5 Changes between 0.9.8k and 1.0 [xx XXX xxxx]
7 *) Alter match criteria in PKCS12_parse(). It used to try to use local
8 key ids to find matching certificates and keys but some PKCS#12 files
9 don't follow the (somewhat unwritten) rules and this strategy fails.
10 Now just gather all certificates together and the first private key
11 then look for the first certificate that matches the key.
14 *) Support use of registered digest and cipher names for dgst and cipher
15 commands instead of having to add each one as a special case. So now
22 openssl dgst -sha256 foo
24 and this works for ENGINE based algorithms too.
28 *) Update Gost ENGINE to support parameter files.
29 [Victor B. Wagner <vitus@cryptocom.ru>]
31 *) Support GeneralizedTime in ca utility.
32 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
34 *) Enhance the hash format used for certificate directory links. The new
35 form uses the canonical encoding (meaning equivalent names will work
36 even if they aren't identical) and uses SHA1 instead of MD5. This form
37 is incompatible with the older format and as a result c_rehash should
38 be used to rebuild symbolic links.
41 *) Make PKCS#8 the default write format for private keys, replacing the
42 traditional format. This form is standardised, more secure and doesn't
43 include an implicit MD5 dependency.
46 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
47 committed to OpenSSL should pass this lot as a minimum.
50 *) Add session ticket override functionality for use by EAP-FAST.
51 [Jouni Malinen <j@w1.fi>]
53 *) Modify HMAC functions to return a value. Since these can be implemented
54 in an ENGINE errors can occur.
57 *) Type-checked OBJ_bsearch_ex.
60 *) Type-checked OBJ_bsearch. Also some constification necessitated
61 by type-checking. Still to come: TXT_DB, bsearch(?),
62 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
66 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
67 seconds to a tm structure directly, instead of going through OS
68 specific date routines. This avoids any issues with OS routines such
69 as the year 2038 bug. New *_adj() functions for ASN1 time structures
70 and X509_time_adj_ex() to cover the extended range. The existing
71 X509_time_adj() is still usable and will no longer have any date issues.
74 *) Delta CRL support. New use deltas option which will attempt to locate
75 and search any appropriate delta CRLs available.
77 This work was sponsored by Google.
80 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
81 code and add additional score elements. Validate alternate CRL paths
82 as part of the CRL checking and indicate a new error "CRL path validation
83 error" in this case. Applications wanting additional details can use
84 the verify callback and check the new "parent" field. If this is not
85 NULL CRL path validation is taking place. Existing applications wont
86 see this because it requires extended CRL support which is off by
89 This work was sponsored by Google.
92 *) Support for freshest CRL extension.
94 This work was sponsored by Google.
97 *) Initial indirect CRL support. Currently only supported in the CRLs
98 passed directly and not via lookup. Process certificate issuer
99 CRL entry extension and lookup CRL entries by bother issuer name
100 and serial number. Check and process CRL issuer entry in IDP extension.
102 This work was sponsored by Google.
105 *) Add support for distinct certificate and CRL paths. The CRL issuer
106 certificate is validated separately in this case. Only enabled if
107 an extended CRL support flag is set: this flag will enable additional
108 CRL functionality in future.
110 This work was sponsored by Google.
113 *) Add support for policy mappings extension.
115 This work was sponsored by Google.
118 *) Fixes to pathlength constraint, self issued certificate handling,
119 policy processing to align with RFC3280 and PKITS tests.
121 This work was sponsored by Google.
124 *) Support for name constraints certificate extension. DN, email, DNS
125 and URI types are currently supported.
127 This work was sponsored by Google.
130 *) To cater for systems that provide a pointer-based thread ID rather
131 than numeric, deprecate the current numeric thread ID mechanism and
132 replace it with a structure and associated callback type. This
133 mechanism allows a numeric "hash" to be extracted from a thread ID in
134 either case, and on platforms where pointers are larger than 'long',
135 mixing is done to help ensure the numeric 'hash' is usable even if it
136 can't be guaranteed unique. The default mechanism is to use "&errno"
137 as a pointer-based thread ID to distinguish between threads.
139 Applications that want to provide their own thread IDs should now use
140 CRYPTO_THREADID_set_callback() to register a callback that will call
141 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
143 Note that ERR_remove_state() is now deprecated, because it is tied
144 to the assumption that thread IDs are numeric. ERR_remove_state(0)
145 to free the current thread's error state should be replaced by
146 ERR_remove_thread_state(NULL).
148 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
149 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
150 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
151 application was previously providing a numeric thread callback that
152 was inappropriate for distinguishing threads, then uniqueness might
153 have been obtained with &errno that happened immediately in the
154 intermediate development versions of OpenSSL; this is no longer the
155 case, the numeric thread callback will now override the automatic use
157 [Geoff Thorpe, with help from Bodo Moeller]
159 *) Initial support for different CRL issuing certificates. This covers a
160 simple case where the self issued certificates in the chain exist and
161 the real CRL issuer is higher in the existing chain.
163 This work was sponsored by Google.
166 *) Removed effectively defunct crypto/store from the build.
169 *) Revamp of STACK to provide stronger type-checking. Still to come:
170 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
171 ASN1_STRING, CONF_VALUE.
174 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
175 RAM on SSL connections. This option can save about 34k per idle SSL.
178 *) Revamp of LHASH to provide stronger type-checking. Still to come:
179 STACK, TXT_DB, bsearch, qsort.
182 *) Initial support for Cryptographic Message Syntax (aka CMS) based
183 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
184 support for data, signedData, compressedData, digestedData and
185 encryptedData, envelopedData types included. Scripts to check against
186 RFC4134 examples draft and interop and consistency checks of many
187 content types and variants.
190 *) Add options to enc utility to support use of zlib compression BIO.
193 *) Extend mk1mf to support importing of options and assembly language
194 files from Configure script, currently only included in VC-WIN32.
195 The assembly language rules can now optionally generate the source
196 files from the associated perl scripts.
199 *) Implement remaining functionality needed to support GOST ciphersuites.
200 Interop testing has been performed using CryptoPro implementations.
201 [Victor B. Wagner <vitus@cryptocom.ru>]
203 *) s390x assembler pack.
206 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
210 *) Implement Opaque PRF Input TLS extension as specified in
211 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
212 official specification yet and no extension type assignment by
213 IANA exists, this extension (for now) will have to be explicitly
214 enabled when building OpenSSL by providing the extension number
215 to use. For example, specify an option
217 -DTLSEXT_TYPE_opaque_prf_input=0x9527
219 to the "config" or "Configure" script to enable the extension,
220 assuming extension number 0x9527 (which is a completely arbitrary
221 and unofficial assignment based on the MD5 hash of the Internet
222 Draft). Note that by doing so, you potentially lose
223 interoperability with other TLS implementations since these might
224 be using the same extension number for other purposes.
226 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
227 opaque PRF input value to use in the handshake. This will create
228 an interal copy of the length-'len' string at 'src', and will
229 return non-zero for success.
231 To get more control and flexibility, provide a callback function
234 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
235 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
239 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
242 Callback function 'cb' will be called in handshakes, and is
243 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
244 Argument 'arg' is for application purposes (the value as given to
245 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
246 be provided to the callback function). The callback function
247 has to return non-zero to report success: usually 1 to use opaque
248 PRF input just if possible, or 2 to enforce use of the opaque PRF
249 input. In the latter case, the library will abort the handshake
250 if opaque PRF input is not successfully negotiated.
252 Arguments 'peerinput' and 'len' given to the callback function
253 will always be NULL and 0 in the case of a client. A server will
254 see the client's opaque PRF input through these variables if
255 available (NULL and 0 otherwise). Note that if the server
256 provides an opaque PRF input, the length must be the same as the
257 length of the client's opaque PRF input.
259 Note that the callback function will only be called when creating
260 a new session (session resumption can resume whatever was
261 previously negotiated), and will not be called in SSL 2.0
262 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
263 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
264 for applications that need to enforce opaque PRF input.
268 *) Update ssl code to support digests other than SHA1+MD5 for handshake
271 [Victor B. Wagner <vitus@cryptocom.ru>]
273 *) Add RFC4507 support to OpenSSL. This includes the corrections in
274 RFC4507bis. The encrypted ticket format is an encrypted encoded
275 SSL_SESSION structure, that way new session features are automatically
278 If a client application caches session in an SSL_SESSION structure
279 support is transparent because tickets are now stored in the encoded
282 The SSL_CTX structure automatically generates keys for ticket
283 protection in servers so again support should be possible
284 with no application modification.
286 If a client or server wishes to disable RFC4507 support then the option
287 SSL_OP_NO_TICKET can be set.
289 Add a TLS extension debugging callback to allow the contents of any client
290 or server extensions to be examined.
292 This work was sponsored by Google.
295 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
296 OpenSSL should now compile cleanly on gcc 4.2
297 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
299 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
300 support including streaming MAC support: this is required for GOST
302 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
304 *) Add option -stream to use PKCS#7 streaming in smime utility. New
305 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
306 to output in BER and PEM format.
309 *) Experimental support for use of HMAC via EVP_PKEY interface. This
310 allows HMAC to be handled via the EVP_DigestSign*() interface. The
311 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
312 ENGINE support for HMAC keys which are unextractable. New -mac and
313 -macopt options to dgst utility.
316 *) New option -sigopt to dgst utility. Update dgst to use
317 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
318 alternative signing paramaters such as X9.31 or PSS in the dgst
322 *) Change ssl_cipher_apply_rule(), the internal function that does
323 the work each time a ciphersuite string requests enabling
324 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
325 removing ("!foo+bar") a class of ciphersuites: Now it maintains
326 the order of disabled ciphersuites such that those ciphersuites
327 that most recently went from enabled to disabled not only stay
328 in order with respect to each other, but also have higher priority
329 than other disabled ciphersuites the next time ciphersuites are
332 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
333 the same ciphersuites as with "HIGH" alone, but in a specific
334 order where the PSK ciphersuites come first (since they are the
335 most recently disabled ciphersuites when "HIGH" is parsed).
337 Also, change ssl_create_cipher_list() (using this new
338 funcionality) such that between otherwise identical
339 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
343 *) Change ssl_create_cipher_list() so that it automatically
344 arranges the ciphersuites in reasonable order before starting
345 to process the rule string. Thus, the definition for "DEFAULT"
346 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
347 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
348 This makes it much easier to arrive at a reasonable default order
349 in applications for which anonymous ciphers are OK (meaning
350 that you can't actually use DEFAULT).
351 [Bodo Moeller; suggested by Victor Duchovni]
353 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
354 processing) into multiple integers instead of setting
355 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
356 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
357 (These masks as well as the individual bit definitions are hidden
358 away into the non-exported interface ssl/ssl_locl.h, so this
359 change to the definition of the SSL_CIPHER structure shouldn't
360 affect applications.) This give us more bits for each of these
361 categories, so there is no longer a need to coagulate AES128 and
362 AES256 into a single algorithm bit, and to coagulate Camellia128
363 and Camellia256 into a single algorithm bit, which has led to all
366 Thus, among other things, the kludge introduced in 0.9.7m and
367 0.9.8e for masking out AES256 independently of AES128 or masking
368 out Camellia256 independently of AES256 is not needed here in 0.9.9.
370 With the change, we also introduce new ciphersuite aliases that
371 so far were missing: "AES128", "AES256", "CAMELLIA128", and
375 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
376 Use the leftmost N bytes of the signature input if the input is
377 larger than the prime q (with N being the size in bytes of q).
380 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
381 it yet and it is largely untested.
384 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
387 *) Initial incomplete changes to avoid need for function casts in OpenSSL
388 some compilers (gcc 4.2 and later) reject their use. Safestack is
389 reimplemented. Update ASN1 to avoid use of legacy functions.
392 *) Win32/64 targets are linked with Winsock2.
395 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
396 to external functions. This can be used to increase CRL handling
397 efficiency especially when CRLs are very large by (for example) storing
398 the CRL revoked certificates in a database.
401 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
402 new CRLs added to a directory can be used. New command line option
403 -verify_return_error to s_client and s_server. This causes real errors
404 to be returned by the verify callback instead of carrying on no matter
405 what. This reflects the way a "real world" verify callback would behave.
408 *) GOST engine, supporting several GOST algorithms and public key formats.
409 Kindly donated by Cryptocom.
412 *) Partial support for Issuing Distribution Point CRL extension. CRLs
413 partitioned by DP are handled but no indirect CRL or reason partitioning
414 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
415 selected via a scoring technique which handles IDP and AKID in CRLs.
418 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
419 will ultimately be used for all verify operations: this will remove the
420 X509_STORE dependency on certificate verification and allow alternative
421 lookup methods. X509_STORE based implementations of these two callbacks.
424 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
425 Modify get_crl() to find a valid (unexpired) CRL if possible.
428 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
429 this would be called X509_CRL_cmp() but that name is already used by
430 a function that just compares CRL issuer names. Cache several CRL
431 extensions in X509_CRL structure and cache CRLDP in X509.
434 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
435 this maps equivalent X509_NAME structures into a consistent structure.
436 Name comparison can then be performed rapidly using memcmp().
439 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
443 *) Allow digests to supply their own micalg string for S/MIME type using
444 the ctrl EVP_MD_CTRL_MICALG.
447 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
448 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
449 ctrl. It can then customise the structure before and/or after signing
453 *) New function OBJ_add_sigid() to allow application defined signature OIDs
454 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
455 to free up any added signature OIDs.
458 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
459 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
460 digest and cipher tables. New options added to openssl utility:
461 list-message-digest-algorithms and list-cipher-algorithms.
464 *) Change the array representation of binary polynomials: the list
465 of degrees of non-zero coefficients is now terminated with -1.
466 Previously it was terminated with 0, which was also part of the
467 value; thus, the array representation was not applicable to
468 polynomials where t^0 has coefficient zero. This change makes
469 the array representation useful in a more general context.
472 *) Various modifications and fixes to SSL/TLS cipher string
473 handling. For ECC, the code now distinguishes between fixed ECDH
474 with RSA certificates on the one hand and with ECDSA certificates
475 on the other hand, since these are separate ciphersuites. The
476 unused code for Fortezza ciphersuites has been removed.
478 For consistency with EDH, ephemeral ECDH is now called "EECDH"
479 (not "ECDHE"). For consistency with the code for DH
480 certificates, use of ECDH certificates is now considered ECDH
481 authentication, not RSA or ECDSA authentication (the latter is
482 merely the CA's signing algorithm and not actively used in the
485 The temporary ciphersuite alias "ECCdraft" is no longer
486 available, and ECC ciphersuites are no longer excluded from "ALL"
487 and "DEFAULT". The following aliases now exist for RFC 4492
488 ciphersuites, most of these by analogy with the DH case:
490 kECDHr - ECDH cert, signed with RSA
491 kECDHe - ECDH cert, signed with ECDSA
492 kECDH - ECDH cert (signed with either RSA or ECDSA)
493 kEECDH - ephemeral ECDH
494 ECDH - ECDH cert or ephemeral ECDH
500 AECDH - anonymous ECDH
501 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
505 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
506 Use correct micalg parameters depending on digest(s) in signed message.
509 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
510 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
513 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
514 an engine to register a method. Add ENGINE lookups for methods and
515 functional reference processing.
518 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
519 EVP_{Sign,Verify}* which allow an application to customise the signature
523 *) New -resign option to smime utility. This adds one or more signers
524 to an existing PKCS#7 signedData structure. Also -md option to use an
525 alternative message digest algorithm for signing.
528 *) Tidy up PKCS#7 routines and add new functions to make it easier to
529 create PKCS7 structures containing multiple signers. Update smime
530 application to support multiple signers.
533 *) New -macalg option to pkcs12 utility to allow setting of an alternative
537 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
538 Reorganize PBE internals to lookup from a static table using NIDs,
539 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
540 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
541 PRF which will be automatically used with PBES2.
544 *) Replace the algorithm specific calls to generate keys in "req" with the
548 *) Update PKCS#7 enveloped data routines to use new API. This is now
549 supported by any public key method supporting the encrypt operation. A
550 ctrl is added to allow the public key algorithm to examine or modify
551 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
555 *) Add a ctrl to asn1 method to allow a public key algorithm to express
556 a default digest type to use. In most cases this will be SHA1 but some
557 algorithms (such as GOST) need to specify an alternative digest. The
558 return value indicates how strong the prefernce is 1 means optional and
559 2 is mandatory (that is it is the only supported type). Modify
560 ASN1_item_sign() to accept a NULL digest argument to indicate it should
561 use the default md. Update openssl utilities to use the default digest
562 type for signing if it is not explicitly indicated.
565 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
566 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
567 signing method from the key type. This effectively removes the link
568 between digests and public key types.
571 *) Add an OID cross reference table and utility functions. Its purpose is to
572 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
573 rsaEncryption. This will allow some of the algorithm specific hackery
574 needed to use the correct OID to be removed.
577 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
578 structures for PKCS7_sign(). They are now set up by the relevant public
582 *) Add provisional EC pkey method with support for ECDSA and ECDH.
585 *) Add support for key derivation (agreement) in the API, DH method and
589 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
590 public and private key formats. As a side effect these add additional
591 command line functionality not previously available: DSA signatures can be
592 generated and verified using pkeyutl and DH key support and generation in
597 [Oliver Tappe <zooey@hirschkaefer.de>]
599 *) New make target "install_html_docs" installs HTML renditions of the
601 [Oliver Tappe <zooey@hirschkaefer.de>]
603 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
604 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
605 support key and parameter generation and add initial key generation
606 functionality for RSA.
609 *) Add functions for main EVP_PKEY_method operations. The undocumented
610 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
611 EVP_PKEY_{encrypt,decrypt}_old.
614 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
615 key API, doesn't do much yet.
618 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
619 public key algorithms. New option to openssl utility:
620 "list-public-key-algorithms" to print out info.
623 *) Implement the Supported Elliptic Curves Extension for
624 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
627 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
628 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
631 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
632 utilities such as rsa, dsa, dsaparam etc except they process any key
636 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
637 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
638 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
642 *) Initial support for pluggable public key ASN1.
643 De-spaghettify the public key ASN1 handling. Move public and private
644 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
645 algorithm specific handling to a single module within the relevant
646 algorithm directory. Add functions to allow (near) opaque processing
647 of public and private key structures.
650 *) Implement the Supported Point Formats Extension for
651 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
654 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
655 for the psk identity [hint] and the psk callback functions to the
656 SSL_SESSION, SSL and SSL_CTX structure.
659 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
663 SSL_CTX_use_psk_identity_hint
664 SSL_get_psk_identity_hint
666 SSL_use_psk_identity_hint
668 [Mika Kousa and Pasi Eronen of Nokia Corporation]
670 *) Add RFC 3161 compliant time stamp request creation, response generation
671 and response verification functionality.
672 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
674 *) Add initial support for TLS extensions, specifically for the server_name
675 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
676 have new members for a host name. The SSL data structure has an
677 additional member SSL_CTX *initial_ctx so that new sessions can be
678 stored in that context to allow for session resumption, even after the
679 SSL has been switched to a new SSL_CTX in reaction to a client's
680 server_name extension.
682 New functions (subject to change):
685 SSL_get_servername_type()
688 New CTRL codes and macros (subject to change):
690 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
691 - SSL_CTX_set_tlsext_servername_callback()
692 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
693 - SSL_CTX_set_tlsext_servername_arg()
694 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
696 openssl s_client has a new '-servername ...' option.
698 openssl s_server has new options '-servername_host ...', '-cert2 ...',
699 '-key2 ...', '-servername_fatal' (subject to change). This allows
700 testing the HostName extension for a specific single host name ('-cert'
701 and '-key' remain fallbacks for handshakes without HostName
702 negotiation). If the unrecogninzed_name alert has to be sent, this by
703 default is a warning; it becomes fatal with the '-servername_fatal'
706 [Peter Sylvester, Remy Allais, Christophe Renou]
708 *) Whirlpool hash implementation is added.
711 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
712 bn(64,32). Because of instruction set limitations it doesn't have
713 any negative impact on performance. This was done mostly in order
714 to make it possible to share assembler modules, such as bn_mul_mont
715 implementations, between 32- and 64-bit builds without hassle.
718 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
719 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
723 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
724 dedicated Montgomery multiplication procedure, is introduced.
725 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
726 "64-bit" performance on certain 32-bit targets.
729 *) New option SSL_OP_NO_COMP to disable use of compression selectively
730 in SSL structures. New SSL ctrl to set maximum send fragment size.
731 Save memory by seeting the I/O buffer sizes dynamically instead of
732 using the maximum available value.
735 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
736 in addition to the text details.
739 *) Very, very preliminary EXPERIMENTAL support for printing of general
740 ASN1 structures. This currently produces rather ugly output and doesn't
741 handle several customised structures at all.
744 *) Integrated support for PVK file format and some related formats such
745 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
746 these in the 'rsa' and 'dsa' utilities.
749 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
752 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
753 place for the (very old) "NETSCAPE" format certificates which are now
754 handled using new ASN1 code equivalents.
757 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
758 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
759 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
762 *) Modify CRL distribution points extension code to print out previously
763 unsupported fields. Enhance extension setting code to allow setting of
767 *) Add print and set support for Issuing Distribution Point CRL extension.
770 *) Change 'Configure' script to enable Camellia by default.
773 Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
776 [Ilya O. <vrghost@gmail.com>]
778 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
780 *) Don't set val to NULL when freeing up structures, it is freed up by
781 underlying code. If sizeof(void *) > sizeof(long) this can result in
782 zeroing past the valid field. (CVE-2009-0789)
783 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
785 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
786 checked correctly. This would allow some invalid signed attributes to
787 appear to verify correctly. (CVE-2009-0591)
788 [Ivan Nestlerode <inestlerode@us.ibm.com>]
790 *) Reject UniversalString and BMPString types with invalid lengths. This
791 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
792 a legal length. (CVE-2009-0590)
795 *) Set S/MIME signing as the default purpose rather than setting it
796 unconditionally. This allows applications to override it at the store
800 *) Permit restricted recursion of ASN1 strings. This is needed in practice
801 to handle some structures.
804 *) Improve efficiency of mem_gets: don't search whole buffer each time
806 [Jeremy Shapiro <jnshapir@us.ibm.com>]
808 *) New -hex option for openssl rand.
811 *) Print out UTF8String and NumericString when parsing ASN1.
814 *) Support NumericString type for name components.
817 *) Allow CC in the environment to override the automatically chosen
818 compiler. Note that nothing is done to ensure flags work with the
822 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
824 *) Properly check EVP_VerifyFinal() and similar return values
826 [Ben Laurie, Bodo Moeller, Google Security Team]
828 *) Enable TLS extensions by default.
831 *) Allow the CHIL engine to be loaded, whether the application is
832 multithreaded or not. (This does not release the developer from the
833 obligation to set up the dynamic locking callbacks.)
834 [Sander Temme <sander@temme.net>]
836 *) Use correct exit code if there is an error in dgst command.
837 [Steve Henson; problem pointed out by Roland Dirlewanger]
839 *) Tweak Configure so that you need to say "experimental-jpake" to enable
840 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
843 *) Add experimental JPAKE support, including demo authentication in
844 s_client and s_server.
847 *) Set the comparison function in v3_addr_canonize().
848 [Rob Austein <sra@hactrn.net>]
850 *) Add support for XMPP STARTTLS in s_client.
851 [Philip Paeps <philip@freebsd.org>]
853 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
854 to ensure that even with this option, only ciphersuites in the
855 server's preference list will be accepted. (Note that the option
856 applies only when resuming a session, so the earlier behavior was
857 just about the algorithm choice for symmetric cryptography.)
860 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
862 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
863 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
866 *) The fix in 0.9.8c that supposedly got rid of unsafe
867 double-checked locking was incomplete for RSA blinding,
868 addressing just one layer of what turns out to have been
869 doubly unsafe triple-checked locking.
871 So now fix this for real by retiring the MONT_HELPER macro
872 in crypto/rsa/rsa_eay.c.
874 [Bodo Moeller; problem pointed out by Marius Schilder]
876 *) Various precautionary measures:
878 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
880 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
881 (NB: This would require knowledge of the secret session ticket key
882 to exploit, in which case you'd be SOL either way.)
884 - Change bn_nist.c so that it will properly handle input BIGNUMs
885 outside the expected range.
887 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
890 [Neel Mehta, Bodo Moeller]
892 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
893 the load fails. Useful for distros.
894 [Ben Laurie and the FreeBSD team]
896 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
899 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
902 *) Expand ENGINE to support engine supplied SSL client certificate functions.
904 This work was sponsored by Logica.
907 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
908 keystores. Support for SSL/TLS client authentication too.
909 Not compiled unless enable-capieng specified to Configure.
911 This work was sponsored by Logica.
914 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
915 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
916 attribute creation routines such as certifcate requests and PKCS#12
920 Changes between 0.9.8g and 0.9.8h [28 May 2008]
922 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
923 handshake which could lead to a cilent crash as found using the
924 Codenomicon TLS test suite (CVE-2008-1672)
925 [Steve Henson, Mark Cox]
927 *) Fix double free in TLS server name extensions which could lead to
928 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
931 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
933 Clear the error queue to ensure that error entries left from
934 older function calls do not interfere with the correct operation.
935 [Lutz Jaenicke, Erik de Castro Lopo]
937 *) Remove root CA certificates of commercial CAs:
939 The OpenSSL project does not recommend any specific CA and does not
940 have any policy with respect to including or excluding any CA.
941 Therefore it does not make any sense to ship an arbitrary selection
942 of root CA certificates with the OpenSSL software.
945 *) RSA OAEP patches to fix two separate invalid memory reads.
946 The first one involves inputs when 'lzero' is greater than
947 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
948 before the beginning of from). The second one involves inputs where
949 the 'db' section contains nothing but zeroes (there is a one-byte
950 invalid read after the end of 'db').
951 [Ivan Nestlerode <inestlerode@us.ibm.com>]
953 *) Partial backport from 0.9.9-dev:
955 Introduce bn_mul_mont (dedicated Montgomery multiplication
956 procedure) as a candidate for BIGNUM assembler implementation.
957 While 0.9.9-dev uses assembler for various architectures, only
958 x86_64 is available by default here in the 0.9.8 branch, and
959 32-bit x86 is available through a compile-time setting.
961 To try the 32-bit x86 assembler implementation, use Configure
962 option "enable-montasm" (which exists only for this backport).
964 As "enable-montasm" for 32-bit x86 disclaims code stability
965 anyway, in this constellation we activate additional code
966 backported from 0.9.9-dev for further performance improvements,
967 namely BN_from_montgomery_word. (To enable this otherwise,
968 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
970 [Andy Polyakov (backport partially by Bodo Moeller)]
972 *) Add TLS session ticket callback. This allows an application to set
973 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
974 values. This is useful for key rollover for example where several key
975 sets may exist with different names.
978 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
979 This was broken until now in 0.9.8 releases, such that the only way
980 a registered ENGINE could be used (assuming it initialises
981 successfully on the host) was to explicitly set it as the default
982 for the relevant algorithms. This is in contradiction with 0.9.7
983 behaviour and the documentation. With this fix, when an ENGINE is
984 registered into a given algorithm's table of implementations, the
985 'uptodate' flag is reset so that auto-discovery will be used next
986 time a new context for that algorithm attempts to select an
988 [Ian Lister (tweaked by Geoff Thorpe)]
990 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
991 implemention in the following ways:
993 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
996 Lack of BER streaming support means one pass streaming processing is
997 only supported if data is detached: setting the streaming flag is
998 ignored for embedded content.
1000 CMS support is disabled by default and must be explicitly enabled
1001 with the enable-cms configuration option.
1004 *) Update the GMP engine glue to do direct copies between BIGNUM and
1005 mpz_t when openssl and GMP use the same limb size. Otherwise the
1006 existing "conversion via a text string export" trick is still used.
1007 [Paul Sheer <paulsheer@gmail.com>]
1009 *) Zlib compression BIO. This is a filter BIO which compressed and
1010 uncompresses any data passed through it.
1013 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1014 RFC3394 compatible AES key wrapping.
1017 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1018 sets string data without copying. X509_ALGOR_set0() and
1019 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1020 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1021 from an X509_ATTRIBUTE structure optionally checking it occurs only
1022 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1026 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1027 to get the expected BN_FLG_CONSTTIME behavior.
1028 [Bodo Moeller (Google)]
1032 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1033 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1034 - added some more tests to do_tests.pl
1035 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1036 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1037 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1038 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1039 - various changes to netware.pl to enable gcc-cross builds on Win32
1041 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1042 - various changes to fix missing prototype warnings
1043 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1044 - added AES, WHIRLPOOL and CPUID assembler code to build files
1045 - added missing AES assembler make rules to mk1mf.pl
1046 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1047 [Guenter Knauf <eflash@gmx.net>]
1049 *) Implement certificate status request TLS extension defined in RFC3546.
1050 A client can set the appropriate parameters and receive the encoded
1051 OCSP response via a callback. A server can query the supplied parameters
1052 and set the encoded OCSP response in the callback. Add simplified examples
1053 to s_client and s_server.
1056 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1058 *) Fix various bugs:
1059 + Binary incompatibility of ssl_ctx_st structure
1060 + DTLS interoperation with non-compliant servers
1061 + Don't call get_session_cb() without proposed session
1062 + Fix ia64 assembler code
1063 [Andy Polyakov, Steve Henson]
1065 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1067 *) DTLS Handshake overhaul. There were longstanding issues with
1068 OpenSSL DTLS implementation, which were making it impossible for
1069 RFC 4347 compliant client to communicate with OpenSSL server.
1070 Unfortunately just fixing these incompatibilities would "cut off"
1071 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1072 server keeps tolerating non RFC compliant syntax. The opposite is
1073 not true, 0.9.8f client can not communicate with earlier server.
1074 This update even addresses CVE-2007-4995.
1077 *) Changes to avoid need for function casts in OpenSSL: some compilers
1078 (gcc 4.2 and later) reject their use.
1079 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1082 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1083 RFC4507bis. The encrypted ticket format is an encrypted encoded
1084 SSL_SESSION structure, that way new session features are automatically
1087 If a client application caches session in an SSL_SESSION structure
1088 support is transparent because tickets are now stored in the encoded
1091 The SSL_CTX structure automatically generates keys for ticket
1092 protection in servers so again support should be possible
1093 with no application modification.
1095 If a client or server wishes to disable RFC4507 support then the option
1096 SSL_OP_NO_TICKET can be set.
1098 Add a TLS extension debugging callback to allow the contents of any client
1099 or server extensions to be examined.
1101 This work was sponsored by Google.
1104 *) Add initial support for TLS extensions, specifically for the server_name
1105 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1106 have new members for a host name. The SSL data structure has an
1107 additional member SSL_CTX *initial_ctx so that new sessions can be
1108 stored in that context to allow for session resumption, even after the
1109 SSL has been switched to a new SSL_CTX in reaction to a client's
1110 server_name extension.
1112 New functions (subject to change):
1114 SSL_get_servername()
1115 SSL_get_servername_type()
1118 New CTRL codes and macros (subject to change):
1120 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1121 - SSL_CTX_set_tlsext_servername_callback()
1122 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1123 - SSL_CTX_set_tlsext_servername_arg()
1124 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1126 openssl s_client has a new '-servername ...' option.
1128 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1129 '-key2 ...', '-servername_fatal' (subject to change). This allows
1130 testing the HostName extension for a specific single host name ('-cert'
1131 and '-key' remain fallbacks for handshakes without HostName
1132 negotiation). If the unrecogninzed_name alert has to be sent, this by
1133 default is a warning; it becomes fatal with the '-servername_fatal'
1136 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1138 *) Add AES and SSE2 assembly language support to VC++ build.
1141 *) Mitigate attack on final subtraction in Montgomery reduction.
1144 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1145 (which previously caused an internal error).
1148 *) Squeeze another 10% out of IGE mode when in != out.
1151 *) AES IGE mode speedup.
1152 [Dean Gaudet (Google)]
1154 *) Add the Korean symmetric 128-bit cipher SEED (see
1155 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1156 add SEED ciphersuites from RFC 4162:
1158 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1159 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1160 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1161 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1163 To minimize changes between patchlevels in the OpenSSL 0.9.8
1164 series, SEED remains excluded from compilation unless OpenSSL
1165 is configured with 'enable-seed'.
1166 [KISA, Bodo Moeller]
1168 *) Mitigate branch prediction attacks, which can be practical if a
1169 single processor is shared, allowing a spy process to extract
1170 information. For detailed background information, see
1171 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1172 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1173 and Necessary Software Countermeasures"). The core of the change
1174 are new versions BN_div_no_branch() and
1175 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1176 respectively, which are slower, but avoid the security-relevant
1177 conditional branches. These are automatically called by BN_div()
1178 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1179 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1180 remove a conditional branch.
1182 BN_FLG_CONSTTIME is the new name for the previous
1183 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1184 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1185 in the exponent causes BN_mod_exp_mont() to use the alternative
1186 implementation in BN_mod_exp_mont_consttime().) The old name
1187 remains as a deprecated alias.
1189 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1190 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1191 constant-time implementations for more than just exponentiation.
1192 Here too the old name is kept as a deprecated alias.
1194 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1195 the BN_BLINDING structure gets an independent copy of the
1196 modulus. This means that the previous "BIGNUM *m" argument to
1197 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1198 essentially becomes "const BIGNUM *m", although we can't actually
1199 change this in the header file before 0.9.9. It allows
1200 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1201 enable BN_FLG_CONSTTIME.
1203 [Matthew D Wood (Intel Corp)]
1205 *) In the SSL/TLS server implementation, be strict about session ID
1206 context matching (which matters if an application uses a single
1207 external cache for different purposes). Previously,
1208 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1209 set. This did ensure strict client verification, but meant that,
1210 with applications using a single external cache for quite
1211 different requirements, clients could circumvent ciphersuite
1212 restrictions for a given session ID context by starting a session
1213 in a different context.
1216 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1217 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1218 authentication-only ciphersuites.
1221 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1222 not complete and could lead to a possible single byte overflow
1223 (CVE-2007-5135) [Ben Laurie]
1225 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1227 *) Since AES128 and AES256 (and similarly Camellia128 and
1228 Camellia256) share a single mask bit in the logic of
1229 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1230 kludge to work properly if AES128 is available and AES256 isn't
1231 (or if Camellia128 is available and Camellia256 isn't).
1234 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1235 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1236 When a point or a seed is encoded in a BIT STRING, we need to
1237 prevent the removal of trailing zero bits to get the proper DER
1238 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1239 of a NamedBitList, for which trailing 0 bits need to be removed.)
1242 *) Have SSL/TLS server implementation tolerate "mismatched" record
1243 protocol version while receiving ClientHello even if the
1244 ClientHello is fragmented. (The server can't insist on the
1245 particular protocol version it has chosen before the ServerHello
1246 message has informed the client about his choice.)
1249 *) Add RFC 3779 support.
1250 [Rob Austein for ARIN, Ben Laurie]
1252 *) Load error codes if they are not already present instead of using a
1253 static variable. This allows them to be cleanly unloaded and reloaded.
1254 Improve header file function name parsing.
1257 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1258 or CAPABILITY handshake as required by RFCs.
1261 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1263 *) Introduce limits to prevent malicious keys being able to
1264 cause a denial of service. (CVE-2006-2940)
1265 [Steve Henson, Bodo Moeller]
1267 *) Fix ASN.1 parsing of certain invalid structures that can result
1268 in a denial of service. (CVE-2006-2937) [Steve Henson]
1270 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1271 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1273 *) Fix SSL client code which could crash if connecting to a
1274 malicious SSLv2 server. (CVE-2006-4343)
1275 [Tavis Ormandy and Will Drewry, Google Security Team]
1277 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1278 match only those. Before that, "AES256-SHA" would be interpreted
1279 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1280 the same strength classification in 0.9.7h) as we currently only
1281 have a single AES bit in the ciphersuite description bitmap.
1282 That change, however, also applied to ciphersuite strings such as
1283 "RC4-MD5" that intentionally matched multiple ciphersuites --
1284 namely, SSL 2.0 ciphersuites in addition to the more common ones
1285 from SSL 3.0/TLS 1.0.
1287 So we change the selection algorithm again: Naming an explicit
1288 ciphersuite selects this one ciphersuite, and any other similar
1289 ciphersuite (same bitmap) from *other* protocol versions.
1290 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1291 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1293 Since SSL 2.0 does not have any ciphersuites for which the
1294 128/256 bit distinction would be relevant, this works for now.
1295 The proper fix will be to use different bits for AES128 and
1296 AES256, which would have avoided the problems from the beginning;
1297 however, bits are scarce, so we can only do this in a new release
1298 (not just a patchlevel) when we can change the SSL_CIPHER
1299 definition to split the single 'unsigned long mask' bitmap into
1300 multiple values to extend the available space.
1304 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1306 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1307 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1309 *) Add AES IGE and biIGE modes.
1312 *) Change the Unix randomness entropy gathering to use poll() when
1313 possible instead of select(), since the latter has some
1314 undesirable limitations.
1315 [Darryl Miles via Richard Levitte and Bodo Moeller]
1317 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1318 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1319 cannot be implicitly activated as part of, e.g., the "AES" alias.
1320 However, please upgrade to OpenSSL 0.9.9[-dev] for
1321 non-experimental use of the ECC ciphersuites to get TLS extension
1322 support, which is required for curve and point format negotiation
1323 to avoid potential handshake problems.
1326 *) Disable rogue ciphersuites:
1328 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1329 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1330 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1332 The latter two were purportedly from
1333 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1336 Also deactivate the remaining ciphersuites from
1337 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1338 unofficial, and the ID has long expired.
1341 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1342 dual-core machines) and other potential thread-safety issues.
1345 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1346 versions), which is now available for royalty-free use
1347 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1348 Also, add Camellia TLS ciphersuites from RFC 4132.
1350 To minimize changes between patchlevels in the OpenSSL 0.9.8
1351 series, Camellia remains excluded from compilation unless OpenSSL
1352 is configured with 'enable-camellia'.
1355 *) Disable the padding bug check when compression is in use. The padding
1356 bug check assumes the first packet is of even length, this is not
1357 necessarily true if compresssion is enabled and can result in false
1358 positives causing handshake failure. The actual bug test is ancient
1359 code so it is hoped that implementations will either have fixed it by
1360 now or any which still have the bug do not support compression.
1363 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1365 *) When applying a cipher rule check to see if string match is an explicit
1366 cipher suite and only match that one cipher suite if it is.
1369 *) Link in manifests for VC++ if needed.
1370 [Austin Ziegler <halostatue@gmail.com>]
1372 *) Update support for ECC-based TLS ciphersuites according to
1373 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1374 TLS extensions, which are supported starting with the 0.9.9
1375 branch, not in the OpenSSL 0.9.8 branch).
1378 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1379 opaque EVP_CIPHER_CTX handling.
1382 *) Fixes and enhancements to zlib compression code. We now only use
1383 "zlib1.dll" and use the default __cdecl calling convention on Win32
1384 to conform with the standards mentioned here:
1385 http://www.zlib.net/DLL_FAQ.txt
1386 Static zlib linking now works on Windows and the new --with-zlib-include
1387 --with-zlib-lib options to Configure can be used to supply the location
1388 of the headers and library. Gracefully handle case where zlib library
1392 *) Several fixes and enhancements to the OID generation code. The old code
1393 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1394 handle numbers larger than ULONG_MAX, truncated printing and had a
1395 non standard OBJ_obj2txt() behaviour.
1398 *) Add support for building of engines under engine/ as shared libraries
1399 under VC++ build system.
1402 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1403 Hopefully, we will not see any false combination of paths any more.
1406 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1408 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1409 (part of SSL_OP_ALL). This option used to disable the
1410 countermeasure against man-in-the-middle protocol-version
1411 rollback in the SSL 2.0 server implementation, which is a bad
1412 idea. (CVE-2005-2969)
1414 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1415 for Information Security, National Institute of Advanced Industrial
1416 Science and Technology [AIST], Japan)]
1418 *) Add two function to clear and return the verify parameter flags.
1421 *) Keep cipherlists sorted in the source instead of sorting them at
1422 runtime, thus removing the need for a lock.
1425 *) Avoid some small subgroup attacks in Diffie-Hellman.
1426 [Nick Mathewson and Ben Laurie]
1428 *) Add functions for well-known primes.
1431 *) Extended Windows CE support.
1432 [Satoshi Nakamura and Andy Polyakov]
1434 *) Initialize SSL_METHOD structures at compile time instead of during
1435 runtime, thus removing the need for a lock.
1438 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1439 attempting to decrypt each encrypted key in turn. Add support to
1443 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1445 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1448 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1451 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1452 key into the same file any more.
1455 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1458 *) Add -utf8 command line and config file option to 'ca'.
1459 [Stefan <stf@udoma.org]
1461 *) Removed the macro des_crypt(), as it seems to conflict with some
1462 libraries. Use DES_crypt().
1465 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1466 involves renaming the source and generated shared-libs for
1467 both. The engines will accept the corrected or legacy ids
1468 ('ncipher' and '4758_cca' respectively) when binding. NB,
1469 this only applies when building 'shared'.
1470 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1472 *) Add attribute functions to EVP_PKEY structure. Modify
1473 PKCS12_create() to recognize a CSP name attribute and
1474 use it. Make -CSP option work again in pkcs12 utility.
1477 *) Add new functionality to the bn blinding code:
1478 - automatic re-creation of the BN_BLINDING parameters after
1479 a fixed number of uses (currently 32)
1480 - add new function for parameter creation
1481 - introduce flags to control the update behaviour of the
1482 BN_BLINDING parameters
1483 - hide BN_BLINDING structure
1484 Add a second BN_BLINDING slot to the RSA structure to improve
1485 performance when a single RSA object is shared among several
1489 *) Add support for DTLS.
1490 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1492 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1493 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1496 *) Remove buggy and incompletet DH cert support from
1497 ssl/ssl_rsa.c and ssl/s3_both.c
1500 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1501 the apps/openssl applications.
1504 *) Compile clean with "-Wall -Wmissing-prototypes
1505 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1506 DEBUG_SAFESTACK must also be set.
1509 *) Change ./Configure so that certain algorithms can be disabled by default.
1510 The new counterpiece to "no-xxx" is "enable-xxx".
1512 The patented RC5 and MDC2 algorithms will now be disabled unless
1513 "enable-rc5" and "enable-mdc2", respectively, are specified.
1515 (IDEA remains enabled despite being patented. This is because IDEA
1516 is frequently required for interoperability, and there is no license
1517 fee for non-commercial use. As before, "no-idea" can be used to
1518 avoid this algorithm.)
1522 *) Add processing of proxy certificates (see RFC 3820). This work was
1523 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1524 EGEE (Enabling Grids for E-science in Europe).
1527 *) RC4 performance overhaul on modern architectures/implementations, such
1528 as Intel P4, IA-64 and AMD64.
1531 *) New utility extract-section.pl. This can be used specify an alternative
1532 section number in a pod file instead of having to treat each file as
1533 a separate case in Makefile. This can be done by adding two lines to the
1536 =for comment openssl_section:XXX
1538 The blank line is mandatory.
1542 *) New arguments -certform, -keyform and -pass for s_client and s_server
1543 to allow alternative format key and certificate files and passphrase
1547 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1548 update associated structures and add various utility functions.
1550 Add new policy related verify parameters, include policy checking in
1551 standard verify code. Enhance 'smime' application with extra parameters
1552 to support policy checking and print out.
1555 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1556 Nehemiah processors. These extensions support AES encryption in hardware
1557 as well as RNG (though RNG support is currently disabled).
1558 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1560 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1563 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1564 [Andy Polyakov and a number of other people]
1566 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1567 implementation contributed by IBM.
1568 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1570 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1571 exponent rather than 'unsigned long'. There is a corresponding change to
1572 the new 'rsa_keygen' element of the RSA_METHOD structure.
1573 [Jelte Jansen, Geoff Thorpe]
1575 *) Functionality for creating the initial serial number file is now
1576 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1578 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1579 number file to 1, which is bound to cause problems. To avoid
1580 the problems while respecting compatibility between different 0.9.7
1581 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1582 CA.pl for serial number initialization. With the new release 0.9.8,
1583 we can fix the problem directly in the 'ca' utility.)
1586 *) Reduced header interdepencies by declaring more opaque objects in
1587 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1588 give fewer recursive includes, which could break lazy source code - so
1589 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1590 developers should define this symbol when building and using openssl to
1591 ensure they track the recommended behaviour, interfaces, [etc], but
1592 backwards-compatible behaviour prevails when this isn't defined.
1595 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1598 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1599 This will generate a random key of the appropriate length based on the
1600 cipher context. The EVP_CIPHER can provide its own random key generation
1601 routine to support keys of a specific form. This is used in the des and
1602 3des routines to generate a key of the correct parity. Update S/MIME
1603 code to use new functions and hence generate correct parity DES keys.
1604 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1605 valid (weak or incorrect parity).
1608 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1609 as looking them up. This is useful when the verified structure may contain
1610 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1611 present unless the new PKCS7_NO_CRL flag is asserted.
1614 *) Extend ASN1 oid configuration module. It now additionally accepts the
1617 shortName = some long name, 1.2.3.4
1620 *) Reimplemented the BN_CTX implementation. There is now no more static
1621 limitation on the number of variables it can handle nor the depth of the
1622 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1623 information can now expand as required, and rather than having a single
1624 static array of bignums, BN_CTX now uses a linked-list of such arrays
1625 allowing it to expand on demand whilst maintaining the usefulness of
1626 BN_CTX's "bundling".
1629 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1630 to allow all RSA operations to function using a single BN_CTX.
1633 *) Preliminary support for certificate policy evaluation and checking. This
1634 is initially intended to pass the tests outlined in "Conformance Testing
1635 of Relying Party Client Certificate Path Processing Logic" v1.07.
1638 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1639 remained unused and not that useful. A variety of other little bignum
1640 tweaks and fixes have also been made continuing on from the audit (see
1644 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1645 associated ASN1, EVP and SSL functions and old ASN1 macros.
1648 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1649 and this should never fail. So the return value from the use of
1650 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1651 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1654 *) BN_CTX_get() should return zero-valued bignums, providing the same
1655 initialised value as BN_new().
1656 [Geoff Thorpe, suggested by Ulf Möller]
1658 *) Support for inhibitAnyPolicy certificate extension.
1661 *) An audit of the BIGNUM code is underway, for which debugging code is
1662 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1663 is considered valid when processing BIGNUMs, and causes execution to
1664 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1665 further steps are taken to deliberately pollute unused data in BIGNUM
1666 structures to try and expose faulty code further on. For now, openssl will
1667 (in its default mode of operation) continue to tolerate the inconsistent
1668 forms that it has tolerated in the past, but authors and packagers should
1669 consider trying openssl and their own applications when compiled with
1670 these debugging symbols defined. It will help highlight potential bugs in
1671 their own code, and will improve the test coverage for OpenSSL itself. At
1672 some point, these tighter rules will become openssl's default to improve
1673 maintainability, though the assert()s and other overheads will remain only
1674 in debugging configurations. See bn.h for more details.
1675 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1677 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1678 that can only be obtained through BN_CTX_new() (which implicitly
1679 initialises it). The presence of this function only made it possible
1680 to overwrite an existing structure (and cause memory leaks).
1683 *) Because of the callback-based approach for implementing LHASH as a
1684 template type, lh_insert() adds opaque objects to hash-tables and
1685 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1686 to clean up those corresponding objects before destroying the hash table
1687 (and losing the object pointers). So some over-zealous constifications in
1688 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1689 objects as "const" and the lh_doall[_arg] callback wrappers are not
1690 prototyped to have "const" restrictions on the object pointers they are
1691 given (and so aren't required to cast them away any more).
1694 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1695 (speed) prefers to use its own implementation. The two implementations
1696 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1697 its object type properly exposed (MS_TM) instead of casting to/from "char
1698 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1699 aren't necessarily the greatest nomenclatures - but this is what was used
1700 internally to the implementation so I've used that for now.
1703 *) Ensure that deprecated functions do not get compiled when
1704 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1705 the self-tests were still using deprecated key-generation functions so
1706 these have been updated also.
1709 *) Reorganise PKCS#7 code to separate the digest location functionality
1710 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1711 New function PKCS7_set_digest() to set the digest type for PKCS#7
1712 digestedData type. Add additional code to correctly generate the
1713 digestedData type and add support for this type in PKCS7 initialization
1717 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1718 structure of type "other".
1721 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1722 sure the loop does correctly stop and breaking ("division by zero")
1723 modulus operations are not performed. The (pre-generated) prime
1724 table crypto/bn/bn_prime.h was already correct, but it could not be
1725 re-generated on some platforms because of the "division by zero"
1726 situation in the script.
1727 [Ralf S. Engelschall]
1729 *) Update support for ECC-based TLS ciphersuites according to
1730 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1731 SHA-1 now is only used for "small" curves (where the
1732 representation of a field element takes up to 24 bytes); for
1733 larger curves, the field element resulting from ECDH is directly
1734 used as premaster secret.
1735 [Douglas Stebila (Sun Microsystems Laboratories)]
1737 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1738 curve secp160r1 to the tests.
1739 [Douglas Stebila (Sun Microsystems Laboratories)]
1741 *) Add the possibility to load symbols globally with DSO.
1742 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1744 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1745 control of the error stack.
1748 *) Add support for STORE in ENGINE.
1751 *) Add the STORE type. The intention is to provide a common interface
1752 to certificate and key stores, be they simple file-based stores, or
1753 HSM-type store, or LDAP stores, or...
1754 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1757 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1758 pass a list of arguments to any function as well as provide a way
1759 for a function to pass data back to the caller.
1762 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1763 works like BUF_strdup() but can be used to duplicate a portion of
1764 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1768 *) Add the function sk_find_ex() which works like sk_find(), but will
1769 return an index to an element even if an exact match couldn't be
1770 found. The index is guaranteed to point at the element where the
1771 searched-for key would be inserted to preserve sorting order.
1774 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1775 takes an extra flags argument for optional functionality. Currently,
1776 the following flags are defined:
1778 OBJ_BSEARCH_VALUE_ON_NOMATCH
1779 This one gets OBJ_bsearch_ex() to return a pointer to the first
1780 element where the comparing function returns a negative or zero
1783 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1784 This one gets OBJ_bsearch_ex() to return a pointer to the first
1785 element where the comparing function returns zero. This is useful
1786 if there are more than one element where the comparing function
1790 *) Make it possible to create self-signed certificates with 'openssl ca'
1791 in such a way that the self-signed certificate becomes part of the
1792 CA database and uses the same mechanisms for serial number generation
1793 as all other certificate signing. The new flag '-selfsign' enables
1794 this functionality. Adapt CA.sh and CA.pl.in.
1797 *) Add functionality to check the public key of a certificate request
1798 against a given private. This is useful to check that a certificate
1799 request can be signed by that key (self-signing).
1802 *) Make it possible to have multiple active certificates with the same
1803 subject in the CA index file. This is done only if the keyword
1804 'unique_subject' is set to 'no' in the main CA section (default
1805 if 'CA_default') of the configuration file. The value is saved
1806 with the database itself in a separate index attribute file,
1807 named like the index file with '.attr' appended to the name.
1810 *) Generate muti valued AVAs using '+' notation in config files for
1814 *) Support for nameConstraints certificate extension.
1817 *) Support for policyConstraints certificate extension.
1820 *) Support for policyMappings certificate extension.
1823 *) Make sure the default DSA_METHOD implementation only uses its
1824 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1825 and change its own handlers to be NULL so as to remove unnecessary
1826 indirection. This lets alternative implementations fallback to the
1827 default implementation more easily.
1830 *) Support for directoryName in GeneralName related extensions
1834 *) Make it possible to link applications using Makefile.shared.
1835 Make that possible even when linking against static libraries!
1838 *) Support for single pass processing for S/MIME signing. This now
1839 means that S/MIME signing can be done from a pipe, in addition
1840 cleartext signing (multipart/signed type) is effectively streaming
1841 and the signed data does not need to be all held in memory.
1843 This is done with a new flag PKCS7_STREAM. When this flag is set
1844 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1845 is done after the data is output (and digests calculated) in
1846 SMIME_write_PKCS7().
1849 *) Add full support for -rpath/-R, both in shared libraries and
1850 applications, at least on the platforms where it's known how
1854 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1855 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1856 will now compute a table of multiples of the generator that
1857 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1858 faster (notably in the case of a single point multiplication,
1859 scalar * generator).
1860 [Nils Larsch, Bodo Moeller]
1862 *) IPv6 support for certificate extensions. The various extensions
1863 which use the IP:a.b.c.d can now take IPv6 addresses using the
1864 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1868 *) Added an ENGINE that implements RSA by performing private key
1869 exponentiations with the GMP library. The conversions to and from
1870 GMP's mpz_t format aren't optimised nor are any montgomery forms
1871 cached, and on x86 it appears OpenSSL's own performance has caught up.
1872 However there are likely to be other architectures where GMP could
1873 provide a boost. This ENGINE is not built in by default, but it can be
1874 specified at Configure time and should be accompanied by the necessary
1875 linker additions, eg;
1876 ./config -DOPENSSL_USE_GMP -lgmp
1879 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1880 testing availability of engines with "-t" - the old behaviour is
1881 produced by increasing the feature's verbosity with "-tt".
1884 *) ECDSA routines: under certain error conditions uninitialized BN objects
1885 could be freed. Solution: make sure initialization is performed early
1886 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1890 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1891 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1892 software implementations. For DSA and DH, parameter generation can
1893 also be overriden by providing the appropriate method callbacks.
1896 *) Change the "progress" mechanism used in key-generation and
1897 primality testing to functions that take a new BN_GENCB pointer in
1898 place of callback/argument pairs. The new API functions have "_ex"
1899 postfixes and the older functions are reimplemented as wrappers for
1900 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1901 declarations of the old functions to help (graceful) attempts to
1902 migrate to the new functions. Also, the new key-generation API
1903 functions operate on a caller-supplied key-structure and return
1904 success/failure rather than returning a key or NULL - this is to
1905 help make "keygen" another member function of RSA_METHOD etc.
1907 Example for using the new callback interface:
1909 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1913 BN_GENCB_set(&my_cb, my_callback, my_arg);
1915 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1916 /* For the meaning of a, b in calls to my_callback(), see the
1917 * documentation of the function that calls the callback.
1918 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1919 * my_callback should return 1 if it wants BN_is_prime_ex()
1920 * to continue, or 0 to stop.
1925 *) Change the ZLIB compression method to be stateful, and make it
1926 available to TLS with the number defined in
1927 draft-ietf-tls-compression-04.txt.
1930 *) Add the ASN.1 structures and functions for CertificatePair, which
1931 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1933 CertificatePair ::= SEQUENCE {
1934 forward [0] Certificate OPTIONAL,
1935 reverse [1] Certificate OPTIONAL,
1936 -- at least one of the pair shall be present -- }
1938 Also implement the PEM functions to read and write certificate
1939 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1941 This needed to be defined, mostly for the sake of the LDAP
1942 attribute crossCertificatePair, but may prove useful elsewhere as
1946 *) Make it possible to inhibit symlinking of shared libraries in
1947 Makefile.shared, for Cygwin's sake.
1950 *) Extend the BIGNUM API by creating a function
1951 void BN_set_negative(BIGNUM *a, int neg);
1952 and a macro that behave like
1953 int BN_is_negative(const BIGNUM *a);
1955 to avoid the need to access 'a->neg' directly in applications.
1958 *) Implement fast modular reduction for pseudo-Mersenne primes
1959 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1960 EC_GROUP_new_curve_GFp() will now automatically use this
1962 [Nils Larsch <nla@trustcenter.de>]
1964 *) Add new lock type (CRYPTO_LOCK_BN).
1967 *) Change the ENGINE framework to automatically load engines
1968 dynamically from specific directories unless they could be
1969 found to already be built in or loaded. Move all the
1970 current engines except for the cryptodev one to a new
1972 The engines in engines/ are built as shared libraries if
1973 the "shared" options was given to ./Configure or ./config.
1974 Otherwise, they are inserted in libcrypto.a.
1975 /usr/local/ssl/engines is the default directory for dynamic
1976 engines, but that can be overriden at configure time through
1977 the usual use of --prefix and/or --openssldir, and at run
1978 time with the environment variable OPENSSL_ENGINES.
1979 [Geoff Thorpe and Richard Levitte]
1981 *) Add Makefile.shared, a helper makefile to build shared
1982 libraries. Addapt Makefile.org.
1985 *) Add version info to Win32 DLLs.
1986 [Peter 'Luna' Runestig" <peter@runestig.com>]
1988 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1989 can be added using this API to created arbitrary PKCS#12
1990 files while avoiding the low level API.
1992 New options to PKCS12_create(), key or cert can be NULL and
1993 will then be omitted from the output file. The encryption
1994 algorithm NIDs can be set to -1 for no encryption, the mac
1995 iteration count can be set to 0 to omit the mac.
1997 Enhance pkcs12 utility by making the -nokeys and -nocerts
1998 options work when creating a PKCS#12 file. New option -nomac
1999 to omit the mac, NONE can be set for an encryption algorithm.
2000 New code is modified to use the enhanced PKCS12_create()
2001 instead of the low level API.
2004 *) Extend ASN1 encoder to support indefinite length constructed
2005 encoding. This can output sequences tags and octet strings in
2006 this form. Modify pk7_asn1.c to support indefinite length
2007 encoding. This is experimental and needs additional code to
2008 be useful, such as an ASN1 bio and some enhanced streaming
2011 Extend template encode functionality so that tagging is passed
2012 down to the template encoder.
2015 *) Let 'openssl req' fail if an argument to '-newkey' is not
2016 recognized instead of using RSA as a default.
2019 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2020 As these are not official, they are not included in "ALL";
2021 the "ECCdraft" ciphersuite group alias can be used to select them.
2022 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2024 *) Add ECDH engine support.
2025 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2027 *) Add ECDH in new directory crypto/ecdh/.
2028 [Douglas Stebila (Sun Microsystems Laboratories)]
2030 *) Let BN_rand_range() abort with an error after 100 iterations
2031 without success (which indicates a broken PRNG).
2034 *) Change BN_mod_sqrt() so that it verifies that the input value
2035 is really the square of the return value. (Previously,
2036 BN_mod_sqrt would show GIGO behaviour.)
2039 *) Add named elliptic curves over binary fields from X9.62, SECG,
2040 and WAP/WTLS; add OIDs that were still missing.
2042 [Sheueling Chang Shantz and Douglas Stebila
2043 (Sun Microsystems Laboratories)]
2045 *) Extend the EC library for elliptic curves over binary fields
2046 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2049 EC_GF2m_simple_method
2053 EC_GROUP_new_curve_GF2m
2054 EC_GROUP_set_curve_GF2m
2055 EC_GROUP_get_curve_GF2m
2056 EC_POINT_set_affine_coordinates_GF2m
2057 EC_POINT_get_affine_coordinates_GF2m
2058 EC_POINT_set_compressed_coordinates_GF2m
2060 Point compression for binary fields is disabled by default for
2061 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2064 As binary polynomials are represented as BIGNUMs, various members
2065 of the EC_GROUP and EC_POINT data structures can be shared
2066 between the implementations for prime fields and binary fields;
2067 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2068 are essentially identical to their ..._GFp counterparts.
2069 (For simplicity, the '..._GFp' prefix has been dropped from
2070 various internal method names.)
2072 An internal 'field_div' method (similar to 'field_mul' and
2073 'field_sqr') has been added; this is used only for binary fields.
2075 [Sheueling Chang Shantz and Douglas Stebila
2076 (Sun Microsystems Laboratories)]
2078 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2079 through methods ('mul', 'precompute_mult').
2081 The generic implementations (now internally called 'ec_wNAF_mul'
2082 and 'ec_wNAF_precomputed_mult') remain the default if these
2083 methods are undefined.
2085 [Sheueling Chang Shantz and Douglas Stebila
2086 (Sun Microsystems Laboratories)]
2088 *) New function EC_GROUP_get_degree, which is defined through
2089 EC_METHOD. For curves over prime fields, this returns the bit
2090 length of the modulus.
2092 [Sheueling Chang Shantz and Douglas Stebila
2093 (Sun Microsystems Laboratories)]
2095 *) New functions EC_GROUP_dup, EC_POINT_dup.
2096 (These simply call ..._new and ..._copy).
2098 [Sheueling Chang Shantz and Douglas Stebila
2099 (Sun Microsystems Laboratories)]
2101 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2102 Polynomials are represented as BIGNUMs (where the sign bit is not
2103 used) in the following functions [macros]:
2106 BN_GF2m_sub [= BN_GF2m_add]
2107 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2108 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2109 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2111 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2112 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2113 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2114 BN_GF2m_cmp [= BN_ucmp]
2116 (Note that only the 'mod' functions are actually for fields GF(2^m).
2117 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2119 For some functions, an the irreducible polynomial defining a
2120 field can be given as an 'unsigned int[]' with strictly
2121 decreasing elements giving the indices of those bits that are set;
2122 i.e., p[] represents the polynomial
2123 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2125 p[0] > p[1] > ... > p[k] = 0.
2126 This applies to the following functions:
2131 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2132 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2134 BN_GF2m_mod_sqrt_arr
2135 BN_GF2m_mod_solve_quad_arr
2139 Conversion can be performed by the following functions:
2144 bntest.c has additional tests for binary polynomial arithmetic.
2146 Two implementations for BN_GF2m_mod_div() are available.
2147 The default algorithm simply uses BN_GF2m_mod_inv() and
2148 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2149 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2150 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2152 [Sheueling Chang Shantz and Douglas Stebila
2153 (Sun Microsystems Laboratories)]
2155 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2156 functionality is disabled at compile-time.
2157 [Douglas Stebila <douglas.stebila@sun.com>]
2159 *) Change default behaviour of 'openssl asn1parse' so that more
2160 information is visible when viewing, e.g., a certificate:
2162 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2163 mode the content of non-printable OCTET STRINGs is output in a
2164 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2165 avoid the appearance of a printable string.
2166 [Nils Larsch <nla@trustcenter.de>]
2168 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2170 EC_GROUP_set_asn1_flag()
2171 EC_GROUP_get_asn1_flag()
2172 EC_GROUP_set_point_conversion_form()
2173 EC_GROUP_get_point_conversion_form()
2174 These control ASN1 encoding details:
2175 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2176 has been set to OPENSSL_EC_NAMED_CURVE.
2177 - Points are encoded in uncompressed form by default; options for
2178 asn1_for are as for point2oct, namely
2179 POINT_CONVERSION_COMPRESSED
2180 POINT_CONVERSION_UNCOMPRESSED
2181 POINT_CONVERSION_HYBRID
2183 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2186 EC_GROUP_get0_seed()
2187 EC_GROUP_get_seed_len()
2188 This is used only for ASN1 purposes (so far).
2189 [Nils Larsch <nla@trustcenter.de>]
2191 *) Add 'field_type' member to EC_METHOD, which holds the NID
2192 of the appropriate field type OID. The new function
2193 EC_METHOD_get_field_type() returns this value.
2194 [Nils Larsch <nla@trustcenter.de>]
2199 EC_POINT_point2hex()
2200 EC_POINT_hex2point()
2201 providing useful interfaces to EC_POINT_point2oct() and
2202 EC_POINT_oct2point().
2203 [Nils Larsch <nla@trustcenter.de>]
2205 *) Change internals of the EC library so that the functions
2206 EC_GROUP_set_generator()
2207 EC_GROUP_get_generator()
2208 EC_GROUP_get_order()
2209 EC_GROUP_get_cofactor()
2210 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2211 to methods, which would lead to unnecessary code duplication when
2212 adding different types of curves.
2213 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2215 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2216 arithmetic, and such that modified wNAFs are generated
2217 (which avoid length expansion in many cases).
2220 *) Add a function EC_GROUP_check_discriminant() (defined via
2221 EC_METHOD) that verifies that the curve discriminant is non-zero.
2223 Add a function EC_GROUP_check() that makes some sanity tests
2224 on a EC_GROUP, its generator and order. This includes
2225 EC_GROUP_check_discriminant().
2226 [Nils Larsch <nla@trustcenter.de>]
2228 *) Add ECDSA in new directory crypto/ecdsa/.
2230 Add applications 'openssl ecparam' and 'openssl ecdsa'
2231 (these are based on 'openssl dsaparam' and 'openssl dsa').
2233 ECDSA support is also included in various other files across the
2234 library. Most notably,
2235 - 'openssl req' now has a '-newkey ecdsa:file' option;
2236 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2237 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2238 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2239 them suitable for ECDSA where domain parameters must be
2240 extracted before the specific public key;
2241 - ECDSA engine support has been added.
2242 [Nils Larsch <nla@trustcenter.de>]
2244 *) Include some named elliptic curves, and add OIDs from X9.62,
2245 SECG, and WAP/WTLS. Each curve can be obtained from the new
2247 EC_GROUP_new_by_curve_name(),
2248 and the list of available named curves can be obtained with
2249 EC_get_builtin_curves().
2250 Also add a 'curve_name' member to EC_GROUP objects, which can be
2252 EC_GROUP_set_curve_name()
2253 EC_GROUP_get_curve_name()
2254 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2256 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2257 was actually never needed) and in BN_mul(). The removal in BN_mul()
2258 required a small change in bn_mul_part_recursive() and the addition
2259 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2260 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2261 bn_sub_words() and bn_add_words() except they take arrays with
2265 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2267 *) In the SSL/TLS server implementation, be strict about session ID
2268 context matching (which matters if an application uses a single
2269 external cache for different purposes). Previously,
2270 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2271 set. This did ensure strict client verification, but meant that,
2272 with applications using a single external cache for quite
2273 different requirements, clients could circumvent ciphersuite
2274 restrictions for a given session ID context by starting a session
2275 in a different context.
2278 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2280 *) Cleanse PEM buffers before freeing them since they may contain
2282 [Benjamin Bennett <ben@psc.edu>]
2284 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2285 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2286 authentication-only ciphersuites.
2289 *) Since AES128 and AES256 share a single mask bit in the logic of
2290 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2291 kludge to work properly if AES128 is available and AES256 isn't.
2294 *) Expand security boundary to match 1.1.1 module.
2297 *) Remove redundant features: hash file source, editing of test vectors
2298 modify fipsld to use external fips_premain.c signature.
2301 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2302 run algorithm test programs.
2305 *) Make algorithm test programs more tolerant of whitespace.
2308 *) Have SSL/TLS server implementation tolerate "mismatched" record
2309 protocol version while receiving ClientHello even if the
2310 ClientHello is fragmented. (The server can't insist on the
2311 particular protocol version it has chosen before the ServerHello
2312 message has informed the client about his choice.)
2315 *) Load error codes if they are not already present instead of using a
2316 static variable. This allows them to be cleanly unloaded and reloaded.
2319 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2321 *) Introduce limits to prevent malicious keys being able to
2322 cause a denial of service. (CVE-2006-2940)
2323 [Steve Henson, Bodo Moeller]
2325 *) Fix ASN.1 parsing of certain invalid structures that can result
2326 in a denial of service. (CVE-2006-2937) [Steve Henson]
2328 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2329 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2331 *) Fix SSL client code which could crash if connecting to a
2332 malicious SSLv2 server. (CVE-2006-4343)
2333 [Tavis Ormandy and Will Drewry, Google Security Team]
2335 *) Change ciphersuite string processing so that an explicit
2336 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2337 will no longer include "AES128-SHA"), and any other similar
2338 ciphersuite (same bitmap) from *other* protocol versions (so that
2339 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2340 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2341 changes from 0.9.8b and 0.9.8d.
2344 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2346 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2347 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2349 *) Change the Unix randomness entropy gathering to use poll() when
2350 possible instead of select(), since the latter has some
2351 undesirable limitations.
2352 [Darryl Miles via Richard Levitte and Bodo Moeller]
2354 *) Disable rogue ciphersuites:
2356 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2357 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2358 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2360 The latter two were purportedly from
2361 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2364 Also deactive the remaining ciphersuites from
2365 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2366 unofficial, and the ID has long expired.
2369 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2370 dual-core machines) and other potential thread-safety issues.
2373 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2375 *) Adapt fipsld and the build system to link against the validated FIPS
2376 module in FIPS mode.
2379 *) Fixes for VC++ 2005 build under Windows.
2382 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2383 from a Windows bash shell such as MSYS. It is autodetected from the
2384 "config" script when run from a VC++ environment. Modify standard VC++
2385 build to use fipscanister.o from the GNU make build.
2388 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2390 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2391 The value now differs depending on if you build for FIPS or not.
2392 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2393 safely run with a non-FIPSed libcrypto, as it may crash because of
2394 the difference induced by this change.
2397 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2399 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2400 (part of SSL_OP_ALL). This option used to disable the
2401 countermeasure against man-in-the-middle protocol-version
2402 rollback in the SSL 2.0 server implementation, which is a bad
2403 idea. (CVE-2005-2969)
2405 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2406 for Information Security, National Institute of Advanced Industrial
2407 Science and Technology [AIST], Japan)]
2409 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2410 mainly for FIPS compliance and not fully integrated at this stage.
2413 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2414 the exponentiation using a fixed-length exponent. (Otherwise,
2415 the information leaked through timing could expose the secret key
2416 after many signatures; cf. Bleichenbacher's attack on DSA with
2420 *) Make a new fixed-window mod_exp implementation the default for
2421 RSA, DSA, and DH private-key operations so that the sequence of
2422 squares and multiplies and the memory access pattern are
2423 independent of the particular secret key. This will mitigate
2424 cache-timing and potential related attacks.
2426 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2427 and this is automatically used by BN_mod_exp_mont() if the new flag
2428 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2429 will use this BN flag for private exponents unless the flag
2430 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2431 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2433 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2435 *) Change the client implementation for SSLv23_method() and
2436 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2437 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2438 (Previously, the SSL 2.0 backwards compatible Client Hello
2439 message format would be used even with SSL_OP_NO_SSLv2.)
2442 *) Add support for smime-type MIME parameter in S/MIME messages which some
2446 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2447 a threadsafe manner. Modify rsa code to use new function and add calls
2448 to dsa and dh code (which had race conditions before).
2451 *) Include the fixed error library code in the C error file definitions
2452 instead of fixing them up at runtime. This keeps the error code
2453 structures constant.
2456 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2458 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2461 *) Fixes for newer kerberos headers. NB: the casts are needed because
2462 the 'length' field is signed on one version and unsigned on another
2463 with no (?) obvious way to tell the difference, without these VC++
2464 complains. Also the "definition" of FAR (blank) is no longer included
2465 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2466 some needed definitions.
2469 *) Undo Cygwin change.
2472 *) Added support for proxy certificates according to RFC 3820.
2473 Because they may be a security thread to unaware applications,
2474 they must be explicitely allowed in run-time. See
2475 docs/HOWTO/proxy_certificates.txt for further information.
2478 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2480 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2481 server and client random values. Previously
2482 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2483 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2485 This change has negligible security impact because:
2487 1. Server and client random values still have 24 bytes of pseudo random
2490 2. Server and client random values are sent in the clear in the initial
2493 3. The master secret is derived using the premaster secret (48 bytes in
2494 size for static RSA ciphersuites) as well as client server and random
2497 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2500 [Stephen Henson, reported by UK NISCC]
2502 *) Use Windows randomness collection on Cygwin.
2505 *) Fix hang in EGD/PRNGD query when communication socket is closed
2506 prematurely by EGD/PRNGD.
2507 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2509 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2512 *) Back-port of selected performance improvements from development
2513 branch, as well as improved support for PowerPC platforms.
2516 *) Add lots of checks for memory allocation failure, error codes to indicate
2517 failure and freeing up memory if a failure occurs.
2518 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2520 *) Add new -passin argument to dgst.
2523 *) Perform some character comparisons of different types in X509_NAME_cmp:
2524 this is needed for some certificates that reencode DNs into UTF8Strings
2525 (in violation of RFC3280) and can't or wont issue name rollover
2529 *) Make an explicit check during certificate validation to see that
2530 the CA setting in each certificate on the chain is correct. As a
2531 side effect always do the following basic checks on extensions,
2532 not just when there's an associated purpose to the check:
2534 - if there is an unhandled critical extension (unless the user
2535 has chosen to ignore this fault)
2536 - if the path length has been exceeded (if one is set at all)
2537 - that certain extensions fit the associated purpose (if one has
2541 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2543 *) Avoid a race condition when CRLs are checked in a multi threaded
2544 environment. This would happen due to the reordering of the revoked
2545 entries during signature checking and serial number lookup. Now the
2546 encoding is cached and the serial number sort performed under a lock.
2547 Add new STACK function sk_is_sorted().
2550 *) Add Delta CRL to the extension code.
2553 *) Various fixes to s3_pkt.c so alerts are sent properly.
2554 [David Holmes <d.holmes@f5.com>]
2556 *) Reduce the chances of duplicate issuer name and serial numbers (in
2557 violation of RFC3280) using the OpenSSL certificate creation utilities.
2558 This is done by creating a random 64 bit value for the initial serial
2559 number when a serial number file is created or when a self signed
2560 certificate is created using 'openssl req -x509'. The initial serial
2561 number file is created using 'openssl x509 -next_serial' in CA.pl
2562 rather than being initialized to 1.
2565 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2567 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2568 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2569 [Joe Orton, Steve Henson]
2571 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2573 [Joe Orton, Steve Henson]
2575 *) Make it possible to have multiple active certificates with the same
2576 subject in the CA index file. This is done only if the keyword
2577 'unique_subject' is set to 'no' in the main CA section (default
2578 if 'CA_default') of the configuration file. The value is saved
2579 with the database itself in a separate index attribute file,
2580 named like the index file with '.attr' appended to the name.
2583 *) X509 verify fixes. Disable broken certificate workarounds when
2584 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2585 keyUsage extension present. Don't accept CRLs with unhandled critical
2586 extensions: since verify currently doesn't process CRL extensions this
2587 rejects a CRL with *any* critical extensions. Add new verify error codes
2591 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2592 A clarification of RFC2560 will require the use of OCTET STRINGs and
2593 some implementations cannot handle the current raw format. Since OpenSSL
2594 copies and compares OCSP nonces as opaque blobs without any attempt at
2595 parsing them this should not create any compatibility issues.
2598 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2599 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2600 this HMAC (and other) operations are several times slower than OpenSSL
2604 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2605 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2607 *) Use the correct content when signing type "other".
2610 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2612 *) Fix various bugs revealed by running the NISCC test suite:
2614 Stop out of bounds reads in the ASN1 code when presented with
2615 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2617 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2619 If verify callback ignores invalid public key errors don't try to check
2620 certificate signature with the NULL public key.
2624 *) New -ignore_err option in ocsp application to stop the server
2625 exiting on the first error in a request.
2628 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2629 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2633 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2634 extra data after the compression methods not only for TLS 1.0
2635 but also for SSL 3.0 (as required by the specification).
2636 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2638 *) Change X509_certificate_type() to mark the key as exported/exportable
2639 when it's 512 *bits* long, not 512 bytes.
2642 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2643 blocks during encryption.
2646 *) Various fixes to base64 BIO and non blocking I/O. On write
2647 flushes were not handled properly if the BIO retried. On read
2648 data was not being buffered properly and had various logic bugs.
2649 This also affects blocking I/O when the data being decoded is a
2653 *) Various S/MIME bugfixes and compatibility changes:
2654 output correct application/pkcs7 MIME type if
2655 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2656 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2657 of files as .eml work). Correctly handle very long lines in MIME
2661 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2663 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2664 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2665 a protocol version number mismatch like a decryption error
2666 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2669 *) Turn on RSA blinding by default in the default implementation
2670 to avoid a timing attack. Applications that don't want it can call
2671 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2672 They would be ill-advised to do so in most cases.
2673 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2675 *) Change RSA blinding code so that it works when the PRNG is not
2676 seeded (in this case, the secret RSA exponent is abused as
2677 an unpredictable seed -- if it is not unpredictable, there
2678 is no point in blinding anyway). Make RSA blinding thread-safe
2679 by remembering the creator's thread ID in rsa->blinding and
2680 having all other threads use local one-time blinding factors
2681 (this requires more computation than sharing rsa->blinding, but
2682 avoids excessive locking; and if an RSA object is not shared
2683 between threads, blinding will still be very fast).
2686 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2687 ENGINE as defaults for all supported algorithms irrespective of
2688 the 'flags' parameter. 'flags' is now honoured, so applications
2689 should make sure they are passing it correctly.
2692 *) Target "mingw" now allows native Windows code to be generated in
2693 the Cygwin environment as well as with the MinGW compiler.
2696 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2698 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2699 via timing by performing a MAC computation even if incorrrect
2700 block cipher padding has been found. This is a countermeasure
2701 against active attacks where the attacker has to distinguish
2702 between bad padding and a MAC verification error. (CVE-2003-0078)
2704 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2705 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2706 Martin Vuagnoux (EPFL, Ilion)]
2708 *) Make the no-err option work as intended. The intention with no-err
2709 is not to have the whole error stack handling routines removed from
2710 libcrypto, it's only intended to remove all the function name and
2711 reason texts, thereby removing some of the footprint that may not
2712 be interesting if those errors aren't displayed anyway.
2714 NOTE: it's still possible for any application or module to have it's
2715 own set of error texts inserted. The routines are there, just not
2716 used by default when no-err is given.
2719 *) Add support for FreeBSD on IA64.
2720 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2722 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2723 Kerberos function mit_des_cbc_cksum(). Before this change,
2724 the value returned by DES_cbc_cksum() was like the one from
2725 mit_des_cbc_cksum(), except the bytes were swapped.
2726 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2728 *) Allow an application to disable the automatic SSL chain building.
2729 Before this a rather primitive chain build was always performed in
2730 ssl3_output_cert_chain(): an application had no way to send the
2731 correct chain if the automatic operation produced an incorrect result.
2733 Now the chain builder is disabled if either:
2735 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2737 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2739 The reasoning behind this is that an application would not want the
2740 auto chain building to take place if extra chain certificates are
2741 present and it might also want a means of sending no additional
2742 certificates (for example the chain has two certificates and the
2746 *) Add the possibility to build without the ENGINE framework.
2747 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2749 *) Under Win32 gmtime() can return NULL: check return value in
2750 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2753 *) DSA routines: under certain error conditions uninitialized BN objects
2754 could be freed. Solution: make sure initialization is performed early
2755 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2756 Nils Larsch <nla@trustcenter.de> via PR#459)
2759 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2760 checked on reconnect on the client side, therefore session resumption
2761 could still fail with a "ssl session id is different" error. This
2762 behaviour is masked when SSL_OP_ALL is used due to
2763 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2764 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2765 followup to PR #377.
2768 *) IA-32 assembler support enhancements: unified ELF targets, support
2769 for SCO/Caldera platforms, fix for Cygwin shared build.
2772 *) Add support for FreeBSD on sparc64. As a consequence, support for
2773 FreeBSD on non-x86 processors is separate from x86 processors on
2774 the config script, much like the NetBSD support.
2775 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2777 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2779 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2782 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2783 code (06) was taken as the first octet of the session ID and the last
2784 octet was ignored consequently. As a result SSLv2 client side session
2785 caching could not have worked due to the session ID mismatch between
2787 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2791 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2792 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2796 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2797 seems that in spite of existing for more than a year, many application
2798 author have done nothing to provide the necessary callbacks, which
2799 means that this particular engine will not work properly anywhere.
2800 This is a very unfortunate situation which forces us, in the name
2801 of usability, to give the hw_ncipher.c a static lock, which is part
2803 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2804 appear in 0.9.8 or later. We EXPECT application authors to have
2805 dealt properly with this when 0.9.8 is released (unless we actually
2806 make such changes in the libcrypto locking code that changes will
2807 have to be made anyway).
2810 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2811 octets have been read, EOF or an error occurs. Without this change
2812 some truncated ASN1 structures will not produce an error.
2815 *) Disable Heimdal support, since it hasn't been fully implemented.
2816 Still give the possibility to force the use of Heimdal, but with
2817 warnings and a request that patches get sent to openssl-dev.
2820 *) Add the VC-CE target, introduce the WINCE sysname, and add
2821 INSTALL.WCE and appropriate conditionals to make it build.
2822 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2824 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2825 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2826 edit numbers of the version.
2827 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2829 *) Introduce safe string copy and catenation functions
2830 (BUF_strlcpy() and BUF_strlcat()).
2831 [Ben Laurie (CHATS) and Richard Levitte]
2833 *) Avoid using fixed-size buffers for one-line DNs.
2834 [Ben Laurie (CHATS)]
2836 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2837 resizing buffers containing secrets, and use where appropriate.
2838 [Ben Laurie (CHATS)]
2840 *) Avoid using fixed size buffers for configuration file location.
2841 [Ben Laurie (CHATS)]
2843 *) Avoid filename truncation for various CA files.
2844 [Ben Laurie (CHATS)]
2846 *) Use sizeof in preference to magic numbers.
2847 [Ben Laurie (CHATS)]
2849 *) Avoid filename truncation in cert requests.
2850 [Ben Laurie (CHATS)]
2852 *) Add assertions to check for (supposedly impossible) buffer
2854 [Ben Laurie (CHATS)]
2856 *) Don't cache truncated DNS entries in the local cache (this could
2857 potentially lead to a spoofing attack).
2858 [Ben Laurie (CHATS)]
2860 *) Fix various buffers to be large enough for hex/decimal
2861 representations in a platform independent manner.
2862 [Ben Laurie (CHATS)]
2864 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2865 resizing buffers containing secrets, and use where appropriate.
2866 [Ben Laurie (CHATS)]
2868 *) Add BIO_indent() to avoid much slightly worrying code to do
2870 [Ben Laurie (CHATS)]
2872 *) Convert sprintf()/BIO_puts() to BIO_printf().
2873 [Ben Laurie (CHATS)]
2875 *) buffer_gets() could terminate with the buffer only half
2877 [Ben Laurie (CHATS)]
2879 *) Add assertions to prevent user-supplied crypto functions from
2880 overflowing internal buffers by having large block sizes, etc.
2881 [Ben Laurie (CHATS)]
2883 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2885 [Ben Laurie (CHATS)]
2887 *) Eliminate unused copy of key in RC4.
2888 [Ben Laurie (CHATS)]
2890 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2891 [Ben Laurie (CHATS)]
2893 *) Fix off-by-one error in EGD path.
2894 [Ben Laurie (CHATS)]
2896 *) If RANDFILE path is too long, ignore instead of truncating.
2897 [Ben Laurie (CHATS)]
2899 *) Eliminate unused and incorrectly sized X.509 structure
2901 [Ben Laurie (CHATS)]
2903 *) Eliminate unused and dangerous function knumber().
2904 [Ben Laurie (CHATS)]
2906 *) Eliminate unused and dangerous structure, KSSL_ERR.
2907 [Ben Laurie (CHATS)]
2909 *) Protect against overlong session ID context length in an encoded
2910 session object. Since these are local, this does not appear to be
2912 [Ben Laurie (CHATS)]
2914 *) Change from security patch (see 0.9.6e below) that did not affect
2915 the 0.9.6 release series:
2917 Remote buffer overflow in SSL3 protocol - an attacker could
2918 supply an oversized master key in Kerberos-enabled versions.
2920 [Ben Laurie (CHATS)]
2922 *) Change the SSL kerb5 codes to match RFC 2712.
2925 *) Make -nameopt work fully for req and add -reqopt switch.
2926 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2928 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2929 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2931 *) Make sure tests can be performed even if the corresponding algorithms
2932 have been removed entirely. This was also the last step to make
2933 OpenSSL compilable with DJGPP under all reasonable conditions.
2934 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2936 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2937 to allow version independent disabling of normally unselected ciphers,
2938 which may be activated as a side-effect of selecting a single cipher.
2940 (E.g., cipher list string "RSA" enables ciphersuites that are left
2941 out of "ALL" because they do not provide symmetric encryption.
2942 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2943 [Lutz Jaenicke, Bodo Moeller]
2945 *) Add appropriate support for separate platform-dependent build
2946 directories. The recommended way to make a platform-dependent
2947 build directory is the following (tested on Linux), maybe with
2950 # Place yourself outside of the OpenSSL source tree. In
2951 # this example, the environment variable OPENSSL_SOURCE
2952 # is assumed to contain the absolute OpenSSL source directory.
2953 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2954 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2955 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2956 mkdir -p `dirname $F`
2957 ln -s $OPENSSL_SOURCE/$F $F
2960 To be absolutely sure not to disturb the source tree, a "make clean"
2961 is a good thing. If it isn't successfull, don't worry about it,
2962 it probably means the source directory is very clean.
2965 *) Make sure any ENGINE control commands make local copies of string
2966 pointers passed to them whenever necessary. Otherwise it is possible
2967 the caller may have overwritten (or deallocated) the original string
2968 data when a later ENGINE operation tries to use the stored values.
2969 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2971 *) Improve diagnostics in file reading and command-line digests.
2972 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2974 *) Add AES modes CFB and OFB to the object database. Correct an
2975 error in AES-CFB decryption.
2978 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2979 allows existing EVP_CIPHER_CTX structures to be reused after
2980 calling EVP_*Final(). This behaviour is used by encryption
2981 BIOs and some applications. This has the side effect that
2982 applications must explicitly clean up cipher contexts with
2983 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2986 *) Check the values of dna and dnb in bn_mul_recursive before calling
2987 bn_mul_comba (a non zero value means the a or b arrays do not contain
2988 n2 elements) and fallback to bn_mul_normal if either is not zero.
2991 *) Fix escaping of non-ASCII characters when using the -subj option
2992 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2995 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2996 form for "surname", serialNumber has no short form.
2997 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2998 therefore remove "mail" short name for "internet 7".
2999 The OID for unique identifiers in X509 certificates is
3000 x500UniqueIdentifier, not uniqueIdentifier.
3001 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3004 *) Add an "init" command to the ENGINE config module and auto initialize
3005 ENGINEs. Without any "init" command the ENGINE will be initialized
3006 after all ctrl commands have been executed on it. If init=1 the
3007 ENGINE is initailized at that point (ctrls before that point are run
3008 on the uninitialized ENGINE and after on the initialized one). If
3009 init=0 then the ENGINE will not be iniatialized at all.
3012 *) Fix the 'app_verify_callback' interface so that the user-defined
3013 argument is actually passed to the callback: In the
3014 SSL_CTX_set_cert_verify_callback() prototype, the callback
3015 declaration has been changed from
3018 int (*cb)(X509_STORE_CTX *,void *);
3019 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3020 i=s->ctx->app_verify_callback(&ctx)
3021 has been changed into
3022 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3024 To update applications using SSL_CTX_set_cert_verify_callback(),
3025 a dummy argument can be added to their callback functions.
3026 [D. K. Smetters <smetters@parc.xerox.com>]
3028 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3029 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3031 *) Add and OPENSSL_LOAD_CONF define which will cause
3032 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3033 This allows older applications to transparently support certain
3034 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3035 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3036 load the config file and OPENSSL_add_all_algorithms_conf() which will
3037 always load it have also been added.
3040 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3041 Adjust NIDs and EVP layer.
3042 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3044 *) Config modules support in openssl utility.
3046 Most commands now load modules from the config file,
3047 though in a few (such as version) this isn't done
3048 because it couldn't be used for anything.
3050 In the case of ca and req the config file used is
3051 the same as the utility itself: that is the -config
3052 command line option can be used to specify an
3056 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3057 use "openssl_conf" if filename is NULL use default openssl config file.
3060 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3061 config section name. Add a new flag to tolerate a missing config file
3062 and move code to CONF_modules_load_file().
3065 *) Support for crypto accelerator cards from Accelerated Encryption
3066 Processing, www.aep.ie. (Use engine 'aep')
3067 The support was copied from 0.9.6c [engine] and adapted/corrected
3068 to work with the new engine framework.
3069 [AEP Inc. and Richard Levitte]
3071 *) Support for SureWare crypto accelerator cards from Baltimore
3072 Technologies. (Use engine 'sureware')
3073 The support was copied from 0.9.6c [engine] and adapted
3074 to work with the new engine framework.
3077 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3078 make the newer ENGINE framework commands for the CHIL engine work.
3079 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3081 *) Make it possible to produce shared libraries on ReliantUNIX.
3082 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3084 *) Add the configuration target debug-linux-ppro.
3085 Make 'openssl rsa' use the general key loading routines
3086 implemented in apps.c, and make those routines able to
3087 handle the key format FORMAT_NETSCAPE and the variant
3089 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3091 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3092 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3094 *) Add -keyform to rsautl, and document -engine.
3095 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3097 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3098 BIO_R_NO_SUCH_FILE error code rather than the generic
3099 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3102 *) Add new functions
3104 ERR_peek_last_error_line
3105 ERR_peek_last_error_line_data.
3106 These are similar to
3109 ERR_peek_error_line_data,
3110 but report on the latest error recorded rather than the first one
3111 still in the error queue.
3112 [Ben Laurie, Bodo Moeller]
3114 *) default_algorithms option in ENGINE config module. This allows things
3116 default_algorithms = ALL
3117 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3120 *) Prelminary ENGINE config module.
3123 *) New experimental application configuration code.
3126 *) Change the AES code to follow the same name structure as all other
3127 symmetric ciphers, and behave the same way. Move everything to
3128 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3129 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3131 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3132 [Ben Laurie and Theo de Raadt]
3134 *) Add option to output public keys in req command.
3135 [Massimiliano Pala madwolf@openca.org]
3137 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3138 (up to about 10% better than before for P-192 and P-224).
3141 *) New functions/macros
3143 SSL_CTX_set_msg_callback(ctx, cb)
3144 SSL_CTX_set_msg_callback_arg(ctx, arg)
3145 SSL_set_msg_callback(ssl, cb)
3146 SSL_set_msg_callback_arg(ssl, arg)
3148 to request calling a callback function
3150 void cb(int write_p, int version, int content_type,
3151 const void *buf, size_t len, SSL *ssl, void *arg)
3153 whenever a protocol message has been completely received
3154 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3155 protocol version according to which the SSL library interprets
3156 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3157 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3158 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3159 specification (change_cipher_spec(20), alert(21), handshake(22)).
3160 'buf' and 'len' point to the actual message, 'ssl' to the
3161 SSL object, and 'arg' is the application-defined value set by
3162 SSL[_CTX]_set_msg_callback_arg().
3164 'openssl s_client' and 'openssl s_server' have new '-msg' options
3165 to enable a callback that displays all protocol messages.
3168 *) Change the shared library support so shared libraries are built as
3169 soon as the corresponding static library is finished, and thereby get
3170 openssl and the test programs linked against the shared library.
3171 This still only happens when the keyword "shard" has been given to
3172 the configuration scripts.
3174 NOTE: shared library support is still an experimental thing, and
3175 backward binary compatibility is still not guaranteed.
3176 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3178 *) Add support for Subject Information Access extension.
3179 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3181 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3182 additional bytes when new memory had to be allocated, not just
3183 when reusing an existing buffer.
3186 *) New command line and configuration option 'utf8' for the req command.
3187 This allows field values to be specified as UTF8 strings.
3190 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3191 runs for the former and machine-readable output for the latter.
3194 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3195 of the e-mail address in the DN (i.e., it will go into a certificate
3196 extension only). The new configuration file option 'email_in_dn = no'
3197 has the same effect.
3198 [Massimiliano Pala madwolf@openca.org]
3200 *) Change all functions with names starting with des_ to be starting
3201 with DES_ instead. Add wrappers that are compatible with libdes,
3202 but are named _ossl_old_des_*. Finally, add macros that map the
3203 des_* symbols to the corresponding _ossl_old_des_* if libdes
3204 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3205 desired, the des_* symbols will be mapped to DES_*, with one
3208 Since we provide two compatibility mappings, the user needs to
3209 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3210 compatibility is desired. The default (i.e., when that macro
3211 isn't defined) is OpenSSL 0.9.6c compatibility.
3213 There are also macros that enable and disable the support of old
3214 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3215 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3216 are defined, the default will apply: to support the old des routines.
3218 In either case, one must include openssl/des.h to get the correct
3219 definitions. Do not try to just include openssl/des_old.h, that
3222 NOTE: This is a major break of an old API into a new one. Software
3223 authors are encouraged to switch to the DES_ style functions. Some
3224 time in the future, des_old.h and the libdes compatibility functions
3225 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3226 default), and then completely removed.
3229 *) Test for certificates which contain unsupported critical extensions.
3230 If such a certificate is found during a verify operation it is
3231 rejected by default: this behaviour can be overridden by either
3232 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3233 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3234 X509_supported_extension() has also been added which returns 1 if a
3235 particular extension is supported.
3238 *) Modify the behaviour of EVP cipher functions in similar way to digests
3239 to retain compatibility with existing code.
3242 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3243 compatibility with existing code. In particular the 'ctx' parameter does
3244 not have to be to be initialized before the call to EVP_DigestInit() and
3245 it is tidied up after a call to EVP_DigestFinal(). New function
3246 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3247 EVP_MD_CTX_copy() changed to not require the destination to be
3248 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3249 requires the destination to be valid.
3251 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3252 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3255 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3256 so that complete 'Handshake' protocol structures are kept in memory
3257 instead of overwriting 'msg_type' and 'length' with 'body' data.
3260 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3261 [Massimo Santin via Richard Levitte]
3263 *) Major restructuring to the underlying ENGINE code. This includes
3264 reduction of linker bloat, separation of pure "ENGINE" manipulation
3265 (initialisation, etc) from functionality dealing with implementations
3266 of specific crypto iterfaces. This change also introduces integrated
3267 support for symmetric ciphers and digest implementations - so ENGINEs
3268 can now accelerate these by providing EVP_CIPHER and EVP_MD
3269 implementations of their own. This is detailed in crypto/engine/README
3270 as it couldn't be adequately described here. However, there are a few
3271 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3272 were changed in the original introduction of ENGINE code have now
3273 reverted back - the hooking from this code to ENGINE is now a good
3274 deal more passive and at run-time, operations deal directly with
3275 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3276 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3277 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3278 they were not being used by the framework as there is no concept of a
3279 BIGNUM_METHOD and they could not be generalised to the new
3280 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3281 ENGINE_cpy() has been removed as it cannot be consistently defined in
3285 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3288 *) Change mkdef.pl to sort symbols that get the same entry number,
3289 and make sure the automatically generated functions ERR_load_*
3290 become part of libeay.num as well.
3293 *) New function SSL_renegotiate_pending(). This returns true once
3294 renegotiation has been requested (either SSL_renegotiate() call
3295 or HelloRequest/ClientHello receveived from the peer) and becomes
3296 false once a handshake has been completed.
3297 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3298 sends a HelloRequest, but does not ensure that a handshake takes
3299 place. SSL_renegotiate_pending() is useful for checking if the
3300 client has followed the request.)
3303 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3304 By default, clients may request session resumption even during
3305 renegotiation (if session ID contexts permit); with this option,
3306 session resumption is possible only in the first handshake.
3308 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3309 more bits available for options that should not be part of
3310 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3313 *) Add some demos for certificate and certificate request creation.
3316 *) Make maximum certificate chain size accepted from the peer application
3317 settable (SSL*_get/set_max_cert_list()), as proposed by
3318 "Douglas E. Engert" <deengert@anl.gov>.
3321 *) Add support for shared libraries for Unixware-7
3322 (Boyd Lynn Gerber <gerberb@zenez.com>).
3325 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3326 be done prior to destruction. Use this to unload error strings from
3327 ENGINEs that load their own error strings. NB: This adds two new API
3328 functions to "get" and "set" this destroy handler in an ENGINE.
3331 *) Alter all existing ENGINE implementations (except "openssl" and
3332 "openbsd") to dynamically instantiate their own error strings. This
3333 makes them more flexible to be built both as statically-linked ENGINEs
3334 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3335 Also, add stub code to each that makes building them as self-contained
3336 shared-libraries easier (see README.ENGINE).
3339 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3340 implementations into applications that are completely implemented in
3341 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3342 commands that can be used to configure what shared-library to load and
3343 to control aspects of the way it is handled. Also, made an update to
3344 the README.ENGINE file that brings its information up-to-date and
3345 provides some information and instructions on the "dynamic" ENGINE
3346 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3349 *) Make it possible to unload ranges of ERR strings with a new
3350 "ERR_unload_strings" function.
3353 *) Add a copy() function to EVP_MD.
3356 *) Make EVP_MD routines take a context pointer instead of just the
3357 md_data void pointer.
3360 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3361 that the digest can only process a single chunk of data
3362 (typically because it is provided by a piece of
3363 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3364 is only going to provide a single chunk of data, and hence the
3365 framework needn't accumulate the data for oneshot drivers.
3368 *) As with "ERR", make it possible to replace the underlying "ex_data"
3369 functions. This change also alters the storage and management of global
3370 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3371 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3372 index counters. The API functions that use this state have been changed
3373 to take a "class_index" rather than pointers to the class's local STACK
3374 and counter, and there is now an API function to dynamically create new
3375 classes. This centralisation allows us to (a) plug a lot of the
3376 thread-safety problems that existed, and (b) makes it possible to clean
3377 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3378 such data would previously have always leaked in application code and
3379 workarounds were in place to make the memory debugging turn a blind eye
3380 to it. Application code that doesn't use this new function will still
3381 leak as before, but their memory debugging output will announce it now
3382 rather than letting it slide.
3384 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3385 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3386 has a return value to indicate success or failure.
3389 *) Make it possible to replace the underlying "ERR" functions such that the
3390 global state (2 LHASH tables and 2 locks) is only used by the "default"
3391 implementation. This change also adds two functions to "get" and "set"
3392 the implementation prior to it being automatically set the first time
3393 any other ERR function takes place. Ie. an application can call "get",
3394 pass the return value to a module it has just loaded, and that module
3395 can call its own "set" function using that value. This means the
3396 module's "ERR" operations will use (and modify) the error state in the
3397 application and not in its own statically linked copy of OpenSSL code.
3400 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3401 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3402 the operation, and provides a more encapsulated way for external code
3403 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3404 to use these functions rather than manually incrementing the counts.
3406 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3409 *) Add EVP test program.
3412 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3415 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3416 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3417 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3418 These allow a CRL to be built without having to access X509_CRL fields
3419 directly. Modify 'ca' application to use new functions.
3422 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3423 bug workarounds. Rollback attack detection is a security feature.
3424 The problem will only arise on OpenSSL servers when TLSv1 is not
3425 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3426 Software authors not wanting to support TLSv1 will have special reasons
3427 for their choice and can explicitly enable this option.
3428 [Bodo Moeller, Lutz Jaenicke]
3430 *) Rationalise EVP so it can be extended: don't include a union of
3431 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3432 (similar to those existing for EVP_CIPHER_CTX).
3437 EVP_MD_CTX_init(&md); /* new function call */
3438 EVP_DigestInit(&md, EVP_sha1());
3439 EVP_DigestUpdate(&md, in, len);
3440 EVP_DigestFinal(&md, out, NULL);
3441 EVP_MD_CTX_cleanup(&md); /* new function call */
3445 *) Make DES key schedule conform to the usual scheme, as well as
3446 correcting its structure. This means that calls to DES functions
3447 now have to pass a pointer to a des_key_schedule instead of a
3448 plain des_key_schedule (which was actually always a pointer
3451 des_key_schedule ks;
3453 des_set_key_checked(..., &ks);
3454 des_ncbc_encrypt(..., &ks, ...);
3456 (Note that a later change renames 'des_...' into 'DES_...'.)
3459 *) Initial reduction of linker bloat: the use of some functions, such as
3460 PEM causes large amounts of unused functions to be linked in due to
3461 poor organisation. For example pem_all.c contains every PEM function
3462 which has a knock on effect of linking in large amounts of (unused)
3463 ASN1 code. Grouping together similar functions and splitting unrelated
3464 functions prevents this.
3467 *) Cleanup of EVP macros.
3470 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3471 correct _ecb suffix.
3474 *) Add initial OCSP responder support to ocsp application. The
3475 revocation information is handled using the text based index
3476 use by the ca application. The responder can either handle
3477 requests generated internally, supplied in files (for example
3478 via a CGI script) or using an internal minimal server.
3481 *) Add configuration choices to get zlib compression for TLS.
3484 *) Changes to Kerberos SSL for RFC 2712 compliance:
3485 1. Implemented real KerberosWrapper, instead of just using
3486 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3487 2. Implemented optional authenticator field of KerberosWrapper.
3489 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3490 and authenticator structs; see crypto/krb5/.
3492 Generalized Kerberos calls to support multiple Kerberos libraries.
3493 [Vern Staats <staatsvr@asc.hpc.mil>,
3494 Jeffrey Altman <jaltman@columbia.edu>
3495 via Richard Levitte]
3497 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3498 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3499 values for each of the key sizes rather than having just
3500 parameters (and 'speed' generating keys each time).
3503 *) Speed up EVP routines.
3506 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3507 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3508 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3509 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3511 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3512 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3513 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3516 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3518 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3521 *) Added the OS2-EMX target.
3522 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3524 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3525 to support NCONF routines in extension code. New function CONF_set_nconf()
3526 to allow functions which take an NCONF to also handle the old LHASH
3527 structure: this means that the old CONF compatible routines can be
3528 retained (in particular wrt extensions) without having to duplicate the
3529 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3532 *) Enhance the general user interface with mechanisms for inner control
3533 and with possibilities to have yes/no kind of prompts.
3536 *) Change all calls to low level digest routines in the library and
3537 applications to use EVP. Add missing calls to HMAC_cleanup() and
3538 don't assume HMAC_CTX can be copied using memcpy().
3539 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3541 *) Add the possibility to control engines through control names but with
3542 arbitrary arguments instead of just a string.
3543 Change the key loaders to take a UI_METHOD instead of a callback
3544 function pointer. NOTE: this breaks binary compatibility with earlier
3545 versions of OpenSSL [engine].
3546 Adapt the nCipher code for these new conditions and add a card insertion
3550 *) Enhance the general user interface with mechanisms to better support
3551 dialog box interfaces, application-defined prompts, the possibility
3552 to use defaults (for example default passwords from somewhere else)
3553 and interrupts/cancellations.
3556 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3557 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3560 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3561 tidy up some unnecessarily weird code in 'sk_new()').
3562 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3564 *) Change the key loading routines for ENGINEs to use the same kind
3565 callback (pem_password_cb) as all other routines that need this
3569 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3570 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3571 than this minimum value is recommended.
3574 *) New random seeder for OpenVMS, using the system process statistics
3575 that are easily reachable.
3578 *) Windows apparently can't transparently handle global
3579 variables defined in DLLs. Initialisations such as:
3581 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3583 wont compile. This is used by the any applications that need to
3584 declare their own ASN1 modules. This was fixed by adding the option
3585 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3586 needed for static libraries under Win32.
3589 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3590 setting of purpose and trust fields. New X509_STORE trust and
3591 purpose functions and tidy up setting in other SSL functions.
3594 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3595 structure. These are inherited by X509_STORE_CTX when it is
3596 initialised. This allows various defaults to be set in the
3597 X509_STORE structure (such as flags for CRL checking and custom
3598 purpose or trust settings) for functions which only use X509_STORE_CTX
3599 internally such as S/MIME.
3601 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3602 trust settings if they are not set in X509_STORE. This allows X509_STORE
3603 purposes and trust (in S/MIME for example) to override any set by default.
3605 Add command line options for CRL checking to smime, s_client and s_server
3609 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3610 are set then the CRL is looked up in the X509_STORE structure and
3611 its validity and signature checked, then if the certificate is found
3612 in the CRL the verify fails with a revoked error.
3614 Various new CRL related callbacks added to X509_STORE_CTX structure.
3616 Command line options added to 'verify' application to support this.
3618 This needs some additional work, such as being able to handle multiple
3619 CRLs with different times, extension based lookup (rather than just
3620 by subject name) and ultimately more complete V2 CRL extension
3624 *) Add a general user interface API (crypto/ui/). This is designed
3625 to replace things like des_read_password and friends (backward
3626 compatibility functions using this new API are provided).
3627 The purpose is to remove prompting functions from the DES code
3628 section as well as provide for prompting through dialog boxes in
3629 a window system and the like.
3632 *) Add "ex_data" support to ENGINE so implementations can add state at a
3633 per-structure level rather than having to store it globally.
3636 *) Make it possible for ENGINE structures to be copied when retrieved by
3637 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3638 This causes the "original" ENGINE structure to act like a template,
3639 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3640 operational state can be localised to each ENGINE structure, despite the
3641 fact they all share the same "methods". New ENGINE structures returned in
3642 this case have no functional references and the return value is the single
3643 structural reference. This matches the single structural reference returned
3644 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3648 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3649 needs to match any other type at all we need to manually clear the
3653 *) Changes to the "openssl engine" utility to include;
3654 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3655 about an ENGINE's available control commands.
3656 - executing control commands from command line arguments using the
3657 '-pre' and '-post' switches. '-post' is only used if '-t' is
3658 specified and the ENGINE is successfully initialised. The syntax for
3659 the individual commands are colon-separated, for example;
3660 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3663 *) New dynamic control command support for ENGINEs. ENGINEs can now
3664 declare their own commands (numbers), names (strings), descriptions,
3665 and input types for run-time discovery by calling applications. A
3666 subset of these commands are implicitly classed as "executable"
3667 depending on their input type, and only these can be invoked through
3668 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3669 can be based on user input, config files, etc). The distinction is
3670 that "executable" commands cannot return anything other than a boolean
3671 result and can only support numeric or string input, whereas some
3672 discoverable commands may only be for direct use through
3673 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3674 pointers, or other custom uses. The "executable" commands are to
3675 support parameterisations of ENGINE behaviour that can be
3676 unambiguously defined by ENGINEs and used consistently across any
3677 OpenSSL-based application. Commands have been added to all the
3678 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3679 control over shared-library paths without source code alterations.
3682 *) Changed all ENGINE implementations to dynamically allocate their
3683 ENGINEs rather than declaring them statically. Apart from this being
3684 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3685 this also allows the implementations to compile without using the
3686 internal engine_int.h header.
3689 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3690 'const' value. Any code that should be able to modify a RAND_METHOD
3691 should already have non-const pointers to it (ie. they should only
3692 modify their own ones).
3695 *) Made a variety of little tweaks to the ENGINE code.
3696 - "atalla" and "ubsec" string definitions were moved from header files
3697 to C code. "nuron" string definitions were placed in variables
3698 rather than hard-coded - allowing parameterisation of these values
3699 later on via ctrl() commands.
3700 - Removed unused "#if 0"'d code.
3701 - Fixed engine list iteration code so it uses ENGINE_free() to release
3702 structural references.
3703 - Constified the RAND_METHOD element of ENGINE structures.
3704 - Constified various get/set functions as appropriate and added
3705 missing functions (including a catch-all ENGINE_cpy that duplicates
3706 all ENGINE values onto a new ENGINE except reference counts/state).
3707 - Removed NULL parameter checks in get/set functions. Setting a method
3708 or function to NULL is a way of cancelling out a previously set
3709 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3710 and doesn't justify the extra error symbols and code.
3711 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3712 flags from engine_int.h to engine.h.
3713 - Changed prototypes for ENGINE handler functions (init(), finish(),
3714 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3717 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3718 to the algorithm using long division. The binary algorithm can be
3719 used only if the modulus is odd. On 32-bit systems, it is faster
3720 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3721 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3722 up to 450 bits. In 64-bit environments, the binary algorithm
3723 appears to be advantageous for much longer moduli; here we use it
3724 for moduli up to 2048 bits.
3727 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3728 could not support the combine flag in choice fields.
3731 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3732 extensions from a certificate request to the certificate.
3735 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3736 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3737 file: this allows the display of the certificate about to be
3738 signed to be customised, to allow certain fields to be included
3739 or excluded and extension details. The old system didn't display
3740 multicharacter strings properly, omitted fields not in the policy
3741 and couldn't display additional details such as extensions.
3744 *) Function EC_POINTs_mul for multiple scalar multiplication
3745 of an arbitrary number of elliptic curve points
3746 \sum scalars[i]*points[i],
3747 optionally including the generator defined for the EC_GROUP:
3748 scalar*generator + \sum scalars[i]*points[i].
3750 EC_POINT_mul is a simple wrapper function for the typical case
3751 that the point list has just one item (besides the optional
3755 *) First EC_METHODs for curves over GF(p):
3757 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3758 operations and provides various method functions that can also
3759 operate with faster implementations of modular arithmetic.
3761 EC_GFp_mont_method() reuses most functions that are part of
3762 EC_GFp_simple_method, but uses Montgomery arithmetic.
3764 [Bodo Moeller; point addition and point doubling
3765 implementation directly derived from source code provided by
3766 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3768 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3769 crypto/ec/ec_lib.c):
3771 Curves are EC_GROUP objects (with an optional group generator)
3772 based on EC_METHODs that are built into the library.
3774 Points are EC_POINT objects based on EC_GROUP objects.
3776 Most of the framework would be able to handle curves over arbitrary
3777 finite fields, but as there are no obvious types for fields other
3778 than GF(p), some functions are limited to that for now.
3781 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3782 that the file contains a complete HTTP response.
3785 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3786 change the def and num file printf format specifier from "%-40sXXX"
3787 to "%-39s XXX". The latter will always guarantee a space after the
3788 field while the former will cause them to run together if the field
3789 is 40 of more characters long.
3792 *) Constify the cipher and digest 'method' functions and structures
3793 and modify related functions to take constant EVP_MD and EVP_CIPHER
3797 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3798 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3801 *) Modify EVP_Digest*() routines so they now return values. Although the
3802 internal software routines can never fail additional hardware versions
3806 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3808 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3809 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3812 ERR_R_NESTED_ASN1_ERROR
3814 ERR_R_MISSING_ASN1_EOS
3815 were 4 .. 9, conflicting with
3816 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3818 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3819 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3821 Add new error code 'ERR_R_INTERNAL_ERROR'.
3824 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3828 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3829 sets the subject name for a new request or supersedes the
3830 subject name in a given request. Formats that can be parsed are
3831 'CN=Some Name, OU=myOU, C=IT'
3833 'CN=Some Name/OU=myOU/C=IT'.
3835 Add options '-batch' and '-verbose' to 'openssl req'.
3836 [Massimiliano Pala <madwolf@hackmasters.net>]
3838 *) Introduce the possibility to access global variables through
3839 functions on platform were that's the best way to handle exporting
3840 global variables in shared libraries. To enable this functionality,
3841 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3842 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3843 is normally done by Configure or something similar).
3845 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3846 in the source file (foo.c) like this:
3848 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3849 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3851 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3852 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3854 OPENSSL_DECLARE_GLOBAL(int,foo);
3855 #define foo OPENSSL_GLOBAL_REF(foo)
3856 OPENSSL_DECLARE_GLOBAL(double,bar);
3857 #define bar OPENSSL_GLOBAL_REF(bar)
3859 The #defines are very important, and therefore so is including the
3860 header file everywhere where the defined globals are used.
3862 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3863 of ASN.1 items, but that structure is a bit different.
3865 The largest change is in util/mkdef.pl which has been enhanced with
3866 better and easier to understand logic to choose which symbols should
3867 go into the Windows .def files as well as a number of fixes and code
3868 cleanup (among others, algorithm keywords are now sorted
3869 lexicographically to avoid constant rewrites).
3872 *) In BN_div() keep a copy of the sign of 'num' before writing the
3873 result to 'rm' because if rm==num the value will be overwritten
3874 and produce the wrong result if 'num' is negative: this caused
3875 problems with BN_mod() and BN_nnmod().
3878 *) Function OCSP_request_verify(). This checks the signature on an
3879 OCSP request and verifies the signer certificate. The signer
3880 certificate is just checked for a generic purpose and OCSP request
3884 *) Add OCSP_check_validity() function to check the validity of OCSP
3885 responses. OCSP responses are prepared in real time and may only
3886 be a few seconds old. Simply checking that the current time lies
3887 between thisUpdate and nextUpdate max reject otherwise valid responses
3888 caused by either OCSP responder or client clock inaccuracy. Instead
3889 we allow thisUpdate and nextUpdate to fall within a certain period of
3890 the current time. The age of the response can also optionally be
3891 checked. Two new options -validity_period and -status_age added to
3895 *) If signature or public key algorithm is unrecognized print out its
3896 OID rather that just UNKNOWN.
3899 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3900 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3901 ID to be generated from the issuer certificate alone which can then be
3902 passed to OCSP_id_issuer_cmp().
3905 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3906 ASN1 modules to export functions returning ASN1_ITEM pointers
3907 instead of the ASN1_ITEM structures themselves. This adds several
3908 new macros which allow the underlying ASN1 function/structure to
3909 be accessed transparently. As a result code should not use ASN1_ITEM
3910 references directly (such as &X509_it) but instead use the relevant
3911 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3912 use of the new ASN1 code on platforms where exporting structures
3913 is problematical (for example in shared libraries) but exporting
3914 functions returning pointers to structures is not.
3917 *) Add support for overriding the generation of SSL/TLS session IDs.
3918 These callbacks can be registered either in an SSL_CTX or per SSL.
3919 The purpose of this is to allow applications to control, if they wish,
3920 the arbitrary values chosen for use as session IDs, particularly as it
3921 can be useful for session caching in multiple-server environments. A
3922 command-line switch for testing this (and any client code that wishes
3923 to use such a feature) has been added to "s_server".
3924 [Geoff Thorpe, Lutz Jaenicke]
3926 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3927 of the form '#if defined(...) || defined(...) || ...' and
3928 '#if !defined(...) && !defined(...) && ...'. This also avoids
3929 the growing number of special cases it was previously handling.
3932 *) Make all configuration macros available for application by making
3933 sure they are available in opensslconf.h, by giving them names starting
3934 with "OPENSSL_" to avoid conflicts with other packages and by making
3935 sure e_os2.h will cover all platform-specific cases together with
3937 Additionally, it is now possible to define configuration/platform-
3938 specific names (called "system identities"). In the C code, these
3939 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3940 macro with the name beginning with "OPENSSL_SYS_", which is determined
3941 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3945 *) New option -set_serial to 'req' and 'x509' this allows the serial
3946 number to use to be specified on the command line. Previously self
3947 signed certificates were hard coded with serial number 0 and the
3948 CA options of 'x509' had to use a serial number in a file which was
3952 *) New options to 'ca' utility to support V2 CRL entry extensions.
3953 Currently CRL reason, invalidity date and hold instruction are
3954 supported. Add new CRL extensions to V3 code and some new objects.
3957 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3958 disable standard block padding (aka PKCS#5 padding) in the EVP
3959 API, which was previously mandatory. This means that the data is
3960 not padded in any way and so the total length much be a multiple
3961 of the block size, otherwise an error occurs.
3964 *) Initial (incomplete) OCSP SSL support.
3967 *) New function OCSP_parse_url(). This splits up a URL into its host,
3968 port and path components: primarily to parse OCSP URLs. New -url
3969 option to ocsp utility.
3972 *) New nonce behavior. The return value of OCSP_check_nonce() now
3973 reflects the various checks performed. Applications can decide
3974 whether to tolerate certain situations such as an absent nonce
3975 in a response when one was present in a request: the ocsp application
3976 just prints out a warning. New function OCSP_add1_basic_nonce()
3977 this is to allow responders to include a nonce in a response even if
3978 the request is nonce-less.
3981 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3982 skipped when using openssl x509 multiple times on a single input file,
3983 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3986 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3987 set string type: to handle setting ASN1_TIME structures. Fix ca
3988 utility to correctly initialize revocation date of CRLs.
3991 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3992 the clients preferred ciphersuites and rather use its own preferences.
3993 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3994 Internet Explorer by ensuring unchanged hash method during stepup.
3995 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3998 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3999 to aes and add a new 'exist' option to print out symbols that don't
4003 *) Additional options to ocsp utility to allow flags to be set and
4004 additional certificates supplied.
4007 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4008 OCSP client a number of certificate to only verify the response
4012 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4013 handle the new API. Currently only ECB, CBC modes supported. Add new
4016 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4017 Encryption Standard (AES) Ciphersuites for Transport Layer
4018 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4019 not enabled by default and were not part of the "ALL" ciphersuite
4020 alias because they were not yet official; they could be
4021 explicitly requested by specifying the "AESdraft" ciphersuite
4022 group alias. In the final release of OpenSSL 0.9.7, the group
4023 alias is called "AES" and is part of "ALL".)
4024 [Ben Laurie, Steve Henson, Bodo Moeller]
4026 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4027 request to response.
4030 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4031 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4032 extract information from a certificate request. OCSP_response_create()
4033 creates a response and optionally adds a basic response structure.
4034 OCSP_basic_add1_status() adds a complete single response to a basic
4035 response and returns the OCSP_SINGLERESP structure just added (to allow
4036 extensions to be included for example). OCSP_basic_add1_cert() adds a
4037 certificate to a basic response and OCSP_basic_sign() signs a basic
4038 response with various flags. New helper functions ASN1_TIME_check()
4039 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4040 (converts ASN1_TIME to GeneralizedTime).
4043 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4044 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4045 structure from a certificate. X509_pubkey_digest() digests the public_key
4046 contents: this is used in various key identifiers.
4049 *) Make sk_sort() tolerate a NULL argument.
4050 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4052 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4053 passed by the function are trusted implicitly. If any of them signed the
4054 response then it is assumed to be valid and is not verified.
4057 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4058 to data. This was previously part of the PKCS7 ASN1 code. This
4059 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4060 [Steve Henson, reported by Kenneth R. Robinette
4061 <support@securenetterm.com>]
4063 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4064 routines: without these tracing memory leaks is very painful.
4065 Fix leaks in PKCS12 and PKCS7 routines.
4068 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4069 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4070 effectively meant GeneralizedTime would never be used. Now it
4071 is initialised to -1 but X509_time_adj() now has to check the value
4072 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4073 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4074 [Steve Henson, reported by Kenneth R. Robinette
4075 <support@securenetterm.com>]
4077 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4078 result in a zero length in the ASN1_INTEGER structure which was
4079 not consistent with the structure when d2i_ASN1_INTEGER() was used
4080 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4081 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4082 where it did not print out a minus for negative ASN1_INTEGER.
4085 *) Add summary printout to ocsp utility. The various functions which
4086 convert status values to strings have been renamed to:
4087 OCSP_response_status_str(), OCSP_cert_status_str() and
4088 OCSP_crl_reason_str() and are no longer static. New options
4089 to verify nonce values and to disable verification. OCSP response
4090 printout format cleaned up.
4093 *) Add additional OCSP certificate checks. These are those specified
4094 in RFC2560. This consists of two separate checks: the CA of the
4095 certificate being checked must either be the OCSP signer certificate
4096 or the issuer of the OCSP signer certificate. In the latter case the
4097 OCSP signer certificate must contain the OCSP signing extended key
4098 usage. This check is performed by attempting to match the OCSP
4099 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4100 in the OCSP_CERTID structures of the response.
4103 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4104 and related routines. This uses the standard OpenSSL certificate
4105 verify routines to perform initial checks (just CA validity) and
4106 to obtain the certificate chain. Then additional checks will be
4107 performed on the chain. Currently the root CA is checked to see
4108 if it is explicitly trusted for OCSP signing. This is used to set
4109 a root CA as a global signing root: that is any certificate that
4110 chains to that CA is an acceptable OCSP signing certificate.
4113 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4114 extensions from a separate configuration file.
4115 As when reading extensions from the main configuration file,
4116 the '-extensions ...' option may be used for specifying the
4118 [Massimiliano Pala <madwolf@comune.modena.it>]
4120 *) New OCSP utility. Allows OCSP requests to be generated or
4121 read. The request can be sent to a responder and the output
4122 parsed, outputed or printed in text form. Not complete yet:
4123 still needs to check the OCSP response validity.
4126 *) New subcommands for 'openssl ca':
4127 'openssl ca -status <serial>' prints the status of the cert with
4128 the given serial number (according to the index file).
4129 'openssl ca -updatedb' updates the expiry status of certificates
4131 [Massimiliano Pala <madwolf@comune.modena.it>]
4133 *) New '-newreq-nodes' command option to CA.pl. This is like
4134 '-newreq', but calls 'openssl req' with the '-nodes' option
4135 so that the resulting key is not encrypted.
4136 [Damien Miller <djm@mindrot.org>]
4138 *) New configuration for the GNU Hurd.
4139 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4141 *) Initial code to implement OCSP basic response verify. This
4142 is currently incomplete. Currently just finds the signer's
4143 certificate and verifies the signature on the response.
4146 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4147 value of OPENSSLDIR. This is available via the new '-d' option
4148 to 'openssl version', and is also included in 'openssl version -a'.
4151 *) Allowing defining memory allocation callbacks that will be given
4152 file name and line number information in additional arguments
4153 (a const char* and an int). The basic functionality remains, as
4154 well as the original possibility to just replace malloc(),
4155 realloc() and free() by functions that do not know about these
4156 additional arguments. To register and find out the current
4157 settings for extended allocation functions, the following
4158 functions are provided:
4160 CRYPTO_set_mem_ex_functions
4161 CRYPTO_set_locked_mem_ex_functions
4162 CRYPTO_get_mem_ex_functions
4163 CRYPTO_get_locked_mem_ex_functions
4165 These work the same way as CRYPTO_set_mem_functions and friends.
4166 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4167 extended allocation function is enabled.
4168 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4169 a conventional allocation function is enabled.
4170 [Richard Levitte, Bodo Moeller]
4172 *) Finish off removing the remaining LHASH function pointer casts.
4173 There should no longer be any prototype-casting required when using
4174 the LHASH abstraction, and any casts that remain are "bugs". See
4175 the callback types and macros at the head of lhash.h for details
4176 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4179 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4180 If /dev/[u]random devices are not available or do not return enough
4181 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4183 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4184 /etc/entropy will be queried once each in this sequence, quering stops
4185 when enough entropy was collected without querying more sockets.
4188 *) Change the Unix RAND_poll() variant to be able to poll several
4189 random devices, as specified by DEVRANDOM, until a sufficient amount
4190 of data has been collected. We spend at most 10 ms on each file
4191 (select timeout) and read in non-blocking mode. DEVRANDOM now
4192 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4193 (previously it was just the string "/dev/urandom"), so on typical
4194 platforms the 10 ms delay will never occur.
4195 Also separate out the Unix variant to its own file, rand_unix.c.
4196 For VMS, there's a currently-empty rand_vms.c.
4199 *) Move OCSP client related routines to ocsp_cl.c. These
4200 provide utility functions which an application needing
4201 to issue a request to an OCSP responder and analyse the
4202 response will typically need: as opposed to those which an
4203 OCSP responder itself would need which will be added later.
4205 OCSP_request_sign() signs an OCSP request with an API similar
4206 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4207 response. OCSP_response_get1_basic() extracts basic response
4208 from response. OCSP_resp_find_status(): finds and extracts status
4209 information from an OCSP_CERTID structure (which will be created
4210 when the request structure is built). These are built from lower
4211 level functions which work on OCSP_SINGLERESP structures but
4212 wont normally be used unless the application wishes to examine
4213 extensions in the OCSP response for example.
4215 Replace nonce routines with a pair of functions.
4216 OCSP_request_add1_nonce() adds a nonce value and optionally
4217 generates a random value. OCSP_check_nonce() checks the
4218 validity of the nonce in an OCSP response.
4221 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4222 This doesn't copy the supplied OCSP_CERTID and avoids the
4223 need to free up the newly created id. Change return type
4224 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4225 This can then be used to add extensions to the request.
4226 Deleted OCSP_request_new(), since most of its functionality
4227 is now in OCSP_REQUEST_new() (and the case insensitive name
4228 clash) apart from the ability to set the request name which
4229 will be added elsewhere.
4232 *) Update OCSP API. Remove obsolete extensions argument from
4233 various functions. Extensions are now handled using the new
4234 OCSP extension code. New simple OCSP HTTP function which
4235 can be used to send requests and parse the response.
4238 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4239 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4240 uses the special reorder version of SET OF to sort the attributes
4241 and reorder them to match the encoded order. This resolves a long
4242 standing problem: a verify on a PKCS7 structure just after signing
4243 it used to fail because the attribute order did not match the
4244 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4245 it uses the received order. This is necessary to tolerate some broken
4246 software that does not order SET OF. This is handled by encoding
4247 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4248 to produce the required SET OF.
4251 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4252 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4253 files to get correct declarations of the ASN.1 item variables.
4256 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4257 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4258 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4259 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4260 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4261 ASN1_ITEM and no wrapper functions.
4264 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4265 replace the old function pointer based I/O routines. Change most of
4266 the *_d2i_bio() and *_d2i_fp() functions to use these.
4269 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4270 lines, recognice more "algorithms" that can be deselected, and make
4271 it complain about algorithm deselection that isn't recognised.
4274 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4275 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4276 to use new functions. Add NO_ASN1_OLD which can be set to remove
4277 some old style ASN1 functions: this can be used to determine if old
4278 code will still work when these eventually go away.
4281 *) New extension functions for OCSP structures, these follow the
4282 same conventions as certificates and CRLs.
4285 *) New function X509V3_add1_i2d(). This automatically encodes and
4286 adds an extension. Its behaviour can be customised with various
4287 flags to append, replace or delete. Various wrappers added for
4288 certifcates and CRLs.
4291 *) Fix to avoid calling the underlying ASN1 print routine when
4292 an extension cannot be parsed. Correct a typo in the
4293 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4296 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4297 entries for variables.
4300 *) Add functionality to apps/openssl.c for detecting locking
4301 problems: As the program is single-threaded, all we have
4302 to do is register a locking callback using an array for
4303 storing which locks are currently held by the program.
4306 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4307 SSL_get_ex_data_X509_STORE_idx(), which is used in
4308 ssl_verify_cert_chain() and thus can be called at any time
4309 during TLS/SSL handshakes so that thread-safety is essential.
4310 Unfortunately, the ex_data design is not at all suited
4311 for multi-threaded use, so it probably should be abolished.
4314 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4315 [Broadcom, tweaked and integrated by Geoff Thorpe]
4317 *) Move common extension printing code to new function
4318 X509V3_print_extensions(). Reorganise OCSP print routines and
4319 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4322 *) New function X509_signature_print() to remove duplication in some
4326 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4327 set (this was treated exactly the same as SET OF previously). This
4328 is used to reorder the STACK representing the structure to match the
4329 encoding. This will be used to get round a problem where a PKCS7
4330 structure which was signed could not be verified because the STACK
4331 order did not reflect the encoded order.
4334 *) Reimplement the OCSP ASN1 module using the new code.
4337 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4338 for its ASN1 operations. The old style function pointers still exist
4339 for now but they will eventually go away.
4342 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4343 completely replaces the old ASN1 functionality with a table driven
4344 encoder and decoder which interprets an ASN1_ITEM structure describing
4345 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4346 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4347 has also been converted to the new form.
4350 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4351 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4352 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4353 for negative moduli.
4356 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4357 of not touching the result's sign bit.
4360 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4364 *) Changed the LHASH code to use prototypes for callbacks, and created
4365 macros to declare and implement thin (optionally static) functions
4366 that provide type-safety and avoid function pointer casting for the
4367 type-specific callbacks.
4370 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4372 [Veers Staats <staatsvr@asc.hpc.mil>,
4373 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4375 *) Reformat the FAQ so the different questions and answers can be divided
4376 in sections depending on the subject.
4379 *) Have the zlib compression code load ZLIB.DLL dynamically under
4383 *) New function BN_mod_sqrt for computing square roots modulo a prime
4384 (using the probabilistic Tonelli-Shanks algorithm unless
4385 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4386 be handled deterministically).
4387 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4389 *) Make BN_mod_inverse faster by explicitly handling small quotients
4390 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4391 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4394 *) New function BN_kronecker.
4397 *) Fix BN_gcd so that it works on negative inputs; the result is
4398 positive unless both parameters are zero.
4399 Previously something reasonably close to an infinite loop was
4400 possible because numbers could be growing instead of shrinking
4401 in the implementation of Euclid's algorithm.
4404 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4405 sign of the number in question.
4407 Fix BN_is_word(a,w) to work correctly for w == 0.
4409 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4410 because its test if the absolute value of 'a' equals 'w'.
4411 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4412 it exists mostly for use in the implementations of BN_is_zero(),
4413 BN_is_one(), and BN_is_word().
4416 *) New function BN_swap.
4419 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4420 the exponentiation functions are more likely to produce reasonable
4421 results on negative inputs.
4424 *) Change BN_mod_mul so that the result is always non-negative.
4425 Previously, it could be negative if one of the factors was negative;
4426 I don't think anyone really wanted that behaviour.
4429 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4430 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4431 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4432 and add new functions:
4441 BN_mod_lshift1_quick
4445 These functions always generate non-negative results.
4447 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4448 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4450 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4451 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4452 be reduced modulo m.
4453 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4456 The following entry accidentily appeared in the CHANGES file
4457 distributed with OpenSSL 0.9.7. The modifications described in
4458 it do *not* apply to OpenSSL 0.9.7.
4460 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4461 was actually never needed) and in BN_mul(). The removal in BN_mul()
4462 required a small change in bn_mul_part_recursive() and the addition
4463 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4464 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4465 bn_sub_words() and bn_add_words() except they take arrays with
4470 *) In 'openssl passwd', verify passwords read from the terminal
4471 unless the '-salt' option is used (which usually means that
4472 verification would just waste user's time since the resulting
4473 hash is going to be compared with some given password hash)
4474 or the new '-noverify' option is used.
4476 This is an incompatible change, but it does not affect
4477 non-interactive use of 'openssl passwd' (passwords on the command
4478 line, '-stdin' option, '-in ...' option) and thus should not
4482 *) Remove all references to RSAref, since there's no more need for it.
4485 *) Make DSO load along a path given through an environment variable
4486 (SHLIB_PATH) with shl_load().
4489 *) Constify the ENGINE code as a result of BIGNUM constification.
4490 Also constify the RSA code and most things related to it. In a
4491 few places, most notable in the depth of the ASN.1 code, ugly
4492 casts back to non-const were required (to be solved at a later
4496 *) Make it so the openssl application has all engines loaded by default.
4499 *) Constify the BIGNUM routines a little more.
4502 *) Add the following functions:
4504 ENGINE_load_cswift()
4506 ENGINE_load_atalla()
4508 ENGINE_load_builtin_engines()
4510 That way, an application can itself choose if external engines that
4511 are built-in in OpenSSL shall ever be used or not. The benefit is
4512 that applications won't have to be linked with libdl or other dso
4513 libraries unless it's really needed.
4515 Changed 'openssl engine' to load all engines on demand.
4516 Changed the engine header files to avoid the duplication of some
4517 declarations (they differed!).
4520 *) 'openssl engine' can now list capabilities.
4523 *) Better error reporting in 'openssl engine'.
4526 *) Never call load_dh_param(NULL) in s_server.
4529 *) Add engine application. It can currently list engines by name and
4530 identity, and test if they are actually available.
4533 *) Improve RPM specification file by forcing symbolic linking and making
4534 sure the installed documentation is also owned by root.root.
4535 [Damien Miller <djm@mindrot.org>]
4537 *) Give the OpenSSL applications more possibilities to make use of
4538 keys (public as well as private) handled by engines.
4541 *) Add OCSP code that comes from CertCo.
4544 *) Add VMS support for the Rijndael code.
4547 *) Added untested support for Nuron crypto accelerator.
4550 *) Add support for external cryptographic devices. This code was
4551 previously distributed separately as the "engine" branch.
4552 [Geoff Thorpe, Richard Levitte]
4554 *) Rework the filename-translation in the DSO code. It is now possible to
4555 have far greater control over how a "name" is turned into a filename
4556 depending on the operating environment and any oddities about the
4557 different shared library filenames on each system.
4560 *) Support threads on FreeBSD-elf in Configure.
4563 *) Fix for SHA1 assembly problem with MASM: it produces
4564 warnings about corrupt line number information when assembling
4565 with debugging information. This is caused by the overlapping
4567 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4570 NCONF_get_number() has no error checking at all. As a replacement,
4571 NCONF_get_number_e() is defined (_e for "error checking") and is
4572 promoted strongly. The old NCONF_get_number is kept around for
4573 binary backward compatibility.
4574 Make it possible for methods to load from something other than a BIO,
4575 by providing a function pointer that is given a name instead of a BIO.
4576 For example, this could be used to load configuration data from an
4580 *) Fix for non blocking accept BIOs. Added new I/O special reason
4581 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4582 with non blocking I/O was not possible because no retry code was
4583 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4587 *) Added the beginnings of Rijndael support.
4590 *) Fix for bug in DirectoryString mask setting. Add support for
4591 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4592 to allow certificate printing to more controllable, additional
4593 'certopt' option to 'x509' to allow new printing options to be
4597 *) Clean old EAY MD5 hack from e_os.h.
4600 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4602 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4603 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4604 [Joe Orton, Steve Henson]
4606 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4608 *) Fix additional bug revealed by the NISCC test suite:
4610 Stop bug triggering large recursion when presented with
4611 certain ASN.1 tags (CVE-2003-0851)
4614 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4616 *) Fix various bugs revealed by running the NISCC test suite:
4618 Stop out of bounds reads in the ASN1 code when presented with
4619 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4621 If verify callback ignores invalid public key errors don't try to check
4622 certificate signature with the NULL public key.
4626 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4627 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4631 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4632 extra data after the compression methods not only for TLS 1.0
4633 but also for SSL 3.0 (as required by the specification).
4634 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4636 *) Change X509_certificate_type() to mark the key as exported/exportable
4637 when it's 512 *bits* long, not 512 bytes.
4640 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4642 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4643 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4644 a protocol version number mismatch like a decryption error
4645 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4648 *) Turn on RSA blinding by default in the default implementation
4649 to avoid a timing attack. Applications that don't want it can call
4650 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4651 They would be ill-advised to do so in most cases.
4652 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4654 *) Change RSA blinding code so that it works when the PRNG is not
4655 seeded (in this case, the secret RSA exponent is abused as
4656 an unpredictable seed -- if it is not unpredictable, there
4657 is no point in blinding anyway). Make RSA blinding thread-safe
4658 by remembering the creator's thread ID in rsa->blinding and
4659 having all other threads use local one-time blinding factors
4660 (this requires more computation than sharing rsa->blinding, but
4661 avoids excessive locking; and if an RSA object is not shared
4662 between threads, blinding will still be very fast).
4665 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4667 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4668 via timing by performing a MAC computation even if incorrrect
4669 block cipher padding has been found. This is a countermeasure
4670 against active attacks where the attacker has to distinguish
4671 between bad padding and a MAC verification error. (CVE-2003-0078)
4673 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4674 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4675 Martin Vuagnoux (EPFL, Ilion)]
4677 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4679 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4680 memory from it's contents. This is done with a counter that will
4681 place alternating values in each byte. This can be used to solve
4682 two issues: 1) the removal of calls to memset() by highly optimizing
4683 compilers, and 2) cleansing with other values than 0, since those can
4684 be read through on certain media, for example a swap space on disk.
4687 *) Bugfix: client side session caching did not work with external caching,
4688 because the session->cipher setting was not restored when reloading
4689 from the external cache. This problem was masked, when
4690 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4691 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4694 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4695 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4696 [Zeev Lieber <zeev-l@yahoo.com>]
4698 *) Undo an undocumented change introduced in 0.9.6e which caused
4699 repeated calls to OpenSSL_add_all_ciphers() and
4700 OpenSSL_add_all_digests() to be ignored, even after calling
4704 *) Change the default configuration reader to deal with last line not
4705 being properly terminated.
4708 *) Change X509_NAME_cmp() so it applies the special rules on handling
4709 DN values that are of type PrintableString, as well as RDNs of type
4710 emailAddress where the value has the type ia5String.
4711 [stefank@valicert.com via Richard Levitte]
4713 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4714 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4715 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4716 the bitwise-OR of the two for use by the majority of applications
4717 wanting this behaviour, and update the docs. The documented
4718 behaviour and actual behaviour were inconsistent and had been
4719 changing anyway, so this is more a bug-fix than a behavioural
4721 [Geoff Thorpe, diagnosed by Nadav Har'El]
4723 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4724 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4727 *) Fix initialization code race conditions in
4728 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4729 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4730 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4731 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4732 ssl2_get_cipher_by_char(),
4733 ssl3_get_cipher_by_char().
4734 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4736 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4737 the cached sessions are flushed, as the remove_cb() might use ex_data
4738 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4739 (see [openssl.org #212]).
4740 [Geoff Thorpe, Lutz Jaenicke]
4742 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4743 length, instead of the encoding length to d2i_ASN1_OBJECT.
4746 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4748 *) [In 0.9.6g-engine release:]
4749 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4750 [Lynn Gazis <lgazis@rainbow.com>]
4752 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4754 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4755 and get fix the header length calculation.
4756 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4757 Alon Kantor <alonk@checkpoint.com> (and others),
4760 *) Use proper error handling instead of 'assertions' in buffer
4761 overflow checks added in 0.9.6e. This prevents DoS (the
4762 assertions could call abort()).
4763 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4765 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4767 *) Add various sanity checks to asn1_get_length() to reject
4768 the ASN1 length bytes if they exceed sizeof(long), will appear
4769 negative or the content length exceeds the length of the
4771 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4773 *) Fix cipher selection routines: ciphers without encryption had no flags
4774 for the cipher strength set and where therefore not handled correctly
4775 by the selection routines (PR #130).
4778 *) Fix EVP_dsa_sha macro.
4782 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4783 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4784 that was added in OpenSSL 0.9.6d.
4786 As the countermeasure turned out to be incompatible with some
4787 broken SSL implementations, the new option is part of SSL_OP_ALL.
4788 SSL_OP_ALL is usually employed when compatibility with weird SSL
4789 implementations is desired (e.g. '-bugs' option to 's_client' and
4790 's_server'), so the new option is automatically set in many
4794 *) Changes in security patch:
4796 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4797 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4798 Air Force Materiel Command, USAF, under agreement number
4801 *) Add various sanity checks to asn1_get_length() to reject
4802 the ASN1 length bytes if they exceed sizeof(long), will appear
4803 negative or the content length exceeds the length of the
4804 supplied buffer. (CVE-2002-0659)
4805 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4807 *) Assertions for various potential buffer overflows, not known to
4809 [Ben Laurie (CHATS)]
4811 *) Various temporary buffers to hold ASCII versions of integers were
4812 too small for 64 bit platforms. (CVE-2002-0655)
4813 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4815 *) Remote buffer overflow in SSL3 protocol - an attacker could
4816 supply an oversized session ID to a client. (CVE-2002-0656)
4817 [Ben Laurie (CHATS)]
4819 *) Remote buffer overflow in SSL2 protocol - an attacker could
4820 supply an oversized client master key. (CVE-2002-0656)
4821 [Ben Laurie (CHATS)]
4823 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4825 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4826 encoded as NULL) with id-dsa-with-sha1.
4827 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4829 *) Check various X509_...() return values in apps/req.c.
4830 [Nils Larsch <nla@trustcenter.de>]
4832 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4833 an end-of-file condition would erronously be flagged, when the CRLF
4834 was just at the end of a processed block. The bug was discovered when
4835 processing data through a buffering memory BIO handing the data to a
4836 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4837 <ptsekov@syntrex.com> and Nedelcho Stanev.
4840 *) Implement a countermeasure against a vulnerability recently found
4841 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4842 before application data chunks to avoid the use of known IVs
4843 with data potentially chosen by the attacker.
4846 *) Fix length checks in ssl3_get_client_hello().
4849 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4850 to prevent ssl3_read_internal() from incorrectly assuming that
4851 ssl3_read_bytes() found application data while handshake
4852 processing was enabled when in fact s->s3->in_read_app_data was
4853 merely automatically cleared during the initial handshake.
4854 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4856 *) Fix object definitions for Private and Enterprise: they were not
4857 recognized in their shortname (=lowercase) representation. Extend
4858 obj_dat.pl to issue an error when using undefined keywords instead
4859 of silently ignoring the problem (Svenning Sorensen
4860 <sss@sss.dnsalias.net>).
4863 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4864 generators, i.e. generators other than 2 and 5. (Previously, the
4865 code did not properly initialise the 'add' and 'rem' values to
4866 BN_generate_prime().)
4868 In the new general case, we do not insist that 'generator' is
4869 actually a primitive root: This requirement is rather pointless;
4870 a generator of the order-q subgroup is just as good, if not
4874 *) Map new X509 verification errors to alerts. Discovered and submitted by
4875 Tom Wu <tom@arcot.com>.
4878 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4879 returning non-zero before the data has been completely received
4880 when using non-blocking I/O.
4881 [Bodo Moeller; problem pointed out by John Hughes]
4883 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4884 [Ben Laurie, Lutz Jaenicke]
4886 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4887 Yoram Zahavi <YoramZ@gilian.com>).
4890 *) Add information about CygWin 1.3 and on, and preserve proper
4891 configuration for the versions before that.
4892 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4894 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4895 check whether we deal with a copy of a session and do not delete from
4896 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4897 <izhar@checkpoint.com>.
4900 *) Do not store session data into the internal session cache, if it
4901 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4902 flag is set). Proposed by Aslam <aslam@funk.com>.
4905 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4909 *) [In 0.9.6d-engine release:]
4910 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4911 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4913 *) Add the configuration target linux-s390x.
4914 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4916 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4917 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4918 variable as an indication that a ClientHello message has been
4919 received. As the flag value will be lost between multiple
4920 invocations of ssl3_accept when using non-blocking I/O, the
4921 function may not be aware that a handshake has actually taken
4922 place, thus preventing a new session from being added to the
4925 To avoid this problem, we now set s->new_session to 2 instead of
4926 using a local variable.
4927 [Lutz Jaenicke, Bodo Moeller]
4929 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4930 if the SSL_R_LENGTH_MISMATCH error is detected.
4931 [Geoff Thorpe, Bodo Moeller]
4933 *) New 'shared_ldflag' column in Configure platform table.
4936 *) Fix EVP_CIPHER_mode macro.
4937 ["Dan S. Camper" <dan@bti.net>]
4939 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4940 type, we must throw them away by setting rr->length to 0.
4941 [D P Chang <dpc@qualys.com>]
4943 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4945 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4946 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4947 worked incorrectly for those cases where range = 10..._2 and
4948 3*range is two bits longer than range.)
4951 *) Only add signing time to PKCS7 structures if it is not already
4955 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4956 OBJ_ld_ce should be OBJ_id_ce.
4957 Also some ip-pda OIDs in crypto/objects/objects.txt were
4958 incorrect (cf. RFC 3039).
4959 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4961 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4962 returns early because it has nothing to do.
4963 [Andy Schneider <andy.schneider@bjss.co.uk>]
4965 *) [In 0.9.6c-engine release:]
4966 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4967 [Andy Schneider <andy.schneider@bjss.co.uk>]
4969 *) [In 0.9.6c-engine release:]
4970 Add support for Cryptographic Appliance's keyserver technology.
4971 (Use engine 'keyclient')
4972 [Cryptographic Appliances and Geoff Thorpe]
4974 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4975 is called via tools/c89.sh because arguments have to be
4976 rearranged (all '-L' options must appear before the first object
4978 [Richard Shapiro <rshapiro@abinitio.com>]
4980 *) [In 0.9.6c-engine release:]
4981 Add support for Broadcom crypto accelerator cards, backported
4983 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4985 *) [In 0.9.6c-engine release:]
4986 Add support for SureWare crypto accelerator cards from
4987 Baltimore Technologies. (Use engine 'sureware')
4988 [Baltimore Technologies and Mark Cox]
4990 *) [In 0.9.6c-engine release:]
4991 Add support for crypto accelerator cards from Accelerated
4992 Encryption Processing, www.aep.ie. (Use engine 'aep')
4993 [AEP Inc. and Mark Cox]
4995 *) Add a configuration entry for gcc on UnixWare.
4996 [Gary Benson <gbenson@redhat.com>]
4998 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4999 messages are stored in a single piece (fixed-length part and
5000 variable-length part combined) and fix various bugs found on the way.
5003 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5004 instead. BIO_gethostbyname() does not know what timeouts are
5005 appropriate, so entries would stay in cache even when they have
5007 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5009 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5010 faced with a pathologically small ClientHello fragment that does
5011 not contain client_version: Instead of aborting with an error,
5012 simply choose the highest available protocol version (i.e.,
5013 TLS 1.0 unless it is disabled). In practice, ClientHello
5014 messages are never sent like this, but this change gives us
5015 strictly correct behaviour at least for TLS.
5018 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5019 never resets s->method to s->ctx->method when called from within
5020 one of the SSL handshake functions.
5021 [Bodo Moeller; problem pointed out by Niko Baric]
5023 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5024 (sent using the client's version number) if client_version is
5025 smaller than the protocol version in use. Also change
5026 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5027 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5028 the client will at least see that alert.
5031 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5035 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5036 client receives HelloRequest while in a handshake.
5037 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5039 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5040 should end in 'break', not 'goto end' which circuments various
5041 cleanups done in state SSL_ST_OK. But session related stuff
5042 must be disabled for SSL_ST_OK in the case that we just sent a
5045 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5046 before just sending a HelloRequest.
5047 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5049 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5050 reveal whether illegal block cipher padding was found or a MAC
5051 verification error occured. (Neither SSLerr() codes nor alerts
5052 are directly visible to potential attackers, but the information
5053 may leak via logfiles.)
5055 Similar changes are not required for the SSL 2.0 implementation
5056 because the number of padding bytes is sent in clear for SSL 2.0,
5057 and the extra bytes are just ignored. However ssl/s2_pkt.c
5058 failed to verify that the purported number of padding bytes is in
5062 *) Add OpenUNIX-8 support including shared libraries
5063 (Boyd Lynn Gerber <gerberb@zenez.com>).
5066 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5067 'wristwatch attack' using huge encoding parameters (cf.
5068 James H. Manger's CRYPTO 2001 paper). Note that the
5069 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5070 encoding parameters and hence was not vulnerable.
5073 *) BN_sqr() bug fix.
5074 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5076 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5077 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5078 followed by modular reduction.
5079 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5081 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5082 equivalent based on BN_pseudo_rand() instead of BN_rand().
5085 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5086 This function was broken, as the check for a new client hello message
5087 to handle SGC did not allow these large messages.
5088 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5091 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5094 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5095 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5098 *) Rework the configuration and shared library support for Tru64 Unix.
5099 The configuration part makes use of modern compiler features and
5100 still retains old compiler behavior for those that run older versions
5101 of the OS. The shared library support part includes a variant that
5102 uses the RPATH feature, and is available through the special
5103 configuration target "alpha-cc-rpath", which will never be selected
5105 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5107 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5108 with the same message size as in ssl3_get_certificate_request().
5109 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5110 messages might inadvertently be reject as too long.
5111 [Petr Lampa <lampa@fee.vutbr.cz>]
5113 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5116 *) Modified SSL library such that the verify_callback that has been set
5117 specificly for an SSL object with SSL_set_verify() is actually being
5118 used. Before the change, a verify_callback set with this function was
5119 ignored and the verify_callback() set in the SSL_CTX at the time of
5120 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5121 to allow the necessary settings.
5124 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5125 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5126 done automatically (in contradiction to the requirements of the C
5127 standard). This made problems when used from OpenSSH.
5130 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5131 dh->length and always used
5133 BN_rand_range(priv_key, dh->p).
5135 BN_rand_range() is not necessary for Diffie-Hellman, and this
5136 specific range makes Diffie-Hellman unnecessarily inefficient if
5137 dh->length (recommended exponent length) is much smaller than the
5138 length of dh->p. We could use BN_rand_range() if the order of
5139 the subgroup was stored in the DH structure, but we only have
5144 BN_rand(priv_key, l, ...)
5146 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5152 RSA_eay_public_encrypt
5153 RSA_eay_private_decrypt
5154 RSA_eay_private_encrypt (signing)
5155 RSA_eay_public_decrypt (signature verification)
5157 (default implementations for RSA_public_encrypt,
5158 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5159 always reject numbers >= n.
5162 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5163 to synchronize access to 'locking_thread'. This is necessary on
5164 systems where access to 'locking_thread' (an 'unsigned long'
5165 variable) is not atomic.
5168 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5169 *before* setting the 'crypto_lock_rand' flag. The previous code had
5170 a race condition if 0 is a valid thread ID.
5171 [Travis Vitek <vitek@roguewave.com>]
5173 *) Add support for shared libraries under Irix.
5174 [Albert Chin-A-Young <china@thewrittenword.com>]
5176 *) Add configuration option to build on Linux on both big-endian and
5178 [Ralf Baechle <ralf@uni-koblenz.de>]
5180 *) Add the possibility to create shared libraries on HP-UX.
5183 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5185 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5186 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5187 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5188 PRNG state recovery was possible based on the output of
5189 one PRNG request appropriately sized to gain knowledge on
5190 'md' followed by enough consecutive 1-byte PRNG requests
5191 to traverse all of 'state'.
5193 1. When updating 'md_local' (the current thread's copy of 'md')
5194 during PRNG output generation, hash all of the previous
5195 'md_local' value, not just the half used for PRNG output.
5197 2. Make the number of bytes from 'state' included into the hash
5198 independent from the number of PRNG bytes requested.
5200 The first measure alone would be sufficient to avoid
5201 Markku-Juhani's attack. (Actually it had never occurred
5202 to me that the half of 'md_local' used for chaining was the
5203 half from which PRNG output bytes were taken -- I had always
5204 assumed that the secret half would be used.) The second
5205 measure makes sure that additional data from 'state' is never
5206 mixed into 'md_local' in small portions; this heuristically
5207 further strengthens the PRNG.
5210 *) Fix crypto/bn/asm/mips3.s.
5213 *) When only the key is given to "enc", the IV is undefined. Print out
5214 an error message in this case.
5217 *) Handle special case when X509_NAME is empty in X509 printing routines.
5220 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5221 positive and less than q.
5224 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5225 used: it isn't thread safe and the add_lock_callback should handle
5227 [Paul Rose <Paul.Rose@bridge.com>]
5229 *) Verify that incoming data obeys the block size in
5230 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5234 [Ulf Möller, Bodo Möller]
5236 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5237 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5238 when fixing the server behaviour for backwards-compatible 'client
5239 hello' messages. (Note that the attack is impractical against
5240 SSL 3.0 and TLS 1.0 anyway because length and version checking
5241 means that the probability of guessing a valid ciphertext is
5242 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5245 Before 0.9.5, the countermeasure (hide the error by generating a
5246 random 'decryption result') did not work properly because
5247 ERR_clear_error() was missing, meaning that SSL_get_error() would
5248 detect the supposedly ignored error.
5250 Both problems are now fixed.
5253 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5254 (previously it was 1024).
5257 *) Fix for compatibility mode trust settings: ignore trust settings
5258 unless some valid trust or reject settings are present.
5261 *) Fix for blowfish EVP: its a variable length cipher.
5264 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5265 parameters in DSA public key structures and return an error in the
5266 DSA routines if parameters are absent.
5269 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5270 in the current directory if neither $RANDFILE nor $HOME was set.
5271 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5272 caused some confusion to Windows users who haven't defined $HOME.
5273 Thus RAND_file_name() is changed again: e_os.h can define a
5274 DEFAULT_HOME, which will be used if $HOME is not set.
5275 For Windows, we use "C:"; on other platforms, we still require
5276 environment variables.
5278 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5279 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5280 having multiple threads call RAND_poll() concurrently.
5283 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5284 combination of a flag and a thread ID variable.
5285 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5286 flag), *other* threads can enter ssleay_add_bytes without obeying
5287 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5288 that they do not hold after the first thread unsets add_do_not_lock).
5291 *) Change bctest again: '-x' expressions are not available in all
5295 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5297 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5298 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5300 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5301 the default extension for executables, if any. Also, make the perl
5302 scripts that use symlink() to test if it really exists and use "cp"
5303 if it doesn't. All this made OpenSSL compilable and installable in
5307 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5308 If SEQUENCE is length is indefinite just set c->slen to the total
5309 amount of data available.
5310 [Steve Henson, reported by shige@FreeBSD.org]
5311 [This change does not apply to 0.9.7.]
5313 *) Change bctest to avoid here-documents inside command substitution
5314 (workaround for FreeBSD /bin/sh bug).
5315 For compatibility with Ultrix, avoid shell functions (introduced
5316 in the bctest version that searches along $PATH).
5319 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5320 with des_encrypt() defined on some operating systems, like Solaris
5324 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5325 On the Importance of Eliminating Errors in Cryptographic
5326 Computations, J. Cryptology 14 (2001) 2, 101-119,
5327 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5330 *) MIPS assembler BIGNUM division bug fix.
5333 *) Disabled incorrect Alpha assembler code.
5336 *) Fix PKCS#7 decode routines so they correctly update the length
5337 after reading an EOC for the EXPLICIT tag.
5339 [This change does not apply to 0.9.7.]
5341 *) Fix bug in PKCS#12 key generation routines. This was triggered
5342 if a 3DES key was generated with a 0 initial byte. Include
5343 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5344 (but broken) behaviour.
5347 *) Enhance bctest to search for a working bc along $PATH and print
5349 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5351 *) Fix memory leaks in err.c: free err_data string if necessary;
5352 don't write to the wrong index in ERR_set_error_data.
5355 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5359 *) Replace rdtsc with _emit statements for VC++ version 5.
5360 [Jeremy Cooper <jeremy@baymoo.org>]
5362 *) Make it possible to reuse SSLv2 sessions.
5365 *) In copy_email() check for >= 0 as a return value for
5366 X509_NAME_get_index_by_NID() since 0 is a valid index.
5367 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5369 *) Avoid coredump with unsupported or invalid public keys by checking if
5370 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5371 PKCS7_verify() fails with non detached data.
5374 *) Don't use getenv in library functions when run as setuid/setgid.
5375 New function OPENSSL_issetugid().
5378 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5379 due to incorrect handling of multi-threading:
5381 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5383 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5385 3. Count how many times MemCheck_off() has been called so that
5386 nested use can be treated correctly. This also avoids
5387 inband-signalling in the previous code (which relied on the
5388 assumption that thread ID 0 is impossible).
5391 *) Add "-rand" option also to s_client and s_server.
5394 *) Fix CPU detection on Irix 6.x.
5395 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5396 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5398 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5401 [This change does not apply to 0.9.7.]
5403 *) Use the cached encoding of an X509_NAME structure rather than
5404 copying it. This is apparently the reason for the libsafe "errors"
5405 but the code is actually correct.
5408 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5409 Bleichenbacher's DSA attack.
5410 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5411 to be set and top=0 forces the highest bit to be set; top=-1 is new
5412 and leaves the highest bit random.
5413 [Ulf Moeller, Bodo Moeller]
5415 *) In the NCONF_...-based implementations for CONF_... queries
5416 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5417 a temporary CONF structure with the data component set to NULL
5418 (which gives segmentation faults in lh_retrieve).
5419 Instead, use NULL for the CONF pointer in CONF_get_string and
5420 CONF_get_number (which may use environment variables) and directly
5421 return NULL from CONF_get_section.
5424 *) Fix potential buffer overrun for EBCDIC.
5427 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5428 keyUsage if basicConstraints absent for a CA.
5431 *) Make SMIME_write_PKCS7() write mail header values with a format that
5432 is more generally accepted (no spaces before the semicolon), since
5433 some programs can't parse those values properly otherwise. Also make
5434 sure BIO's that break lines after each write do not create invalid
5438 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5439 macros previously used would not encode an empty SEQUENCE OF
5440 and break the signature.
5442 [This change does not apply to 0.9.7.]
5444 *) Zero the premaster secret after deriving the master secret in
5448 *) Add some EVP_add_digest_alias registrations (as found in
5449 OpenSSL_add_all_digests()) to SSL_library_init()
5450 aka OpenSSL_add_ssl_algorithms(). This provides improved
5451 compatibility with peers using X.509 certificates
5452 with unconventional AlgorithmIdentifier OIDs.
5455 *) Fix for Irix with NO_ASM.
5456 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5458 *) ./config script fixes.
5459 [Ulf Moeller, Richard Levitte]
5461 *) Fix 'openssl passwd -1'.
5464 *) Change PKCS12_key_gen_asc() so it can cope with non null
5465 terminated strings whose length is passed in the passlen
5466 parameter, for example from PEM callbacks. This was done
5467 by adding an extra length parameter to asc2uni().
5468 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5470 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5471 call failed, free the DSA structure.
5474 *) Fix to uni2asc() to cope with zero length Unicode strings.
5475 These are present in some PKCS#12 files.
5478 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5479 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5480 when writing a 32767 byte record.
5481 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5483 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5484 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5486 (RSA objects have a reference count access to which is protected
5487 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5488 so they are meant to be shared between threads.)
5489 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5490 "Reddie, Steven" <Steven.Reddie@ca.com>]
5492 *) Fix a deadlock in CRYPTO_mem_leaks().
5495 *) Use better test patterns in bntest.
5498 *) rand_win.c fix for Borland C.
5501 *) BN_rshift bugfix for n == 0.
5504 *) Add a 'bctest' script that checks for some known 'bc' bugs
5505 so that 'make test' does not abort just because 'bc' is broken.
5508 *) Store verify_result within SSL_SESSION also for client side to
5509 avoid potential security hole. (Re-used sessions on the client side
5510 always resulted in verify_result==X509_V_OK, not using the original
5511 result of the server certificate verification.)
5514 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5515 SSL3_RT_APPLICATION_DATA, return 0.
5516 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5520 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5521 releases, have been re-implemented by renaming the previous
5522 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5523 and ssl3_read_internal, respectively, and adding 'peek' parameters
5524 to them. The new ssl[23]_{read,peek} functions are calls to
5525 ssl[23]_read_internal with the 'peek' flag set appropriately.
5526 A 'peek' parameter has also been added to ssl3_read_bytes, which
5527 does the actual work for ssl3_read_internal.
5530 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5531 the method-specific "init()" handler. Also clean up ex_data after
5532 calling the method-specific "finish()" handler. Previously, this was
5533 happening the other way round.
5536 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5537 The previous value, 12, was not always sufficient for BN_mod_exp().
5540 *) Make sure that shared libraries get the internal name engine with
5541 the full version number and not just 0. This should mark the
5542 shared libraries as not backward compatible. Of course, this should
5543 be changed again when we can guarantee backward binary compatibility.
5546 *) Fix typo in get_cert_by_subject() in by_dir.c
5547 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5549 *) Rework the system to generate shared libraries:
5551 - Make note of the expected extension for the shared libraries and
5552 if there is a need for symbolic links from for example libcrypto.so.0
5553 to libcrypto.so.0.9.7. There is extended info in Configure for
5556 - Make as few rebuilds of the shared libraries as possible.
5558 - Still avoid linking the OpenSSL programs with the shared libraries.
5560 - When installing, install the shared libraries separately from the
5564 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5566 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5567 and not in SSL_clear because the latter is also used by the
5568 accept/connect functions; previously, the settings made by
5569 SSL_set_read_ahead would be lost during the handshake.
5570 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5572 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5573 Previously, it would create entries for disableed algorithms no
5577 *) Added several new manual pages for SSL_* function.
5580 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5582 *) In ssl23_get_client_hello, generate an error message when faced
5583 with an initial SSL 3.0/TLS record that is too small to contain the
5584 first two bytes of the ClientHello message, i.e. client_version.
5585 (Note that this is a pathologic case that probably has never happened
5586 in real life.) The previous approach was to use the version number
5587 from the record header as a substitute; but our protocol choice
5588 should not depend on that one because it is not authenticated
5589 by the Finished messages.
5592 *) More robust randomness gathering functions for Windows.
5593 [Jeffrey Altman <jaltman@columbia.edu>]
5595 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5596 not set then we don't setup the error code for issuer check errors
5597 to avoid possibly overwriting other errors which the callback does
5598 handle. If an application does set the flag then we assume it knows
5599 what it is doing and can handle the new informational codes
5603 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5604 a general "ANY" type, as such it should be able to decode anything
5605 including tagged types. However it didn't check the class so it would
5606 wrongly interpret tagged types in the same way as their universal
5607 counterpart and unknown types were just rejected. Changed so that the
5608 tagged and unknown types are handled in the same way as a SEQUENCE:
5609 that is the encoding is stored intact. There is also a new type
5610 "V_ASN1_OTHER" which is used when the class is not universal, in this
5611 case we have no idea what the actual type is so we just lump them all
5615 *) On VMS, stdout may very well lead to a file that is written to
5616 in a record-oriented fashion. That means that every write() will
5617 write a separate record, which will be read separately by the
5618 programs trying to read from it. This can be very confusing.
5620 The solution is to put a BIO filter in the way that will buffer
5621 text until a linefeed is reached, and then write everything a
5622 line at a time, so every record written will be an actual line,
5623 not chunks of lines and not (usually doesn't happen, but I've
5624 seen it once) several lines in one record. BIO_f_linebuffer() is
5627 Currently, it's a VMS-only method, because that's where it has
5628 been tested well enough.
5631 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5632 it can return incorrect results.
5633 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5634 but it was in 0.9.6-beta[12].)
5637 *) Disable the check for content being present when verifying detached
5638 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5639 include zero length content when signing messages.
5642 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5643 BIO_ctrl (for BIO pairs).
5646 *) Add DSO method for VMS.
5649 *) Bug fix: Montgomery multiplication could produce results with the
5653 *) Add RPM specification openssl.spec and modify it to build three
5654 packages. The default package contains applications, application
5655 documentation and run-time libraries. The devel package contains
5656 include files, static libraries and function documentation. The
5657 doc package contains the contents of the doc directory. The original
5658 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5661 *) Add a large number of documentation files for many SSL routines.
5662 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5664 *) Add a configuration entry for Sony News 4.
5665 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5667 *) Don't set the two most significant bits to one when generating a
5668 random number < q in the DSA library.
5671 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5672 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5673 the underlying transport is blocking) if a handshake took place.
5674 (The default behaviour is needed by applications such as s_client
5675 and s_server that use select() to determine when to use SSL_read;
5676 but for applications that know in advance when to expect data, it
5677 just makes things more complicated.)
5680 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5684 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5685 work better on such systems.
5686 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5688 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5689 Update PKCS12_parse() so it copies the friendlyName and the
5690 keyid to the certificates aux info.
5693 *) Fix bug in PKCS7_verify() which caused an infinite loop
5694 if there was more than one signature.
5695 [Sven Uszpelkat <su@celocom.de>]
5697 *) Major change in util/mkdef.pl to include extra information
5698 about each symbol, as well as presentig variables as well
5699 as functions. This change means that there's n more need
5700 to rebuild the .num files when some algorithms are excluded.
5703 *) Allow the verify time to be set by an application,
5704 rather than always using the current time.
5707 *) Phase 2 verify code reorganisation. The certificate
5708 verify code now looks up an issuer certificate by a
5709 number of criteria: subject name, authority key id
5710 and key usage. It also verifies self signed certificates
5711 by the same criteria. The main comparison function is
5712 X509_check_issued() which performs these checks.
5714 Lot of changes were necessary in order to support this
5715 without completely rewriting the lookup code.
5717 Authority and subject key identifier are now cached.
5719 The LHASH 'certs' is X509_STORE has now been replaced
5720 by a STACK_OF(X509_OBJECT). This is mainly because an
5721 LHASH can't store or retrieve multiple objects with
5722 the same hash value.
5724 As a result various functions (which were all internal
5725 use only) have changed to handle the new X509_STORE
5726 structure. This will break anything that messed round
5727 with X509_STORE internally.
5729 The functions X509_STORE_add_cert() now checks for an
5730 exact match, rather than just subject name.
5732 The X509_STORE API doesn't directly support the retrieval
5733 of multiple certificates matching a given criteria, however
5734 this can be worked round by performing a lookup first
5735 (which will fill the cache with candidate certificates)
5736 and then examining the cache for matches. This is probably
5737 the best we can do without throwing out X509_LOOKUP
5738 entirely (maybe later...).
5740 The X509_VERIFY_CTX structure has been enhanced considerably.
5742 All certificate lookup operations now go via a get_issuer()
5743 callback. Although this currently uses an X509_STORE it
5744 can be replaced by custom lookups. This is a simple way
5745 to bypass the X509_STORE hackery necessary to make this
5746 work and makes it possible to use more efficient techniques
5747 in future. A very simple version which uses a simple
5748 STACK for its trusted certificate store is also provided
5749 using X509_STORE_CTX_trusted_stack().
5751 The verify_cb() and verify() callbacks now have equivalents
5752 in the X509_STORE_CTX structure.
5754 X509_STORE_CTX also has a 'flags' field which can be used
5755 to customise the verify behaviour.
5758 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5759 excludes S/MIME capabilities.
5762 *) When a certificate request is read in keep a copy of the
5763 original encoding of the signed data and use it when outputing
5764 again. Signatures then use the original encoding rather than
5765 a decoded, encoded version which may cause problems if the
5766 request is improperly encoded.
5769 *) For consistency with other BIO_puts implementations, call
5770 buffer_write(b, ...) directly in buffer_puts instead of calling
5773 In BIO_puts, increment b->num_write as in BIO_write.
5774 [Peter.Sylvester@EdelWeb.fr]
5776 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5777 BN_zero, we may not return a BIGNUM with an array consisting of
5781 *) Avoid calling abort() from within the library when problems are
5782 detected, except if preprocessor symbols have been defined
5783 (such as REF_CHECK, BN_DEBUG etc.).
5786 *) New openssl application 'rsautl'. This utility can be
5787 used for low level RSA operations. DER public key
5788 BIO/fp routines also added.
5791 *) New Configure entry and patches for compiling on QNX 4.
5792 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5794 *) A demo state-machine implementation was sponsored by
5795 Nuron (http://www.nuron.com/) and is now available in
5796 demos/state_machine.
5799 *) New options added to the 'dgst' utility for signature
5800 generation and verification.
5803 *) Unrecognized PKCS#7 content types are now handled via a
5804 catch all ASN1_TYPE structure. This allows unsupported
5805 types to be stored as a "blob" and an application can
5806 encode and decode it manually.
5809 *) Fix various signed/unsigned issues to make a_strex.c
5811 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5813 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5814 length if passed a buffer. ASN1_INTEGER_to_BN failed
5815 if passed a NULL BN and its argument was negative.
5816 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5818 *) Modification to PKCS#7 encoding routines to output definite
5819 length encoding. Since currently the whole structures are in
5820 memory there's not real point in using indefinite length
5821 constructed encoding. However if OpenSSL is compiled with
5822 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5825 *) Added BIO_vprintf() and BIO_vsnprintf().
5828 *) Added more prefixes to parse for in the the strings written
5829 through a logging bio, to cover all the levels that are available
5830 through syslog. The prefixes are now:
5832 PANIC, EMERG, EMR => LOG_EMERG
5833 ALERT, ALR => LOG_ALERT
5834 CRIT, CRI => LOG_CRIT
5835 ERROR, ERR => LOG_ERR
5836 WARNING, WARN, WAR => LOG_WARNING
5837 NOTICE, NOTE, NOT => LOG_NOTICE
5838 INFO, INF => LOG_INFO
5839 DEBUG, DBG => LOG_DEBUG
5841 and as before, if none of those prefixes are present at the
5842 beginning of the string, LOG_ERR is chosen.
5844 On Win32, the LOG_* levels are mapped according to this:
5846 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5847 LOG_WARNING => EVENTLOG_WARNING_TYPE
5848 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5852 *) Made it possible to reconfigure with just the configuration
5853 argument "reconf" or "reconfigure". The command line arguments
5854 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5855 and are retrieved from there when reconfiguring.
5859 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5861 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5864 *) The obj_dat.pl script was messing up the sorting of object
5865 names. The reason was that it compared the quoted version
5866 of strings as a result "OCSP" > "OCSP Signing" because
5867 " > SPACE. Changed script to store unquoted versions of
5868 names and add quotes on output. It was also omitting some
5869 names from the lookup table if they were given a default
5870 value (that is if SN is missing it is given the same
5871 value as LN and vice versa), these are now added on the
5872 grounds that if an object has a name we should be able to
5873 look it up. Finally added warning output when duplicate
5874 short or long names are found.
5877 *) Changes needed for Tandem NSK.
5878 [Scott Uroff <scott@xypro.com>]
5880 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5881 RSA_padding_check_SSLv23(), special padding was never detected
5882 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5883 version rollback attacks was not effective.
5885 In s23_clnt.c, don't use special rollback-attack detection padding
5886 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5887 client; similarly, in s23_srvr.c, don't do the rollback check if
5888 SSL 2.0 is the only protocol enabled in the server.
5891 *) Make it possible to get hexdumps of unprintable data with 'openssl
5892 asn1parse'. By implication, the functions ASN1_parse_dump() and
5893 BIO_dump_indent() are added.
5896 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5897 these print out strings and name structures based on various
5898 flags including RFC2253 support and proper handling of
5899 multibyte characters. Added options to the 'x509' utility
5900 to allow the various flags to be set.
5903 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5904 Also change the functions X509_cmp_current_time() and
5905 X509_gmtime_adj() work with an ASN1_TIME structure,
5906 this will enable certificates using GeneralizedTime in validity
5907 dates to be checked.
5910 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5911 negative public key encodings) on by default,
5912 NO_NEG_PUBKEY_BUG can be set to disable it.
5915 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5916 content octets. An i2c_ASN1_OBJECT is unnecessary because
5917 the encoding can be trivially obtained from the structure.
5920 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5921 not read locks (CRYPTO_r_[un]lock).
5924 *) A first attempt at creating official support for shared
5925 libraries through configuration. I've kept it so the
5926 default is static libraries only, and the OpenSSL programs
5927 are always statically linked for now, but there are
5928 preparations for dynamic linking in place.
5929 This has been tested on Linux and Tru64.
5932 *) Randomness polling function for Win9x, as described in:
5933 Peter Gutmann, Software Generation of Practically Strong
5937 *) Fix so PRNG is seeded in req if using an already existing
5941 *) New options to smime application. -inform and -outform
5942 allow alternative formats for the S/MIME message including
5943 PEM and DER. The -content option allows the content to be
5944 specified separately. This should allow things like Netscape
5945 form signing output easier to verify.
5948 *) Fix the ASN1 encoding of tags using the 'long form'.
5951 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5952 STRING types. These convert content octets to and from the
5953 underlying type. The actual tag and length octets are
5954 already assumed to have been read in and checked. These
5955 are needed because all other string types have virtually
5956 identical handling apart from the tag. By having versions
5957 of the ASN1 functions that just operate on content octets
5958 IMPLICIT tagging can be handled properly. It also allows
5959 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5960 and ASN1_INTEGER are identical apart from the tag.
5963 *) Change the handling of OID objects as follows:
5965 - New object identifiers are inserted in objects.txt, following
5966 the syntax given in objects.README.
5967 - objects.pl is used to process obj_mac.num and create a new
5969 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5972 This is currently kind of a hack, and the perl code in objects.pl
5973 isn't very elegant, but it works as I intended. The simplest way
5974 to check that it worked correctly is to look in obj_dat.h and
5975 check the array nid_objs and make sure the objects haven't moved
5976 around (this is important!). Additions are OK, as well as
5977 consistent name changes.
5980 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5983 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5984 The given file adds to whatever has already been seeded into the
5985 random pool through the RANDFILE configuration file option or
5986 environment variable, or the default random state file.
5989 *) mkstack.pl now sorts each macro group into lexical order.
5990 Previously the output order depended on the order the files
5991 appeared in the directory, resulting in needless rewriting
5995 *) Patches to make OpenSSL compile under Win32 again. Mostly
5996 work arounds for the VC++ problem that it treats func() as
5997 func(void). Also stripped out the parts of mkdef.pl that
5998 added extra typesafe functions: these no longer exist.
6001 *) Reorganisation of the stack code. The macros are now all
6002 collected in safestack.h . Each macro is defined in terms of
6003 a "stack macro" of the form SKM_<name>(type, a, b). The
6004 DEBUG_SAFESTACK is now handled in terms of function casts,
6005 this has the advantage of retaining type safety without the
6006 use of additional functions. If DEBUG_SAFESTACK is not defined
6007 then the non typesafe macros are used instead. Also modified the
6008 mkstack.pl script to handle the new form. Needs testing to see
6009 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6010 the default if no major problems. Similar behaviour for ASN1_SET_OF
6011 and PKCS12_STACK_OF.
6014 *) When some versions of IIS use the 'NET' form of private key the
6015 key derivation algorithm is different. Normally MD5(password) is
6016 used as a 128 bit RC4 key. In the modified case
6017 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6018 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6019 as the old Netscape_RSA functions except they have an additional
6020 'sgckey' parameter which uses the modified algorithm. Also added
6021 an -sgckey command line option to the rsa utility. Thanks to
6022 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6023 algorithm to openssl-dev.
6026 *) The evp_local.h macros were using 'c.##kname' which resulted in
6027 invalid expansion on some systems (SCO 5.0.5 for example).
6028 Corrected to 'c.kname'.
6029 [Phillip Porch <root@theporch.com>]
6031 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6032 a STACK of email addresses from a certificate or request, these look
6033 in the subject name and the subject alternative name extensions and
6034 omit any duplicate addresses.
6037 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6038 This makes DSA verification about 2 % faster.
6041 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6042 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6043 plus overhead for 1024 bit moduli).
6044 This makes exponentiations about 0.5 % faster for 1024 bit
6045 exponents (as measured by "openssl speed rsa2048").
6048 *) Rename memory handling macros to avoid conflicts with other
6050 Malloc => OPENSSL_malloc
6051 Malloc_locked => OPENSSL_malloc_locked
6052 Realloc => OPENSSL_realloc
6053 Free => OPENSSL_free
6056 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6057 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6060 *) CygWin32 support.
6061 [John Jarvie <jjarvie@newsguy.com>]
6063 *) The type-safe stack code has been rejigged. It is now only compiled
6064 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6065 by default all type-specific stack functions are "#define"d back to
6066 standard stack functions. This results in more streamlined output
6067 but retains the type-safety checking possibilities of the original
6071 *) The STACK code has been cleaned up, and certain type declarations
6072 that didn't make a lot of sense have been brought in line. This has
6073 also involved a cleanup of sorts in safestack.h to more correctly
6074 map type-safe stack functions onto their plain stack counterparts.
6075 This work has also resulted in a variety of "const"ifications of
6076 lots of the code, especially "_cmp" operations which should normally
6077 be prototyped with "const" parameters anyway.
6080 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6081 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6082 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6083 where all of 'md' is used each time the PRNG is used, but 'state'
6084 is used only indexed by a cyclic counter. As entropy may not be
6085 well distributed from the beginning, 'md' is important as a
6086 chaining variable. However, the output function chains only half
6087 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6088 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6089 in all of 'state' being rewritten, with the new values depending
6090 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6093 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6094 the handshake is continued after ssl_verify_cert_chain();
6095 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6096 can lead to 'unexplainable' connection aborts later.
6097 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6099 *) Major EVP API cipher revision.
6100 Add hooks for extra EVP features. This allows various cipher
6101 parameters to be set in the EVP interface. Support added for variable
6102 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6103 setting of RC2 and RC5 parameters.
6105 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6108 Remove lots of duplicated code from the EVP library. For example *every*
6109 cipher init() function handles the 'iv' in the same way according to the
6110 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6111 for CFB and OFB modes they zero ctx->num.
6113 New functionality allows removal of S/MIME code RC2 hack.
6115 Most of the routines have the same form and so can be declared in terms
6118 By shifting this to the top level EVP_CipherInit() it can be removed from
6119 all individual ciphers. If the cipher wants to handle IVs or keys
6120 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6123 Change lots of functions like EVP_EncryptUpdate() to now return a
6124 value: although software versions of the algorithms cannot fail
6125 any installed hardware versions can.
6128 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6129 this option is set, tolerate broken clients that send the negotiated
6130 protocol version number instead of the requested protocol version
6134 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6135 i.e. non-zero for export ciphersuites, zero otherwise.
6136 Previous versions had this flag inverted, inconsistent with
6137 rsa_tmp_cb (..._TMP_RSA_CB).
6138 [Bodo Moeller; problem reported by Amit Chopra]
6140 *) Add missing DSA library text string. Work around for some IIS
6141 key files with invalid SEQUENCE encoding.
6144 *) Add a document (doc/standards.txt) that list all kinds of standards
6145 and so on that are implemented in OpenSSL.
6148 *) Enhance c_rehash script. Old version would mishandle certificates
6149 with the same subject name hash and wouldn't handle CRLs at all.
6150 Added -fingerprint option to crl utility, to support new c_rehash
6154 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6157 *) Fix for SSL server purpose checking. Server checking was
6158 rejecting certificates which had extended key usage present
6159 but no ssl client purpose.
6160 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6162 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6163 is a little unclear about how a blank password is handled.
6164 Since the password in encoded as a BMPString with terminating
6165 double NULL a zero length password would end up as just the
6166 double NULL. However no password at all is different and is
6167 handled differently in the PKCS#12 key generation code. NS
6168 treats a blank password as zero length. MSIE treats it as no
6169 password on export: but it will try both on import. We now do
6170 the same: PKCS12_parse() tries zero length and no password if
6171 the password is set to "" or NULL (NULL is now a valid password:
6172 it wasn't before) as does the pkcs12 application.
6175 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6176 perror when PEM_read_bio_X509_REQ fails, the error message must
6177 be obtained from the error queue.
6180 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6181 it in ERR_remove_state if appropriate, and change ERR_get_state
6182 accordingly to avoid race conditions (this is necessary because
6183 thread_hash is no longer constant once set).
6186 *) Bugfix for linux-elf makefile.one.
6189 *) RSA_get_default_method() will now cause a default
6190 RSA_METHOD to be chosen if one doesn't exist already.
6191 Previously this was only set during a call to RSA_new()
6192 or RSA_new_method(NULL) meaning it was possible for
6193 RSA_get_default_method() to return NULL.
6196 *) Added native name translation to the existing DSO code
6197 that will convert (if the flag to do so is set) filenames
6198 that are sufficiently small and have no path information
6199 into a canonical native form. Eg. "blah" converted to
6200 "libblah.so" or "blah.dll" etc.
6203 *) New function ERR_error_string_n(e, buf, len) which is like
6204 ERR_error_string(e, buf), but writes at most 'len' bytes
6205 including the 0 terminator. For ERR_error_string_n, 'buf'
6207 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6209 *) CONF library reworked to become more general. A new CONF
6210 configuration file reader "class" is implemented as well as a
6211 new functions (NCONF_*, for "New CONF") to handle it. The now
6212 old CONF_* functions are still there, but are reimplemented to
6213 work in terms of the new functions. Also, a set of functions
6214 to handle the internal storage of the configuration data is
6215 provided to make it easier to write new configuration file
6216 reader "classes" (I can definitely see something reading a
6217 configuration file in XML format, for example), called _CONF_*,
6218 or "the configuration storage API"...
6220 The new configuration file reading functions are:
6222 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6223 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6225 NCONF_default, NCONF_WIN32
6227 NCONF_dump_fp, NCONF_dump_bio
6229 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6230 NCONF_new creates a new CONF object. This works in the same way
6231 as other interfaces in OpenSSL, like the BIO interface.
6232 NCONF_dump_* dump the internal storage of the configuration file,
6233 which is useful for debugging. All other functions take the same
6234 arguments as the old CONF_* functions wth the exception of the
6235 first that must be a `CONF *' instead of a `LHASH *'.
6237 To make it easer to use the new classes with the old CONF_* functions,
6238 the function CONF_set_default_method is provided.
6241 *) Add '-tls1' option to 'openssl ciphers', which was already
6242 mentioned in the documentation but had not been implemented.
6243 (This option is not yet really useful because even the additional
6244 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6247 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6248 OpenSSL-based applications) load shared libraries and bind to
6249 them in a portable way.
6250 [Geoff Thorpe, with contributions from Richard Levitte]
6252 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6254 *) Make sure _lrotl and _lrotr are only used with MSVC.
6256 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6257 (the default implementation of RAND_status).
6259 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6260 to '-clrext' (= clear extensions), as intended and documented.
6261 [Bodo Moeller; inconsistency pointed out by Michael Attili
6264 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6265 was larger than the MD block size.
6266 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6268 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6269 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6270 using the passed key: if the passed key was a private key the result
6271 of X509_print(), for example, would be to print out all the private key
6275 *) des_quad_cksum() byte order bug fix.
6276 [Ulf Möller, using the problem description in krb4-0.9.7, where
6277 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6279 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6281 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6283 *) For easily testing in shell scripts whether some command
6284 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6285 returns with exit code 0 iff no command of the given name is available.
6286 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6287 the output goes to stdout and nothing is printed to stderr.
6288 Additional arguments are always ignored.
6290 Since for each cipher there is a command of the same name,
6291 the 'no-cipher' compilation switches can be tested this way.
6293 ('openssl no-XXX' is not able to detect pseudo-commands such
6294 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6297 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6300 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6301 is set; it will be thrown away anyway because each handshake creates
6303 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6304 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6305 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6306 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6309 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6310 'Q' and 'R' lose their special meanings (quit/renegotiate).
6311 This is part of what -quiet does; unlike -quiet, -ign_eof
6312 does not suppress any output.
6315 *) Add compatibility options to the purpose and trust code. The
6316 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6317 accepts a certificate or CA, this was the previous behaviour,
6318 with all the associated security issues.
6320 X509_TRUST_COMPAT is the old trust behaviour: only and
6321 automatically trust self signed roots in certificate store. A
6322 new trust setting X509_TRUST_DEFAULT is used to specify that
6323 a purpose has no associated trust setting and it should instead
6324 use the value in the default purpose.
6327 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6328 and fix a memory leak.
6331 *) In util/mkerr.pl (which implements 'make errors'), preserve
6332 reason strings from the previous version of the .c file, as
6333 the default to have only downcase letters (and digits) in
6334 automatically generated reasons codes is not always appropriate.
6337 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6338 using strerror. Previously, ERR_reason_error_string() returned
6339 library names as reason strings for SYSerr; but SYSerr is a special
6340 case where small numbers are errno values, not library numbers.
6343 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6344 converts DSA parameters into DH parameters. (When creating parameters,
6345 DSA_generate_parameters is used.)
6348 *) Include 'length' (recommended exponent length) in C code generated
6349 by 'openssl dhparam -C'.
6352 *) The second argument to set_label in perlasm was already being used
6353 so couldn't be used as a "file scope" flag. Moved to third argument
6357 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6358 instead of RAND_bytes for encryption IVs and salts.
6361 *) Include RAND_status() into RAND_METHOD instead of implementing
6362 it only for md_rand.c Otherwise replacing the PRNG by calling
6363 RAND_set_rand_method would be impossible.
6366 *) Don't let DSA_generate_key() enter an infinite loop if the random
6367 number generation fails.
6370 *) New 'rand' application for creating pseudo-random output.
6373 *) Added configuration support for Linux/IA64
6374 [Rolf Haberrecker <rolf@suse.de>]
6376 *) Assembler module support for Mingw32.
6379 *) Shared library support for HPUX (in shlib/).
6380 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6382 *) Shared library support for Solaris gcc.
6383 [Lutz Behnke <behnke@trustcenter.de>]
6385 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6387 *) PKCS7_encrypt() was adding text MIME headers twice because they
6388 were added manually and by SMIME_crlf_copy().
6391 *) In bntest.c don't call BN_rand with zero bits argument.
6392 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6394 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6395 case was implemented. This caused BN_div_recp() to fail occasionally.
6398 *) Add an optional second argument to the set_label() in the perl
6399 assembly language builder. If this argument exists and is set
6400 to 1 it signals that the assembler should use a symbol whose
6401 scope is the entire file, not just the current function. This
6402 is needed with MASM which uses the format label:: for this scope.
6403 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6405 *) Change the ASN1 types so they are typedefs by default. Before
6406 almost all types were #define'd to ASN1_STRING which was causing
6407 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6411 *) Change names of new functions to the new get1/get0 naming
6412 convention: After 'get1', the caller owns a reference count
6413 and has to call ..._free; 'get0' returns a pointer to some
6414 data structure without incrementing reference counters.
6415 (Some of the existing 'get' functions increment a reference
6416 counter, some don't.)
6417 Similarly, 'set1' and 'add1' functions increase reference
6418 counters or duplicate objects.
6421 *) Allow for the possibility of temp RSA key generation failure:
6422 the code used to assume it always worked and crashed on failure.
6425 *) Fix potential buffer overrun problem in BIO_printf().
6426 [Ulf Möller, using public domain code by Patrick Powell; problem
6427 pointed out by David Sacerdote <das33@cornell.edu>]
6429 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6430 RAND_egd() and RAND_status(). In the command line application,
6431 the EGD socket can be specified like a seed file using RANDFILE
6435 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6436 Some CAs (e.g. Verisign) distribute certificates in this form.
6439 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6440 list to exclude them. This means that no special compilation option
6441 is needed to use anonymous DH: it just needs to be included in the
6445 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6446 EVP_MD_type. The old functionality is available in a new macro called
6447 EVP_MD_md(). Change code that uses it and update docs.
6450 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6451 where the 'void *' argument is replaced by a function pointer argument.
6452 Previously 'void *' was abused to point to functions, which works on
6453 many platforms, but is not correct. As these functions are usually
6454 called by macros defined in OpenSSL header files, most source code
6455 should work without changes.
6458 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6459 sections with information on -D... compiler switches used for
6460 compiling the library so that applications can see them. To enable
6461 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6462 must be defined. E.g.,
6463 #define OPENSSL_ALGORITHM_DEFINES
6464 #include <openssl/opensslconf.h>
6465 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6466 [Richard Levitte, Ulf and Bodo Möller]
6468 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6472 *) Change the 'other' type in certificate aux info to a STACK_OF
6473 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6474 the required ASN1 format: arbitrary types determined by an OID.
6477 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6478 argument to 'req'. This is not because the function is newer or
6479 better than others it just uses the work 'NEW' in the certificate
6480 request header lines. Some software needs this.
6483 *) Reorganise password command line arguments: now passwords can be
6484 obtained from various sources. Delete the PEM_cb function and make
6485 it the default behaviour: i.e. if the callback is NULL and the
6486 usrdata argument is not NULL interpret it as a null terminated pass
6487 phrase. If usrdata and the callback are NULL then the pass phrase
6488 is prompted for as usual.
6491 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6492 the support is automatically enabled. The resulting binaries will
6493 autodetect the card and use it if present.
6494 [Ben Laurie and Compaq Inc.]
6496 *) Work around for Netscape hang bug. This sends certificate request
6497 and server done in one record. Since this is perfectly legal in the
6498 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6499 the bugs/SSLv3 entry for more info.
6502 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6505 *) Add -rand argument to smime and pkcs12 applications and read/write
6509 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6512 *) Add command line password options to the remaining applications.
6515 *) Bug fix for BN_div_recp() for numerators with an even number of
6519 *) More tests in bntest.c, and changed test_bn output.
6522 *) ./config recognizes MacOS X now.
6525 *) Bug fix for BN_div() when the first words of num and divsor are
6526 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6529 *) Add support for various broken PKCS#8 formats, and command line
6530 options to produce them.
6533 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6534 get temporary BIGNUMs from a BN_CTX.
6537 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6541 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6542 include a #define from the old name to the new. The original intent
6543 was that statically linked binaries could for example just call
6544 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6545 link with digests. This never worked becayse SSLeay_add_all_digests()
6546 and SSLeay_add_all_ciphers() were in the same source file so calling
6547 one would link with the other. They are now in separate source files.
6550 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6553 *) Use a less unusual form of the Miller-Rabin primality test (it used
6554 a binary algorithm for exponentiation integrated into the Miller-Rabin
6555 loop, our standard modexp algorithms are faster).
6558 *) Support for the EBCDIC character set completed.
6559 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6561 *) Source code cleanups: use const where appropriate, eliminate casts,
6562 use void * instead of char * in lhash.
6565 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6566 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6567 this the server could overwrite ephemeral keys that the client
6571 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6572 using 50 iterations of the Rabin-Miller test.
6574 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6575 iterations of the Rabin-Miller test as required by the appendix
6576 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6577 As BN_is_prime_fasttest includes trial division, DSA parameter
6578 generation becomes much faster.
6580 This implies a change for the callback functions in DSA_is_prime
6581 and DSA_generate_parameters: The callback function is called once
6582 for each positive witness in the Rabin-Miller test, not just
6583 occasionally in the inner loop; and the parameters to the
6584 callback function now provide an iteration count for the outer
6585 loop rather than for the current invocation of the inner loop.
6586 DSA_generate_parameters additionally can call the callback
6587 function with an 'iteration count' of -1, meaning that a
6588 candidate has passed the trial division test (when q is generated
6589 from an application-provided seed, trial division is skipped).
6592 *) New function BN_is_prime_fasttest that optionally does trial
6593 division before starting the Rabin-Miller test and has
6594 an additional BN_CTX * argument (whereas BN_is_prime always
6595 has to allocate at least one BN_CTX).
6596 'callback(1, -1, cb_arg)' is called when a number has passed the
6597 trial division stage.
6600 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6604 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6607 *) New function BN_pseudo_rand().
6610 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6611 bignum version of BN_from_montgomery() with the working code from
6612 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6616 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6617 made it impossible to use the same SSL_SESSION data structure in
6618 SSL2 clients in multiple threads.
6621 *) The return value of RAND_load_file() no longer counts bytes obtained
6622 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6623 to seed the PRNG (previously an explicit byte count was required).
6624 [Ulf Möller, Bodo Möller]
6626 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6627 used (char *) instead of (void *) and had casts all over the place.
6630 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6633 *) Retain source code compatibility for BN_prime_checks macro:
6634 BN_is_prime(..., BN_prime_checks, ...) now uses
6635 BN_prime_checks_for_size to determine the appropriate number of
6636 Rabin-Miller iterations.
6639 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6640 DH_CHECK_P_NOT_SAFE_PRIME.
6641 (Check if this is true? OpenPGP calls them "strong".)
6644 *) Merge the functionality of "dh" and "gendh" programs into a new program
6645 "dhparam". The old programs are retained for now but will handle DH keys
6646 (instead of parameters) in future.
6649 *) Make the ciphers, s_server and s_client programs check the return values
6650 when a new cipher list is set.
6653 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6654 ciphers. Before when the 56bit ciphers were enabled the sorting was
6657 The syntax for the cipher sorting has been extended to support sorting by
6658 cipher-strength (using the strength_bits hard coded in the tables).
6659 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6661 Fix a bug in the cipher-command parser: when supplying a cipher command
6662 string with an "undefined" symbol (neither command nor alphanumeric
6663 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6664 an error is flagged.
6666 Due to the strength-sorting extension, the code of the
6667 ssl_create_cipher_list() function was completely rearranged. I hope that
6668 the readability was also increased :-)
6669 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6671 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6672 for the first serial number and places 2 in the serial number file. This
6673 avoids problems when the root CA is created with serial number zero and
6674 the first user certificate has the same issuer name and serial number
6678 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6679 the new code. Add documentation for this stuff.
6682 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6683 X509_*() to X509at_*() on the grounds that they don't handle X509
6684 structures and behave in an analagous way to the X509v3 functions:
6685 they shouldn't be called directly but wrapper functions should be used
6688 So we also now have some wrapper functions that call the X509at functions
6689 when passed certificate requests. (TO DO: similar things can be done with
6690 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6691 things. Some of these need some d2i or i2d and print functionality
6692 because they handle more complex structures.)
6695 *) Add missing #ifndefs that caused missing symbols when building libssl
6696 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6697 NO_RSA in ssl/s2*.c.
6698 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6700 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6701 has a return value which indicates the quality of the random data
6702 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6703 error queue. New function RAND_pseudo_bytes() generates output that is
6704 guaranteed to be unique but not unpredictable. RAND_add is like
6705 RAND_seed, but takes an extra argument for an entropy estimate
6706 (RAND_seed always assumes full entropy).
6709 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6710 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6711 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6712 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6713 false-positive rate of at most 2^-80 for random input.
6716 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6719 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6720 in the 0.9.5 release), this returns the chain
6721 from an X509_CTX structure with a dup of the stack and all
6722 the X509 reference counts upped: so the stack will exist
6723 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6726 Also make SSL_SESSION_print() print out the verify return
6730 *) Add manpage for the pkcs12 command. Also change the default
6731 behaviour so MAC iteration counts are used unless the new
6732 -nomaciter option is used. This improves file security and
6733 only older versions of MSIE (4.0 for example) need it.
6736 *) Honor the no-xxx Configure options when creating .DEF files.
6739 *) Add PKCS#10 attributes to field table: challengePassword,
6740 unstructuredName and unstructuredAddress. These are taken from
6741 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6742 international characters are used.
6744 More changes to X509_ATTRIBUTE code: allow the setting of types
6745 based on strings. Remove the 'loc' parameter when adding
6746 attributes because these will be a SET OF encoding which is sorted
6750 *) Initial changes to the 'req' utility to allow request generation
6751 automation. This will allow an application to just generate a template
6752 file containing all the field values and have req construct the
6755 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6756 used all over the place including certificate requests and PKCS#7
6757 structures. They are currently handled manually where necessary with
6758 some primitive wrappers for PKCS#7. The new functions behave in a
6759 manner analogous to the X509 extension functions: they allow
6760 attributes to be looked up by NID and added.
6762 Later something similar to the X509V3 code would be desirable to
6763 automatically handle the encoding, decoding and printing of the
6764 more complex types. The string types like challengePassword can
6765 be handled by the string table functions.
6767 Also modified the multi byte string table handling. Now there is
6768 a 'global mask' which masks out certain types. The table itself
6769 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6770 is useful when for example there is only one permissible type
6771 (as in countryName) and using the mask might result in no valid
6775 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6776 SSL_get_peer_finished to allow applications to obtain the latest
6777 Finished messages sent to the peer or expected from the peer,
6778 respectively. (SSL_get_peer_finished is usually the Finished message
6779 actually received from the peer, otherwise the protocol will be aborted.)
6781 As the Finished message are message digests of the complete handshake
6782 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6783 be used for external authentication procedures when the authentication
6784 provided by SSL/TLS is not desired or is not enough.
6787 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6788 the host supports BWX extension and if Compaq C is present on the
6789 $PATH. Just exploiting of the BWX extension results in 20-30%
6790 performance kick for some algorithms, e.g. DES and RC4 to mention
6791 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6795 *) Add support for MS "fast SGC". This is arguably a violation of the
6796 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6797 weak crypto and after checking the certificate is SGC a second one
6798 with strong crypto. MS SGC stops the first handshake after receiving
6799 the server certificate message and sends a second client hello. Since
6800 a server will typically do all the time consuming operations before
6801 expecting any further messages from the client (server key exchange
6802 is the most expensive) there is little difference between the two.
6804 To get OpenSSL to support MS SGC we have to permit a second client
6805 hello message after we have sent server done. In addition we have to
6806 reset the MAC if we do get this second client hello.
6809 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6810 if a DER encoded private key is RSA or DSA traditional format. Changed
6811 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6812 format DER encoded private key. Newer code should use PKCS#8 format which
6813 has the key type encoded in the ASN1 structure. Added DER private key
6814 support to pkcs8 application.
6817 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6818 ciphersuites has been selected (as required by the SSL 3/TLS 1
6819 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6820 is set, we interpret this as a request to violate the specification
6821 (the worst that can happen is a handshake failure, and 'correct'
6822 behaviour would result in a handshake failure anyway).
6825 *) In SSL_CTX_add_session, take into account that there might be multiple
6826 SSL_SESSION structures with the same session ID (e.g. when two threads
6827 concurrently obtain them from an external cache).
6828 The internal cache can handle only one SSL_SESSION with a given ID,
6829 so if there's a conflict, we now throw out the old one to achieve
6833 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6834 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6835 some routines that use cipher OIDs: some ciphers do not have OIDs
6836 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6840 *) Simplify the trust setting structure and code. Now we just have
6841 two sequences of OIDs for trusted and rejected settings. These will
6842 typically have values the same as the extended key usage extension
6843 and any application specific purposes.
6845 The trust checking code now has a default behaviour: it will just
6846 check for an object with the same NID as the passed id. Functions can
6847 be provided to override either the default behaviour or the behaviour
6848 for a given id. SSL client, server and email already have functions
6849 in place for compatibility: they check the NID and also return "trusted"
6850 if the certificate is self signed.
6853 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6854 traditional format into an EVP_PKEY structure.
6857 *) Add a password callback function PEM_cb() which either prompts for
6858 a password if usr_data is NULL or otherwise assumes it is a null
6859 terminated password. Allow passwords to be passed on command line
6860 environment or config files in a few more utilities.
6863 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6864 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6865 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6866 Update documentation.
6869 *) Support for ASN1 "NULL" type. This could be handled before by using
6870 ASN1_TYPE but there wasn't any function that would try to read a NULL
6871 and produce an error if it couldn't. For compatibility we also have
6872 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6873 don't allocate anything because they don't need to.
6876 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6878 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6880 *) Rebuild of the memory allocation routines used by OpenSSL code and
6881 possibly others as well. The purpose is to make an interface that
6882 provide hooks so anyone can build a separate set of allocation and
6883 deallocation routines to be used by OpenSSL, for example memory
6884 pool implementations, or something else, which was previously hard
6885 since Malloc(), Realloc() and Free() were defined as macros having
6886 the values malloc, realloc and free, respectively (except for Win32
6887 compilations). The same is provided for memory debugging code.
6888 OpenSSL already comes with functionality to find memory leaks, but
6889 this gives people a chance to debug other memory problems.
6891 With these changes, a new set of functions and macros have appeared:
6893 CRYPTO_set_mem_debug_functions() [F]
6894 CRYPTO_get_mem_debug_functions() [F]
6895 CRYPTO_dbg_set_options() [F]
6896 CRYPTO_dbg_get_options() [F]
6897 CRYPTO_malloc_debug_init() [M]
6899 The memory debug functions are NULL by default, unless the library
6900 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6901 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6902 gives the standard debugging functions that come with OpenSSL) or
6903 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6904 provided by the library user) must be used. When the standard
6905 debugging functions are used, CRYPTO_dbg_set_options can be used to
6906 request additional information:
6907 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6908 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6910 Also, things like CRYPTO_set_mem_functions will always give the
6911 expected result (the new set of functions is used for allocation
6912 and deallocation) at all times, regardless of platform and compiler
6915 To finish it up, some functions that were never use in any other
6916 way than through macros have a new API and new semantic:
6919 CRYPTO_dbg_realloc()
6922 All macros of value have retained their old syntax.
6923 [Richard Levitte and Bodo Moeller]
6925 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6926 ordering of SMIMECapabilities wasn't in "strength order" and there
6927 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6931 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6932 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6933 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6935 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6936 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6937 functionality to handle multipart/signed properly) and a utility
6938 called 'smime' to call all this stuff. This is based on code I
6939 originally wrote for Celo who have kindly allowed it to be
6940 included in OpenSSL.
6943 *) Add variants des_set_key_checked and des_set_key_unchecked of
6944 des_set_key (aka des_key_sched). Global variable des_check_key
6945 decides which of these is called by des_set_key; this way
6946 des_check_key behaves as it always did, but applications and
6947 the library itself, which was buggy for des_check_key == 1,
6948 have a cleaner way to pick the version they need.
6951 *) New function PKCS12_newpass() which changes the password of a
6955 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6956 dynamic mix. In both cases the ids can be used as an index into the
6957 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6958 functions so they accept a list of the field values and the
6959 application doesn't need to directly manipulate the X509_TRUST
6963 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6967 *) Modify the way the V3 extension code looks up extensions. This now
6968 works in a similar way to the object code: we have some "standard"
6969 extensions in a static table which is searched with OBJ_bsearch()
6970 and the application can add dynamic ones if needed. The file
6971 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6972 updated whenever a new extension is added to the core code and kept
6973 in ext_nid order. There is a simple program 'tabtest.c' which checks
6974 this. New extensions are not added too often so this file can readily
6975 be maintained manually.
6977 There are two big advantages in doing things this way. The extensions
6978 can be looked up immediately and no longer need to be "added" using
6979 X509V3_add_standard_extensions(): this function now does nothing.
6980 [Side note: I get *lots* of email saying the extension code doesn't
6981 work because people forget to call this function]
6982 Also no dynamic allocation is done unless new extensions are added:
6983 so if we don't add custom extensions there is no need to call
6984 X509V3_EXT_cleanup().
6987 *) Modify enc utility's salting as follows: make salting the default. Add a
6988 magic header, so unsalted files fail gracefully instead of just decrypting
6989 to garbage. This is because not salting is a big security hole, so people
6990 should be discouraged from doing it.
6993 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6994 digest to be passed on the command line but it only used this
6995 parameter when signing a certificate. Modified so all relevant
6996 operations are affected by the digest parameter including the
6997 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6998 DSA key was used because it didn't fix the digest.
7001 *) Initial certificate chain verify code. Currently tests the untrusted
7002 certificates for consistency with the verify purpose (which is set
7003 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7005 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7006 this is because it will reject chains with invalid extensions whereas
7007 every previous version of OpenSSL and SSLeay made no checks at all.
7009 Trust code: checks the root CA for the relevant trust settings. Trust
7010 settings have an initial value consistent with the verify purpose: e.g.
7011 if the verify purpose is for SSL client use it expects the CA to be
7012 trusted for SSL client use. However the default value can be changed to
7013 permit custom trust settings: one example of this would be to only trust
7014 certificates from a specific "secure" set of CAs.
7016 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7017 which should be used for version portability: especially since the
7018 verify structure is likely to change more often now.
7020 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7021 to set them. If not set then assume SSL clients will verify SSL servers
7024 Two new options to the verify program: -untrusted allows a set of
7025 untrusted certificates to be passed in and -purpose which sets the
7026 intended purpose of the certificate. If a purpose is set then the
7027 new chain verify code is used to check extension consistency.
7030 *) Support for the authority information access extension.
7033 *) Modify RSA and DSA PEM read routines to transparently handle
7034 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7035 public keys in a format compatible with certificate
7036 SubjectPublicKeyInfo structures. Unfortunately there were already
7037 functions called *_PublicKey_* which used various odd formats so
7038 these are retained for compatibility: however the DSA variants were
7039 never in a public release so they have been deleted. Changed dsa/rsa
7040 utilities to handle the new format: note no releases ever handled public
7041 keys so we should be OK.
7043 The primary motivation for this change is to avoid the same fiasco
7044 that dogs private keys: there are several incompatible private key
7045 formats some of which are standard and some OpenSSL specific and
7046 require various evil hacks to allow partial transparent handling and
7047 even then it doesn't work with DER formats. Given the option anything
7048 other than PKCS#8 should be dumped: but the other formats have to
7049 stay in the name of compatibility.
7051 With public keys and the benefit of hindsight one standard format
7052 is used which works with EVP_PKEY, RSA or DSA structures: though
7053 it clearly returns an error if you try to read the wrong kind of key.
7055 Added a -pubkey option to the 'x509' utility to output the public key.
7056 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7057 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7058 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7059 that do the same as the EVP_PKEY_assign_*() except they up the
7060 reference count of the added key (they don't "swallow" the
7064 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7065 CRLs would fail if the file contained no certificates or no CRLs:
7066 added a new function to read in both types and return the number
7067 read: this means that if none are read it will be an error. The
7068 DER versions of the certificate and CRL reader would always fail
7069 because it isn't possible to mix certificates and CRLs in DER format
7070 without choking one or the other routine. Changed this to just read
7071 a certificate: this is the best we can do. Also modified the code
7072 in apps/verify.c to take notice of return codes: it was previously
7073 attempting to read in certificates from NULL pointers and ignoring
7074 any errors: this is one reason why the cert and CRL reader seemed
7075 to work. It doesn't check return codes from the default certificate
7076 routines: these may well fail if the certificates aren't installed.
7079 *) Code to support otherName option in GeneralName.
7082 *) First update to verify code. Change the verify utility
7083 so it warns if it is passed a self signed certificate:
7084 for consistency with the normal behaviour. X509_verify
7085 has been modified to it will now verify a self signed
7086 certificate if *exactly* the same certificate appears
7087 in the store: it was previously impossible to trust a
7088 single self signed certificate. This means that:
7089 openssl verify ss.pem
7090 now gives a warning about a self signed certificate but
7091 openssl verify -CAfile ss.pem ss.pem
7095 *) For servers, store verify_result in SSL_SESSION data structure
7096 (and add it to external session representation).
7097 This is needed when client certificate verifications fails,
7098 but an application-provided verification callback (set by
7099 SSL_CTX_set_cert_verify_callback) allows accepting the session
7100 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7101 but returns 1): When the session is reused, we have to set
7102 ssl->verify_result to the appropriate error code to avoid
7104 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7106 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7107 case in PKCS7_dataInit() where the signed PKCS7 structure
7108 didn't contain any existing data because it was being created.
7109 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7111 *) Add a salt to the key derivation routines in enc.c. This
7112 forms the first 8 bytes of the encrypted file. Also add a
7113 -S option to allow a salt to be input on the command line.
7116 *) New function X509_cmp(). Oddly enough there wasn't a function
7117 to compare two certificates. We do this by working out the SHA1
7118 hash and comparing that. X509_cmp() will be needed by the trust
7122 *) SSL_get1_session() is like SSL_get_session(), but increments
7123 the reference count in the SSL_SESSION returned.
7124 [Geoff Thorpe <geoff@eu.c2.net>]
7126 *) Fix for 'req': it was adding a null to request attributes.
7127 Also change the X509_LOOKUP and X509_INFO code to handle
7128 certificate auxiliary information.
7131 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7135 *) Add the possibility to add extra information to the memory leak
7136 detecting output, to form tracebacks, showing from where each
7137 allocation was originated: CRYPTO_push_info("constant string") adds
7138 the string plus current file name and line number to a per-thread
7139 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7140 is like calling CYRPTO_pop_info() until the stack is empty.
7141 Also updated memory leak detection code to be multi-thread-safe.
7144 *) Add options -text and -noout to pkcs7 utility and delete the
7145 encryption options which never did anything. Update docs.
7148 *) Add options to some of the utilities to allow the pass phrase
7149 to be included on either the command line (not recommended on
7150 OSes like Unix) or read from the environment. Update the
7151 manpages and fix a few bugs.
7154 *) Add a few manpages for some of the openssl commands.
7157 *) Fix the -revoke option in ca. It was freeing up memory twice,
7158 leaking and not finding already revoked certificates.
7161 *) Extensive changes to support certificate auxiliary information.
7162 This involves the use of X509_CERT_AUX structure and X509_AUX
7163 functions. An X509_AUX function such as PEM_read_X509_AUX()
7164 can still read in a certificate file in the usual way but it
7165 will also read in any additional "auxiliary information". By
7166 doing things this way a fair degree of compatibility can be
7167 retained: existing certificates can have this information added
7168 using the new 'x509' options.
7170 Current auxiliary information includes an "alias" and some trust
7171 settings. The trust settings will ultimately be used in enhanced
7172 certificate chain verification routines: currently a certificate
7173 can only be trusted if it is self signed and then it is trusted
7177 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7178 The problem was that one of the replacement routines had not been working
7179 since SSLeay releases. For now the offending routine has been replaced
7180 with non-optimised assembler. Even so, this now gives around 95%
7181 performance improvement for 1024 bit RSA signs.
7184 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7185 handling. Most clients have the effective key size in bits equal to
7186 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7187 A few however don't do this and instead use the size of the decrypted key
7188 to determine the RC2 key length and the AlgorithmIdentifier to determine
7189 the effective key length. In this case the effective key length can still
7190 be 40 bits but the key length can be 168 bits for example. This is fixed
7191 by manually forcing an RC2 key into the EVP_PKEY structure because the
7192 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7193 the key length and effective key length are equal.
7196 *) Add a bunch of functions that should simplify the creation of
7197 X509_NAME structures. Now you should be able to do:
7198 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7199 and have it automatically work out the correct field type and fill in
7200 the structures. The more adventurous can try:
7201 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7202 and it will (hopefully) work out the correct multibyte encoding.
7205 *) Change the 'req' utility to use the new field handling and multibyte
7206 copy routines. Before the DN field creation was handled in an ad hoc
7207 way in req, ca, and x509 which was rather broken and didn't support
7208 BMPStrings or UTF8Strings. Since some software doesn't implement
7209 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7210 using the dirstring_type option. See the new comment in the default
7211 openssl.cnf for more info.
7214 *) Make crypto/rand/md_rand.c more robust:
7215 - Assure unique random numbers after fork().
7216 - Make sure that concurrent threads access the global counter and
7217 md serializably so that we never lose entropy in them
7218 or use exactly the same state in multiple threads.
7219 Access to the large state is not always serializable because
7220 the additional locking could be a performance killer, and
7221 md should be large enough anyway.
7224 *) New file apps/app_rand.c with commonly needed functionality
7225 for handling the random seed file.
7227 Use the random seed file in some applications that previously did not:
7229 dsaparam -genkey (which also ignored its '-rand' option),
7232 x509 (when signing).
7233 Except on systems with /dev/urandom, it is crucial to have a random
7234 seed file at least for key creation, DSA signing, and for DH exchanges;
7235 for RSA signatures we could do without one.
7237 gendh and gendsa (unlike genrsa) used to read only the first byte
7238 of each file listed in the '-rand' option. The function as previously
7239 found in genrsa is now in app_rand.c and is used by all programs
7240 that support '-rand'.
7243 *) In RAND_write_file, use mode 0600 for creating files;
7244 don't just chmod when it may be too late.
7247 *) Report an error from X509_STORE_load_locations
7248 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7251 *) New function ASN1_mbstring_copy() this copies a string in either
7252 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7253 into an ASN1_STRING type. A mask of permissible types is passed
7254 and it chooses the "minimal" type to use or an error if not type
7258 *) Add function equivalents to the various macros in asn1.h. The old
7259 macros are retained with an M_ prefix. Code inside the library can
7260 use the M_ macros. External code (including the openssl utility)
7261 should *NOT* in order to be "shared library friendly".
7264 *) Add various functions that can check a certificate's extensions
7265 to see if it usable for various purposes such as SSL client,
7266 server or S/MIME and CAs of these types. This is currently
7267 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7268 verification. Also added a -purpose flag to x509 utility to
7269 print out all the purposes.
7272 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7276 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7277 for, obtain and decode and extension and obtain its critical flag.
7278 This allows all the necessary extension code to be handled in a
7279 single function call.
7282 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7283 platforms. See crypto/rc4/rc4_enc.c for further details.
7286 *) New -noout option to asn1parse. This causes no output to be produced
7287 its main use is when combined with -strparse and -out to extract data
7288 from a file (which may not be in ASN.1 format).
7291 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7292 when producing the local key id.
7293 [Richard Levitte <levitte@stacken.kth.se>]
7295 *) New option -dhparam in s_server. This allows a DH parameter file to be
7296 stated explicitly. If it is not stated then it tries the first server
7297 certificate file. The previous behaviour hard coded the filename
7301 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7302 a public key to be input or output. For example:
7303 openssl rsa -in key.pem -pubout -out pubkey.pem
7304 Also added necessary DSA public key functions to handle this.
7307 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7308 in the message. This was handled by allowing
7309 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7310 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7312 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7313 to the end of the strings whereas this didn't. This would cause problems
7314 if strings read with d2i_ASN1_bytes() were later modified.
7315 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7317 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7318 data and it contains EOF it will end up returning an error. This is
7319 caused by input 46 bytes long. The cause is due to the way base64
7320 BIOs find the start of base64 encoded data. They do this by trying a
7321 trial decode on each line until they find one that works. When they
7322 do a flag is set and it starts again knowing it can pass all the
7323 data directly through the decoder. Unfortunately it doesn't reset
7324 the context it uses. This means that if EOF is reached an attempt
7325 is made to pass two EOFs through the context and this causes the
7326 resulting error. This can also cause other problems as well. As is
7327 usual with these problems it takes *ages* to find and the fix is
7328 trivial: move one line.
7329 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7331 *) Ugly workaround to get s_client and s_server working under Windows. The
7332 old code wouldn't work because it needed to select() on sockets and the
7333 tty (for keypresses and to see if data could be written). Win32 only
7334 supports select() on sockets so we select() with a 1s timeout on the
7335 sockets and then see if any characters are waiting to be read, if none
7336 are present then we retry, we also assume we can always write data to
7337 the tty. This isn't nice because the code then blocks until we've
7338 received a complete line of data and it is effectively polling the
7339 keyboard at 1s intervals: however it's quite a bit better than not
7340 working at all :-) A dedicated Windows application might handle this
7341 with an event loop for example.
7344 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7345 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7346 will be called when RSA_sign() and RSA_verify() are used. This is useful
7347 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7348 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7349 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7350 This necessitated the support of an extra signature type NID_md5_sha1
7351 for SSL signatures and modifications to the SSL library to use it instead
7352 of calling RSA_public_decrypt() and RSA_private_encrypt().
7355 *) Add new -verify -CAfile and -CApath options to the crl program, these
7356 will lookup a CRL issuers certificate and verify the signature in a
7357 similar way to the verify program. Tidy up the crl program so it
7358 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7359 less strict. It will now permit CRL extensions even if it is not
7360 a V2 CRL: this will allow it to tolerate some broken CRLs.
7363 *) Initialize all non-automatic variables each time one of the openssl
7364 sub-programs is started (this is necessary as they may be started
7365 multiple times from the "OpenSSL>" prompt).
7366 [Lennart Bang, Bodo Moeller]
7368 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7369 removing all other RSA functionality (this is what NO_RSA does). This
7370 is so (for example) those in the US can disable those operations covered
7371 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7375 *) Non-copying interface to BIO pairs.
7376 (still largely untested)
7379 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7380 ASCII string. This was handled independently in various places before.
7383 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7384 UTF8 strings a character at a time.
7387 *) Use client_version from client hello to select the protocol
7388 (s23_srvr.c) and for RSA client key exchange verification
7389 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7392 *) Add various utility functions to handle SPKACs, these were previously
7393 handled by poking round in the structure internals. Added new function
7394 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7395 print, verify and generate SPKACs. Based on an original idea from
7396 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7399 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7402 *) Allow the config file extension section to be overwritten on the
7403 command line. Based on an original idea from Massimiliano Pala
7404 <madwolf@comune.modena.it>. The new option is called -extensions
7405 and can be applied to ca, req and x509. Also -reqexts to override
7406 the request extensions in req and -crlexts to override the crl extensions
7410 *) Add new feature to the SPKAC handling in ca. Now you can include
7411 the same field multiple times by preceding it by "XXXX." for example:
7414 this is the same syntax as used in the req config file.
7417 *) Allow certificate extensions to be added to certificate requests. These
7418 are specified in a 'req_extensions' option of the req section of the
7419 config file. They can be printed out with the -text option to req but
7420 are otherwise ignored at present.
7423 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7424 data read consists of only the final block it would not decrypted because
7425 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7426 A misplaced 'break' also meant the decrypted final block might not be
7427 copied until the next read.
7430 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7431 a few extra parameters to the DH structure: these will be useful if
7432 for example we want the value of 'q' or implement X9.42 DH.
7435 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7436 provides hooks that allow the default DSA functions or functions on a
7437 "per key" basis to be replaced. This allows hardware acceleration and
7438 hardware key storage to be handled without major modification to the
7439 library. Also added low level modexp hooks and CRYPTO_EX structure and
7440 associated functions.
7443 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7444 as "read only": it can't be written to and the buffer it points to will
7445 not be freed. Reading from a read only BIO is much more efficient than
7446 a normal memory BIO. This was added because there are several times when
7447 an area of memory needs to be read from a BIO. The previous method was
7448 to create a memory BIO and write the data to it, this results in two
7449 copies of the data and an O(n^2) reading algorithm. There is a new
7450 function BIO_new_mem_buf() which creates a read only memory BIO from
7451 an area of memory. Also modified the PKCS#7 routines to use read only
7455 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7456 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7457 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7458 but a retry condition occured while trying to read the rest.
7461 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7462 NID_pkcs7_encrypted by default: this was wrong since this should almost
7463 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7464 the encrypted data type: this is a more sensible place to put it and it
7465 allows the PKCS#12 code to be tidied up that duplicated this
7469 *) Changed obj_dat.pl script so it takes its input and output files on
7470 the command line. This should avoid shell escape redirection problems
7474 *) Initial support for certificate extension requests, these are included
7475 in things like Xenroll certificate requests. Included functions to allow
7476 extensions to be obtained and added.
7479 *) -crlf option to s_client and s_server for sending newlines as
7480 CRLF (as required by many protocols).
7483 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7485 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7486 [Ralf S. Engelschall]
7488 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7489 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7491 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7495 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7496 DH parameters/keys (q is lost during that conversion, but the resulting
7497 DH parameters contain its length).
7499 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7500 much faster than DH_generate_parameters (which creates parameters
7501 where p = 2*q + 1), and also the smaller q makes DH computations
7502 much more efficient (160-bit exponentiation instead of 1024-bit
7503 exponentiation); so this provides a convenient way to support DHE
7504 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7505 utter importance to use
7506 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7508 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7509 when such DH parameters are used, because otherwise small subgroup
7510 attacks may become possible!
7513 *) Avoid memory leak in i2d_DHparams.
7516 *) Allow the -k option to be used more than once in the enc program:
7517 this allows the same encrypted message to be read by multiple recipients.
7520 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7521 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7522 it will always use the numerical form of the OID, even if it has a short
7526 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7527 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7528 otherwise bn_mod_exp was called. In the case of hardware keys for example
7529 no private key components need be present and it might store extra data
7530 in the RSA structure, which cannot be accessed from bn_mod_exp.
7531 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7532 private key operations.
7535 *) Added support for SPARC Linux.
7538 *) pem_password_cb function type incompatibly changed from
7539 typedef int pem_password_cb(char *buf, int size, int rwflag);
7541 ....(char *buf, int size, int rwflag, void *userdata);
7542 so that applications can pass data to their callbacks:
7543 The PEM[_ASN1]_{read,write}... functions and macros now take an
7544 additional void * argument, which is just handed through whenever
7545 the password callback is called.
7546 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7548 New function SSL_CTX_set_default_passwd_cb_userdata.
7550 Compatibility note: As many C implementations push function arguments
7551 onto the stack in reverse order, the new library version is likely to
7552 interoperate with programs that have been compiled with the old
7553 pem_password_cb definition (PEM_whatever takes some data that
7554 happens to be on the stack as its last argument, and the callback
7555 just ignores this garbage); but there is no guarantee whatsoever that
7558 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7559 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7560 problems not only on Windows, but also on some Unix platforms.
7561 To avoid problematic command lines, these definitions are now in an
7562 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7563 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7566 *) MIPS III/IV assembler module is reimplemented.
7569 *) More DES library cleanups: remove references to srand/rand and
7570 delete an unused file.
7573 *) Add support for the the free Netwide assembler (NASM) under Win32,
7574 since not many people have MASM (ml) and it can be hard to obtain.
7575 This is currently experimental but it seems to work OK and pass all
7576 the tests. Check out INSTALL.W32 for info.
7579 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7580 without temporary keys kept an extra copy of the server key,
7581 and connections with temporary keys did not free everything in case
7585 *) New function RSA_check_key and new openssl rsa option -check
7586 for verifying the consistency of RSA keys.
7587 [Ulf Moeller, Bodo Moeller]
7589 *) Various changes to make Win32 compile work:
7590 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7591 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7592 comparison" warnings.
7593 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7596 *) Add a debugging option to PKCS#5 v2 key generation function: when
7597 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7598 derived keys are printed to stderr.
7601 *) Copy the flags in ASN1_STRING_dup().
7602 [Roman E. Pavlov <pre@mo.msk.ru>]
7604 *) The x509 application mishandled signing requests containing DSA
7605 keys when the signing key was also DSA and the parameters didn't match.
7607 It was supposed to omit the parameters when they matched the signing key:
7608 the verifying software was then supposed to automatically use the CA's
7609 parameters if they were absent from the end user certificate.
7611 Omitting parameters is no longer recommended. The test was also
7612 the wrong way round! This was probably due to unusual behaviour in
7613 EVP_cmp_parameters() which returns 1 if the parameters match.
7614 This meant that parameters were omitted when they *didn't* match and
7615 the certificate was useless. Certificates signed with 'ca' didn't have
7617 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7619 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7620 The interface is as follows:
7621 Applications can use
7622 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7623 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7624 "off" is now the default.
7625 The library internally uses
7626 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7627 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7628 to disable memory-checking temporarily.
7630 Some inconsistent states that previously were possible (and were
7631 even the default) are now avoided.
7633 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7634 with each memory chunk allocated; this is occasionally more helpful
7635 than just having a counter.
7637 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7639 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7643 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7644 which largely parallels "options", but is for changing API behaviour,
7645 whereas "options" are about protocol behaviour.
7646 Initial "mode" flags are:
7648 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7649 a single record has been written.
7650 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7651 retries use the same buffer location.
7652 (But all of the contents must be
7656 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7659 *) Fix problems with no-hmac etc.
7660 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7662 *) New functions RSA_get_default_method(), RSA_set_method() and
7663 RSA_get_method(). These allows replacement of RSA_METHODs without having
7664 to mess around with the internals of an RSA structure.
7667 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7668 Also really enable memory leak checks in openssl.c and in some
7670 [Chad C. Mulligan, Bodo Moeller]
7672 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7673 up the length of negative integers. This has now been simplified to just
7674 store the length when it is first determined and use it later, rather
7675 than trying to keep track of where data is copied and updating it to
7677 [Steve Henson, reported by Brien Wheeler
7678 <bwheeler@authentica-security.com>]
7680 *) Add a new function PKCS7_signatureVerify. This allows the verification
7681 of a PKCS#7 signature but with the signing certificate passed to the
7682 function itself. This contrasts with PKCS7_dataVerify which assumes the
7683 certificate is present in the PKCS#7 structure. This isn't always the
7684 case: certificates can be omitted from a PKCS#7 structure and be
7685 distributed by "out of band" means (such as a certificate database).
7688 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7689 function prototypes in pem.h, also change util/mkdef.pl to add the
7690 necessary function names.
7693 *) mk1mf.pl (used by Windows builds) did not properly read the
7694 options set by Configure in the top level Makefile, and Configure
7695 was not even able to write more than one option correctly.
7696 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7699 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7700 file to be loaded from a BIO or FILE pointer. The BIO version will
7701 for example allow memory BIOs to contain config info.
7704 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7705 Whoever hopes to achieve shared-library compatibility across versions
7706 must use this, not the compile-time macro.
7707 (Exercise 0.9.4: Which is the minimum library version required by
7709 Note: All this applies only to multi-threaded programs, others don't
7713 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7714 through a BIO pair triggered the default case, i.e.
7715 SSLerr(...,SSL_R_UNKNOWN_STATE).
7718 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7719 can use the SSL library even if none of the specific BIOs is
7723 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7724 for the encoded length.
7725 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7727 *) Add initial documentation of the X509V3 functions.
7730 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7731 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7732 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7733 secure PKCS#8 private key format with a high iteration count.
7736 *) Fix determination of Perl interpreter: A perl or perl5
7737 _directory_ in $PATH was also accepted as the interpreter.
7738 [Ralf S. Engelschall]
7740 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7741 wrong with it but it was very old and did things like calling
7742 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7746 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7747 to use the new extension code.
7750 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7751 with macros. This should make it easier to change their form, add extra
7752 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7756 *) Add to configuration table a new entry that can specify an alternative
7757 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7758 according to Mark Crispin <MRC@Panda.COM>.
7762 *) DES CBC did not update the IV. Weird.
7765 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7766 Changing the behaviour of the former might break existing programs --
7767 where IV updating is needed, des_ncbc_encrypt can be used.
7770 *) When bntest is run from "make test" it drives bc to check its
7771 calculations, as well as internally checking them. If an internal check
7772 fails, it needs to cause bc to give a non-zero result or make test carries
7773 on without noticing the failure. Fixed.
7776 *) DES library cleanups.
7779 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7780 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7781 ciphers. NOTE: although the key derivation function has been verified
7782 against some published test vectors it has not been extensively tested
7783 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7787 *) Instead of "mkdir -p", which is not fully portable, use new
7788 Perl script "util/mkdir-p.pl".
7791 *) Rewrite the way password based encryption (PBE) is handled. It used to
7792 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7793 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7794 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7795 the 'parameter' field of the AlgorithmIdentifier is passed to the
7796 underlying key generation function so it must do its own ASN1 parsing.
7797 This has also changed the EVP_PBE_CipherInit() function which now has a
7798 'parameter' argument instead of literal salt and iteration count values
7799 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7802 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7803 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7804 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7805 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7806 value was just used as a "magic string" and not used directly its
7807 value doesn't matter.
7810 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7814 *) "linux-sparc64" configuration (ultrapenguin).
7815 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7816 "linux-sparc" configuration.
7817 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7819 *) config now generates no-xxx options for missing ciphers.
7822 *) Support the EBCDIC character set (work in progress).
7823 File ebcdic.c not yet included because it has a different license.
7824 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7826 *) Support BS2000/OSD-POSIX.
7827 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7829 *) Make callbacks for key generation use void * instead of char *.
7832 *) Make S/MIME samples compile (not yet tested).
7835 *) Additional typesafe stacks.
7838 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7842 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7844 *) New configuration variant "sco5-gcc".
7846 *) Updated some demos.
7847 [Sean O Riordain, Wade Scholine]
7849 *) Add missing BIO_free at exit of pkcs12 application.
7852 *) Fix memory leak in conf.c.
7855 *) Updates for Win32 to assembler version of MD5.
7858 *) Set #! path to perl in apps/der_chop to where we found it
7859 instead of using a fixed path.
7862 *) SHA library changes for irix64-mips4-cc.
7865 *) Improvements for VMS support.
7869 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7871 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7872 This also avoids the problems with SC4.2 and unpatched SC5.
7873 [Andy Polyakov <appro@fy.chalmers.se>]
7875 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7876 These are required because of the typesafe stack would otherwise break
7877 existing code. If old code used a structure member which used to be STACK
7878 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7879 sk_num or sk_value it would produce an error because the num, data members
7880 are not present in STACK_OF. Now it just produces a warning. sk_set
7881 replaces the old method of assigning a value to sk_value
7882 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7883 that does this will no longer work (and should use sk_set instead) but
7884 this could be regarded as a "questionable" behaviour anyway.
7887 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7888 correctly handle encrypted S/MIME data.
7891 *) Change type of various DES function arguments from des_cblock
7892 (which means, in function argument declarations, pointer to char)
7893 to des_cblock * (meaning pointer to array with 8 char elements),
7894 which allows the compiler to do more typechecking; it was like
7895 that back in SSLeay, but with lots of ugly casts.
7897 Introduce new type const_des_cblock.
7900 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7901 problems: find RecipientInfo structure that matches recipient certificate
7902 and initialise the ASN1 structures properly based on passed cipher.
7905 *) Belatedly make the BN tests actually check the results.
7908 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7909 to and from BNs: it was completely broken. New compilation option
7910 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7911 key elements as negative integers.
7914 *) Reorganize and speed up MD5.
7915 [Andy Polyakov <appro@fy.chalmers.se>]
7918 [Richard Levitte <richard@levitte.org>]
7920 *) New option -out to asn1parse to allow the parsed structure to be
7921 output to a file. This is most useful when combined with the -strparse
7922 option to examine the output of things like OCTET STRINGS.
7925 *) Make SSL library a little more fool-proof by not requiring any longer
7926 that SSL_set_{accept,connect}_state be called before
7927 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7928 in many applications because usually everything *appeared* to work as
7929 intended anyway -- now it really works as intended).
7932 *) Move openssl.cnf out of lib/.
7935 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7936 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7937 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7938 [Ralf S. Engelschall]
7940 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7941 handle PKCS#7 enveloped data properly.
7942 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7944 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7945 copying pointers. The cert_st handling is changed by this in
7946 various ways (and thus what used to be known as ctx->default_cert
7947 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7948 any longer when s->cert does not give us what we need).
7949 ssl_cert_instantiate becomes obsolete by this change.
7950 As soon as we've got the new code right (possibly it already is?),
7951 we have solved a couple of bugs of the earlier code where s->cert
7952 was used as if it could not have been shared with other SSL structures.
7954 Note that using the SSL API in certain dirty ways now will result
7955 in different behaviour than observed with earlier library versions:
7956 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7957 does not influence s as it used to.
7959 In order to clean up things more thoroughly, inside SSL_SESSION
7960 we don't use CERT any longer, but a new structure SESS_CERT
7961 that holds per-session data (if available); currently, this is
7962 the peer's certificate chain and, for clients, the server's certificate
7963 and temporary key. CERT holds only those values that can have
7964 meaningful defaults in an SSL_CTX.
7967 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7968 from the internal representation. Various PKCS#7 fixes: remove some
7969 evil casts and set the enc_dig_alg field properly based on the signing
7973 *) Allow PKCS#12 password to be set from the command line or the
7974 environment. Let 'ca' get its config file name from the environment
7975 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7979 *) Allow certificate policies extension to use an IA5STRING for the
7980 organization field. This is contrary to the PKIX definition but
7981 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7985 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7986 without disallowing inline assembler and the like for non-pedantic builds.
7989 *) Support Borland C++ builder.
7990 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7995 *) SHA-1 cleanups and performance enhancements.
7996 [Andy Polyakov <appro@fy.chalmers.se>]
7998 *) Sparc v8plus assembler for the bignum library.
7999 [Andy Polyakov <appro@fy.chalmers.se>]
8001 *) Accept any -xxx and +xxx compiler options in Configure.
8004 *) Update HPUX configuration.
8007 *) Add missing sk_<type>_unshift() function to safestack.h
8008 [Ralf S. Engelschall]
8010 *) New function SSL_CTX_use_certificate_chain_file that sets the
8011 "extra_cert"s in addition to the certificate. (This makes sense
8012 only for "PEM" format files, as chains as a whole are not
8016 *) Support verify_depth from the SSL API.
8017 x509_vfy.c had what can be considered an off-by-one-error:
8018 Its depth (which was not part of the external interface)
8019 was actually counting the number of certificates in a chain;
8020 now it really counts the depth.
8023 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8024 instead of X509err, which often resulted in confusing error
8025 messages since the error codes are not globally unique
8026 (e.g. an alleged error in ssl3_accept when a certificate
8027 didn't match the private key).
8029 *) New function SSL_CTX_set_session_id_context that allows to set a default
8030 value (so that you don't need SSL_set_session_id_context for each
8031 connection using the SSL_CTX).
8034 *) OAEP decoding bug fix.
8037 *) Support INSTALL_PREFIX for package builders, as proposed by
8041 *) New Configure options "threads" and "no-threads". For systems
8042 where the proper compiler options are known (currently Solaris
8043 and Linux), "threads" is the default.
8046 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8049 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8050 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8051 such as /usr/local/bin.
8054 *) "make linux-shared" to build shared libraries.
8055 [Niels Poppe <niels@netbox.org>]
8057 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8060 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8061 extension adding in x509 utility.
8064 *) Remove NOPROTO sections and error code comments.
8067 *) Partial rewrite of the DEF file generator to now parse the ANSI
8071 *) New Configure options --prefix=DIR and --openssldir=DIR.
8074 *) Complete rewrite of the error code script(s). It is all now handled
8075 by one script at the top level which handles error code gathering,
8076 header rewriting and C source file generation. It should be much better
8077 than the old method: it now uses a modified version of Ulf's parser to
8078 read the ANSI prototypes in all header files (thus the old K&R definitions
8079 aren't needed for error creation any more) and do a better job of
8080 translating function codes into names. The old 'ASN1 error code imbedded
8081 in a comment' is no longer necessary and it doesn't use .err files which
8082 have now been deleted. Also the error code call doesn't have to appear all
8083 on one line (which resulted in some large lines...).
8086 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8089 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8090 0 (which usually indicates a closed connection), but continue reading.
8093 *) Fix some race conditions.
8096 *) Add support for CRL distribution points extension. Add Certificate
8097 Policies and CRL distribution points documentation.
8100 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8103 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8104 8 of keying material. Merlin has also confirmed interop with this fix
8105 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8106 [Merlin Hughes <merlin@baltimore.ie>]
8108 *) Fix lots of warnings.
8109 [Richard Levitte <levitte@stacken.kth.se>]
8111 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8112 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8113 [Richard Levitte <levitte@stacken.kth.se>]
8115 *) Fix problems with sizeof(long) == 8.
8116 [Andy Polyakov <appro@fy.chalmers.se>]
8118 *) Change functions to ANSI C.
8121 *) Fix typos in error codes.
8122 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8124 *) Remove defunct assembler files from Configure.
8127 *) SPARC v8 assembler BIGNUM implementation.
8128 [Andy Polyakov <appro@fy.chalmers.se>]
8130 *) Support for Certificate Policies extension: both print and set.
8131 Various additions to support the r2i method this uses.
8134 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8135 return a const string when you are expecting an allocated buffer.
8138 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8139 types DirectoryString and DisplayText.
8142 *) Add code to allow r2i extensions to access the configuration database,
8143 add an LHASH database driver and add several ctx helper functions.
8146 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8147 fail when they extended the size of a BIGNUM.
8150 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8151 support typesafe stack.
8154 *) Fix typo in SSL_[gs]et_options().
8155 [Nils Frostberg <nils@medcom.se>]
8157 *) Delete various functions and files that belonged to the (now obsolete)
8158 old X509V3 handling code.
8161 *) New Configure option "rsaref".
8164 *) Don't auto-generate pem.h.
8167 *) Introduce type-safe ASN.1 SETs.
8170 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8171 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8173 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8174 that links with OpenSSL (well at least cause lots of warnings), but fear
8175 not: the conversion is trivial, and it eliminates loads of evil casts. A
8176 few STACKed things have been converted already. Feel free to convert more.
8177 In the fullness of time, I'll do away with the STACK type altogether.
8180 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8181 specified in <certfile> by updating the entry in the index.txt file.
8182 This way one no longer has to edit the index.txt file manually for
8183 revoking a certificate. The -revoke option does the gory details now.
8184 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8186 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8187 `-text' option at all and this way the `-noout -text' combination was
8188 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8189 [Ralf S. Engelschall]
8191 *) Make sure a corresponding plain text error message exists for the
8192 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8193 verify callback function determined that a certificate was revoked.
8194 [Ralf S. Engelschall]
8196 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8197 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8198 all available cipers including rc5, which was forgotten until now.
8199 In order to let the testing shell script know which algorithms
8200 are available, a new (up to now undocumented) command
8201 "openssl list-cipher-commands" is used.
8204 *) Bugfix: s_client occasionally would sleep in select() when
8205 it should have checked SSL_pending() first.
8208 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8209 the raw DSA values prior to ASN.1 encoding.
8212 *) Tweaks to Configure
8213 [Niels Poppe <niels@netbox.org>]
8215 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8219 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8222 *) New config option to avoid instructions that are illegal on the 80386.
8223 The default code is faster, but requires at least a 486.
8226 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8227 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8228 same as SSL2_VERSION anyway.
8231 *) New "-showcerts" option for s_client.
8234 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8235 application. Various cleanups and fixes.
8238 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8239 modify error routines to work internally. Add error codes and PBE init
8240 to library startup routines.
8243 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8244 packing functions to asn1 and evp. Changed function names and error
8245 codes along the way.
8248 *) PKCS12 integration: and so it begins... First of several patches to
8249 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8250 objects to objects.h
8253 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8254 and display support for Thawte strong extranet extension.
8257 *) Add LinuxPPC support.
8258 [Jeff Dubrule <igor@pobox.org>]
8260 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8261 bn_div_words in alpha.s.
8262 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8264 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8265 OAEP isn't supported when OpenSSL is built with RSAref.
8266 [Ulf Moeller <ulf@fitug.de>]
8268 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8269 so they no longer are missing under -DNOPROTO.
8270 [Soren S. Jorvang <soren@t.dk>]
8273 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8275 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8276 doesn't work when the session is reused. Coming soon!
8279 *) Fix a security hole, that allows sessions to be reused in the wrong
8280 context thus bypassing client cert protection! All software that uses
8281 client certs and session caches in multiple contexts NEEDS PATCHING to
8282 allow session reuse! A fuller solution is in the works.
8283 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8285 *) Some more source tree cleanups (removed obsolete files
8286 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8287 permission on "config" script to be executable) and a fix for the INSTALL
8289 [Ulf Moeller <ulf@fitug.de>]
8291 *) Remove some legacy and erroneous uses of malloc, free instead of
8293 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8295 *) Make rsa_oaep_test return non-zero on error.
8296 [Ulf Moeller <ulf@fitug.de>]
8298 *) Add support for native Solaris shared libraries. Configure
8299 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8300 if someone would make that last step automatic.
8301 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8303 *) ctx_size was not built with the right compiler during "make links". Fixed.
8306 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8307 except NULL ciphers". This means the default cipher list will no longer
8308 enable NULL ciphers. They need to be specifically enabled e.g. with
8309 the string "DEFAULT:eNULL".
8312 *) Fix to RSA private encryption routines: if p < q then it would
8313 occasionally produce an invalid result. This will only happen with
8314 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8317 *) Be less restrictive and allow also `perl util/perlpath.pl
8318 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8319 because this way one can also use an interpreter named `perl5' (which is
8320 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8321 installed as `perl').
8322 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8324 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8325 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8327 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8328 advapi32.lib to Win32 build and change the pem test comparision
8329 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8330 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8331 and crypto/des/ede_cbcm_enc.c.
8334 *) DES quad checksum was broken on big-endian architectures. Fixed.
8337 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8338 Win32 test batch file so it (might) work again. The Win32 test batch file
8339 is horrible: I feel ill....
8342 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8343 in e_os.h. Audit of header files to check ANSI and non ANSI
8344 sections: 10 functions were absent from non ANSI section and not exported
8345 from Windows DLLs. Fixed up libeay.num for new functions.
8348 *) Make `openssl version' output lines consistent.
8349 [Ralf S. Engelschall]
8351 *) Fix Win32 symbol export lists for BIO functions: Added
8352 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8353 to ms/libeay{16,32}.def.
8354 [Ralf S. Engelschall]
8356 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8357 fine under Unix and passes some trivial tests I've now added. But the
8358 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8359 added to make sure no one expects that this stuff really works in the
8360 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8361 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8363 [Ralf S. Engelschall]
8365 *) Fix the generation of two part addresses in perl.
8366 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8368 *) Add config entry for Linux on MIPS.
8369 [John Tobey <jtobey@channel1.com>]
8371 *) Make links whenever Configure is run, unless we are on Windoze.
8374 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8375 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8379 *) Add a useful kludge to allow package maintainers to specify compiler and
8380 other platforms details on the command line without having to patch the
8381 Configure script everytime: One now can use ``perl Configure
8382 <id>:<details>'', i.e. platform ids are allowed to have details appended
8383 to them (seperated by colons). This is treated as there would be a static
8384 pre-configured entry in Configure's %table under key <id> with value
8385 <details> and ``perl Configure <id>'' is called. So, when you want to
8386 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8387 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8388 now, which overrides the FreeBSD-elf entry on-the-fly.
8389 [Ralf S. Engelschall]
8391 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8394 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8395 on the `perl Configure ...' command line. This way one can compile
8396 OpenSSL libraries with Position Independent Code (PIC) which is needed
8397 for linking it into DSOs.
8398 [Ralf S. Engelschall]
8400 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8404 *) Cleaned up the LICENSE document: The official contact for any license
8405 questions now is the OpenSSL core team under openssl-core@openssl.org.
8406 And add a paragraph about the dual-license situation to make sure people
8407 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8408 to the OpenSSL toolkit.
8409 [Ralf S. Engelschall]
8411 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8412 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8413 Additonally cleaned up the `make links' target: Remove unnecessary
8414 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8415 to speed processing and no longer clutter the display with confusing
8416 stuff. Instead only the actually done links are displayed.
8417 [Ralf S. Engelschall]
8419 *) Permit null encryption ciphersuites, used for authentication only. It used
8420 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8421 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8425 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8426 signed attributes when verifying signatures (this would break them),
8427 the detached data encoding was wrong and public keys obtained using
8428 X509_get_pubkey() weren't freed.
8431 *) Add text documentation for the BUFFER functions. Also added a work around
8432 to a Win95 console bug. This was triggered by the password read stuff: the
8433 last character typed gets carried over to the next fread(). If you were
8434 generating a new cert request using 'req' for example then the last
8435 character of the passphrase would be CR which would then enter the first
8439 *) Added the new `Includes OpenSSL Cryptography Software' button as
8440 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8441 button and can be used by applications based on OpenSSL to show the
8442 relationship to the OpenSSL project.
8443 [Ralf S. Engelschall]
8445 *) Remove confusing variables in function signatures in files
8446 ssl/ssl_lib.c and ssl/ssl.h.
8447 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8449 *) Don't install bss_file.c under PREFIX/include/
8450 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8452 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8453 functions that return function pointers and has support for NT specific
8454 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8455 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8456 unsigned to signed types: this was killing the Win32 compile.
8459 *) Add new certificate file to stack functions,
8460 SSL_add_dir_cert_subjects_to_stack() and
8461 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8462 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8463 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8464 This means that Apache-SSL and similar packages don't have to mess around
8465 to add as many CAs as they want to the preferred list.
8468 *) Experiment with doxygen documentation. Currently only partially applied to
8470 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8471 openssl.doxy as the configuration file.
8474 *) Get rid of remaining C++-style comments which strict C compilers hate.
8475 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8477 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8478 compiled in by default: it has problems with large keys.
8481 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8482 DH private keys and/or callback functions which directly correspond to
8483 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8484 is needed for applications which have to configure certificates on a
8485 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8487 For the RSA certificate situation is makes no difference, but
8488 for the DSA certificate situation this fixes the "no shared cipher"
8489 problem where the OpenSSL cipher selection procedure failed because the
8490 temporary keys were not overtaken from the context and the API provided
8491 no way to reconfigure them.
8492 The new functions now let applications reconfigure the stuff and they
8493 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8494 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8495 non-public-API function ssl_cert_instantiate() is used as a helper
8496 function and also to reduce code redundancy inside ssl_rsa.c.
8497 [Ralf S. Engelschall]
8499 *) Move s_server -dcert and -dkey options out of the undocumented feature
8500 area because they are useful for the DSA situation and should be
8501 recognized by the users.
8502 [Ralf S. Engelschall]
8504 *) Fix the cipher decision scheme for export ciphers: the export bits are
8505 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8506 SSL_EXP_MASK. So, the original variable has to be used instead of the
8507 already masked variable.
8508 [Richard Levitte <levitte@stacken.kth.se>]
8510 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8511 [Richard Levitte <levitte@stacken.kth.se>]
8513 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8514 from `int' to `unsigned int' because it's a length and initialized by
8515 EVP_DigestFinal() which expects an `unsigned int *'.
8516 [Richard Levitte <levitte@stacken.kth.se>]
8518 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8519 script. Instead use the usual Shell->Perl transition trick.
8520 [Ralf S. Engelschall]
8522 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8523 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8524 -noout -modulus' as it's already the case for `openssl rsa -noout
8525 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8526 currently the public key is printed (a decision which was already done by
8527 `openssl dsa -modulus' in the past) which serves a similar purpose.
8528 Additionally the NO_RSA no longer completely removes the whole -modulus
8529 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8531 [Ralf S. Engelschall]
8533 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8534 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8535 [Arne Ansper <arne@ats.cyber.ee>]
8537 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8538 to be added. Now both 'req' and 'ca' can use new objects defined in the
8542 *) Add cool BIO that does syslog (or event log on NT).
8543 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8545 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8546 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8547 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8548 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8551 *) Add preliminary config info for new extension code.
8554 *) Make RSA_NO_PADDING really use no padding.
8555 [Ulf Moeller <ulf@fitug.de>]
8557 *) Generate errors when private/public key check is done.
8560 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8561 for some CRL extensions and new objects added.
8564 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8565 key usage extension and fuller support for authority key id.
8568 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8569 padding method for RSA, which is recommended for new applications in PKCS
8570 #1 v2.0 (RFC 2437, October 1998).
8571 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8572 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8573 against Bleichbacher's attack on RSA.
8574 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8577 *) Updates to the new SSL compression code
8578 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8580 *) Fix so that the version number in the master secret, when passed
8581 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8582 (because the server will not accept higher), that the version number
8583 is 0x03,0x01, not 0x03,0x00
8584 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8586 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8587 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8588 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8591 *) Support for RAW extensions where an arbitrary extension can be
8592 created by including its DER encoding. See apps/openssl.cnf for
8596 *) Make sure latest Perl versions don't interpret some generated C array
8597 code as Perl array code in the crypto/err/err_genc.pl script.
8598 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8600 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8601 not many people have the assembler. Various Win32 compilation fixes and
8602 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8606 *) Modify configure script 'Configure' to automatically create crypto/date.h
8607 file under Win32 and also build pem.h from pem.org. New script
8608 util/mkfiles.pl to create the MINFO file on environments that can't do a
8609 'make files': perl util/mkfiles.pl >MINFO should work.
8612 *) Major rework of DES function declarations, in the pursuit of correctness
8613 and purity. As a result, many evil casts evaporated, and some weirdness,
8614 too. You may find this causes warnings in your code. Zapping your evil
8615 casts will probably fix them. Mostly.
8618 *) Fix for a typo in asn1.h. Bug fix to object creation script
8619 obj_dat.pl. It considered a zero in an object definition to mean
8620 "end of object": none of the objects in objects.h have any zeros
8621 so it wasn't spotted.
8622 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8624 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8625 Masking (CBCM). In the absence of test vectors, the best I have been able
8626 to do is check that the decrypt undoes the encrypt, so far. Send me test
8627 vectors if you have them.
8630 *) Correct calculation of key length for export ciphers (too much space was
8631 allocated for null ciphers). This has not been tested!
8634 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8635 message is now correct (it understands "crypto" and "ssl" on its
8636 command line). There is also now an "update" option. This will update
8637 the util/ssleay.num and util/libeay.num files with any new functions.
8639 perl util/mkdef.pl crypto ssl update
8640 it will update them.
8643 *) Overhauled the Perl interface (perl/*):
8644 - ported BN stuff to OpenSSL's different BN library
8645 - made the perl/ source tree CVS-aware
8646 - renamed the package from SSLeay to OpenSSL (the files still contain
8647 their history because I've copied them in the repository)
8648 - removed obsolete files (the test scripts will be replaced
8649 by better Test::Harness variants in the future)
8650 [Ralf S. Engelschall]
8652 *) First cut for a very conservative source tree cleanup:
8653 1. merge various obsolete readme texts into doc/ssleay.txt
8654 where we collect the old documents and readme texts.
8655 2. remove the first part of files where I'm already sure that we no
8656 longer need them because of three reasons: either they are just temporary
8657 files which were left by Eric or they are preserved original files where
8658 I've verified that the diff is also available in the CVS via "cvs diff
8659 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8660 the crypto/md/ stuff).
8661 [Ralf S. Engelschall]
8663 *) More extension code. Incomplete support for subject and issuer alt
8664 name, issuer and authority key id. Change the i2v function parameters
8665 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8666 what that's for :-) Fix to ASN1 macro which messed up
8667 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8670 *) Preliminary support for ENUMERATED type. This is largely copied from the
8674 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8675 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8677 *) Make sure `make rehash' target really finds the `openssl' program.
8678 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8680 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8681 like to hear about it if this slows down other processors.
8684 *) Add CygWin32 platform information to Configure script.
8685 [Alan Batie <batie@aahz.jf.intel.com>]
8687 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8688 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8690 *) New program nseq to manipulate netscape certificate sequences
8693 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8697 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8698 but the BN code had some problems that would cause failures when
8699 doing certificate verification and some other functions.
8700 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8702 *) Add ASN1 and PEM code to support netscape certificate sequences.
8705 *) Add ASN1 and PEM code to support netscape certificate sequences.
8708 *) Add several PKIX and private extended key usage OIDs.
8711 *) Modify the 'ca' program to handle the new extension code. Modify
8712 openssl.cnf for new extension format, add comments.
8715 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8716 and add a sample to openssl.cnf so req -x509 now adds appropriate
8720 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8721 error code, add initial support to X509_print() and x509 application.
8724 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8725 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8726 stuff is currently isolated and isn't even compiled yet.
8729 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8730 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8731 Removed the versions check from X509 routines when loading extensions:
8732 this allows certain broken certificates that don't set the version
8733 properly to be processed.
8736 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8737 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8738 can still be regenerated with "make depend".
8741 *) Spelling mistake in C version of CAST-128.
8742 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8744 *) Changes to the error generation code. The perl script err-code.pl
8745 now reads in the old error codes and retains the old numbers, only
8746 adding new ones if necessary. It also only changes the .err files if new
8747 codes are added. The makefiles have been modified to only insert errors
8748 when needed (to avoid needlessly modifying header files). This is done
8749 by only inserting errors if the .err file is newer than the auto generated
8750 C file. To rebuild all the error codes from scratch (the old behaviour)
8751 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8752 or delete all the .err files.
8755 *) CAST-128 was incorrectly implemented for short keys. The C version has
8756 been fixed, but is untested. The assembler versions are also fixed, but
8757 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8758 to regenerate it if needed.
8759 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8760 Hagino <itojun@kame.net>]
8762 *) File was opened incorrectly in randfile.c.
8763 [Ulf Möller <ulf@fitug.de>]
8765 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8766 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8767 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8768 al: it's just almost always a UTCTime. Note this patch adds new error
8769 codes so do a "make errors" if there are problems.
8772 *) Correct Linux 1 recognition in config.
8773 [Ulf Möller <ulf@fitug.de>]
8775 *) Remove pointless MD5 hash when using DSA keys in ca.
8776 [Anonymous <nobody@replay.com>]
8778 *) Generate an error if given an empty string as a cert directory. Also
8779 generate an error if handed NULL (previously returned 0 to indicate an
8780 error, but didn't set one).
8781 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8783 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8786 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8787 parameters. This was causing a warning which killed off the Win32 compile.
8790 *) Remove C++ style comments from crypto/bn/bn_local.h.
8791 [Neil Costigan <neil.costigan@celocom.com>]
8793 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8794 based on a text string, looking up short and long names and finally
8795 "dot" format. The "dot" format stuff didn't work. Added new function
8796 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8797 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8798 OID is not part of the table.
8801 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8802 X509_LOOKUP_by_alias().
8805 *) Sort openssl functions by name.
8808 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8809 encryption from sample DSA keys (in case anyone is interested the password
8813 *) Make _all_ *_free functions accept a NULL pointer.
8814 [Frans Heymans <fheymans@isaserver.be>]
8816 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8818 [Anonymous <nobody@replay.com>]
8820 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8821 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8823 *) Don't blow it for numeric -newkey arguments to apps/req.
8824 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8826 *) Temp key "for export" tests were wrong in s3_srvr.c.
8827 [Anonymous <nobody@replay.com>]
8829 *) Add prototype for temp key callback functions
8830 SSL_CTX_set_tmp_{rsa,dh}_callback().
8833 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8834 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8837 *) X509_name_add_entry() freed the wrong thing after an error.
8838 [Arne Ansper <arne@ats.cyber.ee>]
8840 *) rsa_eay.c would attempt to free a NULL context.
8841 [Arne Ansper <arne@ats.cyber.ee>]
8843 *) BIO_s_socket() had a broken should_retry() on Windoze.
8844 [Arne Ansper <arne@ats.cyber.ee>]
8846 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8847 [Arne Ansper <arne@ats.cyber.ee>]
8849 *) Make sure the already existing X509_STORE->depth variable is initialized
8850 in X509_STORE_new(), but document the fact that this variable is still
8851 unused in the certificate verification process.
8852 [Ralf S. Engelschall]
8854 *) Fix the various library and apps files to free up pkeys obtained from
8855 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8858 *) Fix reference counting in X509_PUBKEY_get(). This makes
8859 demos/maurice/example2.c work, amongst others, probably.
8860 [Steve Henson and Ben Laurie]
8862 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8863 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8864 are no longer created. This way we have a single and consistent command
8865 line interface `openssl <command>', similar to `cvs <command>'.
8866 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8868 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8869 BIT STRING wrapper always have zero unused bits.
8872 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8875 *) Make the top-level INSTALL documentation easier to understand.
8878 *) Makefiles updated to exit if an error occurs in a sub-directory
8879 make (including if user presses ^C) [Paul Sutton]
8881 *) Make Montgomery context stuff explicit in RSA data structure.
8884 *) Fix build order of pem and err to allow for generated pem.h.
8887 *) Fix renumbering bug in X509_NAME_delete_entry().
8890 *) Enhanced the err-ins.pl script so it makes the error library number
8891 global and can add a library name. This is needed for external ASN1 and
8892 other error libraries.
8895 *) Fixed sk_insert which never worked properly.
8898 *) Fix ASN1 macros so they can handle indefinite length construted
8899 EXPLICIT tags. Some non standard certificates use these: they can now
8903 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8904 into a single doc/ssleay.txt bundle. This way the information is still
8905 preserved but no longer messes up this directory. Now it's new room for
8906 the new set of documenation files.
8907 [Ralf S. Engelschall]
8909 *) SETs were incorrectly DER encoded. This was a major pain, because they
8910 shared code with SEQUENCEs, which aren't coded the same. This means that
8911 almost everything to do with SETs or SEQUENCEs has either changed name or
8912 number of arguments.
8913 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8915 *) Fix test data to work with the above.
8918 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8919 was already fixed by Eric for 0.9.1 it seems.
8920 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8922 *) Autodetect FreeBSD3.
8925 *) Fix various bugs in Configure. This affects the following platforms:
8929 unixware-2.0-pentium
8933 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8934 before they are needed.
8937 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8941 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8943 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8944 changed SSLeay to OpenSSL in version strings.
8945 [Ralf S. Engelschall]
8947 *) Some fixups to the top-level documents.
8950 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8951 because the symlink to include/ was missing.
8952 [Ralf S. Engelschall]
8954 *) Incorporated the popular no-RSA/DSA-only patches
8955 which allow to compile a RSA-free SSLeay.
8956 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8958 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8959 when "ssleay" is still not found.
8960 [Ralf S. Engelschall]
8962 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8963 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8965 *) Updated the README file.
8966 [Ralf S. Engelschall]
8968 *) Added various .cvsignore files in the CVS repository subdirs
8969 to make a "cvs update" really silent.
8970 [Ralf S. Engelschall]
8972 *) Recompiled the error-definition header files and added
8973 missing symbols to the Win32 linker tables.
8974 [Ralf S. Engelschall]
8976 *) Cleaned up the top-level documents;
8977 o new files: CHANGES and LICENSE
8978 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8979 o merged COPYRIGHT into LICENSE
8980 o removed obsolete TODO file
8981 o renamed MICROSOFT to INSTALL.W32
8982 [Ralf S. Engelschall]
8984 *) Removed dummy files from the 0.9.1b source tree:
8985 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8986 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8987 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8988 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8989 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8990 [Ralf S. Engelschall]
8992 *) Added various platform portability fixes.
8995 *) The Genesis of the OpenSSL rpject:
8996 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8997 Young and Tim J. Hudson created while they were working for C2Net until
8999 [The OpenSSL Project]
9002 Changes between 0.9.0b and 0.9.1b [not released]
9004 *) Updated a few CA certificates under certs/
9007 *) Changed some BIGNUM api stuff.
9010 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9011 DGUX x86, Linux Alpha, etc.
9014 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9015 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9019 *) Add -strparse option to asn1pars program which parses nested
9021 [Dr Stephen Henson <shenson@bigfoot.com>]
9023 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9026 *) DSA fix for "ca" program.
9029 *) Added "-genkey" option to "dsaparam" program.
9032 *) Added RIPE MD160 (rmd160) message digest.
9035 *) Added -a (all) option to "ssleay version" command.
9038 *) Added PLATFORM define which is the id given to Configure.
9041 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9044 *) Extended the ASN.1 parser routines.
9047 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9050 *) Added a BN_CTX to the BN library.
9053 *) Fixed the weak key values in DES library
9056 *) Changed API in EVP library for cipher aliases.
9059 *) Added support for RC2/64bit cipher.
9062 *) Converted the lhash library to the crypto/mem.c functions.
9065 *) Added more recognized ASN.1 object ids.
9068 *) Added more RSA padding checks for SSL/TLS.
9071 *) Added BIO proxy/filter functionality.
9074 *) Added extra_certs to SSL_CTX which can be used
9075 send extra CA certificates to the client in the CA cert chain sending
9076 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9079 *) Now Fortezza is denied in the authentication phase because
9080 this is key exchange mechanism is not supported by SSLeay at all.
9083 *) Additional PKCS1 checks.
9086 *) Support the string "TLSv1" for all TLS v1 ciphers.
9089 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9090 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9093 *) Fixed a few memory leaks.
9096 *) Fixed various code and comment typos.
9099 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9100 bytes sent in the client random.
9101 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob