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4362 structure from a certificate. X509_pubkey_digest() digests the public_key
4363 contents: this is used in various key identifiers.
4366 *) Make sk_sort() tolerate a NULL argument.
4367 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4369 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4370 passed by the function are trusted implicitly. If any of them signed the
4371 response then it is assumed to be valid and is not verified.
4374 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4375 to data. This was previously part of the PKCS7 ASN1 code. This
4376 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4377 [Steve Henson, reported by Kenneth R. Robinette
4378 <support@securenetterm.com>]
4380 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4381 routines: without these tracing memory leaks is very painful.
4382 Fix leaks in PKCS12 and PKCS7 routines.
4385 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4386 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4387 effectively meant GeneralizedTime would never be used. Now it
4388 is initialised to -1 but X509_time_adj() now has to check the value
4389 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4390 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4391 [Steve Henson, reported by Kenneth R. Robinette
4392 <support@securenetterm.com>]
4394 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4395 result in a zero length in the ASN1_INTEGER structure which was
4396 not consistent with the structure when d2i_ASN1_INTEGER() was used
4397 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4398 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4399 where it did not print out a minus for negative ASN1_INTEGER.
4402 *) Add summary printout to ocsp utility. The various functions which
4403 convert status values to strings have been renamed to:
4404 OCSP_response_status_str(), OCSP_cert_status_str() and
4405 OCSP_crl_reason_str() and are no longer static. New options
4406 to verify nonce values and to disable verification. OCSP response
4407 printout format cleaned up.
4410 *) Add additional OCSP certificate checks. These are those specified
4411 in RFC2560. This consists of two separate checks: the CA of the
4412 certificate being checked must either be the OCSP signer certificate
4413 or the issuer of the OCSP signer certificate. In the latter case the
4414 OCSP signer certificate must contain the OCSP signing extended key
4415 usage. This check is performed by attempting to match the OCSP
4416 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4417 in the OCSP_CERTID structures of the response.
4420 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4421 and related routines. This uses the standard OpenSSL certificate
4422 verify routines to perform initial checks (just CA validity) and
4423 to obtain the certificate chain. Then additional checks will be
4424 performed on the chain. Currently the root CA is checked to see
4425 if it is explicitly trusted for OCSP signing. This is used to set
4426 a root CA as a global signing root: that is any certificate that
4427 chains to that CA is an acceptable OCSP signing certificate.
4430 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4431 extensions from a separate configuration file.
4432 As when reading extensions from the main configuration file,
4433 the '-extensions ...' option may be used for specifying the
4435 [Massimiliano Pala <madwolf@comune.modena.it>]
4437 *) New OCSP utility. Allows OCSP requests to be generated or
4438 read. The request can be sent to a responder and the output
4439 parsed, outputed or printed in text form. Not complete yet:
4440 still needs to check the OCSP response validity.
4443 *) New subcommands for 'openssl ca':
4444 'openssl ca -status <serial>' prints the status of the cert with
4445 the given serial number (according to the index file).
4446 'openssl ca -updatedb' updates the expiry status of certificates
4448 [Massimiliano Pala <madwolf@comune.modena.it>]
4450 *) New '-newreq-nodes' command option to CA.pl. This is like
4451 '-newreq', but calls 'openssl req' with the '-nodes' option
4452 so that the resulting key is not encrypted.
4453 [Damien Miller <djm@mindrot.org>]
4455 *) New configuration for the GNU Hurd.
4456 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4458 *) Initial code to implement OCSP basic response verify. This
4459 is currently incomplete. Currently just finds the signer's
4460 certificate and verifies the signature on the response.
4463 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4464 value of OPENSSLDIR. This is available via the new '-d' option
4465 to 'openssl version', and is also included in 'openssl version -a'.
4468 *) Allowing defining memory allocation callbacks that will be given
4469 file name and line number information in additional arguments
4470 (a const char* and an int). The basic functionality remains, as
4471 well as the original possibility to just replace malloc(),
4472 realloc() and free() by functions that do not know about these
4473 additional arguments. To register and find out the current
4474 settings for extended allocation functions, the following
4475 functions are provided:
4477 CRYPTO_set_mem_ex_functions
4478 CRYPTO_set_locked_mem_ex_functions
4479 CRYPTO_get_mem_ex_functions
4480 CRYPTO_get_locked_mem_ex_functions
4482 These work the same way as CRYPTO_set_mem_functions and friends.
4483 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4484 extended allocation function is enabled.
4485 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4486 a conventional allocation function is enabled.
4487 [Richard Levitte, Bodo Moeller]
4489 *) Finish off removing the remaining LHASH function pointer casts.
4490 There should no longer be any prototype-casting required when using
4491 the LHASH abstraction, and any casts that remain are "bugs". See
4492 the callback types and macros at the head of lhash.h for details
4493 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4496 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4497 If /dev/[u]random devices are not available or do not return enough
4498 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4500 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4501 /etc/entropy will be queried once each in this sequence, quering stops
4502 when enough entropy was collected without querying more sockets.
4505 *) Change the Unix RAND_poll() variant to be able to poll several
4506 random devices, as specified by DEVRANDOM, until a sufficient amount
4507 of data has been collected. We spend at most 10 ms on each file
4508 (select timeout) and read in non-blocking mode. DEVRANDOM now
4509 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4510 (previously it was just the string "/dev/urandom"), so on typical
4511 platforms the 10 ms delay will never occur.
4512 Also separate out the Unix variant to its own file, rand_unix.c.
4513 For VMS, there's a currently-empty rand_vms.c.
4516 *) Move OCSP client related routines to ocsp_cl.c. These
4517 provide utility functions which an application needing
4518 to issue a request to an OCSP responder and analyse the
4519 response will typically need: as opposed to those which an
4520 OCSP responder itself would need which will be added later.
4522 OCSP_request_sign() signs an OCSP request with an API similar
4523 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4524 response. OCSP_response_get1_basic() extracts basic response
4525 from response. OCSP_resp_find_status(): finds and extracts status
4526 information from an OCSP_CERTID structure (which will be created
4527 when the request structure is built). These are built from lower
4528 level functions which work on OCSP_SINGLERESP structures but
4529 wont normally be used unless the application wishes to examine
4530 extensions in the OCSP response for example.
4532 Replace nonce routines with a pair of functions.
4533 OCSP_request_add1_nonce() adds a nonce value and optionally
4534 generates a random value. OCSP_check_nonce() checks the
4535 validity of the nonce in an OCSP response.
4538 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4539 This doesn't copy the supplied OCSP_CERTID and avoids the
4540 need to free up the newly created id. Change return type
4541 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4542 This can then be used to add extensions to the request.
4543 Deleted OCSP_request_new(), since most of its functionality
4544 is now in OCSP_REQUEST_new() (and the case insensitive name
4545 clash) apart from the ability to set the request name which
4546 will be added elsewhere.
4549 *) Update OCSP API. Remove obsolete extensions argument from
4550 various functions. Extensions are now handled using the new
4551 OCSP extension code. New simple OCSP HTTP function which
4552 can be used to send requests and parse the response.
4555 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4556 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4557 uses the special reorder version of SET OF to sort the attributes
4558 and reorder them to match the encoded order. This resolves a long
4559 standing problem: a verify on a PKCS7 structure just after signing
4560 it used to fail because the attribute order did not match the
4561 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4562 it uses the received order. This is necessary to tolerate some broken
4563 software that does not order SET OF. This is handled by encoding
4564 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4565 to produce the required SET OF.
4568 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4569 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4570 files to get correct declarations of the ASN.1 item variables.
4573 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4574 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4575 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4576 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4577 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4578 ASN1_ITEM and no wrapper functions.
4581 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4582 replace the old function pointer based I/O routines. Change most of
4583 the *_d2i_bio() and *_d2i_fp() functions to use these.
4586 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4587 lines, recognice more "algorithms" that can be deselected, and make
4588 it complain about algorithm deselection that isn't recognised.
4591 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4592 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4593 to use new functions. Add NO_ASN1_OLD which can be set to remove
4594 some old style ASN1 functions: this can be used to determine if old
4595 code will still work when these eventually go away.
4598 *) New extension functions for OCSP structures, these follow the
4599 same conventions as certificates and CRLs.
4602 *) New function X509V3_add1_i2d(). This automatically encodes and
4603 adds an extension. Its behaviour can be customised with various
4604 flags to append, replace or delete. Various wrappers added for
4605 certifcates and CRLs.
4608 *) Fix to avoid calling the underlying ASN1 print routine when
4609 an extension cannot be parsed. Correct a typo in the
4610 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4613 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4614 entries for variables.
4617 *) Add functionality to apps/openssl.c for detecting locking
4618 problems: As the program is single-threaded, all we have
4619 to do is register a locking callback using an array for
4620 storing which locks are currently held by the program.
4623 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4624 SSL_get_ex_data_X509_STORE_idx(), which is used in
4625 ssl_verify_cert_chain() and thus can be called at any time
4626 during TLS/SSL handshakes so that thread-safety is essential.
4627 Unfortunately, the ex_data design is not at all suited
4628 for multi-threaded use, so it probably should be abolished.
4631 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4632 [Broadcom, tweaked and integrated by Geoff Thorpe]
4634 *) Move common extension printing code to new function
4635 X509V3_print_extensions(). Reorganise OCSP print routines and
4636 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4639 *) New function X509_signature_print() to remove duplication in some
4643 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4644 set (this was treated exactly the same as SET OF previously). This
4645 is used to reorder the STACK representing the structure to match the
4646 encoding. This will be used to get round a problem where a PKCS7
4647 structure which was signed could not be verified because the STACK
4648 order did not reflect the encoded order.
4651 *) Reimplement the OCSP ASN1 module using the new code.
4654 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4655 for its ASN1 operations. The old style function pointers still exist
4656 for now but they will eventually go away.
4659 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4660 completely replaces the old ASN1 functionality with a table driven
4661 encoder and decoder which interprets an ASN1_ITEM structure describing
4662 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4663 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4664 has also been converted to the new form.
4667 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4668 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4669 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4670 for negative moduli.
4673 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4674 of not touching the result's sign bit.
4677 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4681 *) Changed the LHASH code to use prototypes for callbacks, and created
4682 macros to declare and implement thin (optionally static) functions
4683 that provide type-safety and avoid function pointer casting for the
4684 type-specific callbacks.
4687 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4689 [Veers Staats <staatsvr@asc.hpc.mil>,
4690 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4692 *) Reformat the FAQ so the different questions and answers can be divided
4693 in sections depending on the subject.
4696 *) Have the zlib compression code load ZLIB.DLL dynamically under
4700 *) New function BN_mod_sqrt for computing square roots modulo a prime
4701 (using the probabilistic Tonelli-Shanks algorithm unless
4702 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4703 be handled deterministically).
4704 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4706 *) Make BN_mod_inverse faster by explicitly handling small quotients
4707 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4708 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4711 *) New function BN_kronecker.
4714 *) Fix BN_gcd so that it works on negative inputs; the result is
4715 positive unless both parameters are zero.
4716 Previously something reasonably close to an infinite loop was
4717 possible because numbers could be growing instead of shrinking
4718 in the implementation of Euclid's algorithm.
4721 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4722 sign of the number in question.
4724 Fix BN_is_word(a,w) to work correctly for w == 0.
4726 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4727 because its test if the absolute value of 'a' equals 'w'.
4728 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4729 it exists mostly for use in the implementations of BN_is_zero(),
4730 BN_is_one(), and BN_is_word().
4733 *) New function BN_swap.
4736 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4737 the exponentiation functions are more likely to produce reasonable
4738 results on negative inputs.
4741 *) Change BN_mod_mul so that the result is always non-negative.
4742 Previously, it could be negative if one of the factors was negative;
4743 I don't think anyone really wanted that behaviour.
4746 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4747 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4748 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4749 and add new functions:
4758 BN_mod_lshift1_quick
4762 These functions always generate non-negative results.
4764 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4765 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4767 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4768 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4769 be reduced modulo m.
4770 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4773 The following entry accidentily appeared in the CHANGES file
4774 distributed with OpenSSL 0.9.7. The modifications described in
4775 it do *not* apply to OpenSSL 0.9.7.
4777 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4778 was actually never needed) and in BN_mul(). The removal in BN_mul()
4779 required a small change in bn_mul_part_recursive() and the addition
4780 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4781 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4782 bn_sub_words() and bn_add_words() except they take arrays with
4787 *) In 'openssl passwd', verify passwords read from the terminal
4788 unless the '-salt' option is used (which usually means that
4789 verification would just waste user's time since the resulting
4790 hash is going to be compared with some given password hash)
4791 or the new '-noverify' option is used.
4793 This is an incompatible change, but it does not affect
4794 non-interactive use of 'openssl passwd' (passwords on the command
4795 line, '-stdin' option, '-in ...' option) and thus should not
4799 *) Remove all references to RSAref, since there's no more need for it.
4802 *) Make DSO load along a path given through an environment variable
4803 (SHLIB_PATH) with shl_load().
4806 *) Constify the ENGINE code as a result of BIGNUM constification.
4807 Also constify the RSA code and most things related to it. In a
4808 few places, most notable in the depth of the ASN.1 code, ugly
4809 casts back to non-const were required (to be solved at a later
4813 *) Make it so the openssl application has all engines loaded by default.
4816 *) Constify the BIGNUM routines a little more.
4819 *) Add the following functions:
4821 ENGINE_load_cswift()
4823 ENGINE_load_atalla()
4825 ENGINE_load_builtin_engines()
4827 That way, an application can itself choose if external engines that
4828 are built-in in OpenSSL shall ever be used or not. The benefit is
4829 that applications won't have to be linked with libdl or other dso
4830 libraries unless it's really needed.
4832 Changed 'openssl engine' to load all engines on demand.
4833 Changed the engine header files to avoid the duplication of some
4834 declarations (they differed!).
4837 *) 'openssl engine' can now list capabilities.
4840 *) Better error reporting in 'openssl engine'.
4843 *) Never call load_dh_param(NULL) in s_server.
4846 *) Add engine application. It can currently list engines by name and
4847 identity, and test if they are actually available.
4850 *) Improve RPM specification file by forcing symbolic linking and making
4851 sure the installed documentation is also owned by root.root.
4852 [Damien Miller <djm@mindrot.org>]
4854 *) Give the OpenSSL applications more possibilities to make use of
4855 keys (public as well as private) handled by engines.
4858 *) Add OCSP code that comes from CertCo.
4861 *) Add VMS support for the Rijndael code.
4864 *) Added untested support for Nuron crypto accelerator.
4867 *) Add support for external cryptographic devices. This code was
4868 previously distributed separately as the "engine" branch.
4869 [Geoff Thorpe, Richard Levitte]
4871 *) Rework the filename-translation in the DSO code. It is now possible to
4872 have far greater control over how a "name" is turned into a filename
4873 depending on the operating environment and any oddities about the
4874 different shared library filenames on each system.
4877 *) Support threads on FreeBSD-elf in Configure.
4880 *) Fix for SHA1 assembly problem with MASM: it produces
4881 warnings about corrupt line number information when assembling
4882 with debugging information. This is caused by the overlapping
4884 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4887 NCONF_get_number() has no error checking at all. As a replacement,
4888 NCONF_get_number_e() is defined (_e for "error checking") and is
4889 promoted strongly. The old NCONF_get_number is kept around for
4890 binary backward compatibility.
4891 Make it possible for methods to load from something other than a BIO,
4892 by providing a function pointer that is given a name instead of a BIO.
4893 For example, this could be used to load configuration data from an
4897 *) Fix for non blocking accept BIOs. Added new I/O special reason
4898 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4899 with non blocking I/O was not possible because no retry code was
4900 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4904 *) Added the beginnings of Rijndael support.
4907 *) Fix for bug in DirectoryString mask setting. Add support for
4908 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4909 to allow certificate printing to more controllable, additional
4910 'certopt' option to 'x509' to allow new printing options to be
4914 *) Clean old EAY MD5 hack from e_os.h.
4917 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4919 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4920 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4921 [Joe Orton, Steve Henson]
4923 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4925 *) Fix additional bug revealed by the NISCC test suite:
4927 Stop bug triggering large recursion when presented with
4928 certain ASN.1 tags (CVE-2003-0851)
4931 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4933 *) Fix various bugs revealed by running the NISCC test suite:
4935 Stop out of bounds reads in the ASN1 code when presented with
4936 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4938 If verify callback ignores invalid public key errors don't try to check
4939 certificate signature with the NULL public key.
4943 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4944 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4948 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4949 extra data after the compression methods not only for TLS 1.0
4950 but also for SSL 3.0 (as required by the specification).
4951 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4953 *) Change X509_certificate_type() to mark the key as exported/exportable
4954 when it's 512 *bits* long, not 512 bytes.
4957 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4959 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4960 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4961 a protocol version number mismatch like a decryption error
4962 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4965 *) Turn on RSA blinding by default in the default implementation
4966 to avoid a timing attack. Applications that don't want it can call
4967 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4968 They would be ill-advised to do so in most cases.
4969 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4971 *) Change RSA blinding code so that it works when the PRNG is not
4972 seeded (in this case, the secret RSA exponent is abused as
4973 an unpredictable seed -- if it is not unpredictable, there
4974 is no point in blinding anyway). Make RSA blinding thread-safe
4975 by remembering the creator's thread ID in rsa->blinding and
4976 having all other threads use local one-time blinding factors
4977 (this requires more computation than sharing rsa->blinding, but
4978 avoids excessive locking; and if an RSA object is not shared
4979 between threads, blinding will still be very fast).
4982 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4984 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4985 via timing by performing a MAC computation even if incorrrect
4986 block cipher padding has been found. This is a countermeasure
4987 against active attacks where the attacker has to distinguish
4988 between bad padding and a MAC verification error. (CVE-2003-0078)
4990 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4991 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4992 Martin Vuagnoux (EPFL, Ilion)]
4994 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4996 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4997 memory from it's contents. This is done with a counter that will
4998 place alternating values in each byte. This can be used to solve
4999 two issues: 1) the removal of calls to memset() by highly optimizing
5000 compilers, and 2) cleansing with other values than 0, since those can
5001 be read through on certain media, for example a swap space on disk.
5004 *) Bugfix: client side session caching did not work with external caching,
5005 because the session->cipher setting was not restored when reloading
5006 from the external cache. This problem was masked, when
5007 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5008 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5011 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5012 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5013 [Zeev Lieber <zeev-l@yahoo.com>]
5015 *) Undo an undocumented change introduced in 0.9.6e which caused
5016 repeated calls to OpenSSL_add_all_ciphers() and
5017 OpenSSL_add_all_digests() to be ignored, even after calling
5021 *) Change the default configuration reader to deal with last line not
5022 being properly terminated.
5025 *) Change X509_NAME_cmp() so it applies the special rules on handling
5026 DN values that are of type PrintableString, as well as RDNs of type
5027 emailAddress where the value has the type ia5String.
5028 [stefank@valicert.com via Richard Levitte]
5030 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5031 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5032 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5033 the bitwise-OR of the two for use by the majority of applications
5034 wanting this behaviour, and update the docs. The documented
5035 behaviour and actual behaviour were inconsistent and had been
5036 changing anyway, so this is more a bug-fix than a behavioural
5038 [Geoff Thorpe, diagnosed by Nadav Har'El]
5040 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5041 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5044 *) Fix initialization code race conditions in
5045 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5046 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5047 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5048 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5049 ssl2_get_cipher_by_char(),
5050 ssl3_get_cipher_by_char().
5051 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5053 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5054 the cached sessions are flushed, as the remove_cb() might use ex_data
5055 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5056 (see [openssl.org #212]).
5057 [Geoff Thorpe, Lutz Jaenicke]
5059 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5060 length, instead of the encoding length to d2i_ASN1_OBJECT.
5063 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5065 *) [In 0.9.6g-engine release:]
5066 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5067 [Lynn Gazis <lgazis@rainbow.com>]
5069 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5071 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5072 and get fix the header length calculation.
5073 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5074 Alon Kantor <alonk@checkpoint.com> (and others),
5077 *) Use proper error handling instead of 'assertions' in buffer
5078 overflow checks added in 0.9.6e. This prevents DoS (the
5079 assertions could call abort()).
5080 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5082 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5084 *) Add various sanity checks to asn1_get_length() to reject
5085 the ASN1 length bytes if they exceed sizeof(long), will appear
5086 negative or the content length exceeds the length of the
5088 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5090 *) Fix cipher selection routines: ciphers without encryption had no flags
5091 for the cipher strength set and where therefore not handled correctly
5092 by the selection routines (PR #130).
5095 *) Fix EVP_dsa_sha macro.
5099 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5100 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5101 that was added in OpenSSL 0.9.6d.
5103 As the countermeasure turned out to be incompatible with some
5104 broken SSL implementations, the new option is part of SSL_OP_ALL.
5105 SSL_OP_ALL is usually employed when compatibility with weird SSL
5106 implementations is desired (e.g. '-bugs' option to 's_client' and
5107 's_server'), so the new option is automatically set in many
5111 *) Changes in security patch:
5113 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5114 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5115 Air Force Materiel Command, USAF, under agreement number
5118 *) Add various sanity checks to asn1_get_length() to reject
5119 the ASN1 length bytes if they exceed sizeof(long), will appear
5120 negative or the content length exceeds the length of the
5121 supplied buffer. (CVE-2002-0659)
5122 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5124 *) Assertions for various potential buffer overflows, not known to
5126 [Ben Laurie (CHATS)]
5128 *) Various temporary buffers to hold ASCII versions of integers were
5129 too small for 64 bit platforms. (CVE-2002-0655)
5130 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5132 *) Remote buffer overflow in SSL3 protocol - an attacker could
5133 supply an oversized session ID to a client. (CVE-2002-0656)
5134 [Ben Laurie (CHATS)]
5136 *) Remote buffer overflow in SSL2 protocol - an attacker could
5137 supply an oversized client master key. (CVE-2002-0656)
5138 [Ben Laurie (CHATS)]
5140 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5142 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5143 encoded as NULL) with id-dsa-with-sha1.
5144 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5146 *) Check various X509_...() return values in apps/req.c.
5147 [Nils Larsch <nla@trustcenter.de>]
5149 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5150 an end-of-file condition would erronously be flagged, when the CRLF
5151 was just at the end of a processed block. The bug was discovered when
5152 processing data through a buffering memory BIO handing the data to a
5153 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5154 <ptsekov@syntrex.com> and Nedelcho Stanev.
5157 *) Implement a countermeasure against a vulnerability recently found
5158 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5159 before application data chunks to avoid the use of known IVs
5160 with data potentially chosen by the attacker.
5163 *) Fix length checks in ssl3_get_client_hello().
5166 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5167 to prevent ssl3_read_internal() from incorrectly assuming that
5168 ssl3_read_bytes() found application data while handshake
5169 processing was enabled when in fact s->s3->in_read_app_data was
5170 merely automatically cleared during the initial handshake.
5171 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5173 *) Fix object definitions for Private and Enterprise: they were not
5174 recognized in their shortname (=lowercase) representation. Extend
5175 obj_dat.pl to issue an error when using undefined keywords instead
5176 of silently ignoring the problem (Svenning Sorensen
5177 <sss@sss.dnsalias.net>).
5180 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5181 generators, i.e. generators other than 2 and 5. (Previously, the
5182 code did not properly initialise the 'add' and 'rem' values to
5183 BN_generate_prime().)
5185 In the new general case, we do not insist that 'generator' is
5186 actually a primitive root: This requirement is rather pointless;
5187 a generator of the order-q subgroup is just as good, if not
5191 *) Map new X509 verification errors to alerts. Discovered and submitted by
5192 Tom Wu <tom@arcot.com>.
5195 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5196 returning non-zero before the data has been completely received
5197 when using non-blocking I/O.
5198 [Bodo Moeller; problem pointed out by John Hughes]
5200 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5201 [Ben Laurie, Lutz Jaenicke]
5203 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5204 Yoram Zahavi <YoramZ@gilian.com>).
5207 *) Add information about CygWin 1.3 and on, and preserve proper
5208 configuration for the versions before that.
5209 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5211 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5212 check whether we deal with a copy of a session and do not delete from
5213 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5214 <izhar@checkpoint.com>.
5217 *) Do not store session data into the internal session cache, if it
5218 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5219 flag is set). Proposed by Aslam <aslam@funk.com>.
5222 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5226 *) [In 0.9.6d-engine release:]
5227 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5228 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5230 *) Add the configuration target linux-s390x.
5231 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5233 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5234 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5235 variable as an indication that a ClientHello message has been
5236 received. As the flag value will be lost between multiple
5237 invocations of ssl3_accept when using non-blocking I/O, the
5238 function may not be aware that a handshake has actually taken
5239 place, thus preventing a new session from being added to the
5242 To avoid this problem, we now set s->new_session to 2 instead of
5243 using a local variable.
5244 [Lutz Jaenicke, Bodo Moeller]
5246 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5247 if the SSL_R_LENGTH_MISMATCH error is detected.
5248 [Geoff Thorpe, Bodo Moeller]
5250 *) New 'shared_ldflag' column in Configure platform table.
5253 *) Fix EVP_CIPHER_mode macro.
5254 ["Dan S. Camper" <dan@bti.net>]
5256 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5257 type, we must throw them away by setting rr->length to 0.
5258 [D P Chang <dpc@qualys.com>]
5260 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5262 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5263 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5264 worked incorrectly for those cases where range = 10..._2 and
5265 3*range is two bits longer than range.)
5268 *) Only add signing time to PKCS7 structures if it is not already
5272 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5273 OBJ_ld_ce should be OBJ_id_ce.
5274 Also some ip-pda OIDs in crypto/objects/objects.txt were
5275 incorrect (cf. RFC 3039).
5276 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5278 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5279 returns early because it has nothing to do.
5280 [Andy Schneider <andy.schneider@bjss.co.uk>]
5282 *) [In 0.9.6c-engine release:]
5283 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5284 [Andy Schneider <andy.schneider@bjss.co.uk>]
5286 *) [In 0.9.6c-engine release:]
5287 Add support for Cryptographic Appliance's keyserver technology.
5288 (Use engine 'keyclient')
5289 [Cryptographic Appliances and Geoff Thorpe]
5291 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5292 is called via tools/c89.sh because arguments have to be
5293 rearranged (all '-L' options must appear before the first object
5295 [Richard Shapiro <rshapiro@abinitio.com>]
5297 *) [In 0.9.6c-engine release:]
5298 Add support for Broadcom crypto accelerator cards, backported
5300 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5302 *) [In 0.9.6c-engine release:]
5303 Add support for SureWare crypto accelerator cards from
5304 Baltimore Technologies. (Use engine 'sureware')
5305 [Baltimore Technologies and Mark Cox]
5307 *) [In 0.9.6c-engine release:]
5308 Add support for crypto accelerator cards from Accelerated
5309 Encryption Processing, www.aep.ie. (Use engine 'aep')
5310 [AEP Inc. and Mark Cox]
5312 *) Add a configuration entry for gcc on UnixWare.
5313 [Gary Benson <gbenson@redhat.com>]
5315 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5316 messages are stored in a single piece (fixed-length part and
5317 variable-length part combined) and fix various bugs found on the way.
5320 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5321 instead. BIO_gethostbyname() does not know what timeouts are
5322 appropriate, so entries would stay in cache even when they have
5324 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5326 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5327 faced with a pathologically small ClientHello fragment that does
5328 not contain client_version: Instead of aborting with an error,
5329 simply choose the highest available protocol version (i.e.,
5330 TLS 1.0 unless it is disabled). In practice, ClientHello
5331 messages are never sent like this, but this change gives us
5332 strictly correct behaviour at least for TLS.
5335 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5336 never resets s->method to s->ctx->method when called from within
5337 one of the SSL handshake functions.
5338 [Bodo Moeller; problem pointed out by Niko Baric]
5340 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5341 (sent using the client's version number) if client_version is
5342 smaller than the protocol version in use. Also change
5343 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5344 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5345 the client will at least see that alert.
5348 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5352 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5353 client receives HelloRequest while in a handshake.
5354 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5356 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5357 should end in 'break', not 'goto end' which circuments various
5358 cleanups done in state SSL_ST_OK. But session related stuff
5359 must be disabled for SSL_ST_OK in the case that we just sent a
5362 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5363 before just sending a HelloRequest.
5364 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5366 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5367 reveal whether illegal block cipher padding was found or a MAC
5368 verification error occured. (Neither SSLerr() codes nor alerts
5369 are directly visible to potential attackers, but the information
5370 may leak via logfiles.)
5372 Similar changes are not required for the SSL 2.0 implementation
5373 because the number of padding bytes is sent in clear for SSL 2.0,
5374 and the extra bytes are just ignored. However ssl/s2_pkt.c
5375 failed to verify that the purported number of padding bytes is in
5379 *) Add OpenUNIX-8 support including shared libraries
5380 (Boyd Lynn Gerber <gerberb@zenez.com>).
5383 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5384 'wristwatch attack' using huge encoding parameters (cf.
5385 James H. Manger's CRYPTO 2001 paper). Note that the
5386 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5387 encoding parameters and hence was not vulnerable.
5390 *) BN_sqr() bug fix.
5391 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5393 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5394 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5395 followed by modular reduction.
5396 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5398 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5399 equivalent based on BN_pseudo_rand() instead of BN_rand().
5402 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5403 This function was broken, as the check for a new client hello message
5404 to handle SGC did not allow these large messages.
5405 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5408 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5411 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5412 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5415 *) Rework the configuration and shared library support for Tru64 Unix.
5416 The configuration part makes use of modern compiler features and
5417 still retains old compiler behavior for those that run older versions
5418 of the OS. The shared library support part includes a variant that
5419 uses the RPATH feature, and is available through the special
5420 configuration target "alpha-cc-rpath", which will never be selected
5422 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5424 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5425 with the same message size as in ssl3_get_certificate_request().
5426 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5427 messages might inadvertently be reject as too long.
5428 [Petr Lampa <lampa@fee.vutbr.cz>]
5430 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5433 *) Modified SSL library such that the verify_callback that has been set
5434 specificly for an SSL object with SSL_set_verify() is actually being
5435 used. Before the change, a verify_callback set with this function was
5436 ignored and the verify_callback() set in the SSL_CTX at the time of
5437 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5438 to allow the necessary settings.
5441 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5442 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5443 done automatically (in contradiction to the requirements of the C
5444 standard). This made problems when used from OpenSSH.
5447 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5448 dh->length and always used
5450 BN_rand_range(priv_key, dh->p).
5452 BN_rand_range() is not necessary for Diffie-Hellman, and this
5453 specific range makes Diffie-Hellman unnecessarily inefficient if
5454 dh->length (recommended exponent length) is much smaller than the
5455 length of dh->p. We could use BN_rand_range() if the order of
5456 the subgroup was stored in the DH structure, but we only have
5461 BN_rand(priv_key, l, ...)
5463 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5469 RSA_eay_public_encrypt
5470 RSA_eay_private_decrypt
5471 RSA_eay_private_encrypt (signing)
5472 RSA_eay_public_decrypt (signature verification)
5474 (default implementations for RSA_public_encrypt,
5475 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5476 always reject numbers >= n.
5479 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5480 to synchronize access to 'locking_thread'. This is necessary on
5481 systems where access to 'locking_thread' (an 'unsigned long'
5482 variable) is not atomic.
5485 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5486 *before* setting the 'crypto_lock_rand' flag. The previous code had
5487 a race condition if 0 is a valid thread ID.
5488 [Travis Vitek <vitek@roguewave.com>]
5490 *) Add support for shared libraries under Irix.
5491 [Albert Chin-A-Young <china@thewrittenword.com>]
5493 *) Add configuration option to build on Linux on both big-endian and
5495 [Ralf Baechle <ralf@uni-koblenz.de>]
5497 *) Add the possibility to create shared libraries on HP-UX.
5500 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5502 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5503 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5504 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5505 PRNG state recovery was possible based on the output of
5506 one PRNG request appropriately sized to gain knowledge on
5507 'md' followed by enough consecutive 1-byte PRNG requests
5508 to traverse all of 'state'.
5510 1. When updating 'md_local' (the current thread's copy of 'md')
5511 during PRNG output generation, hash all of the previous
5512 'md_local' value, not just the half used for PRNG output.
5514 2. Make the number of bytes from 'state' included into the hash
5515 independent from the number of PRNG bytes requested.
5517 The first measure alone would be sufficient to avoid
5518 Markku-Juhani's attack. (Actually it had never occurred
5519 to me that the half of 'md_local' used for chaining was the
5520 half from which PRNG output bytes were taken -- I had always
5521 assumed that the secret half would be used.) The second
5522 measure makes sure that additional data from 'state' is never
5523 mixed into 'md_local' in small portions; this heuristically
5524 further strengthens the PRNG.
5527 *) Fix crypto/bn/asm/mips3.s.
5530 *) When only the key is given to "enc", the IV is undefined. Print out
5531 an error message in this case.
5534 *) Handle special case when X509_NAME is empty in X509 printing routines.
5537 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5538 positive and less than q.
5541 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5542 used: it isn't thread safe and the add_lock_callback should handle
5544 [Paul Rose <Paul.Rose@bridge.com>]
5546 *) Verify that incoming data obeys the block size in
5547 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5551 [Ulf Möller, Bodo Möller]
5553 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5554 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5555 when fixing the server behaviour for backwards-compatible 'client
5556 hello' messages. (Note that the attack is impractical against
5557 SSL 3.0 and TLS 1.0 anyway because length and version checking
5558 means that the probability of guessing a valid ciphertext is
5559 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5562 Before 0.9.5, the countermeasure (hide the error by generating a
5563 random 'decryption result') did not work properly because
5564 ERR_clear_error() was missing, meaning that SSL_get_error() would
5565 detect the supposedly ignored error.
5567 Both problems are now fixed.
5570 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5571 (previously it was 1024).
5574 *) Fix for compatibility mode trust settings: ignore trust settings
5575 unless some valid trust or reject settings are present.
5578 *) Fix for blowfish EVP: its a variable length cipher.
5581 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5582 parameters in DSA public key structures and return an error in the
5583 DSA routines if parameters are absent.
5586 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5587 in the current directory if neither $RANDFILE nor $HOME was set.
5588 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5589 caused some confusion to Windows users who haven't defined $HOME.
5590 Thus RAND_file_name() is changed again: e_os.h can define a
5591 DEFAULT_HOME, which will be used if $HOME is not set.
5592 For Windows, we use "C:"; on other platforms, we still require
5593 environment variables.
5595 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5596 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5597 having multiple threads call RAND_poll() concurrently.
5600 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5601 combination of a flag and a thread ID variable.
5602 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5603 flag), *other* threads can enter ssleay_add_bytes without obeying
5604 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5605 that they do not hold after the first thread unsets add_do_not_lock).
5608 *) Change bctest again: '-x' expressions are not available in all
5612 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5614 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5615 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5617 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5618 the default extension for executables, if any. Also, make the perl
5619 scripts that use symlink() to test if it really exists and use "cp"
5620 if it doesn't. All this made OpenSSL compilable and installable in
5624 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5625 If SEQUENCE is length is indefinite just set c->slen to the total
5626 amount of data available.
5627 [Steve Henson, reported by shige@FreeBSD.org]
5628 [This change does not apply to 0.9.7.]
5630 *) Change bctest to avoid here-documents inside command substitution
5631 (workaround for FreeBSD /bin/sh bug).
5632 For compatibility with Ultrix, avoid shell functions (introduced
5633 in the bctest version that searches along $PATH).
5636 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5637 with des_encrypt() defined on some operating systems, like Solaris
5641 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5642 On the Importance of Eliminating Errors in Cryptographic
5643 Computations, J. Cryptology 14 (2001) 2, 101-119,
5644 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5647 *) MIPS assembler BIGNUM division bug fix.
5650 *) Disabled incorrect Alpha assembler code.
5653 *) Fix PKCS#7 decode routines so they correctly update the length
5654 after reading an EOC for the EXPLICIT tag.
5656 [This change does not apply to 0.9.7.]
5658 *) Fix bug in PKCS#12 key generation routines. This was triggered
5659 if a 3DES key was generated with a 0 initial byte. Include
5660 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5661 (but broken) behaviour.
5664 *) Enhance bctest to search for a working bc along $PATH and print
5666 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5668 *) Fix memory leaks in err.c: free err_data string if necessary;
5669 don't write to the wrong index in ERR_set_error_data.
5672 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5676 *) Replace rdtsc with _emit statements for VC++ version 5.
5677 [Jeremy Cooper <jeremy@baymoo.org>]
5679 *) Make it possible to reuse SSLv2 sessions.
5682 *) In copy_email() check for >= 0 as a return value for
5683 X509_NAME_get_index_by_NID() since 0 is a valid index.
5684 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5686 *) Avoid coredump with unsupported or invalid public keys by checking if
5687 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5688 PKCS7_verify() fails with non detached data.
5691 *) Don't use getenv in library functions when run as setuid/setgid.
5692 New function OPENSSL_issetugid().
5695 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5696 due to incorrect handling of multi-threading:
5698 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5700 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5702 3. Count how many times MemCheck_off() has been called so that
5703 nested use can be treated correctly. This also avoids
5704 inband-signalling in the previous code (which relied on the
5705 assumption that thread ID 0 is impossible).
5708 *) Add "-rand" option also to s_client and s_server.
5711 *) Fix CPU detection on Irix 6.x.
5712 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5713 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5715 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5718 [This change does not apply to 0.9.7.]
5720 *) Use the cached encoding of an X509_NAME structure rather than
5721 copying it. This is apparently the reason for the libsafe "errors"
5722 but the code is actually correct.
5725 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5726 Bleichenbacher's DSA attack.
5727 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5728 to be set and top=0 forces the highest bit to be set; top=-1 is new
5729 and leaves the highest bit random.
5730 [Ulf Moeller, Bodo Moeller]
5732 *) In the NCONF_...-based implementations for CONF_... queries
5733 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5734 a temporary CONF structure with the data component set to NULL
5735 (which gives segmentation faults in lh_retrieve).
5736 Instead, use NULL for the CONF pointer in CONF_get_string and
5737 CONF_get_number (which may use environment variables) and directly
5738 return NULL from CONF_get_section.
5741 *) Fix potential buffer overrun for EBCDIC.
5744 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5745 keyUsage if basicConstraints absent for a CA.
5748 *) Make SMIME_write_PKCS7() write mail header values with a format that
5749 is more generally accepted (no spaces before the semicolon), since
5750 some programs can't parse those values properly otherwise. Also make
5751 sure BIO's that break lines after each write do not create invalid
5755 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5756 macros previously used would not encode an empty SEQUENCE OF
5757 and break the signature.
5759 [This change does not apply to 0.9.7.]
5761 *) Zero the premaster secret after deriving the master secret in
5765 *) Add some EVP_add_digest_alias registrations (as found in
5766 OpenSSL_add_all_digests()) to SSL_library_init()
5767 aka OpenSSL_add_ssl_algorithms(). This provides improved
5768 compatibility with peers using X.509 certificates
5769 with unconventional AlgorithmIdentifier OIDs.
5772 *) Fix for Irix with NO_ASM.
5773 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5775 *) ./config script fixes.
5776 [Ulf Moeller, Richard Levitte]
5778 *) Fix 'openssl passwd -1'.
5781 *) Change PKCS12_key_gen_asc() so it can cope with non null
5782 terminated strings whose length is passed in the passlen
5783 parameter, for example from PEM callbacks. This was done
5784 by adding an extra length parameter to asc2uni().
5785 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5787 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5788 call failed, free the DSA structure.
5791 *) Fix to uni2asc() to cope with zero length Unicode strings.
5792 These are present in some PKCS#12 files.
5795 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5796 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5797 when writing a 32767 byte record.
5798 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5800 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5801 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5803 (RSA objects have a reference count access to which is protected
5804 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5805 so they are meant to be shared between threads.)
5806 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5807 "Reddie, Steven" <Steven.Reddie@ca.com>]
5809 *) Fix a deadlock in CRYPTO_mem_leaks().
5812 *) Use better test patterns in bntest.
5815 *) rand_win.c fix for Borland C.
5818 *) BN_rshift bugfix for n == 0.
5821 *) Add a 'bctest' script that checks for some known 'bc' bugs
5822 so that 'make test' does not abort just because 'bc' is broken.
5825 *) Store verify_result within SSL_SESSION also for client side to
5826 avoid potential security hole. (Re-used sessions on the client side
5827 always resulted in verify_result==X509_V_OK, not using the original
5828 result of the server certificate verification.)
5831 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5832 SSL3_RT_APPLICATION_DATA, return 0.
5833 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5837 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5838 releases, have been re-implemented by renaming the previous
5839 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5840 and ssl3_read_internal, respectively, and adding 'peek' parameters
5841 to them. The new ssl[23]_{read,peek} functions are calls to
5842 ssl[23]_read_internal with the 'peek' flag set appropriately.
5843 A 'peek' parameter has also been added to ssl3_read_bytes, which
5844 does the actual work for ssl3_read_internal.
5847 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5848 the method-specific "init()" handler. Also clean up ex_data after
5849 calling the method-specific "finish()" handler. Previously, this was
5850 happening the other way round.
5853 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5854 The previous value, 12, was not always sufficient for BN_mod_exp().
5857 *) Make sure that shared libraries get the internal name engine with
5858 the full version number and not just 0. This should mark the
5859 shared libraries as not backward compatible. Of course, this should
5860 be changed again when we can guarantee backward binary compatibility.
5863 *) Fix typo in get_cert_by_subject() in by_dir.c
5864 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5866 *) Rework the system to generate shared libraries:
5868 - Make note of the expected extension for the shared libraries and
5869 if there is a need for symbolic links from for example libcrypto.so.0
5870 to libcrypto.so.0.9.7. There is extended info in Configure for
5873 - Make as few rebuilds of the shared libraries as possible.
5875 - Still avoid linking the OpenSSL programs with the shared libraries.
5877 - When installing, install the shared libraries separately from the
5881 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5883 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5884 and not in SSL_clear because the latter is also used by the
5885 accept/connect functions; previously, the settings made by
5886 SSL_set_read_ahead would be lost during the handshake.
5887 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5889 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5890 Previously, it would create entries for disableed algorithms no
5894 *) Added several new manual pages for SSL_* function.
5897 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5899 *) In ssl23_get_client_hello, generate an error message when faced
5900 with an initial SSL 3.0/TLS record that is too small to contain the
5901 first two bytes of the ClientHello message, i.e. client_version.
5902 (Note that this is a pathologic case that probably has never happened
5903 in real life.) The previous approach was to use the version number
5904 from the record header as a substitute; but our protocol choice
5905 should not depend on that one because it is not authenticated
5906 by the Finished messages.
5909 *) More robust randomness gathering functions for Windows.
5910 [Jeffrey Altman <jaltman@columbia.edu>]
5912 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5913 not set then we don't setup the error code for issuer check errors
5914 to avoid possibly overwriting other errors which the callback does
5915 handle. If an application does set the flag then we assume it knows
5916 what it is doing and can handle the new informational codes
5920 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5921 a general "ANY" type, as such it should be able to decode anything
5922 including tagged types. However it didn't check the class so it would
5923 wrongly interpret tagged types in the same way as their universal
5924 counterpart and unknown types were just rejected. Changed so that the
5925 tagged and unknown types are handled in the same way as a SEQUENCE:
5926 that is the encoding is stored intact. There is also a new type
5927 "V_ASN1_OTHER" which is used when the class is not universal, in this
5928 case we have no idea what the actual type is so we just lump them all
5932 *) On VMS, stdout may very well lead to a file that is written to
5933 in a record-oriented fashion. That means that every write() will
5934 write a separate record, which will be read separately by the
5935 programs trying to read from it. This can be very confusing.
5937 The solution is to put a BIO filter in the way that will buffer
5938 text until a linefeed is reached, and then write everything a
5939 line at a time, so every record written will be an actual line,
5940 not chunks of lines and not (usually doesn't happen, but I've
5941 seen it once) several lines in one record. BIO_f_linebuffer() is
5944 Currently, it's a VMS-only method, because that's where it has
5945 been tested well enough.
5948 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5949 it can return incorrect results.
5950 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5951 but it was in 0.9.6-beta[12].)
5954 *) Disable the check for content being present when verifying detached
5955 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5956 include zero length content when signing messages.
5959 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5960 BIO_ctrl (for BIO pairs).
5963 *) Add DSO method for VMS.
5966 *) Bug fix: Montgomery multiplication could produce results with the
5970 *) Add RPM specification openssl.spec and modify it to build three
5971 packages. The default package contains applications, application
5972 documentation and run-time libraries. The devel package contains
5973 include files, static libraries and function documentation. The
5974 doc package contains the contents of the doc directory. The original
5975 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5978 *) Add a large number of documentation files for many SSL routines.
5979 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5981 *) Add a configuration entry for Sony News 4.
5982 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5984 *) Don't set the two most significant bits to one when generating a
5985 random number < q in the DSA library.
5988 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5989 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5990 the underlying transport is blocking) if a handshake took place.
5991 (The default behaviour is needed by applications such as s_client
5992 and s_server that use select() to determine when to use SSL_read;
5993 but for applications that know in advance when to expect data, it
5994 just makes things more complicated.)
5997 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6001 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6002 work better on such systems.
6003 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6005 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6006 Update PKCS12_parse() so it copies the friendlyName and the
6007 keyid to the certificates aux info.
6010 *) Fix bug in PKCS7_verify() which caused an infinite loop
6011 if there was more than one signature.
6012 [Sven Uszpelkat <su@celocom.de>]
6014 *) Major change in util/mkdef.pl to include extra information
6015 about each symbol, as well as presentig variables as well
6016 as functions. This change means that there's n more need
6017 to rebuild the .num files when some algorithms are excluded.
6020 *) Allow the verify time to be set by an application,
6021 rather than always using the current time.
6024 *) Phase 2 verify code reorganisation. The certificate
6025 verify code now looks up an issuer certificate by a
6026 number of criteria: subject name, authority key id
6027 and key usage. It also verifies self signed certificates
6028 by the same criteria. The main comparison function is
6029 X509_check_issued() which performs these checks.
6031 Lot of changes were necessary in order to support this
6032 without completely rewriting the lookup code.
6034 Authority and subject key identifier are now cached.
6036 The LHASH 'certs' is X509_STORE has now been replaced
6037 by a STACK_OF(X509_OBJECT). This is mainly because an
6038 LHASH can't store or retrieve multiple objects with
6039 the same hash value.
6041 As a result various functions (which were all internal
6042 use only) have changed to handle the new X509_STORE
6043 structure. This will break anything that messed round
6044 with X509_STORE internally.
6046 The functions X509_STORE_add_cert() now checks for an
6047 exact match, rather than just subject name.
6049 The X509_STORE API doesn't directly support the retrieval
6050 of multiple certificates matching a given criteria, however
6051 this can be worked round by performing a lookup first
6052 (which will fill the cache with candidate certificates)
6053 and then examining the cache for matches. This is probably
6054 the best we can do without throwing out X509_LOOKUP
6055 entirely (maybe later...).
6057 The X509_VERIFY_CTX structure has been enhanced considerably.
6059 All certificate lookup operations now go via a get_issuer()
6060 callback. Although this currently uses an X509_STORE it
6061 can be replaced by custom lookups. This is a simple way
6062 to bypass the X509_STORE hackery necessary to make this
6063 work and makes it possible to use more efficient techniques
6064 in future. A very simple version which uses a simple
6065 STACK for its trusted certificate store is also provided
6066 using X509_STORE_CTX_trusted_stack().
6068 The verify_cb() and verify() callbacks now have equivalents
6069 in the X509_STORE_CTX structure.
6071 X509_STORE_CTX also has a 'flags' field which can be used
6072 to customise the verify behaviour.
6075 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6076 excludes S/MIME capabilities.
6079 *) When a certificate request is read in keep a copy of the
6080 original encoding of the signed data and use it when outputing
6081 again. Signatures then use the original encoding rather than
6082 a decoded, encoded version which may cause problems if the
6083 request is improperly encoded.
6086 *) For consistency with other BIO_puts implementations, call
6087 buffer_write(b, ...) directly in buffer_puts instead of calling
6090 In BIO_puts, increment b->num_write as in BIO_write.
6091 [Peter.Sylvester@EdelWeb.fr]
6093 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6094 BN_zero, we may not return a BIGNUM with an array consisting of
6098 *) Avoid calling abort() from within the library when problems are
6099 detected, except if preprocessor symbols have been defined
6100 (such as REF_CHECK, BN_DEBUG etc.).
6103 *) New openssl application 'rsautl'. This utility can be
6104 used for low level RSA operations. DER public key
6105 BIO/fp routines also added.
6108 *) New Configure entry and patches for compiling on QNX 4.
6109 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6111 *) A demo state-machine implementation was sponsored by
6112 Nuron (http://www.nuron.com/) and is now available in
6113 demos/state_machine.
6116 *) New options added to the 'dgst' utility for signature
6117 generation and verification.
6120 *) Unrecognized PKCS#7 content types are now handled via a
6121 catch all ASN1_TYPE structure. This allows unsupported
6122 types to be stored as a "blob" and an application can
6123 encode and decode it manually.
6126 *) Fix various signed/unsigned issues to make a_strex.c
6128 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6130 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6131 length if passed a buffer. ASN1_INTEGER_to_BN failed
6132 if passed a NULL BN and its argument was negative.
6133 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6135 *) Modification to PKCS#7 encoding routines to output definite
6136 length encoding. Since currently the whole structures are in
6137 memory there's not real point in using indefinite length
6138 constructed encoding. However if OpenSSL is compiled with
6139 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6142 *) Added BIO_vprintf() and BIO_vsnprintf().
6145 *) Added more prefixes to parse for in the the strings written
6146 through a logging bio, to cover all the levels that are available
6147 through syslog. The prefixes are now:
6149 PANIC, EMERG, EMR => LOG_EMERG
6150 ALERT, ALR => LOG_ALERT
6151 CRIT, CRI => LOG_CRIT
6152 ERROR, ERR => LOG_ERR
6153 WARNING, WARN, WAR => LOG_WARNING
6154 NOTICE, NOTE, NOT => LOG_NOTICE
6155 INFO, INF => LOG_INFO
6156 DEBUG, DBG => LOG_DEBUG
6158 and as before, if none of those prefixes are present at the
6159 beginning of the string, LOG_ERR is chosen.
6161 On Win32, the LOG_* levels are mapped according to this:
6163 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6164 LOG_WARNING => EVENTLOG_WARNING_TYPE
6165 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6169 *) Made it possible to reconfigure with just the configuration
6170 argument "reconf" or "reconfigure". The command line arguments
6171 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6172 and are retrieved from there when reconfiguring.
6176 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6178 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6181 *) The obj_dat.pl script was messing up the sorting of object
6182 names. The reason was that it compared the quoted version
6183 of strings as a result "OCSP" > "OCSP Signing" because
6184 " > SPACE. Changed script to store unquoted versions of
6185 names and add quotes on output. It was also omitting some
6186 names from the lookup table if they were given a default
6187 value (that is if SN is missing it is given the same
6188 value as LN and vice versa), these are now added on the
6189 grounds that if an object has a name we should be able to
6190 look it up. Finally added warning output when duplicate
6191 short or long names are found.
6194 *) Changes needed for Tandem NSK.
6195 [Scott Uroff <scott@xypro.com>]
6197 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6198 RSA_padding_check_SSLv23(), special padding was never detected
6199 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6200 version rollback attacks was not effective.
6202 In s23_clnt.c, don't use special rollback-attack detection padding
6203 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6204 client; similarly, in s23_srvr.c, don't do the rollback check if
6205 SSL 2.0 is the only protocol enabled in the server.
6208 *) Make it possible to get hexdumps of unprintable data with 'openssl
6209 asn1parse'. By implication, the functions ASN1_parse_dump() and
6210 BIO_dump_indent() are added.
6213 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6214 these print out strings and name structures based on various
6215 flags including RFC2253 support and proper handling of
6216 multibyte characters. Added options to the 'x509' utility
6217 to allow the various flags to be set.
6220 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6221 Also change the functions X509_cmp_current_time() and
6222 X509_gmtime_adj() work with an ASN1_TIME structure,
6223 this will enable certificates using GeneralizedTime in validity
6224 dates to be checked.
6227 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6228 negative public key encodings) on by default,
6229 NO_NEG_PUBKEY_BUG can be set to disable it.
6232 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6233 content octets. An i2c_ASN1_OBJECT is unnecessary because
6234 the encoding can be trivially obtained from the structure.
6237 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6238 not read locks (CRYPTO_r_[un]lock).
6241 *) A first attempt at creating official support for shared
6242 libraries through configuration. I've kept it so the
6243 default is static libraries only, and the OpenSSL programs
6244 are always statically linked for now, but there are
6245 preparations for dynamic linking in place.
6246 This has been tested on Linux and Tru64.
6249 *) Randomness polling function for Win9x, as described in:
6250 Peter Gutmann, Software Generation of Practically Strong
6254 *) Fix so PRNG is seeded in req if using an already existing
6258 *) New options to smime application. -inform and -outform
6259 allow alternative formats for the S/MIME message including
6260 PEM and DER. The -content option allows the content to be
6261 specified separately. This should allow things like Netscape
6262 form signing output easier to verify.
6265 *) Fix the ASN1 encoding of tags using the 'long form'.
6268 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6269 STRING types. These convert content octets to and from the
6270 underlying type. The actual tag and length octets are
6271 already assumed to have been read in and checked. These
6272 are needed because all other string types have virtually
6273 identical handling apart from the tag. By having versions
6274 of the ASN1 functions that just operate on content octets
6275 IMPLICIT tagging can be handled properly. It also allows
6276 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6277 and ASN1_INTEGER are identical apart from the tag.
6280 *) Change the handling of OID objects as follows:
6282 - New object identifiers are inserted in objects.txt, following
6283 the syntax given in objects.README.
6284 - objects.pl is used to process obj_mac.num and create a new
6286 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6289 This is currently kind of a hack, and the perl code in objects.pl
6290 isn't very elegant, but it works as I intended. The simplest way
6291 to check that it worked correctly is to look in obj_dat.h and
6292 check the array nid_objs and make sure the objects haven't moved
6293 around (this is important!). Additions are OK, as well as
6294 consistent name changes.
6297 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6300 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6301 The given file adds to whatever has already been seeded into the
6302 random pool through the RANDFILE configuration file option or
6303 environment variable, or the default random state file.
6306 *) mkstack.pl now sorts each macro group into lexical order.
6307 Previously the output order depended on the order the files
6308 appeared in the directory, resulting in needless rewriting
6312 *) Patches to make OpenSSL compile under Win32 again. Mostly
6313 work arounds for the VC++ problem that it treats func() as
6314 func(void). Also stripped out the parts of mkdef.pl that
6315 added extra typesafe functions: these no longer exist.
6318 *) Reorganisation of the stack code. The macros are now all
6319 collected in safestack.h . Each macro is defined in terms of
6320 a "stack macro" of the form SKM_<name>(type, a, b). The
6321 DEBUG_SAFESTACK is now handled in terms of function casts,
6322 this has the advantage of retaining type safety without the
6323 use of additional functions. If DEBUG_SAFESTACK is not defined
6324 then the non typesafe macros are used instead. Also modified the
6325 mkstack.pl script to handle the new form. Needs testing to see
6326 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6327 the default if no major problems. Similar behaviour for ASN1_SET_OF
6328 and PKCS12_STACK_OF.
6331 *) When some versions of IIS use the 'NET' form of private key the
6332 key derivation algorithm is different. Normally MD5(password) is
6333 used as a 128 bit RC4 key. In the modified case
6334 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6335 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6336 as the old Netscape_RSA functions except they have an additional
6337 'sgckey' parameter which uses the modified algorithm. Also added
6338 an -sgckey command line option to the rsa utility. Thanks to
6339 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6340 algorithm to openssl-dev.
6343 *) The evp_local.h macros were using 'c.##kname' which resulted in
6344 invalid expansion on some systems (SCO 5.0.5 for example).
6345 Corrected to 'c.kname'.
6346 [Phillip Porch <root@theporch.com>]
6348 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6349 a STACK of email addresses from a certificate or request, these look
6350 in the subject name and the subject alternative name extensions and
6351 omit any duplicate addresses.
6354 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6355 This makes DSA verification about 2 % faster.
6358 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6359 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6360 plus overhead for 1024 bit moduli).
6361 This makes exponentiations about 0.5 % faster for 1024 bit
6362 exponents (as measured by "openssl speed rsa2048").
6365 *) Rename memory handling macros to avoid conflicts with other
6367 Malloc => OPENSSL_malloc
6368 Malloc_locked => OPENSSL_malloc_locked
6369 Realloc => OPENSSL_realloc
6370 Free => OPENSSL_free
6373 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6374 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6377 *) CygWin32 support.
6378 [John Jarvie <jjarvie@newsguy.com>]
6380 *) The type-safe stack code has been rejigged. It is now only compiled
6381 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6382 by default all type-specific stack functions are "#define"d back to
6383 standard stack functions. This results in more streamlined output
6384 but retains the type-safety checking possibilities of the original
6388 *) The STACK code has been cleaned up, and certain type declarations
6389 that didn't make a lot of sense have been brought in line. This has
6390 also involved a cleanup of sorts in safestack.h to more correctly
6391 map type-safe stack functions onto their plain stack counterparts.
6392 This work has also resulted in a variety of "const"ifications of
6393 lots of the code, especially "_cmp" operations which should normally
6394 be prototyped with "const" parameters anyway.
6397 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6398 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6399 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6400 where all of 'md' is used each time the PRNG is used, but 'state'
6401 is used only indexed by a cyclic counter. As entropy may not be
6402 well distributed from the beginning, 'md' is important as a
6403 chaining variable. However, the output function chains only half
6404 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6405 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6406 in all of 'state' being rewritten, with the new values depending
6407 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6410 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6411 the handshake is continued after ssl_verify_cert_chain();
6412 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6413 can lead to 'unexplainable' connection aborts later.
6414 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6416 *) Major EVP API cipher revision.
6417 Add hooks for extra EVP features. This allows various cipher
6418 parameters to be set in the EVP interface. Support added for variable
6419 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6420 setting of RC2 and RC5 parameters.
6422 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6425 Remove lots of duplicated code from the EVP library. For example *every*
6426 cipher init() function handles the 'iv' in the same way according to the
6427 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6428 for CFB and OFB modes they zero ctx->num.
6430 New functionality allows removal of S/MIME code RC2 hack.
6432 Most of the routines have the same form and so can be declared in terms
6435 By shifting this to the top level EVP_CipherInit() it can be removed from
6436 all individual ciphers. If the cipher wants to handle IVs or keys
6437 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6440 Change lots of functions like EVP_EncryptUpdate() to now return a
6441 value: although software versions of the algorithms cannot fail
6442 any installed hardware versions can.
6445 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6446 this option is set, tolerate broken clients that send the negotiated
6447 protocol version number instead of the requested protocol version
6451 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6452 i.e. non-zero for export ciphersuites, zero otherwise.
6453 Previous versions had this flag inverted, inconsistent with
6454 rsa_tmp_cb (..._TMP_RSA_CB).
6455 [Bodo Moeller; problem reported by Amit Chopra]
6457 *) Add missing DSA library text string. Work around for some IIS
6458 key files with invalid SEQUENCE encoding.
6461 *) Add a document (doc/standards.txt) that list all kinds of standards
6462 and so on that are implemented in OpenSSL.
6465 *) Enhance c_rehash script. Old version would mishandle certificates
6466 with the same subject name hash and wouldn't handle CRLs at all.
6467 Added -fingerprint option to crl utility, to support new c_rehash
6471 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6474 *) Fix for SSL server purpose checking. Server checking was
6475 rejecting certificates which had extended key usage present
6476 but no ssl client purpose.
6477 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6479 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6480 is a little unclear about how a blank password is handled.
6481 Since the password in encoded as a BMPString with terminating
6482 double NULL a zero length password would end up as just the
6483 double NULL. However no password at all is different and is
6484 handled differently in the PKCS#12 key generation code. NS
6485 treats a blank password as zero length. MSIE treats it as no
6486 password on export: but it will try both on import. We now do
6487 the same: PKCS12_parse() tries zero length and no password if
6488 the password is set to "" or NULL (NULL is now a valid password:
6489 it wasn't before) as does the pkcs12 application.
6492 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6493 perror when PEM_read_bio_X509_REQ fails, the error message must
6494 be obtained from the error queue.
6497 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6498 it in ERR_remove_state if appropriate, and change ERR_get_state
6499 accordingly to avoid race conditions (this is necessary because
6500 thread_hash is no longer constant once set).
6503 *) Bugfix for linux-elf makefile.one.
6506 *) RSA_get_default_method() will now cause a default
6507 RSA_METHOD to be chosen if one doesn't exist already.
6508 Previously this was only set during a call to RSA_new()
6509 or RSA_new_method(NULL) meaning it was possible for
6510 RSA_get_default_method() to return NULL.
6513 *) Added native name translation to the existing DSO code
6514 that will convert (if the flag to do so is set) filenames
6515 that are sufficiently small and have no path information
6516 into a canonical native form. Eg. "blah" converted to
6517 "libblah.so" or "blah.dll" etc.
6520 *) New function ERR_error_string_n(e, buf, len) which is like
6521 ERR_error_string(e, buf), but writes at most 'len' bytes
6522 including the 0 terminator. For ERR_error_string_n, 'buf'
6524 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6526 *) CONF library reworked to become more general. A new CONF
6527 configuration file reader "class" is implemented as well as a
6528 new functions (NCONF_*, for "New CONF") to handle it. The now
6529 old CONF_* functions are still there, but are reimplemented to
6530 work in terms of the new functions. Also, a set of functions
6531 to handle the internal storage of the configuration data is
6532 provided to make it easier to write new configuration file
6533 reader "classes" (I can definitely see something reading a
6534 configuration file in XML format, for example), called _CONF_*,
6535 or "the configuration storage API"...
6537 The new configuration file reading functions are:
6539 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6540 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6542 NCONF_default, NCONF_WIN32
6544 NCONF_dump_fp, NCONF_dump_bio
6546 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6547 NCONF_new creates a new CONF object. This works in the same way
6548 as other interfaces in OpenSSL, like the BIO interface.
6549 NCONF_dump_* dump the internal storage of the configuration file,
6550 which is useful for debugging. All other functions take the same
6551 arguments as the old CONF_* functions wth the exception of the
6552 first that must be a `CONF *' instead of a `LHASH *'.
6554 To make it easer to use the new classes with the old CONF_* functions,
6555 the function CONF_set_default_method is provided.
6558 *) Add '-tls1' option to 'openssl ciphers', which was already
6559 mentioned in the documentation but had not been implemented.
6560 (This option is not yet really useful because even the additional
6561 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6564 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6565 OpenSSL-based applications) load shared libraries and bind to
6566 them in a portable way.
6567 [Geoff Thorpe, with contributions from Richard Levitte]
6569 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6571 *) Make sure _lrotl and _lrotr are only used with MSVC.
6573 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6574 (the default implementation of RAND_status).
6576 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6577 to '-clrext' (= clear extensions), as intended and documented.
6578 [Bodo Moeller; inconsistency pointed out by Michael Attili
6581 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6582 was larger than the MD block size.
6583 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6585 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6586 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6587 using the passed key: if the passed key was a private key the result
6588 of X509_print(), for example, would be to print out all the private key
6592 *) des_quad_cksum() byte order bug fix.
6593 [Ulf Möller, using the problem description in krb4-0.9.7, where
6594 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6596 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6598 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6600 *) For easily testing in shell scripts whether some command
6601 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6602 returns with exit code 0 iff no command of the given name is available.
6603 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6604 the output goes to stdout and nothing is printed to stderr.
6605 Additional arguments are always ignored.
6607 Since for each cipher there is a command of the same name,
6608 the 'no-cipher' compilation switches can be tested this way.
6610 ('openssl no-XXX' is not able to detect pseudo-commands such
6611 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6614 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6617 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6618 is set; it will be thrown away anyway because each handshake creates
6620 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6621 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6622 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6623 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6626 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6627 'Q' and 'R' lose their special meanings (quit/renegotiate).
6628 This is part of what -quiet does; unlike -quiet, -ign_eof
6629 does not suppress any output.
6632 *) Add compatibility options to the purpose and trust code. The
6633 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6634 accepts a certificate or CA, this was the previous behaviour,
6635 with all the associated security issues.
6637 X509_TRUST_COMPAT is the old trust behaviour: only and
6638 automatically trust self signed roots in certificate store. A
6639 new trust setting X509_TRUST_DEFAULT is used to specify that
6640 a purpose has no associated trust setting and it should instead
6641 use the value in the default purpose.
6644 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6645 and fix a memory leak.
6648 *) In util/mkerr.pl (which implements 'make errors'), preserve
6649 reason strings from the previous version of the .c file, as
6650 the default to have only downcase letters (and digits) in
6651 automatically generated reasons codes is not always appropriate.
6654 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6655 using strerror. Previously, ERR_reason_error_string() returned
6656 library names as reason strings for SYSerr; but SYSerr is a special
6657 case where small numbers are errno values, not library numbers.
6660 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6661 converts DSA parameters into DH parameters. (When creating parameters,
6662 DSA_generate_parameters is used.)
6665 *) Include 'length' (recommended exponent length) in C code generated
6666 by 'openssl dhparam -C'.
6669 *) The second argument to set_label in perlasm was already being used
6670 so couldn't be used as a "file scope" flag. Moved to third argument
6674 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6675 instead of RAND_bytes for encryption IVs and salts.
6678 *) Include RAND_status() into RAND_METHOD instead of implementing
6679 it only for md_rand.c Otherwise replacing the PRNG by calling
6680 RAND_set_rand_method would be impossible.
6683 *) Don't let DSA_generate_key() enter an infinite loop if the random
6684 number generation fails.
6687 *) New 'rand' application for creating pseudo-random output.
6690 *) Added configuration support for Linux/IA64
6691 [Rolf Haberrecker <rolf@suse.de>]
6693 *) Assembler module support for Mingw32.
6696 *) Shared library support for HPUX (in shlib/).
6697 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6699 *) Shared library support for Solaris gcc.
6700 [Lutz Behnke <behnke@trustcenter.de>]
6702 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6704 *) PKCS7_encrypt() was adding text MIME headers twice because they
6705 were added manually and by SMIME_crlf_copy().
6708 *) In bntest.c don't call BN_rand with zero bits argument.
6709 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6711 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6712 case was implemented. This caused BN_div_recp() to fail occasionally.
6715 *) Add an optional second argument to the set_label() in the perl
6716 assembly language builder. If this argument exists and is set
6717 to 1 it signals that the assembler should use a symbol whose
6718 scope is the entire file, not just the current function. This
6719 is needed with MASM which uses the format label:: for this scope.
6720 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6722 *) Change the ASN1 types so they are typedefs by default. Before
6723 almost all types were #define'd to ASN1_STRING which was causing
6724 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6728 *) Change names of new functions to the new get1/get0 naming
6729 convention: After 'get1', the caller owns a reference count
6730 and has to call ..._free; 'get0' returns a pointer to some
6731 data structure without incrementing reference counters.
6732 (Some of the existing 'get' functions increment a reference
6733 counter, some don't.)
6734 Similarly, 'set1' and 'add1' functions increase reference
6735 counters or duplicate objects.
6738 *) Allow for the possibility of temp RSA key generation failure:
6739 the code used to assume it always worked and crashed on failure.
6742 *) Fix potential buffer overrun problem in BIO_printf().
6743 [Ulf Möller, using public domain code by Patrick Powell; problem
6744 pointed out by David Sacerdote <das33@cornell.edu>]
6746 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6747 RAND_egd() and RAND_status(). In the command line application,
6748 the EGD socket can be specified like a seed file using RANDFILE
6752 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6753 Some CAs (e.g. Verisign) distribute certificates in this form.
6756 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6757 list to exclude them. This means that no special compilation option
6758 is needed to use anonymous DH: it just needs to be included in the
6762 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6763 EVP_MD_type. The old functionality is available in a new macro called
6764 EVP_MD_md(). Change code that uses it and update docs.
6767 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6768 where the 'void *' argument is replaced by a function pointer argument.
6769 Previously 'void *' was abused to point to functions, which works on
6770 many platforms, but is not correct. As these functions are usually
6771 called by macros defined in OpenSSL header files, most source code
6772 should work without changes.
6775 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6776 sections with information on -D... compiler switches used for
6777 compiling the library so that applications can see them. To enable
6778 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6779 must be defined. E.g.,
6780 #define OPENSSL_ALGORITHM_DEFINES
6781 #include <openssl/opensslconf.h>
6782 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6783 [Richard Levitte, Ulf and Bodo Möller]
6785 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6789 *) Change the 'other' type in certificate aux info to a STACK_OF
6790 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6791 the required ASN1 format: arbitrary types determined by an OID.
6794 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6795 argument to 'req'. This is not because the function is newer or
6796 better than others it just uses the work 'NEW' in the certificate
6797 request header lines. Some software needs this.
6800 *) Reorganise password command line arguments: now passwords can be
6801 obtained from various sources. Delete the PEM_cb function and make
6802 it the default behaviour: i.e. if the callback is NULL and the
6803 usrdata argument is not NULL interpret it as a null terminated pass
6804 phrase. If usrdata and the callback are NULL then the pass phrase
6805 is prompted for as usual.
6808 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6809 the support is automatically enabled. The resulting binaries will
6810 autodetect the card and use it if present.
6811 [Ben Laurie and Compaq Inc.]
6813 *) Work around for Netscape hang bug. This sends certificate request
6814 and server done in one record. Since this is perfectly legal in the
6815 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6816 the bugs/SSLv3 entry for more info.
6819 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6822 *) Add -rand argument to smime and pkcs12 applications and read/write
6826 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6829 *) Add command line password options to the remaining applications.
6832 *) Bug fix for BN_div_recp() for numerators with an even number of
6836 *) More tests in bntest.c, and changed test_bn output.
6839 *) ./config recognizes MacOS X now.
6842 *) Bug fix for BN_div() when the first words of num and divsor are
6843 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6846 *) Add support for various broken PKCS#8 formats, and command line
6847 options to produce them.
6850 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6851 get temporary BIGNUMs from a BN_CTX.
6854 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6858 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6859 include a #define from the old name to the new. The original intent
6860 was that statically linked binaries could for example just call
6861 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6862 link with digests. This never worked becayse SSLeay_add_all_digests()
6863 and SSLeay_add_all_ciphers() were in the same source file so calling
6864 one would link with the other. They are now in separate source files.
6867 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6870 *) Use a less unusual form of the Miller-Rabin primality test (it used
6871 a binary algorithm for exponentiation integrated into the Miller-Rabin
6872 loop, our standard modexp algorithms are faster).
6875 *) Support for the EBCDIC character set completed.
6876 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6878 *) Source code cleanups: use const where appropriate, eliminate casts,
6879 use void * instead of char * in lhash.
6882 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6883 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6884 this the server could overwrite ephemeral keys that the client
6888 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6889 using 50 iterations of the Rabin-Miller test.
6891 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6892 iterations of the Rabin-Miller test as required by the appendix
6893 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6894 As BN_is_prime_fasttest includes trial division, DSA parameter
6895 generation becomes much faster.
6897 This implies a change for the callback functions in DSA_is_prime
6898 and DSA_generate_parameters: The callback function is called once
6899 for each positive witness in the Rabin-Miller test, not just
6900 occasionally in the inner loop; and the parameters to the
6901 callback function now provide an iteration count for the outer
6902 loop rather than for the current invocation of the inner loop.
6903 DSA_generate_parameters additionally can call the callback
6904 function with an 'iteration count' of -1, meaning that a
6905 candidate has passed the trial division test (when q is generated
6906 from an application-provided seed, trial division is skipped).
6909 *) New function BN_is_prime_fasttest that optionally does trial
6910 division before starting the Rabin-Miller test and has
6911 an additional BN_CTX * argument (whereas BN_is_prime always
6912 has to allocate at least one BN_CTX).
6913 'callback(1, -1, cb_arg)' is called when a number has passed the
6914 trial division stage.
6917 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6921 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6924 *) New function BN_pseudo_rand().
6927 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6928 bignum version of BN_from_montgomery() with the working code from
6929 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6933 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6934 made it impossible to use the same SSL_SESSION data structure in
6935 SSL2 clients in multiple threads.
6938 *) The return value of RAND_load_file() no longer counts bytes obtained
6939 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6940 to seed the PRNG (previously an explicit byte count was required).
6941 [Ulf Möller, Bodo Möller]
6943 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6944 used (char *) instead of (void *) and had casts all over the place.
6947 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6950 *) Retain source code compatibility for BN_prime_checks macro:
6951 BN_is_prime(..., BN_prime_checks, ...) now uses
6952 BN_prime_checks_for_size to determine the appropriate number of
6953 Rabin-Miller iterations.
6956 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6957 DH_CHECK_P_NOT_SAFE_PRIME.
6958 (Check if this is true? OpenPGP calls them "strong".)
6961 *) Merge the functionality of "dh" and "gendh" programs into a new program
6962 "dhparam". The old programs are retained for now but will handle DH keys
6963 (instead of parameters) in future.
6966 *) Make the ciphers, s_server and s_client programs check the return values
6967 when a new cipher list is set.
6970 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6971 ciphers. Before when the 56bit ciphers were enabled the sorting was
6974 The syntax for the cipher sorting has been extended to support sorting by
6975 cipher-strength (using the strength_bits hard coded in the tables).
6976 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6978 Fix a bug in the cipher-command parser: when supplying a cipher command
6979 string with an "undefined" symbol (neither command nor alphanumeric
6980 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6981 an error is flagged.
6983 Due to the strength-sorting extension, the code of the
6984 ssl_create_cipher_list() function was completely rearranged. I hope that
6985 the readability was also increased :-)
6986 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6988 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6989 for the first serial number and places 2 in the serial number file. This
6990 avoids problems when the root CA is created with serial number zero and
6991 the first user certificate has the same issuer name and serial number
6995 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6996 the new code. Add documentation for this stuff.
6999 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7000 X509_*() to X509at_*() on the grounds that they don't handle X509
7001 structures and behave in an analagous way to the X509v3 functions:
7002 they shouldn't be called directly but wrapper functions should be used
7005 So we also now have some wrapper functions that call the X509at functions
7006 when passed certificate requests. (TO DO: similar things can be done with
7007 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7008 things. Some of these need some d2i or i2d and print functionality
7009 because they handle more complex structures.)
7012 *) Add missing #ifndefs that caused missing symbols when building libssl
7013 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7014 NO_RSA in ssl/s2*.c.
7015 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7017 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7018 has a return value which indicates the quality of the random data
7019 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7020 error queue. New function RAND_pseudo_bytes() generates output that is
7021 guaranteed to be unique but not unpredictable. RAND_add is like
7022 RAND_seed, but takes an extra argument for an entropy estimate
7023 (RAND_seed always assumes full entropy).
7026 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7027 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7028 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7029 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7030 false-positive rate of at most 2^-80 for random input.
7033 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7036 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7037 in the 0.9.5 release), this returns the chain
7038 from an X509_CTX structure with a dup of the stack and all
7039 the X509 reference counts upped: so the stack will exist
7040 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7043 Also make SSL_SESSION_print() print out the verify return
7047 *) Add manpage for the pkcs12 command. Also change the default
7048 behaviour so MAC iteration counts are used unless the new
7049 -nomaciter option is used. This improves file security and
7050 only older versions of MSIE (4.0 for example) need it.
7053 *) Honor the no-xxx Configure options when creating .DEF files.
7056 *) Add PKCS#10 attributes to field table: challengePassword,
7057 unstructuredName and unstructuredAddress. These are taken from
7058 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7059 international characters are used.
7061 More changes to X509_ATTRIBUTE code: allow the setting of types
7062 based on strings. Remove the 'loc' parameter when adding
7063 attributes because these will be a SET OF encoding which is sorted
7067 *) Initial changes to the 'req' utility to allow request generation
7068 automation. This will allow an application to just generate a template
7069 file containing all the field values and have req construct the
7072 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7073 used all over the place including certificate requests and PKCS#7
7074 structures. They are currently handled manually where necessary with
7075 some primitive wrappers for PKCS#7. The new functions behave in a
7076 manner analogous to the X509 extension functions: they allow
7077 attributes to be looked up by NID and added.
7079 Later something similar to the X509V3 code would be desirable to
7080 automatically handle the encoding, decoding and printing of the
7081 more complex types. The string types like challengePassword can
7082 be handled by the string table functions.
7084 Also modified the multi byte string table handling. Now there is
7085 a 'global mask' which masks out certain types. The table itself
7086 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7087 is useful when for example there is only one permissible type
7088 (as in countryName) and using the mask might result in no valid
7092 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7093 SSL_get_peer_finished to allow applications to obtain the latest
7094 Finished messages sent to the peer or expected from the peer,
7095 respectively. (SSL_get_peer_finished is usually the Finished message
7096 actually received from the peer, otherwise the protocol will be aborted.)
7098 As the Finished message are message digests of the complete handshake
7099 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7100 be used for external authentication procedures when the authentication
7101 provided by SSL/TLS is not desired or is not enough.
7104 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7105 the host supports BWX extension and if Compaq C is present on the
7106 $PATH. Just exploiting of the BWX extension results in 20-30%
7107 performance kick for some algorithms, e.g. DES and RC4 to mention
7108 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7112 *) Add support for MS "fast SGC". This is arguably a violation of the
7113 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7114 weak crypto and after checking the certificate is SGC a second one
7115 with strong crypto. MS SGC stops the first handshake after receiving
7116 the server certificate message and sends a second client hello. Since
7117 a server will typically do all the time consuming operations before
7118 expecting any further messages from the client (server key exchange
7119 is the most expensive) there is little difference between the two.
7121 To get OpenSSL to support MS SGC we have to permit a second client
7122 hello message after we have sent server done. In addition we have to
7123 reset the MAC if we do get this second client hello.
7126 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7127 if a DER encoded private key is RSA or DSA traditional format. Changed
7128 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7129 format DER encoded private key. Newer code should use PKCS#8 format which
7130 has the key type encoded in the ASN1 structure. Added DER private key
7131 support to pkcs8 application.
7134 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7135 ciphersuites has been selected (as required by the SSL 3/TLS 1
7136 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7137 is set, we interpret this as a request to violate the specification
7138 (the worst that can happen is a handshake failure, and 'correct'
7139 behaviour would result in a handshake failure anyway).
7142 *) In SSL_CTX_add_session, take into account that there might be multiple
7143 SSL_SESSION structures with the same session ID (e.g. when two threads
7144 concurrently obtain them from an external cache).
7145 The internal cache can handle only one SSL_SESSION with a given ID,
7146 so if there's a conflict, we now throw out the old one to achieve
7150 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7151 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7152 some routines that use cipher OIDs: some ciphers do not have OIDs
7153 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7157 *) Simplify the trust setting structure and code. Now we just have
7158 two sequences of OIDs for trusted and rejected settings. These will
7159 typically have values the same as the extended key usage extension
7160 and any application specific purposes.
7162 The trust checking code now has a default behaviour: it will just
7163 check for an object with the same NID as the passed id. Functions can
7164 be provided to override either the default behaviour or the behaviour
7165 for a given id. SSL client, server and email already have functions
7166 in place for compatibility: they check the NID and also return "trusted"
7167 if the certificate is self signed.
7170 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7171 traditional format into an EVP_PKEY structure.
7174 *) Add a password callback function PEM_cb() which either prompts for
7175 a password if usr_data is NULL or otherwise assumes it is a null
7176 terminated password. Allow passwords to be passed on command line
7177 environment or config files in a few more utilities.
7180 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7181 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7182 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7183 Update documentation.
7186 *) Support for ASN1 "NULL" type. This could be handled before by using
7187 ASN1_TYPE but there wasn't any function that would try to read a NULL
7188 and produce an error if it couldn't. For compatibility we also have
7189 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7190 don't allocate anything because they don't need to.
7193 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7195 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7197 *) Rebuild of the memory allocation routines used by OpenSSL code and
7198 possibly others as well. The purpose is to make an interface that
7199 provide hooks so anyone can build a separate set of allocation and
7200 deallocation routines to be used by OpenSSL, for example memory
7201 pool implementations, or something else, which was previously hard
7202 since Malloc(), Realloc() and Free() were defined as macros having
7203 the values malloc, realloc and free, respectively (except for Win32
7204 compilations). The same is provided for memory debugging code.
7205 OpenSSL already comes with functionality to find memory leaks, but
7206 this gives people a chance to debug other memory problems.
7208 With these changes, a new set of functions and macros have appeared:
7210 CRYPTO_set_mem_debug_functions() [F]
7211 CRYPTO_get_mem_debug_functions() [F]
7212 CRYPTO_dbg_set_options() [F]
7213 CRYPTO_dbg_get_options() [F]
7214 CRYPTO_malloc_debug_init() [M]
7216 The memory debug functions are NULL by default, unless the library
7217 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7218 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7219 gives the standard debugging functions that come with OpenSSL) or
7220 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7221 provided by the library user) must be used. When the standard
7222 debugging functions are used, CRYPTO_dbg_set_options can be used to
7223 request additional information:
7224 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7225 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7227 Also, things like CRYPTO_set_mem_functions will always give the
7228 expected result (the new set of functions is used for allocation
7229 and deallocation) at all times, regardless of platform and compiler
7232 To finish it up, some functions that were never use in any other
7233 way than through macros have a new API and new semantic:
7236 CRYPTO_dbg_realloc()
7239 All macros of value have retained their old syntax.
7240 [Richard Levitte and Bodo Moeller]
7242 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7243 ordering of SMIMECapabilities wasn't in "strength order" and there
7244 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7248 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7249 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7250 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7252 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7253 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7254 functionality to handle multipart/signed properly) and a utility
7255 called 'smime' to call all this stuff. This is based on code I
7256 originally wrote for Celo who have kindly allowed it to be
7257 included in OpenSSL.
7260 *) Add variants des_set_key_checked and des_set_key_unchecked of
7261 des_set_key (aka des_key_sched). Global variable des_check_key
7262 decides which of these is called by des_set_key; this way
7263 des_check_key behaves as it always did, but applications and
7264 the library itself, which was buggy for des_check_key == 1,
7265 have a cleaner way to pick the version they need.
7268 *) New function PKCS12_newpass() which changes the password of a
7272 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7273 dynamic mix. In both cases the ids can be used as an index into the
7274 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7275 functions so they accept a list of the field values and the
7276 application doesn't need to directly manipulate the X509_TRUST
7280 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7284 *) Modify the way the V3 extension code looks up extensions. This now
7285 works in a similar way to the object code: we have some "standard"
7286 extensions in a static table which is searched with OBJ_bsearch()
7287 and the application can add dynamic ones if needed. The file
7288 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7289 updated whenever a new extension is added to the core code and kept
7290 in ext_nid order. There is a simple program 'tabtest.c' which checks
7291 this. New extensions are not added too often so this file can readily
7292 be maintained manually.
7294 There are two big advantages in doing things this way. The extensions
7295 can be looked up immediately and no longer need to be "added" using
7296 X509V3_add_standard_extensions(): this function now does nothing.
7297 [Side note: I get *lots* of email saying the extension code doesn't
7298 work because people forget to call this function]
7299 Also no dynamic allocation is done unless new extensions are added:
7300 so if we don't add custom extensions there is no need to call
7301 X509V3_EXT_cleanup().
7304 *) Modify enc utility's salting as follows: make salting the default. Add a
7305 magic header, so unsalted files fail gracefully instead of just decrypting
7306 to garbage. This is because not salting is a big security hole, so people
7307 should be discouraged from doing it.
7310 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7311 digest to be passed on the command line but it only used this
7312 parameter when signing a certificate. Modified so all relevant
7313 operations are affected by the digest parameter including the
7314 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7315 DSA key was used because it didn't fix the digest.
7318 *) Initial certificate chain verify code. Currently tests the untrusted
7319 certificates for consistency with the verify purpose (which is set
7320 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7322 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7323 this is because it will reject chains with invalid extensions whereas
7324 every previous version of OpenSSL and SSLeay made no checks at all.
7326 Trust code: checks the root CA for the relevant trust settings. Trust
7327 settings have an initial value consistent with the verify purpose: e.g.
7328 if the verify purpose is for SSL client use it expects the CA to be
7329 trusted for SSL client use. However the default value can be changed to
7330 permit custom trust settings: one example of this would be to only trust
7331 certificates from a specific "secure" set of CAs.
7333 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7334 which should be used for version portability: especially since the
7335 verify structure is likely to change more often now.
7337 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7338 to set them. If not set then assume SSL clients will verify SSL servers
7341 Two new options to the verify program: -untrusted allows a set of
7342 untrusted certificates to be passed in and -purpose which sets the
7343 intended purpose of the certificate. If a purpose is set then the
7344 new chain verify code is used to check extension consistency.
7347 *) Support for the authority information access extension.
7350 *) Modify RSA and DSA PEM read routines to transparently handle
7351 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7352 public keys in a format compatible with certificate
7353 SubjectPublicKeyInfo structures. Unfortunately there were already
7354 functions called *_PublicKey_* which used various odd formats so
7355 these are retained for compatibility: however the DSA variants were
7356 never in a public release so they have been deleted. Changed dsa/rsa
7357 utilities to handle the new format: note no releases ever handled public
7358 keys so we should be OK.
7360 The primary motivation for this change is to avoid the same fiasco
7361 that dogs private keys: there are several incompatible private key
7362 formats some of which are standard and some OpenSSL specific and
7363 require various evil hacks to allow partial transparent handling and
7364 even then it doesn't work with DER formats. Given the option anything
7365 other than PKCS#8 should be dumped: but the other formats have to
7366 stay in the name of compatibility.
7368 With public keys and the benefit of hindsight one standard format
7369 is used which works with EVP_PKEY, RSA or DSA structures: though
7370 it clearly returns an error if you try to read the wrong kind of key.
7372 Added a -pubkey option to the 'x509' utility to output the public key.
7373 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7374 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7375 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7376 that do the same as the EVP_PKEY_assign_*() except they up the
7377 reference count of the added key (they don't "swallow" the
7381 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7382 CRLs would fail if the file contained no certificates or no CRLs:
7383 added a new function to read in both types and return the number
7384 read: this means that if none are read it will be an error. The
7385 DER versions of the certificate and CRL reader would always fail
7386 because it isn't possible to mix certificates and CRLs in DER format
7387 without choking one or the other routine. Changed this to just read
7388 a certificate: this is the best we can do. Also modified the code
7389 in apps/verify.c to take notice of return codes: it was previously
7390 attempting to read in certificates from NULL pointers and ignoring
7391 any errors: this is one reason why the cert and CRL reader seemed
7392 to work. It doesn't check return codes from the default certificate
7393 routines: these may well fail if the certificates aren't installed.
7396 *) Code to support otherName option in GeneralName.
7399 *) First update to verify code. Change the verify utility
7400 so it warns if it is passed a self signed certificate:
7401 for consistency with the normal behaviour. X509_verify
7402 has been modified to it will now verify a self signed
7403 certificate if *exactly* the same certificate appears
7404 in the store: it was previously impossible to trust a
7405 single self signed certificate. This means that:
7406 openssl verify ss.pem
7407 now gives a warning about a self signed certificate but
7408 openssl verify -CAfile ss.pem ss.pem
7412 *) For servers, store verify_result in SSL_SESSION data structure
7413 (and add it to external session representation).
7414 This is needed when client certificate verifications fails,
7415 but an application-provided verification callback (set by
7416 SSL_CTX_set_cert_verify_callback) allows accepting the session
7417 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7418 but returns 1): When the session is reused, we have to set
7419 ssl->verify_result to the appropriate error code to avoid
7421 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7423 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7424 case in PKCS7_dataInit() where the signed PKCS7 structure
7425 didn't contain any existing data because it was being created.
7426 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7428 *) Add a salt to the key derivation routines in enc.c. This
7429 forms the first 8 bytes of the encrypted file. Also add a
7430 -S option to allow a salt to be input on the command line.
7433 *) New function X509_cmp(). Oddly enough there wasn't a function
7434 to compare two certificates. We do this by working out the SHA1
7435 hash and comparing that. X509_cmp() will be needed by the trust
7439 *) SSL_get1_session() is like SSL_get_session(), but increments
7440 the reference count in the SSL_SESSION returned.
7441 [Geoff Thorpe <geoff@eu.c2.net>]
7443 *) Fix for 'req': it was adding a null to request attributes.
7444 Also change the X509_LOOKUP and X509_INFO code to handle
7445 certificate auxiliary information.
7448 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7452 *) Add the possibility to add extra information to the memory leak
7453 detecting output, to form tracebacks, showing from where each
7454 allocation was originated: CRYPTO_push_info("constant string") adds
7455 the string plus current file name and line number to a per-thread
7456 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7457 is like calling CYRPTO_pop_info() until the stack is empty.
7458 Also updated memory leak detection code to be multi-thread-safe.
7461 *) Add options -text and -noout to pkcs7 utility and delete the
7462 encryption options which never did anything. Update docs.
7465 *) Add options to some of the utilities to allow the pass phrase
7466 to be included on either the command line (not recommended on
7467 OSes like Unix) or read from the environment. Update the
7468 manpages and fix a few bugs.
7471 *) Add a few manpages for some of the openssl commands.
7474 *) Fix the -revoke option in ca. It was freeing up memory twice,
7475 leaking and not finding already revoked certificates.
7478 *) Extensive changes to support certificate auxiliary information.
7479 This involves the use of X509_CERT_AUX structure and X509_AUX
7480 functions. An X509_AUX function such as PEM_read_X509_AUX()
7481 can still read in a certificate file in the usual way but it
7482 will also read in any additional "auxiliary information". By
7483 doing things this way a fair degree of compatibility can be
7484 retained: existing certificates can have this information added
7485 using the new 'x509' options.
7487 Current auxiliary information includes an "alias" and some trust
7488 settings. The trust settings will ultimately be used in enhanced
7489 certificate chain verification routines: currently a certificate
7490 can only be trusted if it is self signed and then it is trusted
7494 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7495 The problem was that one of the replacement routines had not been working
7496 since SSLeay releases. For now the offending routine has been replaced
7497 with non-optimised assembler. Even so, this now gives around 95%
7498 performance improvement for 1024 bit RSA signs.
7501 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7502 handling. Most clients have the effective key size in bits equal to
7503 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7504 A few however don't do this and instead use the size of the decrypted key
7505 to determine the RC2 key length and the AlgorithmIdentifier to determine
7506 the effective key length. In this case the effective key length can still
7507 be 40 bits but the key length can be 168 bits for example. This is fixed
7508 by manually forcing an RC2 key into the EVP_PKEY structure because the
7509 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7510 the key length and effective key length are equal.
7513 *) Add a bunch of functions that should simplify the creation of
7514 X509_NAME structures. Now you should be able to do:
7515 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7516 and have it automatically work out the correct field type and fill in
7517 the structures. The more adventurous can try:
7518 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7519 and it will (hopefully) work out the correct multibyte encoding.
7522 *) Change the 'req' utility to use the new field handling and multibyte
7523 copy routines. Before the DN field creation was handled in an ad hoc
7524 way in req, ca, and x509 which was rather broken and didn't support
7525 BMPStrings or UTF8Strings. Since some software doesn't implement
7526 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7527 using the dirstring_type option. See the new comment in the default
7528 openssl.cnf for more info.
7531 *) Make crypto/rand/md_rand.c more robust:
7532 - Assure unique random numbers after fork().
7533 - Make sure that concurrent threads access the global counter and
7534 md serializably so that we never lose entropy in them
7535 or use exactly the same state in multiple threads.
7536 Access to the large state is not always serializable because
7537 the additional locking could be a performance killer, and
7538 md should be large enough anyway.
7541 *) New file apps/app_rand.c with commonly needed functionality
7542 for handling the random seed file.
7544 Use the random seed file in some applications that previously did not:
7546 dsaparam -genkey (which also ignored its '-rand' option),
7549 x509 (when signing).
7550 Except on systems with /dev/urandom, it is crucial to have a random
7551 seed file at least for key creation, DSA signing, and for DH exchanges;
7552 for RSA signatures we could do without one.
7554 gendh and gendsa (unlike genrsa) used to read only the first byte
7555 of each file listed in the '-rand' option. The function as previously
7556 found in genrsa is now in app_rand.c and is used by all programs
7557 that support '-rand'.
7560 *) In RAND_write_file, use mode 0600 for creating files;
7561 don't just chmod when it may be too late.
7564 *) Report an error from X509_STORE_load_locations
7565 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7568 *) New function ASN1_mbstring_copy() this copies a string in either
7569 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7570 into an ASN1_STRING type. A mask of permissible types is passed
7571 and it chooses the "minimal" type to use or an error if not type
7575 *) Add function equivalents to the various macros in asn1.h. The old
7576 macros are retained with an M_ prefix. Code inside the library can
7577 use the M_ macros. External code (including the openssl utility)
7578 should *NOT* in order to be "shared library friendly".
7581 *) Add various functions that can check a certificate's extensions
7582 to see if it usable for various purposes such as SSL client,
7583 server or S/MIME and CAs of these types. This is currently
7584 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7585 verification. Also added a -purpose flag to x509 utility to
7586 print out all the purposes.
7589 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7593 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7594 for, obtain and decode and extension and obtain its critical flag.
7595 This allows all the necessary extension code to be handled in a
7596 single function call.
7599 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7600 platforms. See crypto/rc4/rc4_enc.c for further details.
7603 *) New -noout option to asn1parse. This causes no output to be produced
7604 its main use is when combined with -strparse and -out to extract data
7605 from a file (which may not be in ASN.1 format).
7608 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7609 when producing the local key id.
7610 [Richard Levitte <levitte@stacken.kth.se>]
7612 *) New option -dhparam in s_server. This allows a DH parameter file to be
7613 stated explicitly. If it is not stated then it tries the first server
7614 certificate file. The previous behaviour hard coded the filename
7618 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7619 a public key to be input or output. For example:
7620 openssl rsa -in key.pem -pubout -out pubkey.pem
7621 Also added necessary DSA public key functions to handle this.
7624 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7625 in the message. This was handled by allowing
7626 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7627 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7629 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7630 to the end of the strings whereas this didn't. This would cause problems
7631 if strings read with d2i_ASN1_bytes() were later modified.
7632 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7634 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7635 data and it contains EOF it will end up returning an error. This is
7636 caused by input 46 bytes long. The cause is due to the way base64
7637 BIOs find the start of base64 encoded data. They do this by trying a
7638 trial decode on each line until they find one that works. When they
7639 do a flag is set and it starts again knowing it can pass all the
7640 data directly through the decoder. Unfortunately it doesn't reset
7641 the context it uses. This means that if EOF is reached an attempt
7642 is made to pass two EOFs through the context and this causes the
7643 resulting error. This can also cause other problems as well. As is
7644 usual with these problems it takes *ages* to find and the fix is
7645 trivial: move one line.
7646 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7648 *) Ugly workaround to get s_client and s_server working under Windows. The
7649 old code wouldn't work because it needed to select() on sockets and the
7650 tty (for keypresses and to see if data could be written). Win32 only
7651 supports select() on sockets so we select() with a 1s timeout on the
7652 sockets and then see if any characters are waiting to be read, if none
7653 are present then we retry, we also assume we can always write data to
7654 the tty. This isn't nice because the code then blocks until we've
7655 received a complete line of data and it is effectively polling the
7656 keyboard at 1s intervals: however it's quite a bit better than not
7657 working at all :-) A dedicated Windows application might handle this
7658 with an event loop for example.
7661 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7662 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7663 will be called when RSA_sign() and RSA_verify() are used. This is useful
7664 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7665 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7666 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7667 This necessitated the support of an extra signature type NID_md5_sha1
7668 for SSL signatures and modifications to the SSL library to use it instead
7669 of calling RSA_public_decrypt() and RSA_private_encrypt().
7672 *) Add new -verify -CAfile and -CApath options to the crl program, these
7673 will lookup a CRL issuers certificate and verify the signature in a
7674 similar way to the verify program. Tidy up the crl program so it
7675 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7676 less strict. It will now permit CRL extensions even if it is not
7677 a V2 CRL: this will allow it to tolerate some broken CRLs.
7680 *) Initialize all non-automatic variables each time one of the openssl
7681 sub-programs is started (this is necessary as they may be started
7682 multiple times from the "OpenSSL>" prompt).
7683 [Lennart Bang, Bodo Moeller]
7685 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7686 removing all other RSA functionality (this is what NO_RSA does). This
7687 is so (for example) those in the US can disable those operations covered
7688 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7692 *) Non-copying interface to BIO pairs.
7693 (still largely untested)
7696 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7697 ASCII string. This was handled independently in various places before.
7700 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7701 UTF8 strings a character at a time.
7704 *) Use client_version from client hello to select the protocol
7705 (s23_srvr.c) and for RSA client key exchange verification
7706 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7709 *) Add various utility functions to handle SPKACs, these were previously
7710 handled by poking round in the structure internals. Added new function
7711 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7712 print, verify and generate SPKACs. Based on an original idea from
7713 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7716 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7719 *) Allow the config file extension section to be overwritten on the
7720 command line. Based on an original idea from Massimiliano Pala
7721 <madwolf@comune.modena.it>. The new option is called -extensions
7722 and can be applied to ca, req and x509. Also -reqexts to override
7723 the request extensions in req and -crlexts to override the crl extensions
7727 *) Add new feature to the SPKAC handling in ca. Now you can include
7728 the same field multiple times by preceding it by "XXXX." for example:
7731 this is the same syntax as used in the req config file.
7734 *) Allow certificate extensions to be added to certificate requests. These
7735 are specified in a 'req_extensions' option of the req section of the
7736 config file. They can be printed out with the -text option to req but
7737 are otherwise ignored at present.
7740 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7741 data read consists of only the final block it would not decrypted because
7742 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7743 A misplaced 'break' also meant the decrypted final block might not be
7744 copied until the next read.
7747 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7748 a few extra parameters to the DH structure: these will be useful if
7749 for example we want the value of 'q' or implement X9.42 DH.
7752 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7753 provides hooks that allow the default DSA functions or functions on a
7754 "per key" basis to be replaced. This allows hardware acceleration and
7755 hardware key storage to be handled without major modification to the
7756 library. Also added low level modexp hooks and CRYPTO_EX structure and
7757 associated functions.
7760 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7761 as "read only": it can't be written to and the buffer it points to will
7762 not be freed. Reading from a read only BIO is much more efficient than
7763 a normal memory BIO. This was added because there are several times when
7764 an area of memory needs to be read from a BIO. The previous method was
7765 to create a memory BIO and write the data to it, this results in two
7766 copies of the data and an O(n^2) reading algorithm. There is a new
7767 function BIO_new_mem_buf() which creates a read only memory BIO from
7768 an area of memory. Also modified the PKCS#7 routines to use read only
7772 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7773 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7774 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7775 but a retry condition occured while trying to read the rest.
7778 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7779 NID_pkcs7_encrypted by default: this was wrong since this should almost
7780 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7781 the encrypted data type: this is a more sensible place to put it and it
7782 allows the PKCS#12 code to be tidied up that duplicated this
7786 *) Changed obj_dat.pl script so it takes its input and output files on
7787 the command line. This should avoid shell escape redirection problems
7791 *) Initial support for certificate extension requests, these are included
7792 in things like Xenroll certificate requests. Included functions to allow
7793 extensions to be obtained and added.
7796 *) -crlf option to s_client and s_server for sending newlines as
7797 CRLF (as required by many protocols).
7800 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7802 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7803 [Ralf S. Engelschall]
7805 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7806 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7808 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7812 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7813 DH parameters/keys (q is lost during that conversion, but the resulting
7814 DH parameters contain its length).
7816 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7817 much faster than DH_generate_parameters (which creates parameters
7818 where p = 2*q + 1), and also the smaller q makes DH computations
7819 much more efficient (160-bit exponentiation instead of 1024-bit
7820 exponentiation); so this provides a convenient way to support DHE
7821 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7822 utter importance to use
7823 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7825 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7826 when such DH parameters are used, because otherwise small subgroup
7827 attacks may become possible!
7830 *) Avoid memory leak in i2d_DHparams.
7833 *) Allow the -k option to be used more than once in the enc program:
7834 this allows the same encrypted message to be read by multiple recipients.
7837 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7838 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7839 it will always use the numerical form of the OID, even if it has a short
7843 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7844 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7845 otherwise bn_mod_exp was called. In the case of hardware keys for example
7846 no private key components need be present and it might store extra data
7847 in the RSA structure, which cannot be accessed from bn_mod_exp.
7848 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7849 private key operations.
7852 *) Added support for SPARC Linux.
7855 *) pem_password_cb function type incompatibly changed from
7856 typedef int pem_password_cb(char *buf, int size, int rwflag);
7858 ....(char *buf, int size, int rwflag, void *userdata);
7859 so that applications can pass data to their callbacks:
7860 The PEM[_ASN1]_{read,write}... functions and macros now take an
7861 additional void * argument, which is just handed through whenever
7862 the password callback is called.
7863 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7865 New function SSL_CTX_set_default_passwd_cb_userdata.
7867 Compatibility note: As many C implementations push function arguments
7868 onto the stack in reverse order, the new library version is likely to
7869 interoperate with programs that have been compiled with the old
7870 pem_password_cb definition (PEM_whatever takes some data that
7871 happens to be on the stack as its last argument, and the callback
7872 just ignores this garbage); but there is no guarantee whatsoever that
7875 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7876 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7877 problems not only on Windows, but also on some Unix platforms.
7878 To avoid problematic command lines, these definitions are now in an
7879 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7880 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7883 *) MIPS III/IV assembler module is reimplemented.
7886 *) More DES library cleanups: remove references to srand/rand and
7887 delete an unused file.
7890 *) Add support for the the free Netwide assembler (NASM) under Win32,
7891 since not many people have MASM (ml) and it can be hard to obtain.
7892 This is currently experimental but it seems to work OK and pass all
7893 the tests. Check out INSTALL.W32 for info.
7896 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7897 without temporary keys kept an extra copy of the server key,
7898 and connections with temporary keys did not free everything in case
7902 *) New function RSA_check_key and new openssl rsa option -check
7903 for verifying the consistency of RSA keys.
7904 [Ulf Moeller, Bodo Moeller]
7906 *) Various changes to make Win32 compile work:
7907 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7908 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7909 comparison" warnings.
7910 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7913 *) Add a debugging option to PKCS#5 v2 key generation function: when
7914 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7915 derived keys are printed to stderr.
7918 *) Copy the flags in ASN1_STRING_dup().
7919 [Roman E. Pavlov <pre@mo.msk.ru>]
7921 *) The x509 application mishandled signing requests containing DSA
7922 keys when the signing key was also DSA and the parameters didn't match.
7924 It was supposed to omit the parameters when they matched the signing key:
7925 the verifying software was then supposed to automatically use the CA's
7926 parameters if they were absent from the end user certificate.
7928 Omitting parameters is no longer recommended. The test was also
7929 the wrong way round! This was probably due to unusual behaviour in
7930 EVP_cmp_parameters() which returns 1 if the parameters match.
7931 This meant that parameters were omitted when they *didn't* match and
7932 the certificate was useless. Certificates signed with 'ca' didn't have
7934 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7936 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7937 The interface is as follows:
7938 Applications can use
7939 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7940 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7941 "off" is now the default.
7942 The library internally uses
7943 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7944 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7945 to disable memory-checking temporarily.
7947 Some inconsistent states that previously were possible (and were
7948 even the default) are now avoided.
7950 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7951 with each memory chunk allocated; this is occasionally more helpful
7952 than just having a counter.
7954 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7956 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7960 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7961 which largely parallels "options", but is for changing API behaviour,
7962 whereas "options" are about protocol behaviour.
7963 Initial "mode" flags are:
7965 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7966 a single record has been written.
7967 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7968 retries use the same buffer location.
7969 (But all of the contents must be
7973 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7976 *) Fix problems with no-hmac etc.
7977 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7979 *) New functions RSA_get_default_method(), RSA_set_method() and
7980 RSA_get_method(). These allows replacement of RSA_METHODs without having
7981 to mess around with the internals of an RSA structure.
7984 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7985 Also really enable memory leak checks in openssl.c and in some
7987 [Chad C. Mulligan, Bodo Moeller]
7989 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7990 up the length of negative integers. This has now been simplified to just
7991 store the length when it is first determined and use it later, rather
7992 than trying to keep track of where data is copied and updating it to
7994 [Steve Henson, reported by Brien Wheeler
7995 <bwheeler@authentica-security.com>]
7997 *) Add a new function PKCS7_signatureVerify. This allows the verification
7998 of a PKCS#7 signature but with the signing certificate passed to the
7999 function itself. This contrasts with PKCS7_dataVerify which assumes the
8000 certificate is present in the PKCS#7 structure. This isn't always the
8001 case: certificates can be omitted from a PKCS#7 structure and be
8002 distributed by "out of band" means (such as a certificate database).
8005 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8006 function prototypes in pem.h, also change util/mkdef.pl to add the
8007 necessary function names.
8010 *) mk1mf.pl (used by Windows builds) did not properly read the
8011 options set by Configure in the top level Makefile, and Configure
8012 was not even able to write more than one option correctly.
8013 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8016 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8017 file to be loaded from a BIO or FILE pointer. The BIO version will
8018 for example allow memory BIOs to contain config info.
8021 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8022 Whoever hopes to achieve shared-library compatibility across versions
8023 must use this, not the compile-time macro.
8024 (Exercise 0.9.4: Which is the minimum library version required by
8026 Note: All this applies only to multi-threaded programs, others don't
8030 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8031 through a BIO pair triggered the default case, i.e.
8032 SSLerr(...,SSL_R_UNKNOWN_STATE).
8035 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8036 can use the SSL library even if none of the specific BIOs is
8040 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8041 for the encoded length.
8042 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8044 *) Add initial documentation of the X509V3 functions.
8047 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8048 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8049 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8050 secure PKCS#8 private key format with a high iteration count.
8053 *) Fix determination of Perl interpreter: A perl or perl5
8054 _directory_ in $PATH was also accepted as the interpreter.
8055 [Ralf S. Engelschall]
8057 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8058 wrong with it but it was very old and did things like calling
8059 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8063 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8064 to use the new extension code.
8067 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8068 with macros. This should make it easier to change their form, add extra
8069 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8073 *) Add to configuration table a new entry that can specify an alternative
8074 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8075 according to Mark Crispin <MRC@Panda.COM>.
8079 *) DES CBC did not update the IV. Weird.
8082 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8083 Changing the behaviour of the former might break existing programs --
8084 where IV updating is needed, des_ncbc_encrypt can be used.
8087 *) When bntest is run from "make test" it drives bc to check its
8088 calculations, as well as internally checking them. If an internal check
8089 fails, it needs to cause bc to give a non-zero result or make test carries
8090 on without noticing the failure. Fixed.
8093 *) DES library cleanups.
8096 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8097 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8098 ciphers. NOTE: although the key derivation function has been verified
8099 against some published test vectors it has not been extensively tested
8100 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8104 *) Instead of "mkdir -p", which is not fully portable, use new
8105 Perl script "util/mkdir-p.pl".
8108 *) Rewrite the way password based encryption (PBE) is handled. It used to
8109 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8110 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8111 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8112 the 'parameter' field of the AlgorithmIdentifier is passed to the
8113 underlying key generation function so it must do its own ASN1 parsing.
8114 This has also changed the EVP_PBE_CipherInit() function which now has a
8115 'parameter' argument instead of literal salt and iteration count values
8116 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8119 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8120 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8121 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8122 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8123 value was just used as a "magic string" and not used directly its
8124 value doesn't matter.
8127 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8131 *) "linux-sparc64" configuration (ultrapenguin).
8132 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8133 "linux-sparc" configuration.
8134 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8136 *) config now generates no-xxx options for missing ciphers.
8139 *) Support the EBCDIC character set (work in progress).
8140 File ebcdic.c not yet included because it has a different license.
8141 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8143 *) Support BS2000/OSD-POSIX.
8144 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8146 *) Make callbacks for key generation use void * instead of char *.
8149 *) Make S/MIME samples compile (not yet tested).
8152 *) Additional typesafe stacks.
8155 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8159 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8161 *) New configuration variant "sco5-gcc".
8163 *) Updated some demos.
8164 [Sean O Riordain, Wade Scholine]
8166 *) Add missing BIO_free at exit of pkcs12 application.
8169 *) Fix memory leak in conf.c.
8172 *) Updates for Win32 to assembler version of MD5.
8175 *) Set #! path to perl in apps/der_chop to where we found it
8176 instead of using a fixed path.
8179 *) SHA library changes for irix64-mips4-cc.
8182 *) Improvements for VMS support.
8186 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8188 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8189 This also avoids the problems with SC4.2 and unpatched SC5.
8190 [Andy Polyakov <appro@fy.chalmers.se>]
8192 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8193 These are required because of the typesafe stack would otherwise break
8194 existing code. If old code used a structure member which used to be STACK
8195 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8196 sk_num or sk_value it would produce an error because the num, data members
8197 are not present in STACK_OF. Now it just produces a warning. sk_set
8198 replaces the old method of assigning a value to sk_value
8199 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8200 that does this will no longer work (and should use sk_set instead) but
8201 this could be regarded as a "questionable" behaviour anyway.
8204 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8205 correctly handle encrypted S/MIME data.
8208 *) Change type of various DES function arguments from des_cblock
8209 (which means, in function argument declarations, pointer to char)
8210 to des_cblock * (meaning pointer to array with 8 char elements),
8211 which allows the compiler to do more typechecking; it was like
8212 that back in SSLeay, but with lots of ugly casts.
8214 Introduce new type const_des_cblock.
8217 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8218 problems: find RecipientInfo structure that matches recipient certificate
8219 and initialise the ASN1 structures properly based on passed cipher.
8222 *) Belatedly make the BN tests actually check the results.
8225 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8226 to and from BNs: it was completely broken. New compilation option
8227 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8228 key elements as negative integers.
8231 *) Reorganize and speed up MD5.
8232 [Andy Polyakov <appro@fy.chalmers.se>]
8235 [Richard Levitte <richard@levitte.org>]
8237 *) New option -out to asn1parse to allow the parsed structure to be
8238 output to a file. This is most useful when combined with the -strparse
8239 option to examine the output of things like OCTET STRINGS.
8242 *) Make SSL library a little more fool-proof by not requiring any longer
8243 that SSL_set_{accept,connect}_state be called before
8244 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8245 in many applications because usually everything *appeared* to work as
8246 intended anyway -- now it really works as intended).
8249 *) Move openssl.cnf out of lib/.
8252 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8253 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8254 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8255 [Ralf S. Engelschall]
8257 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8258 handle PKCS#7 enveloped data properly.
8259 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8261 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8262 copying pointers. The cert_st handling is changed by this in
8263 various ways (and thus what used to be known as ctx->default_cert
8264 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8265 any longer when s->cert does not give us what we need).
8266 ssl_cert_instantiate becomes obsolete by this change.
8267 As soon as we've got the new code right (possibly it already is?),
8268 we have solved a couple of bugs of the earlier code where s->cert
8269 was used as if it could not have been shared with other SSL structures.
8271 Note that using the SSL API in certain dirty ways now will result
8272 in different behaviour than observed with earlier library versions:
8273 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8274 does not influence s as it used to.
8276 In order to clean up things more thoroughly, inside SSL_SESSION
8277 we don't use CERT any longer, but a new structure SESS_CERT
8278 that holds per-session data (if available); currently, this is
8279 the peer's certificate chain and, for clients, the server's certificate
8280 and temporary key. CERT holds only those values that can have
8281 meaningful defaults in an SSL_CTX.
8284 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8285 from the internal representation. Various PKCS#7 fixes: remove some
8286 evil casts and set the enc_dig_alg field properly based on the signing
8290 *) Allow PKCS#12 password to be set from the command line or the
8291 environment. Let 'ca' get its config file name from the environment
8292 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8296 *) Allow certificate policies extension to use an IA5STRING for the
8297 organization field. This is contrary to the PKIX definition but
8298 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8302 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8303 without disallowing inline assembler and the like for non-pedantic builds.
8306 *) Support Borland C++ builder.
8307 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8312 *) SHA-1 cleanups and performance enhancements.
8313 [Andy Polyakov <appro@fy.chalmers.se>]
8315 *) Sparc v8plus assembler for the bignum library.
8316 [Andy Polyakov <appro@fy.chalmers.se>]
8318 *) Accept any -xxx and +xxx compiler options in Configure.
8321 *) Update HPUX configuration.
8324 *) Add missing sk_<type>_unshift() function to safestack.h
8325 [Ralf S. Engelschall]
8327 *) New function SSL_CTX_use_certificate_chain_file that sets the
8328 "extra_cert"s in addition to the certificate. (This makes sense
8329 only for "PEM" format files, as chains as a whole are not
8333 *) Support verify_depth from the SSL API.
8334 x509_vfy.c had what can be considered an off-by-one-error:
8335 Its depth (which was not part of the external interface)
8336 was actually counting the number of certificates in a chain;
8337 now it really counts the depth.
8340 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8341 instead of X509err, which often resulted in confusing error
8342 messages since the error codes are not globally unique
8343 (e.g. an alleged error in ssl3_accept when a certificate
8344 didn't match the private key).
8346 *) New function SSL_CTX_set_session_id_context that allows to set a default
8347 value (so that you don't need SSL_set_session_id_context for each
8348 connection using the SSL_CTX).
8351 *) OAEP decoding bug fix.
8354 *) Support INSTALL_PREFIX for package builders, as proposed by
8358 *) New Configure options "threads" and "no-threads". For systems
8359 where the proper compiler options are known (currently Solaris
8360 and Linux), "threads" is the default.
8363 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8366 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8367 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8368 such as /usr/local/bin.
8371 *) "make linux-shared" to build shared libraries.
8372 [Niels Poppe <niels@netbox.org>]
8374 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8377 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8378 extension adding in x509 utility.
8381 *) Remove NOPROTO sections and error code comments.
8384 *) Partial rewrite of the DEF file generator to now parse the ANSI
8388 *) New Configure options --prefix=DIR and --openssldir=DIR.
8391 *) Complete rewrite of the error code script(s). It is all now handled
8392 by one script at the top level which handles error code gathering,
8393 header rewriting and C source file generation. It should be much better
8394 than the old method: it now uses a modified version of Ulf's parser to
8395 read the ANSI prototypes in all header files (thus the old K&R definitions
8396 aren't needed for error creation any more) and do a better job of
8397 translating function codes into names. The old 'ASN1 error code imbedded
8398 in a comment' is no longer necessary and it doesn't use .err files which
8399 have now been deleted. Also the error code call doesn't have to appear all
8400 on one line (which resulted in some large lines...).
8403 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8406 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8407 0 (which usually indicates a closed connection), but continue reading.
8410 *) Fix some race conditions.
8413 *) Add support for CRL distribution points extension. Add Certificate
8414 Policies and CRL distribution points documentation.
8417 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8420 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8421 8 of keying material. Merlin has also confirmed interop with this fix
8422 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8423 [Merlin Hughes <merlin@baltimore.ie>]
8425 *) Fix lots of warnings.
8426 [Richard Levitte <levitte@stacken.kth.se>]
8428 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8429 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8430 [Richard Levitte <levitte@stacken.kth.se>]
8432 *) Fix problems with sizeof(long) == 8.
8433 [Andy Polyakov <appro@fy.chalmers.se>]
8435 *) Change functions to ANSI C.
8438 *) Fix typos in error codes.
8439 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8441 *) Remove defunct assembler files from Configure.
8444 *) SPARC v8 assembler BIGNUM implementation.
8445 [Andy Polyakov <appro@fy.chalmers.se>]
8447 *) Support for Certificate Policies extension: both print and set.
8448 Various additions to support the r2i method this uses.
8451 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8452 return a const string when you are expecting an allocated buffer.
8455 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8456 types DirectoryString and DisplayText.
8459 *) Add code to allow r2i extensions to access the configuration database,
8460 add an LHASH database driver and add several ctx helper functions.
8463 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8464 fail when they extended the size of a BIGNUM.
8467 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8468 support typesafe stack.
8471 *) Fix typo in SSL_[gs]et_options().
8472 [Nils Frostberg <nils@medcom.se>]
8474 *) Delete various functions and files that belonged to the (now obsolete)
8475 old X509V3 handling code.
8478 *) New Configure option "rsaref".
8481 *) Don't auto-generate pem.h.
8484 *) Introduce type-safe ASN.1 SETs.
8487 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8488 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8490 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8491 that links with OpenSSL (well at least cause lots of warnings), but fear
8492 not: the conversion is trivial, and it eliminates loads of evil casts. A
8493 few STACKed things have been converted already. Feel free to convert more.
8494 In the fullness of time, I'll do away with the STACK type altogether.
8497 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8498 specified in <certfile> by updating the entry in the index.txt file.
8499 This way one no longer has to edit the index.txt file manually for
8500 revoking a certificate. The -revoke option does the gory details now.
8501 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8503 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8504 `-text' option at all and this way the `-noout -text' combination was
8505 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8506 [Ralf S. Engelschall]
8508 *) Make sure a corresponding plain text error message exists for the
8509 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8510 verify callback function determined that a certificate was revoked.
8511 [Ralf S. Engelschall]
8513 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8514 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8515 all available cipers including rc5, which was forgotten until now.
8516 In order to let the testing shell script know which algorithms
8517 are available, a new (up to now undocumented) command
8518 "openssl list-cipher-commands" is used.
8521 *) Bugfix: s_client occasionally would sleep in select() when
8522 it should have checked SSL_pending() first.
8525 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8526 the raw DSA values prior to ASN.1 encoding.
8529 *) Tweaks to Configure
8530 [Niels Poppe <niels@netbox.org>]
8532 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8536 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8539 *) New config option to avoid instructions that are illegal on the 80386.
8540 The default code is faster, but requires at least a 486.
8543 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8544 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8545 same as SSL2_VERSION anyway.
8548 *) New "-showcerts" option for s_client.
8551 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8552 application. Various cleanups and fixes.
8555 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8556 modify error routines to work internally. Add error codes and PBE init
8557 to library startup routines.
8560 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8561 packing functions to asn1 and evp. Changed function names and error
8562 codes along the way.
8565 *) PKCS12 integration: and so it begins... First of several patches to
8566 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8567 objects to objects.h
8570 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8571 and display support for Thawte strong extranet extension.
8574 *) Add LinuxPPC support.
8575 [Jeff Dubrule <igor@pobox.org>]
8577 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8578 bn_div_words in alpha.s.
8579 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8581 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8582 OAEP isn't supported when OpenSSL is built with RSAref.
8583 [Ulf Moeller <ulf@fitug.de>]
8585 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8586 so they no longer are missing under -DNOPROTO.
8587 [Soren S. Jorvang <soren@t.dk>]
8590 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8592 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8593 doesn't work when the session is reused. Coming soon!
8596 *) Fix a security hole, that allows sessions to be reused in the wrong
8597 context thus bypassing client cert protection! All software that uses
8598 client certs and session caches in multiple contexts NEEDS PATCHING to
8599 allow session reuse! A fuller solution is in the works.
8600 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8602 *) Some more source tree cleanups (removed obsolete files
8603 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8604 permission on "config" script to be executable) and a fix for the INSTALL
8606 [Ulf Moeller <ulf@fitug.de>]
8608 *) Remove some legacy and erroneous uses of malloc, free instead of
8610 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8612 *) Make rsa_oaep_test return non-zero on error.
8613 [Ulf Moeller <ulf@fitug.de>]
8615 *) Add support for native Solaris shared libraries. Configure
8616 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8617 if someone would make that last step automatic.
8618 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8620 *) ctx_size was not built with the right compiler during "make links". Fixed.
8623 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8624 except NULL ciphers". This means the default cipher list will no longer
8625 enable NULL ciphers. They need to be specifically enabled e.g. with
8626 the string "DEFAULT:eNULL".
8629 *) Fix to RSA private encryption routines: if p < q then it would
8630 occasionally produce an invalid result. This will only happen with
8631 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8634 *) Be less restrictive and allow also `perl util/perlpath.pl
8635 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8636 because this way one can also use an interpreter named `perl5' (which is
8637 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8638 installed as `perl').
8639 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8641 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8642 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8644 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8645 advapi32.lib to Win32 build and change the pem test comparision
8646 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8647 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8648 and crypto/des/ede_cbcm_enc.c.
8651 *) DES quad checksum was broken on big-endian architectures. Fixed.
8654 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8655 Win32 test batch file so it (might) work again. The Win32 test batch file
8656 is horrible: I feel ill....
8659 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8660 in e_os.h. Audit of header files to check ANSI and non ANSI
8661 sections: 10 functions were absent from non ANSI section and not exported
8662 from Windows DLLs. Fixed up libeay.num for new functions.
8665 *) Make `openssl version' output lines consistent.
8666 [Ralf S. Engelschall]
8668 *) Fix Win32 symbol export lists for BIO functions: Added
8669 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8670 to ms/libeay{16,32}.def.
8671 [Ralf S. Engelschall]
8673 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8674 fine under Unix and passes some trivial tests I've now added. But the
8675 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8676 added to make sure no one expects that this stuff really works in the
8677 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8678 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8680 [Ralf S. Engelschall]
8682 *) Fix the generation of two part addresses in perl.
8683 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8685 *) Add config entry for Linux on MIPS.
8686 [John Tobey <jtobey@channel1.com>]
8688 *) Make links whenever Configure is run, unless we are on Windoze.
8691 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8692 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8696 *) Add a useful kludge to allow package maintainers to specify compiler and
8697 other platforms details on the command line without having to patch the
8698 Configure script everytime: One now can use ``perl Configure
8699 <id>:<details>'', i.e. platform ids are allowed to have details appended
8700 to them (seperated by colons). This is treated as there would be a static
8701 pre-configured entry in Configure's %table under key <id> with value
8702 <details> and ``perl Configure <id>'' is called. So, when you want to
8703 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8704 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8705 now, which overrides the FreeBSD-elf entry on-the-fly.
8706 [Ralf S. Engelschall]
8708 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8711 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8712 on the `perl Configure ...' command line. This way one can compile
8713 OpenSSL libraries with Position Independent Code (PIC) which is needed
8714 for linking it into DSOs.
8715 [Ralf S. Engelschall]
8717 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8721 *) Cleaned up the LICENSE document: The official contact for any license
8722 questions now is the OpenSSL core team under openssl-core@openssl.org.
8723 And add a paragraph about the dual-license situation to make sure people
8724 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8725 to the OpenSSL toolkit.
8726 [Ralf S. Engelschall]
8728 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8729 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8730 Additonally cleaned up the `make links' target: Remove unnecessary
8731 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8732 to speed processing and no longer clutter the display with confusing
8733 stuff. Instead only the actually done links are displayed.
8734 [Ralf S. Engelschall]
8736 *) Permit null encryption ciphersuites, used for authentication only. It used
8737 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8738 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8742 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8743 signed attributes when verifying signatures (this would break them),
8744 the detached data encoding was wrong and public keys obtained using
8745 X509_get_pubkey() weren't freed.
8748 *) Add text documentation for the BUFFER functions. Also added a work around
8749 to a Win95 console bug. This was triggered by the password read stuff: the
8750 last character typed gets carried over to the next fread(). If you were
8751 generating a new cert request using 'req' for example then the last
8752 character of the passphrase would be CR which would then enter the first
8756 *) Added the new `Includes OpenSSL Cryptography Software' button as
8757 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8758 button and can be used by applications based on OpenSSL to show the
8759 relationship to the OpenSSL project.
8760 [Ralf S. Engelschall]
8762 *) Remove confusing variables in function signatures in files
8763 ssl/ssl_lib.c and ssl/ssl.h.
8764 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8766 *) Don't install bss_file.c under PREFIX/include/
8767 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8769 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8770 functions that return function pointers and has support for NT specific
8771 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8772 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8773 unsigned to signed types: this was killing the Win32 compile.
8776 *) Add new certificate file to stack functions,
8777 SSL_add_dir_cert_subjects_to_stack() and
8778 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8779 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8780 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8781 This means that Apache-SSL and similar packages don't have to mess around
8782 to add as many CAs as they want to the preferred list.
8785 *) Experiment with doxygen documentation. Currently only partially applied to
8787 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8788 openssl.doxy as the configuration file.
8791 *) Get rid of remaining C++-style comments which strict C compilers hate.
8792 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8794 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8795 compiled in by default: it has problems with large keys.
8798 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8799 DH private keys and/or callback functions which directly correspond to
8800 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8801 is needed for applications which have to configure certificates on a
8802 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8804 For the RSA certificate situation is makes no difference, but
8805 for the DSA certificate situation this fixes the "no shared cipher"
8806 problem where the OpenSSL cipher selection procedure failed because the
8807 temporary keys were not overtaken from the context and the API provided
8808 no way to reconfigure them.
8809 The new functions now let applications reconfigure the stuff and they
8810 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8811 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8812 non-public-API function ssl_cert_instantiate() is used as a helper
8813 function and also to reduce code redundancy inside ssl_rsa.c.
8814 [Ralf S. Engelschall]
8816 *) Move s_server -dcert and -dkey options out of the undocumented feature
8817 area because they are useful for the DSA situation and should be
8818 recognized by the users.
8819 [Ralf S. Engelschall]
8821 *) Fix the cipher decision scheme for export ciphers: the export bits are
8822 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8823 SSL_EXP_MASK. So, the original variable has to be used instead of the
8824 already masked variable.
8825 [Richard Levitte <levitte@stacken.kth.se>]
8827 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8828 [Richard Levitte <levitte@stacken.kth.se>]
8830 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8831 from `int' to `unsigned int' because it's a length and initialized by
8832 EVP_DigestFinal() which expects an `unsigned int *'.
8833 [Richard Levitte <levitte@stacken.kth.se>]
8835 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8836 script. Instead use the usual Shell->Perl transition trick.
8837 [Ralf S. Engelschall]
8839 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8840 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8841 -noout -modulus' as it's already the case for `openssl rsa -noout
8842 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8843 currently the public key is printed (a decision which was already done by
8844 `openssl dsa -modulus' in the past) which serves a similar purpose.
8845 Additionally the NO_RSA no longer completely removes the whole -modulus
8846 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8848 [Ralf S. Engelschall]
8850 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8851 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8852 [Arne Ansper <arne@ats.cyber.ee>]
8854 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8855 to be added. Now both 'req' and 'ca' can use new objects defined in the
8859 *) Add cool BIO that does syslog (or event log on NT).
8860 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8862 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8863 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8864 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8865 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8868 *) Add preliminary config info for new extension code.
8871 *) Make RSA_NO_PADDING really use no padding.
8872 [Ulf Moeller <ulf@fitug.de>]
8874 *) Generate errors when private/public key check is done.
8877 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8878 for some CRL extensions and new objects added.
8881 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8882 key usage extension and fuller support for authority key id.
8885 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8886 padding method for RSA, which is recommended for new applications in PKCS
8887 #1 v2.0 (RFC 2437, October 1998).
8888 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8889 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8890 against Bleichbacher's attack on RSA.
8891 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8894 *) Updates to the new SSL compression code
8895 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8897 *) Fix so that the version number in the master secret, when passed
8898 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8899 (because the server will not accept higher), that the version number
8900 is 0x03,0x01, not 0x03,0x00
8901 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8903 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8904 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8905 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8908 *) Support for RAW extensions where an arbitrary extension can be
8909 created by including its DER encoding. See apps/openssl.cnf for
8913 *) Make sure latest Perl versions don't interpret some generated C array
8914 code as Perl array code in the crypto/err/err_genc.pl script.
8915 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8917 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8918 not many people have the assembler. Various Win32 compilation fixes and
8919 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8923 *) Modify configure script 'Configure' to automatically create crypto/date.h
8924 file under Win32 and also build pem.h from pem.org. New script
8925 util/mkfiles.pl to create the MINFO file on environments that can't do a
8926 'make files': perl util/mkfiles.pl >MINFO should work.
8929 *) Major rework of DES function declarations, in the pursuit of correctness
8930 and purity. As a result, many evil casts evaporated, and some weirdness,
8931 too. You may find this causes warnings in your code. Zapping your evil
8932 casts will probably fix them. Mostly.
8935 *) Fix for a typo in asn1.h. Bug fix to object creation script
8936 obj_dat.pl. It considered a zero in an object definition to mean
8937 "end of object": none of the objects in objects.h have any zeros
8938 so it wasn't spotted.
8939 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8941 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8942 Masking (CBCM). In the absence of test vectors, the best I have been able
8943 to do is check that the decrypt undoes the encrypt, so far. Send me test
8944 vectors if you have them.
8947 *) Correct calculation of key length for export ciphers (too much space was
8948 allocated for null ciphers). This has not been tested!
8951 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8952 message is now correct (it understands "crypto" and "ssl" on its
8953 command line). There is also now an "update" option. This will update
8954 the util/ssleay.num and util/libeay.num files with any new functions.
8956 perl util/mkdef.pl crypto ssl update
8957 it will update them.
8960 *) Overhauled the Perl interface (perl/*):
8961 - ported BN stuff to OpenSSL's different BN library
8962 - made the perl/ source tree CVS-aware
8963 - renamed the package from SSLeay to OpenSSL (the files still contain
8964 their history because I've copied them in the repository)
8965 - removed obsolete files (the test scripts will be replaced
8966 by better Test::Harness variants in the future)
8967 [Ralf S. Engelschall]
8969 *) First cut for a very conservative source tree cleanup:
8970 1. merge various obsolete readme texts into doc/ssleay.txt
8971 where we collect the old documents and readme texts.
8972 2. remove the first part of files where I'm already sure that we no
8973 longer need them because of three reasons: either they are just temporary
8974 files which were left by Eric or they are preserved original files where
8975 I've verified that the diff is also available in the CVS via "cvs diff
8976 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8977 the crypto/md/ stuff).
8978 [Ralf S. Engelschall]
8980 *) More extension code. Incomplete support for subject and issuer alt
8981 name, issuer and authority key id. Change the i2v function parameters
8982 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8983 what that's for :-) Fix to ASN1 macro which messed up
8984 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8987 *) Preliminary support for ENUMERATED type. This is largely copied from the
8991 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8992 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8994 *) Make sure `make rehash' target really finds the `openssl' program.
8995 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8997 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8998 like to hear about it if this slows down other processors.
9001 *) Add CygWin32 platform information to Configure script.
9002 [Alan Batie <batie@aahz.jf.intel.com>]
9004 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9005 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9007 *) New program nseq to manipulate netscape certificate sequences
9010 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9014 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9015 but the BN code had some problems that would cause failures when
9016 doing certificate verification and some other functions.
9017 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9019 *) Add ASN1 and PEM code to support netscape certificate sequences.
9022 *) Add ASN1 and PEM code to support netscape certificate sequences.
9025 *) Add several PKIX and private extended key usage OIDs.
9028 *) Modify the 'ca' program to handle the new extension code. Modify
9029 openssl.cnf for new extension format, add comments.
9032 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9033 and add a sample to openssl.cnf so req -x509 now adds appropriate
9037 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9038 error code, add initial support to X509_print() and x509 application.
9041 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9042 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9043 stuff is currently isolated and isn't even compiled yet.
9046 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9047 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9048 Removed the versions check from X509 routines when loading extensions:
9049 this allows certain broken certificates that don't set the version
9050 properly to be processed.
9053 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9054 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9055 can still be regenerated with "make depend".
9058 *) Spelling mistake in C version of CAST-128.
9059 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9061 *) Changes to the error generation code. The perl script err-code.pl
9062 now reads in the old error codes and retains the old numbers, only
9063 adding new ones if necessary. It also only changes the .err files if new
9064 codes are added. The makefiles have been modified to only insert errors
9065 when needed (to avoid needlessly modifying header files). This is done
9066 by only inserting errors if the .err file is newer than the auto generated
9067 C file. To rebuild all the error codes from scratch (the old behaviour)
9068 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9069 or delete all the .err files.
9072 *) CAST-128 was incorrectly implemented for short keys. The C version has
9073 been fixed, but is untested. The assembler versions are also fixed, but
9074 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9075 to regenerate it if needed.
9076 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9077 Hagino <itojun@kame.net>]
9079 *) File was opened incorrectly in randfile.c.
9080 [Ulf Möller <ulf@fitug.de>]
9082 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9083 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9084 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9085 al: it's just almost always a UTCTime. Note this patch adds new error
9086 codes so do a "make errors" if there are problems.
9089 *) Correct Linux 1 recognition in config.
9090 [Ulf Möller <ulf@fitug.de>]
9092 *) Remove pointless MD5 hash when using DSA keys in ca.
9093 [Anonymous <nobody@replay.com>]
9095 *) Generate an error if given an empty string as a cert directory. Also
9096 generate an error if handed NULL (previously returned 0 to indicate an
9097 error, but didn't set one).
9098 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9100 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9103 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9104 parameters. This was causing a warning which killed off the Win32 compile.
9107 *) Remove C++ style comments from crypto/bn/bn_local.h.
9108 [Neil Costigan <neil.costigan@celocom.com>]
9110 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9111 based on a text string, looking up short and long names and finally
9112 "dot" format. The "dot" format stuff didn't work. Added new function
9113 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9114 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9115 OID is not part of the table.
9118 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9119 X509_LOOKUP_by_alias().
9122 *) Sort openssl functions by name.
9125 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9126 encryption from sample DSA keys (in case anyone is interested the password
9130 *) Make _all_ *_free functions accept a NULL pointer.
9131 [Frans Heymans <fheymans@isaserver.be>]
9133 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9135 [Anonymous <nobody@replay.com>]
9137 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9138 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9140 *) Don't blow it for numeric -newkey arguments to apps/req.
9141 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9143 *) Temp key "for export" tests were wrong in s3_srvr.c.
9144 [Anonymous <nobody@replay.com>]
9146 *) Add prototype for temp key callback functions
9147 SSL_CTX_set_tmp_{rsa,dh}_callback().
9150 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9151 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9154 *) X509_name_add_entry() freed the wrong thing after an error.
9155 [Arne Ansper <arne@ats.cyber.ee>]
9157 *) rsa_eay.c would attempt to free a NULL context.
9158 [Arne Ansper <arne@ats.cyber.ee>]
9160 *) BIO_s_socket() had a broken should_retry() on Windoze.
9161 [Arne Ansper <arne@ats.cyber.ee>]
9163 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9164 [Arne Ansper <arne@ats.cyber.ee>]
9166 *) Make sure the already existing X509_STORE->depth variable is initialized
9167 in X509_STORE_new(), but document the fact that this variable is still
9168 unused in the certificate verification process.
9169 [Ralf S. Engelschall]
9171 *) Fix the various library and apps files to free up pkeys obtained from
9172 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9175 *) Fix reference counting in X509_PUBKEY_get(). This makes
9176 demos/maurice/example2.c work, amongst others, probably.
9177 [Steve Henson and Ben Laurie]
9179 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9180 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9181 are no longer created. This way we have a single and consistent command
9182 line interface `openssl <command>', similar to `cvs <command>'.
9183 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9185 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9186 BIT STRING wrapper always have zero unused bits.
9189 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9192 *) Make the top-level INSTALL documentation easier to understand.
9195 *) Makefiles updated to exit if an error occurs in a sub-directory
9196 make (including if user presses ^C) [Paul Sutton]
9198 *) Make Montgomery context stuff explicit in RSA data structure.
9201 *) Fix build order of pem and err to allow for generated pem.h.
9204 *) Fix renumbering bug in X509_NAME_delete_entry().
9207 *) Enhanced the err-ins.pl script so it makes the error library number
9208 global and can add a library name. This is needed for external ASN1 and
9209 other error libraries.
9212 *) Fixed sk_insert which never worked properly.
9215 *) Fix ASN1 macros so they can handle indefinite length construted
9216 EXPLICIT tags. Some non standard certificates use these: they can now
9220 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9221 into a single doc/ssleay.txt bundle. This way the information is still
9222 preserved but no longer messes up this directory. Now it's new room for
9223 the new set of documenation files.
9224 [Ralf S. Engelschall]
9226 *) SETs were incorrectly DER encoded. This was a major pain, because they
9227 shared code with SEQUENCEs, which aren't coded the same. This means that
9228 almost everything to do with SETs or SEQUENCEs has either changed name or
9229 number of arguments.
9230 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9232 *) Fix test data to work with the above.
9235 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9236 was already fixed by Eric for 0.9.1 it seems.
9237 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9239 *) Autodetect FreeBSD3.
9242 *) Fix various bugs in Configure. This affects the following platforms:
9246 unixware-2.0-pentium
9250 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9251 before they are needed.
9254 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9258 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9260 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9261 changed SSLeay to OpenSSL in version strings.
9262 [Ralf S. Engelschall]
9264 *) Some fixups to the top-level documents.
9267 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9268 because the symlink to include/ was missing.
9269 [Ralf S. Engelschall]
9271 *) Incorporated the popular no-RSA/DSA-only patches
9272 which allow to compile a RSA-free SSLeay.
9273 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9275 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9276 when "ssleay" is still not found.
9277 [Ralf S. Engelschall]
9279 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9280 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9282 *) Updated the README file.
9283 [Ralf S. Engelschall]
9285 *) Added various .cvsignore files in the CVS repository subdirs
9286 to make a "cvs update" really silent.
9287 [Ralf S. Engelschall]
9289 *) Recompiled the error-definition header files and added
9290 missing symbols to the Win32 linker tables.
9291 [Ralf S. Engelschall]
9293 *) Cleaned up the top-level documents;
9294 o new files: CHANGES and LICENSE
9295 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9296 o merged COPYRIGHT into LICENSE
9297 o removed obsolete TODO file
9298 o renamed MICROSOFT to INSTALL.W32
9299 [Ralf S. Engelschall]
9301 *) Removed dummy files from the 0.9.1b source tree:
9302 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9303 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9304 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9305 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9306 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9307 [Ralf S. Engelschall]
9309 *) Added various platform portability fixes.
9312 *) The Genesis of the OpenSSL rpject:
9313 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9314 Young and Tim J. Hudson created while they were working for C2Net until
9316 [The OpenSSL Project]
9319 Changes between 0.9.0b and 0.9.1b [not released]
9321 *) Updated a few CA certificates under certs/
9324 *) Changed some BIGNUM api stuff.
9327 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9328 DGUX x86, Linux Alpha, etc.
9331 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9332 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9336 *) Add -strparse option to asn1pars program which parses nested
9338 [Dr Stephen Henson <shenson@bigfoot.com>]
9340 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9343 *) DSA fix for "ca" program.
9346 *) Added "-genkey" option to "dsaparam" program.
9349 *) Added RIPE MD160 (rmd160) message digest.
9352 *) Added -a (all) option to "ssleay version" command.
9355 *) Added PLATFORM define which is the id given to Configure.
9358 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9361 *) Extended the ASN.1 parser routines.
9364 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9367 *) Added a BN_CTX to the BN library.
9370 *) Fixed the weak key values in DES library
9373 *) Changed API in EVP library for cipher aliases.
9376 *) Added support for RC2/64bit cipher.
9379 *) Converted the lhash library to the crypto/mem.c functions.
9382 *) Added more recognized ASN.1 object ids.
9385 *) Added more RSA padding checks for SSL/TLS.
9388 *) Added BIO proxy/filter functionality.
9391 *) Added extra_certs to SSL_CTX which can be used
9392 send extra CA certificates to the client in the CA cert chain sending
9393 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9396 *) Now Fortezza is denied in the authentication phase because
9397 this is key exchange mechanism is not supported by SSLeay at all.
9400 *) Additional PKCS1 checks.
9403 *) Support the string "TLSv1" for all TLS v1 ciphers.
9406 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9407 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9410 *) Fixed a few memory leaks.
9413 *) Fixed various code and comment typos.
9416 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9417 bytes sent in the client random.
9418 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob