5 Changes between 0.9.8j and 0.9.9 [xx XXX xxxx]
7 *) Modify HMAC functions to return a value. Since these can be implemented
8 in an ENGINE errors can occur.
11 *) Type-checked OBJ_bsearch_ex.
14 *) Type-checked OBJ_bsearch. Also some constification necessitated
15 by type-checking. Still to come: TXT_DB, bsearch(?),
16 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
20 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
21 seconds to a tm structure directly, instead of going through OS
22 specific date routines. This avoids any issues with OS routines such
23 as the year 2038 bug. New *_adj() functions for ASN1 time structures
24 and X509_time_adj_ex() to cover the extended range. The existing
25 X509_time_adj() is still usable and will no longer have any date issues.
28 *) Delta CRL support. New use deltas option which will attempt to locate
29 and search any appropriate delta CRLs available.
31 This work was sponsored by Google.
34 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
35 code and add additional score elements. Validate alternate CRL paths
36 as part of the CRL checking and indicate a new error "CRL path validation
37 error" in this case. Applications wanting additional details can use
38 the verify callback and check the new "parent" field. If this is not
39 NULL CRL path validation is taking place. Existing applications wont
40 see this because it requires extended CRL support which is off by
43 This work was sponsored by Google.
46 *) Support for freshest CRL extension.
48 This work was sponsored by Google.
51 *) Initial indirect CRL support. Currently only supported in the CRLs
52 passed directly and not via lookup. Process certificate issuer
53 CRL entry extension and lookup CRL entries by bother issuer name
54 and serial number. Check and process CRL issuer entry in IDP extension.
56 This work was sponsored by Google.
59 *) Add support for distinct certificate and CRL paths. The CRL issuer
60 certificate is validated separately in this case. Only enabled if
61 an extended CRL support flag is set: this flag will enable additional
62 CRL functionality in future.
64 This work was sponsored by Google.
67 *) Add support for policy mappings extension.
69 This work was sponsored by Google.
72 *) Fixes to pathlength constraint, self issued certificate handling,
73 policy processing to align with RFC3280 and PKITS tests.
75 This work was sponsored by Google.
78 *) Support for name constraints certificate extension. DN, email, DNS
79 and URI types are currently supported.
81 This work was sponsored by Google.
84 *) To cater for systems that provide a pointer-based thread ID rather
85 than numeric, deprecate the current numeric thread ID mechanism and
86 replace it with a structure and associated callback type. This
87 mechanism allows a numeric "hash" to be extracted from a thread ID in
88 either case, and on platforms where pointers are larger than 'long',
89 mixing is done to help ensure the numeric 'hash' is usable even if it
90 can't be guaranteed unique. The default mechanism is to use "&errno"
91 as a pointer-based thread ID to distinguish between threads.
93 Applications that want to provide their own thread IDs should now use
94 CRYPTO_THREADID_set_callback() to register a callback that will call
95 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
97 Note that ERR_remove_state() is now deprecated, because it is tied
98 to the assumption that thread IDs are numeric. ERR_remove_state(0)
99 to free the current thread's error state should be replaced by
100 ERR_remove_thread_state(NULL).
102 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
103 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
104 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
105 application was previously providing a numeric thread callback that
106 was inappropriate for distinguishing threads, then uniqueness might
107 have been obtained with &errno that happened immediately in the
108 intermediate development versions of OpenSSL; this is no longer the
109 case, the numeric thread callback will now override the automatic use
111 [Geoff Thorpe, with help from Bodo Moeller]
113 *) Initial support for different CRL issuing certificates. This covers a
114 simple case where the self issued certificates in the chain exist and
115 the real CRL issuer is higher in the existing chain.
117 This work was sponsored by Google.
120 *) Removed effectively defunct crypto/store from the build.
123 *) Revamp of STACK to provide stronger type-checking. Still to come:
124 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
125 ASN1_STRING, CONF_VALUE.
128 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
129 RAM on SSL connections. This option can save about 34k per idle SSL.
132 *) Revamp of LHASH to provide stronger type-checking. Still to come:
133 STACK, TXT_DB, bsearch, qsort.
136 *) Initial support for Cryptographic Message Syntax (aka CMS) based
137 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
138 support for data, signedData, compressedData, digestedData and
139 encryptedData, envelopedData types included. Scripts to check against
140 RFC4134 examples draft and interop and consistency checks of many
141 content types and variants.
144 *) Add options to enc utility to support use of zlib compression BIO.
147 *) Extend mk1mf to support importing of options and assembly language
148 files from Configure script, currently only included in VC-WIN32.
149 The assembly language rules can now optionally generate the source
150 files from the associated perl scripts.
153 *) Implement remaining functionality needed to support GOST ciphersuites.
154 Interop testing has been performed using CryptoPro implementations.
155 [Victor B. Wagner <vitus@cryptocom.ru>]
157 *) s390x assembler pack.
160 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
164 *) Implement Opaque PRF Input TLS extension as specified in
165 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
166 official specification yet and no extension type assignment by
167 IANA exists, this extension (for now) will have to be explicitly
168 enabled when building OpenSSL by providing the extension number
169 to use. For example, specify an option
171 -DTLSEXT_TYPE_opaque_prf_input=0x9527
173 to the "config" or "Configure" script to enable the extension,
174 assuming extension number 0x9527 (which is a completely arbitrary
175 and unofficial assignment based on the MD5 hash of the Internet
176 Draft). Note that by doing so, you potentially lose
177 interoperability with other TLS implementations since these might
178 be using the same extension number for other purposes.
180 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
181 opaque PRF input value to use in the handshake. This will create
182 an interal copy of the length-'len' string at 'src', and will
183 return non-zero for success.
185 To get more control and flexibility, provide a callback function
188 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
189 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
193 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
196 Callback function 'cb' will be called in handshakes, and is
197 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
198 Argument 'arg' is for application purposes (the value as given to
199 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
200 be provided to the callback function). The callback function
201 has to return non-zero to report success: usually 1 to use opaque
202 PRF input just if possible, or 2 to enforce use of the opaque PRF
203 input. In the latter case, the library will abort the handshake
204 if opaque PRF input is not successfully negotiated.
206 Arguments 'peerinput' and 'len' given to the callback function
207 will always be NULL and 0 in the case of a client. A server will
208 see the client's opaque PRF input through these variables if
209 available (NULL and 0 otherwise). Note that if the server
210 provides an opaque PRF input, the length must be the same as the
211 length of the client's opaque PRF input.
213 Note that the callback function will only be called when creating
214 a new session (session resumption can resume whatever was
215 previously negotiated), and will not be called in SSL 2.0
216 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
217 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
218 for applications that need to enforce opaque PRF input.
222 *) Update ssl code to support digests other than SHA1+MD5 for handshake
225 [Victor B. Wagner <vitus@cryptocom.ru>]
227 *) Add RFC4507 support to OpenSSL. This includes the corrections in
228 RFC4507bis. The encrypted ticket format is an encrypted encoded
229 SSL_SESSION structure, that way new session features are automatically
232 If a client application caches session in an SSL_SESSION structure
233 support is transparent because tickets are now stored in the encoded
236 The SSL_CTX structure automatically generates keys for ticket
237 protection in servers so again support should be possible
238 with no application modification.
240 If a client or server wishes to disable RFC4507 support then the option
241 SSL_OP_NO_TICKET can be set.
243 Add a TLS extension debugging callback to allow the contents of any client
244 or server extensions to be examined.
246 This work was sponsored by Google.
249 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
250 OpenSSL should now compile cleanly on gcc 4.2
251 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
253 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
254 support including streaming MAC support: this is required for GOST
256 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
258 *) Add option -stream to use PKCS#7 streaming in smime utility. New
259 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
260 to output in BER and PEM format.
263 *) Experimental support for use of HMAC via EVP_PKEY interface. This
264 allows HMAC to be handled via the EVP_DigestSign*() interface. The
265 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
266 ENGINE support for HMAC keys which are unextractable. New -mac and
267 -macopt options to dgst utility.
270 *) New option -sigopt to dgst utility. Update dgst to use
271 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
272 alternative signing paramaters such as X9.31 or PSS in the dgst
276 *) Change ssl_cipher_apply_rule(), the internal function that does
277 the work each time a ciphersuite string requests enabling
278 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
279 removing ("!foo+bar") a class of ciphersuites: Now it maintains
280 the order of disabled ciphersuites such that those ciphersuites
281 that most recently went from enabled to disabled not only stay
282 in order with respect to each other, but also have higher priority
283 than other disabled ciphersuites the next time ciphersuites are
286 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
287 the same ciphersuites as with "HIGH" alone, but in a specific
288 order where the PSK ciphersuites come first (since they are the
289 most recently disabled ciphersuites when "HIGH" is parsed).
291 Also, change ssl_create_cipher_list() (using this new
292 funcionality) such that between otherwise identical
293 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
297 *) Change ssl_create_cipher_list() so that it automatically
298 arranges the ciphersuites in reasonable order before starting
299 to process the rule string. Thus, the definition for "DEFAULT"
300 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
301 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
302 This makes it much easier to arrive at a reasonable default order
303 in applications for which anonymous ciphers are OK (meaning
304 that you can't actually use DEFAULT).
305 [Bodo Moeller; suggested by Victor Duchovni]
307 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
308 processing) into multiple integers instead of setting
309 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
310 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
311 (These masks as well as the individual bit definitions are hidden
312 away into the non-exported interface ssl/ssl_locl.h, so this
313 change to the definition of the SSL_CIPHER structure shouldn't
314 affect applications.) This give us more bits for each of these
315 categories, so there is no longer a need to coagulate AES128 and
316 AES256 into a single algorithm bit, and to coagulate Camellia128
317 and Camellia256 into a single algorithm bit, which has led to all
320 Thus, among other things, the kludge introduced in 0.9.7m and
321 0.9.8e for masking out AES256 independently of AES128 or masking
322 out Camellia256 independently of AES256 is not needed here in 0.9.9.
324 With the change, we also introduce new ciphersuite aliases that
325 so far were missing: "AES128", "AES256", "CAMELLIA128", and
329 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
330 Use the leftmost N bytes of the signature input if the input is
331 larger than the prime q (with N being the size in bytes of q).
334 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
335 it yet and it is largely untested.
338 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
341 *) Initial incomplete changes to avoid need for function casts in OpenSSL
342 some compilers (gcc 4.2 and later) reject their use. Safestack is
343 reimplemented. Update ASN1 to avoid use of legacy functions.
346 *) Win32/64 targets are linked with Winsock2.
349 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
350 to external functions. This can be used to increase CRL handling
351 efficiency especially when CRLs are very large by (for example) storing
352 the CRL revoked certificates in a database.
355 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
356 new CRLs added to a directory can be used. New command line option
357 -verify_return_error to s_client and s_server. This causes real errors
358 to be returned by the verify callback instead of carrying on no matter
359 what. This reflects the way a "real world" verify callback would behave.
362 *) GOST engine, supporting several GOST algorithms and public key formats.
363 Kindly donated by Cryptocom.
366 *) Partial support for Issuing Distribution Point CRL extension. CRLs
367 partitioned by DP are handled but no indirect CRL or reason partitioning
368 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
369 selected via a scoring technique which handles IDP and AKID in CRLs.
372 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
373 will ultimately be used for all verify operations: this will remove the
374 X509_STORE dependency on certificate verification and allow alternative
375 lookup methods. X509_STORE based implementations of these two callbacks.
378 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
379 Modify get_crl() to find a valid (unexpired) CRL if possible.
382 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
383 this would be called X509_CRL_cmp() but that name is already used by
384 a function that just compares CRL issuer names. Cache several CRL
385 extensions in X509_CRL structure and cache CRLDP in X509.
388 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
389 this maps equivalent X509_NAME structures into a consistent structure.
390 Name comparison can then be performed rapidly using memcmp().
393 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
397 *) Allow digests to supply their own micalg string for S/MIME type using
398 the ctrl EVP_MD_CTRL_MICALG.
401 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
402 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
403 ctrl. It can then customise the structure before and/or after signing
407 *) New function OBJ_add_sigid() to allow application defined signature OIDs
408 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
409 to free up any added signature OIDs.
412 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
413 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
414 digest and cipher tables. New options added to openssl utility:
415 list-message-digest-algorithms and list-cipher-algorithms.
418 *) Change the array representation of binary polynomials: the list
419 of degrees of non-zero coefficients is now terminated with -1.
420 Previously it was terminated with 0, which was also part of the
421 value; thus, the array representation was not applicable to
422 polynomials where t^0 has coefficient zero. This change makes
423 the array representation useful in a more general context.
426 *) Various modifications and fixes to SSL/TLS cipher string
427 handling. For ECC, the code now distinguishes between fixed ECDH
428 with RSA certificates on the one hand and with ECDSA certificates
429 on the other hand, since these are separate ciphersuites. The
430 unused code for Fortezza ciphersuites has been removed.
432 For consistency with EDH, ephemeral ECDH is now called "EECDH"
433 (not "ECDHE"). For consistency with the code for DH
434 certificates, use of ECDH certificates is now considered ECDH
435 authentication, not RSA or ECDSA authentication (the latter is
436 merely the CA's signing algorithm and not actively used in the
439 The temporary ciphersuite alias "ECCdraft" is no longer
440 available, and ECC ciphersuites are no longer excluded from "ALL"
441 and "DEFAULT". The following aliases now exist for RFC 4492
442 ciphersuites, most of these by analogy with the DH case:
444 kECDHr - ECDH cert, signed with RSA
445 kECDHe - ECDH cert, signed with ECDSA
446 kECDH - ECDH cert (signed with either RSA or ECDSA)
447 kEECDH - ephemeral ECDH
448 ECDH - ECDH cert or ephemeral ECDH
454 AECDH - anonymous ECDH
455 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
459 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
460 Use correct micalg parameters depending on digest(s) in signed message.
463 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
464 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
467 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
468 an engine to register a method. Add ENGINE lookups for methods and
469 functional reference processing.
472 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
473 EVP_{Sign,Verify}* which allow an application to customise the signature
477 *) New -resign option to smime utility. This adds one or more signers
478 to an existing PKCS#7 signedData structure. Also -md option to use an
479 alternative message digest algorithm for signing.
482 *) Tidy up PKCS#7 routines and add new functions to make it easier to
483 create PKCS7 structures containing multiple signers. Update smime
484 application to support multiple signers.
487 *) New -macalg option to pkcs12 utility to allow setting of an alternative
491 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
492 Reorganize PBE internals to lookup from a static table using NIDs,
493 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
494 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
495 PRF which will be automatically used with PBES2.
498 *) Replace the algorithm specific calls to generate keys in "req" with the
502 *) Update PKCS#7 enveloped data routines to use new API. This is now
503 supported by any public key method supporting the encrypt operation. A
504 ctrl is added to allow the public key algorithm to examine or modify
505 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
509 *) Add a ctrl to asn1 method to allow a public key algorithm to express
510 a default digest type to use. In most cases this will be SHA1 but some
511 algorithms (such as GOST) need to specify an alternative digest. The
512 return value indicates how strong the prefernce is 1 means optional and
513 2 is mandatory (that is it is the only supported type). Modify
514 ASN1_item_sign() to accept a NULL digest argument to indicate it should
515 use the default md. Update openssl utilities to use the default digest
516 type for signing if it is not explicitly indicated.
519 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
520 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
521 signing method from the key type. This effectively removes the link
522 between digests and public key types.
525 *) Add an OID cross reference table and utility functions. Its purpose is to
526 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
527 rsaEncryption. This will allow some of the algorithm specific hackery
528 needed to use the correct OID to be removed.
531 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
532 structures for PKCS7_sign(). They are now set up by the relevant public
536 *) Add provisional EC pkey method with support for ECDSA and ECDH.
539 *) Add support for key derivation (agreement) in the API, DH method and
543 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
544 public and private key formats. As a side effect these add additional
545 command line functionality not previously available: DSA signatures can be
546 generated and verified using pkeyutl and DH key support and generation in
551 [Oliver Tappe <zooey@hirschkaefer.de>]
553 *) New make target "install_html_docs" installs HTML renditions of the
555 [Oliver Tappe <zooey@hirschkaefer.de>]
557 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
558 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
559 support key and parameter generation and add initial key generation
560 functionality for RSA.
563 *) Add functions for main EVP_PKEY_method operations. The undocumented
564 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
565 EVP_PKEY_{encrypt,decrypt}_old.
568 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
569 key API, doesn't do much yet.
572 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
573 public key algorithms. New option to openssl utility:
574 "list-public-key-algorithms" to print out info.
577 *) Implement the Supported Elliptic Curves Extension for
578 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
581 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
582 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
585 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
586 utilities such as rsa, dsa, dsaparam etc except they process any key
590 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
591 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
592 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
596 *) Initial support for pluggable public key ASN1.
597 De-spaghettify the public key ASN1 handling. Move public and private
598 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
599 algorithm specific handling to a single module within the relevant
600 algorithm directory. Add functions to allow (near) opaque processing
601 of public and private key structures.
604 *) Implement the Supported Point Formats Extension for
605 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
608 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
609 for the psk identity [hint] and the psk callback functions to the
610 SSL_SESSION, SSL and SSL_CTX structure.
613 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
617 SSL_CTX_use_psk_identity_hint
618 SSL_get_psk_identity_hint
620 SSL_use_psk_identity_hint
622 [Mika Kousa and Pasi Eronen of Nokia Corporation]
624 *) Add RFC 3161 compliant time stamp request creation, response generation
625 and response verification functionality.
626 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
628 *) Add initial support for TLS extensions, specifically for the server_name
629 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
630 have new members for a host name. The SSL data structure has an
631 additional member SSL_CTX *initial_ctx so that new sessions can be
632 stored in that context to allow for session resumption, even after the
633 SSL has been switched to a new SSL_CTX in reaction to a client's
634 server_name extension.
636 New functions (subject to change):
639 SSL_get_servername_type()
642 New CTRL codes and macros (subject to change):
644 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
645 - SSL_CTX_set_tlsext_servername_callback()
646 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
647 - SSL_CTX_set_tlsext_servername_arg()
648 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
650 openssl s_client has a new '-servername ...' option.
652 openssl s_server has new options '-servername_host ...', '-cert2 ...',
653 '-key2 ...', '-servername_fatal' (subject to change). This allows
654 testing the HostName extension for a specific single host name ('-cert'
655 and '-key' remain fallbacks for handshakes without HostName
656 negotiation). If the unrecogninzed_name alert has to be sent, this by
657 default is a warning; it becomes fatal with the '-servername_fatal'
660 [Peter Sylvester, Remy Allais, Christophe Renou]
662 *) Whirlpool hash implementation is added.
665 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
666 bn(64,32). Because of instruction set limitations it doesn't have
667 any negative impact on performance. This was done mostly in order
668 to make it possible to share assembler modules, such as bn_mul_mont
669 implementations, between 32- and 64-bit builds without hassle.
672 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
673 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
677 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
678 dedicated Montgomery multiplication procedure, is introduced.
679 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
680 "64-bit" performance on certain 32-bit targets.
683 *) New option SSL_OP_NO_COMP to disable use of compression selectively
684 in SSL structures. New SSL ctrl to set maximum send fragment size.
685 Save memory by seeting the I/O buffer sizes dynamically instead of
686 using the maximum available value.
689 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
690 in addition to the text details.
693 *) Very, very preliminary EXPERIMENTAL support for printing of general
694 ASN1 structures. This currently produces rather ugly output and doesn't
695 handle several customised structures at all.
698 *) Integrated support for PVK file format and some related formats such
699 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
700 these in the 'rsa' and 'dsa' utilities.
703 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
706 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
707 place for the (very old) "NETSCAPE" format certificates which are now
708 handled using new ASN1 code equivalents.
711 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
712 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
713 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
716 *) Modify CRL distribution points extension code to print out previously
717 unsupported fields. Enhance extension setting code to allow setting of
721 *) Add print and set support for Issuing Distribution Point CRL extension.
724 *) Change 'Configure' script to enable Camellia by default.
727 Changes between 0.9.8i and 0.9.8j [xx XXX xxxx]
729 *) Add JPAKE support, including demo authentication in s_client and
733 *) Set the comparison function in v3_addr_canonize().
734 [Rob Austein <sra@hactrn.net>]
736 *) Add support for XMPP STARTTLS in s_client.
737 [Philip Paeps <philip@freebsd.org>]
739 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
740 to ensure that even with this option, only ciphersuites in the
741 server's preference list will be accepted. (Note that the option
742 applies only when resuming a session, so the earlier behavior was
743 just about the algorithm choice for symmetric cryptography.)
746 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
748 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
749 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
752 *) The fix in 0.9.8c that supposedly got rid of unsafe
753 double-checked locking was incomplete for RSA blinding,
754 addressing just one layer of what turns out to have been
755 doubly unsafe triple-checked locking.
757 So now fix this for real by retiring the MONT_HELPER macro
758 in crypto/rsa/rsa_eay.c.
760 [Bodo Moeller; problem pointed out by Marius Schilder]
762 *) Various precautionary measures:
764 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
766 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
767 (NB: This would require knowledge of the secret session ticket key
768 to exploit, in which case you'd be SOL either way.)
770 - Change bn_nist.c so that it will properly handle input BIGNUMs
771 outside the expected range.
773 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
776 [Neel Mehta, Bodo Moeller]
778 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
779 the load fails. Useful for distros.
780 [Ben Laurie and the FreeBSD team]
782 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
785 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
788 *) Expand ENGINE to support engine supplied SSL client certificate functions.
790 This work was sponsored by Logica.
793 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
794 keystores. Support for SSL/TLS client authentication too.
795 Not compiled unless enable-capieng specified to Configure.
797 This work was sponsored by Logica.
800 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
801 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
802 attribute creation routines such as certifcate requests and PKCS#12
806 Changes between 0.9.8g and 0.9.8h [28 May 2008]
808 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
809 handshake which could lead to a cilent crash as found using the
810 Codenomicon TLS test suite (CVE-2008-1672)
811 [Steve Henson, Mark Cox]
813 *) Fix double free in TLS server name extensions which could lead to
814 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
817 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
819 Clear the error queue to ensure that error entries left from
820 older function calls do not interfere with the correct operation.
821 [Lutz Jaenicke, Erik de Castro Lopo]
823 *) Remove root CA certificates of commercial CAs:
825 The OpenSSL project does not recommend any specific CA and does not
826 have any policy with respect to including or excluding any CA.
827 Therefore it does not make any sense to ship an arbitrary selection
828 of root CA certificates with the OpenSSL software.
831 *) RSA OAEP patches to fix two separate invalid memory reads.
832 The first one involves inputs when 'lzero' is greater than
833 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
834 before the beginning of from). The second one involves inputs where
835 the 'db' section contains nothing but zeroes (there is a one-byte
836 invalid read after the end of 'db').
837 [Ivan Nestlerode <inestlerode@us.ibm.com>]
839 *) Partial backport from 0.9.9-dev:
841 Introduce bn_mul_mont (dedicated Montgomery multiplication
842 procedure) as a candidate for BIGNUM assembler implementation.
843 While 0.9.9-dev uses assembler for various architectures, only
844 x86_64 is available by default here in the 0.9.8 branch, and
845 32-bit x86 is available through a compile-time setting.
847 To try the 32-bit x86 assembler implementation, use Configure
848 option "enable-montasm" (which exists only for this backport).
850 As "enable-montasm" for 32-bit x86 disclaims code stability
851 anyway, in this constellation we activate additional code
852 backported from 0.9.9-dev for further performance improvements,
853 namely BN_from_montgomery_word. (To enable this otherwise,
854 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
856 [Andy Polyakov (backport partially by Bodo Moeller)]
858 *) Add TLS session ticket callback. This allows an application to set
859 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
860 values. This is useful for key rollover for example where several key
861 sets may exist with different names.
864 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
865 This was broken until now in 0.9.8 releases, such that the only way
866 a registered ENGINE could be used (assuming it initialises
867 successfully on the host) was to explicitly set it as the default
868 for the relevant algorithms. This is in contradiction with 0.9.7
869 behaviour and the documentation. With this fix, when an ENGINE is
870 registered into a given algorithm's table of implementations, the
871 'uptodate' flag is reset so that auto-discovery will be used next
872 time a new context for that algorithm attempts to select an
874 [Ian Lister (tweaked by Geoff Thorpe)]
876 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
877 implemention in the following ways:
879 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
882 Lack of BER streaming support means one pass streaming processing is
883 only supported if data is detached: setting the streaming flag is
884 ignored for embedded content.
886 CMS support is disabled by default and must be explicitly enabled
887 with the enable-cms configuration option.
890 *) Update the GMP engine glue to do direct copies between BIGNUM and
891 mpz_t when openssl and GMP use the same limb size. Otherwise the
892 existing "conversion via a text string export" trick is still used.
893 [Paul Sheer <paulsheer@gmail.com>]
895 *) Zlib compression BIO. This is a filter BIO which compressed and
896 uncompresses any data passed through it.
899 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
900 RFC3394 compatible AES key wrapping.
903 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
904 sets string data without copying. X509_ALGOR_set0() and
905 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
906 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
907 from an X509_ATTRIBUTE structure optionally checking it occurs only
908 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
912 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
913 to get the expected BN_FLG_CONSTTIME behavior.
914 [Bodo Moeller (Google)]
918 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
919 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
920 - added some more tests to do_tests.pl
921 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
922 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
923 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
924 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
925 - various changes to netware.pl to enable gcc-cross builds on Win32
927 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
928 - various changes to fix missing prototype warnings
929 - fixed x86nasm.pl to create correct asm files for NASM COFF output
930 - added AES, WHIRLPOOL and CPUID assembler code to build files
931 - added missing AES assembler make rules to mk1mf.pl
932 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
933 [Guenter Knauf <eflash@gmx.net>]
935 *) Implement certificate status request TLS extension defined in RFC3546.
936 A client can set the appropriate parameters and receive the encoded
937 OCSP response via a callback. A server can query the supplied parameters
938 and set the encoded OCSP response in the callback. Add simplified examples
939 to s_client and s_server.
942 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
945 + Binary incompatibility of ssl_ctx_st structure
946 + DTLS interoperation with non-compliant servers
947 + Don't call get_session_cb() without proposed session
948 + Fix ia64 assembler code
949 [Andy Polyakov, Steve Henson]
951 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
953 *) DTLS Handshake overhaul. There were longstanding issues with
954 OpenSSL DTLS implementation, which were making it impossible for
955 RFC 4347 compliant client to communicate with OpenSSL server.
956 Unfortunately just fixing these incompatibilities would "cut off"
957 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
958 server keeps tolerating non RFC compliant syntax. The opposite is
959 not true, 0.9.8f client can not communicate with earlier server.
960 This update even addresses CVE-2007-4995.
963 *) Changes to avoid need for function casts in OpenSSL: some compilers
964 (gcc 4.2 and later) reject their use.
965 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
968 *) Add RFC4507 support to OpenSSL. This includes the corrections in
969 RFC4507bis. The encrypted ticket format is an encrypted encoded
970 SSL_SESSION structure, that way new session features are automatically
973 If a client application caches session in an SSL_SESSION structure
974 support is transparent because tickets are now stored in the encoded
977 The SSL_CTX structure automatically generates keys for ticket
978 protection in servers so again support should be possible
979 with no application modification.
981 If a client or server wishes to disable RFC4507 support then the option
982 SSL_OP_NO_TICKET can be set.
984 Add a TLS extension debugging callback to allow the contents of any client
985 or server extensions to be examined.
987 This work was sponsored by Google.
990 *) Add initial support for TLS extensions, specifically for the server_name
991 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
992 have new members for a host name. The SSL data structure has an
993 additional member SSL_CTX *initial_ctx so that new sessions can be
994 stored in that context to allow for session resumption, even after the
995 SSL has been switched to a new SSL_CTX in reaction to a client's
996 server_name extension.
998 New functions (subject to change):
1000 SSL_get_servername()
1001 SSL_get_servername_type()
1004 New CTRL codes and macros (subject to change):
1006 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1007 - SSL_CTX_set_tlsext_servername_callback()
1008 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1009 - SSL_CTX_set_tlsext_servername_arg()
1010 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1012 openssl s_client has a new '-servername ...' option.
1014 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1015 '-key2 ...', '-servername_fatal' (subject to change). This allows
1016 testing the HostName extension for a specific single host name ('-cert'
1017 and '-key' remain fallbacks for handshakes without HostName
1018 negotiation). If the unrecogninzed_name alert has to be sent, this by
1019 default is a warning; it becomes fatal with the '-servername_fatal'
1022 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1024 *) Add AES and SSE2 assembly language support to VC++ build.
1027 *) Mitigate attack on final subtraction in Montgomery reduction.
1030 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1031 (which previously caused an internal error).
1034 *) Squeeze another 10% out of IGE mode when in != out.
1037 *) AES IGE mode speedup.
1038 [Dean Gaudet (Google)]
1040 *) Add the Korean symmetric 128-bit cipher SEED (see
1041 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1042 add SEED ciphersuites from RFC 4162:
1044 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1045 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1046 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1047 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1049 To minimize changes between patchlevels in the OpenSSL 0.9.8
1050 series, SEED remains excluded from compilation unless OpenSSL
1051 is configured with 'enable-seed'.
1052 [KISA, Bodo Moeller]
1054 *) Mitigate branch prediction attacks, which can be practical if a
1055 single processor is shared, allowing a spy process to extract
1056 information. For detailed background information, see
1057 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1058 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1059 and Necessary Software Countermeasures"). The core of the change
1060 are new versions BN_div_no_branch() and
1061 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1062 respectively, which are slower, but avoid the security-relevant
1063 conditional branches. These are automatically called by BN_div()
1064 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1065 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1066 remove a conditional branch.
1068 BN_FLG_CONSTTIME is the new name for the previous
1069 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1070 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1071 in the exponent causes BN_mod_exp_mont() to use the alternative
1072 implementation in BN_mod_exp_mont_consttime().) The old name
1073 remains as a deprecated alias.
1075 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1076 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1077 constant-time implementations for more than just exponentiation.
1078 Here too the old name is kept as a deprecated alias.
1080 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1081 the BN_BLINDING structure gets an independent copy of the
1082 modulus. This means that the previous "BIGNUM *m" argument to
1083 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1084 essentially becomes "const BIGNUM *m", although we can't actually
1085 change this in the header file before 0.9.9. It allows
1086 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1087 enable BN_FLG_CONSTTIME.
1089 [Matthew D Wood (Intel Corp)]
1091 *) In the SSL/TLS server implementation, be strict about session ID
1092 context matching (which matters if an application uses a single
1093 external cache for different purposes). Previously,
1094 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1095 set. This did ensure strict client verification, but meant that,
1096 with applications using a single external cache for quite
1097 different requirements, clients could circumvent ciphersuite
1098 restrictions for a given session ID context by starting a session
1099 in a different context.
1102 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1103 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1104 authentication-only ciphersuites.
1107 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1108 not complete and could lead to a possible single byte overflow
1109 (CVE-2007-5135) [Ben Laurie]
1111 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1113 *) Since AES128 and AES256 (and similarly Camellia128 and
1114 Camellia256) share a single mask bit in the logic of
1115 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1116 kludge to work properly if AES128 is available and AES256 isn't
1117 (or if Camellia128 is available and Camellia256 isn't).
1120 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1121 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1122 When a point or a seed is encoded in a BIT STRING, we need to
1123 prevent the removal of trailing zero bits to get the proper DER
1124 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1125 of a NamedBitList, for which trailing 0 bits need to be removed.)
1128 *) Have SSL/TLS server implementation tolerate "mismatched" record
1129 protocol version while receiving ClientHello even if the
1130 ClientHello is fragmented. (The server can't insist on the
1131 particular protocol version it has chosen before the ServerHello
1132 message has informed the client about his choice.)
1135 *) Add RFC 3779 support.
1136 [Rob Austein for ARIN, Ben Laurie]
1138 *) Load error codes if they are not already present instead of using a
1139 static variable. This allows them to be cleanly unloaded and reloaded.
1140 Improve header file function name parsing.
1143 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1144 or CAPABILITY handshake as required by RFCs.
1147 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1149 *) Introduce limits to prevent malicious keys being able to
1150 cause a denial of service. (CVE-2006-2940)
1151 [Steve Henson, Bodo Moeller]
1153 *) Fix ASN.1 parsing of certain invalid structures that can result
1154 in a denial of service. (CVE-2006-2937) [Steve Henson]
1156 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1157 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1159 *) Fix SSL client code which could crash if connecting to a
1160 malicious SSLv2 server. (CVE-2006-4343)
1161 [Tavis Ormandy and Will Drewry, Google Security Team]
1163 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1164 match only those. Before that, "AES256-SHA" would be interpreted
1165 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1166 the same strength classification in 0.9.7h) as we currently only
1167 have a single AES bit in the ciphersuite description bitmap.
1168 That change, however, also applied to ciphersuite strings such as
1169 "RC4-MD5" that intentionally matched multiple ciphersuites --
1170 namely, SSL 2.0 ciphersuites in addition to the more common ones
1171 from SSL 3.0/TLS 1.0.
1173 So we change the selection algorithm again: Naming an explicit
1174 ciphersuite selects this one ciphersuite, and any other similar
1175 ciphersuite (same bitmap) from *other* protocol versions.
1176 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1177 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1179 Since SSL 2.0 does not have any ciphersuites for which the
1180 128/256 bit distinction would be relevant, this works for now.
1181 The proper fix will be to use different bits for AES128 and
1182 AES256, which would have avoided the problems from the beginning;
1183 however, bits are scarce, so we can only do this in a new release
1184 (not just a patchlevel) when we can change the SSL_CIPHER
1185 definition to split the single 'unsigned long mask' bitmap into
1186 multiple values to extend the available space.
1190 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1192 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1193 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1195 *) Add AES IGE and biIGE modes.
1198 *) Change the Unix randomness entropy gathering to use poll() when
1199 possible instead of select(), since the latter has some
1200 undesirable limitations.
1201 [Darryl Miles via Richard Levitte and Bodo Moeller]
1203 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1204 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1205 cannot be implicitly activated as part of, e.g., the "AES" alias.
1206 However, please upgrade to OpenSSL 0.9.9[-dev] for
1207 non-experimental use of the ECC ciphersuites to get TLS extension
1208 support, which is required for curve and point format negotiation
1209 to avoid potential handshake problems.
1212 *) Disable rogue ciphersuites:
1214 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1215 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1216 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1218 The latter two were purportedly from
1219 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1222 Also deactivate the remaining ciphersuites from
1223 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1224 unofficial, and the ID has long expired.
1227 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1228 dual-core machines) and other potential thread-safety issues.
1231 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1232 versions), which is now available for royalty-free use
1233 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1234 Also, add Camellia TLS ciphersuites from RFC 4132.
1236 To minimize changes between patchlevels in the OpenSSL 0.9.8
1237 series, Camellia remains excluded from compilation unless OpenSSL
1238 is configured with 'enable-camellia'.
1241 *) Disable the padding bug check when compression is in use. The padding
1242 bug check assumes the first packet is of even length, this is not
1243 necessarily true if compresssion is enabled and can result in false
1244 positives causing handshake failure. The actual bug test is ancient
1245 code so it is hoped that implementations will either have fixed it by
1246 now or any which still have the bug do not support compression.
1249 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1251 *) When applying a cipher rule check to see if string match is an explicit
1252 cipher suite and only match that one cipher suite if it is.
1255 *) Link in manifests for VC++ if needed.
1256 [Austin Ziegler <halostatue@gmail.com>]
1258 *) Update support for ECC-based TLS ciphersuites according to
1259 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1260 TLS extensions, which are supported starting with the 0.9.9
1261 branch, not in the OpenSSL 0.9.8 branch).
1264 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1265 opaque EVP_CIPHER_CTX handling.
1268 *) Fixes and enhancements to zlib compression code. We now only use
1269 "zlib1.dll" and use the default __cdecl calling convention on Win32
1270 to conform with the standards mentioned here:
1271 http://www.zlib.net/DLL_FAQ.txt
1272 Static zlib linking now works on Windows and the new --with-zlib-include
1273 --with-zlib-lib options to Configure can be used to supply the location
1274 of the headers and library. Gracefully handle case where zlib library
1278 *) Several fixes and enhancements to the OID generation code. The old code
1279 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1280 handle numbers larger than ULONG_MAX, truncated printing and had a
1281 non standard OBJ_obj2txt() behaviour.
1284 *) Add support for building of engines under engine/ as shared libraries
1285 under VC++ build system.
1288 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1289 Hopefully, we will not see any false combination of paths any more.
1292 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1294 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1295 (part of SSL_OP_ALL). This option used to disable the
1296 countermeasure against man-in-the-middle protocol-version
1297 rollback in the SSL 2.0 server implementation, which is a bad
1298 idea. (CVE-2005-2969)
1300 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1301 for Information Security, National Institute of Advanced Industrial
1302 Science and Technology [AIST], Japan)]
1304 *) Add two function to clear and return the verify parameter flags.
1307 *) Keep cipherlists sorted in the source instead of sorting them at
1308 runtime, thus removing the need for a lock.
1311 *) Avoid some small subgroup attacks in Diffie-Hellman.
1312 [Nick Mathewson and Ben Laurie]
1314 *) Add functions for well-known primes.
1317 *) Extended Windows CE support.
1318 [Satoshi Nakamura and Andy Polyakov]
1320 *) Initialize SSL_METHOD structures at compile time instead of during
1321 runtime, thus removing the need for a lock.
1324 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1325 attempting to decrypt each encrypted key in turn. Add support to
1329 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1331 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1334 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1337 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1338 key into the same file any more.
1341 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1344 *) Add -utf8 command line and config file option to 'ca'.
1345 [Stefan <stf@udoma.org]
1347 *) Removed the macro des_crypt(), as it seems to conflict with some
1348 libraries. Use DES_crypt().
1351 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1352 involves renaming the source and generated shared-libs for
1353 both. The engines will accept the corrected or legacy ids
1354 ('ncipher' and '4758_cca' respectively) when binding. NB,
1355 this only applies when building 'shared'.
1356 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1358 *) Add attribute functions to EVP_PKEY structure. Modify
1359 PKCS12_create() to recognize a CSP name attribute and
1360 use it. Make -CSP option work again in pkcs12 utility.
1363 *) Add new functionality to the bn blinding code:
1364 - automatic re-creation of the BN_BLINDING parameters after
1365 a fixed number of uses (currently 32)
1366 - add new function for parameter creation
1367 - introduce flags to control the update behaviour of the
1368 BN_BLINDING parameters
1369 - hide BN_BLINDING structure
1370 Add a second BN_BLINDING slot to the RSA structure to improve
1371 performance when a single RSA object is shared among several
1375 *) Add support for DTLS.
1376 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1378 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1379 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1382 *) Remove buggy and incompletet DH cert support from
1383 ssl/ssl_rsa.c and ssl/s3_both.c
1386 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1387 the apps/openssl applications.
1390 *) Compile clean with "-Wall -Wmissing-prototypes
1391 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1392 DEBUG_SAFESTACK must also be set.
1395 *) Change ./Configure so that certain algorithms can be disabled by default.
1396 The new counterpiece to "no-xxx" is "enable-xxx".
1398 The patented RC5 and MDC2 algorithms will now be disabled unless
1399 "enable-rc5" and "enable-mdc2", respectively, are specified.
1401 (IDEA remains enabled despite being patented. This is because IDEA
1402 is frequently required for interoperability, and there is no license
1403 fee for non-commercial use. As before, "no-idea" can be used to
1404 avoid this algorithm.)
1408 *) Add processing of proxy certificates (see RFC 3820). This work was
1409 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1410 EGEE (Enabling Grids for E-science in Europe).
1413 *) RC4 performance overhaul on modern architectures/implementations, such
1414 as Intel P4, IA-64 and AMD64.
1417 *) New utility extract-section.pl. This can be used specify an alternative
1418 section number in a pod file instead of having to treat each file as
1419 a separate case in Makefile. This can be done by adding two lines to the
1422 =for comment openssl_section:XXX
1424 The blank line is mandatory.
1428 *) New arguments -certform, -keyform and -pass for s_client and s_server
1429 to allow alternative format key and certificate files and passphrase
1433 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1434 update associated structures and add various utility functions.
1436 Add new policy related verify parameters, include policy checking in
1437 standard verify code. Enhance 'smime' application with extra parameters
1438 to support policy checking and print out.
1441 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1442 Nehemiah processors. These extensions support AES encryption in hardware
1443 as well as RNG (though RNG support is currently disabled).
1444 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1446 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1449 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1450 [Andy Polyakov and a number of other people]
1452 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1453 implementation contributed by IBM.
1454 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1456 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1457 exponent rather than 'unsigned long'. There is a corresponding change to
1458 the new 'rsa_keygen' element of the RSA_METHOD structure.
1459 [Jelte Jansen, Geoff Thorpe]
1461 *) Functionality for creating the initial serial number file is now
1462 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1464 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1465 number file to 1, which is bound to cause problems. To avoid
1466 the problems while respecting compatibility between different 0.9.7
1467 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1468 CA.pl for serial number initialization. With the new release 0.9.8,
1469 we can fix the problem directly in the 'ca' utility.)
1472 *) Reduced header interdepencies by declaring more opaque objects in
1473 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1474 give fewer recursive includes, which could break lazy source code - so
1475 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1476 developers should define this symbol when building and using openssl to
1477 ensure they track the recommended behaviour, interfaces, [etc], but
1478 backwards-compatible behaviour prevails when this isn't defined.
1481 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1484 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1485 This will generate a random key of the appropriate length based on the
1486 cipher context. The EVP_CIPHER can provide its own random key generation
1487 routine to support keys of a specific form. This is used in the des and
1488 3des routines to generate a key of the correct parity. Update S/MIME
1489 code to use new functions and hence generate correct parity DES keys.
1490 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1491 valid (weak or incorrect parity).
1494 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1495 as looking them up. This is useful when the verified structure may contain
1496 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1497 present unless the new PKCS7_NO_CRL flag is asserted.
1500 *) Extend ASN1 oid configuration module. It now additionally accepts the
1503 shortName = some long name, 1.2.3.4
1506 *) Reimplemented the BN_CTX implementation. There is now no more static
1507 limitation on the number of variables it can handle nor the depth of the
1508 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1509 information can now expand as required, and rather than having a single
1510 static array of bignums, BN_CTX now uses a linked-list of such arrays
1511 allowing it to expand on demand whilst maintaining the usefulness of
1512 BN_CTX's "bundling".
1515 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1516 to allow all RSA operations to function using a single BN_CTX.
1519 *) Preliminary support for certificate policy evaluation and checking. This
1520 is initially intended to pass the tests outlined in "Conformance Testing
1521 of Relying Party Client Certificate Path Processing Logic" v1.07.
1524 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1525 remained unused and not that useful. A variety of other little bignum
1526 tweaks and fixes have also been made continuing on from the audit (see
1530 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1531 associated ASN1, EVP and SSL functions and old ASN1 macros.
1534 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1535 and this should never fail. So the return value from the use of
1536 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1537 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1540 *) BN_CTX_get() should return zero-valued bignums, providing the same
1541 initialised value as BN_new().
1542 [Geoff Thorpe, suggested by Ulf Möller]
1544 *) Support for inhibitAnyPolicy certificate extension.
1547 *) An audit of the BIGNUM code is underway, for which debugging code is
1548 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1549 is considered valid when processing BIGNUMs, and causes execution to
1550 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1551 further steps are taken to deliberately pollute unused data in BIGNUM
1552 structures to try and expose faulty code further on. For now, openssl will
1553 (in its default mode of operation) continue to tolerate the inconsistent
1554 forms that it has tolerated in the past, but authors and packagers should
1555 consider trying openssl and their own applications when compiled with
1556 these debugging symbols defined. It will help highlight potential bugs in
1557 their own code, and will improve the test coverage for OpenSSL itself. At
1558 some point, these tighter rules will become openssl's default to improve
1559 maintainability, though the assert()s and other overheads will remain only
1560 in debugging configurations. See bn.h for more details.
1561 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1563 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1564 that can only be obtained through BN_CTX_new() (which implicitly
1565 initialises it). The presence of this function only made it possible
1566 to overwrite an existing structure (and cause memory leaks).
1569 *) Because of the callback-based approach for implementing LHASH as a
1570 template type, lh_insert() adds opaque objects to hash-tables and
1571 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1572 to clean up those corresponding objects before destroying the hash table
1573 (and losing the object pointers). So some over-zealous constifications in
1574 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1575 objects as "const" and the lh_doall[_arg] callback wrappers are not
1576 prototyped to have "const" restrictions on the object pointers they are
1577 given (and so aren't required to cast them away any more).
1580 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1581 (speed) prefers to use its own implementation. The two implementations
1582 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1583 its object type properly exposed (MS_TM) instead of casting to/from "char
1584 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1585 aren't necessarily the greatest nomenclatures - but this is what was used
1586 internally to the implementation so I've used that for now.
1589 *) Ensure that deprecated functions do not get compiled when
1590 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1591 the self-tests were still using deprecated key-generation functions so
1592 these have been updated also.
1595 *) Reorganise PKCS#7 code to separate the digest location functionality
1596 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1597 New function PKCS7_set_digest() to set the digest type for PKCS#7
1598 digestedData type. Add additional code to correctly generate the
1599 digestedData type and add support for this type in PKCS7 initialization
1603 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1604 structure of type "other".
1607 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1608 sure the loop does correctly stop and breaking ("division by zero")
1609 modulus operations are not performed. The (pre-generated) prime
1610 table crypto/bn/bn_prime.h was already correct, but it could not be
1611 re-generated on some platforms because of the "division by zero"
1612 situation in the script.
1613 [Ralf S. Engelschall]
1615 *) Update support for ECC-based TLS ciphersuites according to
1616 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1617 SHA-1 now is only used for "small" curves (where the
1618 representation of a field element takes up to 24 bytes); for
1619 larger curves, the field element resulting from ECDH is directly
1620 used as premaster secret.
1621 [Douglas Stebila (Sun Microsystems Laboratories)]
1623 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1624 curve secp160r1 to the tests.
1625 [Douglas Stebila (Sun Microsystems Laboratories)]
1627 *) Add the possibility to load symbols globally with DSO.
1628 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1630 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1631 control of the error stack.
1634 *) Add support for STORE in ENGINE.
1637 *) Add the STORE type. The intention is to provide a common interface
1638 to certificate and key stores, be they simple file-based stores, or
1639 HSM-type store, or LDAP stores, or...
1640 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1643 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1644 pass a list of arguments to any function as well as provide a way
1645 for a function to pass data back to the caller.
1648 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1649 works like BUF_strdup() but can be used to duplicate a portion of
1650 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1654 *) Add the function sk_find_ex() which works like sk_find(), but will
1655 return an index to an element even if an exact match couldn't be
1656 found. The index is guaranteed to point at the element where the
1657 searched-for key would be inserted to preserve sorting order.
1660 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1661 takes an extra flags argument for optional functionality. Currently,
1662 the following flags are defined:
1664 OBJ_BSEARCH_VALUE_ON_NOMATCH
1665 This one gets OBJ_bsearch_ex() to return a pointer to the first
1666 element where the comparing function returns a negative or zero
1669 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1670 This one gets OBJ_bsearch_ex() to return a pointer to the first
1671 element where the comparing function returns zero. This is useful
1672 if there are more than one element where the comparing function
1676 *) Make it possible to create self-signed certificates with 'openssl ca'
1677 in such a way that the self-signed certificate becomes part of the
1678 CA database and uses the same mechanisms for serial number generation
1679 as all other certificate signing. The new flag '-selfsign' enables
1680 this functionality. Adapt CA.sh and CA.pl.in.
1683 *) Add functionality to check the public key of a certificate request
1684 against a given private. This is useful to check that a certificate
1685 request can be signed by that key (self-signing).
1688 *) Make it possible to have multiple active certificates with the same
1689 subject in the CA index file. This is done only if the keyword
1690 'unique_subject' is set to 'no' in the main CA section (default
1691 if 'CA_default') of the configuration file. The value is saved
1692 with the database itself in a separate index attribute file,
1693 named like the index file with '.attr' appended to the name.
1696 *) Generate muti valued AVAs using '+' notation in config files for
1700 *) Support for nameConstraints certificate extension.
1703 *) Support for policyConstraints certificate extension.
1706 *) Support for policyMappings certificate extension.
1709 *) Make sure the default DSA_METHOD implementation only uses its
1710 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1711 and change its own handlers to be NULL so as to remove unnecessary
1712 indirection. This lets alternative implementations fallback to the
1713 default implementation more easily.
1716 *) Support for directoryName in GeneralName related extensions
1720 *) Make it possible to link applications using Makefile.shared.
1721 Make that possible even when linking against static libraries!
1724 *) Support for single pass processing for S/MIME signing. This now
1725 means that S/MIME signing can be done from a pipe, in addition
1726 cleartext signing (multipart/signed type) is effectively streaming
1727 and the signed data does not need to be all held in memory.
1729 This is done with a new flag PKCS7_STREAM. When this flag is set
1730 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1731 is done after the data is output (and digests calculated) in
1732 SMIME_write_PKCS7().
1735 *) Add full support for -rpath/-R, both in shared libraries and
1736 applications, at least on the platforms where it's known how
1740 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1741 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1742 will now compute a table of multiples of the generator that
1743 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1744 faster (notably in the case of a single point multiplication,
1745 scalar * generator).
1746 [Nils Larsch, Bodo Moeller]
1748 *) IPv6 support for certificate extensions. The various extensions
1749 which use the IP:a.b.c.d can now take IPv6 addresses using the
1750 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1754 *) Added an ENGINE that implements RSA by performing private key
1755 exponentiations with the GMP library. The conversions to and from
1756 GMP's mpz_t format aren't optimised nor are any montgomery forms
1757 cached, and on x86 it appears OpenSSL's own performance has caught up.
1758 However there are likely to be other architectures where GMP could
1759 provide a boost. This ENGINE is not built in by default, but it can be
1760 specified at Configure time and should be accompanied by the necessary
1761 linker additions, eg;
1762 ./config -DOPENSSL_USE_GMP -lgmp
1765 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1766 testing availability of engines with "-t" - the old behaviour is
1767 produced by increasing the feature's verbosity with "-tt".
1770 *) ECDSA routines: under certain error conditions uninitialized BN objects
1771 could be freed. Solution: make sure initialization is performed early
1772 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1776 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1777 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1778 software implementations. For DSA and DH, parameter generation can
1779 also be overriden by providing the appropriate method callbacks.
1782 *) Change the "progress" mechanism used in key-generation and
1783 primality testing to functions that take a new BN_GENCB pointer in
1784 place of callback/argument pairs. The new API functions have "_ex"
1785 postfixes and the older functions are reimplemented as wrappers for
1786 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1787 declarations of the old functions to help (graceful) attempts to
1788 migrate to the new functions. Also, the new key-generation API
1789 functions operate on a caller-supplied key-structure and return
1790 success/failure rather than returning a key or NULL - this is to
1791 help make "keygen" another member function of RSA_METHOD etc.
1793 Example for using the new callback interface:
1795 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1799 BN_GENCB_set(&my_cb, my_callback, my_arg);
1801 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1802 /* For the meaning of a, b in calls to my_callback(), see the
1803 * documentation of the function that calls the callback.
1804 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1805 * my_callback should return 1 if it wants BN_is_prime_ex()
1806 * to continue, or 0 to stop.
1811 *) Change the ZLIB compression method to be stateful, and make it
1812 available to TLS with the number defined in
1813 draft-ietf-tls-compression-04.txt.
1816 *) Add the ASN.1 structures and functions for CertificatePair, which
1817 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1819 CertificatePair ::= SEQUENCE {
1820 forward [0] Certificate OPTIONAL,
1821 reverse [1] Certificate OPTIONAL,
1822 -- at least one of the pair shall be present -- }
1824 Also implement the PEM functions to read and write certificate
1825 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1827 This needed to be defined, mostly for the sake of the LDAP
1828 attribute crossCertificatePair, but may prove useful elsewhere as
1832 *) Make it possible to inhibit symlinking of shared libraries in
1833 Makefile.shared, for Cygwin's sake.
1836 *) Extend the BIGNUM API by creating a function
1837 void BN_set_negative(BIGNUM *a, int neg);
1838 and a macro that behave like
1839 int BN_is_negative(const BIGNUM *a);
1841 to avoid the need to access 'a->neg' directly in applications.
1844 *) Implement fast modular reduction for pseudo-Mersenne primes
1845 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1846 EC_GROUP_new_curve_GFp() will now automatically use this
1848 [Nils Larsch <nla@trustcenter.de>]
1850 *) Add new lock type (CRYPTO_LOCK_BN).
1853 *) Change the ENGINE framework to automatically load engines
1854 dynamically from specific directories unless they could be
1855 found to already be built in or loaded. Move all the
1856 current engines except for the cryptodev one to a new
1858 The engines in engines/ are built as shared libraries if
1859 the "shared" options was given to ./Configure or ./config.
1860 Otherwise, they are inserted in libcrypto.a.
1861 /usr/local/ssl/engines is the default directory for dynamic
1862 engines, but that can be overriden at configure time through
1863 the usual use of --prefix and/or --openssldir, and at run
1864 time with the environment variable OPENSSL_ENGINES.
1865 [Geoff Thorpe and Richard Levitte]
1867 *) Add Makefile.shared, a helper makefile to build shared
1868 libraries. Addapt Makefile.org.
1871 *) Add version info to Win32 DLLs.
1872 [Peter 'Luna' Runestig" <peter@runestig.com>]
1874 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1875 can be added using this API to created arbitrary PKCS#12
1876 files while avoiding the low level API.
1878 New options to PKCS12_create(), key or cert can be NULL and
1879 will then be omitted from the output file. The encryption
1880 algorithm NIDs can be set to -1 for no encryption, the mac
1881 iteration count can be set to 0 to omit the mac.
1883 Enhance pkcs12 utility by making the -nokeys and -nocerts
1884 options work when creating a PKCS#12 file. New option -nomac
1885 to omit the mac, NONE can be set for an encryption algorithm.
1886 New code is modified to use the enhanced PKCS12_create()
1887 instead of the low level API.
1890 *) Extend ASN1 encoder to support indefinite length constructed
1891 encoding. This can output sequences tags and octet strings in
1892 this form. Modify pk7_asn1.c to support indefinite length
1893 encoding. This is experimental and needs additional code to
1894 be useful, such as an ASN1 bio and some enhanced streaming
1897 Extend template encode functionality so that tagging is passed
1898 down to the template encoder.
1901 *) Let 'openssl req' fail if an argument to '-newkey' is not
1902 recognized instead of using RSA as a default.
1905 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1906 As these are not official, they are not included in "ALL";
1907 the "ECCdraft" ciphersuite group alias can be used to select them.
1908 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1910 *) Add ECDH engine support.
1911 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1913 *) Add ECDH in new directory crypto/ecdh/.
1914 [Douglas Stebila (Sun Microsystems Laboratories)]
1916 *) Let BN_rand_range() abort with an error after 100 iterations
1917 without success (which indicates a broken PRNG).
1920 *) Change BN_mod_sqrt() so that it verifies that the input value
1921 is really the square of the return value. (Previously,
1922 BN_mod_sqrt would show GIGO behaviour.)
1925 *) Add named elliptic curves over binary fields from X9.62, SECG,
1926 and WAP/WTLS; add OIDs that were still missing.
1928 [Sheueling Chang Shantz and Douglas Stebila
1929 (Sun Microsystems Laboratories)]
1931 *) Extend the EC library for elliptic curves over binary fields
1932 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1935 EC_GF2m_simple_method
1939 EC_GROUP_new_curve_GF2m
1940 EC_GROUP_set_curve_GF2m
1941 EC_GROUP_get_curve_GF2m
1942 EC_POINT_set_affine_coordinates_GF2m
1943 EC_POINT_get_affine_coordinates_GF2m
1944 EC_POINT_set_compressed_coordinates_GF2m
1946 Point compression for binary fields is disabled by default for
1947 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1950 As binary polynomials are represented as BIGNUMs, various members
1951 of the EC_GROUP and EC_POINT data structures can be shared
1952 between the implementations for prime fields and binary fields;
1953 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1954 are essentially identical to their ..._GFp counterparts.
1955 (For simplicity, the '..._GFp' prefix has been dropped from
1956 various internal method names.)
1958 An internal 'field_div' method (similar to 'field_mul' and
1959 'field_sqr') has been added; this is used only for binary fields.
1961 [Sheueling Chang Shantz and Douglas Stebila
1962 (Sun Microsystems Laboratories)]
1964 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1965 through methods ('mul', 'precompute_mult').
1967 The generic implementations (now internally called 'ec_wNAF_mul'
1968 and 'ec_wNAF_precomputed_mult') remain the default if these
1969 methods are undefined.
1971 [Sheueling Chang Shantz and Douglas Stebila
1972 (Sun Microsystems Laboratories)]
1974 *) New function EC_GROUP_get_degree, which is defined through
1975 EC_METHOD. For curves over prime fields, this returns the bit
1976 length of the modulus.
1978 [Sheueling Chang Shantz and Douglas Stebila
1979 (Sun Microsystems Laboratories)]
1981 *) New functions EC_GROUP_dup, EC_POINT_dup.
1982 (These simply call ..._new and ..._copy).
1984 [Sheueling Chang Shantz and Douglas Stebila
1985 (Sun Microsystems Laboratories)]
1987 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1988 Polynomials are represented as BIGNUMs (where the sign bit is not
1989 used) in the following functions [macros]:
1992 BN_GF2m_sub [= BN_GF2m_add]
1993 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1994 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1995 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1997 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1998 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1999 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2000 BN_GF2m_cmp [= BN_ucmp]
2002 (Note that only the 'mod' functions are actually for fields GF(2^m).
2003 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2005 For some functions, an the irreducible polynomial defining a
2006 field can be given as an 'unsigned int[]' with strictly
2007 decreasing elements giving the indices of those bits that are set;
2008 i.e., p[] represents the polynomial
2009 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2011 p[0] > p[1] > ... > p[k] = 0.
2012 This applies to the following functions:
2017 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2018 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2020 BN_GF2m_mod_sqrt_arr
2021 BN_GF2m_mod_solve_quad_arr
2025 Conversion can be performed by the following functions:
2030 bntest.c has additional tests for binary polynomial arithmetic.
2032 Two implementations for BN_GF2m_mod_div() are available.
2033 The default algorithm simply uses BN_GF2m_mod_inv() and
2034 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2035 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2036 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2038 [Sheueling Chang Shantz and Douglas Stebila
2039 (Sun Microsystems Laboratories)]
2041 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2042 functionality is disabled at compile-time.
2043 [Douglas Stebila <douglas.stebila@sun.com>]
2045 *) Change default behaviour of 'openssl asn1parse' so that more
2046 information is visible when viewing, e.g., a certificate:
2048 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2049 mode the content of non-printable OCTET STRINGs is output in a
2050 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2051 avoid the appearance of a printable string.
2052 [Nils Larsch <nla@trustcenter.de>]
2054 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2056 EC_GROUP_set_asn1_flag()
2057 EC_GROUP_get_asn1_flag()
2058 EC_GROUP_set_point_conversion_form()
2059 EC_GROUP_get_point_conversion_form()
2060 These control ASN1 encoding details:
2061 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2062 has been set to OPENSSL_EC_NAMED_CURVE.
2063 - Points are encoded in uncompressed form by default; options for
2064 asn1_for are as for point2oct, namely
2065 POINT_CONVERSION_COMPRESSED
2066 POINT_CONVERSION_UNCOMPRESSED
2067 POINT_CONVERSION_HYBRID
2069 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2072 EC_GROUP_get0_seed()
2073 EC_GROUP_get_seed_len()
2074 This is used only for ASN1 purposes (so far).
2075 [Nils Larsch <nla@trustcenter.de>]
2077 *) Add 'field_type' member to EC_METHOD, which holds the NID
2078 of the appropriate field type OID. The new function
2079 EC_METHOD_get_field_type() returns this value.
2080 [Nils Larsch <nla@trustcenter.de>]
2085 EC_POINT_point2hex()
2086 EC_POINT_hex2point()
2087 providing useful interfaces to EC_POINT_point2oct() and
2088 EC_POINT_oct2point().
2089 [Nils Larsch <nla@trustcenter.de>]
2091 *) Change internals of the EC library so that the functions
2092 EC_GROUP_set_generator()
2093 EC_GROUP_get_generator()
2094 EC_GROUP_get_order()
2095 EC_GROUP_get_cofactor()
2096 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2097 to methods, which would lead to unnecessary code duplication when
2098 adding different types of curves.
2099 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2101 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2102 arithmetic, and such that modified wNAFs are generated
2103 (which avoid length expansion in many cases).
2106 *) Add a function EC_GROUP_check_discriminant() (defined via
2107 EC_METHOD) that verifies that the curve discriminant is non-zero.
2109 Add a function EC_GROUP_check() that makes some sanity tests
2110 on a EC_GROUP, its generator and order. This includes
2111 EC_GROUP_check_discriminant().
2112 [Nils Larsch <nla@trustcenter.de>]
2114 *) Add ECDSA in new directory crypto/ecdsa/.
2116 Add applications 'openssl ecparam' and 'openssl ecdsa'
2117 (these are based on 'openssl dsaparam' and 'openssl dsa').
2119 ECDSA support is also included in various other files across the
2120 library. Most notably,
2121 - 'openssl req' now has a '-newkey ecdsa:file' option;
2122 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2123 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2124 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2125 them suitable for ECDSA where domain parameters must be
2126 extracted before the specific public key;
2127 - ECDSA engine support has been added.
2128 [Nils Larsch <nla@trustcenter.de>]
2130 *) Include some named elliptic curves, and add OIDs from X9.62,
2131 SECG, and WAP/WTLS. Each curve can be obtained from the new
2133 EC_GROUP_new_by_curve_name(),
2134 and the list of available named curves can be obtained with
2135 EC_get_builtin_curves().
2136 Also add a 'curve_name' member to EC_GROUP objects, which can be
2138 EC_GROUP_set_curve_name()
2139 EC_GROUP_get_curve_name()
2140 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2142 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2143 was actually never needed) and in BN_mul(). The removal in BN_mul()
2144 required a small change in bn_mul_part_recursive() and the addition
2145 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2146 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2147 bn_sub_words() and bn_add_words() except they take arrays with
2151 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2153 *) In the SSL/TLS server implementation, be strict about session ID
2154 context matching (which matters if an application uses a single
2155 external cache for different purposes). Previously,
2156 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2157 set. This did ensure strict client verification, but meant that,
2158 with applications using a single external cache for quite
2159 different requirements, clients could circumvent ciphersuite
2160 restrictions for a given session ID context by starting a session
2161 in a different context.
2164 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2166 *) Cleanse PEM buffers before freeing them since they may contain
2168 [Benjamin Bennett <ben@psc.edu>]
2170 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2171 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2172 authentication-only ciphersuites.
2175 *) Since AES128 and AES256 share a single mask bit in the logic of
2176 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2177 kludge to work properly if AES128 is available and AES256 isn't.
2180 *) Expand security boundary to match 1.1.1 module.
2183 *) Remove redundant features: hash file source, editing of test vectors
2184 modify fipsld to use external fips_premain.c signature.
2187 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2188 run algorithm test programs.
2191 *) Make algorithm test programs more tolerant of whitespace.
2194 *) Have SSL/TLS server implementation tolerate "mismatched" record
2195 protocol version while receiving ClientHello even if the
2196 ClientHello is fragmented. (The server can't insist on the
2197 particular protocol version it has chosen before the ServerHello
2198 message has informed the client about his choice.)
2201 *) Load error codes if they are not already present instead of using a
2202 static variable. This allows them to be cleanly unloaded and reloaded.
2205 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2207 *) Introduce limits to prevent malicious keys being able to
2208 cause a denial of service. (CVE-2006-2940)
2209 [Steve Henson, Bodo Moeller]
2211 *) Fix ASN.1 parsing of certain invalid structures that can result
2212 in a denial of service. (CVE-2006-2937) [Steve Henson]
2214 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2215 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2217 *) Fix SSL client code which could crash if connecting to a
2218 malicious SSLv2 server. (CVE-2006-4343)
2219 [Tavis Ormandy and Will Drewry, Google Security Team]
2221 *) Change ciphersuite string processing so that an explicit
2222 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2223 will no longer include "AES128-SHA"), and any other similar
2224 ciphersuite (same bitmap) from *other* protocol versions (so that
2225 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2226 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2227 changes from 0.9.8b and 0.9.8d.
2230 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2232 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2233 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2235 *) Change the Unix randomness entropy gathering to use poll() when
2236 possible instead of select(), since the latter has some
2237 undesirable limitations.
2238 [Darryl Miles via Richard Levitte and Bodo Moeller]
2240 *) Disable rogue ciphersuites:
2242 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2243 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2244 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2246 The latter two were purportedly from
2247 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2250 Also deactive the remaining ciphersuites from
2251 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2252 unofficial, and the ID has long expired.
2255 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2256 dual-core machines) and other potential thread-safety issues.
2259 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2261 *) Adapt fipsld and the build system to link against the validated FIPS
2262 module in FIPS mode.
2265 *) Fixes for VC++ 2005 build under Windows.
2268 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2269 from a Windows bash shell such as MSYS. It is autodetected from the
2270 "config" script when run from a VC++ environment. Modify standard VC++
2271 build to use fipscanister.o from the GNU make build.
2274 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2276 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2277 The value now differs depending on if you build for FIPS or not.
2278 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2279 safely run with a non-FIPSed libcrypto, as it may crash because of
2280 the difference induced by this change.
2283 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2285 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2286 (part of SSL_OP_ALL). This option used to disable the
2287 countermeasure against man-in-the-middle protocol-version
2288 rollback in the SSL 2.0 server implementation, which is a bad
2289 idea. (CVE-2005-2969)
2291 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2292 for Information Security, National Institute of Advanced Industrial
2293 Science and Technology [AIST], Japan)]
2295 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2296 mainly for FIPS compliance and not fully integrated at this stage.
2299 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2300 the exponentiation using a fixed-length exponent. (Otherwise,
2301 the information leaked through timing could expose the secret key
2302 after many signatures; cf. Bleichenbacher's attack on DSA with
2306 *) Make a new fixed-window mod_exp implementation the default for
2307 RSA, DSA, and DH private-key operations so that the sequence of
2308 squares and multiplies and the memory access pattern are
2309 independent of the particular secret key. This will mitigate
2310 cache-timing and potential related attacks.
2312 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2313 and this is automatically used by BN_mod_exp_mont() if the new flag
2314 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2315 will use this BN flag for private exponents unless the flag
2316 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2317 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2319 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2321 *) Change the client implementation for SSLv23_method() and
2322 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2323 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2324 (Previously, the SSL 2.0 backwards compatible Client Hello
2325 message format would be used even with SSL_OP_NO_SSLv2.)
2328 *) Add support for smime-type MIME parameter in S/MIME messages which some
2332 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2333 a threadsafe manner. Modify rsa code to use new function and add calls
2334 to dsa and dh code (which had race conditions before).
2337 *) Include the fixed error library code in the C error file definitions
2338 instead of fixing them up at runtime. This keeps the error code
2339 structures constant.
2342 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2344 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2347 *) Fixes for newer kerberos headers. NB: the casts are needed because
2348 the 'length' field is signed on one version and unsigned on another
2349 with no (?) obvious way to tell the difference, without these VC++
2350 complains. Also the "definition" of FAR (blank) is no longer included
2351 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2352 some needed definitions.
2355 *) Undo Cygwin change.
2358 *) Added support for proxy certificates according to RFC 3820.
2359 Because they may be a security thread to unaware applications,
2360 they must be explicitely allowed in run-time. See
2361 docs/HOWTO/proxy_certificates.txt for further information.
2364 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2366 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2367 server and client random values. Previously
2368 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2369 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2371 This change has negligible security impact because:
2373 1. Server and client random values still have 24 bytes of pseudo random
2376 2. Server and client random values are sent in the clear in the initial
2379 3. The master secret is derived using the premaster secret (48 bytes in
2380 size for static RSA ciphersuites) as well as client server and random
2383 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2386 [Stephen Henson, reported by UK NISCC]
2388 *) Use Windows randomness collection on Cygwin.
2391 *) Fix hang in EGD/PRNGD query when communication socket is closed
2392 prematurely by EGD/PRNGD.
2393 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2395 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2398 *) Back-port of selected performance improvements from development
2399 branch, as well as improved support for PowerPC platforms.
2402 *) Add lots of checks for memory allocation failure, error codes to indicate
2403 failure and freeing up memory if a failure occurs.
2404 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2406 *) Add new -passin argument to dgst.
2409 *) Perform some character comparisons of different types in X509_NAME_cmp:
2410 this is needed for some certificates that reencode DNs into UTF8Strings
2411 (in violation of RFC3280) and can't or wont issue name rollover
2415 *) Make an explicit check during certificate validation to see that
2416 the CA setting in each certificate on the chain is correct. As a
2417 side effect always do the following basic checks on extensions,
2418 not just when there's an associated purpose to the check:
2420 - if there is an unhandled critical extension (unless the user
2421 has chosen to ignore this fault)
2422 - if the path length has been exceeded (if one is set at all)
2423 - that certain extensions fit the associated purpose (if one has
2427 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2429 *) Avoid a race condition when CRLs are checked in a multi threaded
2430 environment. This would happen due to the reordering of the revoked
2431 entries during signature checking and serial number lookup. Now the
2432 encoding is cached and the serial number sort performed under a lock.
2433 Add new STACK function sk_is_sorted().
2436 *) Add Delta CRL to the extension code.
2439 *) Various fixes to s3_pkt.c so alerts are sent properly.
2440 [David Holmes <d.holmes@f5.com>]
2442 *) Reduce the chances of duplicate issuer name and serial numbers (in
2443 violation of RFC3280) using the OpenSSL certificate creation utilities.
2444 This is done by creating a random 64 bit value for the initial serial
2445 number when a serial number file is created or when a self signed
2446 certificate is created using 'openssl req -x509'. The initial serial
2447 number file is created using 'openssl x509 -next_serial' in CA.pl
2448 rather than being initialized to 1.
2451 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2453 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2454 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2455 [Joe Orton, Steve Henson]
2457 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2459 [Joe Orton, Steve Henson]
2461 *) Make it possible to have multiple active certificates with the same
2462 subject in the CA index file. This is done only if the keyword
2463 'unique_subject' is set to 'no' in the main CA section (default
2464 if 'CA_default') of the configuration file. The value is saved
2465 with the database itself in a separate index attribute file,
2466 named like the index file with '.attr' appended to the name.
2469 *) X509 verify fixes. Disable broken certificate workarounds when
2470 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2471 keyUsage extension present. Don't accept CRLs with unhandled critical
2472 extensions: since verify currently doesn't process CRL extensions this
2473 rejects a CRL with *any* critical extensions. Add new verify error codes
2477 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2478 A clarification of RFC2560 will require the use of OCTET STRINGs and
2479 some implementations cannot handle the current raw format. Since OpenSSL
2480 copies and compares OCSP nonces as opaque blobs without any attempt at
2481 parsing them this should not create any compatibility issues.
2484 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2485 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2486 this HMAC (and other) operations are several times slower than OpenSSL
2490 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2491 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2493 *) Use the correct content when signing type "other".
2496 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2498 *) Fix various bugs revealed by running the NISCC test suite:
2500 Stop out of bounds reads in the ASN1 code when presented with
2501 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2503 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2505 If verify callback ignores invalid public key errors don't try to check
2506 certificate signature with the NULL public key.
2510 *) New -ignore_err option in ocsp application to stop the server
2511 exiting on the first error in a request.
2514 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2515 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2519 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2520 extra data after the compression methods not only for TLS 1.0
2521 but also for SSL 3.0 (as required by the specification).
2522 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2524 *) Change X509_certificate_type() to mark the key as exported/exportable
2525 when it's 512 *bits* long, not 512 bytes.
2528 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2529 blocks during encryption.
2532 *) Various fixes to base64 BIO and non blocking I/O. On write
2533 flushes were not handled properly if the BIO retried. On read
2534 data was not being buffered properly and had various logic bugs.
2535 This also affects blocking I/O when the data being decoded is a
2539 *) Various S/MIME bugfixes and compatibility changes:
2540 output correct application/pkcs7 MIME type if
2541 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2542 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2543 of files as .eml work). Correctly handle very long lines in MIME
2547 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2549 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2550 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2551 a protocol version number mismatch like a decryption error
2552 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2555 *) Turn on RSA blinding by default in the default implementation
2556 to avoid a timing attack. Applications that don't want it can call
2557 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2558 They would be ill-advised to do so in most cases.
2559 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2561 *) Change RSA blinding code so that it works when the PRNG is not
2562 seeded (in this case, the secret RSA exponent is abused as
2563 an unpredictable seed -- if it is not unpredictable, there
2564 is no point in blinding anyway). Make RSA blinding thread-safe
2565 by remembering the creator's thread ID in rsa->blinding and
2566 having all other threads use local one-time blinding factors
2567 (this requires more computation than sharing rsa->blinding, but
2568 avoids excessive locking; and if an RSA object is not shared
2569 between threads, blinding will still be very fast).
2572 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2573 ENGINE as defaults for all supported algorithms irrespective of
2574 the 'flags' parameter. 'flags' is now honoured, so applications
2575 should make sure they are passing it correctly.
2578 *) Target "mingw" now allows native Windows code to be generated in
2579 the Cygwin environment as well as with the MinGW compiler.
2582 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2584 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2585 via timing by performing a MAC computation even if incorrrect
2586 block cipher padding has been found. This is a countermeasure
2587 against active attacks where the attacker has to distinguish
2588 between bad padding and a MAC verification error. (CVE-2003-0078)
2590 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2591 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2592 Martin Vuagnoux (EPFL, Ilion)]
2594 *) Make the no-err option work as intended. The intention with no-err
2595 is not to have the whole error stack handling routines removed from
2596 libcrypto, it's only intended to remove all the function name and
2597 reason texts, thereby removing some of the footprint that may not
2598 be interesting if those errors aren't displayed anyway.
2600 NOTE: it's still possible for any application or module to have it's
2601 own set of error texts inserted. The routines are there, just not
2602 used by default when no-err is given.
2605 *) Add support for FreeBSD on IA64.
2606 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2608 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2609 Kerberos function mit_des_cbc_cksum(). Before this change,
2610 the value returned by DES_cbc_cksum() was like the one from
2611 mit_des_cbc_cksum(), except the bytes were swapped.
2612 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2614 *) Allow an application to disable the automatic SSL chain building.
2615 Before this a rather primitive chain build was always performed in
2616 ssl3_output_cert_chain(): an application had no way to send the
2617 correct chain if the automatic operation produced an incorrect result.
2619 Now the chain builder is disabled if either:
2621 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2623 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2625 The reasoning behind this is that an application would not want the
2626 auto chain building to take place if extra chain certificates are
2627 present and it might also want a means of sending no additional
2628 certificates (for example the chain has two certificates and the
2632 *) Add the possibility to build without the ENGINE framework.
2633 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2635 *) Under Win32 gmtime() can return NULL: check return value in
2636 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2639 *) DSA routines: under certain error conditions uninitialized BN objects
2640 could be freed. Solution: make sure initialization is performed early
2641 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2642 Nils Larsch <nla@trustcenter.de> via PR#459)
2645 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2646 checked on reconnect on the client side, therefore session resumption
2647 could still fail with a "ssl session id is different" error. This
2648 behaviour is masked when SSL_OP_ALL is used due to
2649 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2650 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2651 followup to PR #377.
2654 *) IA-32 assembler support enhancements: unified ELF targets, support
2655 for SCO/Caldera platforms, fix for Cygwin shared build.
2658 *) Add support for FreeBSD on sparc64. As a consequence, support for
2659 FreeBSD on non-x86 processors is separate from x86 processors on
2660 the config script, much like the NetBSD support.
2661 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2663 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2665 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2668 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2669 code (06) was taken as the first octet of the session ID and the last
2670 octet was ignored consequently. As a result SSLv2 client side session
2671 caching could not have worked due to the session ID mismatch between
2673 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2677 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2678 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2682 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2683 seems that in spite of existing for more than a year, many application
2684 author have done nothing to provide the necessary callbacks, which
2685 means that this particular engine will not work properly anywhere.
2686 This is a very unfortunate situation which forces us, in the name
2687 of usability, to give the hw_ncipher.c a static lock, which is part
2689 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2690 appear in 0.9.8 or later. We EXPECT application authors to have
2691 dealt properly with this when 0.9.8 is released (unless we actually
2692 make such changes in the libcrypto locking code that changes will
2693 have to be made anyway).
2696 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2697 octets have been read, EOF or an error occurs. Without this change
2698 some truncated ASN1 structures will not produce an error.
2701 *) Disable Heimdal support, since it hasn't been fully implemented.
2702 Still give the possibility to force the use of Heimdal, but with
2703 warnings and a request that patches get sent to openssl-dev.
2706 *) Add the VC-CE target, introduce the WINCE sysname, and add
2707 INSTALL.WCE and appropriate conditionals to make it build.
2708 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2710 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2711 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2712 edit numbers of the version.
2713 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2715 *) Introduce safe string copy and catenation functions
2716 (BUF_strlcpy() and BUF_strlcat()).
2717 [Ben Laurie (CHATS) and Richard Levitte]
2719 *) Avoid using fixed-size buffers for one-line DNs.
2720 [Ben Laurie (CHATS)]
2722 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2723 resizing buffers containing secrets, and use where appropriate.
2724 [Ben Laurie (CHATS)]
2726 *) Avoid using fixed size buffers for configuration file location.
2727 [Ben Laurie (CHATS)]
2729 *) Avoid filename truncation for various CA files.
2730 [Ben Laurie (CHATS)]
2732 *) Use sizeof in preference to magic numbers.
2733 [Ben Laurie (CHATS)]
2735 *) Avoid filename truncation in cert requests.
2736 [Ben Laurie (CHATS)]
2738 *) Add assertions to check for (supposedly impossible) buffer
2740 [Ben Laurie (CHATS)]
2742 *) Don't cache truncated DNS entries in the local cache (this could
2743 potentially lead to a spoofing attack).
2744 [Ben Laurie (CHATS)]
2746 *) Fix various buffers to be large enough for hex/decimal
2747 representations in a platform independent manner.
2748 [Ben Laurie (CHATS)]
2750 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2751 resizing buffers containing secrets, and use where appropriate.
2752 [Ben Laurie (CHATS)]
2754 *) Add BIO_indent() to avoid much slightly worrying code to do
2756 [Ben Laurie (CHATS)]
2758 *) Convert sprintf()/BIO_puts() to BIO_printf().
2759 [Ben Laurie (CHATS)]
2761 *) buffer_gets() could terminate with the buffer only half
2763 [Ben Laurie (CHATS)]
2765 *) Add assertions to prevent user-supplied crypto functions from
2766 overflowing internal buffers by having large block sizes, etc.
2767 [Ben Laurie (CHATS)]
2769 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2771 [Ben Laurie (CHATS)]
2773 *) Eliminate unused copy of key in RC4.
2774 [Ben Laurie (CHATS)]
2776 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2777 [Ben Laurie (CHATS)]
2779 *) Fix off-by-one error in EGD path.
2780 [Ben Laurie (CHATS)]
2782 *) If RANDFILE path is too long, ignore instead of truncating.
2783 [Ben Laurie (CHATS)]
2785 *) Eliminate unused and incorrectly sized X.509 structure
2787 [Ben Laurie (CHATS)]
2789 *) Eliminate unused and dangerous function knumber().
2790 [Ben Laurie (CHATS)]
2792 *) Eliminate unused and dangerous structure, KSSL_ERR.
2793 [Ben Laurie (CHATS)]
2795 *) Protect against overlong session ID context length in an encoded
2796 session object. Since these are local, this does not appear to be
2798 [Ben Laurie (CHATS)]
2800 *) Change from security patch (see 0.9.6e below) that did not affect
2801 the 0.9.6 release series:
2803 Remote buffer overflow in SSL3 protocol - an attacker could
2804 supply an oversized master key in Kerberos-enabled versions.
2806 [Ben Laurie (CHATS)]
2808 *) Change the SSL kerb5 codes to match RFC 2712.
2811 *) Make -nameopt work fully for req and add -reqopt switch.
2812 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2814 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2815 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2817 *) Make sure tests can be performed even if the corresponding algorithms
2818 have been removed entirely. This was also the last step to make
2819 OpenSSL compilable with DJGPP under all reasonable conditions.
2820 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2822 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2823 to allow version independent disabling of normally unselected ciphers,
2824 which may be activated as a side-effect of selecting a single cipher.
2826 (E.g., cipher list string "RSA" enables ciphersuites that are left
2827 out of "ALL" because they do not provide symmetric encryption.
2828 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2829 [Lutz Jaenicke, Bodo Moeller]
2831 *) Add appropriate support for separate platform-dependent build
2832 directories. The recommended way to make a platform-dependent
2833 build directory is the following (tested on Linux), maybe with
2836 # Place yourself outside of the OpenSSL source tree. In
2837 # this example, the environment variable OPENSSL_SOURCE
2838 # is assumed to contain the absolute OpenSSL source directory.
2839 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2840 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2841 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2842 mkdir -p `dirname $F`
2843 ln -s $OPENSSL_SOURCE/$F $F
2846 To be absolutely sure not to disturb the source tree, a "make clean"
2847 is a good thing. If it isn't successfull, don't worry about it,
2848 it probably means the source directory is very clean.
2851 *) Make sure any ENGINE control commands make local copies of string
2852 pointers passed to them whenever necessary. Otherwise it is possible
2853 the caller may have overwritten (or deallocated) the original string
2854 data when a later ENGINE operation tries to use the stored values.
2855 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2857 *) Improve diagnostics in file reading and command-line digests.
2858 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2860 *) Add AES modes CFB and OFB to the object database. Correct an
2861 error in AES-CFB decryption.
2864 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2865 allows existing EVP_CIPHER_CTX structures to be reused after
2866 calling EVP_*Final(). This behaviour is used by encryption
2867 BIOs and some applications. This has the side effect that
2868 applications must explicitly clean up cipher contexts with
2869 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2872 *) Check the values of dna and dnb in bn_mul_recursive before calling
2873 bn_mul_comba (a non zero value means the a or b arrays do not contain
2874 n2 elements) and fallback to bn_mul_normal if either is not zero.
2877 *) Fix escaping of non-ASCII characters when using the -subj option
2878 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2881 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2882 form for "surname", serialNumber has no short form.
2883 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2884 therefore remove "mail" short name for "internet 7".
2885 The OID for unique identifiers in X509 certificates is
2886 x500UniqueIdentifier, not uniqueIdentifier.
2887 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2890 *) Add an "init" command to the ENGINE config module and auto initialize
2891 ENGINEs. Without any "init" command the ENGINE will be initialized
2892 after all ctrl commands have been executed on it. If init=1 the
2893 ENGINE is initailized at that point (ctrls before that point are run
2894 on the uninitialized ENGINE and after on the initialized one). If
2895 init=0 then the ENGINE will not be iniatialized at all.
2898 *) Fix the 'app_verify_callback' interface so that the user-defined
2899 argument is actually passed to the callback: In the
2900 SSL_CTX_set_cert_verify_callback() prototype, the callback
2901 declaration has been changed from
2904 int (*cb)(X509_STORE_CTX *,void *);
2905 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2906 i=s->ctx->app_verify_callback(&ctx)
2907 has been changed into
2908 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2910 To update applications using SSL_CTX_set_cert_verify_callback(),
2911 a dummy argument can be added to their callback functions.
2912 [D. K. Smetters <smetters@parc.xerox.com>]
2914 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2915 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2917 *) Add and OPENSSL_LOAD_CONF define which will cause
2918 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2919 This allows older applications to transparently support certain
2920 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2921 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2922 load the config file and OPENSSL_add_all_algorithms_conf() which will
2923 always load it have also been added.
2926 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2927 Adjust NIDs and EVP layer.
2928 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2930 *) Config modules support in openssl utility.
2932 Most commands now load modules from the config file,
2933 though in a few (such as version) this isn't done
2934 because it couldn't be used for anything.
2936 In the case of ca and req the config file used is
2937 the same as the utility itself: that is the -config
2938 command line option can be used to specify an
2942 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2943 use "openssl_conf" if filename is NULL use default openssl config file.
2946 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2947 config section name. Add a new flag to tolerate a missing config file
2948 and move code to CONF_modules_load_file().
2951 *) Support for crypto accelerator cards from Accelerated Encryption
2952 Processing, www.aep.ie. (Use engine 'aep')
2953 The support was copied from 0.9.6c [engine] and adapted/corrected
2954 to work with the new engine framework.
2955 [AEP Inc. and Richard Levitte]
2957 *) Support for SureWare crypto accelerator cards from Baltimore
2958 Technologies. (Use engine 'sureware')
2959 The support was copied from 0.9.6c [engine] and adapted
2960 to work with the new engine framework.
2963 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2964 make the newer ENGINE framework commands for the CHIL engine work.
2965 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2967 *) Make it possible to produce shared libraries on ReliantUNIX.
2968 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2970 *) Add the configuration target debug-linux-ppro.
2971 Make 'openssl rsa' use the general key loading routines
2972 implemented in apps.c, and make those routines able to
2973 handle the key format FORMAT_NETSCAPE and the variant
2975 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2977 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2978 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2980 *) Add -keyform to rsautl, and document -engine.
2981 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2983 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2984 BIO_R_NO_SUCH_FILE error code rather than the generic
2985 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2988 *) Add new functions
2990 ERR_peek_last_error_line
2991 ERR_peek_last_error_line_data.
2992 These are similar to
2995 ERR_peek_error_line_data,
2996 but report on the latest error recorded rather than the first one
2997 still in the error queue.
2998 [Ben Laurie, Bodo Moeller]
3000 *) default_algorithms option in ENGINE config module. This allows things
3002 default_algorithms = ALL
3003 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3006 *) Prelminary ENGINE config module.
3009 *) New experimental application configuration code.
3012 *) Change the AES code to follow the same name structure as all other
3013 symmetric ciphers, and behave the same way. Move everything to
3014 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3015 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3017 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3018 [Ben Laurie and Theo de Raadt]
3020 *) Add option to output public keys in req command.
3021 [Massimiliano Pala madwolf@openca.org]
3023 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3024 (up to about 10% better than before for P-192 and P-224).
3027 *) New functions/macros
3029 SSL_CTX_set_msg_callback(ctx, cb)
3030 SSL_CTX_set_msg_callback_arg(ctx, arg)
3031 SSL_set_msg_callback(ssl, cb)
3032 SSL_set_msg_callback_arg(ssl, arg)
3034 to request calling a callback function
3036 void cb(int write_p, int version, int content_type,
3037 const void *buf, size_t len, SSL *ssl, void *arg)
3039 whenever a protocol message has been completely received
3040 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3041 protocol version according to which the SSL library interprets
3042 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3043 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3044 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3045 specification (change_cipher_spec(20), alert(21), handshake(22)).
3046 'buf' and 'len' point to the actual message, 'ssl' to the
3047 SSL object, and 'arg' is the application-defined value set by
3048 SSL[_CTX]_set_msg_callback_arg().
3050 'openssl s_client' and 'openssl s_server' have new '-msg' options
3051 to enable a callback that displays all protocol messages.
3054 *) Change the shared library support so shared libraries are built as
3055 soon as the corresponding static library is finished, and thereby get
3056 openssl and the test programs linked against the shared library.
3057 This still only happens when the keyword "shard" has been given to
3058 the configuration scripts.
3060 NOTE: shared library support is still an experimental thing, and
3061 backward binary compatibility is still not guaranteed.
3062 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3064 *) Add support for Subject Information Access extension.
3065 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3067 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3068 additional bytes when new memory had to be allocated, not just
3069 when reusing an existing buffer.
3072 *) New command line and configuration option 'utf8' for the req command.
3073 This allows field values to be specified as UTF8 strings.
3076 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3077 runs for the former and machine-readable output for the latter.
3080 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3081 of the e-mail address in the DN (i.e., it will go into a certificate
3082 extension only). The new configuration file option 'email_in_dn = no'
3083 has the same effect.
3084 [Massimiliano Pala madwolf@openca.org]
3086 *) Change all functions with names starting with des_ to be starting
3087 with DES_ instead. Add wrappers that are compatible with libdes,
3088 but are named _ossl_old_des_*. Finally, add macros that map the
3089 des_* symbols to the corresponding _ossl_old_des_* if libdes
3090 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3091 desired, the des_* symbols will be mapped to DES_*, with one
3094 Since we provide two compatibility mappings, the user needs to
3095 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3096 compatibility is desired. The default (i.e., when that macro
3097 isn't defined) is OpenSSL 0.9.6c compatibility.
3099 There are also macros that enable and disable the support of old
3100 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3101 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3102 are defined, the default will apply: to support the old des routines.
3104 In either case, one must include openssl/des.h to get the correct
3105 definitions. Do not try to just include openssl/des_old.h, that
3108 NOTE: This is a major break of an old API into a new one. Software
3109 authors are encouraged to switch to the DES_ style functions. Some
3110 time in the future, des_old.h and the libdes compatibility functions
3111 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3112 default), and then completely removed.
3115 *) Test for certificates which contain unsupported critical extensions.
3116 If such a certificate is found during a verify operation it is
3117 rejected by default: this behaviour can be overridden by either
3118 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3119 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3120 X509_supported_extension() has also been added which returns 1 if a
3121 particular extension is supported.
3124 *) Modify the behaviour of EVP cipher functions in similar way to digests
3125 to retain compatibility with existing code.
3128 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3129 compatibility with existing code. In particular the 'ctx' parameter does
3130 not have to be to be initialized before the call to EVP_DigestInit() and
3131 it is tidied up after a call to EVP_DigestFinal(). New function
3132 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3133 EVP_MD_CTX_copy() changed to not require the destination to be
3134 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3135 requires the destination to be valid.
3137 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3138 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3141 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3142 so that complete 'Handshake' protocol structures are kept in memory
3143 instead of overwriting 'msg_type' and 'length' with 'body' data.
3146 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3147 [Massimo Santin via Richard Levitte]
3149 *) Major restructuring to the underlying ENGINE code. This includes
3150 reduction of linker bloat, separation of pure "ENGINE" manipulation
3151 (initialisation, etc) from functionality dealing with implementations
3152 of specific crypto iterfaces. This change also introduces integrated
3153 support for symmetric ciphers and digest implementations - so ENGINEs
3154 can now accelerate these by providing EVP_CIPHER and EVP_MD
3155 implementations of their own. This is detailed in crypto/engine/README
3156 as it couldn't be adequately described here. However, there are a few
3157 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3158 were changed in the original introduction of ENGINE code have now
3159 reverted back - the hooking from this code to ENGINE is now a good
3160 deal more passive and at run-time, operations deal directly with
3161 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3162 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3163 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3164 they were not being used by the framework as there is no concept of a
3165 BIGNUM_METHOD and they could not be generalised to the new
3166 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3167 ENGINE_cpy() has been removed as it cannot be consistently defined in
3171 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3174 *) Change mkdef.pl to sort symbols that get the same entry number,
3175 and make sure the automatically generated functions ERR_load_*
3176 become part of libeay.num as well.
3179 *) New function SSL_renegotiate_pending(). This returns true once
3180 renegotiation has been requested (either SSL_renegotiate() call
3181 or HelloRequest/ClientHello receveived from the peer) and becomes
3182 false once a handshake has been completed.
3183 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3184 sends a HelloRequest, but does not ensure that a handshake takes
3185 place. SSL_renegotiate_pending() is useful for checking if the
3186 client has followed the request.)
3189 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3190 By default, clients may request session resumption even during
3191 renegotiation (if session ID contexts permit); with this option,
3192 session resumption is possible only in the first handshake.
3194 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3195 more bits available for options that should not be part of
3196 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3199 *) Add some demos for certificate and certificate request creation.
3202 *) Make maximum certificate chain size accepted from the peer application
3203 settable (SSL*_get/set_max_cert_list()), as proposed by
3204 "Douglas E. Engert" <deengert@anl.gov>.
3207 *) Add support for shared libraries for Unixware-7
3208 (Boyd Lynn Gerber <gerberb@zenez.com>).
3211 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3212 be done prior to destruction. Use this to unload error strings from
3213 ENGINEs that load their own error strings. NB: This adds two new API
3214 functions to "get" and "set" this destroy handler in an ENGINE.
3217 *) Alter all existing ENGINE implementations (except "openssl" and
3218 "openbsd") to dynamically instantiate their own error strings. This
3219 makes them more flexible to be built both as statically-linked ENGINEs
3220 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3221 Also, add stub code to each that makes building them as self-contained
3222 shared-libraries easier (see README.ENGINE).
3225 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3226 implementations into applications that are completely implemented in
3227 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3228 commands that can be used to configure what shared-library to load and
3229 to control aspects of the way it is handled. Also, made an update to
3230 the README.ENGINE file that brings its information up-to-date and
3231 provides some information and instructions on the "dynamic" ENGINE
3232 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3235 *) Make it possible to unload ranges of ERR strings with a new
3236 "ERR_unload_strings" function.
3239 *) Add a copy() function to EVP_MD.
3242 *) Make EVP_MD routines take a context pointer instead of just the
3243 md_data void pointer.
3246 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3247 that the digest can only process a single chunk of data
3248 (typically because it is provided by a piece of
3249 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3250 is only going to provide a single chunk of data, and hence the
3251 framework needn't accumulate the data for oneshot drivers.
3254 *) As with "ERR", make it possible to replace the underlying "ex_data"
3255 functions. This change also alters the storage and management of global
3256 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3257 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3258 index counters. The API functions that use this state have been changed
3259 to take a "class_index" rather than pointers to the class's local STACK
3260 and counter, and there is now an API function to dynamically create new
3261 classes. This centralisation allows us to (a) plug a lot of the
3262 thread-safety problems that existed, and (b) makes it possible to clean
3263 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3264 such data would previously have always leaked in application code and
3265 workarounds were in place to make the memory debugging turn a blind eye
3266 to it. Application code that doesn't use this new function will still
3267 leak as before, but their memory debugging output will announce it now
3268 rather than letting it slide.
3270 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3271 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3272 has a return value to indicate success or failure.
3275 *) Make it possible to replace the underlying "ERR" functions such that the
3276 global state (2 LHASH tables and 2 locks) is only used by the "default"
3277 implementation. This change also adds two functions to "get" and "set"
3278 the implementation prior to it being automatically set the first time
3279 any other ERR function takes place. Ie. an application can call "get",
3280 pass the return value to a module it has just loaded, and that module
3281 can call its own "set" function using that value. This means the
3282 module's "ERR" operations will use (and modify) the error state in the
3283 application and not in its own statically linked copy of OpenSSL code.
3286 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3287 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3288 the operation, and provides a more encapsulated way for external code
3289 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3290 to use these functions rather than manually incrementing the counts.
3292 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3295 *) Add EVP test program.
3298 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3301 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3302 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3303 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3304 These allow a CRL to be built without having to access X509_CRL fields
3305 directly. Modify 'ca' application to use new functions.
3308 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3309 bug workarounds. Rollback attack detection is a security feature.
3310 The problem will only arise on OpenSSL servers when TLSv1 is not
3311 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3312 Software authors not wanting to support TLSv1 will have special reasons
3313 for their choice and can explicitly enable this option.
3314 [Bodo Moeller, Lutz Jaenicke]
3316 *) Rationalise EVP so it can be extended: don't include a union of
3317 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3318 (similar to those existing for EVP_CIPHER_CTX).
3323 EVP_MD_CTX_init(&md); /* new function call */
3324 EVP_DigestInit(&md, EVP_sha1());
3325 EVP_DigestUpdate(&md, in, len);
3326 EVP_DigestFinal(&md, out, NULL);
3327 EVP_MD_CTX_cleanup(&md); /* new function call */
3331 *) Make DES key schedule conform to the usual scheme, as well as
3332 correcting its structure. This means that calls to DES functions
3333 now have to pass a pointer to a des_key_schedule instead of a
3334 plain des_key_schedule (which was actually always a pointer
3337 des_key_schedule ks;
3339 des_set_key_checked(..., &ks);
3340 des_ncbc_encrypt(..., &ks, ...);
3342 (Note that a later change renames 'des_...' into 'DES_...'.)
3345 *) Initial reduction of linker bloat: the use of some functions, such as
3346 PEM causes large amounts of unused functions to be linked in due to
3347 poor organisation. For example pem_all.c contains every PEM function
3348 which has a knock on effect of linking in large amounts of (unused)
3349 ASN1 code. Grouping together similar functions and splitting unrelated
3350 functions prevents this.
3353 *) Cleanup of EVP macros.
3356 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3357 correct _ecb suffix.
3360 *) Add initial OCSP responder support to ocsp application. The
3361 revocation information is handled using the text based index
3362 use by the ca application. The responder can either handle
3363 requests generated internally, supplied in files (for example
3364 via a CGI script) or using an internal minimal server.
3367 *) Add configuration choices to get zlib compression for TLS.
3370 *) Changes to Kerberos SSL for RFC 2712 compliance:
3371 1. Implemented real KerberosWrapper, instead of just using
3372 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3373 2. Implemented optional authenticator field of KerberosWrapper.
3375 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3376 and authenticator structs; see crypto/krb5/.
3378 Generalized Kerberos calls to support multiple Kerberos libraries.
3379 [Vern Staats <staatsvr@asc.hpc.mil>,
3380 Jeffrey Altman <jaltman@columbia.edu>
3381 via Richard Levitte]
3383 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3384 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3385 values for each of the key sizes rather than having just
3386 parameters (and 'speed' generating keys each time).
3389 *) Speed up EVP routines.
3392 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3393 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3394 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3395 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3397 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3398 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3399 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3402 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3404 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3407 *) Added the OS2-EMX target.
3408 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3410 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3411 to support NCONF routines in extension code. New function CONF_set_nconf()
3412 to allow functions which take an NCONF to also handle the old LHASH
3413 structure: this means that the old CONF compatible routines can be
3414 retained (in particular wrt extensions) without having to duplicate the
3415 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3418 *) Enhance the general user interface with mechanisms for inner control
3419 and with possibilities to have yes/no kind of prompts.
3422 *) Change all calls to low level digest routines in the library and
3423 applications to use EVP. Add missing calls to HMAC_cleanup() and
3424 don't assume HMAC_CTX can be copied using memcpy().
3425 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3427 *) Add the possibility to control engines through control names but with
3428 arbitrary arguments instead of just a string.
3429 Change the key loaders to take a UI_METHOD instead of a callback
3430 function pointer. NOTE: this breaks binary compatibility with earlier
3431 versions of OpenSSL [engine].
3432 Adapt the nCipher code for these new conditions and add a card insertion
3436 *) Enhance the general user interface with mechanisms to better support
3437 dialog box interfaces, application-defined prompts, the possibility
3438 to use defaults (for example default passwords from somewhere else)
3439 and interrupts/cancellations.
3442 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3443 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3446 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3447 tidy up some unnecessarily weird code in 'sk_new()').
3448 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3450 *) Change the key loading routines for ENGINEs to use the same kind
3451 callback (pem_password_cb) as all other routines that need this
3455 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3456 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3457 than this minimum value is recommended.
3460 *) New random seeder for OpenVMS, using the system process statistics
3461 that are easily reachable.
3464 *) Windows apparently can't transparently handle global
3465 variables defined in DLLs. Initialisations such as:
3467 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3469 wont compile. This is used by the any applications that need to
3470 declare their own ASN1 modules. This was fixed by adding the option
3471 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3472 needed for static libraries under Win32.
3475 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3476 setting of purpose and trust fields. New X509_STORE trust and
3477 purpose functions and tidy up setting in other SSL functions.
3480 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3481 structure. These are inherited by X509_STORE_CTX when it is
3482 initialised. This allows various defaults to be set in the
3483 X509_STORE structure (such as flags for CRL checking and custom
3484 purpose or trust settings) for functions which only use X509_STORE_CTX
3485 internally such as S/MIME.
3487 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3488 trust settings if they are not set in X509_STORE. This allows X509_STORE
3489 purposes and trust (in S/MIME for example) to override any set by default.
3491 Add command line options for CRL checking to smime, s_client and s_server
3495 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3496 are set then the CRL is looked up in the X509_STORE structure and
3497 its validity and signature checked, then if the certificate is found
3498 in the CRL the verify fails with a revoked error.
3500 Various new CRL related callbacks added to X509_STORE_CTX structure.
3502 Command line options added to 'verify' application to support this.
3504 This needs some additional work, such as being able to handle multiple
3505 CRLs with different times, extension based lookup (rather than just
3506 by subject name) and ultimately more complete V2 CRL extension
3510 *) Add a general user interface API (crypto/ui/). This is designed
3511 to replace things like des_read_password and friends (backward
3512 compatibility functions using this new API are provided).
3513 The purpose is to remove prompting functions from the DES code
3514 section as well as provide for prompting through dialog boxes in
3515 a window system and the like.
3518 *) Add "ex_data" support to ENGINE so implementations can add state at a
3519 per-structure level rather than having to store it globally.
3522 *) Make it possible for ENGINE structures to be copied when retrieved by
3523 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3524 This causes the "original" ENGINE structure to act like a template,
3525 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3526 operational state can be localised to each ENGINE structure, despite the
3527 fact they all share the same "methods". New ENGINE structures returned in
3528 this case have no functional references and the return value is the single
3529 structural reference. This matches the single structural reference returned
3530 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3534 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3535 needs to match any other type at all we need to manually clear the
3539 *) Changes to the "openssl engine" utility to include;
3540 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3541 about an ENGINE's available control commands.
3542 - executing control commands from command line arguments using the
3543 '-pre' and '-post' switches. '-post' is only used if '-t' is
3544 specified and the ENGINE is successfully initialised. The syntax for
3545 the individual commands are colon-separated, for example;
3546 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3549 *) New dynamic control command support for ENGINEs. ENGINEs can now
3550 declare their own commands (numbers), names (strings), descriptions,
3551 and input types for run-time discovery by calling applications. A
3552 subset of these commands are implicitly classed as "executable"
3553 depending on their input type, and only these can be invoked through
3554 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3555 can be based on user input, config files, etc). The distinction is
3556 that "executable" commands cannot return anything other than a boolean
3557 result and can only support numeric or string input, whereas some
3558 discoverable commands may only be for direct use through
3559 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3560 pointers, or other custom uses. The "executable" commands are to
3561 support parameterisations of ENGINE behaviour that can be
3562 unambiguously defined by ENGINEs and used consistently across any
3563 OpenSSL-based application. Commands have been added to all the
3564 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3565 control over shared-library paths without source code alterations.
3568 *) Changed all ENGINE implementations to dynamically allocate their
3569 ENGINEs rather than declaring them statically. Apart from this being
3570 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3571 this also allows the implementations to compile without using the
3572 internal engine_int.h header.
3575 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3576 'const' value. Any code that should be able to modify a RAND_METHOD
3577 should already have non-const pointers to it (ie. they should only
3578 modify their own ones).
3581 *) Made a variety of little tweaks to the ENGINE code.
3582 - "atalla" and "ubsec" string definitions were moved from header files
3583 to C code. "nuron" string definitions were placed in variables
3584 rather than hard-coded - allowing parameterisation of these values
3585 later on via ctrl() commands.
3586 - Removed unused "#if 0"'d code.
3587 - Fixed engine list iteration code so it uses ENGINE_free() to release
3588 structural references.
3589 - Constified the RAND_METHOD element of ENGINE structures.
3590 - Constified various get/set functions as appropriate and added
3591 missing functions (including a catch-all ENGINE_cpy that duplicates
3592 all ENGINE values onto a new ENGINE except reference counts/state).
3593 - Removed NULL parameter checks in get/set functions. Setting a method
3594 or function to NULL is a way of cancelling out a previously set
3595 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3596 and doesn't justify the extra error symbols and code.
3597 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3598 flags from engine_int.h to engine.h.
3599 - Changed prototypes for ENGINE handler functions (init(), finish(),
3600 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3603 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3604 to the algorithm using long division. The binary algorithm can be
3605 used only if the modulus is odd. On 32-bit systems, it is faster
3606 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3607 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3608 up to 450 bits. In 64-bit environments, the binary algorithm
3609 appears to be advantageous for much longer moduli; here we use it
3610 for moduli up to 2048 bits.
3613 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3614 could not support the combine flag in choice fields.
3617 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3618 extensions from a certificate request to the certificate.
3621 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3622 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3623 file: this allows the display of the certificate about to be
3624 signed to be customised, to allow certain fields to be included
3625 or excluded and extension details. The old system didn't display
3626 multicharacter strings properly, omitted fields not in the policy
3627 and couldn't display additional details such as extensions.
3630 *) Function EC_POINTs_mul for multiple scalar multiplication
3631 of an arbitrary number of elliptic curve points
3632 \sum scalars[i]*points[i],
3633 optionally including the generator defined for the EC_GROUP:
3634 scalar*generator + \sum scalars[i]*points[i].
3636 EC_POINT_mul is a simple wrapper function for the typical case
3637 that the point list has just one item (besides the optional
3641 *) First EC_METHODs for curves over GF(p):
3643 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3644 operations and provides various method functions that can also
3645 operate with faster implementations of modular arithmetic.
3647 EC_GFp_mont_method() reuses most functions that are part of
3648 EC_GFp_simple_method, but uses Montgomery arithmetic.
3650 [Bodo Moeller; point addition and point doubling
3651 implementation directly derived from source code provided by
3652 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3654 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3655 crypto/ec/ec_lib.c):
3657 Curves are EC_GROUP objects (with an optional group generator)
3658 based on EC_METHODs that are built into the library.
3660 Points are EC_POINT objects based on EC_GROUP objects.
3662 Most of the framework would be able to handle curves over arbitrary
3663 finite fields, but as there are no obvious types for fields other
3664 than GF(p), some functions are limited to that for now.
3667 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3668 that the file contains a complete HTTP response.
3671 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3672 change the def and num file printf format specifier from "%-40sXXX"
3673 to "%-39s XXX". The latter will always guarantee a space after the
3674 field while the former will cause them to run together if the field
3675 is 40 of more characters long.
3678 *) Constify the cipher and digest 'method' functions and structures
3679 and modify related functions to take constant EVP_MD and EVP_CIPHER
3683 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3684 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3687 *) Modify EVP_Digest*() routines so they now return values. Although the
3688 internal software routines can never fail additional hardware versions
3692 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3694 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3695 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3698 ERR_R_NESTED_ASN1_ERROR
3700 ERR_R_MISSING_ASN1_EOS
3701 were 4 .. 9, conflicting with
3702 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3704 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3705 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3707 Add new error code 'ERR_R_INTERNAL_ERROR'.
3710 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3714 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3715 sets the subject name for a new request or supersedes the
3716 subject name in a given request. Formats that can be parsed are
3717 'CN=Some Name, OU=myOU, C=IT'
3719 'CN=Some Name/OU=myOU/C=IT'.
3721 Add options '-batch' and '-verbose' to 'openssl req'.
3722 [Massimiliano Pala <madwolf@hackmasters.net>]
3724 *) Introduce the possibility to access global variables through
3725 functions on platform were that's the best way to handle exporting
3726 global variables in shared libraries. To enable this functionality,
3727 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3728 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3729 is normally done by Configure or something similar).
3731 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3732 in the source file (foo.c) like this:
3734 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3735 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3737 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3738 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3740 OPENSSL_DECLARE_GLOBAL(int,foo);
3741 #define foo OPENSSL_GLOBAL_REF(foo)
3742 OPENSSL_DECLARE_GLOBAL(double,bar);
3743 #define bar OPENSSL_GLOBAL_REF(bar)
3745 The #defines are very important, and therefore so is including the
3746 header file everywhere where the defined globals are used.
3748 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3749 of ASN.1 items, but that structure is a bit different.
3751 The largest change is in util/mkdef.pl which has been enhanced with
3752 better and easier to understand logic to choose which symbols should
3753 go into the Windows .def files as well as a number of fixes and code
3754 cleanup (among others, algorithm keywords are now sorted
3755 lexicographically to avoid constant rewrites).
3758 *) In BN_div() keep a copy of the sign of 'num' before writing the
3759 result to 'rm' because if rm==num the value will be overwritten
3760 and produce the wrong result if 'num' is negative: this caused
3761 problems with BN_mod() and BN_nnmod().
3764 *) Function OCSP_request_verify(). This checks the signature on an
3765 OCSP request and verifies the signer certificate. The signer
3766 certificate is just checked for a generic purpose and OCSP request
3770 *) Add OCSP_check_validity() function to check the validity of OCSP
3771 responses. OCSP responses are prepared in real time and may only
3772 be a few seconds old. Simply checking that the current time lies
3773 between thisUpdate and nextUpdate max reject otherwise valid responses
3774 caused by either OCSP responder or client clock inaccuracy. Instead
3775 we allow thisUpdate and nextUpdate to fall within a certain period of
3776 the current time. The age of the response can also optionally be
3777 checked. Two new options -validity_period and -status_age added to
3781 *) If signature or public key algorithm is unrecognized print out its
3782 OID rather that just UNKNOWN.
3785 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3786 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3787 ID to be generated from the issuer certificate alone which can then be
3788 passed to OCSP_id_issuer_cmp().
3791 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3792 ASN1 modules to export functions returning ASN1_ITEM pointers
3793 instead of the ASN1_ITEM structures themselves. This adds several
3794 new macros which allow the underlying ASN1 function/structure to
3795 be accessed transparently. As a result code should not use ASN1_ITEM
3796 references directly (such as &X509_it) but instead use the relevant
3797 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3798 use of the new ASN1 code on platforms where exporting structures
3799 is problematical (for example in shared libraries) but exporting
3800 functions returning pointers to structures is not.
3803 *) Add support for overriding the generation of SSL/TLS session IDs.
3804 These callbacks can be registered either in an SSL_CTX or per SSL.
3805 The purpose of this is to allow applications to control, if they wish,
3806 the arbitrary values chosen for use as session IDs, particularly as it
3807 can be useful for session caching in multiple-server environments. A
3808 command-line switch for testing this (and any client code that wishes
3809 to use such a feature) has been added to "s_server".
3810 [Geoff Thorpe, Lutz Jaenicke]
3812 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3813 of the form '#if defined(...) || defined(...) || ...' and
3814 '#if !defined(...) && !defined(...) && ...'. This also avoids
3815 the growing number of special cases it was previously handling.
3818 *) Make all configuration macros available for application by making
3819 sure they are available in opensslconf.h, by giving them names starting
3820 with "OPENSSL_" to avoid conflicts with other packages and by making
3821 sure e_os2.h will cover all platform-specific cases together with
3823 Additionally, it is now possible to define configuration/platform-
3824 specific names (called "system identities"). In the C code, these
3825 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3826 macro with the name beginning with "OPENSSL_SYS_", which is determined
3827 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3831 *) New option -set_serial to 'req' and 'x509' this allows the serial
3832 number to use to be specified on the command line. Previously self
3833 signed certificates were hard coded with serial number 0 and the
3834 CA options of 'x509' had to use a serial number in a file which was
3838 *) New options to 'ca' utility to support V2 CRL entry extensions.
3839 Currently CRL reason, invalidity date and hold instruction are
3840 supported. Add new CRL extensions to V3 code and some new objects.
3843 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3844 disable standard block padding (aka PKCS#5 padding) in the EVP
3845 API, which was previously mandatory. This means that the data is
3846 not padded in any way and so the total length much be a multiple
3847 of the block size, otherwise an error occurs.
3850 *) Initial (incomplete) OCSP SSL support.
3853 *) New function OCSP_parse_url(). This splits up a URL into its host,
3854 port and path components: primarily to parse OCSP URLs. New -url
3855 option to ocsp utility.
3858 *) New nonce behavior. The return value of OCSP_check_nonce() now
3859 reflects the various checks performed. Applications can decide
3860 whether to tolerate certain situations such as an absent nonce
3861 in a response when one was present in a request: the ocsp application
3862 just prints out a warning. New function OCSP_add1_basic_nonce()
3863 this is to allow responders to include a nonce in a response even if
3864 the request is nonce-less.
3867 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3868 skipped when using openssl x509 multiple times on a single input file,
3869 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3872 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3873 set string type: to handle setting ASN1_TIME structures. Fix ca
3874 utility to correctly initialize revocation date of CRLs.
3877 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3878 the clients preferred ciphersuites and rather use its own preferences.
3879 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3880 Internet Explorer by ensuring unchanged hash method during stepup.
3881 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3884 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3885 to aes and add a new 'exist' option to print out symbols that don't
3889 *) Additional options to ocsp utility to allow flags to be set and
3890 additional certificates supplied.
3893 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3894 OCSP client a number of certificate to only verify the response
3898 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3899 handle the new API. Currently only ECB, CBC modes supported. Add new
3902 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3903 Encryption Standard (AES) Ciphersuites for Transport Layer
3904 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3905 not enabled by default and were not part of the "ALL" ciphersuite
3906 alias because they were not yet official; they could be
3907 explicitly requested by specifying the "AESdraft" ciphersuite
3908 group alias. In the final release of OpenSSL 0.9.7, the group
3909 alias is called "AES" and is part of "ALL".)
3910 [Ben Laurie, Steve Henson, Bodo Moeller]
3912 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3913 request to response.
3916 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3917 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3918 extract information from a certificate request. OCSP_response_create()
3919 creates a response and optionally adds a basic response structure.
3920 OCSP_basic_add1_status() adds a complete single response to a basic
3921 response and returns the OCSP_SINGLERESP structure just added (to allow
3922 extensions to be included for example). OCSP_basic_add1_cert() adds a
3923 certificate to a basic response and OCSP_basic_sign() signs a basic
3924 response with various flags. New helper functions ASN1_TIME_check()
3925 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3926 (converts ASN1_TIME to GeneralizedTime).
3929 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3930 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3931 structure from a certificate. X509_pubkey_digest() digests the public_key
3932 contents: this is used in various key identifiers.
3935 *) Make sk_sort() tolerate a NULL argument.
3936 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3938 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3939 passed by the function are trusted implicitly. If any of them signed the
3940 response then it is assumed to be valid and is not verified.
3943 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3944 to data. This was previously part of the PKCS7 ASN1 code. This
3945 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3946 [Steve Henson, reported by Kenneth R. Robinette
3947 <support@securenetterm.com>]
3949 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3950 routines: without these tracing memory leaks is very painful.
3951 Fix leaks in PKCS12 and PKCS7 routines.
3954 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3955 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3956 effectively meant GeneralizedTime would never be used. Now it
3957 is initialised to -1 but X509_time_adj() now has to check the value
3958 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3959 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3960 [Steve Henson, reported by Kenneth R. Robinette
3961 <support@securenetterm.com>]
3963 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3964 result in a zero length in the ASN1_INTEGER structure which was
3965 not consistent with the structure when d2i_ASN1_INTEGER() was used
3966 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3967 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3968 where it did not print out a minus for negative ASN1_INTEGER.
3971 *) Add summary printout to ocsp utility. The various functions which
3972 convert status values to strings have been renamed to:
3973 OCSP_response_status_str(), OCSP_cert_status_str() and
3974 OCSP_crl_reason_str() and are no longer static. New options
3975 to verify nonce values and to disable verification. OCSP response
3976 printout format cleaned up.
3979 *) Add additional OCSP certificate checks. These are those specified
3980 in RFC2560. This consists of two separate checks: the CA of the
3981 certificate being checked must either be the OCSP signer certificate
3982 or the issuer of the OCSP signer certificate. In the latter case the
3983 OCSP signer certificate must contain the OCSP signing extended key
3984 usage. This check is performed by attempting to match the OCSP
3985 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3986 in the OCSP_CERTID structures of the response.
3989 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3990 and related routines. This uses the standard OpenSSL certificate
3991 verify routines to perform initial checks (just CA validity) and
3992 to obtain the certificate chain. Then additional checks will be
3993 performed on the chain. Currently the root CA is checked to see
3994 if it is explicitly trusted for OCSP signing. This is used to set
3995 a root CA as a global signing root: that is any certificate that
3996 chains to that CA is an acceptable OCSP signing certificate.
3999 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4000 extensions from a separate configuration file.
4001 As when reading extensions from the main configuration file,
4002 the '-extensions ...' option may be used for specifying the
4004 [Massimiliano Pala <madwolf@comune.modena.it>]
4006 *) New OCSP utility. Allows OCSP requests to be generated or
4007 read. The request can be sent to a responder and the output
4008 parsed, outputed or printed in text form. Not complete yet:
4009 still needs to check the OCSP response validity.
4012 *) New subcommands for 'openssl ca':
4013 'openssl ca -status <serial>' prints the status of the cert with
4014 the given serial number (according to the index file).
4015 'openssl ca -updatedb' updates the expiry status of certificates
4017 [Massimiliano Pala <madwolf@comune.modena.it>]
4019 *) New '-newreq-nodes' command option to CA.pl. This is like
4020 '-newreq', but calls 'openssl req' with the '-nodes' option
4021 so that the resulting key is not encrypted.
4022 [Damien Miller <djm@mindrot.org>]
4024 *) New configuration for the GNU Hurd.
4025 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4027 *) Initial code to implement OCSP basic response verify. This
4028 is currently incomplete. Currently just finds the signer's
4029 certificate and verifies the signature on the response.
4032 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4033 value of OPENSSLDIR. This is available via the new '-d' option
4034 to 'openssl version', and is also included in 'openssl version -a'.
4037 *) Allowing defining memory allocation callbacks that will be given
4038 file name and line number information in additional arguments
4039 (a const char* and an int). The basic functionality remains, as
4040 well as the original possibility to just replace malloc(),
4041 realloc() and free() by functions that do not know about these
4042 additional arguments. To register and find out the current
4043 settings for extended allocation functions, the following
4044 functions are provided:
4046 CRYPTO_set_mem_ex_functions
4047 CRYPTO_set_locked_mem_ex_functions
4048 CRYPTO_get_mem_ex_functions
4049 CRYPTO_get_locked_mem_ex_functions
4051 These work the same way as CRYPTO_set_mem_functions and friends.
4052 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4053 extended allocation function is enabled.
4054 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4055 a conventional allocation function is enabled.
4056 [Richard Levitte, Bodo Moeller]
4058 *) Finish off removing the remaining LHASH function pointer casts.
4059 There should no longer be any prototype-casting required when using
4060 the LHASH abstraction, and any casts that remain are "bugs". See
4061 the callback types and macros at the head of lhash.h for details
4062 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4065 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4066 If /dev/[u]random devices are not available or do not return enough
4067 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4069 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4070 /etc/entropy will be queried once each in this sequence, quering stops
4071 when enough entropy was collected without querying more sockets.
4074 *) Change the Unix RAND_poll() variant to be able to poll several
4075 random devices, as specified by DEVRANDOM, until a sufficient amount
4076 of data has been collected. We spend at most 10 ms on each file
4077 (select timeout) and read in non-blocking mode. DEVRANDOM now
4078 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4079 (previously it was just the string "/dev/urandom"), so on typical
4080 platforms the 10 ms delay will never occur.
4081 Also separate out the Unix variant to its own file, rand_unix.c.
4082 For VMS, there's a currently-empty rand_vms.c.
4085 *) Move OCSP client related routines to ocsp_cl.c. These
4086 provide utility functions which an application needing
4087 to issue a request to an OCSP responder and analyse the
4088 response will typically need: as opposed to those which an
4089 OCSP responder itself would need which will be added later.
4091 OCSP_request_sign() signs an OCSP request with an API similar
4092 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4093 response. OCSP_response_get1_basic() extracts basic response
4094 from response. OCSP_resp_find_status(): finds and extracts status
4095 information from an OCSP_CERTID structure (which will be created
4096 when the request structure is built). These are built from lower
4097 level functions which work on OCSP_SINGLERESP structures but
4098 wont normally be used unless the application wishes to examine
4099 extensions in the OCSP response for example.
4101 Replace nonce routines with a pair of functions.
4102 OCSP_request_add1_nonce() adds a nonce value and optionally
4103 generates a random value. OCSP_check_nonce() checks the
4104 validity of the nonce in an OCSP response.
4107 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4108 This doesn't copy the supplied OCSP_CERTID and avoids the
4109 need to free up the newly created id. Change return type
4110 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4111 This can then be used to add extensions to the request.
4112 Deleted OCSP_request_new(), since most of its functionality
4113 is now in OCSP_REQUEST_new() (and the case insensitive name
4114 clash) apart from the ability to set the request name which
4115 will be added elsewhere.
4118 *) Update OCSP API. Remove obsolete extensions argument from
4119 various functions. Extensions are now handled using the new
4120 OCSP extension code. New simple OCSP HTTP function which
4121 can be used to send requests and parse the response.
4124 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4125 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4126 uses the special reorder version of SET OF to sort the attributes
4127 and reorder them to match the encoded order. This resolves a long
4128 standing problem: a verify on a PKCS7 structure just after signing
4129 it used to fail because the attribute order did not match the
4130 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4131 it uses the received order. This is necessary to tolerate some broken
4132 software that does not order SET OF. This is handled by encoding
4133 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4134 to produce the required SET OF.
4137 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4138 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4139 files to get correct declarations of the ASN.1 item variables.
4142 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4143 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4144 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4145 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4146 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4147 ASN1_ITEM and no wrapper functions.
4150 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4151 replace the old function pointer based I/O routines. Change most of
4152 the *_d2i_bio() and *_d2i_fp() functions to use these.
4155 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4156 lines, recognice more "algorithms" that can be deselected, and make
4157 it complain about algorithm deselection that isn't recognised.
4160 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4161 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4162 to use new functions. Add NO_ASN1_OLD which can be set to remove
4163 some old style ASN1 functions: this can be used to determine if old
4164 code will still work when these eventually go away.
4167 *) New extension functions for OCSP structures, these follow the
4168 same conventions as certificates and CRLs.
4171 *) New function X509V3_add1_i2d(). This automatically encodes and
4172 adds an extension. Its behaviour can be customised with various
4173 flags to append, replace or delete. Various wrappers added for
4174 certifcates and CRLs.
4177 *) Fix to avoid calling the underlying ASN1 print routine when
4178 an extension cannot be parsed. Correct a typo in the
4179 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4182 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4183 entries for variables.
4186 *) Add functionality to apps/openssl.c for detecting locking
4187 problems: As the program is single-threaded, all we have
4188 to do is register a locking callback using an array for
4189 storing which locks are currently held by the program.
4192 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4193 SSL_get_ex_data_X509_STORE_idx(), which is used in
4194 ssl_verify_cert_chain() and thus can be called at any time
4195 during TLS/SSL handshakes so that thread-safety is essential.
4196 Unfortunately, the ex_data design is not at all suited
4197 for multi-threaded use, so it probably should be abolished.
4200 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4201 [Broadcom, tweaked and integrated by Geoff Thorpe]
4203 *) Move common extension printing code to new function
4204 X509V3_print_extensions(). Reorganise OCSP print routines and
4205 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4208 *) New function X509_signature_print() to remove duplication in some
4212 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4213 set (this was treated exactly the same as SET OF previously). This
4214 is used to reorder the STACK representing the structure to match the
4215 encoding. This will be used to get round a problem where a PKCS7
4216 structure which was signed could not be verified because the STACK
4217 order did not reflect the encoded order.
4220 *) Reimplement the OCSP ASN1 module using the new code.
4223 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4224 for its ASN1 operations. The old style function pointers still exist
4225 for now but they will eventually go away.
4228 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4229 completely replaces the old ASN1 functionality with a table driven
4230 encoder and decoder which interprets an ASN1_ITEM structure describing
4231 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4232 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4233 has also been converted to the new form.
4236 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4237 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4238 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4239 for negative moduli.
4242 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4243 of not touching the result's sign bit.
4246 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4250 *) Changed the LHASH code to use prototypes for callbacks, and created
4251 macros to declare and implement thin (optionally static) functions
4252 that provide type-safety and avoid function pointer casting for the
4253 type-specific callbacks.
4256 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4258 [Veers Staats <staatsvr@asc.hpc.mil>,
4259 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4261 *) Reformat the FAQ so the different questions and answers can be divided
4262 in sections depending on the subject.
4265 *) Have the zlib compression code load ZLIB.DLL dynamically under
4269 *) New function BN_mod_sqrt for computing square roots modulo a prime
4270 (using the probabilistic Tonelli-Shanks algorithm unless
4271 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4272 be handled deterministically).
4273 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4275 *) Make BN_mod_inverse faster by explicitly handling small quotients
4276 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4277 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4280 *) New function BN_kronecker.
4283 *) Fix BN_gcd so that it works on negative inputs; the result is
4284 positive unless both parameters are zero.
4285 Previously something reasonably close to an infinite loop was
4286 possible because numbers could be growing instead of shrinking
4287 in the implementation of Euclid's algorithm.
4290 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4291 sign of the number in question.
4293 Fix BN_is_word(a,w) to work correctly for w == 0.
4295 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4296 because its test if the absolute value of 'a' equals 'w'.
4297 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4298 it exists mostly for use in the implementations of BN_is_zero(),
4299 BN_is_one(), and BN_is_word().
4302 *) New function BN_swap.
4305 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4306 the exponentiation functions are more likely to produce reasonable
4307 results on negative inputs.
4310 *) Change BN_mod_mul so that the result is always non-negative.
4311 Previously, it could be negative if one of the factors was negative;
4312 I don't think anyone really wanted that behaviour.
4315 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4316 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4317 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4318 and add new functions:
4327 BN_mod_lshift1_quick
4331 These functions always generate non-negative results.
4333 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4334 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4336 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4337 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4338 be reduced modulo m.
4339 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4342 The following entry accidentily appeared in the CHANGES file
4343 distributed with OpenSSL 0.9.7. The modifications described in
4344 it do *not* apply to OpenSSL 0.9.7.
4346 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4347 was actually never needed) and in BN_mul(). The removal in BN_mul()
4348 required a small change in bn_mul_part_recursive() and the addition
4349 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4350 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4351 bn_sub_words() and bn_add_words() except they take arrays with
4356 *) In 'openssl passwd', verify passwords read from the terminal
4357 unless the '-salt' option is used (which usually means that
4358 verification would just waste user's time since the resulting
4359 hash is going to be compared with some given password hash)
4360 or the new '-noverify' option is used.
4362 This is an incompatible change, but it does not affect
4363 non-interactive use of 'openssl passwd' (passwords on the command
4364 line, '-stdin' option, '-in ...' option) and thus should not
4368 *) Remove all references to RSAref, since there's no more need for it.
4371 *) Make DSO load along a path given through an environment variable
4372 (SHLIB_PATH) with shl_load().
4375 *) Constify the ENGINE code as a result of BIGNUM constification.
4376 Also constify the RSA code and most things related to it. In a
4377 few places, most notable in the depth of the ASN.1 code, ugly
4378 casts back to non-const were required (to be solved at a later
4382 *) Make it so the openssl application has all engines loaded by default.
4385 *) Constify the BIGNUM routines a little more.
4388 *) Add the following functions:
4390 ENGINE_load_cswift()
4392 ENGINE_load_atalla()
4394 ENGINE_load_builtin_engines()
4396 That way, an application can itself choose if external engines that
4397 are built-in in OpenSSL shall ever be used or not. The benefit is
4398 that applications won't have to be linked with libdl or other dso
4399 libraries unless it's really needed.
4401 Changed 'openssl engine' to load all engines on demand.
4402 Changed the engine header files to avoid the duplication of some
4403 declarations (they differed!).
4406 *) 'openssl engine' can now list capabilities.
4409 *) Better error reporting in 'openssl engine'.
4412 *) Never call load_dh_param(NULL) in s_server.
4415 *) Add engine application. It can currently list engines by name and
4416 identity, and test if they are actually available.
4419 *) Improve RPM specification file by forcing symbolic linking and making
4420 sure the installed documentation is also owned by root.root.
4421 [Damien Miller <djm@mindrot.org>]
4423 *) Give the OpenSSL applications more possibilities to make use of
4424 keys (public as well as private) handled by engines.
4427 *) Add OCSP code that comes from CertCo.
4430 *) Add VMS support for the Rijndael code.
4433 *) Added untested support for Nuron crypto accelerator.
4436 *) Add support for external cryptographic devices. This code was
4437 previously distributed separately as the "engine" branch.
4438 [Geoff Thorpe, Richard Levitte]
4440 *) Rework the filename-translation in the DSO code. It is now possible to
4441 have far greater control over how a "name" is turned into a filename
4442 depending on the operating environment and any oddities about the
4443 different shared library filenames on each system.
4446 *) Support threads on FreeBSD-elf in Configure.
4449 *) Fix for SHA1 assembly problem with MASM: it produces
4450 warnings about corrupt line number information when assembling
4451 with debugging information. This is caused by the overlapping
4453 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4456 NCONF_get_number() has no error checking at all. As a replacement,
4457 NCONF_get_number_e() is defined (_e for "error checking") and is
4458 promoted strongly. The old NCONF_get_number is kept around for
4459 binary backward compatibility.
4460 Make it possible for methods to load from something other than a BIO,
4461 by providing a function pointer that is given a name instead of a BIO.
4462 For example, this could be used to load configuration data from an
4466 *) Fix for non blocking accept BIOs. Added new I/O special reason
4467 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4468 with non blocking I/O was not possible because no retry code was
4469 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4473 *) Added the beginnings of Rijndael support.
4476 *) Fix for bug in DirectoryString mask setting. Add support for
4477 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4478 to allow certificate printing to more controllable, additional
4479 'certopt' option to 'x509' to allow new printing options to be
4483 *) Clean old EAY MD5 hack from e_os.h.
4486 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4488 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4489 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4490 [Joe Orton, Steve Henson]
4492 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4494 *) Fix additional bug revealed by the NISCC test suite:
4496 Stop bug triggering large recursion when presented with
4497 certain ASN.1 tags (CVE-2003-0851)
4500 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4502 *) Fix various bugs revealed by running the NISCC test suite:
4504 Stop out of bounds reads in the ASN1 code when presented with
4505 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4507 If verify callback ignores invalid public key errors don't try to check
4508 certificate signature with the NULL public key.
4512 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4513 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4517 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4518 extra data after the compression methods not only for TLS 1.0
4519 but also for SSL 3.0 (as required by the specification).
4520 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4522 *) Change X509_certificate_type() to mark the key as exported/exportable
4523 when it's 512 *bits* long, not 512 bytes.
4526 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4528 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4529 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4530 a protocol version number mismatch like a decryption error
4531 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4534 *) Turn on RSA blinding by default in the default implementation
4535 to avoid a timing attack. Applications that don't want it can call
4536 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4537 They would be ill-advised to do so in most cases.
4538 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4540 *) Change RSA blinding code so that it works when the PRNG is not
4541 seeded (in this case, the secret RSA exponent is abused as
4542 an unpredictable seed -- if it is not unpredictable, there
4543 is no point in blinding anyway). Make RSA blinding thread-safe
4544 by remembering the creator's thread ID in rsa->blinding and
4545 having all other threads use local one-time blinding factors
4546 (this requires more computation than sharing rsa->blinding, but
4547 avoids excessive locking; and if an RSA object is not shared
4548 between threads, blinding will still be very fast).
4551 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4553 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4554 via timing by performing a MAC computation even if incorrrect
4555 block cipher padding has been found. This is a countermeasure
4556 against active attacks where the attacker has to distinguish
4557 between bad padding and a MAC verification error. (CVE-2003-0078)
4559 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4560 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4561 Martin Vuagnoux (EPFL, Ilion)]
4563 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4565 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4566 memory from it's contents. This is done with a counter that will
4567 place alternating values in each byte. This can be used to solve
4568 two issues: 1) the removal of calls to memset() by highly optimizing
4569 compilers, and 2) cleansing with other values than 0, since those can
4570 be read through on certain media, for example a swap space on disk.
4573 *) Bugfix: client side session caching did not work with external caching,
4574 because the session->cipher setting was not restored when reloading
4575 from the external cache. This problem was masked, when
4576 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4577 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4580 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4581 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4582 [Zeev Lieber <zeev-l@yahoo.com>]
4584 *) Undo an undocumented change introduced in 0.9.6e which caused
4585 repeated calls to OpenSSL_add_all_ciphers() and
4586 OpenSSL_add_all_digests() to be ignored, even after calling
4590 *) Change the default configuration reader to deal with last line not
4591 being properly terminated.
4594 *) Change X509_NAME_cmp() so it applies the special rules on handling
4595 DN values that are of type PrintableString, as well as RDNs of type
4596 emailAddress where the value has the type ia5String.
4597 [stefank@valicert.com via Richard Levitte]
4599 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4600 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4601 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4602 the bitwise-OR of the two for use by the majority of applications
4603 wanting this behaviour, and update the docs. The documented
4604 behaviour and actual behaviour were inconsistent and had been
4605 changing anyway, so this is more a bug-fix than a behavioural
4607 [Geoff Thorpe, diagnosed by Nadav Har'El]
4609 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4610 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4613 *) Fix initialization code race conditions in
4614 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4615 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4616 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4617 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4618 ssl2_get_cipher_by_char(),
4619 ssl3_get_cipher_by_char().
4620 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4622 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4623 the cached sessions are flushed, as the remove_cb() might use ex_data
4624 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4625 (see [openssl.org #212]).
4626 [Geoff Thorpe, Lutz Jaenicke]
4628 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4629 length, instead of the encoding length to d2i_ASN1_OBJECT.
4632 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4634 *) [In 0.9.6g-engine release:]
4635 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4636 [Lynn Gazis <lgazis@rainbow.com>]
4638 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4640 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4641 and get fix the header length calculation.
4642 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4643 Alon Kantor <alonk@checkpoint.com> (and others),
4646 *) Use proper error handling instead of 'assertions' in buffer
4647 overflow checks added in 0.9.6e. This prevents DoS (the
4648 assertions could call abort()).
4649 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4651 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4653 *) Add various sanity checks to asn1_get_length() to reject
4654 the ASN1 length bytes if they exceed sizeof(long), will appear
4655 negative or the content length exceeds the length of the
4657 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4659 *) Fix cipher selection routines: ciphers without encryption had no flags
4660 for the cipher strength set and where therefore not handled correctly
4661 by the selection routines (PR #130).
4664 *) Fix EVP_dsa_sha macro.
4668 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4669 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4670 that was added in OpenSSL 0.9.6d.
4672 As the countermeasure turned out to be incompatible with some
4673 broken SSL implementations, the new option is part of SSL_OP_ALL.
4674 SSL_OP_ALL is usually employed when compatibility with weird SSL
4675 implementations is desired (e.g. '-bugs' option to 's_client' and
4676 's_server'), so the new option is automatically set in many
4680 *) Changes in security patch:
4682 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4683 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4684 Air Force Materiel Command, USAF, under agreement number
4687 *) Add various sanity checks to asn1_get_length() to reject
4688 the ASN1 length bytes if they exceed sizeof(long), will appear
4689 negative or the content length exceeds the length of the
4690 supplied buffer. (CVE-2002-0659)
4691 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4693 *) Assertions for various potential buffer overflows, not known to
4695 [Ben Laurie (CHATS)]
4697 *) Various temporary buffers to hold ASCII versions of integers were
4698 too small for 64 bit platforms. (CVE-2002-0655)
4699 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4701 *) Remote buffer overflow in SSL3 protocol - an attacker could
4702 supply an oversized session ID to a client. (CVE-2002-0656)
4703 [Ben Laurie (CHATS)]
4705 *) Remote buffer overflow in SSL2 protocol - an attacker could
4706 supply an oversized client master key. (CVE-2002-0656)
4707 [Ben Laurie (CHATS)]
4709 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4711 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4712 encoded as NULL) with id-dsa-with-sha1.
4713 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4715 *) Check various X509_...() return values in apps/req.c.
4716 [Nils Larsch <nla@trustcenter.de>]
4718 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4719 an end-of-file condition would erronously be flagged, when the CRLF
4720 was just at the end of a processed block. The bug was discovered when
4721 processing data through a buffering memory BIO handing the data to a
4722 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4723 <ptsekov@syntrex.com> and Nedelcho Stanev.
4726 *) Implement a countermeasure against a vulnerability recently found
4727 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4728 before application data chunks to avoid the use of known IVs
4729 with data potentially chosen by the attacker.
4732 *) Fix length checks in ssl3_get_client_hello().
4735 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4736 to prevent ssl3_read_internal() from incorrectly assuming that
4737 ssl3_read_bytes() found application data while handshake
4738 processing was enabled when in fact s->s3->in_read_app_data was
4739 merely automatically cleared during the initial handshake.
4740 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4742 *) Fix object definitions for Private and Enterprise: they were not
4743 recognized in their shortname (=lowercase) representation. Extend
4744 obj_dat.pl to issue an error when using undefined keywords instead
4745 of silently ignoring the problem (Svenning Sorensen
4746 <sss@sss.dnsalias.net>).
4749 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4750 generators, i.e. generators other than 2 and 5. (Previously, the
4751 code did not properly initialise the 'add' and 'rem' values to
4752 BN_generate_prime().)
4754 In the new general case, we do not insist that 'generator' is
4755 actually a primitive root: This requirement is rather pointless;
4756 a generator of the order-q subgroup is just as good, if not
4760 *) Map new X509 verification errors to alerts. Discovered and submitted by
4761 Tom Wu <tom@arcot.com>.
4764 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4765 returning non-zero before the data has been completely received
4766 when using non-blocking I/O.
4767 [Bodo Moeller; problem pointed out by John Hughes]
4769 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4770 [Ben Laurie, Lutz Jaenicke]
4772 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4773 Yoram Zahavi <YoramZ@gilian.com>).
4776 *) Add information about CygWin 1.3 and on, and preserve proper
4777 configuration for the versions before that.
4778 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4780 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4781 check whether we deal with a copy of a session and do not delete from
4782 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4783 <izhar@checkpoint.com>.
4786 *) Do not store session data into the internal session cache, if it
4787 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4788 flag is set). Proposed by Aslam <aslam@funk.com>.
4791 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4795 *) [In 0.9.6d-engine release:]
4796 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4797 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4799 *) Add the configuration target linux-s390x.
4800 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4802 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4803 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4804 variable as an indication that a ClientHello message has been
4805 received. As the flag value will be lost between multiple
4806 invocations of ssl3_accept when using non-blocking I/O, the
4807 function may not be aware that a handshake has actually taken
4808 place, thus preventing a new session from being added to the
4811 To avoid this problem, we now set s->new_session to 2 instead of
4812 using a local variable.
4813 [Lutz Jaenicke, Bodo Moeller]
4815 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4816 if the SSL_R_LENGTH_MISMATCH error is detected.
4817 [Geoff Thorpe, Bodo Moeller]
4819 *) New 'shared_ldflag' column in Configure platform table.
4822 *) Fix EVP_CIPHER_mode macro.
4823 ["Dan S. Camper" <dan@bti.net>]
4825 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4826 type, we must throw them away by setting rr->length to 0.
4827 [D P Chang <dpc@qualys.com>]
4829 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4831 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4832 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4833 worked incorrectly for those cases where range = 10..._2 and
4834 3*range is two bits longer than range.)
4837 *) Only add signing time to PKCS7 structures if it is not already
4841 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4842 OBJ_ld_ce should be OBJ_id_ce.
4843 Also some ip-pda OIDs in crypto/objects/objects.txt were
4844 incorrect (cf. RFC 3039).
4845 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4847 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4848 returns early because it has nothing to do.
4849 [Andy Schneider <andy.schneider@bjss.co.uk>]
4851 *) [In 0.9.6c-engine release:]
4852 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4853 [Andy Schneider <andy.schneider@bjss.co.uk>]
4855 *) [In 0.9.6c-engine release:]
4856 Add support for Cryptographic Appliance's keyserver technology.
4857 (Use engine 'keyclient')
4858 [Cryptographic Appliances and Geoff Thorpe]
4860 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4861 is called via tools/c89.sh because arguments have to be
4862 rearranged (all '-L' options must appear before the first object
4864 [Richard Shapiro <rshapiro@abinitio.com>]
4866 *) [In 0.9.6c-engine release:]
4867 Add support for Broadcom crypto accelerator cards, backported
4869 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4871 *) [In 0.9.6c-engine release:]
4872 Add support for SureWare crypto accelerator cards from
4873 Baltimore Technologies. (Use engine 'sureware')
4874 [Baltimore Technologies and Mark Cox]
4876 *) [In 0.9.6c-engine release:]
4877 Add support for crypto accelerator cards from Accelerated
4878 Encryption Processing, www.aep.ie. (Use engine 'aep')
4879 [AEP Inc. and Mark Cox]
4881 *) Add a configuration entry for gcc on UnixWare.
4882 [Gary Benson <gbenson@redhat.com>]
4884 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4885 messages are stored in a single piece (fixed-length part and
4886 variable-length part combined) and fix various bugs found on the way.
4889 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4890 instead. BIO_gethostbyname() does not know what timeouts are
4891 appropriate, so entries would stay in cache even when they have
4893 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4895 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4896 faced with a pathologically small ClientHello fragment that does
4897 not contain client_version: Instead of aborting with an error,
4898 simply choose the highest available protocol version (i.e.,
4899 TLS 1.0 unless it is disabled). In practice, ClientHello
4900 messages are never sent like this, but this change gives us
4901 strictly correct behaviour at least for TLS.
4904 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4905 never resets s->method to s->ctx->method when called from within
4906 one of the SSL handshake functions.
4907 [Bodo Moeller; problem pointed out by Niko Baric]
4909 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4910 (sent using the client's version number) if client_version is
4911 smaller than the protocol version in use. Also change
4912 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4913 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4914 the client will at least see that alert.
4917 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4921 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4922 client receives HelloRequest while in a handshake.
4923 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4925 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4926 should end in 'break', not 'goto end' which circuments various
4927 cleanups done in state SSL_ST_OK. But session related stuff
4928 must be disabled for SSL_ST_OK in the case that we just sent a
4931 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4932 before just sending a HelloRequest.
4933 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4935 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4936 reveal whether illegal block cipher padding was found or a MAC
4937 verification error occured. (Neither SSLerr() codes nor alerts
4938 are directly visible to potential attackers, but the information
4939 may leak via logfiles.)
4941 Similar changes are not required for the SSL 2.0 implementation
4942 because the number of padding bytes is sent in clear for SSL 2.0,
4943 and the extra bytes are just ignored. However ssl/s2_pkt.c
4944 failed to verify that the purported number of padding bytes is in
4948 *) Add OpenUNIX-8 support including shared libraries
4949 (Boyd Lynn Gerber <gerberb@zenez.com>).
4952 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4953 'wristwatch attack' using huge encoding parameters (cf.
4954 James H. Manger's CRYPTO 2001 paper). Note that the
4955 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4956 encoding parameters and hence was not vulnerable.
4959 *) BN_sqr() bug fix.
4960 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4962 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4963 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4964 followed by modular reduction.
4965 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4967 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4968 equivalent based on BN_pseudo_rand() instead of BN_rand().
4971 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4972 This function was broken, as the check for a new client hello message
4973 to handle SGC did not allow these large messages.
4974 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4977 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4980 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4981 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4984 *) Rework the configuration and shared library support for Tru64 Unix.
4985 The configuration part makes use of modern compiler features and
4986 still retains old compiler behavior for those that run older versions
4987 of the OS. The shared library support part includes a variant that
4988 uses the RPATH feature, and is available through the special
4989 configuration target "alpha-cc-rpath", which will never be selected
4991 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4993 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4994 with the same message size as in ssl3_get_certificate_request().
4995 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4996 messages might inadvertently be reject as too long.
4997 [Petr Lampa <lampa@fee.vutbr.cz>]
4999 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5002 *) Modified SSL library such that the verify_callback that has been set
5003 specificly for an SSL object with SSL_set_verify() is actually being
5004 used. Before the change, a verify_callback set with this function was
5005 ignored and the verify_callback() set in the SSL_CTX at the time of
5006 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5007 to allow the necessary settings.
5010 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5011 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5012 done automatically (in contradiction to the requirements of the C
5013 standard). This made problems when used from OpenSSH.
5016 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5017 dh->length and always used
5019 BN_rand_range(priv_key, dh->p).
5021 BN_rand_range() is not necessary for Diffie-Hellman, and this
5022 specific range makes Diffie-Hellman unnecessarily inefficient if
5023 dh->length (recommended exponent length) is much smaller than the
5024 length of dh->p. We could use BN_rand_range() if the order of
5025 the subgroup was stored in the DH structure, but we only have
5030 BN_rand(priv_key, l, ...)
5032 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5038 RSA_eay_public_encrypt
5039 RSA_eay_private_decrypt
5040 RSA_eay_private_encrypt (signing)
5041 RSA_eay_public_decrypt (signature verification)
5043 (default implementations for RSA_public_encrypt,
5044 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5045 always reject numbers >= n.
5048 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5049 to synchronize access to 'locking_thread'. This is necessary on
5050 systems where access to 'locking_thread' (an 'unsigned long'
5051 variable) is not atomic.
5054 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5055 *before* setting the 'crypto_lock_rand' flag. The previous code had
5056 a race condition if 0 is a valid thread ID.
5057 [Travis Vitek <vitek@roguewave.com>]
5059 *) Add support for shared libraries under Irix.
5060 [Albert Chin-A-Young <china@thewrittenword.com>]
5062 *) Add configuration option to build on Linux on both big-endian and
5064 [Ralf Baechle <ralf@uni-koblenz.de>]
5066 *) Add the possibility to create shared libraries on HP-UX.
5069 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5071 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5072 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5073 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5074 PRNG state recovery was possible based on the output of
5075 one PRNG request appropriately sized to gain knowledge on
5076 'md' followed by enough consecutive 1-byte PRNG requests
5077 to traverse all of 'state'.
5079 1. When updating 'md_local' (the current thread's copy of 'md')
5080 during PRNG output generation, hash all of the previous
5081 'md_local' value, not just the half used for PRNG output.
5083 2. Make the number of bytes from 'state' included into the hash
5084 independent from the number of PRNG bytes requested.
5086 The first measure alone would be sufficient to avoid
5087 Markku-Juhani's attack. (Actually it had never occurred
5088 to me that the half of 'md_local' used for chaining was the
5089 half from which PRNG output bytes were taken -- I had always
5090 assumed that the secret half would be used.) The second
5091 measure makes sure that additional data from 'state' is never
5092 mixed into 'md_local' in small portions; this heuristically
5093 further strengthens the PRNG.
5096 *) Fix crypto/bn/asm/mips3.s.
5099 *) When only the key is given to "enc", the IV is undefined. Print out
5100 an error message in this case.
5103 *) Handle special case when X509_NAME is empty in X509 printing routines.
5106 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5107 positive and less than q.
5110 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5111 used: it isn't thread safe and the add_lock_callback should handle
5113 [Paul Rose <Paul.Rose@bridge.com>]
5115 *) Verify that incoming data obeys the block size in
5116 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5120 [Ulf Möller, Bodo Möller]
5122 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5123 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5124 when fixing the server behaviour for backwards-compatible 'client
5125 hello' messages. (Note that the attack is impractical against
5126 SSL 3.0 and TLS 1.0 anyway because length and version checking
5127 means that the probability of guessing a valid ciphertext is
5128 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5131 Before 0.9.5, the countermeasure (hide the error by generating a
5132 random 'decryption result') did not work properly because
5133 ERR_clear_error() was missing, meaning that SSL_get_error() would
5134 detect the supposedly ignored error.
5136 Both problems are now fixed.
5139 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5140 (previously it was 1024).
5143 *) Fix for compatibility mode trust settings: ignore trust settings
5144 unless some valid trust or reject settings are present.
5147 *) Fix for blowfish EVP: its a variable length cipher.
5150 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5151 parameters in DSA public key structures and return an error in the
5152 DSA routines if parameters are absent.
5155 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5156 in the current directory if neither $RANDFILE nor $HOME was set.
5157 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5158 caused some confusion to Windows users who haven't defined $HOME.
5159 Thus RAND_file_name() is changed again: e_os.h can define a
5160 DEFAULT_HOME, which will be used if $HOME is not set.
5161 For Windows, we use "C:"; on other platforms, we still require
5162 environment variables.
5164 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5165 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5166 having multiple threads call RAND_poll() concurrently.
5169 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5170 combination of a flag and a thread ID variable.
5171 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5172 flag), *other* threads can enter ssleay_add_bytes without obeying
5173 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5174 that they do not hold after the first thread unsets add_do_not_lock).
5177 *) Change bctest again: '-x' expressions are not available in all
5181 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5183 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5184 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5186 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5187 the default extension for executables, if any. Also, make the perl
5188 scripts that use symlink() to test if it really exists and use "cp"
5189 if it doesn't. All this made OpenSSL compilable and installable in
5193 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5194 If SEQUENCE is length is indefinite just set c->slen to the total
5195 amount of data available.
5196 [Steve Henson, reported by shige@FreeBSD.org]
5197 [This change does not apply to 0.9.7.]
5199 *) Change bctest to avoid here-documents inside command substitution
5200 (workaround for FreeBSD /bin/sh bug).
5201 For compatibility with Ultrix, avoid shell functions (introduced
5202 in the bctest version that searches along $PATH).
5205 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5206 with des_encrypt() defined on some operating systems, like Solaris
5210 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5211 On the Importance of Eliminating Errors in Cryptographic
5212 Computations, J. Cryptology 14 (2001) 2, 101-119,
5213 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5216 *) MIPS assembler BIGNUM division bug fix.
5219 *) Disabled incorrect Alpha assembler code.
5222 *) Fix PKCS#7 decode routines so they correctly update the length
5223 after reading an EOC for the EXPLICIT tag.
5225 [This change does not apply to 0.9.7.]
5227 *) Fix bug in PKCS#12 key generation routines. This was triggered
5228 if a 3DES key was generated with a 0 initial byte. Include
5229 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5230 (but broken) behaviour.
5233 *) Enhance bctest to search for a working bc along $PATH and print
5235 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5237 *) Fix memory leaks in err.c: free err_data string if necessary;
5238 don't write to the wrong index in ERR_set_error_data.
5241 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5245 *) Replace rdtsc with _emit statements for VC++ version 5.
5246 [Jeremy Cooper <jeremy@baymoo.org>]
5248 *) Make it possible to reuse SSLv2 sessions.
5251 *) In copy_email() check for >= 0 as a return value for
5252 X509_NAME_get_index_by_NID() since 0 is a valid index.
5253 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5255 *) Avoid coredump with unsupported or invalid public keys by checking if
5256 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5257 PKCS7_verify() fails with non detached data.
5260 *) Don't use getenv in library functions when run as setuid/setgid.
5261 New function OPENSSL_issetugid().
5264 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5265 due to incorrect handling of multi-threading:
5267 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5269 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5271 3. Count how many times MemCheck_off() has been called so that
5272 nested use can be treated correctly. This also avoids
5273 inband-signalling in the previous code (which relied on the
5274 assumption that thread ID 0 is impossible).
5277 *) Add "-rand" option also to s_client and s_server.
5280 *) Fix CPU detection on Irix 6.x.
5281 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5282 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5284 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5287 [This change does not apply to 0.9.7.]
5289 *) Use the cached encoding of an X509_NAME structure rather than
5290 copying it. This is apparently the reason for the libsafe "errors"
5291 but the code is actually correct.
5294 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5295 Bleichenbacher's DSA attack.
5296 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5297 to be set and top=0 forces the highest bit to be set; top=-1 is new
5298 and leaves the highest bit random.
5299 [Ulf Moeller, Bodo Moeller]
5301 *) In the NCONF_...-based implementations for CONF_... queries
5302 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5303 a temporary CONF structure with the data component set to NULL
5304 (which gives segmentation faults in lh_retrieve).
5305 Instead, use NULL for the CONF pointer in CONF_get_string and
5306 CONF_get_number (which may use environment variables) and directly
5307 return NULL from CONF_get_section.
5310 *) Fix potential buffer overrun for EBCDIC.
5313 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5314 keyUsage if basicConstraints absent for a CA.
5317 *) Make SMIME_write_PKCS7() write mail header values with a format that
5318 is more generally accepted (no spaces before the semicolon), since
5319 some programs can't parse those values properly otherwise. Also make
5320 sure BIO's that break lines after each write do not create invalid
5324 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5325 macros previously used would not encode an empty SEQUENCE OF
5326 and break the signature.
5328 [This change does not apply to 0.9.7.]
5330 *) Zero the premaster secret after deriving the master secret in
5334 *) Add some EVP_add_digest_alias registrations (as found in
5335 OpenSSL_add_all_digests()) to SSL_library_init()
5336 aka OpenSSL_add_ssl_algorithms(). This provides improved
5337 compatibility with peers using X.509 certificates
5338 with unconventional AlgorithmIdentifier OIDs.
5341 *) Fix for Irix with NO_ASM.
5342 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5344 *) ./config script fixes.
5345 [Ulf Moeller, Richard Levitte]
5347 *) Fix 'openssl passwd -1'.
5350 *) Change PKCS12_key_gen_asc() so it can cope with non null
5351 terminated strings whose length is passed in the passlen
5352 parameter, for example from PEM callbacks. This was done
5353 by adding an extra length parameter to asc2uni().
5354 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5356 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5357 call failed, free the DSA structure.
5360 *) Fix to uni2asc() to cope with zero length Unicode strings.
5361 These are present in some PKCS#12 files.
5364 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5365 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5366 when writing a 32767 byte record.
5367 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5369 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5370 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5372 (RSA objects have a reference count access to which is protected
5373 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5374 so they are meant to be shared between threads.)
5375 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5376 "Reddie, Steven" <Steven.Reddie@ca.com>]
5378 *) Fix a deadlock in CRYPTO_mem_leaks().
5381 *) Use better test patterns in bntest.
5384 *) rand_win.c fix for Borland C.
5387 *) BN_rshift bugfix for n == 0.
5390 *) Add a 'bctest' script that checks for some known 'bc' bugs
5391 so that 'make test' does not abort just because 'bc' is broken.
5394 *) Store verify_result within SSL_SESSION also for client side to
5395 avoid potential security hole. (Re-used sessions on the client side
5396 always resulted in verify_result==X509_V_OK, not using the original
5397 result of the server certificate verification.)
5400 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5401 SSL3_RT_APPLICATION_DATA, return 0.
5402 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5406 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5407 releases, have been re-implemented by renaming the previous
5408 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5409 and ssl3_read_internal, respectively, and adding 'peek' parameters
5410 to them. The new ssl[23]_{read,peek} functions are calls to
5411 ssl[23]_read_internal with the 'peek' flag set appropriately.
5412 A 'peek' parameter has also been added to ssl3_read_bytes, which
5413 does the actual work for ssl3_read_internal.
5416 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5417 the method-specific "init()" handler. Also clean up ex_data after
5418 calling the method-specific "finish()" handler. Previously, this was
5419 happening the other way round.
5422 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5423 The previous value, 12, was not always sufficient for BN_mod_exp().
5426 *) Make sure that shared libraries get the internal name engine with
5427 the full version number and not just 0. This should mark the
5428 shared libraries as not backward compatible. Of course, this should
5429 be changed again when we can guarantee backward binary compatibility.
5432 *) Fix typo in get_cert_by_subject() in by_dir.c
5433 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5435 *) Rework the system to generate shared libraries:
5437 - Make note of the expected extension for the shared libraries and
5438 if there is a need for symbolic links from for example libcrypto.so.0
5439 to libcrypto.so.0.9.7. There is extended info in Configure for
5442 - Make as few rebuilds of the shared libraries as possible.
5444 - Still avoid linking the OpenSSL programs with the shared libraries.
5446 - When installing, install the shared libraries separately from the
5450 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5452 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5453 and not in SSL_clear because the latter is also used by the
5454 accept/connect functions; previously, the settings made by
5455 SSL_set_read_ahead would be lost during the handshake.
5456 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5458 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5459 Previously, it would create entries for disableed algorithms no
5463 *) Added several new manual pages for SSL_* function.
5466 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5468 *) In ssl23_get_client_hello, generate an error message when faced
5469 with an initial SSL 3.0/TLS record that is too small to contain the
5470 first two bytes of the ClientHello message, i.e. client_version.
5471 (Note that this is a pathologic case that probably has never happened
5472 in real life.) The previous approach was to use the version number
5473 from the record header as a substitute; but our protocol choice
5474 should not depend on that one because it is not authenticated
5475 by the Finished messages.
5478 *) More robust randomness gathering functions for Windows.
5479 [Jeffrey Altman <jaltman@columbia.edu>]
5481 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5482 not set then we don't setup the error code for issuer check errors
5483 to avoid possibly overwriting other errors which the callback does
5484 handle. If an application does set the flag then we assume it knows
5485 what it is doing and can handle the new informational codes
5489 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5490 a general "ANY" type, as such it should be able to decode anything
5491 including tagged types. However it didn't check the class so it would
5492 wrongly interpret tagged types in the same way as their universal
5493 counterpart and unknown types were just rejected. Changed so that the
5494 tagged and unknown types are handled in the same way as a SEQUENCE:
5495 that is the encoding is stored intact. There is also a new type
5496 "V_ASN1_OTHER" which is used when the class is not universal, in this
5497 case we have no idea what the actual type is so we just lump them all
5501 *) On VMS, stdout may very well lead to a file that is written to
5502 in a record-oriented fashion. That means that every write() will
5503 write a separate record, which will be read separately by the
5504 programs trying to read from it. This can be very confusing.
5506 The solution is to put a BIO filter in the way that will buffer
5507 text until a linefeed is reached, and then write everything a
5508 line at a time, so every record written will be an actual line,
5509 not chunks of lines and not (usually doesn't happen, but I've
5510 seen it once) several lines in one record. BIO_f_linebuffer() is
5513 Currently, it's a VMS-only method, because that's where it has
5514 been tested well enough.
5517 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5518 it can return incorrect results.
5519 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5520 but it was in 0.9.6-beta[12].)
5523 *) Disable the check for content being present when verifying detached
5524 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5525 include zero length content when signing messages.
5528 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5529 BIO_ctrl (for BIO pairs).
5532 *) Add DSO method for VMS.
5535 *) Bug fix: Montgomery multiplication could produce results with the
5539 *) Add RPM specification openssl.spec and modify it to build three
5540 packages. The default package contains applications, application
5541 documentation and run-time libraries. The devel package contains
5542 include files, static libraries and function documentation. The
5543 doc package contains the contents of the doc directory. The original
5544 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5547 *) Add a large number of documentation files for many SSL routines.
5548 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5550 *) Add a configuration entry for Sony News 4.
5551 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5553 *) Don't set the two most significant bits to one when generating a
5554 random number < q in the DSA library.
5557 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5558 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5559 the underlying transport is blocking) if a handshake took place.
5560 (The default behaviour is needed by applications such as s_client
5561 and s_server that use select() to determine when to use SSL_read;
5562 but for applications that know in advance when to expect data, it
5563 just makes things more complicated.)
5566 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5570 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5571 work better on such systems.
5572 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5574 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5575 Update PKCS12_parse() so it copies the friendlyName and the
5576 keyid to the certificates aux info.
5579 *) Fix bug in PKCS7_verify() which caused an infinite loop
5580 if there was more than one signature.
5581 [Sven Uszpelkat <su@celocom.de>]
5583 *) Major change in util/mkdef.pl to include extra information
5584 about each symbol, as well as presentig variables as well
5585 as functions. This change means that there's n more need
5586 to rebuild the .num files when some algorithms are excluded.
5589 *) Allow the verify time to be set by an application,
5590 rather than always using the current time.
5593 *) Phase 2 verify code reorganisation. The certificate
5594 verify code now looks up an issuer certificate by a
5595 number of criteria: subject name, authority key id
5596 and key usage. It also verifies self signed certificates
5597 by the same criteria. The main comparison function is
5598 X509_check_issued() which performs these checks.
5600 Lot of changes were necessary in order to support this
5601 without completely rewriting the lookup code.
5603 Authority and subject key identifier are now cached.
5605 The LHASH 'certs' is X509_STORE has now been replaced
5606 by a STACK_OF(X509_OBJECT). This is mainly because an
5607 LHASH can't store or retrieve multiple objects with
5608 the same hash value.
5610 As a result various functions (which were all internal
5611 use only) have changed to handle the new X509_STORE
5612 structure. This will break anything that messed round
5613 with X509_STORE internally.
5615 The functions X509_STORE_add_cert() now checks for an
5616 exact match, rather than just subject name.
5618 The X509_STORE API doesn't directly support the retrieval
5619 of multiple certificates matching a given criteria, however
5620 this can be worked round by performing a lookup first
5621 (which will fill the cache with candidate certificates)
5622 and then examining the cache for matches. This is probably
5623 the best we can do without throwing out X509_LOOKUP
5624 entirely (maybe later...).
5626 The X509_VERIFY_CTX structure has been enhanced considerably.
5628 All certificate lookup operations now go via a get_issuer()
5629 callback. Although this currently uses an X509_STORE it
5630 can be replaced by custom lookups. This is a simple way
5631 to bypass the X509_STORE hackery necessary to make this
5632 work and makes it possible to use more efficient techniques
5633 in future. A very simple version which uses a simple
5634 STACK for its trusted certificate store is also provided
5635 using X509_STORE_CTX_trusted_stack().
5637 The verify_cb() and verify() callbacks now have equivalents
5638 in the X509_STORE_CTX structure.
5640 X509_STORE_CTX also has a 'flags' field which can be used
5641 to customise the verify behaviour.
5644 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5645 excludes S/MIME capabilities.
5648 *) When a certificate request is read in keep a copy of the
5649 original encoding of the signed data and use it when outputing
5650 again. Signatures then use the original encoding rather than
5651 a decoded, encoded version which may cause problems if the
5652 request is improperly encoded.
5655 *) For consistency with other BIO_puts implementations, call
5656 buffer_write(b, ...) directly in buffer_puts instead of calling
5659 In BIO_puts, increment b->num_write as in BIO_write.
5660 [Peter.Sylvester@EdelWeb.fr]
5662 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5663 BN_zero, we may not return a BIGNUM with an array consisting of
5667 *) Avoid calling abort() from within the library when problems are
5668 detected, except if preprocessor symbols have been defined
5669 (such as REF_CHECK, BN_DEBUG etc.).
5672 *) New openssl application 'rsautl'. This utility can be
5673 used for low level RSA operations. DER public key
5674 BIO/fp routines also added.
5677 *) New Configure entry and patches for compiling on QNX 4.
5678 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5680 *) A demo state-machine implementation was sponsored by
5681 Nuron (http://www.nuron.com/) and is now available in
5682 demos/state_machine.
5685 *) New options added to the 'dgst' utility for signature
5686 generation and verification.
5689 *) Unrecognized PKCS#7 content types are now handled via a
5690 catch all ASN1_TYPE structure. This allows unsupported
5691 types to be stored as a "blob" and an application can
5692 encode and decode it manually.
5695 *) Fix various signed/unsigned issues to make a_strex.c
5697 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5699 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5700 length if passed a buffer. ASN1_INTEGER_to_BN failed
5701 if passed a NULL BN and its argument was negative.
5702 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5704 *) Modification to PKCS#7 encoding routines to output definite
5705 length encoding. Since currently the whole structures are in
5706 memory there's not real point in using indefinite length
5707 constructed encoding. However if OpenSSL is compiled with
5708 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5711 *) Added BIO_vprintf() and BIO_vsnprintf().
5714 *) Added more prefixes to parse for in the the strings written
5715 through a logging bio, to cover all the levels that are available
5716 through syslog. The prefixes are now:
5718 PANIC, EMERG, EMR => LOG_EMERG
5719 ALERT, ALR => LOG_ALERT
5720 CRIT, CRI => LOG_CRIT
5721 ERROR, ERR => LOG_ERR
5722 WARNING, WARN, WAR => LOG_WARNING
5723 NOTICE, NOTE, NOT => LOG_NOTICE
5724 INFO, INF => LOG_INFO
5725 DEBUG, DBG => LOG_DEBUG
5727 and as before, if none of those prefixes are present at the
5728 beginning of the string, LOG_ERR is chosen.
5730 On Win32, the LOG_* levels are mapped according to this:
5732 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5733 LOG_WARNING => EVENTLOG_WARNING_TYPE
5734 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5738 *) Made it possible to reconfigure with just the configuration
5739 argument "reconf" or "reconfigure". The command line arguments
5740 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5741 and are retrieved from there when reconfiguring.
5745 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5747 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5750 *) The obj_dat.pl script was messing up the sorting of object
5751 names. The reason was that it compared the quoted version
5752 of strings as a result "OCSP" > "OCSP Signing" because
5753 " > SPACE. Changed script to store unquoted versions of
5754 names and add quotes on output. It was also omitting some
5755 names from the lookup table if they were given a default
5756 value (that is if SN is missing it is given the same
5757 value as LN and vice versa), these are now added on the
5758 grounds that if an object has a name we should be able to
5759 look it up. Finally added warning output when duplicate
5760 short or long names are found.
5763 *) Changes needed for Tandem NSK.
5764 [Scott Uroff <scott@xypro.com>]
5766 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5767 RSA_padding_check_SSLv23(), special padding was never detected
5768 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5769 version rollback attacks was not effective.
5771 In s23_clnt.c, don't use special rollback-attack detection padding
5772 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5773 client; similarly, in s23_srvr.c, don't do the rollback check if
5774 SSL 2.0 is the only protocol enabled in the server.
5777 *) Make it possible to get hexdumps of unprintable data with 'openssl
5778 asn1parse'. By implication, the functions ASN1_parse_dump() and
5779 BIO_dump_indent() are added.
5782 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5783 these print out strings and name structures based on various
5784 flags including RFC2253 support and proper handling of
5785 multibyte characters. Added options to the 'x509' utility
5786 to allow the various flags to be set.
5789 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5790 Also change the functions X509_cmp_current_time() and
5791 X509_gmtime_adj() work with an ASN1_TIME structure,
5792 this will enable certificates using GeneralizedTime in validity
5793 dates to be checked.
5796 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5797 negative public key encodings) on by default,
5798 NO_NEG_PUBKEY_BUG can be set to disable it.
5801 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5802 content octets. An i2c_ASN1_OBJECT is unnecessary because
5803 the encoding can be trivially obtained from the structure.
5806 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5807 not read locks (CRYPTO_r_[un]lock).
5810 *) A first attempt at creating official support for shared
5811 libraries through configuration. I've kept it so the
5812 default is static libraries only, and the OpenSSL programs
5813 are always statically linked for now, but there are
5814 preparations for dynamic linking in place.
5815 This has been tested on Linux and Tru64.
5818 *) Randomness polling function for Win9x, as described in:
5819 Peter Gutmann, Software Generation of Practically Strong
5823 *) Fix so PRNG is seeded in req if using an already existing
5827 *) New options to smime application. -inform and -outform
5828 allow alternative formats for the S/MIME message including
5829 PEM and DER. The -content option allows the content to be
5830 specified separately. This should allow things like Netscape
5831 form signing output easier to verify.
5834 *) Fix the ASN1 encoding of tags using the 'long form'.
5837 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5838 STRING types. These convert content octets to and from the
5839 underlying type. The actual tag and length octets are
5840 already assumed to have been read in and checked. These
5841 are needed because all other string types have virtually
5842 identical handling apart from the tag. By having versions
5843 of the ASN1 functions that just operate on content octets
5844 IMPLICIT tagging can be handled properly. It also allows
5845 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5846 and ASN1_INTEGER are identical apart from the tag.
5849 *) Change the handling of OID objects as follows:
5851 - New object identifiers are inserted in objects.txt, following
5852 the syntax given in objects.README.
5853 - objects.pl is used to process obj_mac.num and create a new
5855 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5858 This is currently kind of a hack, and the perl code in objects.pl
5859 isn't very elegant, but it works as I intended. The simplest way
5860 to check that it worked correctly is to look in obj_dat.h and
5861 check the array nid_objs and make sure the objects haven't moved
5862 around (this is important!). Additions are OK, as well as
5863 consistent name changes.
5866 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5869 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5870 The given file adds to whatever has already been seeded into the
5871 random pool through the RANDFILE configuration file option or
5872 environment variable, or the default random state file.
5875 *) mkstack.pl now sorts each macro group into lexical order.
5876 Previously the output order depended on the order the files
5877 appeared in the directory, resulting in needless rewriting
5881 *) Patches to make OpenSSL compile under Win32 again. Mostly
5882 work arounds for the VC++ problem that it treats func() as
5883 func(void). Also stripped out the parts of mkdef.pl that
5884 added extra typesafe functions: these no longer exist.
5887 *) Reorganisation of the stack code. The macros are now all
5888 collected in safestack.h . Each macro is defined in terms of
5889 a "stack macro" of the form SKM_<name>(type, a, b). The
5890 DEBUG_SAFESTACK is now handled in terms of function casts,
5891 this has the advantage of retaining type safety without the
5892 use of additional functions. If DEBUG_SAFESTACK is not defined
5893 then the non typesafe macros are used instead. Also modified the
5894 mkstack.pl script to handle the new form. Needs testing to see
5895 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5896 the default if no major problems. Similar behaviour for ASN1_SET_OF
5897 and PKCS12_STACK_OF.
5900 *) When some versions of IIS use the 'NET' form of private key the
5901 key derivation algorithm is different. Normally MD5(password) is
5902 used as a 128 bit RC4 key. In the modified case
5903 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5904 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5905 as the old Netscape_RSA functions except they have an additional
5906 'sgckey' parameter which uses the modified algorithm. Also added
5907 an -sgckey command line option to the rsa utility. Thanks to
5908 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5909 algorithm to openssl-dev.
5912 *) The evp_local.h macros were using 'c.##kname' which resulted in
5913 invalid expansion on some systems (SCO 5.0.5 for example).
5914 Corrected to 'c.kname'.
5915 [Phillip Porch <root@theporch.com>]
5917 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5918 a STACK of email addresses from a certificate or request, these look
5919 in the subject name and the subject alternative name extensions and
5920 omit any duplicate addresses.
5923 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5924 This makes DSA verification about 2 % faster.
5927 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5928 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5929 plus overhead for 1024 bit moduli).
5930 This makes exponentiations about 0.5 % faster for 1024 bit
5931 exponents (as measured by "openssl speed rsa2048").
5934 *) Rename memory handling macros to avoid conflicts with other
5936 Malloc => OPENSSL_malloc
5937 Malloc_locked => OPENSSL_malloc_locked
5938 Realloc => OPENSSL_realloc
5939 Free => OPENSSL_free
5942 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5943 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5946 *) CygWin32 support.
5947 [John Jarvie <jjarvie@newsguy.com>]
5949 *) The type-safe stack code has been rejigged. It is now only compiled
5950 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5951 by default all type-specific stack functions are "#define"d back to
5952 standard stack functions. This results in more streamlined output
5953 but retains the type-safety checking possibilities of the original
5957 *) The STACK code has been cleaned up, and certain type declarations
5958 that didn't make a lot of sense have been brought in line. This has
5959 also involved a cleanup of sorts in safestack.h to more correctly
5960 map type-safe stack functions onto their plain stack counterparts.
5961 This work has also resulted in a variety of "const"ifications of
5962 lots of the code, especially "_cmp" operations which should normally
5963 be prototyped with "const" parameters anyway.
5966 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5967 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5968 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5969 where all of 'md' is used each time the PRNG is used, but 'state'
5970 is used only indexed by a cyclic counter. As entropy may not be
5971 well distributed from the beginning, 'md' is important as a
5972 chaining variable. However, the output function chains only half
5973 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5974 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5975 in all of 'state' being rewritten, with the new values depending
5976 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5979 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5980 the handshake is continued after ssl_verify_cert_chain();
5981 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5982 can lead to 'unexplainable' connection aborts later.
5983 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5985 *) Major EVP API cipher revision.
5986 Add hooks for extra EVP features. This allows various cipher
5987 parameters to be set in the EVP interface. Support added for variable
5988 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5989 setting of RC2 and RC5 parameters.
5991 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5994 Remove lots of duplicated code from the EVP library. For example *every*
5995 cipher init() function handles the 'iv' in the same way according to the
5996 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5997 for CFB and OFB modes they zero ctx->num.
5999 New functionality allows removal of S/MIME code RC2 hack.
6001 Most of the routines have the same form and so can be declared in terms
6004 By shifting this to the top level EVP_CipherInit() it can be removed from
6005 all individual ciphers. If the cipher wants to handle IVs or keys
6006 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6009 Change lots of functions like EVP_EncryptUpdate() to now return a
6010 value: although software versions of the algorithms cannot fail
6011 any installed hardware versions can.
6014 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6015 this option is set, tolerate broken clients that send the negotiated
6016 protocol version number instead of the requested protocol version
6020 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6021 i.e. non-zero for export ciphersuites, zero otherwise.
6022 Previous versions had this flag inverted, inconsistent with
6023 rsa_tmp_cb (..._TMP_RSA_CB).
6024 [Bodo Moeller; problem reported by Amit Chopra]
6026 *) Add missing DSA library text string. Work around for some IIS
6027 key files with invalid SEQUENCE encoding.
6030 *) Add a document (doc/standards.txt) that list all kinds of standards
6031 and so on that are implemented in OpenSSL.
6034 *) Enhance c_rehash script. Old version would mishandle certificates
6035 with the same subject name hash and wouldn't handle CRLs at all.
6036 Added -fingerprint option to crl utility, to support new c_rehash
6040 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6043 *) Fix for SSL server purpose checking. Server checking was
6044 rejecting certificates which had extended key usage present
6045 but no ssl client purpose.
6046 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6048 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6049 is a little unclear about how a blank password is handled.
6050 Since the password in encoded as a BMPString with terminating
6051 double NULL a zero length password would end up as just the
6052 double NULL. However no password at all is different and is
6053 handled differently in the PKCS#12 key generation code. NS
6054 treats a blank password as zero length. MSIE treats it as no
6055 password on export: but it will try both on import. We now do
6056 the same: PKCS12_parse() tries zero length and no password if
6057 the password is set to "" or NULL (NULL is now a valid password:
6058 it wasn't before) as does the pkcs12 application.
6061 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6062 perror when PEM_read_bio_X509_REQ fails, the error message must
6063 be obtained from the error queue.
6066 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6067 it in ERR_remove_state if appropriate, and change ERR_get_state
6068 accordingly to avoid race conditions (this is necessary because
6069 thread_hash is no longer constant once set).
6072 *) Bugfix for linux-elf makefile.one.
6075 *) RSA_get_default_method() will now cause a default
6076 RSA_METHOD to be chosen if one doesn't exist already.
6077 Previously this was only set during a call to RSA_new()
6078 or RSA_new_method(NULL) meaning it was possible for
6079 RSA_get_default_method() to return NULL.
6082 *) Added native name translation to the existing DSO code
6083 that will convert (if the flag to do so is set) filenames
6084 that are sufficiently small and have no path information
6085 into a canonical native form. Eg. "blah" converted to
6086 "libblah.so" or "blah.dll" etc.
6089 *) New function ERR_error_string_n(e, buf, len) which is like
6090 ERR_error_string(e, buf), but writes at most 'len' bytes
6091 including the 0 terminator. For ERR_error_string_n, 'buf'
6093 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6095 *) CONF library reworked to become more general. A new CONF
6096 configuration file reader "class" is implemented as well as a
6097 new functions (NCONF_*, for "New CONF") to handle it. The now
6098 old CONF_* functions are still there, but are reimplemented to
6099 work in terms of the new functions. Also, a set of functions
6100 to handle the internal storage of the configuration data is
6101 provided to make it easier to write new configuration file
6102 reader "classes" (I can definitely see something reading a
6103 configuration file in XML format, for example), called _CONF_*,
6104 or "the configuration storage API"...
6106 The new configuration file reading functions are:
6108 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6109 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6111 NCONF_default, NCONF_WIN32
6113 NCONF_dump_fp, NCONF_dump_bio
6115 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6116 NCONF_new creates a new CONF object. This works in the same way
6117 as other interfaces in OpenSSL, like the BIO interface.
6118 NCONF_dump_* dump the internal storage of the configuration file,
6119 which is useful for debugging. All other functions take the same
6120 arguments as the old CONF_* functions wth the exception of the
6121 first that must be a `CONF *' instead of a `LHASH *'.
6123 To make it easer to use the new classes with the old CONF_* functions,
6124 the function CONF_set_default_method is provided.
6127 *) Add '-tls1' option to 'openssl ciphers', which was already
6128 mentioned in the documentation but had not been implemented.
6129 (This option is not yet really useful because even the additional
6130 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6133 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6134 OpenSSL-based applications) load shared libraries and bind to
6135 them in a portable way.
6136 [Geoff Thorpe, with contributions from Richard Levitte]
6138 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6140 *) Make sure _lrotl and _lrotr are only used with MSVC.
6142 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6143 (the default implementation of RAND_status).
6145 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6146 to '-clrext' (= clear extensions), as intended and documented.
6147 [Bodo Moeller; inconsistency pointed out by Michael Attili
6150 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6151 was larger than the MD block size.
6152 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6154 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6155 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6156 using the passed key: if the passed key was a private key the result
6157 of X509_print(), for example, would be to print out all the private key
6161 *) des_quad_cksum() byte order bug fix.
6162 [Ulf Möller, using the problem description in krb4-0.9.7, where
6163 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6165 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6167 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6169 *) For easily testing in shell scripts whether some command
6170 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6171 returns with exit code 0 iff no command of the given name is available.
6172 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6173 the output goes to stdout and nothing is printed to stderr.
6174 Additional arguments are always ignored.
6176 Since for each cipher there is a command of the same name,
6177 the 'no-cipher' compilation switches can be tested this way.
6179 ('openssl no-XXX' is not able to detect pseudo-commands such
6180 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6183 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6186 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6187 is set; it will be thrown away anyway because each handshake creates
6189 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6190 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6191 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6192 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6195 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6196 'Q' and 'R' lose their special meanings (quit/renegotiate).
6197 This is part of what -quiet does; unlike -quiet, -ign_eof
6198 does not suppress any output.
6201 *) Add compatibility options to the purpose and trust code. The
6202 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6203 accepts a certificate or CA, this was the previous behaviour,
6204 with all the associated security issues.
6206 X509_TRUST_COMPAT is the old trust behaviour: only and
6207 automatically trust self signed roots in certificate store. A
6208 new trust setting X509_TRUST_DEFAULT is used to specify that
6209 a purpose has no associated trust setting and it should instead
6210 use the value in the default purpose.
6213 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6214 and fix a memory leak.
6217 *) In util/mkerr.pl (which implements 'make errors'), preserve
6218 reason strings from the previous version of the .c file, as
6219 the default to have only downcase letters (and digits) in
6220 automatically generated reasons codes is not always appropriate.
6223 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6224 using strerror. Previously, ERR_reason_error_string() returned
6225 library names as reason strings for SYSerr; but SYSerr is a special
6226 case where small numbers are errno values, not library numbers.
6229 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6230 converts DSA parameters into DH parameters. (When creating parameters,
6231 DSA_generate_parameters is used.)
6234 *) Include 'length' (recommended exponent length) in C code generated
6235 by 'openssl dhparam -C'.
6238 *) The second argument to set_label in perlasm was already being used
6239 so couldn't be used as a "file scope" flag. Moved to third argument
6243 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6244 instead of RAND_bytes for encryption IVs and salts.
6247 *) Include RAND_status() into RAND_METHOD instead of implementing
6248 it only for md_rand.c Otherwise replacing the PRNG by calling
6249 RAND_set_rand_method would be impossible.
6252 *) Don't let DSA_generate_key() enter an infinite loop if the random
6253 number generation fails.
6256 *) New 'rand' application for creating pseudo-random output.
6259 *) Added configuration support for Linux/IA64
6260 [Rolf Haberrecker <rolf@suse.de>]
6262 *) Assembler module support for Mingw32.
6265 *) Shared library support for HPUX (in shlib/).
6266 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6268 *) Shared library support for Solaris gcc.
6269 [Lutz Behnke <behnke@trustcenter.de>]
6271 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6273 *) PKCS7_encrypt() was adding text MIME headers twice because they
6274 were added manually and by SMIME_crlf_copy().
6277 *) In bntest.c don't call BN_rand with zero bits argument.
6278 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6280 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6281 case was implemented. This caused BN_div_recp() to fail occasionally.
6284 *) Add an optional second argument to the set_label() in the perl
6285 assembly language builder. If this argument exists and is set
6286 to 1 it signals that the assembler should use a symbol whose
6287 scope is the entire file, not just the current function. This
6288 is needed with MASM which uses the format label:: for this scope.
6289 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6291 *) Change the ASN1 types so they are typedefs by default. Before
6292 almost all types were #define'd to ASN1_STRING which was causing
6293 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6297 *) Change names of new functions to the new get1/get0 naming
6298 convention: After 'get1', the caller owns a reference count
6299 and has to call ..._free; 'get0' returns a pointer to some
6300 data structure without incrementing reference counters.
6301 (Some of the existing 'get' functions increment a reference
6302 counter, some don't.)
6303 Similarly, 'set1' and 'add1' functions increase reference
6304 counters or duplicate objects.
6307 *) Allow for the possibility of temp RSA key generation failure:
6308 the code used to assume it always worked and crashed on failure.
6311 *) Fix potential buffer overrun problem in BIO_printf().
6312 [Ulf Möller, using public domain code by Patrick Powell; problem
6313 pointed out by David Sacerdote <das33@cornell.edu>]
6315 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6316 RAND_egd() and RAND_status(). In the command line application,
6317 the EGD socket can be specified like a seed file using RANDFILE
6321 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6322 Some CAs (e.g. Verisign) distribute certificates in this form.
6325 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6326 list to exclude them. This means that no special compilation option
6327 is needed to use anonymous DH: it just needs to be included in the
6331 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6332 EVP_MD_type. The old functionality is available in a new macro called
6333 EVP_MD_md(). Change code that uses it and update docs.
6336 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6337 where the 'void *' argument is replaced by a function pointer argument.
6338 Previously 'void *' was abused to point to functions, which works on
6339 many platforms, but is not correct. As these functions are usually
6340 called by macros defined in OpenSSL header files, most source code
6341 should work without changes.
6344 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6345 sections with information on -D... compiler switches used for
6346 compiling the library so that applications can see them. To enable
6347 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6348 must be defined. E.g.,
6349 #define OPENSSL_ALGORITHM_DEFINES
6350 #include <openssl/opensslconf.h>
6351 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6352 [Richard Levitte, Ulf and Bodo Möller]
6354 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6358 *) Change the 'other' type in certificate aux info to a STACK_OF
6359 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6360 the required ASN1 format: arbitrary types determined by an OID.
6363 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6364 argument to 'req'. This is not because the function is newer or
6365 better than others it just uses the work 'NEW' in the certificate
6366 request header lines. Some software needs this.
6369 *) Reorganise password command line arguments: now passwords can be
6370 obtained from various sources. Delete the PEM_cb function and make
6371 it the default behaviour: i.e. if the callback is NULL and the
6372 usrdata argument is not NULL interpret it as a null terminated pass
6373 phrase. If usrdata and the callback are NULL then the pass phrase
6374 is prompted for as usual.
6377 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6378 the support is automatically enabled. The resulting binaries will
6379 autodetect the card and use it if present.
6380 [Ben Laurie and Compaq Inc.]
6382 *) Work around for Netscape hang bug. This sends certificate request
6383 and server done in one record. Since this is perfectly legal in the
6384 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6385 the bugs/SSLv3 entry for more info.
6388 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6391 *) Add -rand argument to smime and pkcs12 applications and read/write
6395 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6398 *) Add command line password options to the remaining applications.
6401 *) Bug fix for BN_div_recp() for numerators with an even number of
6405 *) More tests in bntest.c, and changed test_bn output.
6408 *) ./config recognizes MacOS X now.
6411 *) Bug fix for BN_div() when the first words of num and divsor are
6412 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6415 *) Add support for various broken PKCS#8 formats, and command line
6416 options to produce them.
6419 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6420 get temporary BIGNUMs from a BN_CTX.
6423 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6427 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6428 include a #define from the old name to the new. The original intent
6429 was that statically linked binaries could for example just call
6430 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6431 link with digests. This never worked becayse SSLeay_add_all_digests()
6432 and SSLeay_add_all_ciphers() were in the same source file so calling
6433 one would link with the other. They are now in separate source files.
6436 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6439 *) Use a less unusual form of the Miller-Rabin primality test (it used
6440 a binary algorithm for exponentiation integrated into the Miller-Rabin
6441 loop, our standard modexp algorithms are faster).
6444 *) Support for the EBCDIC character set completed.
6445 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6447 *) Source code cleanups: use const where appropriate, eliminate casts,
6448 use void * instead of char * in lhash.
6451 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6452 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6453 this the server could overwrite ephemeral keys that the client
6457 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6458 using 50 iterations of the Rabin-Miller test.
6460 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6461 iterations of the Rabin-Miller test as required by the appendix
6462 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6463 As BN_is_prime_fasttest includes trial division, DSA parameter
6464 generation becomes much faster.
6466 This implies a change for the callback functions in DSA_is_prime
6467 and DSA_generate_parameters: The callback function is called once
6468 for each positive witness in the Rabin-Miller test, not just
6469 occasionally in the inner loop; and the parameters to the
6470 callback function now provide an iteration count for the outer
6471 loop rather than for the current invocation of the inner loop.
6472 DSA_generate_parameters additionally can call the callback
6473 function with an 'iteration count' of -1, meaning that a
6474 candidate has passed the trial division test (when q is generated
6475 from an application-provided seed, trial division is skipped).
6478 *) New function BN_is_prime_fasttest that optionally does trial
6479 division before starting the Rabin-Miller test and has
6480 an additional BN_CTX * argument (whereas BN_is_prime always
6481 has to allocate at least one BN_CTX).
6482 'callback(1, -1, cb_arg)' is called when a number has passed the
6483 trial division stage.
6486 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6490 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6493 *) New function BN_pseudo_rand().
6496 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6497 bignum version of BN_from_montgomery() with the working code from
6498 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6502 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6503 made it impossible to use the same SSL_SESSION data structure in
6504 SSL2 clients in multiple threads.
6507 *) The return value of RAND_load_file() no longer counts bytes obtained
6508 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6509 to seed the PRNG (previously an explicit byte count was required).
6510 [Ulf Möller, Bodo Möller]
6512 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6513 used (char *) instead of (void *) and had casts all over the place.
6516 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6519 *) Retain source code compatibility for BN_prime_checks macro:
6520 BN_is_prime(..., BN_prime_checks, ...) now uses
6521 BN_prime_checks_for_size to determine the appropriate number of
6522 Rabin-Miller iterations.
6525 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6526 DH_CHECK_P_NOT_SAFE_PRIME.
6527 (Check if this is true? OpenPGP calls them "strong".)
6530 *) Merge the functionality of "dh" and "gendh" programs into a new program
6531 "dhparam". The old programs are retained for now but will handle DH keys
6532 (instead of parameters) in future.
6535 *) Make the ciphers, s_server and s_client programs check the return values
6536 when a new cipher list is set.
6539 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6540 ciphers. Before when the 56bit ciphers were enabled the sorting was
6543 The syntax for the cipher sorting has been extended to support sorting by
6544 cipher-strength (using the strength_bits hard coded in the tables).
6545 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6547 Fix a bug in the cipher-command parser: when supplying a cipher command
6548 string with an "undefined" symbol (neither command nor alphanumeric
6549 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6550 an error is flagged.
6552 Due to the strength-sorting extension, the code of the
6553 ssl_create_cipher_list() function was completely rearranged. I hope that
6554 the readability was also increased :-)
6555 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6557 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6558 for the first serial number and places 2 in the serial number file. This
6559 avoids problems when the root CA is created with serial number zero and
6560 the first user certificate has the same issuer name and serial number
6564 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6565 the new code. Add documentation for this stuff.
6568 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6569 X509_*() to X509at_*() on the grounds that they don't handle X509
6570 structures and behave in an analagous way to the X509v3 functions:
6571 they shouldn't be called directly but wrapper functions should be used
6574 So we also now have some wrapper functions that call the X509at functions
6575 when passed certificate requests. (TO DO: similar things can be done with
6576 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6577 things. Some of these need some d2i or i2d and print functionality
6578 because they handle more complex structures.)
6581 *) Add missing #ifndefs that caused missing symbols when building libssl
6582 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6583 NO_RSA in ssl/s2*.c.
6584 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6586 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6587 has a return value which indicates the quality of the random data
6588 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6589 error queue. New function RAND_pseudo_bytes() generates output that is
6590 guaranteed to be unique but not unpredictable. RAND_add is like
6591 RAND_seed, but takes an extra argument for an entropy estimate
6592 (RAND_seed always assumes full entropy).
6595 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6596 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6597 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6598 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6599 false-positive rate of at most 2^-80 for random input.
6602 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6605 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6606 in the 0.9.5 release), this returns the chain
6607 from an X509_CTX structure with a dup of the stack and all
6608 the X509 reference counts upped: so the stack will exist
6609 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6612 Also make SSL_SESSION_print() print out the verify return
6616 *) Add manpage for the pkcs12 command. Also change the default
6617 behaviour so MAC iteration counts are used unless the new
6618 -nomaciter option is used. This improves file security and
6619 only older versions of MSIE (4.0 for example) need it.
6622 *) Honor the no-xxx Configure options when creating .DEF files.
6625 *) Add PKCS#10 attributes to field table: challengePassword,
6626 unstructuredName and unstructuredAddress. These are taken from
6627 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6628 international characters are used.
6630 More changes to X509_ATTRIBUTE code: allow the setting of types
6631 based on strings. Remove the 'loc' parameter when adding
6632 attributes because these will be a SET OF encoding which is sorted
6636 *) Initial changes to the 'req' utility to allow request generation
6637 automation. This will allow an application to just generate a template
6638 file containing all the field values and have req construct the
6641 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6642 used all over the place including certificate requests and PKCS#7
6643 structures. They are currently handled manually where necessary with
6644 some primitive wrappers for PKCS#7. The new functions behave in a
6645 manner analogous to the X509 extension functions: they allow
6646 attributes to be looked up by NID and added.
6648 Later something similar to the X509V3 code would be desirable to
6649 automatically handle the encoding, decoding and printing of the
6650 more complex types. The string types like challengePassword can
6651 be handled by the string table functions.
6653 Also modified the multi byte string table handling. Now there is
6654 a 'global mask' which masks out certain types. The table itself
6655 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6656 is useful when for example there is only one permissible type
6657 (as in countryName) and using the mask might result in no valid
6661 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6662 SSL_get_peer_finished to allow applications to obtain the latest
6663 Finished messages sent to the peer or expected from the peer,
6664 respectively. (SSL_get_peer_finished is usually the Finished message
6665 actually received from the peer, otherwise the protocol will be aborted.)
6667 As the Finished message are message digests of the complete handshake
6668 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6669 be used for external authentication procedures when the authentication
6670 provided by SSL/TLS is not desired or is not enough.
6673 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6674 the host supports BWX extension and if Compaq C is present on the
6675 $PATH. Just exploiting of the BWX extension results in 20-30%
6676 performance kick for some algorithms, e.g. DES and RC4 to mention
6677 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6681 *) Add support for MS "fast SGC". This is arguably a violation of the
6682 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6683 weak crypto and after checking the certificate is SGC a second one
6684 with strong crypto. MS SGC stops the first handshake after receiving
6685 the server certificate message and sends a second client hello. Since
6686 a server will typically do all the time consuming operations before
6687 expecting any further messages from the client (server key exchange
6688 is the most expensive) there is little difference between the two.
6690 To get OpenSSL to support MS SGC we have to permit a second client
6691 hello message after we have sent server done. In addition we have to
6692 reset the MAC if we do get this second client hello.
6695 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6696 if a DER encoded private key is RSA or DSA traditional format. Changed
6697 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6698 format DER encoded private key. Newer code should use PKCS#8 format which
6699 has the key type encoded in the ASN1 structure. Added DER private key
6700 support to pkcs8 application.
6703 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6704 ciphersuites has been selected (as required by the SSL 3/TLS 1
6705 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6706 is set, we interpret this as a request to violate the specification
6707 (the worst that can happen is a handshake failure, and 'correct'
6708 behaviour would result in a handshake failure anyway).
6711 *) In SSL_CTX_add_session, take into account that there might be multiple
6712 SSL_SESSION structures with the same session ID (e.g. when two threads
6713 concurrently obtain them from an external cache).
6714 The internal cache can handle only one SSL_SESSION with a given ID,
6715 so if there's a conflict, we now throw out the old one to achieve
6719 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6720 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6721 some routines that use cipher OIDs: some ciphers do not have OIDs
6722 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6726 *) Simplify the trust setting structure and code. Now we just have
6727 two sequences of OIDs for trusted and rejected settings. These will
6728 typically have values the same as the extended key usage extension
6729 and any application specific purposes.
6731 The trust checking code now has a default behaviour: it will just
6732 check for an object with the same NID as the passed id. Functions can
6733 be provided to override either the default behaviour or the behaviour
6734 for a given id. SSL client, server and email already have functions
6735 in place for compatibility: they check the NID and also return "trusted"
6736 if the certificate is self signed.
6739 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6740 traditional format into an EVP_PKEY structure.
6743 *) Add a password callback function PEM_cb() which either prompts for
6744 a password if usr_data is NULL or otherwise assumes it is a null
6745 terminated password. Allow passwords to be passed on command line
6746 environment or config files in a few more utilities.
6749 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6750 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6751 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6752 Update documentation.
6755 *) Support for ASN1 "NULL" type. This could be handled before by using
6756 ASN1_TYPE but there wasn't any function that would try to read a NULL
6757 and produce an error if it couldn't. For compatibility we also have
6758 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6759 don't allocate anything because they don't need to.
6762 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6764 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6766 *) Rebuild of the memory allocation routines used by OpenSSL code and
6767 possibly others as well. The purpose is to make an interface that
6768 provide hooks so anyone can build a separate set of allocation and
6769 deallocation routines to be used by OpenSSL, for example memory
6770 pool implementations, or something else, which was previously hard
6771 since Malloc(), Realloc() and Free() were defined as macros having
6772 the values malloc, realloc and free, respectively (except for Win32
6773 compilations). The same is provided for memory debugging code.
6774 OpenSSL already comes with functionality to find memory leaks, but
6775 this gives people a chance to debug other memory problems.
6777 With these changes, a new set of functions and macros have appeared:
6779 CRYPTO_set_mem_debug_functions() [F]
6780 CRYPTO_get_mem_debug_functions() [F]
6781 CRYPTO_dbg_set_options() [F]
6782 CRYPTO_dbg_get_options() [F]
6783 CRYPTO_malloc_debug_init() [M]
6785 The memory debug functions are NULL by default, unless the library
6786 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6787 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6788 gives the standard debugging functions that come with OpenSSL) or
6789 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6790 provided by the library user) must be used. When the standard
6791 debugging functions are used, CRYPTO_dbg_set_options can be used to
6792 request additional information:
6793 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6794 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6796 Also, things like CRYPTO_set_mem_functions will always give the
6797 expected result (the new set of functions is used for allocation
6798 and deallocation) at all times, regardless of platform and compiler
6801 To finish it up, some functions that were never use in any other
6802 way than through macros have a new API and new semantic:
6805 CRYPTO_dbg_realloc()
6808 All macros of value have retained their old syntax.
6809 [Richard Levitte and Bodo Moeller]
6811 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6812 ordering of SMIMECapabilities wasn't in "strength order" and there
6813 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6817 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6818 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6819 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6821 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6822 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6823 functionality to handle multipart/signed properly) and a utility
6824 called 'smime' to call all this stuff. This is based on code I
6825 originally wrote for Celo who have kindly allowed it to be
6826 included in OpenSSL.
6829 *) Add variants des_set_key_checked and des_set_key_unchecked of
6830 des_set_key (aka des_key_sched). Global variable des_check_key
6831 decides which of these is called by des_set_key; this way
6832 des_check_key behaves as it always did, but applications and
6833 the library itself, which was buggy for des_check_key == 1,
6834 have a cleaner way to pick the version they need.
6837 *) New function PKCS12_newpass() which changes the password of a
6841 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6842 dynamic mix. In both cases the ids can be used as an index into the
6843 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6844 functions so they accept a list of the field values and the
6845 application doesn't need to directly manipulate the X509_TRUST
6849 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6853 *) Modify the way the V3 extension code looks up extensions. This now
6854 works in a similar way to the object code: we have some "standard"
6855 extensions in a static table which is searched with OBJ_bsearch()
6856 and the application can add dynamic ones if needed. The file
6857 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6858 updated whenever a new extension is added to the core code and kept
6859 in ext_nid order. There is a simple program 'tabtest.c' which checks
6860 this. New extensions are not added too often so this file can readily
6861 be maintained manually.
6863 There are two big advantages in doing things this way. The extensions
6864 can be looked up immediately and no longer need to be "added" using
6865 X509V3_add_standard_extensions(): this function now does nothing.
6866 [Side note: I get *lots* of email saying the extension code doesn't
6867 work because people forget to call this function]
6868 Also no dynamic allocation is done unless new extensions are added:
6869 so if we don't add custom extensions there is no need to call
6870 X509V3_EXT_cleanup().
6873 *) Modify enc utility's salting as follows: make salting the default. Add a
6874 magic header, so unsalted files fail gracefully instead of just decrypting
6875 to garbage. This is because not salting is a big security hole, so people
6876 should be discouraged from doing it.
6879 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6880 digest to be passed on the command line but it only used this
6881 parameter when signing a certificate. Modified so all relevant
6882 operations are affected by the digest parameter including the
6883 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6884 DSA key was used because it didn't fix the digest.
6887 *) Initial certificate chain verify code. Currently tests the untrusted
6888 certificates for consistency with the verify purpose (which is set
6889 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6891 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6892 this is because it will reject chains with invalid extensions whereas
6893 every previous version of OpenSSL and SSLeay made no checks at all.
6895 Trust code: checks the root CA for the relevant trust settings. Trust
6896 settings have an initial value consistent with the verify purpose: e.g.
6897 if the verify purpose is for SSL client use it expects the CA to be
6898 trusted for SSL client use. However the default value can be changed to
6899 permit custom trust settings: one example of this would be to only trust
6900 certificates from a specific "secure" set of CAs.
6902 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6903 which should be used for version portability: especially since the
6904 verify structure is likely to change more often now.
6906 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6907 to set them. If not set then assume SSL clients will verify SSL servers
6910 Two new options to the verify program: -untrusted allows a set of
6911 untrusted certificates to be passed in and -purpose which sets the
6912 intended purpose of the certificate. If a purpose is set then the
6913 new chain verify code is used to check extension consistency.
6916 *) Support for the authority information access extension.
6919 *) Modify RSA and DSA PEM read routines to transparently handle
6920 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6921 public keys in a format compatible with certificate
6922 SubjectPublicKeyInfo structures. Unfortunately there were already
6923 functions called *_PublicKey_* which used various odd formats so
6924 these are retained for compatibility: however the DSA variants were
6925 never in a public release so they have been deleted. Changed dsa/rsa
6926 utilities to handle the new format: note no releases ever handled public
6927 keys so we should be OK.
6929 The primary motivation for this change is to avoid the same fiasco
6930 that dogs private keys: there are several incompatible private key
6931 formats some of which are standard and some OpenSSL specific and
6932 require various evil hacks to allow partial transparent handling and
6933 even then it doesn't work with DER formats. Given the option anything
6934 other than PKCS#8 should be dumped: but the other formats have to
6935 stay in the name of compatibility.
6937 With public keys and the benefit of hindsight one standard format
6938 is used which works with EVP_PKEY, RSA or DSA structures: though
6939 it clearly returns an error if you try to read the wrong kind of key.
6941 Added a -pubkey option to the 'x509' utility to output the public key.
6942 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6943 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6944 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6945 that do the same as the EVP_PKEY_assign_*() except they up the
6946 reference count of the added key (they don't "swallow" the
6950 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6951 CRLs would fail if the file contained no certificates or no CRLs:
6952 added a new function to read in both types and return the number
6953 read: this means that if none are read it will be an error. The
6954 DER versions of the certificate and CRL reader would always fail
6955 because it isn't possible to mix certificates and CRLs in DER format
6956 without choking one or the other routine. Changed this to just read
6957 a certificate: this is the best we can do. Also modified the code
6958 in apps/verify.c to take notice of return codes: it was previously
6959 attempting to read in certificates from NULL pointers and ignoring
6960 any errors: this is one reason why the cert and CRL reader seemed
6961 to work. It doesn't check return codes from the default certificate
6962 routines: these may well fail if the certificates aren't installed.
6965 *) Code to support otherName option in GeneralName.
6968 *) First update to verify code. Change the verify utility
6969 so it warns if it is passed a self signed certificate:
6970 for consistency with the normal behaviour. X509_verify
6971 has been modified to it will now verify a self signed
6972 certificate if *exactly* the same certificate appears
6973 in the store: it was previously impossible to trust a
6974 single self signed certificate. This means that:
6975 openssl verify ss.pem
6976 now gives a warning about a self signed certificate but
6977 openssl verify -CAfile ss.pem ss.pem
6981 *) For servers, store verify_result in SSL_SESSION data structure
6982 (and add it to external session representation).
6983 This is needed when client certificate verifications fails,
6984 but an application-provided verification callback (set by
6985 SSL_CTX_set_cert_verify_callback) allows accepting the session
6986 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6987 but returns 1): When the session is reused, we have to set
6988 ssl->verify_result to the appropriate error code to avoid
6990 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6992 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6993 case in PKCS7_dataInit() where the signed PKCS7 structure
6994 didn't contain any existing data because it was being created.
6995 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6997 *) Add a salt to the key derivation routines in enc.c. This
6998 forms the first 8 bytes of the encrypted file. Also add a
6999 -S option to allow a salt to be input on the command line.
7002 *) New function X509_cmp(). Oddly enough there wasn't a function
7003 to compare two certificates. We do this by working out the SHA1
7004 hash and comparing that. X509_cmp() will be needed by the trust
7008 *) SSL_get1_session() is like SSL_get_session(), but increments
7009 the reference count in the SSL_SESSION returned.
7010 [Geoff Thorpe <geoff@eu.c2.net>]
7012 *) Fix for 'req': it was adding a null to request attributes.
7013 Also change the X509_LOOKUP and X509_INFO code to handle
7014 certificate auxiliary information.
7017 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7021 *) Add the possibility to add extra information to the memory leak
7022 detecting output, to form tracebacks, showing from where each
7023 allocation was originated: CRYPTO_push_info("constant string") adds
7024 the string plus current file name and line number to a per-thread
7025 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7026 is like calling CYRPTO_pop_info() until the stack is empty.
7027 Also updated memory leak detection code to be multi-thread-safe.
7030 *) Add options -text and -noout to pkcs7 utility and delete the
7031 encryption options which never did anything. Update docs.
7034 *) Add options to some of the utilities to allow the pass phrase
7035 to be included on either the command line (not recommended on
7036 OSes like Unix) or read from the environment. Update the
7037 manpages and fix a few bugs.
7040 *) Add a few manpages for some of the openssl commands.
7043 *) Fix the -revoke option in ca. It was freeing up memory twice,
7044 leaking and not finding already revoked certificates.
7047 *) Extensive changes to support certificate auxiliary information.
7048 This involves the use of X509_CERT_AUX structure and X509_AUX
7049 functions. An X509_AUX function such as PEM_read_X509_AUX()
7050 can still read in a certificate file in the usual way but it
7051 will also read in any additional "auxiliary information". By
7052 doing things this way a fair degree of compatibility can be
7053 retained: existing certificates can have this information added
7054 using the new 'x509' options.
7056 Current auxiliary information includes an "alias" and some trust
7057 settings. The trust settings will ultimately be used in enhanced
7058 certificate chain verification routines: currently a certificate
7059 can only be trusted if it is self signed and then it is trusted
7063 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7064 The problem was that one of the replacement routines had not been working
7065 since SSLeay releases. For now the offending routine has been replaced
7066 with non-optimised assembler. Even so, this now gives around 95%
7067 performance improvement for 1024 bit RSA signs.
7070 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7071 handling. Most clients have the effective key size in bits equal to
7072 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7073 A few however don't do this and instead use the size of the decrypted key
7074 to determine the RC2 key length and the AlgorithmIdentifier to determine
7075 the effective key length. In this case the effective key length can still
7076 be 40 bits but the key length can be 168 bits for example. This is fixed
7077 by manually forcing an RC2 key into the EVP_PKEY structure because the
7078 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7079 the key length and effective key length are equal.
7082 *) Add a bunch of functions that should simplify the creation of
7083 X509_NAME structures. Now you should be able to do:
7084 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7085 and have it automatically work out the correct field type and fill in
7086 the structures. The more adventurous can try:
7087 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7088 and it will (hopefully) work out the correct multibyte encoding.
7091 *) Change the 'req' utility to use the new field handling and multibyte
7092 copy routines. Before the DN field creation was handled in an ad hoc
7093 way in req, ca, and x509 which was rather broken and didn't support
7094 BMPStrings or UTF8Strings. Since some software doesn't implement
7095 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7096 using the dirstring_type option. See the new comment in the default
7097 openssl.cnf for more info.
7100 *) Make crypto/rand/md_rand.c more robust:
7101 - Assure unique random numbers after fork().
7102 - Make sure that concurrent threads access the global counter and
7103 md serializably so that we never lose entropy in them
7104 or use exactly the same state in multiple threads.
7105 Access to the large state is not always serializable because
7106 the additional locking could be a performance killer, and
7107 md should be large enough anyway.
7110 *) New file apps/app_rand.c with commonly needed functionality
7111 for handling the random seed file.
7113 Use the random seed file in some applications that previously did not:
7115 dsaparam -genkey (which also ignored its '-rand' option),
7118 x509 (when signing).
7119 Except on systems with /dev/urandom, it is crucial to have a random
7120 seed file at least for key creation, DSA signing, and for DH exchanges;
7121 for RSA signatures we could do without one.
7123 gendh and gendsa (unlike genrsa) used to read only the first byte
7124 of each file listed in the '-rand' option. The function as previously
7125 found in genrsa is now in app_rand.c and is used by all programs
7126 that support '-rand'.
7129 *) In RAND_write_file, use mode 0600 for creating files;
7130 don't just chmod when it may be too late.
7133 *) Report an error from X509_STORE_load_locations
7134 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7137 *) New function ASN1_mbstring_copy() this copies a string in either
7138 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7139 into an ASN1_STRING type. A mask of permissible types is passed
7140 and it chooses the "minimal" type to use or an error if not type
7144 *) Add function equivalents to the various macros in asn1.h. The old
7145 macros are retained with an M_ prefix. Code inside the library can
7146 use the M_ macros. External code (including the openssl utility)
7147 should *NOT* in order to be "shared library friendly".
7150 *) Add various functions that can check a certificate's extensions
7151 to see if it usable for various purposes such as SSL client,
7152 server or S/MIME and CAs of these types. This is currently
7153 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7154 verification. Also added a -purpose flag to x509 utility to
7155 print out all the purposes.
7158 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7162 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7163 for, obtain and decode and extension and obtain its critical flag.
7164 This allows all the necessary extension code to be handled in a
7165 single function call.
7168 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7169 platforms. See crypto/rc4/rc4_enc.c for further details.
7172 *) New -noout option to asn1parse. This causes no output to be produced
7173 its main use is when combined with -strparse and -out to extract data
7174 from a file (which may not be in ASN.1 format).
7177 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7178 when producing the local key id.
7179 [Richard Levitte <levitte@stacken.kth.se>]
7181 *) New option -dhparam in s_server. This allows a DH parameter file to be
7182 stated explicitly. If it is not stated then it tries the first server
7183 certificate file. The previous behaviour hard coded the filename
7187 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7188 a public key to be input or output. For example:
7189 openssl rsa -in key.pem -pubout -out pubkey.pem
7190 Also added necessary DSA public key functions to handle this.
7193 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7194 in the message. This was handled by allowing
7195 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7196 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7198 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7199 to the end of the strings whereas this didn't. This would cause problems
7200 if strings read with d2i_ASN1_bytes() were later modified.
7201 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7203 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7204 data and it contains EOF it will end up returning an error. This is
7205 caused by input 46 bytes long. The cause is due to the way base64
7206 BIOs find the start of base64 encoded data. They do this by trying a
7207 trial decode on each line until they find one that works. When they
7208 do a flag is set and it starts again knowing it can pass all the
7209 data directly through the decoder. Unfortunately it doesn't reset
7210 the context it uses. This means that if EOF is reached an attempt
7211 is made to pass two EOFs through the context and this causes the
7212 resulting error. This can also cause other problems as well. As is
7213 usual with these problems it takes *ages* to find and the fix is
7214 trivial: move one line.
7215 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7217 *) Ugly workaround to get s_client and s_server working under Windows. The
7218 old code wouldn't work because it needed to select() on sockets and the
7219 tty (for keypresses and to see if data could be written). Win32 only
7220 supports select() on sockets so we select() with a 1s timeout on the
7221 sockets and then see if any characters are waiting to be read, if none
7222 are present then we retry, we also assume we can always write data to
7223 the tty. This isn't nice because the code then blocks until we've
7224 received a complete line of data and it is effectively polling the
7225 keyboard at 1s intervals: however it's quite a bit better than not
7226 working at all :-) A dedicated Windows application might handle this
7227 with an event loop for example.
7230 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7231 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7232 will be called when RSA_sign() and RSA_verify() are used. This is useful
7233 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7234 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7235 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7236 This necessitated the support of an extra signature type NID_md5_sha1
7237 for SSL signatures and modifications to the SSL library to use it instead
7238 of calling RSA_public_decrypt() and RSA_private_encrypt().
7241 *) Add new -verify -CAfile and -CApath options to the crl program, these
7242 will lookup a CRL issuers certificate and verify the signature in a
7243 similar way to the verify program. Tidy up the crl program so it
7244 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7245 less strict. It will now permit CRL extensions even if it is not
7246 a V2 CRL: this will allow it to tolerate some broken CRLs.
7249 *) Initialize all non-automatic variables each time one of the openssl
7250 sub-programs is started (this is necessary as they may be started
7251 multiple times from the "OpenSSL>" prompt).
7252 [Lennart Bang, Bodo Moeller]
7254 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7255 removing all other RSA functionality (this is what NO_RSA does). This
7256 is so (for example) those in the US can disable those operations covered
7257 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7261 *) Non-copying interface to BIO pairs.
7262 (still largely untested)
7265 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7266 ASCII string. This was handled independently in various places before.
7269 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7270 UTF8 strings a character at a time.
7273 *) Use client_version from client hello to select the protocol
7274 (s23_srvr.c) and for RSA client key exchange verification
7275 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7278 *) Add various utility functions to handle SPKACs, these were previously
7279 handled by poking round in the structure internals. Added new function
7280 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7281 print, verify and generate SPKACs. Based on an original idea from
7282 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7285 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7288 *) Allow the config file extension section to be overwritten on the
7289 command line. Based on an original idea from Massimiliano Pala
7290 <madwolf@comune.modena.it>. The new option is called -extensions
7291 and can be applied to ca, req and x509. Also -reqexts to override
7292 the request extensions in req and -crlexts to override the crl extensions
7296 *) Add new feature to the SPKAC handling in ca. Now you can include
7297 the same field multiple times by preceding it by "XXXX." for example:
7300 this is the same syntax as used in the req config file.
7303 *) Allow certificate extensions to be added to certificate requests. These
7304 are specified in a 'req_extensions' option of the req section of the
7305 config file. They can be printed out with the -text option to req but
7306 are otherwise ignored at present.
7309 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7310 data read consists of only the final block it would not decrypted because
7311 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7312 A misplaced 'break' also meant the decrypted final block might not be
7313 copied until the next read.
7316 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7317 a few extra parameters to the DH structure: these will be useful if
7318 for example we want the value of 'q' or implement X9.42 DH.
7321 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7322 provides hooks that allow the default DSA functions or functions on a
7323 "per key" basis to be replaced. This allows hardware acceleration and
7324 hardware key storage to be handled without major modification to the
7325 library. Also added low level modexp hooks and CRYPTO_EX structure and
7326 associated functions.
7329 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7330 as "read only": it can't be written to and the buffer it points to will
7331 not be freed. Reading from a read only BIO is much more efficient than
7332 a normal memory BIO. This was added because there are several times when
7333 an area of memory needs to be read from a BIO. The previous method was
7334 to create a memory BIO and write the data to it, this results in two
7335 copies of the data and an O(n^2) reading algorithm. There is a new
7336 function BIO_new_mem_buf() which creates a read only memory BIO from
7337 an area of memory. Also modified the PKCS#7 routines to use read only
7341 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7342 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7343 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7344 but a retry condition occured while trying to read the rest.
7347 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7348 NID_pkcs7_encrypted by default: this was wrong since this should almost
7349 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7350 the encrypted data type: this is a more sensible place to put it and it
7351 allows the PKCS#12 code to be tidied up that duplicated this
7355 *) Changed obj_dat.pl script so it takes its input and output files on
7356 the command line. This should avoid shell escape redirection problems
7360 *) Initial support for certificate extension requests, these are included
7361 in things like Xenroll certificate requests. Included functions to allow
7362 extensions to be obtained and added.
7365 *) -crlf option to s_client and s_server for sending newlines as
7366 CRLF (as required by many protocols).
7369 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7371 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7372 [Ralf S. Engelschall]
7374 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7375 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7377 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7381 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7382 DH parameters/keys (q is lost during that conversion, but the resulting
7383 DH parameters contain its length).
7385 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7386 much faster than DH_generate_parameters (which creates parameters
7387 where p = 2*q + 1), and also the smaller q makes DH computations
7388 much more efficient (160-bit exponentiation instead of 1024-bit
7389 exponentiation); so this provides a convenient way to support DHE
7390 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7391 utter importance to use
7392 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7394 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7395 when such DH parameters are used, because otherwise small subgroup
7396 attacks may become possible!
7399 *) Avoid memory leak in i2d_DHparams.
7402 *) Allow the -k option to be used more than once in the enc program:
7403 this allows the same encrypted message to be read by multiple recipients.
7406 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7407 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7408 it will always use the numerical form of the OID, even if it has a short
7412 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7413 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7414 otherwise bn_mod_exp was called. In the case of hardware keys for example
7415 no private key components need be present and it might store extra data
7416 in the RSA structure, which cannot be accessed from bn_mod_exp.
7417 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7418 private key operations.
7421 *) Added support for SPARC Linux.
7424 *) pem_password_cb function type incompatibly changed from
7425 typedef int pem_password_cb(char *buf, int size, int rwflag);
7427 ....(char *buf, int size, int rwflag, void *userdata);
7428 so that applications can pass data to their callbacks:
7429 The PEM[_ASN1]_{read,write}... functions and macros now take an
7430 additional void * argument, which is just handed through whenever
7431 the password callback is called.
7432 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7434 New function SSL_CTX_set_default_passwd_cb_userdata.
7436 Compatibility note: As many C implementations push function arguments
7437 onto the stack in reverse order, the new library version is likely to
7438 interoperate with programs that have been compiled with the old
7439 pem_password_cb definition (PEM_whatever takes some data that
7440 happens to be on the stack as its last argument, and the callback
7441 just ignores this garbage); but there is no guarantee whatsoever that
7444 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7445 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7446 problems not only on Windows, but also on some Unix platforms.
7447 To avoid problematic command lines, these definitions are now in an
7448 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7449 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7452 *) MIPS III/IV assembler module is reimplemented.
7455 *) More DES library cleanups: remove references to srand/rand and
7456 delete an unused file.
7459 *) Add support for the the free Netwide assembler (NASM) under Win32,
7460 since not many people have MASM (ml) and it can be hard to obtain.
7461 This is currently experimental but it seems to work OK and pass all
7462 the tests. Check out INSTALL.W32 for info.
7465 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7466 without temporary keys kept an extra copy of the server key,
7467 and connections with temporary keys did not free everything in case
7471 *) New function RSA_check_key and new openssl rsa option -check
7472 for verifying the consistency of RSA keys.
7473 [Ulf Moeller, Bodo Moeller]
7475 *) Various changes to make Win32 compile work:
7476 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7477 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7478 comparison" warnings.
7479 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7482 *) Add a debugging option to PKCS#5 v2 key generation function: when
7483 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7484 derived keys are printed to stderr.
7487 *) Copy the flags in ASN1_STRING_dup().
7488 [Roman E. Pavlov <pre@mo.msk.ru>]
7490 *) The x509 application mishandled signing requests containing DSA
7491 keys when the signing key was also DSA and the parameters didn't match.
7493 It was supposed to omit the parameters when they matched the signing key:
7494 the verifying software was then supposed to automatically use the CA's
7495 parameters if they were absent from the end user certificate.
7497 Omitting parameters is no longer recommended. The test was also
7498 the wrong way round! This was probably due to unusual behaviour in
7499 EVP_cmp_parameters() which returns 1 if the parameters match.
7500 This meant that parameters were omitted when they *didn't* match and
7501 the certificate was useless. Certificates signed with 'ca' didn't have
7503 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7505 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7506 The interface is as follows:
7507 Applications can use
7508 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7509 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7510 "off" is now the default.
7511 The library internally uses
7512 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7513 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7514 to disable memory-checking temporarily.
7516 Some inconsistent states that previously were possible (and were
7517 even the default) are now avoided.
7519 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7520 with each memory chunk allocated; this is occasionally more helpful
7521 than just having a counter.
7523 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7525 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7529 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7530 which largely parallels "options", but is for changing API behaviour,
7531 whereas "options" are about protocol behaviour.
7532 Initial "mode" flags are:
7534 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7535 a single record has been written.
7536 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7537 retries use the same buffer location.
7538 (But all of the contents must be
7542 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7545 *) Fix problems with no-hmac etc.
7546 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7548 *) New functions RSA_get_default_method(), RSA_set_method() and
7549 RSA_get_method(). These allows replacement of RSA_METHODs without having
7550 to mess around with the internals of an RSA structure.
7553 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7554 Also really enable memory leak checks in openssl.c and in some
7556 [Chad C. Mulligan, Bodo Moeller]
7558 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7559 up the length of negative integers. This has now been simplified to just
7560 store the length when it is first determined and use it later, rather
7561 than trying to keep track of where data is copied and updating it to
7563 [Steve Henson, reported by Brien Wheeler
7564 <bwheeler@authentica-security.com>]
7566 *) Add a new function PKCS7_signatureVerify. This allows the verification
7567 of a PKCS#7 signature but with the signing certificate passed to the
7568 function itself. This contrasts with PKCS7_dataVerify which assumes the
7569 certificate is present in the PKCS#7 structure. This isn't always the
7570 case: certificates can be omitted from a PKCS#7 structure and be
7571 distributed by "out of band" means (such as a certificate database).
7574 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7575 function prototypes in pem.h, also change util/mkdef.pl to add the
7576 necessary function names.
7579 *) mk1mf.pl (used by Windows builds) did not properly read the
7580 options set by Configure in the top level Makefile, and Configure
7581 was not even able to write more than one option correctly.
7582 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7585 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7586 file to be loaded from a BIO or FILE pointer. The BIO version will
7587 for example allow memory BIOs to contain config info.
7590 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7591 Whoever hopes to achieve shared-library compatibility across versions
7592 must use this, not the compile-time macro.
7593 (Exercise 0.9.4: Which is the minimum library version required by
7595 Note: All this applies only to multi-threaded programs, others don't
7599 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7600 through a BIO pair triggered the default case, i.e.
7601 SSLerr(...,SSL_R_UNKNOWN_STATE).
7604 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7605 can use the SSL library even if none of the specific BIOs is
7609 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7610 for the encoded length.
7611 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7613 *) Add initial documentation of the X509V3 functions.
7616 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7617 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7618 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7619 secure PKCS#8 private key format with a high iteration count.
7622 *) Fix determination of Perl interpreter: A perl or perl5
7623 _directory_ in $PATH was also accepted as the interpreter.
7624 [Ralf S. Engelschall]
7626 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7627 wrong with it but it was very old and did things like calling
7628 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7632 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7633 to use the new extension code.
7636 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7637 with macros. This should make it easier to change their form, add extra
7638 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7642 *) Add to configuration table a new entry that can specify an alternative
7643 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7644 according to Mark Crispin <MRC@Panda.COM>.
7648 *) DES CBC did not update the IV. Weird.
7651 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7652 Changing the behaviour of the former might break existing programs --
7653 where IV updating is needed, des_ncbc_encrypt can be used.
7656 *) When bntest is run from "make test" it drives bc to check its
7657 calculations, as well as internally checking them. If an internal check
7658 fails, it needs to cause bc to give a non-zero result or make test carries
7659 on without noticing the failure. Fixed.
7662 *) DES library cleanups.
7665 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7666 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7667 ciphers. NOTE: although the key derivation function has been verified
7668 against some published test vectors it has not been extensively tested
7669 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7673 *) Instead of "mkdir -p", which is not fully portable, use new
7674 Perl script "util/mkdir-p.pl".
7677 *) Rewrite the way password based encryption (PBE) is handled. It used to
7678 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7679 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7680 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7681 the 'parameter' field of the AlgorithmIdentifier is passed to the
7682 underlying key generation function so it must do its own ASN1 parsing.
7683 This has also changed the EVP_PBE_CipherInit() function which now has a
7684 'parameter' argument instead of literal salt and iteration count values
7685 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7688 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7689 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7690 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7691 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7692 value was just used as a "magic string" and not used directly its
7693 value doesn't matter.
7696 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7700 *) "linux-sparc64" configuration (ultrapenguin).
7701 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7702 "linux-sparc" configuration.
7703 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7705 *) config now generates no-xxx options for missing ciphers.
7708 *) Support the EBCDIC character set (work in progress).
7709 File ebcdic.c not yet included because it has a different license.
7710 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7712 *) Support BS2000/OSD-POSIX.
7713 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7715 *) Make callbacks for key generation use void * instead of char *.
7718 *) Make S/MIME samples compile (not yet tested).
7721 *) Additional typesafe stacks.
7724 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7728 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7730 *) New configuration variant "sco5-gcc".
7732 *) Updated some demos.
7733 [Sean O Riordain, Wade Scholine]
7735 *) Add missing BIO_free at exit of pkcs12 application.
7738 *) Fix memory leak in conf.c.
7741 *) Updates for Win32 to assembler version of MD5.
7744 *) Set #! path to perl in apps/der_chop to where we found it
7745 instead of using a fixed path.
7748 *) SHA library changes for irix64-mips4-cc.
7751 *) Improvements for VMS support.
7755 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7757 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7758 This also avoids the problems with SC4.2 and unpatched SC5.
7759 [Andy Polyakov <appro@fy.chalmers.se>]
7761 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7762 These are required because of the typesafe stack would otherwise break
7763 existing code. If old code used a structure member which used to be STACK
7764 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7765 sk_num or sk_value it would produce an error because the num, data members
7766 are not present in STACK_OF. Now it just produces a warning. sk_set
7767 replaces the old method of assigning a value to sk_value
7768 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7769 that does this will no longer work (and should use sk_set instead) but
7770 this could be regarded as a "questionable" behaviour anyway.
7773 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7774 correctly handle encrypted S/MIME data.
7777 *) Change type of various DES function arguments from des_cblock
7778 (which means, in function argument declarations, pointer to char)
7779 to des_cblock * (meaning pointer to array with 8 char elements),
7780 which allows the compiler to do more typechecking; it was like
7781 that back in SSLeay, but with lots of ugly casts.
7783 Introduce new type const_des_cblock.
7786 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7787 problems: find RecipientInfo structure that matches recipient certificate
7788 and initialise the ASN1 structures properly based on passed cipher.
7791 *) Belatedly make the BN tests actually check the results.
7794 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7795 to and from BNs: it was completely broken. New compilation option
7796 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7797 key elements as negative integers.
7800 *) Reorganize and speed up MD5.
7801 [Andy Polyakov <appro@fy.chalmers.se>]
7804 [Richard Levitte <richard@levitte.org>]
7806 *) New option -out to asn1parse to allow the parsed structure to be
7807 output to a file. This is most useful when combined with the -strparse
7808 option to examine the output of things like OCTET STRINGS.
7811 *) Make SSL library a little more fool-proof by not requiring any longer
7812 that SSL_set_{accept,connect}_state be called before
7813 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7814 in many applications because usually everything *appeared* to work as
7815 intended anyway -- now it really works as intended).
7818 *) Move openssl.cnf out of lib/.
7821 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7822 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7823 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7824 [Ralf S. Engelschall]
7826 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7827 handle PKCS#7 enveloped data properly.
7828 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7830 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7831 copying pointers. The cert_st handling is changed by this in
7832 various ways (and thus what used to be known as ctx->default_cert
7833 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7834 any longer when s->cert does not give us what we need).
7835 ssl_cert_instantiate becomes obsolete by this change.
7836 As soon as we've got the new code right (possibly it already is?),
7837 we have solved a couple of bugs of the earlier code where s->cert
7838 was used as if it could not have been shared with other SSL structures.
7840 Note that using the SSL API in certain dirty ways now will result
7841 in different behaviour than observed with earlier library versions:
7842 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7843 does not influence s as it used to.
7845 In order to clean up things more thoroughly, inside SSL_SESSION
7846 we don't use CERT any longer, but a new structure SESS_CERT
7847 that holds per-session data (if available); currently, this is
7848 the peer's certificate chain and, for clients, the server's certificate
7849 and temporary key. CERT holds only those values that can have
7850 meaningful defaults in an SSL_CTX.
7853 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7854 from the internal representation. Various PKCS#7 fixes: remove some
7855 evil casts and set the enc_dig_alg field properly based on the signing
7859 *) Allow PKCS#12 password to be set from the command line or the
7860 environment. Let 'ca' get its config file name from the environment
7861 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7865 *) Allow certificate policies extension to use an IA5STRING for the
7866 organization field. This is contrary to the PKIX definition but
7867 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7871 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7872 without disallowing inline assembler and the like for non-pedantic builds.
7875 *) Support Borland C++ builder.
7876 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7881 *) SHA-1 cleanups and performance enhancements.
7882 [Andy Polyakov <appro@fy.chalmers.se>]
7884 *) Sparc v8plus assembler for the bignum library.
7885 [Andy Polyakov <appro@fy.chalmers.se>]
7887 *) Accept any -xxx and +xxx compiler options in Configure.
7890 *) Update HPUX configuration.
7893 *) Add missing sk_<type>_unshift() function to safestack.h
7894 [Ralf S. Engelschall]
7896 *) New function SSL_CTX_use_certificate_chain_file that sets the
7897 "extra_cert"s in addition to the certificate. (This makes sense
7898 only for "PEM" format files, as chains as a whole are not
7902 *) Support verify_depth from the SSL API.
7903 x509_vfy.c had what can be considered an off-by-one-error:
7904 Its depth (which was not part of the external interface)
7905 was actually counting the number of certificates in a chain;
7906 now it really counts the depth.
7909 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7910 instead of X509err, which often resulted in confusing error
7911 messages since the error codes are not globally unique
7912 (e.g. an alleged error in ssl3_accept when a certificate
7913 didn't match the private key).
7915 *) New function SSL_CTX_set_session_id_context that allows to set a default
7916 value (so that you don't need SSL_set_session_id_context for each
7917 connection using the SSL_CTX).
7920 *) OAEP decoding bug fix.
7923 *) Support INSTALL_PREFIX for package builders, as proposed by
7927 *) New Configure options "threads" and "no-threads". For systems
7928 where the proper compiler options are known (currently Solaris
7929 and Linux), "threads" is the default.
7932 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7935 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7936 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7937 such as /usr/local/bin.
7940 *) "make linux-shared" to build shared libraries.
7941 [Niels Poppe <niels@netbox.org>]
7943 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7946 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7947 extension adding in x509 utility.
7950 *) Remove NOPROTO sections and error code comments.
7953 *) Partial rewrite of the DEF file generator to now parse the ANSI
7957 *) New Configure options --prefix=DIR and --openssldir=DIR.
7960 *) Complete rewrite of the error code script(s). It is all now handled
7961 by one script at the top level which handles error code gathering,
7962 header rewriting and C source file generation. It should be much better
7963 than the old method: it now uses a modified version of Ulf's parser to
7964 read the ANSI prototypes in all header files (thus the old K&R definitions
7965 aren't needed for error creation any more) and do a better job of
7966 translating function codes into names. The old 'ASN1 error code imbedded
7967 in a comment' is no longer necessary and it doesn't use .err files which
7968 have now been deleted. Also the error code call doesn't have to appear all
7969 on one line (which resulted in some large lines...).
7972 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7975 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7976 0 (which usually indicates a closed connection), but continue reading.
7979 *) Fix some race conditions.
7982 *) Add support for CRL distribution points extension. Add Certificate
7983 Policies and CRL distribution points documentation.
7986 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7989 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7990 8 of keying material. Merlin has also confirmed interop with this fix
7991 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7992 [Merlin Hughes <merlin@baltimore.ie>]
7994 *) Fix lots of warnings.
7995 [Richard Levitte <levitte@stacken.kth.se>]
7997 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7998 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7999 [Richard Levitte <levitte@stacken.kth.se>]
8001 *) Fix problems with sizeof(long) == 8.
8002 [Andy Polyakov <appro@fy.chalmers.se>]
8004 *) Change functions to ANSI C.
8007 *) Fix typos in error codes.
8008 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8010 *) Remove defunct assembler files from Configure.
8013 *) SPARC v8 assembler BIGNUM implementation.
8014 [Andy Polyakov <appro@fy.chalmers.se>]
8016 *) Support for Certificate Policies extension: both print and set.
8017 Various additions to support the r2i method this uses.
8020 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8021 return a const string when you are expecting an allocated buffer.
8024 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8025 types DirectoryString and DisplayText.
8028 *) Add code to allow r2i extensions to access the configuration database,
8029 add an LHASH database driver and add several ctx helper functions.
8032 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8033 fail when they extended the size of a BIGNUM.
8036 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8037 support typesafe stack.
8040 *) Fix typo in SSL_[gs]et_options().
8041 [Nils Frostberg <nils@medcom.se>]
8043 *) Delete various functions and files that belonged to the (now obsolete)
8044 old X509V3 handling code.
8047 *) New Configure option "rsaref".
8050 *) Don't auto-generate pem.h.
8053 *) Introduce type-safe ASN.1 SETs.
8056 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8057 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8059 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8060 that links with OpenSSL (well at least cause lots of warnings), but fear
8061 not: the conversion is trivial, and it eliminates loads of evil casts. A
8062 few STACKed things have been converted already. Feel free to convert more.
8063 In the fullness of time, I'll do away with the STACK type altogether.
8066 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8067 specified in <certfile> by updating the entry in the index.txt file.
8068 This way one no longer has to edit the index.txt file manually for
8069 revoking a certificate. The -revoke option does the gory details now.
8070 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8072 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8073 `-text' option at all and this way the `-noout -text' combination was
8074 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8075 [Ralf S. Engelschall]
8077 *) Make sure a corresponding plain text error message exists for the
8078 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8079 verify callback function determined that a certificate was revoked.
8080 [Ralf S. Engelschall]
8082 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8083 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8084 all available cipers including rc5, which was forgotten until now.
8085 In order to let the testing shell script know which algorithms
8086 are available, a new (up to now undocumented) command
8087 "openssl list-cipher-commands" is used.
8090 *) Bugfix: s_client occasionally would sleep in select() when
8091 it should have checked SSL_pending() first.
8094 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8095 the raw DSA values prior to ASN.1 encoding.
8098 *) Tweaks to Configure
8099 [Niels Poppe <niels@netbox.org>]
8101 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8105 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8108 *) New config option to avoid instructions that are illegal on the 80386.
8109 The default code is faster, but requires at least a 486.
8112 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8113 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8114 same as SSL2_VERSION anyway.
8117 *) New "-showcerts" option for s_client.
8120 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8121 application. Various cleanups and fixes.
8124 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8125 modify error routines to work internally. Add error codes and PBE init
8126 to library startup routines.
8129 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8130 packing functions to asn1 and evp. Changed function names and error
8131 codes along the way.
8134 *) PKCS12 integration: and so it begins... First of several patches to
8135 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8136 objects to objects.h
8139 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8140 and display support for Thawte strong extranet extension.
8143 *) Add LinuxPPC support.
8144 [Jeff Dubrule <igor@pobox.org>]
8146 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8147 bn_div_words in alpha.s.
8148 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8150 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8151 OAEP isn't supported when OpenSSL is built with RSAref.
8152 [Ulf Moeller <ulf@fitug.de>]
8154 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8155 so they no longer are missing under -DNOPROTO.
8156 [Soren S. Jorvang <soren@t.dk>]
8159 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8161 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8162 doesn't work when the session is reused. Coming soon!
8165 *) Fix a security hole, that allows sessions to be reused in the wrong
8166 context thus bypassing client cert protection! All software that uses
8167 client certs and session caches in multiple contexts NEEDS PATCHING to
8168 allow session reuse! A fuller solution is in the works.
8169 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8171 *) Some more source tree cleanups (removed obsolete files
8172 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8173 permission on "config" script to be executable) and a fix for the INSTALL
8175 [Ulf Moeller <ulf@fitug.de>]
8177 *) Remove some legacy and erroneous uses of malloc, free instead of
8179 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8181 *) Make rsa_oaep_test return non-zero on error.
8182 [Ulf Moeller <ulf@fitug.de>]
8184 *) Add support for native Solaris shared libraries. Configure
8185 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8186 if someone would make that last step automatic.
8187 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8189 *) ctx_size was not built with the right compiler during "make links". Fixed.
8192 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8193 except NULL ciphers". This means the default cipher list will no longer
8194 enable NULL ciphers. They need to be specifically enabled e.g. with
8195 the string "DEFAULT:eNULL".
8198 *) Fix to RSA private encryption routines: if p < q then it would
8199 occasionally produce an invalid result. This will only happen with
8200 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8203 *) Be less restrictive and allow also `perl util/perlpath.pl
8204 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8205 because this way one can also use an interpreter named `perl5' (which is
8206 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8207 installed as `perl').
8208 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8210 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8211 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8213 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8214 advapi32.lib to Win32 build and change the pem test comparision
8215 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8216 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8217 and crypto/des/ede_cbcm_enc.c.
8220 *) DES quad checksum was broken on big-endian architectures. Fixed.
8223 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8224 Win32 test batch file so it (might) work again. The Win32 test batch file
8225 is horrible: I feel ill....
8228 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8229 in e_os.h. Audit of header files to check ANSI and non ANSI
8230 sections: 10 functions were absent from non ANSI section and not exported
8231 from Windows DLLs. Fixed up libeay.num for new functions.
8234 *) Make `openssl version' output lines consistent.
8235 [Ralf S. Engelschall]
8237 *) Fix Win32 symbol export lists for BIO functions: Added
8238 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8239 to ms/libeay{16,32}.def.
8240 [Ralf S. Engelschall]
8242 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8243 fine under Unix and passes some trivial tests I've now added. But the
8244 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8245 added to make sure no one expects that this stuff really works in the
8246 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8247 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8249 [Ralf S. Engelschall]
8251 *) Fix the generation of two part addresses in perl.
8252 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8254 *) Add config entry for Linux on MIPS.
8255 [John Tobey <jtobey@channel1.com>]
8257 *) Make links whenever Configure is run, unless we are on Windoze.
8260 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8261 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8265 *) Add a useful kludge to allow package maintainers to specify compiler and
8266 other platforms details on the command line without having to patch the
8267 Configure script everytime: One now can use ``perl Configure
8268 <id>:<details>'', i.e. platform ids are allowed to have details appended
8269 to them (seperated by colons). This is treated as there would be a static
8270 pre-configured entry in Configure's %table under key <id> with value
8271 <details> and ``perl Configure <id>'' is called. So, when you want to
8272 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8273 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8274 now, which overrides the FreeBSD-elf entry on-the-fly.
8275 [Ralf S. Engelschall]
8277 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8280 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8281 on the `perl Configure ...' command line. This way one can compile
8282 OpenSSL libraries with Position Independent Code (PIC) which is needed
8283 for linking it into DSOs.
8284 [Ralf S. Engelschall]
8286 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8290 *) Cleaned up the LICENSE document: The official contact for any license
8291 questions now is the OpenSSL core team under openssl-core@openssl.org.
8292 And add a paragraph about the dual-license situation to make sure people
8293 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8294 to the OpenSSL toolkit.
8295 [Ralf S. Engelschall]
8297 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8298 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8299 Additonally cleaned up the `make links' target: Remove unnecessary
8300 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8301 to speed processing and no longer clutter the display with confusing
8302 stuff. Instead only the actually done links are displayed.
8303 [Ralf S. Engelschall]
8305 *) Permit null encryption ciphersuites, used for authentication only. It used
8306 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8307 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8311 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8312 signed attributes when verifying signatures (this would break them),
8313 the detached data encoding was wrong and public keys obtained using
8314 X509_get_pubkey() weren't freed.
8317 *) Add text documentation for the BUFFER functions. Also added a work around
8318 to a Win95 console bug. This was triggered by the password read stuff: the
8319 last character typed gets carried over to the next fread(). If you were
8320 generating a new cert request using 'req' for example then the last
8321 character of the passphrase would be CR which would then enter the first
8325 *) Added the new `Includes OpenSSL Cryptography Software' button as
8326 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8327 button and can be used by applications based on OpenSSL to show the
8328 relationship to the OpenSSL project.
8329 [Ralf S. Engelschall]
8331 *) Remove confusing variables in function signatures in files
8332 ssl/ssl_lib.c and ssl/ssl.h.
8333 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8335 *) Don't install bss_file.c under PREFIX/include/
8336 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8338 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8339 functions that return function pointers and has support for NT specific
8340 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8341 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8342 unsigned to signed types: this was killing the Win32 compile.
8345 *) Add new certificate file to stack functions,
8346 SSL_add_dir_cert_subjects_to_stack() and
8347 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8348 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8349 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8350 This means that Apache-SSL and similar packages don't have to mess around
8351 to add as many CAs as they want to the preferred list.
8354 *) Experiment with doxygen documentation. Currently only partially applied to
8356 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8357 openssl.doxy as the configuration file.
8360 *) Get rid of remaining C++-style comments which strict C compilers hate.
8361 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8363 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8364 compiled in by default: it has problems with large keys.
8367 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8368 DH private keys and/or callback functions which directly correspond to
8369 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8370 is needed for applications which have to configure certificates on a
8371 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8373 For the RSA certificate situation is makes no difference, but
8374 for the DSA certificate situation this fixes the "no shared cipher"
8375 problem where the OpenSSL cipher selection procedure failed because the
8376 temporary keys were not overtaken from the context and the API provided
8377 no way to reconfigure them.
8378 The new functions now let applications reconfigure the stuff and they
8379 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8380 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8381 non-public-API function ssl_cert_instantiate() is used as a helper
8382 function and also to reduce code redundancy inside ssl_rsa.c.
8383 [Ralf S. Engelschall]
8385 *) Move s_server -dcert and -dkey options out of the undocumented feature
8386 area because they are useful for the DSA situation and should be
8387 recognized by the users.
8388 [Ralf S. Engelschall]
8390 *) Fix the cipher decision scheme for export ciphers: the export bits are
8391 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8392 SSL_EXP_MASK. So, the original variable has to be used instead of the
8393 already masked variable.
8394 [Richard Levitte <levitte@stacken.kth.se>]
8396 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8397 [Richard Levitte <levitte@stacken.kth.se>]
8399 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8400 from `int' to `unsigned int' because it's a length and initialized by
8401 EVP_DigestFinal() which expects an `unsigned int *'.
8402 [Richard Levitte <levitte@stacken.kth.se>]
8404 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8405 script. Instead use the usual Shell->Perl transition trick.
8406 [Ralf S. Engelschall]
8408 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8409 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8410 -noout -modulus' as it's already the case for `openssl rsa -noout
8411 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8412 currently the public key is printed (a decision which was already done by
8413 `openssl dsa -modulus' in the past) which serves a similar purpose.
8414 Additionally the NO_RSA no longer completely removes the whole -modulus
8415 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8417 [Ralf S. Engelschall]
8419 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8420 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8421 [Arne Ansper <arne@ats.cyber.ee>]
8423 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8424 to be added. Now both 'req' and 'ca' can use new objects defined in the
8428 *) Add cool BIO that does syslog (or event log on NT).
8429 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8431 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8432 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8433 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8434 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8437 *) Add preliminary config info for new extension code.
8440 *) Make RSA_NO_PADDING really use no padding.
8441 [Ulf Moeller <ulf@fitug.de>]
8443 *) Generate errors when private/public key check is done.
8446 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8447 for some CRL extensions and new objects added.
8450 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8451 key usage extension and fuller support for authority key id.
8454 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8455 padding method for RSA, which is recommended for new applications in PKCS
8456 #1 v2.0 (RFC 2437, October 1998).
8457 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8458 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8459 against Bleichbacher's attack on RSA.
8460 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8463 *) Updates to the new SSL compression code
8464 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8466 *) Fix so that the version number in the master secret, when passed
8467 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8468 (because the server will not accept higher), that the version number
8469 is 0x03,0x01, not 0x03,0x00
8470 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8472 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8473 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8474 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8477 *) Support for RAW extensions where an arbitrary extension can be
8478 created by including its DER encoding. See apps/openssl.cnf for
8482 *) Make sure latest Perl versions don't interpret some generated C array
8483 code as Perl array code in the crypto/err/err_genc.pl script.
8484 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8486 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8487 not many people have the assembler. Various Win32 compilation fixes and
8488 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8492 *) Modify configure script 'Configure' to automatically create crypto/date.h
8493 file under Win32 and also build pem.h from pem.org. New script
8494 util/mkfiles.pl to create the MINFO file on environments that can't do a
8495 'make files': perl util/mkfiles.pl >MINFO should work.
8498 *) Major rework of DES function declarations, in the pursuit of correctness
8499 and purity. As a result, many evil casts evaporated, and some weirdness,
8500 too. You may find this causes warnings in your code. Zapping your evil
8501 casts will probably fix them. Mostly.
8504 *) Fix for a typo in asn1.h. Bug fix to object creation script
8505 obj_dat.pl. It considered a zero in an object definition to mean
8506 "end of object": none of the objects in objects.h have any zeros
8507 so it wasn't spotted.
8508 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8510 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8511 Masking (CBCM). In the absence of test vectors, the best I have been able
8512 to do is check that the decrypt undoes the encrypt, so far. Send me test
8513 vectors if you have them.
8516 *) Correct calculation of key length for export ciphers (too much space was
8517 allocated for null ciphers). This has not been tested!
8520 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8521 message is now correct (it understands "crypto" and "ssl" on its
8522 command line). There is also now an "update" option. This will update
8523 the util/ssleay.num and util/libeay.num files with any new functions.
8525 perl util/mkdef.pl crypto ssl update
8526 it will update them.
8529 *) Overhauled the Perl interface (perl/*):
8530 - ported BN stuff to OpenSSL's different BN library
8531 - made the perl/ source tree CVS-aware
8532 - renamed the package from SSLeay to OpenSSL (the files still contain
8533 their history because I've copied them in the repository)
8534 - removed obsolete files (the test scripts will be replaced
8535 by better Test::Harness variants in the future)
8536 [Ralf S. Engelschall]
8538 *) First cut for a very conservative source tree cleanup:
8539 1. merge various obsolete readme texts into doc/ssleay.txt
8540 where we collect the old documents and readme texts.
8541 2. remove the first part of files where I'm already sure that we no
8542 longer need them because of three reasons: either they are just temporary
8543 files which were left by Eric or they are preserved original files where
8544 I've verified that the diff is also available in the CVS via "cvs diff
8545 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8546 the crypto/md/ stuff).
8547 [Ralf S. Engelschall]
8549 *) More extension code. Incomplete support for subject and issuer alt
8550 name, issuer and authority key id. Change the i2v function parameters
8551 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8552 what that's for :-) Fix to ASN1 macro which messed up
8553 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8556 *) Preliminary support for ENUMERATED type. This is largely copied from the
8560 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8561 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8563 *) Make sure `make rehash' target really finds the `openssl' program.
8564 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8566 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8567 like to hear about it if this slows down other processors.
8570 *) Add CygWin32 platform information to Configure script.
8571 [Alan Batie <batie@aahz.jf.intel.com>]
8573 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8574 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8576 *) New program nseq to manipulate netscape certificate sequences
8579 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8583 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8584 but the BN code had some problems that would cause failures when
8585 doing certificate verification and some other functions.
8586 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8588 *) Add ASN1 and PEM code to support netscape certificate sequences.
8591 *) Add ASN1 and PEM code to support netscape certificate sequences.
8594 *) Add several PKIX and private extended key usage OIDs.
8597 *) Modify the 'ca' program to handle the new extension code. Modify
8598 openssl.cnf for new extension format, add comments.
8601 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8602 and add a sample to openssl.cnf so req -x509 now adds appropriate
8606 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8607 error code, add initial support to X509_print() and x509 application.
8610 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8611 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8612 stuff is currently isolated and isn't even compiled yet.
8615 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8616 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8617 Removed the versions check from X509 routines when loading extensions:
8618 this allows certain broken certificates that don't set the version
8619 properly to be processed.
8622 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8623 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8624 can still be regenerated with "make depend".
8627 *) Spelling mistake in C version of CAST-128.
8628 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8630 *) Changes to the error generation code. The perl script err-code.pl
8631 now reads in the old error codes and retains the old numbers, only
8632 adding new ones if necessary. It also only changes the .err files if new
8633 codes are added. The makefiles have been modified to only insert errors
8634 when needed (to avoid needlessly modifying header files). This is done
8635 by only inserting errors if the .err file is newer than the auto generated
8636 C file. To rebuild all the error codes from scratch (the old behaviour)
8637 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8638 or delete all the .err files.
8641 *) CAST-128 was incorrectly implemented for short keys. The C version has
8642 been fixed, but is untested. The assembler versions are also fixed, but
8643 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8644 to regenerate it if needed.
8645 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8646 Hagino <itojun@kame.net>]
8648 *) File was opened incorrectly in randfile.c.
8649 [Ulf Möller <ulf@fitug.de>]
8651 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8652 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8653 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8654 al: it's just almost always a UTCTime. Note this patch adds new error
8655 codes so do a "make errors" if there are problems.
8658 *) Correct Linux 1 recognition in config.
8659 [Ulf Möller <ulf@fitug.de>]
8661 *) Remove pointless MD5 hash when using DSA keys in ca.
8662 [Anonymous <nobody@replay.com>]
8664 *) Generate an error if given an empty string as a cert directory. Also
8665 generate an error if handed NULL (previously returned 0 to indicate an
8666 error, but didn't set one).
8667 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8669 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8672 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8673 parameters. This was causing a warning which killed off the Win32 compile.
8676 *) Remove C++ style comments from crypto/bn/bn_local.h.
8677 [Neil Costigan <neil.costigan@celocom.com>]
8679 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8680 based on a text string, looking up short and long names and finally
8681 "dot" format. The "dot" format stuff didn't work. Added new function
8682 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8683 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8684 OID is not part of the table.
8687 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8688 X509_LOOKUP_by_alias().
8691 *) Sort openssl functions by name.
8694 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8695 encryption from sample DSA keys (in case anyone is interested the password
8699 *) Make _all_ *_free functions accept a NULL pointer.
8700 [Frans Heymans <fheymans@isaserver.be>]
8702 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8704 [Anonymous <nobody@replay.com>]
8706 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8707 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8709 *) Don't blow it for numeric -newkey arguments to apps/req.
8710 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8712 *) Temp key "for export" tests were wrong in s3_srvr.c.
8713 [Anonymous <nobody@replay.com>]
8715 *) Add prototype for temp key callback functions
8716 SSL_CTX_set_tmp_{rsa,dh}_callback().
8719 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8720 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8723 *) X509_name_add_entry() freed the wrong thing after an error.
8724 [Arne Ansper <arne@ats.cyber.ee>]
8726 *) rsa_eay.c would attempt to free a NULL context.
8727 [Arne Ansper <arne@ats.cyber.ee>]
8729 *) BIO_s_socket() had a broken should_retry() on Windoze.
8730 [Arne Ansper <arne@ats.cyber.ee>]
8732 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8733 [Arne Ansper <arne@ats.cyber.ee>]
8735 *) Make sure the already existing X509_STORE->depth variable is initialized
8736 in X509_STORE_new(), but document the fact that this variable is still
8737 unused in the certificate verification process.
8738 [Ralf S. Engelschall]
8740 *) Fix the various library and apps files to free up pkeys obtained from
8741 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8744 *) Fix reference counting in X509_PUBKEY_get(). This makes
8745 demos/maurice/example2.c work, amongst others, probably.
8746 [Steve Henson and Ben Laurie]
8748 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8749 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8750 are no longer created. This way we have a single and consistent command
8751 line interface `openssl <command>', similar to `cvs <command>'.
8752 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8754 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8755 BIT STRING wrapper always have zero unused bits.
8758 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8761 *) Make the top-level INSTALL documentation easier to understand.
8764 *) Makefiles updated to exit if an error occurs in a sub-directory
8765 make (including if user presses ^C) [Paul Sutton]
8767 *) Make Montgomery context stuff explicit in RSA data structure.
8770 *) Fix build order of pem and err to allow for generated pem.h.
8773 *) Fix renumbering bug in X509_NAME_delete_entry().
8776 *) Enhanced the err-ins.pl script so it makes the error library number
8777 global and can add a library name. This is needed for external ASN1 and
8778 other error libraries.
8781 *) Fixed sk_insert which never worked properly.
8784 *) Fix ASN1 macros so they can handle indefinite length construted
8785 EXPLICIT tags. Some non standard certificates use these: they can now
8789 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8790 into a single doc/ssleay.txt bundle. This way the information is still
8791 preserved but no longer messes up this directory. Now it's new room for
8792 the new set of documenation files.
8793 [Ralf S. Engelschall]
8795 *) SETs were incorrectly DER encoded. This was a major pain, because they
8796 shared code with SEQUENCEs, which aren't coded the same. This means that
8797 almost everything to do with SETs or SEQUENCEs has either changed name or
8798 number of arguments.
8799 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8801 *) Fix test data to work with the above.
8804 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8805 was already fixed by Eric for 0.9.1 it seems.
8806 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8808 *) Autodetect FreeBSD3.
8811 *) Fix various bugs in Configure. This affects the following platforms:
8815 unixware-2.0-pentium
8819 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8820 before they are needed.
8823 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8827 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8829 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8830 changed SSLeay to OpenSSL in version strings.
8831 [Ralf S. Engelschall]
8833 *) Some fixups to the top-level documents.
8836 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8837 because the symlink to include/ was missing.
8838 [Ralf S. Engelschall]
8840 *) Incorporated the popular no-RSA/DSA-only patches
8841 which allow to compile a RSA-free SSLeay.
8842 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8844 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8845 when "ssleay" is still not found.
8846 [Ralf S. Engelschall]
8848 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8849 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8851 *) Updated the README file.
8852 [Ralf S. Engelschall]
8854 *) Added various .cvsignore files in the CVS repository subdirs
8855 to make a "cvs update" really silent.
8856 [Ralf S. Engelschall]
8858 *) Recompiled the error-definition header files and added
8859 missing symbols to the Win32 linker tables.
8860 [Ralf S. Engelschall]
8862 *) Cleaned up the top-level documents;
8863 o new files: CHANGES and LICENSE
8864 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8865 o merged COPYRIGHT into LICENSE
8866 o removed obsolete TODO file
8867 o renamed MICROSOFT to INSTALL.W32
8868 [Ralf S. Engelschall]
8870 *) Removed dummy files from the 0.9.1b source tree:
8871 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8872 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8873 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8874 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8875 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8876 [Ralf S. Engelschall]
8878 *) Added various platform portability fixes.
8881 *) The Genesis of the OpenSSL rpject:
8882 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8883 Young and Tim J. Hudson created while they were working for C2Net until
8885 [The OpenSSL Project]
8888 Changes between 0.9.0b and 0.9.1b [not released]
8890 *) Updated a few CA certificates under certs/
8893 *) Changed some BIGNUM api stuff.
8896 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8897 DGUX x86, Linux Alpha, etc.
8900 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8901 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8905 *) Add -strparse option to asn1pars program which parses nested
8907 [Dr Stephen Henson <shenson@bigfoot.com>]
8909 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8912 *) DSA fix for "ca" program.
8915 *) Added "-genkey" option to "dsaparam" program.
8918 *) Added RIPE MD160 (rmd160) message digest.
8921 *) Added -a (all) option to "ssleay version" command.
8924 *) Added PLATFORM define which is the id given to Configure.
8927 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8930 *) Extended the ASN.1 parser routines.
8933 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8936 *) Added a BN_CTX to the BN library.
8939 *) Fixed the weak key values in DES library
8942 *) Changed API in EVP library for cipher aliases.
8945 *) Added support for RC2/64bit cipher.
8948 *) Converted the lhash library to the crypto/mem.c functions.
8951 *) Added more recognized ASN.1 object ids.
8954 *) Added more RSA padding checks for SSL/TLS.
8957 *) Added BIO proxy/filter functionality.
8960 *) Added extra_certs to SSL_CTX which can be used
8961 send extra CA certificates to the client in the CA cert chain sending
8962 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8965 *) Now Fortezza is denied in the authentication phase because
8966 this is key exchange mechanism is not supported by SSLeay at all.
8969 *) Additional PKCS1 checks.
8972 *) Support the string "TLSv1" for all TLS v1 ciphers.
8975 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8976 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8979 *) Fixed a few memory leaks.
8982 *) Fixed various code and comment typos.
8985 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8986 bytes sent in the client random.
8987 [Edward Bishop <ebishop@spyglass.com>]