5 Changes between 0.9.8m (?) and 1.0.0 [xx XXX xxxx]
7 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
8 context. The operation can be customised via the ctrl mechanism in
9 case ENGINEs want to include additional functionality.
12 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
15 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
16 output hashes compatible with older versions of OpenSSL.
17 [Willy Weisz <weisz@vcpc.univie.ac.at>]
19 *) Fix compression algorithm handling: if resuming a session use the
20 compression algorithm of the resumed session instead of determining
21 it from client hello again. Don't allow server to change algorithm.
24 *) Add load_crls() function to apps tidying load_certs() too. Add option
25 to verify utility to allow additional CRLs to be included.
28 *) Update OCSP request code to permit adding custom headers to the request:
29 some responders need this.
32 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
34 [Julia Lawall <julia@diku.dk>]
36 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
37 needlessly dereferenced structures, used obsolete functions and
38 didn't handle all updated verify codes correctly.
41 *) Disable MD2 in the default configuration.
44 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
45 indicate the initial BIO being pushed or popped. This makes it possible
46 to determine whether the BIO is the one explicitly called or as a result
47 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
48 it handles reference counts correctly and doesn't zero out the I/O bio
49 when it is not being explicitly popped. WARNING: applications which
50 included workarounds for the old buggy behaviour will need to be modified
51 or they could free up already freed BIOs.
54 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
55 renaming to all platforms (within the 0.9.8 branch, this was
56 done conditionally on Netware platforms to avoid a name clash).
57 [Guenter <lists@gknw.net>]
59 *) Add ECDHE and PSK support to DTLS.
60 [Michael Tuexen <tuexen@fh-muenster.de>]
62 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
66 *) Add "missing" function EVP_MD_flags() (without this the only way to
67 retrieve a digest flags is by accessing the structure directly. Update
68 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
69 or cipher is registered as in the "from" argument. Print out all
70 registered digests in the dgst usage message instead of manually
71 attempting to work them out.
74 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
75 this allows the use of compression and extensions. Change default cipher
76 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
77 by default unless an application cipher string requests it.
80 *) Alter match criteria in PKCS12_parse(). It used to try to use local
81 key ids to find matching certificates and keys but some PKCS#12 files
82 don't follow the (somewhat unwritten) rules and this strategy fails.
83 Now just gather all certificates together and the first private key
84 then look for the first certificate that matches the key.
87 *) Support use of registered digest and cipher names for dgst and cipher
88 commands instead of having to add each one as a special case. So now
95 openssl dgst -sha256 foo
97 and this works for ENGINE based algorithms too.
101 *) Update Gost ENGINE to support parameter files.
102 [Victor B. Wagner <vitus@cryptocom.ru>]
104 *) Support GeneralizedTime in ca utility.
105 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
107 *) Enhance the hash format used for certificate directory links. The new
108 form uses the canonical encoding (meaning equivalent names will work
109 even if they aren't identical) and uses SHA1 instead of MD5. This form
110 is incompatible with the older format and as a result c_rehash should
111 be used to rebuild symbolic links.
114 *) Make PKCS#8 the default write format for private keys, replacing the
115 traditional format. This form is standardised, more secure and doesn't
116 include an implicit MD5 dependency.
119 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
120 committed to OpenSSL should pass this lot as a minimum.
123 *) Add session ticket override functionality for use by EAP-FAST.
124 [Jouni Malinen <j@w1.fi>]
126 *) Modify HMAC functions to return a value. Since these can be implemented
127 in an ENGINE errors can occur.
130 *) Type-checked OBJ_bsearch_ex.
133 *) Type-checked OBJ_bsearch. Also some constification necessitated
134 by type-checking. Still to come: TXT_DB, bsearch(?),
135 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
139 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
140 seconds to a tm structure directly, instead of going through OS
141 specific date routines. This avoids any issues with OS routines such
142 as the year 2038 bug. New *_adj() functions for ASN1 time structures
143 and X509_time_adj_ex() to cover the extended range. The existing
144 X509_time_adj() is still usable and will no longer have any date issues.
147 *) Delta CRL support. New use deltas option which will attempt to locate
148 and search any appropriate delta CRLs available.
150 This work was sponsored by Google.
153 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
154 code and add additional score elements. Validate alternate CRL paths
155 as part of the CRL checking and indicate a new error "CRL path validation
156 error" in this case. Applications wanting additional details can use
157 the verify callback and check the new "parent" field. If this is not
158 NULL CRL path validation is taking place. Existing applications wont
159 see this because it requires extended CRL support which is off by
162 This work was sponsored by Google.
165 *) Support for freshest CRL extension.
167 This work was sponsored by Google.
170 *) Initial indirect CRL support. Currently only supported in the CRLs
171 passed directly and not via lookup. Process certificate issuer
172 CRL entry extension and lookup CRL entries by bother issuer name
173 and serial number. Check and process CRL issuer entry in IDP extension.
175 This work was sponsored by Google.
178 *) Add support for distinct certificate and CRL paths. The CRL issuer
179 certificate is validated separately in this case. Only enabled if
180 an extended CRL support flag is set: this flag will enable additional
181 CRL functionality in future.
183 This work was sponsored by Google.
186 *) Add support for policy mappings extension.
188 This work was sponsored by Google.
191 *) Fixes to pathlength constraint, self issued certificate handling,
192 policy processing to align with RFC3280 and PKITS tests.
194 This work was sponsored by Google.
197 *) Support for name constraints certificate extension. DN, email, DNS
198 and URI types are currently supported.
200 This work was sponsored by Google.
203 *) To cater for systems that provide a pointer-based thread ID rather
204 than numeric, deprecate the current numeric thread ID mechanism and
205 replace it with a structure and associated callback type. This
206 mechanism allows a numeric "hash" to be extracted from a thread ID in
207 either case, and on platforms where pointers are larger than 'long',
208 mixing is done to help ensure the numeric 'hash' is usable even if it
209 can't be guaranteed unique. The default mechanism is to use "&errno"
210 as a pointer-based thread ID to distinguish between threads.
212 Applications that want to provide their own thread IDs should now use
213 CRYPTO_THREADID_set_callback() to register a callback that will call
214 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
216 Note that ERR_remove_state() is now deprecated, because it is tied
217 to the assumption that thread IDs are numeric. ERR_remove_state(0)
218 to free the current thread's error state should be replaced by
219 ERR_remove_thread_state(NULL).
221 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
222 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
223 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
224 application was previously providing a numeric thread callback that
225 was inappropriate for distinguishing threads, then uniqueness might
226 have been obtained with &errno that happened immediately in the
227 intermediate development versions of OpenSSL; this is no longer the
228 case, the numeric thread callback will now override the automatic use
230 [Geoff Thorpe, with help from Bodo Moeller]
232 *) Initial support for different CRL issuing certificates. This covers a
233 simple case where the self issued certificates in the chain exist and
234 the real CRL issuer is higher in the existing chain.
236 This work was sponsored by Google.
239 *) Removed effectively defunct crypto/store from the build.
242 *) Revamp of STACK to provide stronger type-checking. Still to come:
243 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
244 ASN1_STRING, CONF_VALUE.
247 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
248 RAM on SSL connections. This option can save about 34k per idle SSL.
251 *) Revamp of LHASH to provide stronger type-checking. Still to come:
252 STACK, TXT_DB, bsearch, qsort.
255 *) Initial support for Cryptographic Message Syntax (aka CMS) based
256 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
257 support for data, signedData, compressedData, digestedData and
258 encryptedData, envelopedData types included. Scripts to check against
259 RFC4134 examples draft and interop and consistency checks of many
260 content types and variants.
263 *) Add options to enc utility to support use of zlib compression BIO.
266 *) Extend mk1mf to support importing of options and assembly language
267 files from Configure script, currently only included in VC-WIN32.
268 The assembly language rules can now optionally generate the source
269 files from the associated perl scripts.
272 *) Implement remaining functionality needed to support GOST ciphersuites.
273 Interop testing has been performed using CryptoPro implementations.
274 [Victor B. Wagner <vitus@cryptocom.ru>]
276 *) s390x assembler pack.
279 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
283 *) Implement Opaque PRF Input TLS extension as specified in
284 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
285 official specification yet and no extension type assignment by
286 IANA exists, this extension (for now) will have to be explicitly
287 enabled when building OpenSSL by providing the extension number
288 to use. For example, specify an option
290 -DTLSEXT_TYPE_opaque_prf_input=0x9527
292 to the "config" or "Configure" script to enable the extension,
293 assuming extension number 0x9527 (which is a completely arbitrary
294 and unofficial assignment based on the MD5 hash of the Internet
295 Draft). Note that by doing so, you potentially lose
296 interoperability with other TLS implementations since these might
297 be using the same extension number for other purposes.
299 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
300 opaque PRF input value to use in the handshake. This will create
301 an interal copy of the length-'len' string at 'src', and will
302 return non-zero for success.
304 To get more control and flexibility, provide a callback function
307 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
308 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
312 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
315 Callback function 'cb' will be called in handshakes, and is
316 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
317 Argument 'arg' is for application purposes (the value as given to
318 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
319 be provided to the callback function). The callback function
320 has to return non-zero to report success: usually 1 to use opaque
321 PRF input just if possible, or 2 to enforce use of the opaque PRF
322 input. In the latter case, the library will abort the handshake
323 if opaque PRF input is not successfully negotiated.
325 Arguments 'peerinput' and 'len' given to the callback function
326 will always be NULL and 0 in the case of a client. A server will
327 see the client's opaque PRF input through these variables if
328 available (NULL and 0 otherwise). Note that if the server
329 provides an opaque PRF input, the length must be the same as the
330 length of the client's opaque PRF input.
332 Note that the callback function will only be called when creating
333 a new session (session resumption can resume whatever was
334 previously negotiated), and will not be called in SSL 2.0
335 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
336 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
337 for applications that need to enforce opaque PRF input.
341 *) Update ssl code to support digests other than SHA1+MD5 for handshake
344 [Victor B. Wagner <vitus@cryptocom.ru>]
346 *) Add RFC4507 support to OpenSSL. This includes the corrections in
347 RFC4507bis. The encrypted ticket format is an encrypted encoded
348 SSL_SESSION structure, that way new session features are automatically
351 If a client application caches session in an SSL_SESSION structure
352 support is transparent because tickets are now stored in the encoded
355 The SSL_CTX structure automatically generates keys for ticket
356 protection in servers so again support should be possible
357 with no application modification.
359 If a client or server wishes to disable RFC4507 support then the option
360 SSL_OP_NO_TICKET can be set.
362 Add a TLS extension debugging callback to allow the contents of any client
363 or server extensions to be examined.
365 This work was sponsored by Google.
368 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
369 OpenSSL should now compile cleanly on gcc 4.2
370 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
372 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
373 support including streaming MAC support: this is required for GOST
375 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
377 *) Add option -stream to use PKCS#7 streaming in smime utility. New
378 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
379 to output in BER and PEM format.
382 *) Experimental support for use of HMAC via EVP_PKEY interface. This
383 allows HMAC to be handled via the EVP_DigestSign*() interface. The
384 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
385 ENGINE support for HMAC keys which are unextractable. New -mac and
386 -macopt options to dgst utility.
389 *) New option -sigopt to dgst utility. Update dgst to use
390 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
391 alternative signing paramaters such as X9.31 or PSS in the dgst
395 *) Change ssl_cipher_apply_rule(), the internal function that does
396 the work each time a ciphersuite string requests enabling
397 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
398 removing ("!foo+bar") a class of ciphersuites: Now it maintains
399 the order of disabled ciphersuites such that those ciphersuites
400 that most recently went from enabled to disabled not only stay
401 in order with respect to each other, but also have higher priority
402 than other disabled ciphersuites the next time ciphersuites are
405 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
406 the same ciphersuites as with "HIGH" alone, but in a specific
407 order where the PSK ciphersuites come first (since they are the
408 most recently disabled ciphersuites when "HIGH" is parsed).
410 Also, change ssl_create_cipher_list() (using this new
411 funcionality) such that between otherwise identical
412 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
416 *) Change ssl_create_cipher_list() so that it automatically
417 arranges the ciphersuites in reasonable order before starting
418 to process the rule string. Thus, the definition for "DEFAULT"
419 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
420 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
421 This makes it much easier to arrive at a reasonable default order
422 in applications for which anonymous ciphers are OK (meaning
423 that you can't actually use DEFAULT).
424 [Bodo Moeller; suggested by Victor Duchovni]
426 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
427 processing) into multiple integers instead of setting
428 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
429 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
430 (These masks as well as the individual bit definitions are hidden
431 away into the non-exported interface ssl/ssl_locl.h, so this
432 change to the definition of the SSL_CIPHER structure shouldn't
433 affect applications.) This give us more bits for each of these
434 categories, so there is no longer a need to coagulate AES128 and
435 AES256 into a single algorithm bit, and to coagulate Camellia128
436 and Camellia256 into a single algorithm bit, which has led to all
439 Thus, among other things, the kludge introduced in 0.9.7m and
440 0.9.8e for masking out AES256 independently of AES128 or masking
441 out Camellia256 independently of AES256 is not needed here in 0.9.9.
443 With the change, we also introduce new ciphersuite aliases that
444 so far were missing: "AES128", "AES256", "CAMELLIA128", and
448 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
449 Use the leftmost N bytes of the signature input if the input is
450 larger than the prime q (with N being the size in bytes of q).
453 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
454 it yet and it is largely untested.
457 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
460 *) Initial incomplete changes to avoid need for function casts in OpenSSL
461 some compilers (gcc 4.2 and later) reject their use. Safestack is
462 reimplemented. Update ASN1 to avoid use of legacy functions.
465 *) Win32/64 targets are linked with Winsock2.
468 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
469 to external functions. This can be used to increase CRL handling
470 efficiency especially when CRLs are very large by (for example) storing
471 the CRL revoked certificates in a database.
474 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
475 new CRLs added to a directory can be used. New command line option
476 -verify_return_error to s_client and s_server. This causes real errors
477 to be returned by the verify callback instead of carrying on no matter
478 what. This reflects the way a "real world" verify callback would behave.
481 *) GOST engine, supporting several GOST algorithms and public key formats.
482 Kindly donated by Cryptocom.
485 *) Partial support for Issuing Distribution Point CRL extension. CRLs
486 partitioned by DP are handled but no indirect CRL or reason partitioning
487 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
488 selected via a scoring technique which handles IDP and AKID in CRLs.
491 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
492 will ultimately be used for all verify operations: this will remove the
493 X509_STORE dependency on certificate verification and allow alternative
494 lookup methods. X509_STORE based implementations of these two callbacks.
497 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
498 Modify get_crl() to find a valid (unexpired) CRL if possible.
501 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
502 this would be called X509_CRL_cmp() but that name is already used by
503 a function that just compares CRL issuer names. Cache several CRL
504 extensions in X509_CRL structure and cache CRLDP in X509.
507 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
508 this maps equivalent X509_NAME structures into a consistent structure.
509 Name comparison can then be performed rapidly using memcmp().
512 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
516 *) Allow digests to supply their own micalg string for S/MIME type using
517 the ctrl EVP_MD_CTRL_MICALG.
520 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
521 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
522 ctrl. It can then customise the structure before and/or after signing
526 *) New function OBJ_add_sigid() to allow application defined signature OIDs
527 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
528 to free up any added signature OIDs.
531 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
532 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
533 digest and cipher tables. New options added to openssl utility:
534 list-message-digest-algorithms and list-cipher-algorithms.
537 *) Change the array representation of binary polynomials: the list
538 of degrees of non-zero coefficients is now terminated with -1.
539 Previously it was terminated with 0, which was also part of the
540 value; thus, the array representation was not applicable to
541 polynomials where t^0 has coefficient zero. This change makes
542 the array representation useful in a more general context.
545 *) Various modifications and fixes to SSL/TLS cipher string
546 handling. For ECC, the code now distinguishes between fixed ECDH
547 with RSA certificates on the one hand and with ECDSA certificates
548 on the other hand, since these are separate ciphersuites. The
549 unused code for Fortezza ciphersuites has been removed.
551 For consistency with EDH, ephemeral ECDH is now called "EECDH"
552 (not "ECDHE"). For consistency with the code for DH
553 certificates, use of ECDH certificates is now considered ECDH
554 authentication, not RSA or ECDSA authentication (the latter is
555 merely the CA's signing algorithm and not actively used in the
558 The temporary ciphersuite alias "ECCdraft" is no longer
559 available, and ECC ciphersuites are no longer excluded from "ALL"
560 and "DEFAULT". The following aliases now exist for RFC 4492
561 ciphersuites, most of these by analogy with the DH case:
563 kECDHr - ECDH cert, signed with RSA
564 kECDHe - ECDH cert, signed with ECDSA
565 kECDH - ECDH cert (signed with either RSA or ECDSA)
566 kEECDH - ephemeral ECDH
567 ECDH - ECDH cert or ephemeral ECDH
573 AECDH - anonymous ECDH
574 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
578 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
579 Use correct micalg parameters depending on digest(s) in signed message.
582 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
583 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
586 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
587 an engine to register a method. Add ENGINE lookups for methods and
588 functional reference processing.
591 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
592 EVP_{Sign,Verify}* which allow an application to customise the signature
596 *) New -resign option to smime utility. This adds one or more signers
597 to an existing PKCS#7 signedData structure. Also -md option to use an
598 alternative message digest algorithm for signing.
601 *) Tidy up PKCS#7 routines and add new functions to make it easier to
602 create PKCS7 structures containing multiple signers. Update smime
603 application to support multiple signers.
606 *) New -macalg option to pkcs12 utility to allow setting of an alternative
610 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
611 Reorganize PBE internals to lookup from a static table using NIDs,
612 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
613 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
614 PRF which will be automatically used with PBES2.
617 *) Replace the algorithm specific calls to generate keys in "req" with the
621 *) Update PKCS#7 enveloped data routines to use new API. This is now
622 supported by any public key method supporting the encrypt operation. A
623 ctrl is added to allow the public key algorithm to examine or modify
624 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
628 *) Add a ctrl to asn1 method to allow a public key algorithm to express
629 a default digest type to use. In most cases this will be SHA1 but some
630 algorithms (such as GOST) need to specify an alternative digest. The
631 return value indicates how strong the prefernce is 1 means optional and
632 2 is mandatory (that is it is the only supported type). Modify
633 ASN1_item_sign() to accept a NULL digest argument to indicate it should
634 use the default md. Update openssl utilities to use the default digest
635 type for signing if it is not explicitly indicated.
638 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
639 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
640 signing method from the key type. This effectively removes the link
641 between digests and public key types.
644 *) Add an OID cross reference table and utility functions. Its purpose is to
645 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
646 rsaEncryption. This will allow some of the algorithm specific hackery
647 needed to use the correct OID to be removed.
650 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
651 structures for PKCS7_sign(). They are now set up by the relevant public
655 *) Add provisional EC pkey method with support for ECDSA and ECDH.
658 *) Add support for key derivation (agreement) in the API, DH method and
662 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
663 public and private key formats. As a side effect these add additional
664 command line functionality not previously available: DSA signatures can be
665 generated and verified using pkeyutl and DH key support and generation in
670 [Oliver Tappe <zooey@hirschkaefer.de>]
672 *) New make target "install_html_docs" installs HTML renditions of the
674 [Oliver Tappe <zooey@hirschkaefer.de>]
676 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
677 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
678 support key and parameter generation and add initial key generation
679 functionality for RSA.
682 *) Add functions for main EVP_PKEY_method operations. The undocumented
683 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
684 EVP_PKEY_{encrypt,decrypt}_old.
687 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
688 key API, doesn't do much yet.
691 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
692 public key algorithms. New option to openssl utility:
693 "list-public-key-algorithms" to print out info.
696 *) Implement the Supported Elliptic Curves Extension for
697 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
700 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
701 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
704 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
705 utilities such as rsa, dsa, dsaparam etc except they process any key
709 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
710 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
711 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
715 *) Initial support for pluggable public key ASN1.
716 De-spaghettify the public key ASN1 handling. Move public and private
717 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
718 algorithm specific handling to a single module within the relevant
719 algorithm directory. Add functions to allow (near) opaque processing
720 of public and private key structures.
723 *) Implement the Supported Point Formats Extension for
724 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
727 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
728 for the psk identity [hint] and the psk callback functions to the
729 SSL_SESSION, SSL and SSL_CTX structure.
732 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
736 SSL_CTX_use_psk_identity_hint
737 SSL_get_psk_identity_hint
739 SSL_use_psk_identity_hint
741 [Mika Kousa and Pasi Eronen of Nokia Corporation]
743 *) Add RFC 3161 compliant time stamp request creation, response generation
744 and response verification functionality.
745 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
747 *) Add initial support for TLS extensions, specifically for the server_name
748 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
749 have new members for a host name. The SSL data structure has an
750 additional member SSL_CTX *initial_ctx so that new sessions can be
751 stored in that context to allow for session resumption, even after the
752 SSL has been switched to a new SSL_CTX in reaction to a client's
753 server_name extension.
755 New functions (subject to change):
758 SSL_get_servername_type()
761 New CTRL codes and macros (subject to change):
763 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
764 - SSL_CTX_set_tlsext_servername_callback()
765 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
766 - SSL_CTX_set_tlsext_servername_arg()
767 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
769 openssl s_client has a new '-servername ...' option.
771 openssl s_server has new options '-servername_host ...', '-cert2 ...',
772 '-key2 ...', '-servername_fatal' (subject to change). This allows
773 testing the HostName extension for a specific single host name ('-cert'
774 and '-key' remain fallbacks for handshakes without HostName
775 negotiation). If the unrecogninzed_name alert has to be sent, this by
776 default is a warning; it becomes fatal with the '-servername_fatal'
779 [Peter Sylvester, Remy Allais, Christophe Renou]
781 *) Whirlpool hash implementation is added.
784 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
785 bn(64,32). Because of instruction set limitations it doesn't have
786 any negative impact on performance. This was done mostly in order
787 to make it possible to share assembler modules, such as bn_mul_mont
788 implementations, between 32- and 64-bit builds without hassle.
791 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
792 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
796 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
797 dedicated Montgomery multiplication procedure, is introduced.
798 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
799 "64-bit" performance on certain 32-bit targets.
802 *) New option SSL_OP_NO_COMP to disable use of compression selectively
803 in SSL structures. New SSL ctrl to set maximum send fragment size.
804 Save memory by seeting the I/O buffer sizes dynamically instead of
805 using the maximum available value.
808 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
809 in addition to the text details.
812 *) Very, very preliminary EXPERIMENTAL support for printing of general
813 ASN1 structures. This currently produces rather ugly output and doesn't
814 handle several customised structures at all.
817 *) Integrated support for PVK file format and some related formats such
818 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
819 these in the 'rsa' and 'dsa' utilities.
822 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
825 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
826 place for the (very old) "NETSCAPE" format certificates which are now
827 handled using new ASN1 code equivalents.
830 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
831 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
832 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
835 *) Modify CRL distribution points extension code to print out previously
836 unsupported fields. Enhance extension setting code to allow setting of
840 *) Add print and set support for Issuing Distribution Point CRL extension.
843 *) Change 'Configure' script to enable Camellia by default.
846 Changes between 0.9.8l (?) and 0.9.8m (?) [xx XXX xxxx]
848 *) The code that handled flushing of data in SSL/TLS originally used the
849 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
850 the problem outlined in PR#1949. The fix suggested there however can
851 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
852 of Apache). So instead simplify the code to flush unconditionally.
853 This should be fine since flushing with no data to flush is a no op.
856 *) Handle TLS versions 2.0 and later properly and correctly use the
857 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
858 off ancient servers have a habit of sticking around for a while...
861 *) Modify compression code so it frees up structures without using the
862 ex_data callbacks. This works around a problem where some applications
863 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
864 restarting) then use compression (e.g. SSL with compression) later.
865 This results in significant per-connection memory leaks and
866 has caused some security issues including CVE-2008-1678 and
870 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
871 change when encrypting or decrypting.
874 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
875 connect (but not renegotiate) with servers which do not support RI.
876 Until RI is more widely deployed this option is enabled by default.
879 *) Add "missing" ssl ctrls to clear options and mode.
882 *) If client attempts to renegotiate and doesn't support RI respond with
883 a no_renegotiation alert as required by RFC5746. Some renegotiating
884 TLS clients will continue a connection gracefully when they receive
885 the alert. Unfortunately OpenSSL mishandled this alert and would hang
886 waiting for a server hello which it will never receive. Now we treat a
887 received no_renegotiation alert as a fatal error. This is because
888 applications requesting a renegotiation might well expect it to succeed
889 and would have no code in place to handle the server denying it so the
890 only safe thing to do is to terminate the connection.
893 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
894 peer supports secure renegotiation and 0 otherwise. Print out peer
895 renegotiation support in s_client/s_server.
898 *) Replace the highly broken and deprecated SPKAC certification method with
899 the updated NID creation version. This should correctly handle UTF8.
902 *) Implement RFC5746. Re-enable renegotiation but require the extension
903 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
904 turns out to be a bad idea. It has been replaced by
905 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
906 SSL_CTX_set_options(). This is really not recommended unless you
907 know what you are doing.
908 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
910 *) Fixes to stateless session resumption handling. Use initial_ctx when
911 issuing and attempting to decrypt tickets in case it has changed during
912 servername handling. Use a non-zero length session ID when attempting
913 stateless session resumption: this makes it possible to determine if
914 a resumption has occurred immediately after receiving server hello
915 (several places in OpenSSL subtly assume this) instead of later in
919 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
920 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
921 fixes for a few places where the return code is not checked
923 [Julia Lawall <julia@diku.dk>]
925 *) Add --strict-warnings option to Configure script to include devteam
926 warnings in other configurations.
929 *) Add support for --libdir option and LIBDIR variable in makefiles. This
930 makes it possible to install openssl libraries in locations which
931 have names other than "lib", for example "/usr/lib64" which some
933 [Steve Henson, based on patch from Jeremy Utley]
935 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
936 X690 8.9.12 and can produce some misleading textual output of OIDs.
937 [Steve Henson, reported by Dan Kaminsky]
939 *) Delete MD2 from algorithm tables. This follows the recommendation in
940 several standards that it is not used in new applications due to
941 several cryptographic weaknesses. For binary compatibility reasons
942 the MD2 API is still compiled in by default.
945 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
949 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
950 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
952 [Guenter <lists@gknw.net>]
954 *) Fix the server certificate chain building code to use X509_verify_cert(),
955 it used to have an ad-hoc builder which was unable to cope with anything
956 other than a simple chain.
957 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
959 *) Don't check self signed certificate signatures in X509_verify_cert()
960 by default (a flag can override this): it just wastes time without
961 adding any security. As a useful side effect self signed root CAs
962 with non-FIPS digests are now usable in FIPS mode.
965 *) In dtls1_process_out_of_seq_message() the check if the current message
966 is already buffered was missing. For every new message was memory
967 allocated, allowing an attacker to perform an denial of service attack
968 with sending out of seq handshake messages until there is no memory
969 left. Additionally every future messege was buffered, even if the
970 sequence number made no sense and would be part of another handshake.
971 So only messages with sequence numbers less than 10 in advance will be
972 buffered. (CVE-2009-1378)
973 [Robin Seggelmann, discovered by Daniel Mentz]
975 *) Records are buffered if they arrive with a future epoch to be
976 processed after finishing the corresponding handshake. There is
977 currently no limitation to this buffer allowing an attacker to perform
978 a DOS attack with sending records with future epochs until there is no
979 memory left. This patch adds the pqueue_size() function to detemine
980 the size of a buffer and limits the record buffer to 100 entries.
982 [Robin Seggelmann, discovered by Daniel Mentz]
984 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
985 parent structure is freed. (CVE-2009-1379)
988 *) Handle non-blocking I/O properly in SSL_shutdown() call.
989 [Darryl Miles <darryl-mailinglists@netbauds.net>]
992 [Ilya O. <vrghost@gmail.com>]
994 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
996 *) Disable renegotiation completely - this fixes a severe security
997 problem (CVE-2009-3555) at the cost of breaking all
998 renegotiation. Renegotiation can be re-enabled by setting
999 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1000 run-time. This is really not recommended unless you know what
1004 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1006 *) Don't set val to NULL when freeing up structures, it is freed up by
1007 underlying code. If sizeof(void *) > sizeof(long) this can result in
1008 zeroing past the valid field. (CVE-2009-0789)
1009 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1011 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1012 checked correctly. This would allow some invalid signed attributes to
1013 appear to verify correctly. (CVE-2009-0591)
1014 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1016 *) Reject UniversalString and BMPString types with invalid lengths. This
1017 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1018 a legal length. (CVE-2009-0590)
1021 *) Set S/MIME signing as the default purpose rather than setting it
1022 unconditionally. This allows applications to override it at the store
1026 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1027 to handle some structures.
1030 *) Improve efficiency of mem_gets: don't search whole buffer each time
1032 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1034 *) New -hex option for openssl rand.
1037 *) Print out UTF8String and NumericString when parsing ASN1.
1040 *) Support NumericString type for name components.
1043 *) Allow CC in the environment to override the automatically chosen
1044 compiler. Note that nothing is done to ensure flags work with the
1048 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1050 *) Properly check EVP_VerifyFinal() and similar return values
1052 [Ben Laurie, Bodo Moeller, Google Security Team]
1054 *) Enable TLS extensions by default.
1057 *) Allow the CHIL engine to be loaded, whether the application is
1058 multithreaded or not. (This does not release the developer from the
1059 obligation to set up the dynamic locking callbacks.)
1060 [Sander Temme <sander@temme.net>]
1062 *) Use correct exit code if there is an error in dgst command.
1063 [Steve Henson; problem pointed out by Roland Dirlewanger]
1065 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1066 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1069 *) Add experimental JPAKE support, including demo authentication in
1070 s_client and s_server.
1073 *) Set the comparison function in v3_addr_canonize().
1074 [Rob Austein <sra@hactrn.net>]
1076 *) Add support for XMPP STARTTLS in s_client.
1077 [Philip Paeps <philip@freebsd.org>]
1079 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1080 to ensure that even with this option, only ciphersuites in the
1081 server's preference list will be accepted. (Note that the option
1082 applies only when resuming a session, so the earlier behavior was
1083 just about the algorithm choice for symmetric cryptography.)
1086 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1088 *) Fix NULL pointer dereference if a DTLS server received
1089 ChangeCipherSpec as first record (CVE-2009-1386).
1092 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1093 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1096 *) The fix in 0.9.8c that supposedly got rid of unsafe
1097 double-checked locking was incomplete for RSA blinding,
1098 addressing just one layer of what turns out to have been
1099 doubly unsafe triple-checked locking.
1101 So now fix this for real by retiring the MONT_HELPER macro
1102 in crypto/rsa/rsa_eay.c.
1104 [Bodo Moeller; problem pointed out by Marius Schilder]
1106 *) Various precautionary measures:
1108 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1110 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1111 (NB: This would require knowledge of the secret session ticket key
1112 to exploit, in which case you'd be SOL either way.)
1114 - Change bn_nist.c so that it will properly handle input BIGNUMs
1115 outside the expected range.
1117 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1120 [Neel Mehta, Bodo Moeller]
1122 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1123 the load fails. Useful for distros.
1124 [Ben Laurie and the FreeBSD team]
1126 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1129 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1132 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1134 This work was sponsored by Logica.
1137 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1138 keystores. Support for SSL/TLS client authentication too.
1139 Not compiled unless enable-capieng specified to Configure.
1141 This work was sponsored by Logica.
1144 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1145 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1146 attribute creation routines such as certifcate requests and PKCS#12
1150 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1152 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1153 handshake which could lead to a cilent crash as found using the
1154 Codenomicon TLS test suite (CVE-2008-1672)
1155 [Steve Henson, Mark Cox]
1157 *) Fix double free in TLS server name extensions which could lead to
1158 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1161 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1163 Clear the error queue to ensure that error entries left from
1164 older function calls do not interfere with the correct operation.
1165 [Lutz Jaenicke, Erik de Castro Lopo]
1167 *) Remove root CA certificates of commercial CAs:
1169 The OpenSSL project does not recommend any specific CA and does not
1170 have any policy with respect to including or excluding any CA.
1171 Therefore it does not make any sense to ship an arbitrary selection
1172 of root CA certificates with the OpenSSL software.
1175 *) RSA OAEP patches to fix two separate invalid memory reads.
1176 The first one involves inputs when 'lzero' is greater than
1177 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1178 before the beginning of from). The second one involves inputs where
1179 the 'db' section contains nothing but zeroes (there is a one-byte
1180 invalid read after the end of 'db').
1181 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1183 *) Partial backport from 0.9.9-dev:
1185 Introduce bn_mul_mont (dedicated Montgomery multiplication
1186 procedure) as a candidate for BIGNUM assembler implementation.
1187 While 0.9.9-dev uses assembler for various architectures, only
1188 x86_64 is available by default here in the 0.9.8 branch, and
1189 32-bit x86 is available through a compile-time setting.
1191 To try the 32-bit x86 assembler implementation, use Configure
1192 option "enable-montasm" (which exists only for this backport).
1194 As "enable-montasm" for 32-bit x86 disclaims code stability
1195 anyway, in this constellation we activate additional code
1196 backported from 0.9.9-dev for further performance improvements,
1197 namely BN_from_montgomery_word. (To enable this otherwise,
1198 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1200 [Andy Polyakov (backport partially by Bodo Moeller)]
1202 *) Add TLS session ticket callback. This allows an application to set
1203 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1204 values. This is useful for key rollover for example where several key
1205 sets may exist with different names.
1208 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1209 This was broken until now in 0.9.8 releases, such that the only way
1210 a registered ENGINE could be used (assuming it initialises
1211 successfully on the host) was to explicitly set it as the default
1212 for the relevant algorithms. This is in contradiction with 0.9.7
1213 behaviour and the documentation. With this fix, when an ENGINE is
1214 registered into a given algorithm's table of implementations, the
1215 'uptodate' flag is reset so that auto-discovery will be used next
1216 time a new context for that algorithm attempts to select an
1218 [Ian Lister (tweaked by Geoff Thorpe)]
1220 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1221 implemention in the following ways:
1223 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1226 Lack of BER streaming support means one pass streaming processing is
1227 only supported if data is detached: setting the streaming flag is
1228 ignored for embedded content.
1230 CMS support is disabled by default and must be explicitly enabled
1231 with the enable-cms configuration option.
1234 *) Update the GMP engine glue to do direct copies between BIGNUM and
1235 mpz_t when openssl and GMP use the same limb size. Otherwise the
1236 existing "conversion via a text string export" trick is still used.
1237 [Paul Sheer <paulsheer@gmail.com>]
1239 *) Zlib compression BIO. This is a filter BIO which compressed and
1240 uncompresses any data passed through it.
1243 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1244 RFC3394 compatible AES key wrapping.
1247 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1248 sets string data without copying. X509_ALGOR_set0() and
1249 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1250 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1251 from an X509_ATTRIBUTE structure optionally checking it occurs only
1252 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1256 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1257 to get the expected BN_FLG_CONSTTIME behavior.
1258 [Bodo Moeller (Google)]
1262 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1263 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1264 - added some more tests to do_tests.pl
1265 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1266 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1267 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1268 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1269 - various changes to netware.pl to enable gcc-cross builds on Win32
1271 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1272 - various changes to fix missing prototype warnings
1273 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1274 - added AES, WHIRLPOOL and CPUID assembler code to build files
1275 - added missing AES assembler make rules to mk1mf.pl
1276 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1277 [Guenter Knauf <eflash@gmx.net>]
1279 *) Implement certificate status request TLS extension defined in RFC3546.
1280 A client can set the appropriate parameters and receive the encoded
1281 OCSP response via a callback. A server can query the supplied parameters
1282 and set the encoded OCSP response in the callback. Add simplified examples
1283 to s_client and s_server.
1286 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1288 *) Fix various bugs:
1289 + Binary incompatibility of ssl_ctx_st structure
1290 + DTLS interoperation with non-compliant servers
1291 + Don't call get_session_cb() without proposed session
1292 + Fix ia64 assembler code
1293 [Andy Polyakov, Steve Henson]
1295 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1297 *) DTLS Handshake overhaul. There were longstanding issues with
1298 OpenSSL DTLS implementation, which were making it impossible for
1299 RFC 4347 compliant client to communicate with OpenSSL server.
1300 Unfortunately just fixing these incompatibilities would "cut off"
1301 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1302 server keeps tolerating non RFC compliant syntax. The opposite is
1303 not true, 0.9.8f client can not communicate with earlier server.
1304 This update even addresses CVE-2007-4995.
1307 *) Changes to avoid need for function casts in OpenSSL: some compilers
1308 (gcc 4.2 and later) reject their use.
1309 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1312 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1313 RFC4507bis. The encrypted ticket format is an encrypted encoded
1314 SSL_SESSION structure, that way new session features are automatically
1317 If a client application caches session in an SSL_SESSION structure
1318 support is transparent because tickets are now stored in the encoded
1321 The SSL_CTX structure automatically generates keys for ticket
1322 protection in servers so again support should be possible
1323 with no application modification.
1325 If a client or server wishes to disable RFC4507 support then the option
1326 SSL_OP_NO_TICKET can be set.
1328 Add a TLS extension debugging callback to allow the contents of any client
1329 or server extensions to be examined.
1331 This work was sponsored by Google.
1334 *) Add initial support for TLS extensions, specifically for the server_name
1335 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1336 have new members for a host name. The SSL data structure has an
1337 additional member SSL_CTX *initial_ctx so that new sessions can be
1338 stored in that context to allow for session resumption, even after the
1339 SSL has been switched to a new SSL_CTX in reaction to a client's
1340 server_name extension.
1342 New functions (subject to change):
1344 SSL_get_servername()
1345 SSL_get_servername_type()
1348 New CTRL codes and macros (subject to change):
1350 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1351 - SSL_CTX_set_tlsext_servername_callback()
1352 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1353 - SSL_CTX_set_tlsext_servername_arg()
1354 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1356 openssl s_client has a new '-servername ...' option.
1358 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1359 '-key2 ...', '-servername_fatal' (subject to change). This allows
1360 testing the HostName extension for a specific single host name ('-cert'
1361 and '-key' remain fallbacks for handshakes without HostName
1362 negotiation). If the unrecogninzed_name alert has to be sent, this by
1363 default is a warning; it becomes fatal with the '-servername_fatal'
1366 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1368 *) Add AES and SSE2 assembly language support to VC++ build.
1371 *) Mitigate attack on final subtraction in Montgomery reduction.
1374 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1375 (which previously caused an internal error).
1378 *) Squeeze another 10% out of IGE mode when in != out.
1381 *) AES IGE mode speedup.
1382 [Dean Gaudet (Google)]
1384 *) Add the Korean symmetric 128-bit cipher SEED (see
1385 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1386 add SEED ciphersuites from RFC 4162:
1388 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1389 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1390 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1391 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1393 To minimize changes between patchlevels in the OpenSSL 0.9.8
1394 series, SEED remains excluded from compilation unless OpenSSL
1395 is configured with 'enable-seed'.
1396 [KISA, Bodo Moeller]
1398 *) Mitigate branch prediction attacks, which can be practical if a
1399 single processor is shared, allowing a spy process to extract
1400 information. For detailed background information, see
1401 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1402 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1403 and Necessary Software Countermeasures"). The core of the change
1404 are new versions BN_div_no_branch() and
1405 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1406 respectively, which are slower, but avoid the security-relevant
1407 conditional branches. These are automatically called by BN_div()
1408 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1409 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1410 remove a conditional branch.
1412 BN_FLG_CONSTTIME is the new name for the previous
1413 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1414 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1415 in the exponent causes BN_mod_exp_mont() to use the alternative
1416 implementation in BN_mod_exp_mont_consttime().) The old name
1417 remains as a deprecated alias.
1419 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1420 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1421 constant-time implementations for more than just exponentiation.
1422 Here too the old name is kept as a deprecated alias.
1424 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1425 the BN_BLINDING structure gets an independent copy of the
1426 modulus. This means that the previous "BIGNUM *m" argument to
1427 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1428 essentially becomes "const BIGNUM *m", although we can't actually
1429 change this in the header file before 0.9.9. It allows
1430 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1431 enable BN_FLG_CONSTTIME.
1433 [Matthew D Wood (Intel Corp)]
1435 *) In the SSL/TLS server implementation, be strict about session ID
1436 context matching (which matters if an application uses a single
1437 external cache for different purposes). Previously,
1438 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1439 set. This did ensure strict client verification, but meant that,
1440 with applications using a single external cache for quite
1441 different requirements, clients could circumvent ciphersuite
1442 restrictions for a given session ID context by starting a session
1443 in a different context.
1446 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1447 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1448 authentication-only ciphersuites.
1451 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1452 not complete and could lead to a possible single byte overflow
1453 (CVE-2007-5135) [Ben Laurie]
1455 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1457 *) Since AES128 and AES256 (and similarly Camellia128 and
1458 Camellia256) share a single mask bit in the logic of
1459 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1460 kludge to work properly if AES128 is available and AES256 isn't
1461 (or if Camellia128 is available and Camellia256 isn't).
1464 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1465 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1466 When a point or a seed is encoded in a BIT STRING, we need to
1467 prevent the removal of trailing zero bits to get the proper DER
1468 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1469 of a NamedBitList, for which trailing 0 bits need to be removed.)
1472 *) Have SSL/TLS server implementation tolerate "mismatched" record
1473 protocol version while receiving ClientHello even if the
1474 ClientHello is fragmented. (The server can't insist on the
1475 particular protocol version it has chosen before the ServerHello
1476 message has informed the client about his choice.)
1479 *) Add RFC 3779 support.
1480 [Rob Austein for ARIN, Ben Laurie]
1482 *) Load error codes if they are not already present instead of using a
1483 static variable. This allows them to be cleanly unloaded and reloaded.
1484 Improve header file function name parsing.
1487 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1488 or CAPABILITY handshake as required by RFCs.
1491 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1493 *) Introduce limits to prevent malicious keys being able to
1494 cause a denial of service. (CVE-2006-2940)
1495 [Steve Henson, Bodo Moeller]
1497 *) Fix ASN.1 parsing of certain invalid structures that can result
1498 in a denial of service. (CVE-2006-2937) [Steve Henson]
1500 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1501 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1503 *) Fix SSL client code which could crash if connecting to a
1504 malicious SSLv2 server. (CVE-2006-4343)
1505 [Tavis Ormandy and Will Drewry, Google Security Team]
1507 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1508 match only those. Before that, "AES256-SHA" would be interpreted
1509 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1510 the same strength classification in 0.9.7h) as we currently only
1511 have a single AES bit in the ciphersuite description bitmap.
1512 That change, however, also applied to ciphersuite strings such as
1513 "RC4-MD5" that intentionally matched multiple ciphersuites --
1514 namely, SSL 2.0 ciphersuites in addition to the more common ones
1515 from SSL 3.0/TLS 1.0.
1517 So we change the selection algorithm again: Naming an explicit
1518 ciphersuite selects this one ciphersuite, and any other similar
1519 ciphersuite (same bitmap) from *other* protocol versions.
1520 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1521 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1523 Since SSL 2.0 does not have any ciphersuites for which the
1524 128/256 bit distinction would be relevant, this works for now.
1525 The proper fix will be to use different bits for AES128 and
1526 AES256, which would have avoided the problems from the beginning;
1527 however, bits are scarce, so we can only do this in a new release
1528 (not just a patchlevel) when we can change the SSL_CIPHER
1529 definition to split the single 'unsigned long mask' bitmap into
1530 multiple values to extend the available space.
1534 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1536 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1537 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1539 *) Add AES IGE and biIGE modes.
1542 *) Change the Unix randomness entropy gathering to use poll() when
1543 possible instead of select(), since the latter has some
1544 undesirable limitations.
1545 [Darryl Miles via Richard Levitte and Bodo Moeller]
1547 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1548 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1549 cannot be implicitly activated as part of, e.g., the "AES" alias.
1550 However, please upgrade to OpenSSL 0.9.9[-dev] for
1551 non-experimental use of the ECC ciphersuites to get TLS extension
1552 support, which is required for curve and point format negotiation
1553 to avoid potential handshake problems.
1556 *) Disable rogue ciphersuites:
1558 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1559 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1560 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1562 The latter two were purportedly from
1563 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1566 Also deactivate the remaining ciphersuites from
1567 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1568 unofficial, and the ID has long expired.
1571 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1572 dual-core machines) and other potential thread-safety issues.
1575 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1576 versions), which is now available for royalty-free use
1577 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1578 Also, add Camellia TLS ciphersuites from RFC 4132.
1580 To minimize changes between patchlevels in the OpenSSL 0.9.8
1581 series, Camellia remains excluded from compilation unless OpenSSL
1582 is configured with 'enable-camellia'.
1585 *) Disable the padding bug check when compression is in use. The padding
1586 bug check assumes the first packet is of even length, this is not
1587 necessarily true if compresssion is enabled and can result in false
1588 positives causing handshake failure. The actual bug test is ancient
1589 code so it is hoped that implementations will either have fixed it by
1590 now or any which still have the bug do not support compression.
1593 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1595 *) When applying a cipher rule check to see if string match is an explicit
1596 cipher suite and only match that one cipher suite if it is.
1599 *) Link in manifests for VC++ if needed.
1600 [Austin Ziegler <halostatue@gmail.com>]
1602 *) Update support for ECC-based TLS ciphersuites according to
1603 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1604 TLS extensions, which are supported starting with the 0.9.9
1605 branch, not in the OpenSSL 0.9.8 branch).
1608 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1609 opaque EVP_CIPHER_CTX handling.
1612 *) Fixes and enhancements to zlib compression code. We now only use
1613 "zlib1.dll" and use the default __cdecl calling convention on Win32
1614 to conform with the standards mentioned here:
1615 http://www.zlib.net/DLL_FAQ.txt
1616 Static zlib linking now works on Windows and the new --with-zlib-include
1617 --with-zlib-lib options to Configure can be used to supply the location
1618 of the headers and library. Gracefully handle case where zlib library
1622 *) Several fixes and enhancements to the OID generation code. The old code
1623 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1624 handle numbers larger than ULONG_MAX, truncated printing and had a
1625 non standard OBJ_obj2txt() behaviour.
1628 *) Add support for building of engines under engine/ as shared libraries
1629 under VC++ build system.
1632 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1633 Hopefully, we will not see any false combination of paths any more.
1636 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1638 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1639 (part of SSL_OP_ALL). This option used to disable the
1640 countermeasure against man-in-the-middle protocol-version
1641 rollback in the SSL 2.0 server implementation, which is a bad
1642 idea. (CVE-2005-2969)
1644 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1645 for Information Security, National Institute of Advanced Industrial
1646 Science and Technology [AIST], Japan)]
1648 *) Add two function to clear and return the verify parameter flags.
1651 *) Keep cipherlists sorted in the source instead of sorting them at
1652 runtime, thus removing the need for a lock.
1655 *) Avoid some small subgroup attacks in Diffie-Hellman.
1656 [Nick Mathewson and Ben Laurie]
1658 *) Add functions for well-known primes.
1661 *) Extended Windows CE support.
1662 [Satoshi Nakamura and Andy Polyakov]
1664 *) Initialize SSL_METHOD structures at compile time instead of during
1665 runtime, thus removing the need for a lock.
1668 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1669 attempting to decrypt each encrypted key in turn. Add support to
1673 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1675 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1678 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1681 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1682 key into the same file any more.
1685 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1688 *) Add -utf8 command line and config file option to 'ca'.
1689 [Stefan <stf@udoma.org]
1691 *) Removed the macro des_crypt(), as it seems to conflict with some
1692 libraries. Use DES_crypt().
1695 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1696 involves renaming the source and generated shared-libs for
1697 both. The engines will accept the corrected or legacy ids
1698 ('ncipher' and '4758_cca' respectively) when binding. NB,
1699 this only applies when building 'shared'.
1700 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1702 *) Add attribute functions to EVP_PKEY structure. Modify
1703 PKCS12_create() to recognize a CSP name attribute and
1704 use it. Make -CSP option work again in pkcs12 utility.
1707 *) Add new functionality to the bn blinding code:
1708 - automatic re-creation of the BN_BLINDING parameters after
1709 a fixed number of uses (currently 32)
1710 - add new function for parameter creation
1711 - introduce flags to control the update behaviour of the
1712 BN_BLINDING parameters
1713 - hide BN_BLINDING structure
1714 Add a second BN_BLINDING slot to the RSA structure to improve
1715 performance when a single RSA object is shared among several
1719 *) Add support for DTLS.
1720 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1722 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1723 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1726 *) Remove buggy and incompletet DH cert support from
1727 ssl/ssl_rsa.c and ssl/s3_both.c
1730 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1731 the apps/openssl applications.
1734 *) Compile clean with "-Wall -Wmissing-prototypes
1735 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1736 DEBUG_SAFESTACK must also be set.
1739 *) Change ./Configure so that certain algorithms can be disabled by default.
1740 The new counterpiece to "no-xxx" is "enable-xxx".
1742 The patented RC5 and MDC2 algorithms will now be disabled unless
1743 "enable-rc5" and "enable-mdc2", respectively, are specified.
1745 (IDEA remains enabled despite being patented. This is because IDEA
1746 is frequently required for interoperability, and there is no license
1747 fee for non-commercial use. As before, "no-idea" can be used to
1748 avoid this algorithm.)
1752 *) Add processing of proxy certificates (see RFC 3820). This work was
1753 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1754 EGEE (Enabling Grids for E-science in Europe).
1757 *) RC4 performance overhaul on modern architectures/implementations, such
1758 as Intel P4, IA-64 and AMD64.
1761 *) New utility extract-section.pl. This can be used specify an alternative
1762 section number in a pod file instead of having to treat each file as
1763 a separate case in Makefile. This can be done by adding two lines to the
1766 =for comment openssl_section:XXX
1768 The blank line is mandatory.
1772 *) New arguments -certform, -keyform and -pass for s_client and s_server
1773 to allow alternative format key and certificate files and passphrase
1777 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1778 update associated structures and add various utility functions.
1780 Add new policy related verify parameters, include policy checking in
1781 standard verify code. Enhance 'smime' application with extra parameters
1782 to support policy checking and print out.
1785 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1786 Nehemiah processors. These extensions support AES encryption in hardware
1787 as well as RNG (though RNG support is currently disabled).
1788 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1790 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1793 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1794 [Andy Polyakov and a number of other people]
1796 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1797 implementation contributed by IBM.
1798 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1800 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1801 exponent rather than 'unsigned long'. There is a corresponding change to
1802 the new 'rsa_keygen' element of the RSA_METHOD structure.
1803 [Jelte Jansen, Geoff Thorpe]
1805 *) Functionality for creating the initial serial number file is now
1806 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1808 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1809 number file to 1, which is bound to cause problems. To avoid
1810 the problems while respecting compatibility between different 0.9.7
1811 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1812 CA.pl for serial number initialization. With the new release 0.9.8,
1813 we can fix the problem directly in the 'ca' utility.)
1816 *) Reduced header interdepencies by declaring more opaque objects in
1817 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1818 give fewer recursive includes, which could break lazy source code - so
1819 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1820 developers should define this symbol when building and using openssl to
1821 ensure they track the recommended behaviour, interfaces, [etc], but
1822 backwards-compatible behaviour prevails when this isn't defined.
1825 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1828 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1829 This will generate a random key of the appropriate length based on the
1830 cipher context. The EVP_CIPHER can provide its own random key generation
1831 routine to support keys of a specific form. This is used in the des and
1832 3des routines to generate a key of the correct parity. Update S/MIME
1833 code to use new functions and hence generate correct parity DES keys.
1834 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1835 valid (weak or incorrect parity).
1838 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1839 as looking them up. This is useful when the verified structure may contain
1840 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1841 present unless the new PKCS7_NO_CRL flag is asserted.
1844 *) Extend ASN1 oid configuration module. It now additionally accepts the
1847 shortName = some long name, 1.2.3.4
1850 *) Reimplemented the BN_CTX implementation. There is now no more static
1851 limitation on the number of variables it can handle nor the depth of the
1852 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1853 information can now expand as required, and rather than having a single
1854 static array of bignums, BN_CTX now uses a linked-list of such arrays
1855 allowing it to expand on demand whilst maintaining the usefulness of
1856 BN_CTX's "bundling".
1859 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1860 to allow all RSA operations to function using a single BN_CTX.
1863 *) Preliminary support for certificate policy evaluation and checking. This
1864 is initially intended to pass the tests outlined in "Conformance Testing
1865 of Relying Party Client Certificate Path Processing Logic" v1.07.
1868 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1869 remained unused and not that useful. A variety of other little bignum
1870 tweaks and fixes have also been made continuing on from the audit (see
1874 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1875 associated ASN1, EVP and SSL functions and old ASN1 macros.
1878 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1879 and this should never fail. So the return value from the use of
1880 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1881 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1884 *) BN_CTX_get() should return zero-valued bignums, providing the same
1885 initialised value as BN_new().
1886 [Geoff Thorpe, suggested by Ulf Möller]
1888 *) Support for inhibitAnyPolicy certificate extension.
1891 *) An audit of the BIGNUM code is underway, for which debugging code is
1892 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1893 is considered valid when processing BIGNUMs, and causes execution to
1894 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1895 further steps are taken to deliberately pollute unused data in BIGNUM
1896 structures to try and expose faulty code further on. For now, openssl will
1897 (in its default mode of operation) continue to tolerate the inconsistent
1898 forms that it has tolerated in the past, but authors and packagers should
1899 consider trying openssl and their own applications when compiled with
1900 these debugging symbols defined. It will help highlight potential bugs in
1901 their own code, and will improve the test coverage for OpenSSL itself. At
1902 some point, these tighter rules will become openssl's default to improve
1903 maintainability, though the assert()s and other overheads will remain only
1904 in debugging configurations. See bn.h for more details.
1905 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1907 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1908 that can only be obtained through BN_CTX_new() (which implicitly
1909 initialises it). The presence of this function only made it possible
1910 to overwrite an existing structure (and cause memory leaks).
1913 *) Because of the callback-based approach for implementing LHASH as a
1914 template type, lh_insert() adds opaque objects to hash-tables and
1915 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1916 to clean up those corresponding objects before destroying the hash table
1917 (and losing the object pointers). So some over-zealous constifications in
1918 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1919 objects as "const" and the lh_doall[_arg] callback wrappers are not
1920 prototyped to have "const" restrictions on the object pointers they are
1921 given (and so aren't required to cast them away any more).
1924 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1925 (speed) prefers to use its own implementation. The two implementations
1926 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1927 its object type properly exposed (MS_TM) instead of casting to/from "char
1928 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1929 aren't necessarily the greatest nomenclatures - but this is what was used
1930 internally to the implementation so I've used that for now.
1933 *) Ensure that deprecated functions do not get compiled when
1934 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1935 the self-tests were still using deprecated key-generation functions so
1936 these have been updated also.
1939 *) Reorganise PKCS#7 code to separate the digest location functionality
1940 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1941 New function PKCS7_set_digest() to set the digest type for PKCS#7
1942 digestedData type. Add additional code to correctly generate the
1943 digestedData type and add support for this type in PKCS7 initialization
1947 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1948 structure of type "other".
1951 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1952 sure the loop does correctly stop and breaking ("division by zero")
1953 modulus operations are not performed. The (pre-generated) prime
1954 table crypto/bn/bn_prime.h was already correct, but it could not be
1955 re-generated on some platforms because of the "division by zero"
1956 situation in the script.
1957 [Ralf S. Engelschall]
1959 *) Update support for ECC-based TLS ciphersuites according to
1960 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1961 SHA-1 now is only used for "small" curves (where the
1962 representation of a field element takes up to 24 bytes); for
1963 larger curves, the field element resulting from ECDH is directly
1964 used as premaster secret.
1965 [Douglas Stebila (Sun Microsystems Laboratories)]
1967 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1968 curve secp160r1 to the tests.
1969 [Douglas Stebila (Sun Microsystems Laboratories)]
1971 *) Add the possibility to load symbols globally with DSO.
1972 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1974 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1975 control of the error stack.
1978 *) Add support for STORE in ENGINE.
1981 *) Add the STORE type. The intention is to provide a common interface
1982 to certificate and key stores, be they simple file-based stores, or
1983 HSM-type store, or LDAP stores, or...
1984 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1987 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1988 pass a list of arguments to any function as well as provide a way
1989 for a function to pass data back to the caller.
1992 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1993 works like BUF_strdup() but can be used to duplicate a portion of
1994 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1998 *) Add the function sk_find_ex() which works like sk_find(), but will
1999 return an index to an element even if an exact match couldn't be
2000 found. The index is guaranteed to point at the element where the
2001 searched-for key would be inserted to preserve sorting order.
2004 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2005 takes an extra flags argument for optional functionality. Currently,
2006 the following flags are defined:
2008 OBJ_BSEARCH_VALUE_ON_NOMATCH
2009 This one gets OBJ_bsearch_ex() to return a pointer to the first
2010 element where the comparing function returns a negative or zero
2013 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2014 This one gets OBJ_bsearch_ex() to return a pointer to the first
2015 element where the comparing function returns zero. This is useful
2016 if there are more than one element where the comparing function
2020 *) Make it possible to create self-signed certificates with 'openssl ca'
2021 in such a way that the self-signed certificate becomes part of the
2022 CA database and uses the same mechanisms for serial number generation
2023 as all other certificate signing. The new flag '-selfsign' enables
2024 this functionality. Adapt CA.sh and CA.pl.in.
2027 *) Add functionality to check the public key of a certificate request
2028 against a given private. This is useful to check that a certificate
2029 request can be signed by that key (self-signing).
2032 *) Make it possible to have multiple active certificates with the same
2033 subject in the CA index file. This is done only if the keyword
2034 'unique_subject' is set to 'no' in the main CA section (default
2035 if 'CA_default') of the configuration file. The value is saved
2036 with the database itself in a separate index attribute file,
2037 named like the index file with '.attr' appended to the name.
2040 *) Generate muti valued AVAs using '+' notation in config files for
2044 *) Support for nameConstraints certificate extension.
2047 *) Support for policyConstraints certificate extension.
2050 *) Support for policyMappings certificate extension.
2053 *) Make sure the default DSA_METHOD implementation only uses its
2054 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2055 and change its own handlers to be NULL so as to remove unnecessary
2056 indirection. This lets alternative implementations fallback to the
2057 default implementation more easily.
2060 *) Support for directoryName in GeneralName related extensions
2064 *) Make it possible to link applications using Makefile.shared.
2065 Make that possible even when linking against static libraries!
2068 *) Support for single pass processing for S/MIME signing. This now
2069 means that S/MIME signing can be done from a pipe, in addition
2070 cleartext signing (multipart/signed type) is effectively streaming
2071 and the signed data does not need to be all held in memory.
2073 This is done with a new flag PKCS7_STREAM. When this flag is set
2074 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2075 is done after the data is output (and digests calculated) in
2076 SMIME_write_PKCS7().
2079 *) Add full support for -rpath/-R, both in shared libraries and
2080 applications, at least on the platforms where it's known how
2084 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2085 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2086 will now compute a table of multiples of the generator that
2087 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2088 faster (notably in the case of a single point multiplication,
2089 scalar * generator).
2090 [Nils Larsch, Bodo Moeller]
2092 *) IPv6 support for certificate extensions. The various extensions
2093 which use the IP:a.b.c.d can now take IPv6 addresses using the
2094 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2098 *) Added an ENGINE that implements RSA by performing private key
2099 exponentiations with the GMP library. The conversions to and from
2100 GMP's mpz_t format aren't optimised nor are any montgomery forms
2101 cached, and on x86 it appears OpenSSL's own performance has caught up.
2102 However there are likely to be other architectures where GMP could
2103 provide a boost. This ENGINE is not built in by default, but it can be
2104 specified at Configure time and should be accompanied by the necessary
2105 linker additions, eg;
2106 ./config -DOPENSSL_USE_GMP -lgmp
2109 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2110 testing availability of engines with "-t" - the old behaviour is
2111 produced by increasing the feature's verbosity with "-tt".
2114 *) ECDSA routines: under certain error conditions uninitialized BN objects
2115 could be freed. Solution: make sure initialization is performed early
2116 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2120 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2121 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2122 software implementations. For DSA and DH, parameter generation can
2123 also be overriden by providing the appropriate method callbacks.
2126 *) Change the "progress" mechanism used in key-generation and
2127 primality testing to functions that take a new BN_GENCB pointer in
2128 place of callback/argument pairs. The new API functions have "_ex"
2129 postfixes and the older functions are reimplemented as wrappers for
2130 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2131 declarations of the old functions to help (graceful) attempts to
2132 migrate to the new functions. Also, the new key-generation API
2133 functions operate on a caller-supplied key-structure and return
2134 success/failure rather than returning a key or NULL - this is to
2135 help make "keygen" another member function of RSA_METHOD etc.
2137 Example for using the new callback interface:
2139 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2143 BN_GENCB_set(&my_cb, my_callback, my_arg);
2145 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2146 /* For the meaning of a, b in calls to my_callback(), see the
2147 * documentation of the function that calls the callback.
2148 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2149 * my_callback should return 1 if it wants BN_is_prime_ex()
2150 * to continue, or 0 to stop.
2155 *) Change the ZLIB compression method to be stateful, and make it
2156 available to TLS with the number defined in
2157 draft-ietf-tls-compression-04.txt.
2160 *) Add the ASN.1 structures and functions for CertificatePair, which
2161 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2163 CertificatePair ::= SEQUENCE {
2164 forward [0] Certificate OPTIONAL,
2165 reverse [1] Certificate OPTIONAL,
2166 -- at least one of the pair shall be present -- }
2168 Also implement the PEM functions to read and write certificate
2169 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2171 This needed to be defined, mostly for the sake of the LDAP
2172 attribute crossCertificatePair, but may prove useful elsewhere as
2176 *) Make it possible to inhibit symlinking of shared libraries in
2177 Makefile.shared, for Cygwin's sake.
2180 *) Extend the BIGNUM API by creating a function
2181 void BN_set_negative(BIGNUM *a, int neg);
2182 and a macro that behave like
2183 int BN_is_negative(const BIGNUM *a);
2185 to avoid the need to access 'a->neg' directly in applications.
2188 *) Implement fast modular reduction for pseudo-Mersenne primes
2189 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2190 EC_GROUP_new_curve_GFp() will now automatically use this
2192 [Nils Larsch <nla@trustcenter.de>]
2194 *) Add new lock type (CRYPTO_LOCK_BN).
2197 *) Change the ENGINE framework to automatically load engines
2198 dynamically from specific directories unless they could be
2199 found to already be built in or loaded. Move all the
2200 current engines except for the cryptodev one to a new
2202 The engines in engines/ are built as shared libraries if
2203 the "shared" options was given to ./Configure or ./config.
2204 Otherwise, they are inserted in libcrypto.a.
2205 /usr/local/ssl/engines is the default directory for dynamic
2206 engines, but that can be overriden at configure time through
2207 the usual use of --prefix and/or --openssldir, and at run
2208 time with the environment variable OPENSSL_ENGINES.
2209 [Geoff Thorpe and Richard Levitte]
2211 *) Add Makefile.shared, a helper makefile to build shared
2212 libraries. Addapt Makefile.org.
2215 *) Add version info to Win32 DLLs.
2216 [Peter 'Luna' Runestig" <peter@runestig.com>]
2218 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2219 can be added using this API to created arbitrary PKCS#12
2220 files while avoiding the low level API.
2222 New options to PKCS12_create(), key or cert can be NULL and
2223 will then be omitted from the output file. The encryption
2224 algorithm NIDs can be set to -1 for no encryption, the mac
2225 iteration count can be set to 0 to omit the mac.
2227 Enhance pkcs12 utility by making the -nokeys and -nocerts
2228 options work when creating a PKCS#12 file. New option -nomac
2229 to omit the mac, NONE can be set for an encryption algorithm.
2230 New code is modified to use the enhanced PKCS12_create()
2231 instead of the low level API.
2234 *) Extend ASN1 encoder to support indefinite length constructed
2235 encoding. This can output sequences tags and octet strings in
2236 this form. Modify pk7_asn1.c to support indefinite length
2237 encoding. This is experimental and needs additional code to
2238 be useful, such as an ASN1 bio and some enhanced streaming
2241 Extend template encode functionality so that tagging is passed
2242 down to the template encoder.
2245 *) Let 'openssl req' fail if an argument to '-newkey' is not
2246 recognized instead of using RSA as a default.
2249 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2250 As these are not official, they are not included in "ALL";
2251 the "ECCdraft" ciphersuite group alias can be used to select them.
2252 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2254 *) Add ECDH engine support.
2255 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2257 *) Add ECDH in new directory crypto/ecdh/.
2258 [Douglas Stebila (Sun Microsystems Laboratories)]
2260 *) Let BN_rand_range() abort with an error after 100 iterations
2261 without success (which indicates a broken PRNG).
2264 *) Change BN_mod_sqrt() so that it verifies that the input value
2265 is really the square of the return value. (Previously,
2266 BN_mod_sqrt would show GIGO behaviour.)
2269 *) Add named elliptic curves over binary fields from X9.62, SECG,
2270 and WAP/WTLS; add OIDs that were still missing.
2272 [Sheueling Chang Shantz and Douglas Stebila
2273 (Sun Microsystems Laboratories)]
2275 *) Extend the EC library for elliptic curves over binary fields
2276 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2279 EC_GF2m_simple_method
2283 EC_GROUP_new_curve_GF2m
2284 EC_GROUP_set_curve_GF2m
2285 EC_GROUP_get_curve_GF2m
2286 EC_POINT_set_affine_coordinates_GF2m
2287 EC_POINT_get_affine_coordinates_GF2m
2288 EC_POINT_set_compressed_coordinates_GF2m
2290 Point compression for binary fields is disabled by default for
2291 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2294 As binary polynomials are represented as BIGNUMs, various members
2295 of the EC_GROUP and EC_POINT data structures can be shared
2296 between the implementations for prime fields and binary fields;
2297 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2298 are essentially identical to their ..._GFp counterparts.
2299 (For simplicity, the '..._GFp' prefix has been dropped from
2300 various internal method names.)
2302 An internal 'field_div' method (similar to 'field_mul' and
2303 'field_sqr') has been added; this is used only for binary fields.
2305 [Sheueling Chang Shantz and Douglas Stebila
2306 (Sun Microsystems Laboratories)]
2308 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2309 through methods ('mul', 'precompute_mult').
2311 The generic implementations (now internally called 'ec_wNAF_mul'
2312 and 'ec_wNAF_precomputed_mult') remain the default if these
2313 methods are undefined.
2315 [Sheueling Chang Shantz and Douglas Stebila
2316 (Sun Microsystems Laboratories)]
2318 *) New function EC_GROUP_get_degree, which is defined through
2319 EC_METHOD. For curves over prime fields, this returns the bit
2320 length of the modulus.
2322 [Sheueling Chang Shantz and Douglas Stebila
2323 (Sun Microsystems Laboratories)]
2325 *) New functions EC_GROUP_dup, EC_POINT_dup.
2326 (These simply call ..._new and ..._copy).
2328 [Sheueling Chang Shantz and Douglas Stebila
2329 (Sun Microsystems Laboratories)]
2331 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2332 Polynomials are represented as BIGNUMs (where the sign bit is not
2333 used) in the following functions [macros]:
2336 BN_GF2m_sub [= BN_GF2m_add]
2337 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2338 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2339 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2341 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2342 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2343 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2344 BN_GF2m_cmp [= BN_ucmp]
2346 (Note that only the 'mod' functions are actually for fields GF(2^m).
2347 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2349 For some functions, an the irreducible polynomial defining a
2350 field can be given as an 'unsigned int[]' with strictly
2351 decreasing elements giving the indices of those bits that are set;
2352 i.e., p[] represents the polynomial
2353 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2355 p[0] > p[1] > ... > p[k] = 0.
2356 This applies to the following functions:
2361 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2362 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2364 BN_GF2m_mod_sqrt_arr
2365 BN_GF2m_mod_solve_quad_arr
2369 Conversion can be performed by the following functions:
2374 bntest.c has additional tests for binary polynomial arithmetic.
2376 Two implementations for BN_GF2m_mod_div() are available.
2377 The default algorithm simply uses BN_GF2m_mod_inv() and
2378 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2379 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2380 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2382 [Sheueling Chang Shantz and Douglas Stebila
2383 (Sun Microsystems Laboratories)]
2385 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2386 functionality is disabled at compile-time.
2387 [Douglas Stebila <douglas.stebila@sun.com>]
2389 *) Change default behaviour of 'openssl asn1parse' so that more
2390 information is visible when viewing, e.g., a certificate:
2392 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2393 mode the content of non-printable OCTET STRINGs is output in a
2394 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2395 avoid the appearance of a printable string.
2396 [Nils Larsch <nla@trustcenter.de>]
2398 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2400 EC_GROUP_set_asn1_flag()
2401 EC_GROUP_get_asn1_flag()
2402 EC_GROUP_set_point_conversion_form()
2403 EC_GROUP_get_point_conversion_form()
2404 These control ASN1 encoding details:
2405 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2406 has been set to OPENSSL_EC_NAMED_CURVE.
2407 - Points are encoded in uncompressed form by default; options for
2408 asn1_for are as for point2oct, namely
2409 POINT_CONVERSION_COMPRESSED
2410 POINT_CONVERSION_UNCOMPRESSED
2411 POINT_CONVERSION_HYBRID
2413 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2416 EC_GROUP_get0_seed()
2417 EC_GROUP_get_seed_len()
2418 This is used only for ASN1 purposes (so far).
2419 [Nils Larsch <nla@trustcenter.de>]
2421 *) Add 'field_type' member to EC_METHOD, which holds the NID
2422 of the appropriate field type OID. The new function
2423 EC_METHOD_get_field_type() returns this value.
2424 [Nils Larsch <nla@trustcenter.de>]
2429 EC_POINT_point2hex()
2430 EC_POINT_hex2point()
2431 providing useful interfaces to EC_POINT_point2oct() and
2432 EC_POINT_oct2point().
2433 [Nils Larsch <nla@trustcenter.de>]
2435 *) Change internals of the EC library so that the functions
2436 EC_GROUP_set_generator()
2437 EC_GROUP_get_generator()
2438 EC_GROUP_get_order()
2439 EC_GROUP_get_cofactor()
2440 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2441 to methods, which would lead to unnecessary code duplication when
2442 adding different types of curves.
2443 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2445 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2446 arithmetic, and such that modified wNAFs are generated
2447 (which avoid length expansion in many cases).
2450 *) Add a function EC_GROUP_check_discriminant() (defined via
2451 EC_METHOD) that verifies that the curve discriminant is non-zero.
2453 Add a function EC_GROUP_check() that makes some sanity tests
2454 on a EC_GROUP, its generator and order. This includes
2455 EC_GROUP_check_discriminant().
2456 [Nils Larsch <nla@trustcenter.de>]
2458 *) Add ECDSA in new directory crypto/ecdsa/.
2460 Add applications 'openssl ecparam' and 'openssl ecdsa'
2461 (these are based on 'openssl dsaparam' and 'openssl dsa').
2463 ECDSA support is also included in various other files across the
2464 library. Most notably,
2465 - 'openssl req' now has a '-newkey ecdsa:file' option;
2466 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2467 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2468 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2469 them suitable for ECDSA where domain parameters must be
2470 extracted before the specific public key;
2471 - ECDSA engine support has been added.
2472 [Nils Larsch <nla@trustcenter.de>]
2474 *) Include some named elliptic curves, and add OIDs from X9.62,
2475 SECG, and WAP/WTLS. Each curve can be obtained from the new
2477 EC_GROUP_new_by_curve_name(),
2478 and the list of available named curves can be obtained with
2479 EC_get_builtin_curves().
2480 Also add a 'curve_name' member to EC_GROUP objects, which can be
2482 EC_GROUP_set_curve_name()
2483 EC_GROUP_get_curve_name()
2484 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2486 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2487 was actually never needed) and in BN_mul(). The removal in BN_mul()
2488 required a small change in bn_mul_part_recursive() and the addition
2489 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2490 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2491 bn_sub_words() and bn_add_words() except they take arrays with
2495 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2497 *) Cleanse PEM buffers before freeing them since they may contain
2499 [Benjamin Bennett <ben@psc.edu>]
2501 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2502 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2503 authentication-only ciphersuites.
2506 *) Since AES128 and AES256 share a single mask bit in the logic of
2507 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2508 kludge to work properly if AES128 is available and AES256 isn't.
2511 *) Expand security boundary to match 1.1.1 module.
2514 *) Remove redundant features: hash file source, editing of test vectors
2515 modify fipsld to use external fips_premain.c signature.
2518 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2519 run algorithm test programs.
2522 *) Make algorithm test programs more tolerant of whitespace.
2525 *) Have SSL/TLS server implementation tolerate "mismatched" record
2526 protocol version while receiving ClientHello even if the
2527 ClientHello is fragmented. (The server can't insist on the
2528 particular protocol version it has chosen before the ServerHello
2529 message has informed the client about his choice.)
2532 *) Load error codes if they are not already present instead of using a
2533 static variable. This allows them to be cleanly unloaded and reloaded.
2536 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2538 *) Introduce limits to prevent malicious keys being able to
2539 cause a denial of service. (CVE-2006-2940)
2540 [Steve Henson, Bodo Moeller]
2542 *) Fix ASN.1 parsing of certain invalid structures that can result
2543 in a denial of service. (CVE-2006-2937) [Steve Henson]
2545 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2546 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2548 *) Fix SSL client code which could crash if connecting to a
2549 malicious SSLv2 server. (CVE-2006-4343)
2550 [Tavis Ormandy and Will Drewry, Google Security Team]
2552 *) Change ciphersuite string processing so that an explicit
2553 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2554 will no longer include "AES128-SHA"), and any other similar
2555 ciphersuite (same bitmap) from *other* protocol versions (so that
2556 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2557 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2558 changes from 0.9.8b and 0.9.8d.
2561 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2563 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2564 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2566 *) Change the Unix randomness entropy gathering to use poll() when
2567 possible instead of select(), since the latter has some
2568 undesirable limitations.
2569 [Darryl Miles via Richard Levitte and Bodo Moeller]
2571 *) Disable rogue ciphersuites:
2573 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2574 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2575 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2577 The latter two were purportedly from
2578 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2581 Also deactive the remaining ciphersuites from
2582 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2583 unofficial, and the ID has long expired.
2586 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2587 dual-core machines) and other potential thread-safety issues.
2590 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2592 *) Adapt fipsld and the build system to link against the validated FIPS
2593 module in FIPS mode.
2596 *) Fixes for VC++ 2005 build under Windows.
2599 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2600 from a Windows bash shell such as MSYS. It is autodetected from the
2601 "config" script when run from a VC++ environment. Modify standard VC++
2602 build to use fipscanister.o from the GNU make build.
2605 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2607 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2608 The value now differs depending on if you build for FIPS or not.
2609 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2610 safely run with a non-FIPSed libcrypto, as it may crash because of
2611 the difference induced by this change.
2614 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2616 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2617 (part of SSL_OP_ALL). This option used to disable the
2618 countermeasure against man-in-the-middle protocol-version
2619 rollback in the SSL 2.0 server implementation, which is a bad
2620 idea. (CVE-2005-2969)
2622 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2623 for Information Security, National Institute of Advanced Industrial
2624 Science and Technology [AIST], Japan)]
2626 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2627 mainly for FIPS compliance and not fully integrated at this stage.
2630 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2631 the exponentiation using a fixed-length exponent. (Otherwise,
2632 the information leaked through timing could expose the secret key
2633 after many signatures; cf. Bleichenbacher's attack on DSA with
2637 *) Make a new fixed-window mod_exp implementation the default for
2638 RSA, DSA, and DH private-key operations so that the sequence of
2639 squares and multiplies and the memory access pattern are
2640 independent of the particular secret key. This will mitigate
2641 cache-timing and potential related attacks.
2643 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2644 and this is automatically used by BN_mod_exp_mont() if the new flag
2645 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2646 will use this BN flag for private exponents unless the flag
2647 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2648 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2650 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2652 *) Change the client implementation for SSLv23_method() and
2653 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2654 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2655 (Previously, the SSL 2.0 backwards compatible Client Hello
2656 message format would be used even with SSL_OP_NO_SSLv2.)
2659 *) Add support for smime-type MIME parameter in S/MIME messages which some
2663 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2664 a threadsafe manner. Modify rsa code to use new function and add calls
2665 to dsa and dh code (which had race conditions before).
2668 *) Include the fixed error library code in the C error file definitions
2669 instead of fixing them up at runtime. This keeps the error code
2670 structures constant.
2673 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2675 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2678 *) Fixes for newer kerberos headers. NB: the casts are needed because
2679 the 'length' field is signed on one version and unsigned on another
2680 with no (?) obvious way to tell the difference, without these VC++
2681 complains. Also the "definition" of FAR (blank) is no longer included
2682 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2683 some needed definitions.
2686 *) Undo Cygwin change.
2689 *) Added support for proxy certificates according to RFC 3820.
2690 Because they may be a security thread to unaware applications,
2691 they must be explicitely allowed in run-time. See
2692 docs/HOWTO/proxy_certificates.txt for further information.
2695 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2697 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2698 server and client random values. Previously
2699 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2700 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2702 This change has negligible security impact because:
2704 1. Server and client random values still have 24 bytes of pseudo random
2707 2. Server and client random values are sent in the clear in the initial
2710 3. The master secret is derived using the premaster secret (48 bytes in
2711 size for static RSA ciphersuites) as well as client server and random
2714 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2717 [Stephen Henson, reported by UK NISCC]
2719 *) Use Windows randomness collection on Cygwin.
2722 *) Fix hang in EGD/PRNGD query when communication socket is closed
2723 prematurely by EGD/PRNGD.
2724 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2726 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2729 *) Back-port of selected performance improvements from development
2730 branch, as well as improved support for PowerPC platforms.
2733 *) Add lots of checks for memory allocation failure, error codes to indicate
2734 failure and freeing up memory if a failure occurs.
2735 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2737 *) Add new -passin argument to dgst.
2740 *) Perform some character comparisons of different types in X509_NAME_cmp:
2741 this is needed for some certificates that reencode DNs into UTF8Strings
2742 (in violation of RFC3280) and can't or wont issue name rollover
2746 *) Make an explicit check during certificate validation to see that
2747 the CA setting in each certificate on the chain is correct. As a
2748 side effect always do the following basic checks on extensions,
2749 not just when there's an associated purpose to the check:
2751 - if there is an unhandled critical extension (unless the user
2752 has chosen to ignore this fault)
2753 - if the path length has been exceeded (if one is set at all)
2754 - that certain extensions fit the associated purpose (if one has
2758 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2760 *) Avoid a race condition when CRLs are checked in a multi threaded
2761 environment. This would happen due to the reordering of the revoked
2762 entries during signature checking and serial number lookup. Now the
2763 encoding is cached and the serial number sort performed under a lock.
2764 Add new STACK function sk_is_sorted().
2767 *) Add Delta CRL to the extension code.
2770 *) Various fixes to s3_pkt.c so alerts are sent properly.
2771 [David Holmes <d.holmes@f5.com>]
2773 *) Reduce the chances of duplicate issuer name and serial numbers (in
2774 violation of RFC3280) using the OpenSSL certificate creation utilities.
2775 This is done by creating a random 64 bit value for the initial serial
2776 number when a serial number file is created or when a self signed
2777 certificate is created using 'openssl req -x509'. The initial serial
2778 number file is created using 'openssl x509 -next_serial' in CA.pl
2779 rather than being initialized to 1.
2782 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2784 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2785 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2786 [Joe Orton, Steve Henson]
2788 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2790 [Joe Orton, Steve Henson]
2792 *) Make it possible to have multiple active certificates with the same
2793 subject in the CA index file. This is done only if the keyword
2794 'unique_subject' is set to 'no' in the main CA section (default
2795 if 'CA_default') of the configuration file. The value is saved
2796 with the database itself in a separate index attribute file,
2797 named like the index file with '.attr' appended to the name.
2800 *) X509 verify fixes. Disable broken certificate workarounds when
2801 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2802 keyUsage extension present. Don't accept CRLs with unhandled critical
2803 extensions: since verify currently doesn't process CRL extensions this
2804 rejects a CRL with *any* critical extensions. Add new verify error codes
2808 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2809 A clarification of RFC2560 will require the use of OCTET STRINGs and
2810 some implementations cannot handle the current raw format. Since OpenSSL
2811 copies and compares OCSP nonces as opaque blobs without any attempt at
2812 parsing them this should not create any compatibility issues.
2815 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2816 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2817 this HMAC (and other) operations are several times slower than OpenSSL
2821 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2822 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2824 *) Use the correct content when signing type "other".
2827 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2829 *) Fix various bugs revealed by running the NISCC test suite:
2831 Stop out of bounds reads in the ASN1 code when presented with
2832 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2834 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2836 If verify callback ignores invalid public key errors don't try to check
2837 certificate signature with the NULL public key.
2841 *) New -ignore_err option in ocsp application to stop the server
2842 exiting on the first error in a request.
2845 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2846 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2850 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2851 extra data after the compression methods not only for TLS 1.0
2852 but also for SSL 3.0 (as required by the specification).
2853 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2855 *) Change X509_certificate_type() to mark the key as exported/exportable
2856 when it's 512 *bits* long, not 512 bytes.
2859 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2860 blocks during encryption.
2863 *) Various fixes to base64 BIO and non blocking I/O. On write
2864 flushes were not handled properly if the BIO retried. On read
2865 data was not being buffered properly and had various logic bugs.
2866 This also affects blocking I/O when the data being decoded is a
2870 *) Various S/MIME bugfixes and compatibility changes:
2871 output correct application/pkcs7 MIME type if
2872 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2873 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2874 of files as .eml work). Correctly handle very long lines in MIME
2878 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2880 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2881 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2882 a protocol version number mismatch like a decryption error
2883 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2886 *) Turn on RSA blinding by default in the default implementation
2887 to avoid a timing attack. Applications that don't want it can call
2888 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2889 They would be ill-advised to do so in most cases.
2890 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2892 *) Change RSA blinding code so that it works when the PRNG is not
2893 seeded (in this case, the secret RSA exponent is abused as
2894 an unpredictable seed -- if it is not unpredictable, there
2895 is no point in blinding anyway). Make RSA blinding thread-safe
2896 by remembering the creator's thread ID in rsa->blinding and
2897 having all other threads use local one-time blinding factors
2898 (this requires more computation than sharing rsa->blinding, but
2899 avoids excessive locking; and if an RSA object is not shared
2900 between threads, blinding will still be very fast).
2903 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2904 ENGINE as defaults for all supported algorithms irrespective of
2905 the 'flags' parameter. 'flags' is now honoured, so applications
2906 should make sure they are passing it correctly.
2909 *) Target "mingw" now allows native Windows code to be generated in
2910 the Cygwin environment as well as with the MinGW compiler.
2913 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2915 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2916 via timing by performing a MAC computation even if incorrrect
2917 block cipher padding has been found. This is a countermeasure
2918 against active attacks where the attacker has to distinguish
2919 between bad padding and a MAC verification error. (CVE-2003-0078)
2921 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2922 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2923 Martin Vuagnoux (EPFL, Ilion)]
2925 *) Make the no-err option work as intended. The intention with no-err
2926 is not to have the whole error stack handling routines removed from
2927 libcrypto, it's only intended to remove all the function name and
2928 reason texts, thereby removing some of the footprint that may not
2929 be interesting if those errors aren't displayed anyway.
2931 NOTE: it's still possible for any application or module to have it's
2932 own set of error texts inserted. The routines are there, just not
2933 used by default when no-err is given.
2936 *) Add support for FreeBSD on IA64.
2937 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2939 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2940 Kerberos function mit_des_cbc_cksum(). Before this change,
2941 the value returned by DES_cbc_cksum() was like the one from
2942 mit_des_cbc_cksum(), except the bytes were swapped.
2943 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2945 *) Allow an application to disable the automatic SSL chain building.
2946 Before this a rather primitive chain build was always performed in
2947 ssl3_output_cert_chain(): an application had no way to send the
2948 correct chain if the automatic operation produced an incorrect result.
2950 Now the chain builder is disabled if either:
2952 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2954 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2956 The reasoning behind this is that an application would not want the
2957 auto chain building to take place if extra chain certificates are
2958 present and it might also want a means of sending no additional
2959 certificates (for example the chain has two certificates and the
2963 *) Add the possibility to build without the ENGINE framework.
2964 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2966 *) Under Win32 gmtime() can return NULL: check return value in
2967 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2970 *) DSA routines: under certain error conditions uninitialized BN objects
2971 could be freed. Solution: make sure initialization is performed early
2972 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2973 Nils Larsch <nla@trustcenter.de> via PR#459)
2976 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2977 checked on reconnect on the client side, therefore session resumption
2978 could still fail with a "ssl session id is different" error. This
2979 behaviour is masked when SSL_OP_ALL is used due to
2980 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2981 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2982 followup to PR #377.
2985 *) IA-32 assembler support enhancements: unified ELF targets, support
2986 for SCO/Caldera platforms, fix for Cygwin shared build.
2989 *) Add support for FreeBSD on sparc64. As a consequence, support for
2990 FreeBSD on non-x86 processors is separate from x86 processors on
2991 the config script, much like the NetBSD support.
2992 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2994 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2996 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2999 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3000 code (06) was taken as the first octet of the session ID and the last
3001 octet was ignored consequently. As a result SSLv2 client side session
3002 caching could not have worked due to the session ID mismatch between
3004 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3008 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3009 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3013 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3014 seems that in spite of existing for more than a year, many application
3015 author have done nothing to provide the necessary callbacks, which
3016 means that this particular engine will not work properly anywhere.
3017 This is a very unfortunate situation which forces us, in the name
3018 of usability, to give the hw_ncipher.c a static lock, which is part
3020 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3021 appear in 0.9.8 or later. We EXPECT application authors to have
3022 dealt properly with this when 0.9.8 is released (unless we actually
3023 make such changes in the libcrypto locking code that changes will
3024 have to be made anyway).
3027 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3028 octets have been read, EOF or an error occurs. Without this change
3029 some truncated ASN1 structures will not produce an error.
3032 *) Disable Heimdal support, since it hasn't been fully implemented.
3033 Still give the possibility to force the use of Heimdal, but with
3034 warnings and a request that patches get sent to openssl-dev.
3037 *) Add the VC-CE target, introduce the WINCE sysname, and add
3038 INSTALL.WCE and appropriate conditionals to make it build.
3039 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3041 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3042 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3043 edit numbers of the version.
3044 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3046 *) Introduce safe string copy and catenation functions
3047 (BUF_strlcpy() and BUF_strlcat()).
3048 [Ben Laurie (CHATS) and Richard Levitte]
3050 *) Avoid using fixed-size buffers for one-line DNs.
3051 [Ben Laurie (CHATS)]
3053 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3054 resizing buffers containing secrets, and use where appropriate.
3055 [Ben Laurie (CHATS)]
3057 *) Avoid using fixed size buffers for configuration file location.
3058 [Ben Laurie (CHATS)]
3060 *) Avoid filename truncation for various CA files.
3061 [Ben Laurie (CHATS)]
3063 *) Use sizeof in preference to magic numbers.
3064 [Ben Laurie (CHATS)]
3066 *) Avoid filename truncation in cert requests.
3067 [Ben Laurie (CHATS)]
3069 *) Add assertions to check for (supposedly impossible) buffer
3071 [Ben Laurie (CHATS)]
3073 *) Don't cache truncated DNS entries in the local cache (this could
3074 potentially lead to a spoofing attack).
3075 [Ben Laurie (CHATS)]
3077 *) Fix various buffers to be large enough for hex/decimal
3078 representations in a platform independent manner.
3079 [Ben Laurie (CHATS)]
3081 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3082 resizing buffers containing secrets, and use where appropriate.
3083 [Ben Laurie (CHATS)]
3085 *) Add BIO_indent() to avoid much slightly worrying code to do
3087 [Ben Laurie (CHATS)]
3089 *) Convert sprintf()/BIO_puts() to BIO_printf().
3090 [Ben Laurie (CHATS)]
3092 *) buffer_gets() could terminate with the buffer only half
3094 [Ben Laurie (CHATS)]
3096 *) Add assertions to prevent user-supplied crypto functions from
3097 overflowing internal buffers by having large block sizes, etc.
3098 [Ben Laurie (CHATS)]
3100 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3102 [Ben Laurie (CHATS)]
3104 *) Eliminate unused copy of key in RC4.
3105 [Ben Laurie (CHATS)]
3107 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3108 [Ben Laurie (CHATS)]
3110 *) Fix off-by-one error in EGD path.
3111 [Ben Laurie (CHATS)]
3113 *) If RANDFILE path is too long, ignore instead of truncating.
3114 [Ben Laurie (CHATS)]
3116 *) Eliminate unused and incorrectly sized X.509 structure
3118 [Ben Laurie (CHATS)]
3120 *) Eliminate unused and dangerous function knumber().
3121 [Ben Laurie (CHATS)]
3123 *) Eliminate unused and dangerous structure, KSSL_ERR.
3124 [Ben Laurie (CHATS)]
3126 *) Protect against overlong session ID context length in an encoded
3127 session object. Since these are local, this does not appear to be
3129 [Ben Laurie (CHATS)]
3131 *) Change from security patch (see 0.9.6e below) that did not affect
3132 the 0.9.6 release series:
3134 Remote buffer overflow in SSL3 protocol - an attacker could
3135 supply an oversized master key in Kerberos-enabled versions.
3137 [Ben Laurie (CHATS)]
3139 *) Change the SSL kerb5 codes to match RFC 2712.
3142 *) Make -nameopt work fully for req and add -reqopt switch.
3143 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3145 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3146 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3148 *) Make sure tests can be performed even if the corresponding algorithms
3149 have been removed entirely. This was also the last step to make
3150 OpenSSL compilable with DJGPP under all reasonable conditions.
3151 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3153 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3154 to allow version independent disabling of normally unselected ciphers,
3155 which may be activated as a side-effect of selecting a single cipher.
3157 (E.g., cipher list string "RSA" enables ciphersuites that are left
3158 out of "ALL" because they do not provide symmetric encryption.
3159 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3160 [Lutz Jaenicke, Bodo Moeller]
3162 *) Add appropriate support for separate platform-dependent build
3163 directories. The recommended way to make a platform-dependent
3164 build directory is the following (tested on Linux), maybe with
3167 # Place yourself outside of the OpenSSL source tree. In
3168 # this example, the environment variable OPENSSL_SOURCE
3169 # is assumed to contain the absolute OpenSSL source directory.
3170 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3171 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3172 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3173 mkdir -p `dirname $F`
3174 ln -s $OPENSSL_SOURCE/$F $F
3177 To be absolutely sure not to disturb the source tree, a "make clean"
3178 is a good thing. If it isn't successfull, don't worry about it,
3179 it probably means the source directory is very clean.
3182 *) Make sure any ENGINE control commands make local copies of string
3183 pointers passed to them whenever necessary. Otherwise it is possible
3184 the caller may have overwritten (or deallocated) the original string
3185 data when a later ENGINE operation tries to use the stored values.
3186 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3188 *) Improve diagnostics in file reading and command-line digests.
3189 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3191 *) Add AES modes CFB and OFB to the object database. Correct an
3192 error in AES-CFB decryption.
3195 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3196 allows existing EVP_CIPHER_CTX structures to be reused after
3197 calling EVP_*Final(). This behaviour is used by encryption
3198 BIOs and some applications. This has the side effect that
3199 applications must explicitly clean up cipher contexts with
3200 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3203 *) Check the values of dna and dnb in bn_mul_recursive before calling
3204 bn_mul_comba (a non zero value means the a or b arrays do not contain
3205 n2 elements) and fallback to bn_mul_normal if either is not zero.
3208 *) Fix escaping of non-ASCII characters when using the -subj option
3209 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3212 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3213 form for "surname", serialNumber has no short form.
3214 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3215 therefore remove "mail" short name for "internet 7".
3216 The OID for unique identifiers in X509 certificates is
3217 x500UniqueIdentifier, not uniqueIdentifier.
3218 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3221 *) Add an "init" command to the ENGINE config module and auto initialize
3222 ENGINEs. Without any "init" command the ENGINE will be initialized
3223 after all ctrl commands have been executed on it. If init=1 the
3224 ENGINE is initailized at that point (ctrls before that point are run
3225 on the uninitialized ENGINE and after on the initialized one). If
3226 init=0 then the ENGINE will not be iniatialized at all.
3229 *) Fix the 'app_verify_callback' interface so that the user-defined
3230 argument is actually passed to the callback: In the
3231 SSL_CTX_set_cert_verify_callback() prototype, the callback
3232 declaration has been changed from
3235 int (*cb)(X509_STORE_CTX *,void *);
3236 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3237 i=s->ctx->app_verify_callback(&ctx)
3238 has been changed into
3239 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3241 To update applications using SSL_CTX_set_cert_verify_callback(),
3242 a dummy argument can be added to their callback functions.
3243 [D. K. Smetters <smetters@parc.xerox.com>]
3245 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3246 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3248 *) Add and OPENSSL_LOAD_CONF define which will cause
3249 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3250 This allows older applications to transparently support certain
3251 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3252 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3253 load the config file and OPENSSL_add_all_algorithms_conf() which will
3254 always load it have also been added.
3257 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3258 Adjust NIDs and EVP layer.
3259 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3261 *) Config modules support in openssl utility.
3263 Most commands now load modules from the config file,
3264 though in a few (such as version) this isn't done
3265 because it couldn't be used for anything.
3267 In the case of ca and req the config file used is
3268 the same as the utility itself: that is the -config
3269 command line option can be used to specify an
3273 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3274 use "openssl_conf" if filename is NULL use default openssl config file.
3277 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3278 config section name. Add a new flag to tolerate a missing config file
3279 and move code to CONF_modules_load_file().
3282 *) Support for crypto accelerator cards from Accelerated Encryption
3283 Processing, www.aep.ie. (Use engine 'aep')
3284 The support was copied from 0.9.6c [engine] and adapted/corrected
3285 to work with the new engine framework.
3286 [AEP Inc. and Richard Levitte]
3288 *) Support for SureWare crypto accelerator cards from Baltimore
3289 Technologies. (Use engine 'sureware')
3290 The support was copied from 0.9.6c [engine] and adapted
3291 to work with the new engine framework.
3294 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3295 make the newer ENGINE framework commands for the CHIL engine work.
3296 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3298 *) Make it possible to produce shared libraries on ReliantUNIX.
3299 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3301 *) Add the configuration target debug-linux-ppro.
3302 Make 'openssl rsa' use the general key loading routines
3303 implemented in apps.c, and make those routines able to
3304 handle the key format FORMAT_NETSCAPE and the variant
3306 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3308 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3309 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3311 *) Add -keyform to rsautl, and document -engine.
3312 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3314 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3315 BIO_R_NO_SUCH_FILE error code rather than the generic
3316 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3319 *) Add new functions
3321 ERR_peek_last_error_line
3322 ERR_peek_last_error_line_data.
3323 These are similar to
3326 ERR_peek_error_line_data,
3327 but report on the latest error recorded rather than the first one
3328 still in the error queue.
3329 [Ben Laurie, Bodo Moeller]
3331 *) default_algorithms option in ENGINE config module. This allows things
3333 default_algorithms = ALL
3334 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3337 *) Prelminary ENGINE config module.
3340 *) New experimental application configuration code.
3343 *) Change the AES code to follow the same name structure as all other
3344 symmetric ciphers, and behave the same way. Move everything to
3345 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3346 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3348 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3349 [Ben Laurie and Theo de Raadt]
3351 *) Add option to output public keys in req command.
3352 [Massimiliano Pala madwolf@openca.org]
3354 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3355 (up to about 10% better than before for P-192 and P-224).
3358 *) New functions/macros
3360 SSL_CTX_set_msg_callback(ctx, cb)
3361 SSL_CTX_set_msg_callback_arg(ctx, arg)
3362 SSL_set_msg_callback(ssl, cb)
3363 SSL_set_msg_callback_arg(ssl, arg)
3365 to request calling a callback function
3367 void cb(int write_p, int version, int content_type,
3368 const void *buf, size_t len, SSL *ssl, void *arg)
3370 whenever a protocol message has been completely received
3371 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3372 protocol version according to which the SSL library interprets
3373 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3374 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3375 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3376 specification (change_cipher_spec(20), alert(21), handshake(22)).
3377 'buf' and 'len' point to the actual message, 'ssl' to the
3378 SSL object, and 'arg' is the application-defined value set by
3379 SSL[_CTX]_set_msg_callback_arg().
3381 'openssl s_client' and 'openssl s_server' have new '-msg' options
3382 to enable a callback that displays all protocol messages.
3385 *) Change the shared library support so shared libraries are built as
3386 soon as the corresponding static library is finished, and thereby get
3387 openssl and the test programs linked against the shared library.
3388 This still only happens when the keyword "shard" has been given to
3389 the configuration scripts.
3391 NOTE: shared library support is still an experimental thing, and
3392 backward binary compatibility is still not guaranteed.
3393 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3395 *) Add support for Subject Information Access extension.
3396 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3398 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3399 additional bytes when new memory had to be allocated, not just
3400 when reusing an existing buffer.
3403 *) New command line and configuration option 'utf8' for the req command.
3404 This allows field values to be specified as UTF8 strings.
3407 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3408 runs for the former and machine-readable output for the latter.
3411 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3412 of the e-mail address in the DN (i.e., it will go into a certificate
3413 extension only). The new configuration file option 'email_in_dn = no'
3414 has the same effect.
3415 [Massimiliano Pala madwolf@openca.org]
3417 *) Change all functions with names starting with des_ to be starting
3418 with DES_ instead. Add wrappers that are compatible with libdes,
3419 but are named _ossl_old_des_*. Finally, add macros that map the
3420 des_* symbols to the corresponding _ossl_old_des_* if libdes
3421 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3422 desired, the des_* symbols will be mapped to DES_*, with one
3425 Since we provide two compatibility mappings, the user needs to
3426 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3427 compatibility is desired. The default (i.e., when that macro
3428 isn't defined) is OpenSSL 0.9.6c compatibility.
3430 There are also macros that enable and disable the support of old
3431 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3432 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3433 are defined, the default will apply: to support the old des routines.
3435 In either case, one must include openssl/des.h to get the correct
3436 definitions. Do not try to just include openssl/des_old.h, that
3439 NOTE: This is a major break of an old API into a new one. Software
3440 authors are encouraged to switch to the DES_ style functions. Some
3441 time in the future, des_old.h and the libdes compatibility functions
3442 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3443 default), and then completely removed.
3446 *) Test for certificates which contain unsupported critical extensions.
3447 If such a certificate is found during a verify operation it is
3448 rejected by default: this behaviour can be overridden by either
3449 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3450 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3451 X509_supported_extension() has also been added which returns 1 if a
3452 particular extension is supported.
3455 *) Modify the behaviour of EVP cipher functions in similar way to digests
3456 to retain compatibility with existing code.
3459 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3460 compatibility with existing code. In particular the 'ctx' parameter does
3461 not have to be to be initialized before the call to EVP_DigestInit() and
3462 it is tidied up after a call to EVP_DigestFinal(). New function
3463 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3464 EVP_MD_CTX_copy() changed to not require the destination to be
3465 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3466 requires the destination to be valid.
3468 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3469 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3472 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3473 so that complete 'Handshake' protocol structures are kept in memory
3474 instead of overwriting 'msg_type' and 'length' with 'body' data.
3477 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3478 [Massimo Santin via Richard Levitte]
3480 *) Major restructuring to the underlying ENGINE code. This includes
3481 reduction of linker bloat, separation of pure "ENGINE" manipulation
3482 (initialisation, etc) from functionality dealing with implementations
3483 of specific crypto iterfaces. This change also introduces integrated
3484 support for symmetric ciphers and digest implementations - so ENGINEs
3485 can now accelerate these by providing EVP_CIPHER and EVP_MD
3486 implementations of their own. This is detailed in crypto/engine/README
3487 as it couldn't be adequately described here. However, there are a few
3488 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3489 were changed in the original introduction of ENGINE code have now
3490 reverted back - the hooking from this code to ENGINE is now a good
3491 deal more passive and at run-time, operations deal directly with
3492 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3493 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3494 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3495 they were not being used by the framework as there is no concept of a
3496 BIGNUM_METHOD and they could not be generalised to the new
3497 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3498 ENGINE_cpy() has been removed as it cannot be consistently defined in
3502 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3505 *) Change mkdef.pl to sort symbols that get the same entry number,
3506 and make sure the automatically generated functions ERR_load_*
3507 become part of libeay.num as well.
3510 *) New function SSL_renegotiate_pending(). This returns true once
3511 renegotiation has been requested (either SSL_renegotiate() call
3512 or HelloRequest/ClientHello receveived from the peer) and becomes
3513 false once a handshake has been completed.
3514 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3515 sends a HelloRequest, but does not ensure that a handshake takes
3516 place. SSL_renegotiate_pending() is useful for checking if the
3517 client has followed the request.)
3520 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3521 By default, clients may request session resumption even during
3522 renegotiation (if session ID contexts permit); with this option,
3523 session resumption is possible only in the first handshake.
3525 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3526 more bits available for options that should not be part of
3527 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3530 *) Add some demos for certificate and certificate request creation.
3533 *) Make maximum certificate chain size accepted from the peer application
3534 settable (SSL*_get/set_max_cert_list()), as proposed by
3535 "Douglas E. Engert" <deengert@anl.gov>.
3538 *) Add support for shared libraries for Unixware-7
3539 (Boyd Lynn Gerber <gerberb@zenez.com>).
3542 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3543 be done prior to destruction. Use this to unload error strings from
3544 ENGINEs that load their own error strings. NB: This adds two new API
3545 functions to "get" and "set" this destroy handler in an ENGINE.
3548 *) Alter all existing ENGINE implementations (except "openssl" and
3549 "openbsd") to dynamically instantiate their own error strings. This
3550 makes them more flexible to be built both as statically-linked ENGINEs
3551 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3552 Also, add stub code to each that makes building them as self-contained
3553 shared-libraries easier (see README.ENGINE).
3556 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3557 implementations into applications that are completely implemented in
3558 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3559 commands that can be used to configure what shared-library to load and
3560 to control aspects of the way it is handled. Also, made an update to
3561 the README.ENGINE file that brings its information up-to-date and
3562 provides some information and instructions on the "dynamic" ENGINE
3563 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3566 *) Make it possible to unload ranges of ERR strings with a new
3567 "ERR_unload_strings" function.
3570 *) Add a copy() function to EVP_MD.
3573 *) Make EVP_MD routines take a context pointer instead of just the
3574 md_data void pointer.
3577 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3578 that the digest can only process a single chunk of data
3579 (typically because it is provided by a piece of
3580 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3581 is only going to provide a single chunk of data, and hence the
3582 framework needn't accumulate the data for oneshot drivers.
3585 *) As with "ERR", make it possible to replace the underlying "ex_data"
3586 functions. This change also alters the storage and management of global
3587 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3588 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3589 index counters. The API functions that use this state have been changed
3590 to take a "class_index" rather than pointers to the class's local STACK
3591 and counter, and there is now an API function to dynamically create new
3592 classes. This centralisation allows us to (a) plug a lot of the
3593 thread-safety problems that existed, and (b) makes it possible to clean
3594 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3595 such data would previously have always leaked in application code and
3596 workarounds were in place to make the memory debugging turn a blind eye
3597 to it. Application code that doesn't use this new function will still
3598 leak as before, but their memory debugging output will announce it now
3599 rather than letting it slide.
3601 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3602 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3603 has a return value to indicate success or failure.
3606 *) Make it possible to replace the underlying "ERR" functions such that the
3607 global state (2 LHASH tables and 2 locks) is only used by the "default"
3608 implementation. This change also adds two functions to "get" and "set"
3609 the implementation prior to it being automatically set the first time
3610 any other ERR function takes place. Ie. an application can call "get",
3611 pass the return value to a module it has just loaded, and that module
3612 can call its own "set" function using that value. This means the
3613 module's "ERR" operations will use (and modify) the error state in the
3614 application and not in its own statically linked copy of OpenSSL code.
3617 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3618 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3619 the operation, and provides a more encapsulated way for external code
3620 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3621 to use these functions rather than manually incrementing the counts.
3623 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3626 *) Add EVP test program.
3629 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3632 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3633 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3634 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3635 These allow a CRL to be built without having to access X509_CRL fields
3636 directly. Modify 'ca' application to use new functions.
3639 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3640 bug workarounds. Rollback attack detection is a security feature.
3641 The problem will only arise on OpenSSL servers when TLSv1 is not
3642 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3643 Software authors not wanting to support TLSv1 will have special reasons
3644 for their choice and can explicitly enable this option.
3645 [Bodo Moeller, Lutz Jaenicke]
3647 *) Rationalise EVP so it can be extended: don't include a union of
3648 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3649 (similar to those existing for EVP_CIPHER_CTX).
3654 EVP_MD_CTX_init(&md); /* new function call */
3655 EVP_DigestInit(&md, EVP_sha1());
3656 EVP_DigestUpdate(&md, in, len);
3657 EVP_DigestFinal(&md, out, NULL);
3658 EVP_MD_CTX_cleanup(&md); /* new function call */
3662 *) Make DES key schedule conform to the usual scheme, as well as
3663 correcting its structure. This means that calls to DES functions
3664 now have to pass a pointer to a des_key_schedule instead of a
3665 plain des_key_schedule (which was actually always a pointer
3668 des_key_schedule ks;
3670 des_set_key_checked(..., &ks);
3671 des_ncbc_encrypt(..., &ks, ...);
3673 (Note that a later change renames 'des_...' into 'DES_...'.)
3676 *) Initial reduction of linker bloat: the use of some functions, such as
3677 PEM causes large amounts of unused functions to be linked in due to
3678 poor organisation. For example pem_all.c contains every PEM function
3679 which has a knock on effect of linking in large amounts of (unused)
3680 ASN1 code. Grouping together similar functions and splitting unrelated
3681 functions prevents this.
3684 *) Cleanup of EVP macros.
3687 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3688 correct _ecb suffix.
3691 *) Add initial OCSP responder support to ocsp application. The
3692 revocation information is handled using the text based index
3693 use by the ca application. The responder can either handle
3694 requests generated internally, supplied in files (for example
3695 via a CGI script) or using an internal minimal server.
3698 *) Add configuration choices to get zlib compression for TLS.
3701 *) Changes to Kerberos SSL for RFC 2712 compliance:
3702 1. Implemented real KerberosWrapper, instead of just using
3703 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3704 2. Implemented optional authenticator field of KerberosWrapper.
3706 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3707 and authenticator structs; see crypto/krb5/.
3709 Generalized Kerberos calls to support multiple Kerberos libraries.
3710 [Vern Staats <staatsvr@asc.hpc.mil>,
3711 Jeffrey Altman <jaltman@columbia.edu>
3712 via Richard Levitte]
3714 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3715 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3716 values for each of the key sizes rather than having just
3717 parameters (and 'speed' generating keys each time).
3720 *) Speed up EVP routines.
3723 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3724 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3725 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3726 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3728 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3729 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3730 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3733 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3735 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3738 *) Added the OS2-EMX target.
3739 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3741 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3742 to support NCONF routines in extension code. New function CONF_set_nconf()
3743 to allow functions which take an NCONF to also handle the old LHASH
3744 structure: this means that the old CONF compatible routines can be
3745 retained (in particular wrt extensions) without having to duplicate the
3746 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3749 *) Enhance the general user interface with mechanisms for inner control
3750 and with possibilities to have yes/no kind of prompts.
3753 *) Change all calls to low level digest routines in the library and
3754 applications to use EVP. Add missing calls to HMAC_cleanup() and
3755 don't assume HMAC_CTX can be copied using memcpy().
3756 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3758 *) Add the possibility to control engines through control names but with
3759 arbitrary arguments instead of just a string.
3760 Change the key loaders to take a UI_METHOD instead of a callback
3761 function pointer. NOTE: this breaks binary compatibility with earlier
3762 versions of OpenSSL [engine].
3763 Adapt the nCipher code for these new conditions and add a card insertion
3767 *) Enhance the general user interface with mechanisms to better support
3768 dialog box interfaces, application-defined prompts, the possibility
3769 to use defaults (for example default passwords from somewhere else)
3770 and interrupts/cancellations.
3773 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3774 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3777 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3778 tidy up some unnecessarily weird code in 'sk_new()').
3779 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3781 *) Change the key loading routines for ENGINEs to use the same kind
3782 callback (pem_password_cb) as all other routines that need this
3786 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3787 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3788 than this minimum value is recommended.
3791 *) New random seeder for OpenVMS, using the system process statistics
3792 that are easily reachable.
3795 *) Windows apparently can't transparently handle global
3796 variables defined in DLLs. Initialisations such as:
3798 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3800 wont compile. This is used by the any applications that need to
3801 declare their own ASN1 modules. This was fixed by adding the option
3802 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3803 needed for static libraries under Win32.
3806 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3807 setting of purpose and trust fields. New X509_STORE trust and
3808 purpose functions and tidy up setting in other SSL functions.
3811 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3812 structure. These are inherited by X509_STORE_CTX when it is
3813 initialised. This allows various defaults to be set in the
3814 X509_STORE structure (such as flags for CRL checking and custom
3815 purpose or trust settings) for functions which only use X509_STORE_CTX
3816 internally such as S/MIME.
3818 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3819 trust settings if they are not set in X509_STORE. This allows X509_STORE
3820 purposes and trust (in S/MIME for example) to override any set by default.
3822 Add command line options for CRL checking to smime, s_client and s_server
3826 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3827 are set then the CRL is looked up in the X509_STORE structure and
3828 its validity and signature checked, then if the certificate is found
3829 in the CRL the verify fails with a revoked error.
3831 Various new CRL related callbacks added to X509_STORE_CTX structure.
3833 Command line options added to 'verify' application to support this.
3835 This needs some additional work, such as being able to handle multiple
3836 CRLs with different times, extension based lookup (rather than just
3837 by subject name) and ultimately more complete V2 CRL extension
3841 *) Add a general user interface API (crypto/ui/). This is designed
3842 to replace things like des_read_password and friends (backward
3843 compatibility functions using this new API are provided).
3844 The purpose is to remove prompting functions from the DES code
3845 section as well as provide for prompting through dialog boxes in
3846 a window system and the like.
3849 *) Add "ex_data" support to ENGINE so implementations can add state at a
3850 per-structure level rather than having to store it globally.
3853 *) Make it possible for ENGINE structures to be copied when retrieved by
3854 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3855 This causes the "original" ENGINE structure to act like a template,
3856 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3857 operational state can be localised to each ENGINE structure, despite the
3858 fact they all share the same "methods". New ENGINE structures returned in
3859 this case have no functional references and the return value is the single
3860 structural reference. This matches the single structural reference returned
3861 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3865 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3866 needs to match any other type at all we need to manually clear the
3870 *) Changes to the "openssl engine" utility to include;
3871 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3872 about an ENGINE's available control commands.
3873 - executing control commands from command line arguments using the
3874 '-pre' and '-post' switches. '-post' is only used if '-t' is
3875 specified and the ENGINE is successfully initialised. The syntax for
3876 the individual commands are colon-separated, for example;
3877 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3880 *) New dynamic control command support for ENGINEs. ENGINEs can now
3881 declare their own commands (numbers), names (strings), descriptions,
3882 and input types for run-time discovery by calling applications. A
3883 subset of these commands are implicitly classed as "executable"
3884 depending on their input type, and only these can be invoked through
3885 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3886 can be based on user input, config files, etc). The distinction is
3887 that "executable" commands cannot return anything other than a boolean
3888 result and can only support numeric or string input, whereas some
3889 discoverable commands may only be for direct use through
3890 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3891 pointers, or other custom uses. The "executable" commands are to
3892 support parameterisations of ENGINE behaviour that can be
3893 unambiguously defined by ENGINEs and used consistently across any
3894 OpenSSL-based application. Commands have been added to all the
3895 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3896 control over shared-library paths without source code alterations.
3899 *) Changed all ENGINE implementations to dynamically allocate their
3900 ENGINEs rather than declaring them statically. Apart from this being
3901 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3902 this also allows the implementations to compile without using the
3903 internal engine_int.h header.
3906 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3907 'const' value. Any code that should be able to modify a RAND_METHOD
3908 should already have non-const pointers to it (ie. they should only
3909 modify their own ones).
3912 *) Made a variety of little tweaks to the ENGINE code.
3913 - "atalla" and "ubsec" string definitions were moved from header files
3914 to C code. "nuron" string definitions were placed in variables
3915 rather than hard-coded - allowing parameterisation of these values
3916 later on via ctrl() commands.
3917 - Removed unused "#if 0"'d code.
3918 - Fixed engine list iteration code so it uses ENGINE_free() to release
3919 structural references.
3920 - Constified the RAND_METHOD element of ENGINE structures.
3921 - Constified various get/set functions as appropriate and added
3922 missing functions (including a catch-all ENGINE_cpy that duplicates
3923 all ENGINE values onto a new ENGINE except reference counts/state).
3924 - Removed NULL parameter checks in get/set functions. Setting a method
3925 or function to NULL is a way of cancelling out a previously set
3926 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3927 and doesn't justify the extra error symbols and code.
3928 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3929 flags from engine_int.h to engine.h.
3930 - Changed prototypes for ENGINE handler functions (init(), finish(),
3931 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3934 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3935 to the algorithm using long division. The binary algorithm can be
3936 used only if the modulus is odd. On 32-bit systems, it is faster
3937 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3938 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3939 up to 450 bits. In 64-bit environments, the binary algorithm
3940 appears to be advantageous for much longer moduli; here we use it
3941 for moduli up to 2048 bits.
3944 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3945 could not support the combine flag in choice fields.
3948 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3949 extensions from a certificate request to the certificate.
3952 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3953 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3954 file: this allows the display of the certificate about to be
3955 signed to be customised, to allow certain fields to be included
3956 or excluded and extension details. The old system didn't display
3957 multicharacter strings properly, omitted fields not in the policy
3958 and couldn't display additional details such as extensions.
3961 *) Function EC_POINTs_mul for multiple scalar multiplication
3962 of an arbitrary number of elliptic curve points
3963 \sum scalars[i]*points[i],
3964 optionally including the generator defined for the EC_GROUP:
3965 scalar*generator + \sum scalars[i]*points[i].
3967 EC_POINT_mul is a simple wrapper function for the typical case
3968 that the point list has just one item (besides the optional
3972 *) First EC_METHODs for curves over GF(p):
3974 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3975 operations and provides various method functions that can also
3976 operate with faster implementations of modular arithmetic.
3978 EC_GFp_mont_method() reuses most functions that are part of
3979 EC_GFp_simple_method, but uses Montgomery arithmetic.
3981 [Bodo Moeller; point addition and point doubling
3982 implementation directly derived from source code provided by
3983 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3985 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3986 crypto/ec/ec_lib.c):
3988 Curves are EC_GROUP objects (with an optional group generator)
3989 based on EC_METHODs that are built into the library.
3991 Points are EC_POINT objects based on EC_GROUP objects.
3993 Most of the framework would be able to handle curves over arbitrary
3994 finite fields, but as there are no obvious types for fields other
3995 than GF(p), some functions are limited to that for now.
3998 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3999 that the file contains a complete HTTP response.
4002 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4003 change the def and num file printf format specifier from "%-40sXXX"
4004 to "%-39s XXX". The latter will always guarantee a space after the
4005 field while the former will cause them to run together if the field
4006 is 40 of more characters long.
4009 *) Constify the cipher and digest 'method' functions and structures
4010 and modify related functions to take constant EVP_MD and EVP_CIPHER
4014 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4015 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4018 *) Modify EVP_Digest*() routines so they now return values. Although the
4019 internal software routines can never fail additional hardware versions
4023 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4025 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4026 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4029 ERR_R_NESTED_ASN1_ERROR
4031 ERR_R_MISSING_ASN1_EOS
4032 were 4 .. 9, conflicting with
4033 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4035 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4036 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4038 Add new error code 'ERR_R_INTERNAL_ERROR'.
4041 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4045 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4046 sets the subject name for a new request or supersedes the
4047 subject name in a given request. Formats that can be parsed are
4048 'CN=Some Name, OU=myOU, C=IT'
4050 'CN=Some Name/OU=myOU/C=IT'.
4052 Add options '-batch' and '-verbose' to 'openssl req'.
4053 [Massimiliano Pala <madwolf@hackmasters.net>]
4055 *) Introduce the possibility to access global variables through
4056 functions on platform were that's the best way to handle exporting
4057 global variables in shared libraries. To enable this functionality,
4058 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4059 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4060 is normally done by Configure or something similar).
4062 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4063 in the source file (foo.c) like this:
4065 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4066 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4068 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4069 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4071 OPENSSL_DECLARE_GLOBAL(int,foo);
4072 #define foo OPENSSL_GLOBAL_REF(foo)
4073 OPENSSL_DECLARE_GLOBAL(double,bar);
4074 #define bar OPENSSL_GLOBAL_REF(bar)
4076 The #defines are very important, and therefore so is including the
4077 header file everywhere where the defined globals are used.
4079 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4080 of ASN.1 items, but that structure is a bit different.
4082 The largest change is in util/mkdef.pl which has been enhanced with
4083 better and easier to understand logic to choose which symbols should
4084 go into the Windows .def files as well as a number of fixes and code
4085 cleanup (among others, algorithm keywords are now sorted
4086 lexicographically to avoid constant rewrites).
4089 *) In BN_div() keep a copy of the sign of 'num' before writing the
4090 result to 'rm' because if rm==num the value will be overwritten
4091 and produce the wrong result if 'num' is negative: this caused
4092 problems with BN_mod() and BN_nnmod().
4095 *) Function OCSP_request_verify(). This checks the signature on an
4096 OCSP request and verifies the signer certificate. The signer
4097 certificate is just checked for a generic purpose and OCSP request
4101 *) Add OCSP_check_validity() function to check the validity of OCSP
4102 responses. OCSP responses are prepared in real time and may only
4103 be a few seconds old. Simply checking that the current time lies
4104 between thisUpdate and nextUpdate max reject otherwise valid responses
4105 caused by either OCSP responder or client clock inaccuracy. Instead
4106 we allow thisUpdate and nextUpdate to fall within a certain period of
4107 the current time. The age of the response can also optionally be
4108 checked. Two new options -validity_period and -status_age added to
4112 *) If signature or public key algorithm is unrecognized print out its
4113 OID rather that just UNKNOWN.
4116 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4117 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4118 ID to be generated from the issuer certificate alone which can then be
4119 passed to OCSP_id_issuer_cmp().
4122 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4123 ASN1 modules to export functions returning ASN1_ITEM pointers
4124 instead of the ASN1_ITEM structures themselves. This adds several
4125 new macros which allow the underlying ASN1 function/structure to
4126 be accessed transparently. As a result code should not use ASN1_ITEM
4127 references directly (such as &X509_it) but instead use the relevant
4128 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4129 use of the new ASN1 code on platforms where exporting structures
4130 is problematical (for example in shared libraries) but exporting
4131 functions returning pointers to structures is not.
4134 *) Add support for overriding the generation of SSL/TLS session IDs.
4135 These callbacks can be registered either in an SSL_CTX or per SSL.
4136 The purpose of this is to allow applications to control, if they wish,
4137 the arbitrary values chosen for use as session IDs, particularly as it
4138 can be useful for session caching in multiple-server environments. A
4139 command-line switch for testing this (and any client code that wishes
4140 to use such a feature) has been added to "s_server".
4141 [Geoff Thorpe, Lutz Jaenicke]
4143 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4144 of the form '#if defined(...) || defined(...) || ...' and
4145 '#if !defined(...) && !defined(...) && ...'. This also avoids
4146 the growing number of special cases it was previously handling.
4149 *) Make all configuration macros available for application by making
4150 sure they are available in opensslconf.h, by giving them names starting
4151 with "OPENSSL_" to avoid conflicts with other packages and by making
4152 sure e_os2.h will cover all platform-specific cases together with
4154 Additionally, it is now possible to define configuration/platform-
4155 specific names (called "system identities"). In the C code, these
4156 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4157 macro with the name beginning with "OPENSSL_SYS_", which is determined
4158 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4162 *) New option -set_serial to 'req' and 'x509' this allows the serial
4163 number to use to be specified on the command line. Previously self
4164 signed certificates were hard coded with serial number 0 and the
4165 CA options of 'x509' had to use a serial number in a file which was
4169 *) New options to 'ca' utility to support V2 CRL entry extensions.
4170 Currently CRL reason, invalidity date and hold instruction are
4171 supported. Add new CRL extensions to V3 code and some new objects.
4174 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4175 disable standard block padding (aka PKCS#5 padding) in the EVP
4176 API, which was previously mandatory. This means that the data is
4177 not padded in any way and so the total length much be a multiple
4178 of the block size, otherwise an error occurs.
4181 *) Initial (incomplete) OCSP SSL support.
4184 *) New function OCSP_parse_url(). This splits up a URL into its host,
4185 port and path components: primarily to parse OCSP URLs. New -url
4186 option to ocsp utility.
4189 *) New nonce behavior. The return value of OCSP_check_nonce() now
4190 reflects the various checks performed. Applications can decide
4191 whether to tolerate certain situations such as an absent nonce
4192 in a response when one was present in a request: the ocsp application
4193 just prints out a warning. New function OCSP_add1_basic_nonce()
4194 this is to allow responders to include a nonce in a response even if
4195 the request is nonce-less.
4198 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4199 skipped when using openssl x509 multiple times on a single input file,
4200 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4203 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4204 set string type: to handle setting ASN1_TIME structures. Fix ca
4205 utility to correctly initialize revocation date of CRLs.
4208 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4209 the clients preferred ciphersuites and rather use its own preferences.
4210 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4211 Internet Explorer by ensuring unchanged hash method during stepup.
4212 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4215 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4216 to aes and add a new 'exist' option to print out symbols that don't
4220 *) Additional options to ocsp utility to allow flags to be set and
4221 additional certificates supplied.
4224 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4225 OCSP client a number of certificate to only verify the response
4229 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4230 handle the new API. Currently only ECB, CBC modes supported. Add new
4233 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4234 Encryption Standard (AES) Ciphersuites for Transport Layer
4235 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4236 not enabled by default and were not part of the "ALL" ciphersuite
4237 alias because they were not yet official; they could be
4238 explicitly requested by specifying the "AESdraft" ciphersuite
4239 group alias. In the final release of OpenSSL 0.9.7, the group
4240 alias is called "AES" and is part of "ALL".)
4241 [Ben Laurie, Steve Henson, Bodo Moeller]
4243 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4244 request to response.
4247 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4248 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4249 extract information from a certificate request. OCSP_response_create()
4250 creates a response and optionally adds a basic response structure.
4251 OCSP_basic_add1_status() adds a complete single response to a basic
4252 response and returns the OCSP_SINGLERESP structure just added (to allow
4253 extensions to be included for example). OCSP_basic_add1_cert() adds a
4254 certificate to a basic response and OCSP_basic_sign() signs a basic
4255 response with various flags. New helper functions ASN1_TIME_check()
4256 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4257 (converts ASN1_TIME to GeneralizedTime).
4260 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4261 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4262 structure from a certificate. X509_pubkey_digest() digests the public_key
4263 contents: this is used in various key identifiers.
4266 *) Make sk_sort() tolerate a NULL argument.
4267 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4269 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4270 passed by the function are trusted implicitly. If any of them signed the
4271 response then it is assumed to be valid and is not verified.
4274 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4275 to data. This was previously part of the PKCS7 ASN1 code. This
4276 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4277 [Steve Henson, reported by Kenneth R. Robinette
4278 <support@securenetterm.com>]
4280 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4281 routines: without these tracing memory leaks is very painful.
4282 Fix leaks in PKCS12 and PKCS7 routines.
4285 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4286 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4287 effectively meant GeneralizedTime would never be used. Now it
4288 is initialised to -1 but X509_time_adj() now has to check the value
4289 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4290 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4291 [Steve Henson, reported by Kenneth R. Robinette
4292 <support@securenetterm.com>]
4294 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4295 result in a zero length in the ASN1_INTEGER structure which was
4296 not consistent with the structure when d2i_ASN1_INTEGER() was used
4297 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4298 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4299 where it did not print out a minus for negative ASN1_INTEGER.
4302 *) Add summary printout to ocsp utility. The various functions which
4303 convert status values to strings have been renamed to:
4304 OCSP_response_status_str(), OCSP_cert_status_str() and
4305 OCSP_crl_reason_str() and are no longer static. New options
4306 to verify nonce values and to disable verification. OCSP response
4307 printout format cleaned up.
4310 *) Add additional OCSP certificate checks. These are those specified
4311 in RFC2560. This consists of two separate checks: the CA of the
4312 certificate being checked must either be the OCSP signer certificate
4313 or the issuer of the OCSP signer certificate. In the latter case the
4314 OCSP signer certificate must contain the OCSP signing extended key
4315 usage. This check is performed by attempting to match the OCSP
4316 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4317 in the OCSP_CERTID structures of the response.
4320 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4321 and related routines. This uses the standard OpenSSL certificate
4322 verify routines to perform initial checks (just CA validity) and
4323 to obtain the certificate chain. Then additional checks will be
4324 performed on the chain. Currently the root CA is checked to see
4325 if it is explicitly trusted for OCSP signing. This is used to set
4326 a root CA as a global signing root: that is any certificate that
4327 chains to that CA is an acceptable OCSP signing certificate.
4330 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4331 extensions from a separate configuration file.
4332 As when reading extensions from the main configuration file,
4333 the '-extensions ...' option may be used for specifying the
4335 [Massimiliano Pala <madwolf@comune.modena.it>]
4337 *) New OCSP utility. Allows OCSP requests to be generated or
4338 read. The request can be sent to a responder and the output
4339 parsed, outputed or printed in text form. Not complete yet:
4340 still needs to check the OCSP response validity.
4343 *) New subcommands for 'openssl ca':
4344 'openssl ca -status <serial>' prints the status of the cert with
4345 the given serial number (according to the index file).
4346 'openssl ca -updatedb' updates the expiry status of certificates
4348 [Massimiliano Pala <madwolf@comune.modena.it>]
4350 *) New '-newreq-nodes' command option to CA.pl. This is like
4351 '-newreq', but calls 'openssl req' with the '-nodes' option
4352 so that the resulting key is not encrypted.
4353 [Damien Miller <djm@mindrot.org>]
4355 *) New configuration for the GNU Hurd.
4356 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4358 *) Initial code to implement OCSP basic response verify. This
4359 is currently incomplete. Currently just finds the signer's
4360 certificate and verifies the signature on the response.
4363 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4364 value of OPENSSLDIR. This is available via the new '-d' option
4365 to 'openssl version', and is also included in 'openssl version -a'.
4368 *) Allowing defining memory allocation callbacks that will be given
4369 file name and line number information in additional arguments
4370 (a const char* and an int). The basic functionality remains, as
4371 well as the original possibility to just replace malloc(),
4372 realloc() and free() by functions that do not know about these
4373 additional arguments. To register and find out the current
4374 settings for extended allocation functions, the following
4375 functions are provided:
4377 CRYPTO_set_mem_ex_functions
4378 CRYPTO_set_locked_mem_ex_functions
4379 CRYPTO_get_mem_ex_functions
4380 CRYPTO_get_locked_mem_ex_functions
4382 These work the same way as CRYPTO_set_mem_functions and friends.
4383 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4384 extended allocation function is enabled.
4385 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4386 a conventional allocation function is enabled.
4387 [Richard Levitte, Bodo Moeller]
4389 *) Finish off removing the remaining LHASH function pointer casts.
4390 There should no longer be any prototype-casting required when using
4391 the LHASH abstraction, and any casts that remain are "bugs". See
4392 the callback types and macros at the head of lhash.h for details
4393 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4396 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4397 If /dev/[u]random devices are not available or do not return enough
4398 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4400 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4401 /etc/entropy will be queried once each in this sequence, quering stops
4402 when enough entropy was collected without querying more sockets.
4405 *) Change the Unix RAND_poll() variant to be able to poll several
4406 random devices, as specified by DEVRANDOM, until a sufficient amount
4407 of data has been collected. We spend at most 10 ms on each file
4408 (select timeout) and read in non-blocking mode. DEVRANDOM now
4409 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4410 (previously it was just the string "/dev/urandom"), so on typical
4411 platforms the 10 ms delay will never occur.
4412 Also separate out the Unix variant to its own file, rand_unix.c.
4413 For VMS, there's a currently-empty rand_vms.c.
4416 *) Move OCSP client related routines to ocsp_cl.c. These
4417 provide utility functions which an application needing
4418 to issue a request to an OCSP responder and analyse the
4419 response will typically need: as opposed to those which an
4420 OCSP responder itself would need which will be added later.
4422 OCSP_request_sign() signs an OCSP request with an API similar
4423 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4424 response. OCSP_response_get1_basic() extracts basic response
4425 from response. OCSP_resp_find_status(): finds and extracts status
4426 information from an OCSP_CERTID structure (which will be created
4427 when the request structure is built). These are built from lower
4428 level functions which work on OCSP_SINGLERESP structures but
4429 wont normally be used unless the application wishes to examine
4430 extensions in the OCSP response for example.
4432 Replace nonce routines with a pair of functions.
4433 OCSP_request_add1_nonce() adds a nonce value and optionally
4434 generates a random value. OCSP_check_nonce() checks the
4435 validity of the nonce in an OCSP response.
4438 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4439 This doesn't copy the supplied OCSP_CERTID and avoids the
4440 need to free up the newly created id. Change return type
4441 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4442 This can then be used to add extensions to the request.
4443 Deleted OCSP_request_new(), since most of its functionality
4444 is now in OCSP_REQUEST_new() (and the case insensitive name
4445 clash) apart from the ability to set the request name which
4446 will be added elsewhere.
4449 *) Update OCSP API. Remove obsolete extensions argument from
4450 various functions. Extensions are now handled using the new
4451 OCSP extension code. New simple OCSP HTTP function which
4452 can be used to send requests and parse the response.
4455 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4456 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4457 uses the special reorder version of SET OF to sort the attributes
4458 and reorder them to match the encoded order. This resolves a long
4459 standing problem: a verify on a PKCS7 structure just after signing
4460 it used to fail because the attribute order did not match the
4461 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4462 it uses the received order. This is necessary to tolerate some broken
4463 software that does not order SET OF. This is handled by encoding
4464 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4465 to produce the required SET OF.
4468 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4469 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4470 files to get correct declarations of the ASN.1 item variables.
4473 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4474 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4475 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4476 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4477 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4478 ASN1_ITEM and no wrapper functions.
4481 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4482 replace the old function pointer based I/O routines. Change most of
4483 the *_d2i_bio() and *_d2i_fp() functions to use these.
4486 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4487 lines, recognice more "algorithms" that can be deselected, and make
4488 it complain about algorithm deselection that isn't recognised.
4491 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4492 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4493 to use new functions. Add NO_ASN1_OLD which can be set to remove
4494 some old style ASN1 functions: this can be used to determine if old
4495 code will still work when these eventually go away.
4498 *) New extension functions for OCSP structures, these follow the
4499 same conventions as certificates and CRLs.
4502 *) New function X509V3_add1_i2d(). This automatically encodes and
4503 adds an extension. Its behaviour can be customised with various
4504 flags to append, replace or delete. Various wrappers added for
4505 certifcates and CRLs.
4508 *) Fix to avoid calling the underlying ASN1 print routine when
4509 an extension cannot be parsed. Correct a typo in the
4510 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4513 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4514 entries for variables.
4517 *) Add functionality to apps/openssl.c for detecting locking
4518 problems: As the program is single-threaded, all we have
4519 to do is register a locking callback using an array for
4520 storing which locks are currently held by the program.
4523 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4524 SSL_get_ex_data_X509_STORE_idx(), which is used in
4525 ssl_verify_cert_chain() and thus can be called at any time
4526 during TLS/SSL handshakes so that thread-safety is essential.
4527 Unfortunately, the ex_data design is not at all suited
4528 for multi-threaded use, so it probably should be abolished.
4531 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4532 [Broadcom, tweaked and integrated by Geoff Thorpe]
4534 *) Move common extension printing code to new function
4535 X509V3_print_extensions(). Reorganise OCSP print routines and
4536 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4539 *) New function X509_signature_print() to remove duplication in some
4543 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4544 set (this was treated exactly the same as SET OF previously). This
4545 is used to reorder the STACK representing the structure to match the
4546 encoding. This will be used to get round a problem where a PKCS7
4547 structure which was signed could not be verified because the STACK
4548 order did not reflect the encoded order.
4551 *) Reimplement the OCSP ASN1 module using the new code.
4554 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4555 for its ASN1 operations. The old style function pointers still exist
4556 for now but they will eventually go away.
4559 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4560 completely replaces the old ASN1 functionality with a table driven
4561 encoder and decoder which interprets an ASN1_ITEM structure describing
4562 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4563 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4564 has also been converted to the new form.
4567 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4568 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4569 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4570 for negative moduli.
4573 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4574 of not touching the result's sign bit.
4577 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4581 *) Changed the LHASH code to use prototypes for callbacks, and created
4582 macros to declare and implement thin (optionally static) functions
4583 that provide type-safety and avoid function pointer casting for the
4584 type-specific callbacks.
4587 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4589 [Veers Staats <staatsvr@asc.hpc.mil>,
4590 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4592 *) Reformat the FAQ so the different questions and answers can be divided
4593 in sections depending on the subject.
4596 *) Have the zlib compression code load ZLIB.DLL dynamically under
4600 *) New function BN_mod_sqrt for computing square roots modulo a prime
4601 (using the probabilistic Tonelli-Shanks algorithm unless
4602 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4603 be handled deterministically).
4604 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4606 *) Make BN_mod_inverse faster by explicitly handling small quotients
4607 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4608 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4611 *) New function BN_kronecker.
4614 *) Fix BN_gcd so that it works on negative inputs; the result is
4615 positive unless both parameters are zero.
4616 Previously something reasonably close to an infinite loop was
4617 possible because numbers could be growing instead of shrinking
4618 in the implementation of Euclid's algorithm.
4621 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4622 sign of the number in question.
4624 Fix BN_is_word(a,w) to work correctly for w == 0.
4626 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4627 because its test if the absolute value of 'a' equals 'w'.
4628 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4629 it exists mostly for use in the implementations of BN_is_zero(),
4630 BN_is_one(), and BN_is_word().
4633 *) New function BN_swap.
4636 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4637 the exponentiation functions are more likely to produce reasonable
4638 results on negative inputs.
4641 *) Change BN_mod_mul so that the result is always non-negative.
4642 Previously, it could be negative if one of the factors was negative;
4643 I don't think anyone really wanted that behaviour.
4646 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4647 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4648 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4649 and add new functions:
4658 BN_mod_lshift1_quick
4662 These functions always generate non-negative results.
4664 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4665 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4667 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4668 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4669 be reduced modulo m.
4670 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4673 The following entry accidentily appeared in the CHANGES file
4674 distributed with OpenSSL 0.9.7. The modifications described in
4675 it do *not* apply to OpenSSL 0.9.7.
4677 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4678 was actually never needed) and in BN_mul(). The removal in BN_mul()
4679 required a small change in bn_mul_part_recursive() and the addition
4680 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4681 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4682 bn_sub_words() and bn_add_words() except they take arrays with
4687 *) In 'openssl passwd', verify passwords read from the terminal
4688 unless the '-salt' option is used (which usually means that
4689 verification would just waste user's time since the resulting
4690 hash is going to be compared with some given password hash)
4691 or the new '-noverify' option is used.
4693 This is an incompatible change, but it does not affect
4694 non-interactive use of 'openssl passwd' (passwords on the command
4695 line, '-stdin' option, '-in ...' option) and thus should not
4699 *) Remove all references to RSAref, since there's no more need for it.
4702 *) Make DSO load along a path given through an environment variable
4703 (SHLIB_PATH) with shl_load().
4706 *) Constify the ENGINE code as a result of BIGNUM constification.
4707 Also constify the RSA code and most things related to it. In a
4708 few places, most notable in the depth of the ASN.1 code, ugly
4709 casts back to non-const were required (to be solved at a later
4713 *) Make it so the openssl application has all engines loaded by default.
4716 *) Constify the BIGNUM routines a little more.
4719 *) Add the following functions:
4721 ENGINE_load_cswift()
4723 ENGINE_load_atalla()
4725 ENGINE_load_builtin_engines()
4727 That way, an application can itself choose if external engines that
4728 are built-in in OpenSSL shall ever be used or not. The benefit is
4729 that applications won't have to be linked with libdl or other dso
4730 libraries unless it's really needed.
4732 Changed 'openssl engine' to load all engines on demand.
4733 Changed the engine header files to avoid the duplication of some
4734 declarations (they differed!).
4737 *) 'openssl engine' can now list capabilities.
4740 *) Better error reporting in 'openssl engine'.
4743 *) Never call load_dh_param(NULL) in s_server.
4746 *) Add engine application. It can currently list engines by name and
4747 identity, and test if they are actually available.
4750 *) Improve RPM specification file by forcing symbolic linking and making
4751 sure the installed documentation is also owned by root.root.
4752 [Damien Miller <djm@mindrot.org>]
4754 *) Give the OpenSSL applications more possibilities to make use of
4755 keys (public as well as private) handled by engines.
4758 *) Add OCSP code that comes from CertCo.
4761 *) Add VMS support for the Rijndael code.
4764 *) Added untested support for Nuron crypto accelerator.
4767 *) Add support for external cryptographic devices. This code was
4768 previously distributed separately as the "engine" branch.
4769 [Geoff Thorpe, Richard Levitte]
4771 *) Rework the filename-translation in the DSO code. It is now possible to
4772 have far greater control over how a "name" is turned into a filename
4773 depending on the operating environment and any oddities about the
4774 different shared library filenames on each system.
4777 *) Support threads on FreeBSD-elf in Configure.
4780 *) Fix for SHA1 assembly problem with MASM: it produces
4781 warnings about corrupt line number information when assembling
4782 with debugging information. This is caused by the overlapping
4784 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4787 NCONF_get_number() has no error checking at all. As a replacement,
4788 NCONF_get_number_e() is defined (_e for "error checking") and is
4789 promoted strongly. The old NCONF_get_number is kept around for
4790 binary backward compatibility.
4791 Make it possible for methods to load from something other than a BIO,
4792 by providing a function pointer that is given a name instead of a BIO.
4793 For example, this could be used to load configuration data from an
4797 *) Fix for non blocking accept BIOs. Added new I/O special reason
4798 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4799 with non blocking I/O was not possible because no retry code was
4800 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4804 *) Added the beginnings of Rijndael support.
4807 *) Fix for bug in DirectoryString mask setting. Add support for
4808 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4809 to allow certificate printing to more controllable, additional
4810 'certopt' option to 'x509' to allow new printing options to be
4814 *) Clean old EAY MD5 hack from e_os.h.
4817 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4819 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4820 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4821 [Joe Orton, Steve Henson]
4823 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4825 *) Fix additional bug revealed by the NISCC test suite:
4827 Stop bug triggering large recursion when presented with
4828 certain ASN.1 tags (CVE-2003-0851)
4831 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4833 *) Fix various bugs revealed by running the NISCC test suite:
4835 Stop out of bounds reads in the ASN1 code when presented with
4836 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4838 If verify callback ignores invalid public key errors don't try to check
4839 certificate signature with the NULL public key.
4843 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4844 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4848 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4849 extra data after the compression methods not only for TLS 1.0
4850 but also for SSL 3.0 (as required by the specification).
4851 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4853 *) Change X509_certificate_type() to mark the key as exported/exportable
4854 when it's 512 *bits* long, not 512 bytes.
4857 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4859 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4860 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4861 a protocol version number mismatch like a decryption error
4862 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4865 *) Turn on RSA blinding by default in the default implementation
4866 to avoid a timing attack. Applications that don't want it can call
4867 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4868 They would be ill-advised to do so in most cases.
4869 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4871 *) Change RSA blinding code so that it works when the PRNG is not
4872 seeded (in this case, the secret RSA exponent is abused as
4873 an unpredictable seed -- if it is not unpredictable, there
4874 is no point in blinding anyway). Make RSA blinding thread-safe
4875 by remembering the creator's thread ID in rsa->blinding and
4876 having all other threads use local one-time blinding factors
4877 (this requires more computation than sharing rsa->blinding, but
4878 avoids excessive locking; and if an RSA object is not shared
4879 between threads, blinding will still be very fast).
4882 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4884 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4885 via timing by performing a MAC computation even if incorrrect
4886 block cipher padding has been found. This is a countermeasure
4887 against active attacks where the attacker has to distinguish
4888 between bad padding and a MAC verification error. (CVE-2003-0078)
4890 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4891 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4892 Martin Vuagnoux (EPFL, Ilion)]
4894 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4896 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4897 memory from it's contents. This is done with a counter that will
4898 place alternating values in each byte. This can be used to solve
4899 two issues: 1) the removal of calls to memset() by highly optimizing
4900 compilers, and 2) cleansing with other values than 0, since those can
4901 be read through on certain media, for example a swap space on disk.
4904 *) Bugfix: client side session caching did not work with external caching,
4905 because the session->cipher setting was not restored when reloading
4906 from the external cache. This problem was masked, when
4907 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4908 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4911 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4912 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4913 [Zeev Lieber <zeev-l@yahoo.com>]
4915 *) Undo an undocumented change introduced in 0.9.6e which caused
4916 repeated calls to OpenSSL_add_all_ciphers() and
4917 OpenSSL_add_all_digests() to be ignored, even after calling
4921 *) Change the default configuration reader to deal with last line not
4922 being properly terminated.
4925 *) Change X509_NAME_cmp() so it applies the special rules on handling
4926 DN values that are of type PrintableString, as well as RDNs of type
4927 emailAddress where the value has the type ia5String.
4928 [stefank@valicert.com via Richard Levitte]
4930 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4931 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4932 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4933 the bitwise-OR of the two for use by the majority of applications
4934 wanting this behaviour, and update the docs. The documented
4935 behaviour and actual behaviour were inconsistent and had been
4936 changing anyway, so this is more a bug-fix than a behavioural
4938 [Geoff Thorpe, diagnosed by Nadav Har'El]
4940 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4941 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4944 *) Fix initialization code race conditions in
4945 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4946 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4947 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4948 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4949 ssl2_get_cipher_by_char(),
4950 ssl3_get_cipher_by_char().
4951 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4953 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4954 the cached sessions are flushed, as the remove_cb() might use ex_data
4955 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4956 (see [openssl.org #212]).
4957 [Geoff Thorpe, Lutz Jaenicke]
4959 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4960 length, instead of the encoding length to d2i_ASN1_OBJECT.
4963 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4965 *) [In 0.9.6g-engine release:]
4966 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4967 [Lynn Gazis <lgazis@rainbow.com>]
4969 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4971 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4972 and get fix the header length calculation.
4973 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4974 Alon Kantor <alonk@checkpoint.com> (and others),
4977 *) Use proper error handling instead of 'assertions' in buffer
4978 overflow checks added in 0.9.6e. This prevents DoS (the
4979 assertions could call abort()).
4980 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4982 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4984 *) Add various sanity checks to asn1_get_length() to reject
4985 the ASN1 length bytes if they exceed sizeof(long), will appear
4986 negative or the content length exceeds the length of the
4988 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4990 *) Fix cipher selection routines: ciphers without encryption had no flags
4991 for the cipher strength set and where therefore not handled correctly
4992 by the selection routines (PR #130).
4995 *) Fix EVP_dsa_sha macro.
4999 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5000 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5001 that was added in OpenSSL 0.9.6d.
5003 As the countermeasure turned out to be incompatible with some
5004 broken SSL implementations, the new option is part of SSL_OP_ALL.
5005 SSL_OP_ALL is usually employed when compatibility with weird SSL
5006 implementations is desired (e.g. '-bugs' option to 's_client' and
5007 's_server'), so the new option is automatically set in many
5011 *) Changes in security patch:
5013 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5014 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5015 Air Force Materiel Command, USAF, under agreement number
5018 *) Add various sanity checks to asn1_get_length() to reject
5019 the ASN1 length bytes if they exceed sizeof(long), will appear
5020 negative or the content length exceeds the length of the
5021 supplied buffer. (CVE-2002-0659)
5022 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5024 *) Assertions for various potential buffer overflows, not known to
5026 [Ben Laurie (CHATS)]
5028 *) Various temporary buffers to hold ASCII versions of integers were
5029 too small for 64 bit platforms. (CVE-2002-0655)
5030 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5032 *) Remote buffer overflow in SSL3 protocol - an attacker could
5033 supply an oversized session ID to a client. (CVE-2002-0656)
5034 [Ben Laurie (CHATS)]
5036 *) Remote buffer overflow in SSL2 protocol - an attacker could
5037 supply an oversized client master key. (CVE-2002-0656)
5038 [Ben Laurie (CHATS)]
5040 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5042 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5043 encoded as NULL) with id-dsa-with-sha1.
5044 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5046 *) Check various X509_...() return values in apps/req.c.
5047 [Nils Larsch <nla@trustcenter.de>]
5049 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5050 an end-of-file condition would erronously be flagged, when the CRLF
5051 was just at the end of a processed block. The bug was discovered when
5052 processing data through a buffering memory BIO handing the data to a
5053 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5054 <ptsekov@syntrex.com> and Nedelcho Stanev.
5057 *) Implement a countermeasure against a vulnerability recently found
5058 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5059 before application data chunks to avoid the use of known IVs
5060 with data potentially chosen by the attacker.
5063 *) Fix length checks in ssl3_get_client_hello().
5066 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5067 to prevent ssl3_read_internal() from incorrectly assuming that
5068 ssl3_read_bytes() found application data while handshake
5069 processing was enabled when in fact s->s3->in_read_app_data was
5070 merely automatically cleared during the initial handshake.
5071 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5073 *) Fix object definitions for Private and Enterprise: they were not
5074 recognized in their shortname (=lowercase) representation. Extend
5075 obj_dat.pl to issue an error when using undefined keywords instead
5076 of silently ignoring the problem (Svenning Sorensen
5077 <sss@sss.dnsalias.net>).
5080 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5081 generators, i.e. generators other than 2 and 5. (Previously, the
5082 code did not properly initialise the 'add' and 'rem' values to
5083 BN_generate_prime().)
5085 In the new general case, we do not insist that 'generator' is
5086 actually a primitive root: This requirement is rather pointless;
5087 a generator of the order-q subgroup is just as good, if not
5091 *) Map new X509 verification errors to alerts. Discovered and submitted by
5092 Tom Wu <tom@arcot.com>.
5095 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5096 returning non-zero before the data has been completely received
5097 when using non-blocking I/O.
5098 [Bodo Moeller; problem pointed out by John Hughes]
5100 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5101 [Ben Laurie, Lutz Jaenicke]
5103 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5104 Yoram Zahavi <YoramZ@gilian.com>).
5107 *) Add information about CygWin 1.3 and on, and preserve proper
5108 configuration for the versions before that.
5109 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5111 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5112 check whether we deal with a copy of a session and do not delete from
5113 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5114 <izhar@checkpoint.com>.
5117 *) Do not store session data into the internal session cache, if it
5118 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5119 flag is set). Proposed by Aslam <aslam@funk.com>.
5122 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5126 *) [In 0.9.6d-engine release:]
5127 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5128 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5130 *) Add the configuration target linux-s390x.
5131 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5133 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5134 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5135 variable as an indication that a ClientHello message has been
5136 received. As the flag value will be lost between multiple
5137 invocations of ssl3_accept when using non-blocking I/O, the
5138 function may not be aware that a handshake has actually taken
5139 place, thus preventing a new session from being added to the
5142 To avoid this problem, we now set s->new_session to 2 instead of
5143 using a local variable.
5144 [Lutz Jaenicke, Bodo Moeller]
5146 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5147 if the SSL_R_LENGTH_MISMATCH error is detected.
5148 [Geoff Thorpe, Bodo Moeller]
5150 *) New 'shared_ldflag' column in Configure platform table.
5153 *) Fix EVP_CIPHER_mode macro.
5154 ["Dan S. Camper" <dan@bti.net>]
5156 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5157 type, we must throw them away by setting rr->length to 0.
5158 [D P Chang <dpc@qualys.com>]
5160 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5162 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5163 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5164 worked incorrectly for those cases where range = 10..._2 and
5165 3*range is two bits longer than range.)
5168 *) Only add signing time to PKCS7 structures if it is not already
5172 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5173 OBJ_ld_ce should be OBJ_id_ce.
5174 Also some ip-pda OIDs in crypto/objects/objects.txt were
5175 incorrect (cf. RFC 3039).
5176 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5178 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5179 returns early because it has nothing to do.
5180 [Andy Schneider <andy.schneider@bjss.co.uk>]
5182 *) [In 0.9.6c-engine release:]
5183 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5184 [Andy Schneider <andy.schneider@bjss.co.uk>]
5186 *) [In 0.9.6c-engine release:]
5187 Add support for Cryptographic Appliance's keyserver technology.
5188 (Use engine 'keyclient')
5189 [Cryptographic Appliances and Geoff Thorpe]
5191 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5192 is called via tools/c89.sh because arguments have to be
5193 rearranged (all '-L' options must appear before the first object
5195 [Richard Shapiro <rshapiro@abinitio.com>]
5197 *) [In 0.9.6c-engine release:]
5198 Add support for Broadcom crypto accelerator cards, backported
5200 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5202 *) [In 0.9.6c-engine release:]
5203 Add support for SureWare crypto accelerator cards from
5204 Baltimore Technologies. (Use engine 'sureware')
5205 [Baltimore Technologies and Mark Cox]
5207 *) [In 0.9.6c-engine release:]
5208 Add support for crypto accelerator cards from Accelerated
5209 Encryption Processing, www.aep.ie. (Use engine 'aep')
5210 [AEP Inc. and Mark Cox]
5212 *) Add a configuration entry for gcc on UnixWare.
5213 [Gary Benson <gbenson@redhat.com>]
5215 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5216 messages are stored in a single piece (fixed-length part and
5217 variable-length part combined) and fix various bugs found on the way.
5220 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5221 instead. BIO_gethostbyname() does not know what timeouts are
5222 appropriate, so entries would stay in cache even when they have
5224 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5226 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5227 faced with a pathologically small ClientHello fragment that does
5228 not contain client_version: Instead of aborting with an error,
5229 simply choose the highest available protocol version (i.e.,
5230 TLS 1.0 unless it is disabled). In practice, ClientHello
5231 messages are never sent like this, but this change gives us
5232 strictly correct behaviour at least for TLS.
5235 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5236 never resets s->method to s->ctx->method when called from within
5237 one of the SSL handshake functions.
5238 [Bodo Moeller; problem pointed out by Niko Baric]
5240 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5241 (sent using the client's version number) if client_version is
5242 smaller than the protocol version in use. Also change
5243 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5244 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5245 the client will at least see that alert.
5248 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5252 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5253 client receives HelloRequest while in a handshake.
5254 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5256 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5257 should end in 'break', not 'goto end' which circuments various
5258 cleanups done in state SSL_ST_OK. But session related stuff
5259 must be disabled for SSL_ST_OK in the case that we just sent a
5262 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5263 before just sending a HelloRequest.
5264 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5266 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5267 reveal whether illegal block cipher padding was found or a MAC
5268 verification error occured. (Neither SSLerr() codes nor alerts
5269 are directly visible to potential attackers, but the information
5270 may leak via logfiles.)
5272 Similar changes are not required for the SSL 2.0 implementation
5273 because the number of padding bytes is sent in clear for SSL 2.0,
5274 and the extra bytes are just ignored. However ssl/s2_pkt.c
5275 failed to verify that the purported number of padding bytes is in
5279 *) Add OpenUNIX-8 support including shared libraries
5280 (Boyd Lynn Gerber <gerberb@zenez.com>).
5283 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5284 'wristwatch attack' using huge encoding parameters (cf.
5285 James H. Manger's CRYPTO 2001 paper). Note that the
5286 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5287 encoding parameters and hence was not vulnerable.
5290 *) BN_sqr() bug fix.
5291 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5293 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5294 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5295 followed by modular reduction.
5296 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5298 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5299 equivalent based on BN_pseudo_rand() instead of BN_rand().
5302 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5303 This function was broken, as the check for a new client hello message
5304 to handle SGC did not allow these large messages.
5305 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5308 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5311 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5312 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5315 *) Rework the configuration and shared library support for Tru64 Unix.
5316 The configuration part makes use of modern compiler features and
5317 still retains old compiler behavior for those that run older versions
5318 of the OS. The shared library support part includes a variant that
5319 uses the RPATH feature, and is available through the special
5320 configuration target "alpha-cc-rpath", which will never be selected
5322 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5324 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5325 with the same message size as in ssl3_get_certificate_request().
5326 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5327 messages might inadvertently be reject as too long.
5328 [Petr Lampa <lampa@fee.vutbr.cz>]
5330 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5333 *) Modified SSL library such that the verify_callback that has been set
5334 specificly for an SSL object with SSL_set_verify() is actually being
5335 used. Before the change, a verify_callback set with this function was
5336 ignored and the verify_callback() set in the SSL_CTX at the time of
5337 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5338 to allow the necessary settings.
5341 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5342 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5343 done automatically (in contradiction to the requirements of the C
5344 standard). This made problems when used from OpenSSH.
5347 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5348 dh->length and always used
5350 BN_rand_range(priv_key, dh->p).
5352 BN_rand_range() is not necessary for Diffie-Hellman, and this
5353 specific range makes Diffie-Hellman unnecessarily inefficient if
5354 dh->length (recommended exponent length) is much smaller than the
5355 length of dh->p. We could use BN_rand_range() if the order of
5356 the subgroup was stored in the DH structure, but we only have
5361 BN_rand(priv_key, l, ...)
5363 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5369 RSA_eay_public_encrypt
5370 RSA_eay_private_decrypt
5371 RSA_eay_private_encrypt (signing)
5372 RSA_eay_public_decrypt (signature verification)
5374 (default implementations for RSA_public_encrypt,
5375 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5376 always reject numbers >= n.
5379 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5380 to synchronize access to 'locking_thread'. This is necessary on
5381 systems where access to 'locking_thread' (an 'unsigned long'
5382 variable) is not atomic.
5385 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5386 *before* setting the 'crypto_lock_rand' flag. The previous code had
5387 a race condition if 0 is a valid thread ID.
5388 [Travis Vitek <vitek@roguewave.com>]
5390 *) Add support for shared libraries under Irix.
5391 [Albert Chin-A-Young <china@thewrittenword.com>]
5393 *) Add configuration option to build on Linux on both big-endian and
5395 [Ralf Baechle <ralf@uni-koblenz.de>]
5397 *) Add the possibility to create shared libraries on HP-UX.
5400 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5402 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5403 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5404 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5405 PRNG state recovery was possible based on the output of
5406 one PRNG request appropriately sized to gain knowledge on
5407 'md' followed by enough consecutive 1-byte PRNG requests
5408 to traverse all of 'state'.
5410 1. When updating 'md_local' (the current thread's copy of 'md')
5411 during PRNG output generation, hash all of the previous
5412 'md_local' value, not just the half used for PRNG output.
5414 2. Make the number of bytes from 'state' included into the hash
5415 independent from the number of PRNG bytes requested.
5417 The first measure alone would be sufficient to avoid
5418 Markku-Juhani's attack. (Actually it had never occurred
5419 to me that the half of 'md_local' used for chaining was the
5420 half from which PRNG output bytes were taken -- I had always
5421 assumed that the secret half would be used.) The second
5422 measure makes sure that additional data from 'state' is never
5423 mixed into 'md_local' in small portions; this heuristically
5424 further strengthens the PRNG.
5427 *) Fix crypto/bn/asm/mips3.s.
5430 *) When only the key is given to "enc", the IV is undefined. Print out
5431 an error message in this case.
5434 *) Handle special case when X509_NAME is empty in X509 printing routines.
5437 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5438 positive and less than q.
5441 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5442 used: it isn't thread safe and the add_lock_callback should handle
5444 [Paul Rose <Paul.Rose@bridge.com>]
5446 *) Verify that incoming data obeys the block size in
5447 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5451 [Ulf Möller, Bodo Möller]
5453 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5454 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5455 when fixing the server behaviour for backwards-compatible 'client
5456 hello' messages. (Note that the attack is impractical against
5457 SSL 3.0 and TLS 1.0 anyway because length and version checking
5458 means that the probability of guessing a valid ciphertext is
5459 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5462 Before 0.9.5, the countermeasure (hide the error by generating a
5463 random 'decryption result') did not work properly because
5464 ERR_clear_error() was missing, meaning that SSL_get_error() would
5465 detect the supposedly ignored error.
5467 Both problems are now fixed.
5470 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5471 (previously it was 1024).
5474 *) Fix for compatibility mode trust settings: ignore trust settings
5475 unless some valid trust or reject settings are present.
5478 *) Fix for blowfish EVP: its a variable length cipher.
5481 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5482 parameters in DSA public key structures and return an error in the
5483 DSA routines if parameters are absent.
5486 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5487 in the current directory if neither $RANDFILE nor $HOME was set.
5488 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5489 caused some confusion to Windows users who haven't defined $HOME.
5490 Thus RAND_file_name() is changed again: e_os.h can define a
5491 DEFAULT_HOME, which will be used if $HOME is not set.
5492 For Windows, we use "C:"; on other platforms, we still require
5493 environment variables.
5495 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5496 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5497 having multiple threads call RAND_poll() concurrently.
5500 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5501 combination of a flag and a thread ID variable.
5502 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5503 flag), *other* threads can enter ssleay_add_bytes without obeying
5504 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5505 that they do not hold after the first thread unsets add_do_not_lock).
5508 *) Change bctest again: '-x' expressions are not available in all
5512 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5514 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5515 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5517 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5518 the default extension for executables, if any. Also, make the perl
5519 scripts that use symlink() to test if it really exists and use "cp"
5520 if it doesn't. All this made OpenSSL compilable and installable in
5524 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5525 If SEQUENCE is length is indefinite just set c->slen to the total
5526 amount of data available.
5527 [Steve Henson, reported by shige@FreeBSD.org]
5528 [This change does not apply to 0.9.7.]
5530 *) Change bctest to avoid here-documents inside command substitution
5531 (workaround for FreeBSD /bin/sh bug).
5532 For compatibility with Ultrix, avoid shell functions (introduced
5533 in the bctest version that searches along $PATH).
5536 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5537 with des_encrypt() defined on some operating systems, like Solaris
5541 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5542 On the Importance of Eliminating Errors in Cryptographic
5543 Computations, J. Cryptology 14 (2001) 2, 101-119,
5544 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5547 *) MIPS assembler BIGNUM division bug fix.
5550 *) Disabled incorrect Alpha assembler code.
5553 *) Fix PKCS#7 decode routines so they correctly update the length
5554 after reading an EOC for the EXPLICIT tag.
5556 [This change does not apply to 0.9.7.]
5558 *) Fix bug in PKCS#12 key generation routines. This was triggered
5559 if a 3DES key was generated with a 0 initial byte. Include
5560 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5561 (but broken) behaviour.
5564 *) Enhance bctest to search for a working bc along $PATH and print
5566 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5568 *) Fix memory leaks in err.c: free err_data string if necessary;
5569 don't write to the wrong index in ERR_set_error_data.
5572 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5576 *) Replace rdtsc with _emit statements for VC++ version 5.
5577 [Jeremy Cooper <jeremy@baymoo.org>]
5579 *) Make it possible to reuse SSLv2 sessions.
5582 *) In copy_email() check for >= 0 as a return value for
5583 X509_NAME_get_index_by_NID() since 0 is a valid index.
5584 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5586 *) Avoid coredump with unsupported or invalid public keys by checking if
5587 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5588 PKCS7_verify() fails with non detached data.
5591 *) Don't use getenv in library functions when run as setuid/setgid.
5592 New function OPENSSL_issetugid().
5595 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5596 due to incorrect handling of multi-threading:
5598 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5600 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5602 3. Count how many times MemCheck_off() has been called so that
5603 nested use can be treated correctly. This also avoids
5604 inband-signalling in the previous code (which relied on the
5605 assumption that thread ID 0 is impossible).
5608 *) Add "-rand" option also to s_client and s_server.
5611 *) Fix CPU detection on Irix 6.x.
5612 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5613 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5615 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5618 [This change does not apply to 0.9.7.]
5620 *) Use the cached encoding of an X509_NAME structure rather than
5621 copying it. This is apparently the reason for the libsafe "errors"
5622 but the code is actually correct.
5625 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5626 Bleichenbacher's DSA attack.
5627 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5628 to be set and top=0 forces the highest bit to be set; top=-1 is new
5629 and leaves the highest bit random.
5630 [Ulf Moeller, Bodo Moeller]
5632 *) In the NCONF_...-based implementations for CONF_... queries
5633 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5634 a temporary CONF structure with the data component set to NULL
5635 (which gives segmentation faults in lh_retrieve).
5636 Instead, use NULL for the CONF pointer in CONF_get_string and
5637 CONF_get_number (which may use environment variables) and directly
5638 return NULL from CONF_get_section.
5641 *) Fix potential buffer overrun for EBCDIC.
5644 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5645 keyUsage if basicConstraints absent for a CA.
5648 *) Make SMIME_write_PKCS7() write mail header values with a format that
5649 is more generally accepted (no spaces before the semicolon), since
5650 some programs can't parse those values properly otherwise. Also make
5651 sure BIO's that break lines after each write do not create invalid
5655 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5656 macros previously used would not encode an empty SEQUENCE OF
5657 and break the signature.
5659 [This change does not apply to 0.9.7.]
5661 *) Zero the premaster secret after deriving the master secret in
5665 *) Add some EVP_add_digest_alias registrations (as found in
5666 OpenSSL_add_all_digests()) to SSL_library_init()
5667 aka OpenSSL_add_ssl_algorithms(). This provides improved
5668 compatibility with peers using X.509 certificates
5669 with unconventional AlgorithmIdentifier OIDs.
5672 *) Fix for Irix with NO_ASM.
5673 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5675 *) ./config script fixes.
5676 [Ulf Moeller, Richard Levitte]
5678 *) Fix 'openssl passwd -1'.
5681 *) Change PKCS12_key_gen_asc() so it can cope with non null
5682 terminated strings whose length is passed in the passlen
5683 parameter, for example from PEM callbacks. This was done
5684 by adding an extra length parameter to asc2uni().
5685 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5687 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5688 call failed, free the DSA structure.
5691 *) Fix to uni2asc() to cope with zero length Unicode strings.
5692 These are present in some PKCS#12 files.
5695 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5696 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5697 when writing a 32767 byte record.
5698 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5700 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5701 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5703 (RSA objects have a reference count access to which is protected
5704 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5705 so they are meant to be shared between threads.)
5706 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5707 "Reddie, Steven" <Steven.Reddie@ca.com>]
5709 *) Fix a deadlock in CRYPTO_mem_leaks().
5712 *) Use better test patterns in bntest.
5715 *) rand_win.c fix for Borland C.
5718 *) BN_rshift bugfix for n == 0.
5721 *) Add a 'bctest' script that checks for some known 'bc' bugs
5722 so that 'make test' does not abort just because 'bc' is broken.
5725 *) Store verify_result within SSL_SESSION also for client side to
5726 avoid potential security hole. (Re-used sessions on the client side
5727 always resulted in verify_result==X509_V_OK, not using the original
5728 result of the server certificate verification.)
5731 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5732 SSL3_RT_APPLICATION_DATA, return 0.
5733 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5737 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5738 releases, have been re-implemented by renaming the previous
5739 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5740 and ssl3_read_internal, respectively, and adding 'peek' parameters
5741 to them. The new ssl[23]_{read,peek} functions are calls to
5742 ssl[23]_read_internal with the 'peek' flag set appropriately.
5743 A 'peek' parameter has also been added to ssl3_read_bytes, which
5744 does the actual work for ssl3_read_internal.
5747 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5748 the method-specific "init()" handler. Also clean up ex_data after
5749 calling the method-specific "finish()" handler. Previously, this was
5750 happening the other way round.
5753 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5754 The previous value, 12, was not always sufficient for BN_mod_exp().
5757 *) Make sure that shared libraries get the internal name engine with
5758 the full version number and not just 0. This should mark the
5759 shared libraries as not backward compatible. Of course, this should
5760 be changed again when we can guarantee backward binary compatibility.
5763 *) Fix typo in get_cert_by_subject() in by_dir.c
5764 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5766 *) Rework the system to generate shared libraries:
5768 - Make note of the expected extension for the shared libraries and
5769 if there is a need for symbolic links from for example libcrypto.so.0
5770 to libcrypto.so.0.9.7. There is extended info in Configure for
5773 - Make as few rebuilds of the shared libraries as possible.
5775 - Still avoid linking the OpenSSL programs with the shared libraries.
5777 - When installing, install the shared libraries separately from the
5781 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5783 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5784 and not in SSL_clear because the latter is also used by the
5785 accept/connect functions; previously, the settings made by
5786 SSL_set_read_ahead would be lost during the handshake.
5787 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5789 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5790 Previously, it would create entries for disableed algorithms no
5794 *) Added several new manual pages for SSL_* function.
5797 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5799 *) In ssl23_get_client_hello, generate an error message when faced
5800 with an initial SSL 3.0/TLS record that is too small to contain the
5801 first two bytes of the ClientHello message, i.e. client_version.
5802 (Note that this is a pathologic case that probably has never happened
5803 in real life.) The previous approach was to use the version number
5804 from the record header as a substitute; but our protocol choice
5805 should not depend on that one because it is not authenticated
5806 by the Finished messages.
5809 *) More robust randomness gathering functions for Windows.
5810 [Jeffrey Altman <jaltman@columbia.edu>]
5812 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5813 not set then we don't setup the error code for issuer check errors
5814 to avoid possibly overwriting other errors which the callback does
5815 handle. If an application does set the flag then we assume it knows
5816 what it is doing and can handle the new informational codes
5820 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5821 a general "ANY" type, as such it should be able to decode anything
5822 including tagged types. However it didn't check the class so it would
5823 wrongly interpret tagged types in the same way as their universal
5824 counterpart and unknown types were just rejected. Changed so that the
5825 tagged and unknown types are handled in the same way as a SEQUENCE:
5826 that is the encoding is stored intact. There is also a new type
5827 "V_ASN1_OTHER" which is used when the class is not universal, in this
5828 case we have no idea what the actual type is so we just lump them all
5832 *) On VMS, stdout may very well lead to a file that is written to
5833 in a record-oriented fashion. That means that every write() will
5834 write a separate record, which will be read separately by the
5835 programs trying to read from it. This can be very confusing.
5837 The solution is to put a BIO filter in the way that will buffer
5838 text until a linefeed is reached, and then write everything a
5839 line at a time, so every record written will be an actual line,
5840 not chunks of lines and not (usually doesn't happen, but I've
5841 seen it once) several lines in one record. BIO_f_linebuffer() is
5844 Currently, it's a VMS-only method, because that's where it has
5845 been tested well enough.
5848 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5849 it can return incorrect results.
5850 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5851 but it was in 0.9.6-beta[12].)
5854 *) Disable the check for content being present when verifying detached
5855 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5856 include zero length content when signing messages.
5859 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5860 BIO_ctrl (for BIO pairs).
5863 *) Add DSO method for VMS.
5866 *) Bug fix: Montgomery multiplication could produce results with the
5870 *) Add RPM specification openssl.spec and modify it to build three
5871 packages. The default package contains applications, application
5872 documentation and run-time libraries. The devel package contains
5873 include files, static libraries and function documentation. The
5874 doc package contains the contents of the doc directory. The original
5875 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5878 *) Add a large number of documentation files for many SSL routines.
5879 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5881 *) Add a configuration entry for Sony News 4.
5882 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5884 *) Don't set the two most significant bits to one when generating a
5885 random number < q in the DSA library.
5888 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5889 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5890 the underlying transport is blocking) if a handshake took place.
5891 (The default behaviour is needed by applications such as s_client
5892 and s_server that use select() to determine when to use SSL_read;
5893 but for applications that know in advance when to expect data, it
5894 just makes things more complicated.)
5897 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5901 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5902 work better on such systems.
5903 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5905 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5906 Update PKCS12_parse() so it copies the friendlyName and the
5907 keyid to the certificates aux info.
5910 *) Fix bug in PKCS7_verify() which caused an infinite loop
5911 if there was more than one signature.
5912 [Sven Uszpelkat <su@celocom.de>]
5914 *) Major change in util/mkdef.pl to include extra information
5915 about each symbol, as well as presentig variables as well
5916 as functions. This change means that there's n more need
5917 to rebuild the .num files when some algorithms are excluded.
5920 *) Allow the verify time to be set by an application,
5921 rather than always using the current time.
5924 *) Phase 2 verify code reorganisation. The certificate
5925 verify code now looks up an issuer certificate by a
5926 number of criteria: subject name, authority key id
5927 and key usage. It also verifies self signed certificates
5928 by the same criteria. The main comparison function is
5929 X509_check_issued() which performs these checks.
5931 Lot of changes were necessary in order to support this
5932 without completely rewriting the lookup code.
5934 Authority and subject key identifier are now cached.
5936 The LHASH 'certs' is X509_STORE has now been replaced
5937 by a STACK_OF(X509_OBJECT). This is mainly because an
5938 LHASH can't store or retrieve multiple objects with
5939 the same hash value.
5941 As a result various functions (which were all internal
5942 use only) have changed to handle the new X509_STORE
5943 structure. This will break anything that messed round
5944 with X509_STORE internally.
5946 The functions X509_STORE_add_cert() now checks for an
5947 exact match, rather than just subject name.
5949 The X509_STORE API doesn't directly support the retrieval
5950 of multiple certificates matching a given criteria, however
5951 this can be worked round by performing a lookup first
5952 (which will fill the cache with candidate certificates)
5953 and then examining the cache for matches. This is probably
5954 the best we can do without throwing out X509_LOOKUP
5955 entirely (maybe later...).
5957 The X509_VERIFY_CTX structure has been enhanced considerably.
5959 All certificate lookup operations now go via a get_issuer()
5960 callback. Although this currently uses an X509_STORE it
5961 can be replaced by custom lookups. This is a simple way
5962 to bypass the X509_STORE hackery necessary to make this
5963 work and makes it possible to use more efficient techniques
5964 in future. A very simple version which uses a simple
5965 STACK for its trusted certificate store is also provided
5966 using X509_STORE_CTX_trusted_stack().
5968 The verify_cb() and verify() callbacks now have equivalents
5969 in the X509_STORE_CTX structure.
5971 X509_STORE_CTX also has a 'flags' field which can be used
5972 to customise the verify behaviour.
5975 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5976 excludes S/MIME capabilities.
5979 *) When a certificate request is read in keep a copy of the
5980 original encoding of the signed data and use it when outputing
5981 again. Signatures then use the original encoding rather than
5982 a decoded, encoded version which may cause problems if the
5983 request is improperly encoded.
5986 *) For consistency with other BIO_puts implementations, call
5987 buffer_write(b, ...) directly in buffer_puts instead of calling
5990 In BIO_puts, increment b->num_write as in BIO_write.
5991 [Peter.Sylvester@EdelWeb.fr]
5993 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5994 BN_zero, we may not return a BIGNUM with an array consisting of
5998 *) Avoid calling abort() from within the library when problems are
5999 detected, except if preprocessor symbols have been defined
6000 (such as REF_CHECK, BN_DEBUG etc.).
6003 *) New openssl application 'rsautl'. This utility can be
6004 used for low level RSA operations. DER public key
6005 BIO/fp routines also added.
6008 *) New Configure entry and patches for compiling on QNX 4.
6009 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6011 *) A demo state-machine implementation was sponsored by
6012 Nuron (http://www.nuron.com/) and is now available in
6013 demos/state_machine.
6016 *) New options added to the 'dgst' utility for signature
6017 generation and verification.
6020 *) Unrecognized PKCS#7 content types are now handled via a
6021 catch all ASN1_TYPE structure. This allows unsupported
6022 types to be stored as a "blob" and an application can
6023 encode and decode it manually.
6026 *) Fix various signed/unsigned issues to make a_strex.c
6028 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6030 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6031 length if passed a buffer. ASN1_INTEGER_to_BN failed
6032 if passed a NULL BN and its argument was negative.
6033 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6035 *) Modification to PKCS#7 encoding routines to output definite
6036 length encoding. Since currently the whole structures are in
6037 memory there's not real point in using indefinite length
6038 constructed encoding. However if OpenSSL is compiled with
6039 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6042 *) Added BIO_vprintf() and BIO_vsnprintf().
6045 *) Added more prefixes to parse for in the the strings written
6046 through a logging bio, to cover all the levels that are available
6047 through syslog. The prefixes are now:
6049 PANIC, EMERG, EMR => LOG_EMERG
6050 ALERT, ALR => LOG_ALERT
6051 CRIT, CRI => LOG_CRIT
6052 ERROR, ERR => LOG_ERR
6053 WARNING, WARN, WAR => LOG_WARNING
6054 NOTICE, NOTE, NOT => LOG_NOTICE
6055 INFO, INF => LOG_INFO
6056 DEBUG, DBG => LOG_DEBUG
6058 and as before, if none of those prefixes are present at the
6059 beginning of the string, LOG_ERR is chosen.
6061 On Win32, the LOG_* levels are mapped according to this:
6063 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6064 LOG_WARNING => EVENTLOG_WARNING_TYPE
6065 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6069 *) Made it possible to reconfigure with just the configuration
6070 argument "reconf" or "reconfigure". The command line arguments
6071 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6072 and are retrieved from there when reconfiguring.
6076 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6078 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6081 *) The obj_dat.pl script was messing up the sorting of object
6082 names. The reason was that it compared the quoted version
6083 of strings as a result "OCSP" > "OCSP Signing" because
6084 " > SPACE. Changed script to store unquoted versions of
6085 names and add quotes on output. It was also omitting some
6086 names from the lookup table if they were given a default
6087 value (that is if SN is missing it is given the same
6088 value as LN and vice versa), these are now added on the
6089 grounds that if an object has a name we should be able to
6090 look it up. Finally added warning output when duplicate
6091 short or long names are found.
6094 *) Changes needed for Tandem NSK.
6095 [Scott Uroff <scott@xypro.com>]
6097 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6098 RSA_padding_check_SSLv23(), special padding was never detected
6099 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6100 version rollback attacks was not effective.
6102 In s23_clnt.c, don't use special rollback-attack detection padding
6103 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6104 client; similarly, in s23_srvr.c, don't do the rollback check if
6105 SSL 2.0 is the only protocol enabled in the server.
6108 *) Make it possible to get hexdumps of unprintable data with 'openssl
6109 asn1parse'. By implication, the functions ASN1_parse_dump() and
6110 BIO_dump_indent() are added.
6113 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6114 these print out strings and name structures based on various
6115 flags including RFC2253 support and proper handling of
6116 multibyte characters. Added options to the 'x509' utility
6117 to allow the various flags to be set.
6120 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6121 Also change the functions X509_cmp_current_time() and
6122 X509_gmtime_adj() work with an ASN1_TIME structure,
6123 this will enable certificates using GeneralizedTime in validity
6124 dates to be checked.
6127 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6128 negative public key encodings) on by default,
6129 NO_NEG_PUBKEY_BUG can be set to disable it.
6132 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6133 content octets. An i2c_ASN1_OBJECT is unnecessary because
6134 the encoding can be trivially obtained from the structure.
6137 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6138 not read locks (CRYPTO_r_[un]lock).
6141 *) A first attempt at creating official support for shared
6142 libraries through configuration. I've kept it so the
6143 default is static libraries only, and the OpenSSL programs
6144 are always statically linked for now, but there are
6145 preparations for dynamic linking in place.
6146 This has been tested on Linux and Tru64.
6149 *) Randomness polling function for Win9x, as described in:
6150 Peter Gutmann, Software Generation of Practically Strong
6154 *) Fix so PRNG is seeded in req if using an already existing
6158 *) New options to smime application. -inform and -outform
6159 allow alternative formats for the S/MIME message including
6160 PEM and DER. The -content option allows the content to be
6161 specified separately. This should allow things like Netscape
6162 form signing output easier to verify.
6165 *) Fix the ASN1 encoding of tags using the 'long form'.
6168 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6169 STRING types. These convert content octets to and from the
6170 underlying type. The actual tag and length octets are
6171 already assumed to have been read in and checked. These
6172 are needed because all other string types have virtually
6173 identical handling apart from the tag. By having versions
6174 of the ASN1 functions that just operate on content octets
6175 IMPLICIT tagging can be handled properly. It also allows
6176 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6177 and ASN1_INTEGER are identical apart from the tag.
6180 *) Change the handling of OID objects as follows:
6182 - New object identifiers are inserted in objects.txt, following
6183 the syntax given in objects.README.
6184 - objects.pl is used to process obj_mac.num and create a new
6186 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6189 This is currently kind of a hack, and the perl code in objects.pl
6190 isn't very elegant, but it works as I intended. The simplest way
6191 to check that it worked correctly is to look in obj_dat.h and
6192 check the array nid_objs and make sure the objects haven't moved
6193 around (this is important!). Additions are OK, as well as
6194 consistent name changes.
6197 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6200 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6201 The given file adds to whatever has already been seeded into the
6202 random pool through the RANDFILE configuration file option or
6203 environment variable, or the default random state file.
6206 *) mkstack.pl now sorts each macro group into lexical order.
6207 Previously the output order depended on the order the files
6208 appeared in the directory, resulting in needless rewriting
6212 *) Patches to make OpenSSL compile under Win32 again. Mostly
6213 work arounds for the VC++ problem that it treats func() as
6214 func(void). Also stripped out the parts of mkdef.pl that
6215 added extra typesafe functions: these no longer exist.
6218 *) Reorganisation of the stack code. The macros are now all
6219 collected in safestack.h . Each macro is defined in terms of
6220 a "stack macro" of the form SKM_<name>(type, a, b). The
6221 DEBUG_SAFESTACK is now handled in terms of function casts,
6222 this has the advantage of retaining type safety without the
6223 use of additional functions. If DEBUG_SAFESTACK is not defined
6224 then the non typesafe macros are used instead. Also modified the
6225 mkstack.pl script to handle the new form. Needs testing to see
6226 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6227 the default if no major problems. Similar behaviour for ASN1_SET_OF
6228 and PKCS12_STACK_OF.
6231 *) When some versions of IIS use the 'NET' form of private key the
6232 key derivation algorithm is different. Normally MD5(password) is
6233 used as a 128 bit RC4 key. In the modified case
6234 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6235 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6236 as the old Netscape_RSA functions except they have an additional
6237 'sgckey' parameter which uses the modified algorithm. Also added
6238 an -sgckey command line option to the rsa utility. Thanks to
6239 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6240 algorithm to openssl-dev.
6243 *) The evp_local.h macros were using 'c.##kname' which resulted in
6244 invalid expansion on some systems (SCO 5.0.5 for example).
6245 Corrected to 'c.kname'.
6246 [Phillip Porch <root@theporch.com>]
6248 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6249 a STACK of email addresses from a certificate or request, these look
6250 in the subject name and the subject alternative name extensions and
6251 omit any duplicate addresses.
6254 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6255 This makes DSA verification about 2 % faster.
6258 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6259 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6260 plus overhead for 1024 bit moduli).
6261 This makes exponentiations about 0.5 % faster for 1024 bit
6262 exponents (as measured by "openssl speed rsa2048").
6265 *) Rename memory handling macros to avoid conflicts with other
6267 Malloc => OPENSSL_malloc
6268 Malloc_locked => OPENSSL_malloc_locked
6269 Realloc => OPENSSL_realloc
6270 Free => OPENSSL_free
6273 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6274 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6277 *) CygWin32 support.
6278 [John Jarvie <jjarvie@newsguy.com>]
6280 *) The type-safe stack code has been rejigged. It is now only compiled
6281 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6282 by default all type-specific stack functions are "#define"d back to
6283 standard stack functions. This results in more streamlined output
6284 but retains the type-safety checking possibilities of the original
6288 *) The STACK code has been cleaned up, and certain type declarations
6289 that didn't make a lot of sense have been brought in line. This has
6290 also involved a cleanup of sorts in safestack.h to more correctly
6291 map type-safe stack functions onto their plain stack counterparts.
6292 This work has also resulted in a variety of "const"ifications of
6293 lots of the code, especially "_cmp" operations which should normally
6294 be prototyped with "const" parameters anyway.
6297 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6298 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6299 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6300 where all of 'md' is used each time the PRNG is used, but 'state'
6301 is used only indexed by a cyclic counter. As entropy may not be
6302 well distributed from the beginning, 'md' is important as a
6303 chaining variable. However, the output function chains only half
6304 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6305 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6306 in all of 'state' being rewritten, with the new values depending
6307 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6310 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6311 the handshake is continued after ssl_verify_cert_chain();
6312 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6313 can lead to 'unexplainable' connection aborts later.
6314 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6316 *) Major EVP API cipher revision.
6317 Add hooks for extra EVP features. This allows various cipher
6318 parameters to be set in the EVP interface. Support added for variable
6319 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6320 setting of RC2 and RC5 parameters.
6322 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6325 Remove lots of duplicated code from the EVP library. For example *every*
6326 cipher init() function handles the 'iv' in the same way according to the
6327 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6328 for CFB and OFB modes they zero ctx->num.
6330 New functionality allows removal of S/MIME code RC2 hack.
6332 Most of the routines have the same form and so can be declared in terms
6335 By shifting this to the top level EVP_CipherInit() it can be removed from
6336 all individual ciphers. If the cipher wants to handle IVs or keys
6337 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6340 Change lots of functions like EVP_EncryptUpdate() to now return a
6341 value: although software versions of the algorithms cannot fail
6342 any installed hardware versions can.
6345 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6346 this option is set, tolerate broken clients that send the negotiated
6347 protocol version number instead of the requested protocol version
6351 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6352 i.e. non-zero for export ciphersuites, zero otherwise.
6353 Previous versions had this flag inverted, inconsistent with
6354 rsa_tmp_cb (..._TMP_RSA_CB).
6355 [Bodo Moeller; problem reported by Amit Chopra]
6357 *) Add missing DSA library text string. Work around for some IIS
6358 key files with invalid SEQUENCE encoding.
6361 *) Add a document (doc/standards.txt) that list all kinds of standards
6362 and so on that are implemented in OpenSSL.
6365 *) Enhance c_rehash script. Old version would mishandle certificates
6366 with the same subject name hash and wouldn't handle CRLs at all.
6367 Added -fingerprint option to crl utility, to support new c_rehash
6371 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6374 *) Fix for SSL server purpose checking. Server checking was
6375 rejecting certificates which had extended key usage present
6376 but no ssl client purpose.
6377 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6379 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6380 is a little unclear about how a blank password is handled.
6381 Since the password in encoded as a BMPString with terminating
6382 double NULL a zero length password would end up as just the
6383 double NULL. However no password at all is different and is
6384 handled differently in the PKCS#12 key generation code. NS
6385 treats a blank password as zero length. MSIE treats it as no
6386 password on export: but it will try both on import. We now do
6387 the same: PKCS12_parse() tries zero length and no password if
6388 the password is set to "" or NULL (NULL is now a valid password:
6389 it wasn't before) as does the pkcs12 application.
6392 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6393 perror when PEM_read_bio_X509_REQ fails, the error message must
6394 be obtained from the error queue.
6397 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6398 it in ERR_remove_state if appropriate, and change ERR_get_state
6399 accordingly to avoid race conditions (this is necessary because
6400 thread_hash is no longer constant once set).
6403 *) Bugfix for linux-elf makefile.one.
6406 *) RSA_get_default_method() will now cause a default
6407 RSA_METHOD to be chosen if one doesn't exist already.
6408 Previously this was only set during a call to RSA_new()
6409 or RSA_new_method(NULL) meaning it was possible for
6410 RSA_get_default_method() to return NULL.
6413 *) Added native name translation to the existing DSO code
6414 that will convert (if the flag to do so is set) filenames
6415 that are sufficiently small and have no path information
6416 into a canonical native form. Eg. "blah" converted to
6417 "libblah.so" or "blah.dll" etc.
6420 *) New function ERR_error_string_n(e, buf, len) which is like
6421 ERR_error_string(e, buf), but writes at most 'len' bytes
6422 including the 0 terminator. For ERR_error_string_n, 'buf'
6424 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6426 *) CONF library reworked to become more general. A new CONF
6427 configuration file reader "class" is implemented as well as a
6428 new functions (NCONF_*, for "New CONF") to handle it. The now
6429 old CONF_* functions are still there, but are reimplemented to
6430 work in terms of the new functions. Also, a set of functions
6431 to handle the internal storage of the configuration data is
6432 provided to make it easier to write new configuration file
6433 reader "classes" (I can definitely see something reading a
6434 configuration file in XML format, for example), called _CONF_*,
6435 or "the configuration storage API"...
6437 The new configuration file reading functions are:
6439 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6440 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6442 NCONF_default, NCONF_WIN32
6444 NCONF_dump_fp, NCONF_dump_bio
6446 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6447 NCONF_new creates a new CONF object. This works in the same way
6448 as other interfaces in OpenSSL, like the BIO interface.
6449 NCONF_dump_* dump the internal storage of the configuration file,
6450 which is useful for debugging. All other functions take the same
6451 arguments as the old CONF_* functions wth the exception of the
6452 first that must be a `CONF *' instead of a `LHASH *'.
6454 To make it easer to use the new classes with the old CONF_* functions,
6455 the function CONF_set_default_method is provided.
6458 *) Add '-tls1' option to 'openssl ciphers', which was already
6459 mentioned in the documentation but had not been implemented.
6460 (This option is not yet really useful because even the additional
6461 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6464 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6465 OpenSSL-based applications) load shared libraries and bind to
6466 them in a portable way.
6467 [Geoff Thorpe, with contributions from Richard Levitte]
6469 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6471 *) Make sure _lrotl and _lrotr are only used with MSVC.
6473 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6474 (the default implementation of RAND_status).
6476 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6477 to '-clrext' (= clear extensions), as intended and documented.
6478 [Bodo Moeller; inconsistency pointed out by Michael Attili
6481 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6482 was larger than the MD block size.
6483 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6485 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6486 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6487 using the passed key: if the passed key was a private key the result
6488 of X509_print(), for example, would be to print out all the private key
6492 *) des_quad_cksum() byte order bug fix.
6493 [Ulf Möller, using the problem description in krb4-0.9.7, where
6494 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6496 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6498 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6500 *) For easily testing in shell scripts whether some command
6501 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6502 returns with exit code 0 iff no command of the given name is available.
6503 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6504 the output goes to stdout and nothing is printed to stderr.
6505 Additional arguments are always ignored.
6507 Since for each cipher there is a command of the same name,
6508 the 'no-cipher' compilation switches can be tested this way.
6510 ('openssl no-XXX' is not able to detect pseudo-commands such
6511 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6514 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6517 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6518 is set; it will be thrown away anyway because each handshake creates
6520 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6521 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6522 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6523 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6526 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6527 'Q' and 'R' lose their special meanings (quit/renegotiate).
6528 This is part of what -quiet does; unlike -quiet, -ign_eof
6529 does not suppress any output.
6532 *) Add compatibility options to the purpose and trust code. The
6533 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6534 accepts a certificate or CA, this was the previous behaviour,
6535 with all the associated security issues.
6537 X509_TRUST_COMPAT is the old trust behaviour: only and
6538 automatically trust self signed roots in certificate store. A
6539 new trust setting X509_TRUST_DEFAULT is used to specify that
6540 a purpose has no associated trust setting and it should instead
6541 use the value in the default purpose.
6544 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6545 and fix a memory leak.
6548 *) In util/mkerr.pl (which implements 'make errors'), preserve
6549 reason strings from the previous version of the .c file, as
6550 the default to have only downcase letters (and digits) in
6551 automatically generated reasons codes is not always appropriate.
6554 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6555 using strerror. Previously, ERR_reason_error_string() returned
6556 library names as reason strings for SYSerr; but SYSerr is a special
6557 case where small numbers are errno values, not library numbers.
6560 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6561 converts DSA parameters into DH parameters. (When creating parameters,
6562 DSA_generate_parameters is used.)
6565 *) Include 'length' (recommended exponent length) in C code generated
6566 by 'openssl dhparam -C'.
6569 *) The second argument to set_label in perlasm was already being used
6570 so couldn't be used as a "file scope" flag. Moved to third argument
6574 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6575 instead of RAND_bytes for encryption IVs and salts.
6578 *) Include RAND_status() into RAND_METHOD instead of implementing
6579 it only for md_rand.c Otherwise replacing the PRNG by calling
6580 RAND_set_rand_method would be impossible.
6583 *) Don't let DSA_generate_key() enter an infinite loop if the random
6584 number generation fails.
6587 *) New 'rand' application for creating pseudo-random output.
6590 *) Added configuration support for Linux/IA64
6591 [Rolf Haberrecker <rolf@suse.de>]
6593 *) Assembler module support for Mingw32.
6596 *) Shared library support for HPUX (in shlib/).
6597 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6599 *) Shared library support for Solaris gcc.
6600 [Lutz Behnke <behnke@trustcenter.de>]
6602 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6604 *) PKCS7_encrypt() was adding text MIME headers twice because they
6605 were added manually and by SMIME_crlf_copy().
6608 *) In bntest.c don't call BN_rand with zero bits argument.
6609 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6611 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6612 case was implemented. This caused BN_div_recp() to fail occasionally.
6615 *) Add an optional second argument to the set_label() in the perl
6616 assembly language builder. If this argument exists and is set
6617 to 1 it signals that the assembler should use a symbol whose
6618 scope is the entire file, not just the current function. This
6619 is needed with MASM which uses the format label:: for this scope.
6620 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6622 *) Change the ASN1 types so they are typedefs by default. Before
6623 almost all types were #define'd to ASN1_STRING which was causing
6624 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6628 *) Change names of new functions to the new get1/get0 naming
6629 convention: After 'get1', the caller owns a reference count
6630 and has to call ..._free; 'get0' returns a pointer to some
6631 data structure without incrementing reference counters.
6632 (Some of the existing 'get' functions increment a reference
6633 counter, some don't.)
6634 Similarly, 'set1' and 'add1' functions increase reference
6635 counters or duplicate objects.
6638 *) Allow for the possibility of temp RSA key generation failure:
6639 the code used to assume it always worked and crashed on failure.
6642 *) Fix potential buffer overrun problem in BIO_printf().
6643 [Ulf Möller, using public domain code by Patrick Powell; problem
6644 pointed out by David Sacerdote <das33@cornell.edu>]
6646 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6647 RAND_egd() and RAND_status(). In the command line application,
6648 the EGD socket can be specified like a seed file using RANDFILE
6652 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6653 Some CAs (e.g. Verisign) distribute certificates in this form.
6656 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6657 list to exclude them. This means that no special compilation option
6658 is needed to use anonymous DH: it just needs to be included in the
6662 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6663 EVP_MD_type. The old functionality is available in a new macro called
6664 EVP_MD_md(). Change code that uses it and update docs.
6667 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6668 where the 'void *' argument is replaced by a function pointer argument.
6669 Previously 'void *' was abused to point to functions, which works on
6670 many platforms, but is not correct. As these functions are usually
6671 called by macros defined in OpenSSL header files, most source code
6672 should work without changes.
6675 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6676 sections with information on -D... compiler switches used for
6677 compiling the library so that applications can see them. To enable
6678 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6679 must be defined. E.g.,
6680 #define OPENSSL_ALGORITHM_DEFINES
6681 #include <openssl/opensslconf.h>
6682 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6683 [Richard Levitte, Ulf and Bodo Möller]
6685 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6689 *) Change the 'other' type in certificate aux info to a STACK_OF
6690 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6691 the required ASN1 format: arbitrary types determined by an OID.
6694 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6695 argument to 'req'. This is not because the function is newer or
6696 better than others it just uses the work 'NEW' in the certificate
6697 request header lines. Some software needs this.
6700 *) Reorganise password command line arguments: now passwords can be
6701 obtained from various sources. Delete the PEM_cb function and make
6702 it the default behaviour: i.e. if the callback is NULL and the
6703 usrdata argument is not NULL interpret it as a null terminated pass
6704 phrase. If usrdata and the callback are NULL then the pass phrase
6705 is prompted for as usual.
6708 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6709 the support is automatically enabled. The resulting binaries will
6710 autodetect the card and use it if present.
6711 [Ben Laurie and Compaq Inc.]
6713 *) Work around for Netscape hang bug. This sends certificate request
6714 and server done in one record. Since this is perfectly legal in the
6715 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6716 the bugs/SSLv3 entry for more info.
6719 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6722 *) Add -rand argument to smime and pkcs12 applications and read/write
6726 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6729 *) Add command line password options to the remaining applications.
6732 *) Bug fix for BN_div_recp() for numerators with an even number of
6736 *) More tests in bntest.c, and changed test_bn output.
6739 *) ./config recognizes MacOS X now.
6742 *) Bug fix for BN_div() when the first words of num and divsor are
6743 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6746 *) Add support for various broken PKCS#8 formats, and command line
6747 options to produce them.
6750 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6751 get temporary BIGNUMs from a BN_CTX.
6754 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6758 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6759 include a #define from the old name to the new. The original intent
6760 was that statically linked binaries could for example just call
6761 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6762 link with digests. This never worked becayse SSLeay_add_all_digests()
6763 and SSLeay_add_all_ciphers() were in the same source file so calling
6764 one would link with the other. They are now in separate source files.
6767 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6770 *) Use a less unusual form of the Miller-Rabin primality test (it used
6771 a binary algorithm for exponentiation integrated into the Miller-Rabin
6772 loop, our standard modexp algorithms are faster).
6775 *) Support for the EBCDIC character set completed.
6776 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6778 *) Source code cleanups: use const where appropriate, eliminate casts,
6779 use void * instead of char * in lhash.
6782 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6783 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6784 this the server could overwrite ephemeral keys that the client
6788 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6789 using 50 iterations of the Rabin-Miller test.
6791 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6792 iterations of the Rabin-Miller test as required by the appendix
6793 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6794 As BN_is_prime_fasttest includes trial division, DSA parameter
6795 generation becomes much faster.
6797 This implies a change for the callback functions in DSA_is_prime
6798 and DSA_generate_parameters: The callback function is called once
6799 for each positive witness in the Rabin-Miller test, not just
6800 occasionally in the inner loop; and the parameters to the
6801 callback function now provide an iteration count for the outer
6802 loop rather than for the current invocation of the inner loop.
6803 DSA_generate_parameters additionally can call the callback
6804 function with an 'iteration count' of -1, meaning that a
6805 candidate has passed the trial division test (when q is generated
6806 from an application-provided seed, trial division is skipped).
6809 *) New function BN_is_prime_fasttest that optionally does trial
6810 division before starting the Rabin-Miller test and has
6811 an additional BN_CTX * argument (whereas BN_is_prime always
6812 has to allocate at least one BN_CTX).
6813 'callback(1, -1, cb_arg)' is called when a number has passed the
6814 trial division stage.
6817 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6821 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6824 *) New function BN_pseudo_rand().
6827 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6828 bignum version of BN_from_montgomery() with the working code from
6829 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6833 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6834 made it impossible to use the same SSL_SESSION data structure in
6835 SSL2 clients in multiple threads.
6838 *) The return value of RAND_load_file() no longer counts bytes obtained
6839 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6840 to seed the PRNG (previously an explicit byte count was required).
6841 [Ulf Möller, Bodo Möller]
6843 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6844 used (char *) instead of (void *) and had casts all over the place.
6847 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6850 *) Retain source code compatibility for BN_prime_checks macro:
6851 BN_is_prime(..., BN_prime_checks, ...) now uses
6852 BN_prime_checks_for_size to determine the appropriate number of
6853 Rabin-Miller iterations.
6856 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6857 DH_CHECK_P_NOT_SAFE_PRIME.
6858 (Check if this is true? OpenPGP calls them "strong".)
6861 *) Merge the functionality of "dh" and "gendh" programs into a new program
6862 "dhparam". The old programs are retained for now but will handle DH keys
6863 (instead of parameters) in future.
6866 *) Make the ciphers, s_server and s_client programs check the return values
6867 when a new cipher list is set.
6870 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6871 ciphers. Before when the 56bit ciphers were enabled the sorting was
6874 The syntax for the cipher sorting has been extended to support sorting by
6875 cipher-strength (using the strength_bits hard coded in the tables).
6876 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6878 Fix a bug in the cipher-command parser: when supplying a cipher command
6879 string with an "undefined" symbol (neither command nor alphanumeric
6880 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6881 an error is flagged.
6883 Due to the strength-sorting extension, the code of the
6884 ssl_create_cipher_list() function was completely rearranged. I hope that
6885 the readability was also increased :-)
6886 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6888 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6889 for the first serial number and places 2 in the serial number file. This
6890 avoids problems when the root CA is created with serial number zero and
6891 the first user certificate has the same issuer name and serial number
6895 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6896 the new code. Add documentation for this stuff.
6899 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6900 X509_*() to X509at_*() on the grounds that they don't handle X509
6901 structures and behave in an analagous way to the X509v3 functions:
6902 they shouldn't be called directly but wrapper functions should be used
6905 So we also now have some wrapper functions that call the X509at functions
6906 when passed certificate requests. (TO DO: similar things can be done with
6907 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6908 things. Some of these need some d2i or i2d and print functionality
6909 because they handle more complex structures.)
6912 *) Add missing #ifndefs that caused missing symbols when building libssl
6913 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6914 NO_RSA in ssl/s2*.c.
6915 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6917 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6918 has a return value which indicates the quality of the random data
6919 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6920 error queue. New function RAND_pseudo_bytes() generates output that is
6921 guaranteed to be unique but not unpredictable. RAND_add is like
6922 RAND_seed, but takes an extra argument for an entropy estimate
6923 (RAND_seed always assumes full entropy).
6926 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6927 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6928 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6929 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6930 false-positive rate of at most 2^-80 for random input.
6933 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6936 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6937 in the 0.9.5 release), this returns the chain
6938 from an X509_CTX structure with a dup of the stack and all
6939 the X509 reference counts upped: so the stack will exist
6940 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6943 Also make SSL_SESSION_print() print out the verify return
6947 *) Add manpage for the pkcs12 command. Also change the default
6948 behaviour so MAC iteration counts are used unless the new
6949 -nomaciter option is used. This improves file security and
6950 only older versions of MSIE (4.0 for example) need it.
6953 *) Honor the no-xxx Configure options when creating .DEF files.
6956 *) Add PKCS#10 attributes to field table: challengePassword,
6957 unstructuredName and unstructuredAddress. These are taken from
6958 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6959 international characters are used.
6961 More changes to X509_ATTRIBUTE code: allow the setting of types
6962 based on strings. Remove the 'loc' parameter when adding
6963 attributes because these will be a SET OF encoding which is sorted
6967 *) Initial changes to the 'req' utility to allow request generation
6968 automation. This will allow an application to just generate a template
6969 file containing all the field values and have req construct the
6972 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6973 used all over the place including certificate requests and PKCS#7
6974 structures. They are currently handled manually where necessary with
6975 some primitive wrappers for PKCS#7. The new functions behave in a
6976 manner analogous to the X509 extension functions: they allow
6977 attributes to be looked up by NID and added.
6979 Later something similar to the X509V3 code would be desirable to
6980 automatically handle the encoding, decoding and printing of the
6981 more complex types. The string types like challengePassword can
6982 be handled by the string table functions.
6984 Also modified the multi byte string table handling. Now there is
6985 a 'global mask' which masks out certain types. The table itself
6986 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6987 is useful when for example there is only one permissible type
6988 (as in countryName) and using the mask might result in no valid
6992 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6993 SSL_get_peer_finished to allow applications to obtain the latest
6994 Finished messages sent to the peer or expected from the peer,
6995 respectively. (SSL_get_peer_finished is usually the Finished message
6996 actually received from the peer, otherwise the protocol will be aborted.)
6998 As the Finished message are message digests of the complete handshake
6999 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7000 be used for external authentication procedures when the authentication
7001 provided by SSL/TLS is not desired or is not enough.
7004 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7005 the host supports BWX extension and if Compaq C is present on the
7006 $PATH. Just exploiting of the BWX extension results in 20-30%
7007 performance kick for some algorithms, e.g. DES and RC4 to mention
7008 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7012 *) Add support for MS "fast SGC". This is arguably a violation of the
7013 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7014 weak crypto and after checking the certificate is SGC a second one
7015 with strong crypto. MS SGC stops the first handshake after receiving
7016 the server certificate message and sends a second client hello. Since
7017 a server will typically do all the time consuming operations before
7018 expecting any further messages from the client (server key exchange
7019 is the most expensive) there is little difference between the two.
7021 To get OpenSSL to support MS SGC we have to permit a second client
7022 hello message after we have sent server done. In addition we have to
7023 reset the MAC if we do get this second client hello.
7026 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7027 if a DER encoded private key is RSA or DSA traditional format. Changed
7028 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7029 format DER encoded private key. Newer code should use PKCS#8 format which
7030 has the key type encoded in the ASN1 structure. Added DER private key
7031 support to pkcs8 application.
7034 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7035 ciphersuites has been selected (as required by the SSL 3/TLS 1
7036 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7037 is set, we interpret this as a request to violate the specification
7038 (the worst that can happen is a handshake failure, and 'correct'
7039 behaviour would result in a handshake failure anyway).
7042 *) In SSL_CTX_add_session, take into account that there might be multiple
7043 SSL_SESSION structures with the same session ID (e.g. when two threads
7044 concurrently obtain them from an external cache).
7045 The internal cache can handle only one SSL_SESSION with a given ID,
7046 so if there's a conflict, we now throw out the old one to achieve
7050 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7051 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7052 some routines that use cipher OIDs: some ciphers do not have OIDs
7053 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7057 *) Simplify the trust setting structure and code. Now we just have
7058 two sequences of OIDs for trusted and rejected settings. These will
7059 typically have values the same as the extended key usage extension
7060 and any application specific purposes.
7062 The trust checking code now has a default behaviour: it will just
7063 check for an object with the same NID as the passed id. Functions can
7064 be provided to override either the default behaviour or the behaviour
7065 for a given id. SSL client, server and email already have functions
7066 in place for compatibility: they check the NID and also return "trusted"
7067 if the certificate is self signed.
7070 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7071 traditional format into an EVP_PKEY structure.
7074 *) Add a password callback function PEM_cb() which either prompts for
7075 a password if usr_data is NULL or otherwise assumes it is a null
7076 terminated password. Allow passwords to be passed on command line
7077 environment or config files in a few more utilities.
7080 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7081 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7082 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7083 Update documentation.
7086 *) Support for ASN1 "NULL" type. This could be handled before by using
7087 ASN1_TYPE but there wasn't any function that would try to read a NULL
7088 and produce an error if it couldn't. For compatibility we also have
7089 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7090 don't allocate anything because they don't need to.
7093 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7095 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7097 *) Rebuild of the memory allocation routines used by OpenSSL code and
7098 possibly others as well. The purpose is to make an interface that
7099 provide hooks so anyone can build a separate set of allocation and
7100 deallocation routines to be used by OpenSSL, for example memory
7101 pool implementations, or something else, which was previously hard
7102 since Malloc(), Realloc() and Free() were defined as macros having
7103 the values malloc, realloc and free, respectively (except for Win32
7104 compilations). The same is provided for memory debugging code.
7105 OpenSSL already comes with functionality to find memory leaks, but
7106 this gives people a chance to debug other memory problems.
7108 With these changes, a new set of functions and macros have appeared:
7110 CRYPTO_set_mem_debug_functions() [F]
7111 CRYPTO_get_mem_debug_functions() [F]
7112 CRYPTO_dbg_set_options() [F]
7113 CRYPTO_dbg_get_options() [F]
7114 CRYPTO_malloc_debug_init() [M]
7116 The memory debug functions are NULL by default, unless the library
7117 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7118 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7119 gives the standard debugging functions that come with OpenSSL) or
7120 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7121 provided by the library user) must be used. When the standard
7122 debugging functions are used, CRYPTO_dbg_set_options can be used to
7123 request additional information:
7124 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7125 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7127 Also, things like CRYPTO_set_mem_functions will always give the
7128 expected result (the new set of functions is used for allocation
7129 and deallocation) at all times, regardless of platform and compiler
7132 To finish it up, some functions that were never use in any other
7133 way than through macros have a new API and new semantic:
7136 CRYPTO_dbg_realloc()
7139 All macros of value have retained their old syntax.
7140 [Richard Levitte and Bodo Moeller]
7142 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7143 ordering of SMIMECapabilities wasn't in "strength order" and there
7144 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7148 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7149 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7150 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7152 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7153 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7154 functionality to handle multipart/signed properly) and a utility
7155 called 'smime' to call all this stuff. This is based on code I
7156 originally wrote for Celo who have kindly allowed it to be
7157 included in OpenSSL.
7160 *) Add variants des_set_key_checked and des_set_key_unchecked of
7161 des_set_key (aka des_key_sched). Global variable des_check_key
7162 decides which of these is called by des_set_key; this way
7163 des_check_key behaves as it always did, but applications and
7164 the library itself, which was buggy for des_check_key == 1,
7165 have a cleaner way to pick the version they need.
7168 *) New function PKCS12_newpass() which changes the password of a
7172 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7173 dynamic mix. In both cases the ids can be used as an index into the
7174 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7175 functions so they accept a list of the field values and the
7176 application doesn't need to directly manipulate the X509_TRUST
7180 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7184 *) Modify the way the V3 extension code looks up extensions. This now
7185 works in a similar way to the object code: we have some "standard"
7186 extensions in a static table which is searched with OBJ_bsearch()
7187 and the application can add dynamic ones if needed. The file
7188 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7189 updated whenever a new extension is added to the core code and kept
7190 in ext_nid order. There is a simple program 'tabtest.c' which checks
7191 this. New extensions are not added too often so this file can readily
7192 be maintained manually.
7194 There are two big advantages in doing things this way. The extensions
7195 can be looked up immediately and no longer need to be "added" using
7196 X509V3_add_standard_extensions(): this function now does nothing.
7197 [Side note: I get *lots* of email saying the extension code doesn't
7198 work because people forget to call this function]
7199 Also no dynamic allocation is done unless new extensions are added:
7200 so if we don't add custom extensions there is no need to call
7201 X509V3_EXT_cleanup().
7204 *) Modify enc utility's salting as follows: make salting the default. Add a
7205 magic header, so unsalted files fail gracefully instead of just decrypting
7206 to garbage. This is because not salting is a big security hole, so people
7207 should be discouraged from doing it.
7210 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7211 digest to be passed on the command line but it only used this
7212 parameter when signing a certificate. Modified so all relevant
7213 operations are affected by the digest parameter including the
7214 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7215 DSA key was used because it didn't fix the digest.
7218 *) Initial certificate chain verify code. Currently tests the untrusted
7219 certificates for consistency with the verify purpose (which is set
7220 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7222 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7223 this is because it will reject chains with invalid extensions whereas
7224 every previous version of OpenSSL and SSLeay made no checks at all.
7226 Trust code: checks the root CA for the relevant trust settings. Trust
7227 settings have an initial value consistent with the verify purpose: e.g.
7228 if the verify purpose is for SSL client use it expects the CA to be
7229 trusted for SSL client use. However the default value can be changed to
7230 permit custom trust settings: one example of this would be to only trust
7231 certificates from a specific "secure" set of CAs.
7233 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7234 which should be used for version portability: especially since the
7235 verify structure is likely to change more often now.
7237 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7238 to set them. If not set then assume SSL clients will verify SSL servers
7241 Two new options to the verify program: -untrusted allows a set of
7242 untrusted certificates to be passed in and -purpose which sets the
7243 intended purpose of the certificate. If a purpose is set then the
7244 new chain verify code is used to check extension consistency.
7247 *) Support for the authority information access extension.
7250 *) Modify RSA and DSA PEM read routines to transparently handle
7251 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7252 public keys in a format compatible with certificate
7253 SubjectPublicKeyInfo structures. Unfortunately there were already
7254 functions called *_PublicKey_* which used various odd formats so
7255 these are retained for compatibility: however the DSA variants were
7256 never in a public release so they have been deleted. Changed dsa/rsa
7257 utilities to handle the new format: note no releases ever handled public
7258 keys so we should be OK.
7260 The primary motivation for this change is to avoid the same fiasco
7261 that dogs private keys: there are several incompatible private key
7262 formats some of which are standard and some OpenSSL specific and
7263 require various evil hacks to allow partial transparent handling and
7264 even then it doesn't work with DER formats. Given the option anything
7265 other than PKCS#8 should be dumped: but the other formats have to
7266 stay in the name of compatibility.
7268 With public keys and the benefit of hindsight one standard format
7269 is used which works with EVP_PKEY, RSA or DSA structures: though
7270 it clearly returns an error if you try to read the wrong kind of key.
7272 Added a -pubkey option to the 'x509' utility to output the public key.
7273 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7274 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7275 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7276 that do the same as the EVP_PKEY_assign_*() except they up the
7277 reference count of the added key (they don't "swallow" the
7281 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7282 CRLs would fail if the file contained no certificates or no CRLs:
7283 added a new function to read in both types and return the number
7284 read: this means that if none are read it will be an error. The
7285 DER versions of the certificate and CRL reader would always fail
7286 because it isn't possible to mix certificates and CRLs in DER format
7287 without choking one or the other routine. Changed this to just read
7288 a certificate: this is the best we can do. Also modified the code
7289 in apps/verify.c to take notice of return codes: it was previously
7290 attempting to read in certificates from NULL pointers and ignoring
7291 any errors: this is one reason why the cert and CRL reader seemed
7292 to work. It doesn't check return codes from the default certificate
7293 routines: these may well fail if the certificates aren't installed.
7296 *) Code to support otherName option in GeneralName.
7299 *) First update to verify code. Change the verify utility
7300 so it warns if it is passed a self signed certificate:
7301 for consistency with the normal behaviour. X509_verify
7302 has been modified to it will now verify a self signed
7303 certificate if *exactly* the same certificate appears
7304 in the store: it was previously impossible to trust a
7305 single self signed certificate. This means that:
7306 openssl verify ss.pem
7307 now gives a warning about a self signed certificate but
7308 openssl verify -CAfile ss.pem ss.pem
7312 *) For servers, store verify_result in SSL_SESSION data structure
7313 (and add it to external session representation).
7314 This is needed when client certificate verifications fails,
7315 but an application-provided verification callback (set by
7316 SSL_CTX_set_cert_verify_callback) allows accepting the session
7317 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7318 but returns 1): When the session is reused, we have to set
7319 ssl->verify_result to the appropriate error code to avoid
7321 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7323 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7324 case in PKCS7_dataInit() where the signed PKCS7 structure
7325 didn't contain any existing data because it was being created.
7326 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7328 *) Add a salt to the key derivation routines in enc.c. This
7329 forms the first 8 bytes of the encrypted file. Also add a
7330 -S option to allow a salt to be input on the command line.
7333 *) New function X509_cmp(). Oddly enough there wasn't a function
7334 to compare two certificates. We do this by working out the SHA1
7335 hash and comparing that. X509_cmp() will be needed by the trust
7339 *) SSL_get1_session() is like SSL_get_session(), but increments
7340 the reference count in the SSL_SESSION returned.
7341 [Geoff Thorpe <geoff@eu.c2.net>]
7343 *) Fix for 'req': it was adding a null to request attributes.
7344 Also change the X509_LOOKUP and X509_INFO code to handle
7345 certificate auxiliary information.
7348 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7352 *) Add the possibility to add extra information to the memory leak
7353 detecting output, to form tracebacks, showing from where each
7354 allocation was originated: CRYPTO_push_info("constant string") adds
7355 the string plus current file name and line number to a per-thread
7356 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7357 is like calling CYRPTO_pop_info() until the stack is empty.
7358 Also updated memory leak detection code to be multi-thread-safe.
7361 *) Add options -text and -noout to pkcs7 utility and delete the
7362 encryption options which never did anything. Update docs.
7365 *) Add options to some of the utilities to allow the pass phrase
7366 to be included on either the command line (not recommended on
7367 OSes like Unix) or read from the environment. Update the
7368 manpages and fix a few bugs.
7371 *) Add a few manpages for some of the openssl commands.
7374 *) Fix the -revoke option in ca. It was freeing up memory twice,
7375 leaking and not finding already revoked certificates.
7378 *) Extensive changes to support certificate auxiliary information.
7379 This involves the use of X509_CERT_AUX structure and X509_AUX
7380 functions. An X509_AUX function such as PEM_read_X509_AUX()
7381 can still read in a certificate file in the usual way but it
7382 will also read in any additional "auxiliary information". By
7383 doing things this way a fair degree of compatibility can be
7384 retained: existing certificates can have this information added
7385 using the new 'x509' options.
7387 Current auxiliary information includes an "alias" and some trust
7388 settings. The trust settings will ultimately be used in enhanced
7389 certificate chain verification routines: currently a certificate
7390 can only be trusted if it is self signed and then it is trusted
7394 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7395 The problem was that one of the replacement routines had not been working
7396 since SSLeay releases. For now the offending routine has been replaced
7397 with non-optimised assembler. Even so, this now gives around 95%
7398 performance improvement for 1024 bit RSA signs.
7401 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7402 handling. Most clients have the effective key size in bits equal to
7403 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7404 A few however don't do this and instead use the size of the decrypted key
7405 to determine the RC2 key length and the AlgorithmIdentifier to determine
7406 the effective key length. In this case the effective key length can still
7407 be 40 bits but the key length can be 168 bits for example. This is fixed
7408 by manually forcing an RC2 key into the EVP_PKEY structure because the
7409 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7410 the key length and effective key length are equal.
7413 *) Add a bunch of functions that should simplify the creation of
7414 X509_NAME structures. Now you should be able to do:
7415 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7416 and have it automatically work out the correct field type and fill in
7417 the structures. The more adventurous can try:
7418 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7419 and it will (hopefully) work out the correct multibyte encoding.
7422 *) Change the 'req' utility to use the new field handling and multibyte
7423 copy routines. Before the DN field creation was handled in an ad hoc
7424 way in req, ca, and x509 which was rather broken and didn't support
7425 BMPStrings or UTF8Strings. Since some software doesn't implement
7426 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7427 using the dirstring_type option. See the new comment in the default
7428 openssl.cnf for more info.
7431 *) Make crypto/rand/md_rand.c more robust:
7432 - Assure unique random numbers after fork().
7433 - Make sure that concurrent threads access the global counter and
7434 md serializably so that we never lose entropy in them
7435 or use exactly the same state in multiple threads.
7436 Access to the large state is not always serializable because
7437 the additional locking could be a performance killer, and
7438 md should be large enough anyway.
7441 *) New file apps/app_rand.c with commonly needed functionality
7442 for handling the random seed file.
7444 Use the random seed file in some applications that previously did not:
7446 dsaparam -genkey (which also ignored its '-rand' option),
7449 x509 (when signing).
7450 Except on systems with /dev/urandom, it is crucial to have a random
7451 seed file at least for key creation, DSA signing, and for DH exchanges;
7452 for RSA signatures we could do without one.
7454 gendh and gendsa (unlike genrsa) used to read only the first byte
7455 of each file listed in the '-rand' option. The function as previously
7456 found in genrsa is now in app_rand.c and is used by all programs
7457 that support '-rand'.
7460 *) In RAND_write_file, use mode 0600 for creating files;
7461 don't just chmod when it may be too late.
7464 *) Report an error from X509_STORE_load_locations
7465 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7468 *) New function ASN1_mbstring_copy() this copies a string in either
7469 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7470 into an ASN1_STRING type. A mask of permissible types is passed
7471 and it chooses the "minimal" type to use or an error if not type
7475 *) Add function equivalents to the various macros in asn1.h. The old
7476 macros are retained with an M_ prefix. Code inside the library can
7477 use the M_ macros. External code (including the openssl utility)
7478 should *NOT* in order to be "shared library friendly".
7481 *) Add various functions that can check a certificate's extensions
7482 to see if it usable for various purposes such as SSL client,
7483 server or S/MIME and CAs of these types. This is currently
7484 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7485 verification. Also added a -purpose flag to x509 utility to
7486 print out all the purposes.
7489 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7493 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7494 for, obtain and decode and extension and obtain its critical flag.
7495 This allows all the necessary extension code to be handled in a
7496 single function call.
7499 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7500 platforms. See crypto/rc4/rc4_enc.c for further details.
7503 *) New -noout option to asn1parse. This causes no output to be produced
7504 its main use is when combined with -strparse and -out to extract data
7505 from a file (which may not be in ASN.1 format).
7508 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7509 when producing the local key id.
7510 [Richard Levitte <levitte@stacken.kth.se>]
7512 *) New option -dhparam in s_server. This allows a DH parameter file to be
7513 stated explicitly. If it is not stated then it tries the first server
7514 certificate file. The previous behaviour hard coded the filename
7518 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7519 a public key to be input or output. For example:
7520 openssl rsa -in key.pem -pubout -out pubkey.pem
7521 Also added necessary DSA public key functions to handle this.
7524 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7525 in the message. This was handled by allowing
7526 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7527 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7529 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7530 to the end of the strings whereas this didn't. This would cause problems
7531 if strings read with d2i_ASN1_bytes() were later modified.
7532 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7534 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7535 data and it contains EOF it will end up returning an error. This is
7536 caused by input 46 bytes long. The cause is due to the way base64
7537 BIOs find the start of base64 encoded data. They do this by trying a
7538 trial decode on each line until they find one that works. When they
7539 do a flag is set and it starts again knowing it can pass all the
7540 data directly through the decoder. Unfortunately it doesn't reset
7541 the context it uses. This means that if EOF is reached an attempt
7542 is made to pass two EOFs through the context and this causes the
7543 resulting error. This can also cause other problems as well. As is
7544 usual with these problems it takes *ages* to find and the fix is
7545 trivial: move one line.
7546 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7548 *) Ugly workaround to get s_client and s_server working under Windows. The
7549 old code wouldn't work because it needed to select() on sockets and the
7550 tty (for keypresses and to see if data could be written). Win32 only
7551 supports select() on sockets so we select() with a 1s timeout on the
7552 sockets and then see if any characters are waiting to be read, if none
7553 are present then we retry, we also assume we can always write data to
7554 the tty. This isn't nice because the code then blocks until we've
7555 received a complete line of data and it is effectively polling the
7556 keyboard at 1s intervals: however it's quite a bit better than not
7557 working at all :-) A dedicated Windows application might handle this
7558 with an event loop for example.
7561 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7562 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7563 will be called when RSA_sign() and RSA_verify() are used. This is useful
7564 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7565 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7566 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7567 This necessitated the support of an extra signature type NID_md5_sha1
7568 for SSL signatures and modifications to the SSL library to use it instead
7569 of calling RSA_public_decrypt() and RSA_private_encrypt().
7572 *) Add new -verify -CAfile and -CApath options to the crl program, these
7573 will lookup a CRL issuers certificate and verify the signature in a
7574 similar way to the verify program. Tidy up the crl program so it
7575 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7576 less strict. It will now permit CRL extensions even if it is not
7577 a V2 CRL: this will allow it to tolerate some broken CRLs.
7580 *) Initialize all non-automatic variables each time one of the openssl
7581 sub-programs is started (this is necessary as they may be started
7582 multiple times from the "OpenSSL>" prompt).
7583 [Lennart Bang, Bodo Moeller]
7585 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7586 removing all other RSA functionality (this is what NO_RSA does). This
7587 is so (for example) those in the US can disable those operations covered
7588 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7592 *) Non-copying interface to BIO pairs.
7593 (still largely untested)
7596 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7597 ASCII string. This was handled independently in various places before.
7600 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7601 UTF8 strings a character at a time.
7604 *) Use client_version from client hello to select the protocol
7605 (s23_srvr.c) and for RSA client key exchange verification
7606 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7609 *) Add various utility functions to handle SPKACs, these were previously
7610 handled by poking round in the structure internals. Added new function
7611 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7612 print, verify and generate SPKACs. Based on an original idea from
7613 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7616 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7619 *) Allow the config file extension section to be overwritten on the
7620 command line. Based on an original idea from Massimiliano Pala
7621 <madwolf@comune.modena.it>. The new option is called -extensions
7622 and can be applied to ca, req and x509. Also -reqexts to override
7623 the request extensions in req and -crlexts to override the crl extensions
7627 *) Add new feature to the SPKAC handling in ca. Now you can include
7628 the same field multiple times by preceding it by "XXXX." for example:
7631 this is the same syntax as used in the req config file.
7634 *) Allow certificate extensions to be added to certificate requests. These
7635 are specified in a 'req_extensions' option of the req section of the
7636 config file. They can be printed out with the -text option to req but
7637 are otherwise ignored at present.
7640 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7641 data read consists of only the final block it would not decrypted because
7642 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7643 A misplaced 'break' also meant the decrypted final block might not be
7644 copied until the next read.
7647 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7648 a few extra parameters to the DH structure: these will be useful if
7649 for example we want the value of 'q' or implement X9.42 DH.
7652 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7653 provides hooks that allow the default DSA functions or functions on a
7654 "per key" basis to be replaced. This allows hardware acceleration and
7655 hardware key storage to be handled without major modification to the
7656 library. Also added low level modexp hooks and CRYPTO_EX structure and
7657 associated functions.
7660 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7661 as "read only": it can't be written to and the buffer it points to will
7662 not be freed. Reading from a read only BIO is much more efficient than
7663 a normal memory BIO. This was added because there are several times when
7664 an area of memory needs to be read from a BIO. The previous method was
7665 to create a memory BIO and write the data to it, this results in two
7666 copies of the data and an O(n^2) reading algorithm. There is a new
7667 function BIO_new_mem_buf() which creates a read only memory BIO from
7668 an area of memory. Also modified the PKCS#7 routines to use read only
7672 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7673 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7674 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7675 but a retry condition occured while trying to read the rest.
7678 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7679 NID_pkcs7_encrypted by default: this was wrong since this should almost
7680 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7681 the encrypted data type: this is a more sensible place to put it and it
7682 allows the PKCS#12 code to be tidied up that duplicated this
7686 *) Changed obj_dat.pl script so it takes its input and output files on
7687 the command line. This should avoid shell escape redirection problems
7691 *) Initial support for certificate extension requests, these are included
7692 in things like Xenroll certificate requests. Included functions to allow
7693 extensions to be obtained and added.
7696 *) -crlf option to s_client and s_server for sending newlines as
7697 CRLF (as required by many protocols).
7700 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7702 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7703 [Ralf S. Engelschall]
7705 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7706 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7708 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7712 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7713 DH parameters/keys (q is lost during that conversion, but the resulting
7714 DH parameters contain its length).
7716 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7717 much faster than DH_generate_parameters (which creates parameters
7718 where p = 2*q + 1), and also the smaller q makes DH computations
7719 much more efficient (160-bit exponentiation instead of 1024-bit
7720 exponentiation); so this provides a convenient way to support DHE
7721 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7722 utter importance to use
7723 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7725 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7726 when such DH parameters are used, because otherwise small subgroup
7727 attacks may become possible!
7730 *) Avoid memory leak in i2d_DHparams.
7733 *) Allow the -k option to be used more than once in the enc program:
7734 this allows the same encrypted message to be read by multiple recipients.
7737 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7738 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7739 it will always use the numerical form of the OID, even if it has a short
7743 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7744 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7745 otherwise bn_mod_exp was called. In the case of hardware keys for example
7746 no private key components need be present and it might store extra data
7747 in the RSA structure, which cannot be accessed from bn_mod_exp.
7748 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7749 private key operations.
7752 *) Added support for SPARC Linux.
7755 *) pem_password_cb function type incompatibly changed from
7756 typedef int pem_password_cb(char *buf, int size, int rwflag);
7758 ....(char *buf, int size, int rwflag, void *userdata);
7759 so that applications can pass data to their callbacks:
7760 The PEM[_ASN1]_{read,write}... functions and macros now take an
7761 additional void * argument, which is just handed through whenever
7762 the password callback is called.
7763 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7765 New function SSL_CTX_set_default_passwd_cb_userdata.
7767 Compatibility note: As many C implementations push function arguments
7768 onto the stack in reverse order, the new library version is likely to
7769 interoperate with programs that have been compiled with the old
7770 pem_password_cb definition (PEM_whatever takes some data that
7771 happens to be on the stack as its last argument, and the callback
7772 just ignores this garbage); but there is no guarantee whatsoever that
7775 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7776 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7777 problems not only on Windows, but also on some Unix platforms.
7778 To avoid problematic command lines, these definitions are now in an
7779 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7780 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7783 *) MIPS III/IV assembler module is reimplemented.
7786 *) More DES library cleanups: remove references to srand/rand and
7787 delete an unused file.
7790 *) Add support for the the free Netwide assembler (NASM) under Win32,
7791 since not many people have MASM (ml) and it can be hard to obtain.
7792 This is currently experimental but it seems to work OK and pass all
7793 the tests. Check out INSTALL.W32 for info.
7796 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7797 without temporary keys kept an extra copy of the server key,
7798 and connections with temporary keys did not free everything in case
7802 *) New function RSA_check_key and new openssl rsa option -check
7803 for verifying the consistency of RSA keys.
7804 [Ulf Moeller, Bodo Moeller]
7806 *) Various changes to make Win32 compile work:
7807 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7808 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7809 comparison" warnings.
7810 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7813 *) Add a debugging option to PKCS#5 v2 key generation function: when
7814 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7815 derived keys are printed to stderr.
7818 *) Copy the flags in ASN1_STRING_dup().
7819 [Roman E. Pavlov <pre@mo.msk.ru>]
7821 *) The x509 application mishandled signing requests containing DSA
7822 keys when the signing key was also DSA and the parameters didn't match.
7824 It was supposed to omit the parameters when they matched the signing key:
7825 the verifying software was then supposed to automatically use the CA's
7826 parameters if they were absent from the end user certificate.
7828 Omitting parameters is no longer recommended. The test was also
7829 the wrong way round! This was probably due to unusual behaviour in
7830 EVP_cmp_parameters() which returns 1 if the parameters match.
7831 This meant that parameters were omitted when they *didn't* match and
7832 the certificate was useless. Certificates signed with 'ca' didn't have
7834 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7836 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7837 The interface is as follows:
7838 Applications can use
7839 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7840 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7841 "off" is now the default.
7842 The library internally uses
7843 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7844 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7845 to disable memory-checking temporarily.
7847 Some inconsistent states that previously were possible (and were
7848 even the default) are now avoided.
7850 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7851 with each memory chunk allocated; this is occasionally more helpful
7852 than just having a counter.
7854 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7856 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7860 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7861 which largely parallels "options", but is for changing API behaviour,
7862 whereas "options" are about protocol behaviour.
7863 Initial "mode" flags are:
7865 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7866 a single record has been written.
7867 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7868 retries use the same buffer location.
7869 (But all of the contents must be
7873 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7876 *) Fix problems with no-hmac etc.
7877 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7879 *) New functions RSA_get_default_method(), RSA_set_method() and
7880 RSA_get_method(). These allows replacement of RSA_METHODs without having
7881 to mess around with the internals of an RSA structure.
7884 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7885 Also really enable memory leak checks in openssl.c and in some
7887 [Chad C. Mulligan, Bodo Moeller]
7889 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7890 up the length of negative integers. This has now been simplified to just
7891 store the length when it is first determined and use it later, rather
7892 than trying to keep track of where data is copied and updating it to
7894 [Steve Henson, reported by Brien Wheeler
7895 <bwheeler@authentica-security.com>]
7897 *) Add a new function PKCS7_signatureVerify. This allows the verification
7898 of a PKCS#7 signature but with the signing certificate passed to the
7899 function itself. This contrasts with PKCS7_dataVerify which assumes the
7900 certificate is present in the PKCS#7 structure. This isn't always the
7901 case: certificates can be omitted from a PKCS#7 structure and be
7902 distributed by "out of band" means (such as a certificate database).
7905 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7906 function prototypes in pem.h, also change util/mkdef.pl to add the
7907 necessary function names.
7910 *) mk1mf.pl (used by Windows builds) did not properly read the
7911 options set by Configure in the top level Makefile, and Configure
7912 was not even able to write more than one option correctly.
7913 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7916 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7917 file to be loaded from a BIO or FILE pointer. The BIO version will
7918 for example allow memory BIOs to contain config info.
7921 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7922 Whoever hopes to achieve shared-library compatibility across versions
7923 must use this, not the compile-time macro.
7924 (Exercise 0.9.4: Which is the minimum library version required by
7926 Note: All this applies only to multi-threaded programs, others don't
7930 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7931 through a BIO pair triggered the default case, i.e.
7932 SSLerr(...,SSL_R_UNKNOWN_STATE).
7935 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7936 can use the SSL library even if none of the specific BIOs is
7940 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7941 for the encoded length.
7942 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7944 *) Add initial documentation of the X509V3 functions.
7947 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7948 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7949 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7950 secure PKCS#8 private key format with a high iteration count.
7953 *) Fix determination of Perl interpreter: A perl or perl5
7954 _directory_ in $PATH was also accepted as the interpreter.
7955 [Ralf S. Engelschall]
7957 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7958 wrong with it but it was very old and did things like calling
7959 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7963 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7964 to use the new extension code.
7967 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7968 with macros. This should make it easier to change their form, add extra
7969 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7973 *) Add to configuration table a new entry that can specify an alternative
7974 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7975 according to Mark Crispin <MRC@Panda.COM>.
7979 *) DES CBC did not update the IV. Weird.
7982 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7983 Changing the behaviour of the former might break existing programs --
7984 where IV updating is needed, des_ncbc_encrypt can be used.
7987 *) When bntest is run from "make test" it drives bc to check its
7988 calculations, as well as internally checking them. If an internal check
7989 fails, it needs to cause bc to give a non-zero result or make test carries
7990 on without noticing the failure. Fixed.
7993 *) DES library cleanups.
7996 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7997 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7998 ciphers. NOTE: although the key derivation function has been verified
7999 against some published test vectors it has not been extensively tested
8000 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8004 *) Instead of "mkdir -p", which is not fully portable, use new
8005 Perl script "util/mkdir-p.pl".
8008 *) Rewrite the way password based encryption (PBE) is handled. It used to
8009 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8010 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8011 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8012 the 'parameter' field of the AlgorithmIdentifier is passed to the
8013 underlying key generation function so it must do its own ASN1 parsing.
8014 This has also changed the EVP_PBE_CipherInit() function which now has a
8015 'parameter' argument instead of literal salt and iteration count values
8016 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8019 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8020 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8021 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8022 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8023 value was just used as a "magic string" and not used directly its
8024 value doesn't matter.
8027 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8031 *) "linux-sparc64" configuration (ultrapenguin).
8032 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8033 "linux-sparc" configuration.
8034 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8036 *) config now generates no-xxx options for missing ciphers.
8039 *) Support the EBCDIC character set (work in progress).
8040 File ebcdic.c not yet included because it has a different license.
8041 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8043 *) Support BS2000/OSD-POSIX.
8044 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8046 *) Make callbacks for key generation use void * instead of char *.
8049 *) Make S/MIME samples compile (not yet tested).
8052 *) Additional typesafe stacks.
8055 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8059 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8061 *) New configuration variant "sco5-gcc".
8063 *) Updated some demos.
8064 [Sean O Riordain, Wade Scholine]
8066 *) Add missing BIO_free at exit of pkcs12 application.
8069 *) Fix memory leak in conf.c.
8072 *) Updates for Win32 to assembler version of MD5.
8075 *) Set #! path to perl in apps/der_chop to where we found it
8076 instead of using a fixed path.
8079 *) SHA library changes for irix64-mips4-cc.
8082 *) Improvements for VMS support.
8086 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8088 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8089 This also avoids the problems with SC4.2 and unpatched SC5.
8090 [Andy Polyakov <appro@fy.chalmers.se>]
8092 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8093 These are required because of the typesafe stack would otherwise break
8094 existing code. If old code used a structure member which used to be STACK
8095 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8096 sk_num or sk_value it would produce an error because the num, data members
8097 are not present in STACK_OF. Now it just produces a warning. sk_set
8098 replaces the old method of assigning a value to sk_value
8099 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8100 that does this will no longer work (and should use sk_set instead) but
8101 this could be regarded as a "questionable" behaviour anyway.
8104 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8105 correctly handle encrypted S/MIME data.
8108 *) Change type of various DES function arguments from des_cblock
8109 (which means, in function argument declarations, pointer to char)
8110 to des_cblock * (meaning pointer to array with 8 char elements),
8111 which allows the compiler to do more typechecking; it was like
8112 that back in SSLeay, but with lots of ugly casts.
8114 Introduce new type const_des_cblock.
8117 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8118 problems: find RecipientInfo structure that matches recipient certificate
8119 and initialise the ASN1 structures properly based on passed cipher.
8122 *) Belatedly make the BN tests actually check the results.
8125 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8126 to and from BNs: it was completely broken. New compilation option
8127 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8128 key elements as negative integers.
8131 *) Reorganize and speed up MD5.
8132 [Andy Polyakov <appro@fy.chalmers.se>]
8135 [Richard Levitte <richard@levitte.org>]
8137 *) New option -out to asn1parse to allow the parsed structure to be
8138 output to a file. This is most useful when combined with the -strparse
8139 option to examine the output of things like OCTET STRINGS.
8142 *) Make SSL library a little more fool-proof by not requiring any longer
8143 that SSL_set_{accept,connect}_state be called before
8144 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8145 in many applications because usually everything *appeared* to work as
8146 intended anyway -- now it really works as intended).
8149 *) Move openssl.cnf out of lib/.
8152 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8153 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8154 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8155 [Ralf S. Engelschall]
8157 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8158 handle PKCS#7 enveloped data properly.
8159 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8161 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8162 copying pointers. The cert_st handling is changed by this in
8163 various ways (and thus what used to be known as ctx->default_cert
8164 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8165 any longer when s->cert does not give us what we need).
8166 ssl_cert_instantiate becomes obsolete by this change.
8167 As soon as we've got the new code right (possibly it already is?),
8168 we have solved a couple of bugs of the earlier code where s->cert
8169 was used as if it could not have been shared with other SSL structures.
8171 Note that using the SSL API in certain dirty ways now will result
8172 in different behaviour than observed with earlier library versions:
8173 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8174 does not influence s as it used to.
8176 In order to clean up things more thoroughly, inside SSL_SESSION
8177 we don't use CERT any longer, but a new structure SESS_CERT
8178 that holds per-session data (if available); currently, this is
8179 the peer's certificate chain and, for clients, the server's certificate
8180 and temporary key. CERT holds only those values that can have
8181 meaningful defaults in an SSL_CTX.
8184 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8185 from the internal representation. Various PKCS#7 fixes: remove some
8186 evil casts and set the enc_dig_alg field properly based on the signing
8190 *) Allow PKCS#12 password to be set from the command line or the
8191 environment. Let 'ca' get its config file name from the environment
8192 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8196 *) Allow certificate policies extension to use an IA5STRING for the
8197 organization field. This is contrary to the PKIX definition but
8198 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8202 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8203 without disallowing inline assembler and the like for non-pedantic builds.
8206 *) Support Borland C++ builder.
8207 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8212 *) SHA-1 cleanups and performance enhancements.
8213 [Andy Polyakov <appro@fy.chalmers.se>]
8215 *) Sparc v8plus assembler for the bignum library.
8216 [Andy Polyakov <appro@fy.chalmers.se>]
8218 *) Accept any -xxx and +xxx compiler options in Configure.
8221 *) Update HPUX configuration.
8224 *) Add missing sk_<type>_unshift() function to safestack.h
8225 [Ralf S. Engelschall]
8227 *) New function SSL_CTX_use_certificate_chain_file that sets the
8228 "extra_cert"s in addition to the certificate. (This makes sense
8229 only for "PEM" format files, as chains as a whole are not
8233 *) Support verify_depth from the SSL API.
8234 x509_vfy.c had what can be considered an off-by-one-error:
8235 Its depth (which was not part of the external interface)
8236 was actually counting the number of certificates in a chain;
8237 now it really counts the depth.
8240 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8241 instead of X509err, which often resulted in confusing error
8242 messages since the error codes are not globally unique
8243 (e.g. an alleged error in ssl3_accept when a certificate
8244 didn't match the private key).
8246 *) New function SSL_CTX_set_session_id_context that allows to set a default
8247 value (so that you don't need SSL_set_session_id_context for each
8248 connection using the SSL_CTX).
8251 *) OAEP decoding bug fix.
8254 *) Support INSTALL_PREFIX for package builders, as proposed by
8258 *) New Configure options "threads" and "no-threads". For systems
8259 where the proper compiler options are known (currently Solaris
8260 and Linux), "threads" is the default.
8263 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8266 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8267 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8268 such as /usr/local/bin.
8271 *) "make linux-shared" to build shared libraries.
8272 [Niels Poppe <niels@netbox.org>]
8274 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8277 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8278 extension adding in x509 utility.
8281 *) Remove NOPROTO sections and error code comments.
8284 *) Partial rewrite of the DEF file generator to now parse the ANSI
8288 *) New Configure options --prefix=DIR and --openssldir=DIR.
8291 *) Complete rewrite of the error code script(s). It is all now handled
8292 by one script at the top level which handles error code gathering,
8293 header rewriting and C source file generation. It should be much better
8294 than the old method: it now uses a modified version of Ulf's parser to
8295 read the ANSI prototypes in all header files (thus the old K&R definitions
8296 aren't needed for error creation any more) and do a better job of
8297 translating function codes into names. The old 'ASN1 error code imbedded
8298 in a comment' is no longer necessary and it doesn't use .err files which
8299 have now been deleted. Also the error code call doesn't have to appear all
8300 on one line (which resulted in some large lines...).
8303 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8306 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8307 0 (which usually indicates a closed connection), but continue reading.
8310 *) Fix some race conditions.
8313 *) Add support for CRL distribution points extension. Add Certificate
8314 Policies and CRL distribution points documentation.
8317 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8320 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8321 8 of keying material. Merlin has also confirmed interop with this fix
8322 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8323 [Merlin Hughes <merlin@baltimore.ie>]
8325 *) Fix lots of warnings.
8326 [Richard Levitte <levitte@stacken.kth.se>]
8328 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8329 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8330 [Richard Levitte <levitte@stacken.kth.se>]
8332 *) Fix problems with sizeof(long) == 8.
8333 [Andy Polyakov <appro@fy.chalmers.se>]
8335 *) Change functions to ANSI C.
8338 *) Fix typos in error codes.
8339 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8341 *) Remove defunct assembler files from Configure.
8344 *) SPARC v8 assembler BIGNUM implementation.
8345 [Andy Polyakov <appro@fy.chalmers.se>]
8347 *) Support for Certificate Policies extension: both print and set.
8348 Various additions to support the r2i method this uses.
8351 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8352 return a const string when you are expecting an allocated buffer.
8355 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8356 types DirectoryString and DisplayText.
8359 *) Add code to allow r2i extensions to access the configuration database,
8360 add an LHASH database driver and add several ctx helper functions.
8363 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8364 fail when they extended the size of a BIGNUM.
8367 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8368 support typesafe stack.
8371 *) Fix typo in SSL_[gs]et_options().
8372 [Nils Frostberg <nils@medcom.se>]
8374 *) Delete various functions and files that belonged to the (now obsolete)
8375 old X509V3 handling code.
8378 *) New Configure option "rsaref".
8381 *) Don't auto-generate pem.h.
8384 *) Introduce type-safe ASN.1 SETs.
8387 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8388 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8390 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8391 that links with OpenSSL (well at least cause lots of warnings), but fear
8392 not: the conversion is trivial, and it eliminates loads of evil casts. A
8393 few STACKed things have been converted already. Feel free to convert more.
8394 In the fullness of time, I'll do away with the STACK type altogether.
8397 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8398 specified in <certfile> by updating the entry in the index.txt file.
8399 This way one no longer has to edit the index.txt file manually for
8400 revoking a certificate. The -revoke option does the gory details now.
8401 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8403 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8404 `-text' option at all and this way the `-noout -text' combination was
8405 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8406 [Ralf S. Engelschall]
8408 *) Make sure a corresponding plain text error message exists for the
8409 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8410 verify callback function determined that a certificate was revoked.
8411 [Ralf S. Engelschall]
8413 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8414 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8415 all available cipers including rc5, which was forgotten until now.
8416 In order to let the testing shell script know which algorithms
8417 are available, a new (up to now undocumented) command
8418 "openssl list-cipher-commands" is used.
8421 *) Bugfix: s_client occasionally would sleep in select() when
8422 it should have checked SSL_pending() first.
8425 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8426 the raw DSA values prior to ASN.1 encoding.
8429 *) Tweaks to Configure
8430 [Niels Poppe <niels@netbox.org>]
8432 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8436 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8439 *) New config option to avoid instructions that are illegal on the 80386.
8440 The default code is faster, but requires at least a 486.
8443 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8444 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8445 same as SSL2_VERSION anyway.
8448 *) New "-showcerts" option for s_client.
8451 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8452 application. Various cleanups and fixes.
8455 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8456 modify error routines to work internally. Add error codes and PBE init
8457 to library startup routines.
8460 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8461 packing functions to asn1 and evp. Changed function names and error
8462 codes along the way.
8465 *) PKCS12 integration: and so it begins... First of several patches to
8466 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8467 objects to objects.h
8470 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8471 and display support for Thawte strong extranet extension.
8474 *) Add LinuxPPC support.
8475 [Jeff Dubrule <igor@pobox.org>]
8477 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8478 bn_div_words in alpha.s.
8479 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8481 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8482 OAEP isn't supported when OpenSSL is built with RSAref.
8483 [Ulf Moeller <ulf@fitug.de>]
8485 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8486 so they no longer are missing under -DNOPROTO.
8487 [Soren S. Jorvang <soren@t.dk>]
8490 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8492 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8493 doesn't work when the session is reused. Coming soon!
8496 *) Fix a security hole, that allows sessions to be reused in the wrong
8497 context thus bypassing client cert protection! All software that uses
8498 client certs and session caches in multiple contexts NEEDS PATCHING to
8499 allow session reuse! A fuller solution is in the works.
8500 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8502 *) Some more source tree cleanups (removed obsolete files
8503 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8504 permission on "config" script to be executable) and a fix for the INSTALL
8506 [Ulf Moeller <ulf@fitug.de>]
8508 *) Remove some legacy and erroneous uses of malloc, free instead of
8510 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8512 *) Make rsa_oaep_test return non-zero on error.
8513 [Ulf Moeller <ulf@fitug.de>]
8515 *) Add support for native Solaris shared libraries. Configure
8516 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8517 if someone would make that last step automatic.
8518 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8520 *) ctx_size was not built with the right compiler during "make links". Fixed.
8523 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8524 except NULL ciphers". This means the default cipher list will no longer
8525 enable NULL ciphers. They need to be specifically enabled e.g. with
8526 the string "DEFAULT:eNULL".
8529 *) Fix to RSA private encryption routines: if p < q then it would
8530 occasionally produce an invalid result. This will only happen with
8531 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8534 *) Be less restrictive and allow also `perl util/perlpath.pl
8535 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8536 because this way one can also use an interpreter named `perl5' (which is
8537 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8538 installed as `perl').
8539 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8541 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8542 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8544 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8545 advapi32.lib to Win32 build and change the pem test comparision
8546 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8547 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8548 and crypto/des/ede_cbcm_enc.c.
8551 *) DES quad checksum was broken on big-endian architectures. Fixed.
8554 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8555 Win32 test batch file so it (might) work again. The Win32 test batch file
8556 is horrible: I feel ill....
8559 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8560 in e_os.h. Audit of header files to check ANSI and non ANSI
8561 sections: 10 functions were absent from non ANSI section and not exported
8562 from Windows DLLs. Fixed up libeay.num for new functions.
8565 *) Make `openssl version' output lines consistent.
8566 [Ralf S. Engelschall]
8568 *) Fix Win32 symbol export lists for BIO functions: Added
8569 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8570 to ms/libeay{16,32}.def.
8571 [Ralf S. Engelschall]
8573 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8574 fine under Unix and passes some trivial tests I've now added. But the
8575 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8576 added to make sure no one expects that this stuff really works in the
8577 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8578 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8580 [Ralf S. Engelschall]
8582 *) Fix the generation of two part addresses in perl.
8583 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8585 *) Add config entry for Linux on MIPS.
8586 [John Tobey <jtobey@channel1.com>]
8588 *) Make links whenever Configure is run, unless we are on Windoze.
8591 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8592 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8596 *) Add a useful kludge to allow package maintainers to specify compiler and
8597 other platforms details on the command line without having to patch the
8598 Configure script everytime: One now can use ``perl Configure
8599 <id>:<details>'', i.e. platform ids are allowed to have details appended
8600 to them (seperated by colons). This is treated as there would be a static
8601 pre-configured entry in Configure's %table under key <id> with value
8602 <details> and ``perl Configure <id>'' is called. So, when you want to
8603 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8604 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8605 now, which overrides the FreeBSD-elf entry on-the-fly.
8606 [Ralf S. Engelschall]
8608 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8611 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8612 on the `perl Configure ...' command line. This way one can compile
8613 OpenSSL libraries with Position Independent Code (PIC) which is needed
8614 for linking it into DSOs.
8615 [Ralf S. Engelschall]
8617 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8621 *) Cleaned up the LICENSE document: The official contact for any license
8622 questions now is the OpenSSL core team under openssl-core@openssl.org.
8623 And add a paragraph about the dual-license situation to make sure people
8624 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8625 to the OpenSSL toolkit.
8626 [Ralf S. Engelschall]
8628 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8629 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8630 Additonally cleaned up the `make links' target: Remove unnecessary
8631 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8632 to speed processing and no longer clutter the display with confusing
8633 stuff. Instead only the actually done links are displayed.
8634 [Ralf S. Engelschall]
8636 *) Permit null encryption ciphersuites, used for authentication only. It used
8637 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8638 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8642 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8643 signed attributes when verifying signatures (this would break them),
8644 the detached data encoding was wrong and public keys obtained using
8645 X509_get_pubkey() weren't freed.
8648 *) Add text documentation for the BUFFER functions. Also added a work around
8649 to a Win95 console bug. This was triggered by the password read stuff: the
8650 last character typed gets carried over to the next fread(). If you were
8651 generating a new cert request using 'req' for example then the last
8652 character of the passphrase would be CR which would then enter the first
8656 *) Added the new `Includes OpenSSL Cryptography Software' button as
8657 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8658 button and can be used by applications based on OpenSSL to show the
8659 relationship to the OpenSSL project.
8660 [Ralf S. Engelschall]
8662 *) Remove confusing variables in function signatures in files
8663 ssl/ssl_lib.c and ssl/ssl.h.
8664 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8666 *) Don't install bss_file.c under PREFIX/include/
8667 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8669 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8670 functions that return function pointers and has support for NT specific
8671 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8672 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8673 unsigned to signed types: this was killing the Win32 compile.
8676 *) Add new certificate file to stack functions,
8677 SSL_add_dir_cert_subjects_to_stack() and
8678 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8679 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8680 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8681 This means that Apache-SSL and similar packages don't have to mess around
8682 to add as many CAs as they want to the preferred list.
8685 *) Experiment with doxygen documentation. Currently only partially applied to
8687 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8688 openssl.doxy as the configuration file.
8691 *) Get rid of remaining C++-style comments which strict C compilers hate.
8692 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8694 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8695 compiled in by default: it has problems with large keys.
8698 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8699 DH private keys and/or callback functions which directly correspond to
8700 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8701 is needed for applications which have to configure certificates on a
8702 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8704 For the RSA certificate situation is makes no difference, but
8705 for the DSA certificate situation this fixes the "no shared cipher"
8706 problem where the OpenSSL cipher selection procedure failed because the
8707 temporary keys were not overtaken from the context and the API provided
8708 no way to reconfigure them.
8709 The new functions now let applications reconfigure the stuff and they
8710 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8711 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8712 non-public-API function ssl_cert_instantiate() is used as a helper
8713 function and also to reduce code redundancy inside ssl_rsa.c.
8714 [Ralf S. Engelschall]
8716 *) Move s_server -dcert and -dkey options out of the undocumented feature
8717 area because they are useful for the DSA situation and should be
8718 recognized by the users.
8719 [Ralf S. Engelschall]
8721 *) Fix the cipher decision scheme for export ciphers: the export bits are
8722 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8723 SSL_EXP_MASK. So, the original variable has to be used instead of the
8724 already masked variable.
8725 [Richard Levitte <levitte@stacken.kth.se>]
8727 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8728 [Richard Levitte <levitte@stacken.kth.se>]
8730 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8731 from `int' to `unsigned int' because it's a length and initialized by
8732 EVP_DigestFinal() which expects an `unsigned int *'.
8733 [Richard Levitte <levitte@stacken.kth.se>]
8735 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8736 script. Instead use the usual Shell->Perl transition trick.
8737 [Ralf S. Engelschall]
8739 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8740 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8741 -noout -modulus' as it's already the case for `openssl rsa -noout
8742 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8743 currently the public key is printed (a decision which was already done by
8744 `openssl dsa -modulus' in the past) which serves a similar purpose.
8745 Additionally the NO_RSA no longer completely removes the whole -modulus
8746 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8748 [Ralf S. Engelschall]
8750 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8751 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8752 [Arne Ansper <arne@ats.cyber.ee>]
8754 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8755 to be added. Now both 'req' and 'ca' can use new objects defined in the
8759 *) Add cool BIO that does syslog (or event log on NT).
8760 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8762 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8763 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8764 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8765 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8768 *) Add preliminary config info for new extension code.
8771 *) Make RSA_NO_PADDING really use no padding.
8772 [Ulf Moeller <ulf@fitug.de>]
8774 *) Generate errors when private/public key check is done.
8777 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8778 for some CRL extensions and new objects added.
8781 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8782 key usage extension and fuller support for authority key id.
8785 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8786 padding method for RSA, which is recommended for new applications in PKCS
8787 #1 v2.0 (RFC 2437, October 1998).
8788 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8789 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8790 against Bleichbacher's attack on RSA.
8791 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8794 *) Updates to the new SSL compression code
8795 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8797 *) Fix so that the version number in the master secret, when passed
8798 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8799 (because the server will not accept higher), that the version number
8800 is 0x03,0x01, not 0x03,0x00
8801 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8803 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8804 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8805 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8808 *) Support for RAW extensions where an arbitrary extension can be
8809 created by including its DER encoding. See apps/openssl.cnf for
8813 *) Make sure latest Perl versions don't interpret some generated C array
8814 code as Perl array code in the crypto/err/err_genc.pl script.
8815 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8817 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8818 not many people have the assembler. Various Win32 compilation fixes and
8819 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8823 *) Modify configure script 'Configure' to automatically create crypto/date.h
8824 file under Win32 and also build pem.h from pem.org. New script
8825 util/mkfiles.pl to create the MINFO file on environments that can't do a
8826 'make files': perl util/mkfiles.pl >MINFO should work.
8829 *) Major rework of DES function declarations, in the pursuit of correctness
8830 and purity. As a result, many evil casts evaporated, and some weirdness,
8831 too. You may find this causes warnings in your code. Zapping your evil
8832 casts will probably fix them. Mostly.
8835 *) Fix for a typo in asn1.h. Bug fix to object creation script
8836 obj_dat.pl. It considered a zero in an object definition to mean
8837 "end of object": none of the objects in objects.h have any zeros
8838 so it wasn't spotted.
8839 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8841 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8842 Masking (CBCM). In the absence of test vectors, the best I have been able
8843 to do is check that the decrypt undoes the encrypt, so far. Send me test
8844 vectors if you have them.
8847 *) Correct calculation of key length for export ciphers (too much space was
8848 allocated for null ciphers). This has not been tested!
8851 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8852 message is now correct (it understands "crypto" and "ssl" on its
8853 command line). There is also now an "update" option. This will update
8854 the util/ssleay.num and util/libeay.num files with any new functions.
8856 perl util/mkdef.pl crypto ssl update
8857 it will update them.
8860 *) Overhauled the Perl interface (perl/*):
8861 - ported BN stuff to OpenSSL's different BN library
8862 - made the perl/ source tree CVS-aware
8863 - renamed the package from SSLeay to OpenSSL (the files still contain
8864 their history because I've copied them in the repository)
8865 - removed obsolete files (the test scripts will be replaced
8866 by better Test::Harness variants in the future)
8867 [Ralf S. Engelschall]
8869 *) First cut for a very conservative source tree cleanup:
8870 1. merge various obsolete readme texts into doc/ssleay.txt
8871 where we collect the old documents and readme texts.
8872 2. remove the first part of files where I'm already sure that we no
8873 longer need them because of three reasons: either they are just temporary
8874 files which were left by Eric or they are preserved original files where
8875 I've verified that the diff is also available in the CVS via "cvs diff
8876 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8877 the crypto/md/ stuff).
8878 [Ralf S. Engelschall]
8880 *) More extension code. Incomplete support for subject and issuer alt
8881 name, issuer and authority key id. Change the i2v function parameters
8882 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8883 what that's for :-) Fix to ASN1 macro which messed up
8884 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8887 *) Preliminary support for ENUMERATED type. This is largely copied from the
8891 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8892 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8894 *) Make sure `make rehash' target really finds the `openssl' program.
8895 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8897 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8898 like to hear about it if this slows down other processors.
8901 *) Add CygWin32 platform information to Configure script.
8902 [Alan Batie <batie@aahz.jf.intel.com>]
8904 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8905 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8907 *) New program nseq to manipulate netscape certificate sequences
8910 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8914 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8915 but the BN code had some problems that would cause failures when
8916 doing certificate verification and some other functions.
8917 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8919 *) Add ASN1 and PEM code to support netscape certificate sequences.
8922 *) Add ASN1 and PEM code to support netscape certificate sequences.
8925 *) Add several PKIX and private extended key usage OIDs.
8928 *) Modify the 'ca' program to handle the new extension code. Modify
8929 openssl.cnf for new extension format, add comments.
8932 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8933 and add a sample to openssl.cnf so req -x509 now adds appropriate
8937 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8938 error code, add initial support to X509_print() and x509 application.
8941 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8942 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8943 stuff is currently isolated and isn't even compiled yet.
8946 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8947 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8948 Removed the versions check from X509 routines when loading extensions:
8949 this allows certain broken certificates that don't set the version
8950 properly to be processed.
8953 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8954 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8955 can still be regenerated with "make depend".
8958 *) Spelling mistake in C version of CAST-128.
8959 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8961 *) Changes to the error generation code. The perl script err-code.pl
8962 now reads in the old error codes and retains the old numbers, only
8963 adding new ones if necessary. It also only changes the .err files if new
8964 codes are added. The makefiles have been modified to only insert errors
8965 when needed (to avoid needlessly modifying header files). This is done
8966 by only inserting errors if the .err file is newer than the auto generated
8967 C file. To rebuild all the error codes from scratch (the old behaviour)
8968 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8969 or delete all the .err files.
8972 *) CAST-128 was incorrectly implemented for short keys. The C version has
8973 been fixed, but is untested. The assembler versions are also fixed, but
8974 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8975 to regenerate it if needed.
8976 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8977 Hagino <itojun@kame.net>]
8979 *) File was opened incorrectly in randfile.c.
8980 [Ulf Möller <ulf@fitug.de>]
8982 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8983 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8984 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8985 al: it's just almost always a UTCTime. Note this patch adds new error
8986 codes so do a "make errors" if there are problems.
8989 *) Correct Linux 1 recognition in config.
8990 [Ulf Möller <ulf@fitug.de>]
8992 *) Remove pointless MD5 hash when using DSA keys in ca.
8993 [Anonymous <nobody@replay.com>]
8995 *) Generate an error if given an empty string as a cert directory. Also
8996 generate an error if handed NULL (previously returned 0 to indicate an
8997 error, but didn't set one).
8998 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9000 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9003 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9004 parameters. This was causing a warning which killed off the Win32 compile.
9007 *) Remove C++ style comments from crypto/bn/bn_local.h.
9008 [Neil Costigan <neil.costigan@celocom.com>]
9010 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9011 based on a text string, looking up short and long names and finally
9012 "dot" format. The "dot" format stuff didn't work. Added new function
9013 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9014 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9015 OID is not part of the table.
9018 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9019 X509_LOOKUP_by_alias().
9022 *) Sort openssl functions by name.
9025 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9026 encryption from sample DSA keys (in case anyone is interested the password
9030 *) Make _all_ *_free functions accept a NULL pointer.
9031 [Frans Heymans <fheymans@isaserver.be>]
9033 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9035 [Anonymous <nobody@replay.com>]
9037 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9038 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9040 *) Don't blow it for numeric -newkey arguments to apps/req.
9041 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9043 *) Temp key "for export" tests were wrong in s3_srvr.c.
9044 [Anonymous <nobody@replay.com>]
9046 *) Add prototype for temp key callback functions
9047 SSL_CTX_set_tmp_{rsa,dh}_callback().
9050 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9051 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9054 *) X509_name_add_entry() freed the wrong thing after an error.
9055 [Arne Ansper <arne@ats.cyber.ee>]
9057 *) rsa_eay.c would attempt to free a NULL context.
9058 [Arne Ansper <arne@ats.cyber.ee>]
9060 *) BIO_s_socket() had a broken should_retry() on Windoze.
9061 [Arne Ansper <arne@ats.cyber.ee>]
9063 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9064 [Arne Ansper <arne@ats.cyber.ee>]
9066 *) Make sure the already existing X509_STORE->depth variable is initialized
9067 in X509_STORE_new(), but document the fact that this variable is still
9068 unused in the certificate verification process.
9069 [Ralf S. Engelschall]
9071 *) Fix the various library and apps files to free up pkeys obtained from
9072 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9075 *) Fix reference counting in X509_PUBKEY_get(). This makes
9076 demos/maurice/example2.c work, amongst others, probably.
9077 [Steve Henson and Ben Laurie]
9079 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9080 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9081 are no longer created. This way we have a single and consistent command
9082 line interface `openssl <command>', similar to `cvs <command>'.
9083 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9085 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9086 BIT STRING wrapper always have zero unused bits.
9089 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9092 *) Make the top-level INSTALL documentation easier to understand.
9095 *) Makefiles updated to exit if an error occurs in a sub-directory
9096 make (including if user presses ^C) [Paul Sutton]
9098 *) Make Montgomery context stuff explicit in RSA data structure.
9101 *) Fix build order of pem and err to allow for generated pem.h.
9104 *) Fix renumbering bug in X509_NAME_delete_entry().
9107 *) Enhanced the err-ins.pl script so it makes the error library number
9108 global and can add a library name. This is needed for external ASN1 and
9109 other error libraries.
9112 *) Fixed sk_insert which never worked properly.
9115 *) Fix ASN1 macros so they can handle indefinite length construted
9116 EXPLICIT tags. Some non standard certificates use these: they can now
9120 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9121 into a single doc/ssleay.txt bundle. This way the information is still
9122 preserved but no longer messes up this directory. Now it's new room for
9123 the new set of documenation files.
9124 [Ralf S. Engelschall]
9126 *) SETs were incorrectly DER encoded. This was a major pain, because they
9127 shared code with SEQUENCEs, which aren't coded the same. This means that
9128 almost everything to do with SETs or SEQUENCEs has either changed name or
9129 number of arguments.
9130 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9132 *) Fix test data to work with the above.
9135 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9136 was already fixed by Eric for 0.9.1 it seems.
9137 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9139 *) Autodetect FreeBSD3.
9142 *) Fix various bugs in Configure. This affects the following platforms:
9146 unixware-2.0-pentium
9150 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9151 before they are needed.
9154 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9158 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9160 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9161 changed SSLeay to OpenSSL in version strings.
9162 [Ralf S. Engelschall]
9164 *) Some fixups to the top-level documents.
9167 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9168 because the symlink to include/ was missing.
9169 [Ralf S. Engelschall]
9171 *) Incorporated the popular no-RSA/DSA-only patches
9172 which allow to compile a RSA-free SSLeay.
9173 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9175 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9176 when "ssleay" is still not found.
9177 [Ralf S. Engelschall]
9179 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9180 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9182 *) Updated the README file.
9183 [Ralf S. Engelschall]
9185 *) Added various .cvsignore files in the CVS repository subdirs
9186 to make a "cvs update" really silent.
9187 [Ralf S. Engelschall]
9189 *) Recompiled the error-definition header files and added
9190 missing symbols to the Win32 linker tables.
9191 [Ralf S. Engelschall]
9193 *) Cleaned up the top-level documents;
9194 o new files: CHANGES and LICENSE
9195 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9196 o merged COPYRIGHT into LICENSE
9197 o removed obsolete TODO file
9198 o renamed MICROSOFT to INSTALL.W32
9199 [Ralf S. Engelschall]
9201 *) Removed dummy files from the 0.9.1b source tree:
9202 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9203 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9204 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9205 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9206 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9207 [Ralf S. Engelschall]
9209 *) Added various platform portability fixes.
9212 *) The Genesis of the OpenSSL rpject:
9213 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9214 Young and Tim J. Hudson created while they were working for C2Net until
9216 [The OpenSSL Project]
9219 Changes between 0.9.0b and 0.9.1b [not released]
9221 *) Updated a few CA certificates under certs/
9224 *) Changed some BIGNUM api stuff.
9227 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9228 DGUX x86, Linux Alpha, etc.
9231 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9232 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9236 *) Add -strparse option to asn1pars program which parses nested
9238 [Dr Stephen Henson <shenson@bigfoot.com>]
9240 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9243 *) DSA fix for "ca" program.
9246 *) Added "-genkey" option to "dsaparam" program.
9249 *) Added RIPE MD160 (rmd160) message digest.
9252 *) Added -a (all) option to "ssleay version" command.
9255 *) Added PLATFORM define which is the id given to Configure.
9258 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9261 *) Extended the ASN.1 parser routines.
9264 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9267 *) Added a BN_CTX to the BN library.
9270 *) Fixed the weak key values in DES library
9273 *) Changed API in EVP library for cipher aliases.
9276 *) Added support for RC2/64bit cipher.
9279 *) Converted the lhash library to the crypto/mem.c functions.
9282 *) Added more recognized ASN.1 object ids.
9285 *) Added more RSA padding checks for SSL/TLS.
9288 *) Added BIO proxy/filter functionality.
9291 *) Added extra_certs to SSL_CTX which can be used
9292 send extra CA certificates to the client in the CA cert chain sending
9293 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9296 *) Now Fortezza is denied in the authentication phase because
9297 this is key exchange mechanism is not supported by SSLeay at all.
9300 *) Additional PKCS1 checks.
9303 *) Support the string "TLSv1" for all TLS v1 ciphers.
9306 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9307 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9310 *) Fixed a few memory leaks.
9313 *) Fixed various code and comment typos.
9316 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9317 bytes sent in the client random.
9318 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob