5 Changes between 0.9.8i and 0.9.9 [xx XXX xxxx]
7 *) Delta CRL support. New use deltas option which will attempt to locate
8 and search any appropriate delta CRLs available.
10 This work was sponsored by Google.
13 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
14 code and add additional score elements. Validate alternate CRL paths
15 as part of the CRL checking and indicate a new error "CRL path validation
16 error" in this case. Applications wanting additional details can use
17 the verify callback and check the new "parent" field. If this is not
18 NULL CRL path validation is taking place. Existing applications wont
19 see this because it requires extended CRL support which is off by
22 This work was sponsored by Google.
25 *) Support for freshest CRL extension.
27 This work was sponsored by Google.
30 *) Initial indirect CRL support. Currently only supported in the CRLs
31 passed directly and not via lookup. Process certificate issuer
32 CRL entry extension and lookup CRL entries by bother issuer name
33 and serial number. Check and process CRL issuer entry in IDP extension.
35 This work was sponsored by Google.
38 *) Add support for distinct certificate and CRL paths. The CRL issuer
39 certificate is validated separately in this case. Only enabled if
40 an extended CRL support flag is set: this flag will enable additional
41 CRL functionality in future.
43 This work was sponsored by Google.
46 *) Add support for policy mappings extension.
48 This work was sponsored by Google.
51 *) Fixes to pathlength constraint, self issued certificate handling,
52 policy processing to align with RFC3280 and PKITS tests.
54 This work was sponsored by Google.
57 *) Support for name constraints certificate extension. DN, email, DNS
58 and URI types are currently supported.
60 This work was sponsored by Google.
63 *) To cater for systems that provide a pointer-based thread ID rather
64 than numeric, deprecate the current numeric thread ID mechanism and
65 replace it with a structure and associated callback type. This
66 mechanism allows a numeric "hash" to be extracted from a thread ID in
67 either case, and on platforms where pointers are larger than 'long',
68 mixing is done to help ensure the numeric 'hash' is usable even if it
69 can't be guaranteed unique. The default mechanism is to use "&errno"
70 as a pointer-based thread ID to distinguish between threads.
72 Applications that want to provide their own thread IDs should now use
73 CRYPTO_THREADID_set_callback() to register a callback that will call
74 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
76 Note that ERR_remove_state() is now deprecated, because it is tied
77 to the assumption that thread IDs are numeric. ERR_remove_state(0)
78 to free the current thread's error state should be replaced by
79 ERR_remove_thread_state(NULL).
81 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
82 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
83 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
84 application was previously providing a numeric thread callback that
85 was inappropriate for distinguishing threads, then uniqueness might
86 have been obtained with &errno that happened immediately in the
87 intermediate development versions of OpenSSL; this is no longer the
88 case, the numeric thread callback will now override the automatic use
90 [Geoff Thorpe, with help from Bodo Moeller]
92 *) Initial support for different CRL issuing certificates. This covers a
93 simple case where the self issued certificates in the chain exist and
94 the real CRL issuer is higher in the existing chain.
96 This work was sponsored by Google.
99 *) Removed effectively defunct crypto/store from the build.
102 *) Revamp of STACK to provide stronger type-checking. Still to come:
103 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
104 ASN1_STRING, CONF_VALUE.
107 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
108 RAM on SSL connections. This option can save about 34k per idle SSL.
111 *) Revamp of LHASH to provide stronger type-checking. Still to come:
112 STACK, TXT_DB, bsearch, qsort.
115 *) Initial support for Cryptographic Message Syntax (aka CMS) based
116 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
117 support for data, signedData, compressedData, digestedData and
118 encryptedData, envelopedData types included. Scripts to check against
119 RFC4134 examples draft and interop and consistency checks of many
120 content types and variants.
123 *) Add options to enc utility to support use of zlib compression BIO.
126 *) Extend mk1mf to support importing of options and assembly language
127 files from Configure script, currently only included in VC-WIN32.
128 The assembly language rules can now optionally generate the source
129 files from the associated perl scripts.
132 *) Implement remaining functionality needed to support GOST ciphersuites.
133 Interop testing has been performed using CryptoPro implementations.
134 [Victor B. Wagner <vitus@cryptocom.ru>]
136 *) s390x assembler pack.
139 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
143 *) Implement Opaque PRF Input TLS extension as specified in
144 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
145 official specification yet and no extension type assignment by
146 IANA exists, this extension (for now) will have to be explicitly
147 enabled when building OpenSSL by providing the extension number
148 to use. For example, specify an option
150 -DTLSEXT_TYPE_opaque_prf_input=0x9527
152 to the "config" or "Configure" script to enable the extension,
153 assuming extension number 0x9527 (which is a completely arbitrary
154 and unofficial assignment based on the MD5 hash of the Internet
155 Draft). Note that by doing so, you potentially lose
156 interoperability with other TLS implementations since these might
157 be using the same extension number for other purposes.
159 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
160 opaque PRF input value to use in the handshake. This will create
161 an interal copy of the length-'len' string at 'src', and will
162 return non-zero for success.
164 To get more control and flexibility, provide a callback function
167 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
168 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
172 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
175 Callback function 'cb' will be called in handshakes, and is
176 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
177 Argument 'arg' is for application purposes (the value as given to
178 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
179 be provided to the callback function). The callback function
180 has to return non-zero to report success: usually 1 to use opaque
181 PRF input just if possible, or 2 to enforce use of the opaque PRF
182 input. In the latter case, the library will abort the handshake
183 if opaque PRF input is not successfully negotiated.
185 Arguments 'peerinput' and 'len' given to the callback function
186 will always be NULL and 0 in the case of a client. A server will
187 see the client's opaque PRF input through these variables if
188 available (NULL and 0 otherwise). Note that if the server
189 provides an opaque PRF input, the length must be the same as the
190 length of the client's opaque PRF input.
192 Note that the callback function will only be called when creating
193 a new session (session resumption can resume whatever was
194 previously negotiated), and will not be called in SSL 2.0
195 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
196 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
197 for applications that need to enforce opaque PRF input.
201 *) Update ssl code to support digests other than SHA1+MD5 for handshake
204 [Victor B. Wagner <vitus@cryptocom.ru>]
206 *) Add RFC4507 support to OpenSSL. This includes the corrections in
207 RFC4507bis. The encrypted ticket format is an encrypted encoded
208 SSL_SESSION structure, that way new session features are automatically
211 If a client application caches session in an SSL_SESSION structure
212 support is transparent because tickets are now stored in the encoded
215 The SSL_CTX structure automatically generates keys for ticket
216 protection in servers so again support should be possible
217 with no application modification.
219 If a client or server wishes to disable RFC4507 support then the option
220 SSL_OP_NO_TICKET can be set.
222 Add a TLS extension debugging callback to allow the contents of any client
223 or server extensions to be examined.
225 This work was sponsored by Google.
228 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
229 OpenSSL should now compile cleanly on gcc 4.2
230 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
232 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
233 support including streaming MAC support: this is required for GOST
235 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
237 *) Add option -stream to use PKCS#7 streaming in smime utility. New
238 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
239 to output in BER and PEM format.
242 *) Experimental support for use of HMAC via EVP_PKEY interface. This
243 allows HMAC to be handled via the EVP_DigestSign*() interface. The
244 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
245 ENGINE support for HMAC keys which are unextractable. New -mac and
246 -macopt options to dgst utility.
249 *) New option -sigopt to dgst utility. Update dgst to use
250 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
251 alternative signing paramaters such as X9.31 or PSS in the dgst
255 *) Change ssl_cipher_apply_rule(), the internal function that does
256 the work each time a ciphersuite string requests enabling
257 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
258 removing ("!foo+bar") a class of ciphersuites: Now it maintains
259 the order of disabled ciphersuites such that those ciphersuites
260 that most recently went from enabled to disabled not only stay
261 in order with respect to each other, but also have higher priority
262 than other disabled ciphersuites the next time ciphersuites are
265 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
266 the same ciphersuites as with "HIGH" alone, but in a specific
267 order where the PSK ciphersuites come first (since they are the
268 most recently disabled ciphersuites when "HIGH" is parsed).
270 Also, change ssl_create_cipher_list() (using this new
271 funcionality) such that between otherwise identical
272 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
276 *) Change ssl_create_cipher_list() so that it automatically
277 arranges the ciphersuites in reasonable order before starting
278 to process the rule string. Thus, the definition for "DEFAULT"
279 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
280 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
281 This makes it much easier to arrive at a reasonable default order
282 in applications for which anonymous ciphers are OK (meaning
283 that you can't actually use DEFAULT).
284 [Bodo Moeller; suggested by Victor Duchovni]
286 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
287 processing) into multiple integers instead of setting
288 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
289 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
290 (These masks as well as the individual bit definitions are hidden
291 away into the non-exported interface ssl/ssl_locl.h, so this
292 change to the definition of the SSL_CIPHER structure shouldn't
293 affect applications.) This give us more bits for each of these
294 categories, so there is no longer a need to coagulate AES128 and
295 AES256 into a single algorithm bit, and to coagulate Camellia128
296 and Camellia256 into a single algorithm bit, which has led to all
299 Thus, among other things, the kludge introduced in 0.9.7m and
300 0.9.8e for masking out AES256 independently of AES128 or masking
301 out Camellia256 independently of AES256 is not needed here in 0.9.9.
303 With the change, we also introduce new ciphersuite aliases that
304 so far were missing: "AES128", "AES256", "CAMELLIA128", and
308 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
309 Use the leftmost N bytes of the signature input if the input is
310 larger than the prime q (with N being the size in bytes of q).
313 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
314 it yet and it is largely untested.
317 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
320 *) Initial incomplete changes to avoid need for function casts in OpenSSL
321 some compilers (gcc 4.2 and later) reject their use. Safestack is
322 reimplemented. Update ASN1 to avoid use of legacy functions.
325 *) Win32/64 targets are linked with Winsock2.
328 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
329 to external functions. This can be used to increase CRL handling
330 efficiency especially when CRLs are very large by (for example) storing
331 the CRL revoked certificates in a database.
334 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
335 new CRLs added to a directory can be used. New command line option
336 -verify_return_error to s_client and s_server. This causes real errors
337 to be returned by the verify callback instead of carrying on no matter
338 what. This reflects the way a "real world" verify callback would behave.
341 *) GOST engine, supporting several GOST algorithms and public key formats.
342 Kindly donated by Cryptocom.
345 *) Partial support for Issuing Distribution Point CRL extension. CRLs
346 partitioned by DP are handled but no indirect CRL or reason partitioning
347 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
348 selected via a scoring technique which handles IDP and AKID in CRLs.
351 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
352 will ultimately be used for all verify operations: this will remove the
353 X509_STORE dependency on certificate verification and allow alternative
354 lookup methods. X509_STORE based implementations of these two callbacks.
357 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
358 Modify get_crl() to find a valid (unexpired) CRL if possible.
361 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
362 this would be called X509_CRL_cmp() but that name is already used by
363 a function that just compares CRL issuer names. Cache several CRL
364 extensions in X509_CRL structure and cache CRLDP in X509.
367 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
368 this maps equivalent X509_NAME structures into a consistent structure.
369 Name comparison can then be performed rapidly using memcmp().
372 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
376 *) Allow digests to supply their own micalg string for S/MIME type using
377 the ctrl EVP_MD_CTRL_MICALG.
380 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
381 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
382 ctrl. It can then customise the structure before and/or after signing
386 *) New function OBJ_add_sigid() to allow application defined signature OIDs
387 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
388 to free up any added signature OIDs.
391 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
392 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
393 digest and cipher tables. New options added to openssl utility:
394 list-message-digest-algorithms and list-cipher-algorithms.
397 *) Change the array representation of binary polynomials: the list
398 of degrees of non-zero coefficients is now terminated with -1.
399 Previously it was terminated with 0, which was also part of the
400 value; thus, the array representation was not applicable to
401 polynomials where t^0 has coefficient zero. This change makes
402 the array representation useful in a more general context.
405 *) Various modifications and fixes to SSL/TLS cipher string
406 handling. For ECC, the code now distinguishes between fixed ECDH
407 with RSA certificates on the one hand and with ECDSA certificates
408 on the other hand, since these are separate ciphersuites. The
409 unused code for Fortezza ciphersuites has been removed.
411 For consistency with EDH, ephemeral ECDH is now called "EECDH"
412 (not "ECDHE"). For consistency with the code for DH
413 certificates, use of ECDH certificates is now considered ECDH
414 authentication, not RSA or ECDSA authentication (the latter is
415 merely the CA's signing algorithm and not actively used in the
418 The temporary ciphersuite alias "ECCdraft" is no longer
419 available, and ECC ciphersuites are no longer excluded from "ALL"
420 and "DEFAULT". The following aliases now exist for RFC 4492
421 ciphersuites, most of these by analogy with the DH case:
423 kECDHr - ECDH cert, signed with RSA
424 kECDHe - ECDH cert, signed with ECDSA
425 kECDH - ECDH cert (signed with either RSA or ECDSA)
426 kEECDH - ephemeral ECDH
427 ECDH - ECDH cert or ephemeral ECDH
433 AECDH - anonymous ECDH
434 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
438 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
439 Use correct micalg parameters depending on digest(s) in signed message.
442 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
443 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
446 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
447 an engine to register a method. Add ENGINE lookups for methods and
448 functional reference processing.
451 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
452 EVP_{Sign,Verify}* which allow an application to customise the signature
456 *) New -resign option to smime utility. This adds one or more signers
457 to an existing PKCS#7 signedData structure. Also -md option to use an
458 alternative message digest algorithm for signing.
461 *) Tidy up PKCS#7 routines and add new functions to make it easier to
462 create PKCS7 structures containing multiple signers. Update smime
463 application to support multiple signers.
466 *) New -macalg option to pkcs12 utility to allow setting of an alternative
470 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
471 Reorganize PBE internals to lookup from a static table using NIDs,
472 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
473 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
474 PRF which will be automatically used with PBES2.
477 *) Replace the algorithm specific calls to generate keys in "req" with the
481 *) Update PKCS#7 enveloped data routines to use new API. This is now
482 supported by any public key method supporting the encrypt operation. A
483 ctrl is added to allow the public key algorithm to examine or modify
484 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
488 *) Add a ctrl to asn1 method to allow a public key algorithm to express
489 a default digest type to use. In most cases this will be SHA1 but some
490 algorithms (such as GOST) need to specify an alternative digest. The
491 return value indicates how strong the prefernce is 1 means optional and
492 2 is mandatory (that is it is the only supported type). Modify
493 ASN1_item_sign() to accept a NULL digest argument to indicate it should
494 use the default md. Update openssl utilities to use the default digest
495 type for signing if it is not explicitly indicated.
498 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
499 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
500 signing method from the key type. This effectively removes the link
501 between digests and public key types.
504 *) Add an OID cross reference table and utility functions. Its purpose is to
505 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
506 rsaEncryption. This will allow some of the algorithm specific hackery
507 needed to use the correct OID to be removed.
510 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
511 structures for PKCS7_sign(). They are now set up by the relevant public
515 *) Add provisional EC pkey method with support for ECDSA and ECDH.
518 *) Add support for key derivation (agreement) in the API, DH method and
522 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
523 public and private key formats. As a side effect these add additional
524 command line functionality not previously available: DSA signatures can be
525 generated and verified using pkeyutl and DH key support and generation in
530 [Oliver Tappe <zooey@hirschkaefer.de>]
532 *) New make target "install_html_docs" installs HTML renditions of the
534 [Oliver Tappe <zooey@hirschkaefer.de>]
536 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
537 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
538 support key and parameter generation and add initial key generation
539 functionality for RSA.
542 *) Add functions for main EVP_PKEY_method operations. The undocumented
543 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
544 EVP_PKEY_{encrypt,decrypt}_old.
547 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
548 key API, doesn't do much yet.
551 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
552 public key algorithms. New option to openssl utility:
553 "list-public-key-algorithms" to print out info.
556 *) Implement the Supported Elliptic Curves Extension for
557 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
560 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
561 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
564 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
565 utilities such as rsa, dsa, dsaparam etc except they process any key
569 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
570 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
571 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
575 *) Initial support for pluggable public key ASN1.
576 De-spaghettify the public key ASN1 handling. Move public and private
577 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
578 algorithm specific handling to a single module within the relevant
579 algorithm directory. Add functions to allow (near) opaque processing
580 of public and private key structures.
583 *) Implement the Supported Point Formats Extension for
584 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
587 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
588 for the psk identity [hint] and the psk callback functions to the
589 SSL_SESSION, SSL and SSL_CTX structure.
592 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
596 SSL_CTX_use_psk_identity_hint
597 SSL_get_psk_identity_hint
599 SSL_use_psk_identity_hint
601 [Mika Kousa and Pasi Eronen of Nokia Corporation]
603 *) Add RFC 3161 compliant time stamp request creation, response generation
604 and response verification functionality.
605 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
607 *) Add initial support for TLS extensions, specifically for the server_name
608 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
609 have new members for a host name. The SSL data structure has an
610 additional member SSL_CTX *initial_ctx so that new sessions can be
611 stored in that context to allow for session resumption, even after the
612 SSL has been switched to a new SSL_CTX in reaction to a client's
613 server_name extension.
615 New functions (subject to change):
618 SSL_get_servername_type()
621 New CTRL codes and macros (subject to change):
623 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
624 - SSL_CTX_set_tlsext_servername_callback()
625 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
626 - SSL_CTX_set_tlsext_servername_arg()
627 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
629 openssl s_client has a new '-servername ...' option.
631 openssl s_server has new options '-servername_host ...', '-cert2 ...',
632 '-key2 ...', '-servername_fatal' (subject to change). This allows
633 testing the HostName extension for a specific single host name ('-cert'
634 and '-key' remain fallbacks for handshakes without HostName
635 negotiation). If the unrecogninzed_name alert has to be sent, this by
636 default is a warning; it becomes fatal with the '-servername_fatal'
639 [Peter Sylvester, Remy Allais, Christophe Renou]
641 *) Whirlpool hash implementation is added.
644 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
645 bn(64,32). Because of instruction set limitations it doesn't have
646 any negative impact on performance. This was done mostly in order
647 to make it possible to share assembler modules, such as bn_mul_mont
648 implementations, between 32- and 64-bit builds without hassle.
651 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
652 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
656 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
657 dedicated Montgomery multiplication procedure, is introduced.
658 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
659 "64-bit" performance on certain 32-bit targets.
662 *) New option SSL_OP_NO_COMP to disable use of compression selectively
663 in SSL structures. New SSL ctrl to set maximum send fragment size.
664 Save memory by seeting the I/O buffer sizes dynamically instead of
665 using the maximum available value.
668 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
669 in addition to the text details.
672 *) Very, very preliminary EXPERIMENTAL support for printing of general
673 ASN1 structures. This currently produces rather ugly output and doesn't
674 handle several customised structures at all.
677 *) Integrated support for PVK file format and some related formats such
678 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
679 these in the 'rsa' and 'dsa' utilities.
682 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
685 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
686 place for the (very old) "NETSCAPE" format certificates which are now
687 handled using new ASN1 code equivalents.
690 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
691 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
692 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
695 *) Modify CRL distribution points extension code to print out previously
696 unsupported fields. Enhance extension setting code to allow setting of
700 *) Add print and set support for Issuing Distribution Point CRL extension.
703 *) Change 'Configure' script to enable Camellia by default.
706 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
708 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
709 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
712 *) The fix in 0.9.8c that supposedly got rid of unsafe
713 double-checked locking was incomplete for RSA blinding,
714 addressing just one layer of what turns out to have been
715 doubly unsafe triple-checked locking.
717 So now fix this for real by retiring the MONT_HELPER macro
718 in crypto/rsa/rsa_eay.c.
720 [Bodo Moeller; problem pointed out by Marius Schilder]
722 *) Various precautionary measures:
724 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
726 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
727 (NB: This would require knowledge of the secret session ticket key
728 to exploit, in which case you'd be SOL either way.)
730 - Change bn_nist.c so that it will properly handle input BIGNUMs
731 outside the expected range.
733 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
736 [Neel Mehta, Bodo Moeller]
738 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
739 the load fails. Useful for distros.
740 [Ben Laurie and the FreeBSD team]
742 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
745 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
748 *) Expand ENGINE to support engine supplied SSL client certificate functions.
750 This work was sponsored by Logica.
753 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
754 keystores. Support for SSL/TLS client authentication too.
755 Not compiled unless enable-capieng specified to Configure.
757 This work was sponsored by Logica.
760 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
761 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
762 attribute creation routines such as certifcate requests and PKCS#12
766 Changes between 0.9.8g and 0.9.8h [28 May 2008]
768 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
769 handshake which could lead to a cilent crash as found using the
770 Codenomicon TLS test suite (CVE-2008-1672)
771 [Steve Henson, Mark Cox]
773 *) Fix double free in TLS server name extensions which could lead to
774 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
777 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
779 Clear the error queue to ensure that error entries left from
780 older function calls do not interfere with the correct operation.
781 [Lutz Jaenicke, Erik de Castro Lopo]
783 *) Remove root CA certificates of commercial CAs:
785 The OpenSSL project does not recommend any specific CA and does not
786 have any policy with respect to including or excluding any CA.
787 Therefore it does not make any sense to ship an arbitrary selection
788 of root CA certificates with the OpenSSL software.
791 *) RSA OAEP patches to fix two separate invalid memory reads.
792 The first one involves inputs when 'lzero' is greater than
793 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
794 before the beginning of from). The second one involves inputs where
795 the 'db' section contains nothing but zeroes (there is a one-byte
796 invalid read after the end of 'db').
797 [Ivan Nestlerode <inestlerode@us.ibm.com>]
799 *) Partial backport from 0.9.9-dev:
801 Introduce bn_mul_mont (dedicated Montgomery multiplication
802 procedure) as a candidate for BIGNUM assembler implementation.
803 While 0.9.9-dev uses assembler for various architectures, only
804 x86_64 is available by default here in the 0.9.8 branch, and
805 32-bit x86 is available through a compile-time setting.
807 To try the 32-bit x86 assembler implementation, use Configure
808 option "enable-montasm" (which exists only for this backport).
810 As "enable-montasm" for 32-bit x86 disclaims code stability
811 anyway, in this constellation we activate additional code
812 backported from 0.9.9-dev for further performance improvements,
813 namely BN_from_montgomery_word. (To enable this otherwise,
814 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
816 [Andy Polyakov (backport partially by Bodo Moeller)]
818 *) Add TLS session ticket callback. This allows an application to set
819 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
820 values. This is useful for key rollover for example where several key
821 sets may exist with different names.
824 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
825 This was broken until now in 0.9.8 releases, such that the only way
826 a registered ENGINE could be used (assuming it initialises
827 successfully on the host) was to explicitly set it as the default
828 for the relevant algorithms. This is in contradiction with 0.9.7
829 behaviour and the documentation. With this fix, when an ENGINE is
830 registered into a given algorithm's table of implementations, the
831 'uptodate' flag is reset so that auto-discovery will be used next
832 time a new context for that algorithm attempts to select an
834 [Ian Lister (tweaked by Geoff Thorpe)]
836 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
837 implemention in the following ways:
839 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
842 Lack of BER streaming support means one pass streaming processing is
843 only supported if data is detached: setting the streaming flag is
844 ignored for embedded content.
846 CMS support is disabled by default and must be explicitly enabled
847 with the enable-cms configuration option.
850 *) Update the GMP engine glue to do direct copies between BIGNUM and
851 mpz_t when openssl and GMP use the same limb size. Otherwise the
852 existing "conversion via a text string export" trick is still used.
853 [Paul Sheer <paulsheer@gmail.com>]
855 *) Zlib compression BIO. This is a filter BIO which compressed and
856 uncompresses any data passed through it.
859 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
860 RFC3394 compatible AES key wrapping.
863 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
864 sets string data without copying. X509_ALGOR_set0() and
865 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
866 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
867 from an X509_ATTRIBUTE structure optionally checking it occurs only
868 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
872 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
873 to get the expected BN_FLG_CONSTTIME behavior.
874 [Bodo Moeller (Google)]
878 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
879 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
880 - added some more tests to do_tests.pl
881 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
882 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
883 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
884 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
885 - various changes to netware.pl to enable gcc-cross builds on Win32
887 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
888 - various changes to fix missing prototype warnings
889 - fixed x86nasm.pl to create correct asm files for NASM COFF output
890 - added AES, WHIRLPOOL and CPUID assembler code to build files
891 - added missing AES assembler make rules to mk1mf.pl
892 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
893 [Guenter Knauf <eflash@gmx.net>]
895 *) Implement certificate status request TLS extension defined in RFC3546.
896 A client can set the appropriate parameters and receive the encoded
897 OCSP response via a callback. A server can query the supplied parameters
898 and set the encoded OCSP response in the callback. Add simplified examples
899 to s_client and s_server.
902 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
905 + Binary incompatibility of ssl_ctx_st structure
906 + DTLS interoperation with non-compliant servers
907 + Don't call get_session_cb() without proposed session
908 + Fix ia64 assembler code
909 [Andy Polyakov, Steve Henson]
911 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
913 *) DTLS Handshake overhaul. There were longstanding issues with
914 OpenSSL DTLS implementation, which were making it impossible for
915 RFC 4347 compliant client to communicate with OpenSSL server.
916 Unfortunately just fixing these incompatibilities would "cut off"
917 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
918 server keeps tolerating non RFC compliant syntax. The opposite is
919 not true, 0.9.8f client can not communicate with earlier server.
920 This update even addresses CVE-2007-4995.
923 *) Changes to avoid need for function casts in OpenSSL: some compilers
924 (gcc 4.2 and later) reject their use.
925 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
928 *) Add RFC4507 support to OpenSSL. This includes the corrections in
929 RFC4507bis. The encrypted ticket format is an encrypted encoded
930 SSL_SESSION structure, that way new session features are automatically
933 If a client application caches session in an SSL_SESSION structure
934 support is transparent because tickets are now stored in the encoded
937 The SSL_CTX structure automatically generates keys for ticket
938 protection in servers so again support should be possible
939 with no application modification.
941 If a client or server wishes to disable RFC4507 support then the option
942 SSL_OP_NO_TICKET can be set.
944 Add a TLS extension debugging callback to allow the contents of any client
945 or server extensions to be examined.
947 This work was sponsored by Google.
950 *) Add initial support for TLS extensions, specifically for the server_name
951 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
952 have new members for a host name. The SSL data structure has an
953 additional member SSL_CTX *initial_ctx so that new sessions can be
954 stored in that context to allow for session resumption, even after the
955 SSL has been switched to a new SSL_CTX in reaction to a client's
956 server_name extension.
958 New functions (subject to change):
961 SSL_get_servername_type()
964 New CTRL codes and macros (subject to change):
966 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
967 - SSL_CTX_set_tlsext_servername_callback()
968 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
969 - SSL_CTX_set_tlsext_servername_arg()
970 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
972 openssl s_client has a new '-servername ...' option.
974 openssl s_server has new options '-servername_host ...', '-cert2 ...',
975 '-key2 ...', '-servername_fatal' (subject to change). This allows
976 testing the HostName extension for a specific single host name ('-cert'
977 and '-key' remain fallbacks for handshakes without HostName
978 negotiation). If the unrecogninzed_name alert has to be sent, this by
979 default is a warning; it becomes fatal with the '-servername_fatal'
982 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
984 *) Add AES and SSE2 assembly language support to VC++ build.
987 *) Mitigate attack on final subtraction in Montgomery reduction.
990 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
991 (which previously caused an internal error).
994 *) Squeeze another 10% out of IGE mode when in != out.
997 *) AES IGE mode speedup.
998 [Dean Gaudet (Google)]
1000 *) Add the Korean symmetric 128-bit cipher SEED (see
1001 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1002 add SEED ciphersuites from RFC 4162:
1004 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1005 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1006 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1007 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1009 To minimize changes between patchlevels in the OpenSSL 0.9.8
1010 series, SEED remains excluded from compilation unless OpenSSL
1011 is configured with 'enable-seed'.
1012 [KISA, Bodo Moeller]
1014 *) Mitigate branch prediction attacks, which can be practical if a
1015 single processor is shared, allowing a spy process to extract
1016 information. For detailed background information, see
1017 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1018 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1019 and Necessary Software Countermeasures"). The core of the change
1020 are new versions BN_div_no_branch() and
1021 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1022 respectively, which are slower, but avoid the security-relevant
1023 conditional branches. These are automatically called by BN_div()
1024 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1025 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1026 remove a conditional branch.
1028 BN_FLG_CONSTTIME is the new name for the previous
1029 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1030 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1031 in the exponent causes BN_mod_exp_mont() to use the alternative
1032 implementation in BN_mod_exp_mont_consttime().) The old name
1033 remains as a deprecated alias.
1035 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1036 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1037 constant-time implementations for more than just exponentiation.
1038 Here too the old name is kept as a deprecated alias.
1040 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1041 the BN_BLINDING structure gets an independent copy of the
1042 modulus. This means that the previous "BIGNUM *m" argument to
1043 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1044 essentially becomes "const BIGNUM *m", although we can't actually
1045 change this in the header file before 0.9.9. It allows
1046 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1047 enable BN_FLG_CONSTTIME.
1049 [Matthew D Wood (Intel Corp)]
1051 *) In the SSL/TLS server implementation, be strict about session ID
1052 context matching (which matters if an application uses a single
1053 external cache for different purposes). Previously,
1054 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1055 set. This did ensure strict client verification, but meant that,
1056 with applications using a single external cache for quite
1057 different requirements, clients could circumvent ciphersuite
1058 restrictions for a given session ID context by starting a session
1059 in a different context.
1062 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1063 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1064 authentication-only ciphersuites.
1067 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1068 not complete and could lead to a possible single byte overflow
1069 (CVE-2007-5135) [Ben Laurie]
1071 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1073 *) Since AES128 and AES256 (and similarly Camellia128 and
1074 Camellia256) share a single mask bit in the logic of
1075 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1076 kludge to work properly if AES128 is available and AES256 isn't
1077 (or if Camellia128 is available and Camellia256 isn't).
1080 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1081 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1082 When a point or a seed is encoded in a BIT STRING, we need to
1083 prevent the removal of trailing zero bits to get the proper DER
1084 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1085 of a NamedBitList, for which trailing 0 bits need to be removed.)
1088 *) Have SSL/TLS server implementation tolerate "mismatched" record
1089 protocol version while receiving ClientHello even if the
1090 ClientHello is fragmented. (The server can't insist on the
1091 particular protocol version it has chosen before the ServerHello
1092 message has informed the client about his choice.)
1095 *) Add RFC 3779 support.
1096 [Rob Austein for ARIN, Ben Laurie]
1098 *) Load error codes if they are not already present instead of using a
1099 static variable. This allows them to be cleanly unloaded and reloaded.
1100 Improve header file function name parsing.
1103 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1104 or CAPABILITY handshake as required by RFCs.
1107 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1109 *) Introduce limits to prevent malicious keys being able to
1110 cause a denial of service. (CVE-2006-2940)
1111 [Steve Henson, Bodo Moeller]
1113 *) Fix ASN.1 parsing of certain invalid structures that can result
1114 in a denial of service. (CVE-2006-2937) [Steve Henson]
1116 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1117 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1119 *) Fix SSL client code which could crash if connecting to a
1120 malicious SSLv2 server. (CVE-2006-4343)
1121 [Tavis Ormandy and Will Drewry, Google Security Team]
1123 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1124 match only those. Before that, "AES256-SHA" would be interpreted
1125 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1126 the same strength classification in 0.9.7h) as we currently only
1127 have a single AES bit in the ciphersuite description bitmap.
1128 That change, however, also applied to ciphersuite strings such as
1129 "RC4-MD5" that intentionally matched multiple ciphersuites --
1130 namely, SSL 2.0 ciphersuites in addition to the more common ones
1131 from SSL 3.0/TLS 1.0.
1133 So we change the selection algorithm again: Naming an explicit
1134 ciphersuite selects this one ciphersuite, and any other similar
1135 ciphersuite (same bitmap) from *other* protocol versions.
1136 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1137 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1139 Since SSL 2.0 does not have any ciphersuites for which the
1140 128/256 bit distinction would be relevant, this works for now.
1141 The proper fix will be to use different bits for AES128 and
1142 AES256, which would have avoided the problems from the beginning;
1143 however, bits are scarce, so we can only do this in a new release
1144 (not just a patchlevel) when we can change the SSL_CIPHER
1145 definition to split the single 'unsigned long mask' bitmap into
1146 multiple values to extend the available space.
1150 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1152 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1153 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1155 *) Add AES IGE and biIGE modes.
1158 *) Change the Unix randomness entropy gathering to use poll() when
1159 possible instead of select(), since the latter has some
1160 undesirable limitations.
1161 [Darryl Miles via Richard Levitte and Bodo Moeller]
1163 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1164 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1165 cannot be implicitly activated as part of, e.g., the "AES" alias.
1166 However, please upgrade to OpenSSL 0.9.9[-dev] for
1167 non-experimental use of the ECC ciphersuites to get TLS extension
1168 support, which is required for curve and point format negotiation
1169 to avoid potential handshake problems.
1172 *) Disable rogue ciphersuites:
1174 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1175 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1176 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1178 The latter two were purportedly from
1179 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1182 Also deactivate the remaining ciphersuites from
1183 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1184 unofficial, and the ID has long expired.
1187 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1188 dual-core machines) and other potential thread-safety issues.
1191 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1192 versions), which is now available for royalty-free use
1193 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1194 Also, add Camellia TLS ciphersuites from RFC 4132.
1196 To minimize changes between patchlevels in the OpenSSL 0.9.8
1197 series, Camellia remains excluded from compilation unless OpenSSL
1198 is configured with 'enable-camellia'.
1201 *) Disable the padding bug check when compression is in use. The padding
1202 bug check assumes the first packet is of even length, this is not
1203 necessarily true if compresssion is enabled and can result in false
1204 positives causing handshake failure. The actual bug test is ancient
1205 code so it is hoped that implementations will either have fixed it by
1206 now or any which still have the bug do not support compression.
1209 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1211 *) When applying a cipher rule check to see if string match is an explicit
1212 cipher suite and only match that one cipher suite if it is.
1215 *) Link in manifests for VC++ if needed.
1216 [Austin Ziegler <halostatue@gmail.com>]
1218 *) Update support for ECC-based TLS ciphersuites according to
1219 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1220 TLS extensions, which are supported starting with the 0.9.9
1221 branch, not in the OpenSSL 0.9.8 branch).
1224 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1225 opaque EVP_CIPHER_CTX handling.
1228 *) Fixes and enhancements to zlib compression code. We now only use
1229 "zlib1.dll" and use the default __cdecl calling convention on Win32
1230 to conform with the standards mentioned here:
1231 http://www.zlib.net/DLL_FAQ.txt
1232 Static zlib linking now works on Windows and the new --with-zlib-include
1233 --with-zlib-lib options to Configure can be used to supply the location
1234 of the headers and library. Gracefully handle case where zlib library
1238 *) Several fixes and enhancements to the OID generation code. The old code
1239 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1240 handle numbers larger than ULONG_MAX, truncated printing and had a
1241 non standard OBJ_obj2txt() behaviour.
1244 *) Add support for building of engines under engine/ as shared libraries
1245 under VC++ build system.
1248 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1249 Hopefully, we will not see any false combination of paths any more.
1252 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1254 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1255 (part of SSL_OP_ALL). This option used to disable the
1256 countermeasure against man-in-the-middle protocol-version
1257 rollback in the SSL 2.0 server implementation, which is a bad
1258 idea. (CVE-2005-2969)
1260 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1261 for Information Security, National Institute of Advanced Industrial
1262 Science and Technology [AIST], Japan)]
1264 *) Add two function to clear and return the verify parameter flags.
1267 *) Keep cipherlists sorted in the source instead of sorting them at
1268 runtime, thus removing the need for a lock.
1271 *) Avoid some small subgroup attacks in Diffie-Hellman.
1272 [Nick Mathewson and Ben Laurie]
1274 *) Add functions for well-known primes.
1277 *) Extended Windows CE support.
1278 [Satoshi Nakamura and Andy Polyakov]
1280 *) Initialize SSL_METHOD structures at compile time instead of during
1281 runtime, thus removing the need for a lock.
1284 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1285 attempting to decrypt each encrypted key in turn. Add support to
1289 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1291 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1294 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1297 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1298 key into the same file any more.
1301 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1304 *) Add -utf8 command line and config file option to 'ca'.
1305 [Stefan <stf@udoma.org]
1307 *) Removed the macro des_crypt(), as it seems to conflict with some
1308 libraries. Use DES_crypt().
1311 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1312 involves renaming the source and generated shared-libs for
1313 both. The engines will accept the corrected or legacy ids
1314 ('ncipher' and '4758_cca' respectively) when binding. NB,
1315 this only applies when building 'shared'.
1316 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1318 *) Add attribute functions to EVP_PKEY structure. Modify
1319 PKCS12_create() to recognize a CSP name attribute and
1320 use it. Make -CSP option work again in pkcs12 utility.
1323 *) Add new functionality to the bn blinding code:
1324 - automatic re-creation of the BN_BLINDING parameters after
1325 a fixed number of uses (currently 32)
1326 - add new function for parameter creation
1327 - introduce flags to control the update behaviour of the
1328 BN_BLINDING parameters
1329 - hide BN_BLINDING structure
1330 Add a second BN_BLINDING slot to the RSA structure to improve
1331 performance when a single RSA object is shared among several
1335 *) Add support for DTLS.
1336 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1338 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1339 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1342 *) Remove buggy and incompletet DH cert support from
1343 ssl/ssl_rsa.c and ssl/s3_both.c
1346 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1347 the apps/openssl applications.
1350 *) Compile clean with "-Wall -Wmissing-prototypes
1351 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1352 DEBUG_SAFESTACK must also be set.
1355 *) Change ./Configure so that certain algorithms can be disabled by default.
1356 The new counterpiece to "no-xxx" is "enable-xxx".
1358 The patented RC5 and MDC2 algorithms will now be disabled unless
1359 "enable-rc5" and "enable-mdc2", respectively, are specified.
1361 (IDEA remains enabled despite being patented. This is because IDEA
1362 is frequently required for interoperability, and there is no license
1363 fee for non-commercial use. As before, "no-idea" can be used to
1364 avoid this algorithm.)
1368 *) Add processing of proxy certificates (see RFC 3820). This work was
1369 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1370 EGEE (Enabling Grids for E-science in Europe).
1373 *) RC4 performance overhaul on modern architectures/implementations, such
1374 as Intel P4, IA-64 and AMD64.
1377 *) New utility extract-section.pl. This can be used specify an alternative
1378 section number in a pod file instead of having to treat each file as
1379 a separate case in Makefile. This can be done by adding two lines to the
1382 =for comment openssl_section:XXX
1384 The blank line is mandatory.
1388 *) New arguments -certform, -keyform and -pass for s_client and s_server
1389 to allow alternative format key and certificate files and passphrase
1393 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1394 update associated structures and add various utility functions.
1396 Add new policy related verify parameters, include policy checking in
1397 standard verify code. Enhance 'smime' application with extra parameters
1398 to support policy checking and print out.
1401 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1402 Nehemiah processors. These extensions support AES encryption in hardware
1403 as well as RNG (though RNG support is currently disabled).
1404 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1406 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1409 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1410 [Andy Polyakov and a number of other people]
1412 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1413 implementation contributed by IBM.
1414 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1416 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1417 exponent rather than 'unsigned long'. There is a corresponding change to
1418 the new 'rsa_keygen' element of the RSA_METHOD structure.
1419 [Jelte Jansen, Geoff Thorpe]
1421 *) Functionality for creating the initial serial number file is now
1422 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1424 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1425 number file to 1, which is bound to cause problems. To avoid
1426 the problems while respecting compatibility between different 0.9.7
1427 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1428 CA.pl for serial number initialization. With the new release 0.9.8,
1429 we can fix the problem directly in the 'ca' utility.)
1432 *) Reduced header interdepencies by declaring more opaque objects in
1433 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1434 give fewer recursive includes, which could break lazy source code - so
1435 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1436 developers should define this symbol when building and using openssl to
1437 ensure they track the recommended behaviour, interfaces, [etc], but
1438 backwards-compatible behaviour prevails when this isn't defined.
1441 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1444 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1445 This will generate a random key of the appropriate length based on the
1446 cipher context. The EVP_CIPHER can provide its own random key generation
1447 routine to support keys of a specific form. This is used in the des and
1448 3des routines to generate a key of the correct parity. Update S/MIME
1449 code to use new functions and hence generate correct parity DES keys.
1450 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1451 valid (weak or incorrect parity).
1454 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1455 as looking them up. This is useful when the verified structure may contain
1456 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1457 present unless the new PKCS7_NO_CRL flag is asserted.
1460 *) Extend ASN1 oid configuration module. It now additionally accepts the
1463 shortName = some long name, 1.2.3.4
1466 *) Reimplemented the BN_CTX implementation. There is now no more static
1467 limitation on the number of variables it can handle nor the depth of the
1468 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1469 information can now expand as required, and rather than having a single
1470 static array of bignums, BN_CTX now uses a linked-list of such arrays
1471 allowing it to expand on demand whilst maintaining the usefulness of
1472 BN_CTX's "bundling".
1475 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1476 to allow all RSA operations to function using a single BN_CTX.
1479 *) Preliminary support for certificate policy evaluation and checking. This
1480 is initially intended to pass the tests outlined in "Conformance Testing
1481 of Relying Party Client Certificate Path Processing Logic" v1.07.
1484 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1485 remained unused and not that useful. A variety of other little bignum
1486 tweaks and fixes have also been made continuing on from the audit (see
1490 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1491 associated ASN1, EVP and SSL functions and old ASN1 macros.
1494 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1495 and this should never fail. So the return value from the use of
1496 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1497 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1500 *) BN_CTX_get() should return zero-valued bignums, providing the same
1501 initialised value as BN_new().
1502 [Geoff Thorpe, suggested by Ulf Möller]
1504 *) Support for inhibitAnyPolicy certificate extension.
1507 *) An audit of the BIGNUM code is underway, for which debugging code is
1508 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1509 is considered valid when processing BIGNUMs, and causes execution to
1510 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1511 further steps are taken to deliberately pollute unused data in BIGNUM
1512 structures to try and expose faulty code further on. For now, openssl will
1513 (in its default mode of operation) continue to tolerate the inconsistent
1514 forms that it has tolerated in the past, but authors and packagers should
1515 consider trying openssl and their own applications when compiled with
1516 these debugging symbols defined. It will help highlight potential bugs in
1517 their own code, and will improve the test coverage for OpenSSL itself. At
1518 some point, these tighter rules will become openssl's default to improve
1519 maintainability, though the assert()s and other overheads will remain only
1520 in debugging configurations. See bn.h for more details.
1521 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1523 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1524 that can only be obtained through BN_CTX_new() (which implicitly
1525 initialises it). The presence of this function only made it possible
1526 to overwrite an existing structure (and cause memory leaks).
1529 *) Because of the callback-based approach for implementing LHASH as a
1530 template type, lh_insert() adds opaque objects to hash-tables and
1531 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1532 to clean up those corresponding objects before destroying the hash table
1533 (and losing the object pointers). So some over-zealous constifications in
1534 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1535 objects as "const" and the lh_doall[_arg] callback wrappers are not
1536 prototyped to have "const" restrictions on the object pointers they are
1537 given (and so aren't required to cast them away any more).
1540 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1541 (speed) prefers to use its own implementation. The two implementations
1542 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1543 its object type properly exposed (MS_TM) instead of casting to/from "char
1544 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1545 aren't necessarily the greatest nomenclatures - but this is what was used
1546 internally to the implementation so I've used that for now.
1549 *) Ensure that deprecated functions do not get compiled when
1550 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1551 the self-tests were still using deprecated key-generation functions so
1552 these have been updated also.
1555 *) Reorganise PKCS#7 code to separate the digest location functionality
1556 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1557 New function PKCS7_set_digest() to set the digest type for PKCS#7
1558 digestedData type. Add additional code to correctly generate the
1559 digestedData type and add support for this type in PKCS7 initialization
1563 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1564 structure of type "other".
1567 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1568 sure the loop does correctly stop and breaking ("division by zero")
1569 modulus operations are not performed. The (pre-generated) prime
1570 table crypto/bn/bn_prime.h was already correct, but it could not be
1571 re-generated on some platforms because of the "division by zero"
1572 situation in the script.
1573 [Ralf S. Engelschall]
1575 *) Update support for ECC-based TLS ciphersuites according to
1576 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1577 SHA-1 now is only used for "small" curves (where the
1578 representation of a field element takes up to 24 bytes); for
1579 larger curves, the field element resulting from ECDH is directly
1580 used as premaster secret.
1581 [Douglas Stebila (Sun Microsystems Laboratories)]
1583 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1584 curve secp160r1 to the tests.
1585 [Douglas Stebila (Sun Microsystems Laboratories)]
1587 *) Add the possibility to load symbols globally with DSO.
1588 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1590 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1591 control of the error stack.
1594 *) Add support for STORE in ENGINE.
1597 *) Add the STORE type. The intention is to provide a common interface
1598 to certificate and key stores, be they simple file-based stores, or
1599 HSM-type store, or LDAP stores, or...
1600 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1603 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1604 pass a list of arguments to any function as well as provide a way
1605 for a function to pass data back to the caller.
1608 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1609 works like BUF_strdup() but can be used to duplicate a portion of
1610 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1614 *) Add the function sk_find_ex() which works like sk_find(), but will
1615 return an index to an element even if an exact match couldn't be
1616 found. The index is guaranteed to point at the element where the
1617 searched-for key would be inserted to preserve sorting order.
1620 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1621 takes an extra flags argument for optional functionality. Currently,
1622 the following flags are defined:
1624 OBJ_BSEARCH_VALUE_ON_NOMATCH
1625 This one gets OBJ_bsearch_ex() to return a pointer to the first
1626 element where the comparing function returns a negative or zero
1629 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1630 This one gets OBJ_bsearch_ex() to return a pointer to the first
1631 element where the comparing function returns zero. This is useful
1632 if there are more than one element where the comparing function
1636 *) Make it possible to create self-signed certificates with 'openssl ca'
1637 in such a way that the self-signed certificate becomes part of the
1638 CA database and uses the same mechanisms for serial number generation
1639 as all other certificate signing. The new flag '-selfsign' enables
1640 this functionality. Adapt CA.sh and CA.pl.in.
1643 *) Add functionality to check the public key of a certificate request
1644 against a given private. This is useful to check that a certificate
1645 request can be signed by that key (self-signing).
1648 *) Make it possible to have multiple active certificates with the same
1649 subject in the CA index file. This is done only if the keyword
1650 'unique_subject' is set to 'no' in the main CA section (default
1651 if 'CA_default') of the configuration file. The value is saved
1652 with the database itself in a separate index attribute file,
1653 named like the index file with '.attr' appended to the name.
1656 *) Generate muti valued AVAs using '+' notation in config files for
1660 *) Support for nameConstraints certificate extension.
1663 *) Support for policyConstraints certificate extension.
1666 *) Support for policyMappings certificate extension.
1669 *) Make sure the default DSA_METHOD implementation only uses its
1670 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1671 and change its own handlers to be NULL so as to remove unnecessary
1672 indirection. This lets alternative implementations fallback to the
1673 default implementation more easily.
1676 *) Support for directoryName in GeneralName related extensions
1680 *) Make it possible to link applications using Makefile.shared.
1681 Make that possible even when linking against static libraries!
1684 *) Support for single pass processing for S/MIME signing. This now
1685 means that S/MIME signing can be done from a pipe, in addition
1686 cleartext signing (multipart/signed type) is effectively streaming
1687 and the signed data does not need to be all held in memory.
1689 This is done with a new flag PKCS7_STREAM. When this flag is set
1690 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1691 is done after the data is output (and digests calculated) in
1692 SMIME_write_PKCS7().
1695 *) Add full support for -rpath/-R, both in shared libraries and
1696 applications, at least on the platforms where it's known how
1700 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1701 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1702 will now compute a table of multiples of the generator that
1703 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1704 faster (notably in the case of a single point multiplication,
1705 scalar * generator).
1706 [Nils Larsch, Bodo Moeller]
1708 *) IPv6 support for certificate extensions. The various extensions
1709 which use the IP:a.b.c.d can now take IPv6 addresses using the
1710 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1714 *) Added an ENGINE that implements RSA by performing private key
1715 exponentiations with the GMP library. The conversions to and from
1716 GMP's mpz_t format aren't optimised nor are any montgomery forms
1717 cached, and on x86 it appears OpenSSL's own performance has caught up.
1718 However there are likely to be other architectures where GMP could
1719 provide a boost. This ENGINE is not built in by default, but it can be
1720 specified at Configure time and should be accompanied by the necessary
1721 linker additions, eg;
1722 ./config -DOPENSSL_USE_GMP -lgmp
1725 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1726 testing availability of engines with "-t" - the old behaviour is
1727 produced by increasing the feature's verbosity with "-tt".
1730 *) ECDSA routines: under certain error conditions uninitialized BN objects
1731 could be freed. Solution: make sure initialization is performed early
1732 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1736 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1737 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1738 software implementations. For DSA and DH, parameter generation can
1739 also be overriden by providing the appropriate method callbacks.
1742 *) Change the "progress" mechanism used in key-generation and
1743 primality testing to functions that take a new BN_GENCB pointer in
1744 place of callback/argument pairs. The new API functions have "_ex"
1745 postfixes and the older functions are reimplemented as wrappers for
1746 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1747 declarations of the old functions to help (graceful) attempts to
1748 migrate to the new functions. Also, the new key-generation API
1749 functions operate on a caller-supplied key-structure and return
1750 success/failure rather than returning a key or NULL - this is to
1751 help make "keygen" another member function of RSA_METHOD etc.
1753 Example for using the new callback interface:
1755 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1759 BN_GENCB_set(&my_cb, my_callback, my_arg);
1761 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1762 /* For the meaning of a, b in calls to my_callback(), see the
1763 * documentation of the function that calls the callback.
1764 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1765 * my_callback should return 1 if it wants BN_is_prime_ex()
1766 * to continue, or 0 to stop.
1771 *) Change the ZLIB compression method to be stateful, and make it
1772 available to TLS with the number defined in
1773 draft-ietf-tls-compression-04.txt.
1776 *) Add the ASN.1 structures and functions for CertificatePair, which
1777 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1779 CertificatePair ::= SEQUENCE {
1780 forward [0] Certificate OPTIONAL,
1781 reverse [1] Certificate OPTIONAL,
1782 -- at least one of the pair shall be present -- }
1784 Also implement the PEM functions to read and write certificate
1785 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1787 This needed to be defined, mostly for the sake of the LDAP
1788 attribute crossCertificatePair, but may prove useful elsewhere as
1792 *) Make it possible to inhibit symlinking of shared libraries in
1793 Makefile.shared, for Cygwin's sake.
1796 *) Extend the BIGNUM API by creating a function
1797 void BN_set_negative(BIGNUM *a, int neg);
1798 and a macro that behave like
1799 int BN_is_negative(const BIGNUM *a);
1801 to avoid the need to access 'a->neg' directly in applications.
1804 *) Implement fast modular reduction for pseudo-Mersenne primes
1805 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1806 EC_GROUP_new_curve_GFp() will now automatically use this
1808 [Nils Larsch <nla@trustcenter.de>]
1810 *) Add new lock type (CRYPTO_LOCK_BN).
1813 *) Change the ENGINE framework to automatically load engines
1814 dynamically from specific directories unless they could be
1815 found to already be built in or loaded. Move all the
1816 current engines except for the cryptodev one to a new
1818 The engines in engines/ are built as shared libraries if
1819 the "shared" options was given to ./Configure or ./config.
1820 Otherwise, they are inserted in libcrypto.a.
1821 /usr/local/ssl/engines is the default directory for dynamic
1822 engines, but that can be overriden at configure time through
1823 the usual use of --prefix and/or --openssldir, and at run
1824 time with the environment variable OPENSSL_ENGINES.
1825 [Geoff Thorpe and Richard Levitte]
1827 *) Add Makefile.shared, a helper makefile to build shared
1828 libraries. Addapt Makefile.org.
1831 *) Add version info to Win32 DLLs.
1832 [Peter 'Luna' Runestig" <peter@runestig.com>]
1834 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1835 can be added using this API to created arbitrary PKCS#12
1836 files while avoiding the low level API.
1838 New options to PKCS12_create(), key or cert can be NULL and
1839 will then be omitted from the output file. The encryption
1840 algorithm NIDs can be set to -1 for no encryption, the mac
1841 iteration count can be set to 0 to omit the mac.
1843 Enhance pkcs12 utility by making the -nokeys and -nocerts
1844 options work when creating a PKCS#12 file. New option -nomac
1845 to omit the mac, NONE can be set for an encryption algorithm.
1846 New code is modified to use the enhanced PKCS12_create()
1847 instead of the low level API.
1850 *) Extend ASN1 encoder to support indefinite length constructed
1851 encoding. This can output sequences tags and octet strings in
1852 this form. Modify pk7_asn1.c to support indefinite length
1853 encoding. This is experimental and needs additional code to
1854 be useful, such as an ASN1 bio and some enhanced streaming
1857 Extend template encode functionality so that tagging is passed
1858 down to the template encoder.
1861 *) Let 'openssl req' fail if an argument to '-newkey' is not
1862 recognized instead of using RSA as a default.
1865 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1866 As these are not official, they are not included in "ALL";
1867 the "ECCdraft" ciphersuite group alias can be used to select them.
1868 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1870 *) Add ECDH engine support.
1871 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1873 *) Add ECDH in new directory crypto/ecdh/.
1874 [Douglas Stebila (Sun Microsystems Laboratories)]
1876 *) Let BN_rand_range() abort with an error after 100 iterations
1877 without success (which indicates a broken PRNG).
1880 *) Change BN_mod_sqrt() so that it verifies that the input value
1881 is really the square of the return value. (Previously,
1882 BN_mod_sqrt would show GIGO behaviour.)
1885 *) Add named elliptic curves over binary fields from X9.62, SECG,
1886 and WAP/WTLS; add OIDs that were still missing.
1888 [Sheueling Chang Shantz and Douglas Stebila
1889 (Sun Microsystems Laboratories)]
1891 *) Extend the EC library for elliptic curves over binary fields
1892 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1895 EC_GF2m_simple_method
1899 EC_GROUP_new_curve_GF2m
1900 EC_GROUP_set_curve_GF2m
1901 EC_GROUP_get_curve_GF2m
1902 EC_POINT_set_affine_coordinates_GF2m
1903 EC_POINT_get_affine_coordinates_GF2m
1904 EC_POINT_set_compressed_coordinates_GF2m
1906 Point compression for binary fields is disabled by default for
1907 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1910 As binary polynomials are represented as BIGNUMs, various members
1911 of the EC_GROUP and EC_POINT data structures can be shared
1912 between the implementations for prime fields and binary fields;
1913 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1914 are essentially identical to their ..._GFp counterparts.
1915 (For simplicity, the '..._GFp' prefix has been dropped from
1916 various internal method names.)
1918 An internal 'field_div' method (similar to 'field_mul' and
1919 'field_sqr') has been added; this is used only for binary fields.
1921 [Sheueling Chang Shantz and Douglas Stebila
1922 (Sun Microsystems Laboratories)]
1924 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1925 through methods ('mul', 'precompute_mult').
1927 The generic implementations (now internally called 'ec_wNAF_mul'
1928 and 'ec_wNAF_precomputed_mult') remain the default if these
1929 methods are undefined.
1931 [Sheueling Chang Shantz and Douglas Stebila
1932 (Sun Microsystems Laboratories)]
1934 *) New function EC_GROUP_get_degree, which is defined through
1935 EC_METHOD. For curves over prime fields, this returns the bit
1936 length of the modulus.
1938 [Sheueling Chang Shantz and Douglas Stebila
1939 (Sun Microsystems Laboratories)]
1941 *) New functions EC_GROUP_dup, EC_POINT_dup.
1942 (These simply call ..._new and ..._copy).
1944 [Sheueling Chang Shantz and Douglas Stebila
1945 (Sun Microsystems Laboratories)]
1947 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1948 Polynomials are represented as BIGNUMs (where the sign bit is not
1949 used) in the following functions [macros]:
1952 BN_GF2m_sub [= BN_GF2m_add]
1953 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1954 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1955 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1957 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1958 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1959 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1960 BN_GF2m_cmp [= BN_ucmp]
1962 (Note that only the 'mod' functions are actually for fields GF(2^m).
1963 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1965 For some functions, an the irreducible polynomial defining a
1966 field can be given as an 'unsigned int[]' with strictly
1967 decreasing elements giving the indices of those bits that are set;
1968 i.e., p[] represents the polynomial
1969 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1971 p[0] > p[1] > ... > p[k] = 0.
1972 This applies to the following functions:
1977 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1978 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1980 BN_GF2m_mod_sqrt_arr
1981 BN_GF2m_mod_solve_quad_arr
1985 Conversion can be performed by the following functions:
1990 bntest.c has additional tests for binary polynomial arithmetic.
1992 Two implementations for BN_GF2m_mod_div() are available.
1993 The default algorithm simply uses BN_GF2m_mod_inv() and
1994 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1995 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1996 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1998 [Sheueling Chang Shantz and Douglas Stebila
1999 (Sun Microsystems Laboratories)]
2001 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2002 functionality is disabled at compile-time.
2003 [Douglas Stebila <douglas.stebila@sun.com>]
2005 *) Change default behaviour of 'openssl asn1parse' so that more
2006 information is visible when viewing, e.g., a certificate:
2008 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2009 mode the content of non-printable OCTET STRINGs is output in a
2010 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2011 avoid the appearance of a printable string.
2012 [Nils Larsch <nla@trustcenter.de>]
2014 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2016 EC_GROUP_set_asn1_flag()
2017 EC_GROUP_get_asn1_flag()
2018 EC_GROUP_set_point_conversion_form()
2019 EC_GROUP_get_point_conversion_form()
2020 These control ASN1 encoding details:
2021 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2022 has been set to OPENSSL_EC_NAMED_CURVE.
2023 - Points are encoded in uncompressed form by default; options for
2024 asn1_for are as for point2oct, namely
2025 POINT_CONVERSION_COMPRESSED
2026 POINT_CONVERSION_UNCOMPRESSED
2027 POINT_CONVERSION_HYBRID
2029 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2032 EC_GROUP_get0_seed()
2033 EC_GROUP_get_seed_len()
2034 This is used only for ASN1 purposes (so far).
2035 [Nils Larsch <nla@trustcenter.de>]
2037 *) Add 'field_type' member to EC_METHOD, which holds the NID
2038 of the appropriate field type OID. The new function
2039 EC_METHOD_get_field_type() returns this value.
2040 [Nils Larsch <nla@trustcenter.de>]
2045 EC_POINT_point2hex()
2046 EC_POINT_hex2point()
2047 providing useful interfaces to EC_POINT_point2oct() and
2048 EC_POINT_oct2point().
2049 [Nils Larsch <nla@trustcenter.de>]
2051 *) Change internals of the EC library so that the functions
2052 EC_GROUP_set_generator()
2053 EC_GROUP_get_generator()
2054 EC_GROUP_get_order()
2055 EC_GROUP_get_cofactor()
2056 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2057 to methods, which would lead to unnecessary code duplication when
2058 adding different types of curves.
2059 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2061 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2062 arithmetic, and such that modified wNAFs are generated
2063 (which avoid length expansion in many cases).
2066 *) Add a function EC_GROUP_check_discriminant() (defined via
2067 EC_METHOD) that verifies that the curve discriminant is non-zero.
2069 Add a function EC_GROUP_check() that makes some sanity tests
2070 on a EC_GROUP, its generator and order. This includes
2071 EC_GROUP_check_discriminant().
2072 [Nils Larsch <nla@trustcenter.de>]
2074 *) Add ECDSA in new directory crypto/ecdsa/.
2076 Add applications 'openssl ecparam' and 'openssl ecdsa'
2077 (these are based on 'openssl dsaparam' and 'openssl dsa').
2079 ECDSA support is also included in various other files across the
2080 library. Most notably,
2081 - 'openssl req' now has a '-newkey ecdsa:file' option;
2082 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2083 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2084 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2085 them suitable for ECDSA where domain parameters must be
2086 extracted before the specific public key;
2087 - ECDSA engine support has been added.
2088 [Nils Larsch <nla@trustcenter.de>]
2090 *) Include some named elliptic curves, and add OIDs from X9.62,
2091 SECG, and WAP/WTLS. Each curve can be obtained from the new
2093 EC_GROUP_new_by_curve_name(),
2094 and the list of available named curves can be obtained with
2095 EC_get_builtin_curves().
2096 Also add a 'curve_name' member to EC_GROUP objects, which can be
2098 EC_GROUP_set_curve_name()
2099 EC_GROUP_get_curve_name()
2100 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2102 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2103 was actually never needed) and in BN_mul(). The removal in BN_mul()
2104 required a small change in bn_mul_part_recursive() and the addition
2105 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2106 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2107 bn_sub_words() and bn_add_words() except they take arrays with
2111 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2113 *) In the SSL/TLS server implementation, be strict about session ID
2114 context matching (which matters if an application uses a single
2115 external cache for different purposes). Previously,
2116 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2117 set. This did ensure strict client verification, but meant that,
2118 with applications using a single external cache for quite
2119 different requirements, clients could circumvent ciphersuite
2120 restrictions for a given session ID context by starting a session
2121 in a different context.
2124 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2126 *) Cleanse PEM buffers before freeing them since they may contain
2128 [Benjamin Bennett <ben@psc.edu>]
2130 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2131 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2132 authentication-only ciphersuites.
2135 *) Since AES128 and AES256 share a single mask bit in the logic of
2136 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2137 kludge to work properly if AES128 is available and AES256 isn't.
2140 *) Expand security boundary to match 1.1.1 module.
2143 *) Remove redundant features: hash file source, editing of test vectors
2144 modify fipsld to use external fips_premain.c signature.
2147 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2148 run algorithm test programs.
2151 *) Make algorithm test programs more tolerant of whitespace.
2154 *) Have SSL/TLS server implementation tolerate "mismatched" record
2155 protocol version while receiving ClientHello even if the
2156 ClientHello is fragmented. (The server can't insist on the
2157 particular protocol version it has chosen before the ServerHello
2158 message has informed the client about his choice.)
2161 *) Load error codes if they are not already present instead of using a
2162 static variable. This allows them to be cleanly unloaded and reloaded.
2165 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2167 *) Introduce limits to prevent malicious keys being able to
2168 cause a denial of service. (CVE-2006-2940)
2169 [Steve Henson, Bodo Moeller]
2171 *) Fix ASN.1 parsing of certain invalid structures that can result
2172 in a denial of service. (CVE-2006-2937) [Steve Henson]
2174 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2175 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2177 *) Fix SSL client code which could crash if connecting to a
2178 malicious SSLv2 server. (CVE-2006-4343)
2179 [Tavis Ormandy and Will Drewry, Google Security Team]
2181 *) Change ciphersuite string processing so that an explicit
2182 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2183 will no longer include "AES128-SHA"), and any other similar
2184 ciphersuite (same bitmap) from *other* protocol versions (so that
2185 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2186 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2187 changes from 0.9.8b and 0.9.8d.
2190 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2192 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2193 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2195 *) Change the Unix randomness entropy gathering to use poll() when
2196 possible instead of select(), since the latter has some
2197 undesirable limitations.
2198 [Darryl Miles via Richard Levitte and Bodo Moeller]
2200 *) Disable rogue ciphersuites:
2202 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2203 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2204 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2206 The latter two were purportedly from
2207 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2210 Also deactive the remaining ciphersuites from
2211 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2212 unofficial, and the ID has long expired.
2215 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2216 dual-core machines) and other potential thread-safety issues.
2219 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2221 *) Adapt fipsld and the build system to link against the validated FIPS
2222 module in FIPS mode.
2225 *) Fixes for VC++ 2005 build under Windows.
2228 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2229 from a Windows bash shell such as MSYS. It is autodetected from the
2230 "config" script when run from a VC++ environment. Modify standard VC++
2231 build to use fipscanister.o from the GNU make build.
2234 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2236 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2237 The value now differs depending on if you build for FIPS or not.
2238 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2239 safely run with a non-FIPSed libcrypto, as it may crash because of
2240 the difference induced by this change.
2243 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2245 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2246 (part of SSL_OP_ALL). This option used to disable the
2247 countermeasure against man-in-the-middle protocol-version
2248 rollback in the SSL 2.0 server implementation, which is a bad
2249 idea. (CVE-2005-2969)
2251 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2252 for Information Security, National Institute of Advanced Industrial
2253 Science and Technology [AIST], Japan)]
2255 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2256 mainly for FIPS compliance and not fully integrated at this stage.
2259 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2260 the exponentiation using a fixed-length exponent. (Otherwise,
2261 the information leaked through timing could expose the secret key
2262 after many signatures; cf. Bleichenbacher's attack on DSA with
2266 *) Make a new fixed-window mod_exp implementation the default for
2267 RSA, DSA, and DH private-key operations so that the sequence of
2268 squares and multiplies and the memory access pattern are
2269 independent of the particular secret key. This will mitigate
2270 cache-timing and potential related attacks.
2272 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2273 and this is automatically used by BN_mod_exp_mont() if the new flag
2274 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2275 will use this BN flag for private exponents unless the flag
2276 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2277 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2279 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2281 *) Change the client implementation for SSLv23_method() and
2282 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2283 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2284 (Previously, the SSL 2.0 backwards compatible Client Hello
2285 message format would be used even with SSL_OP_NO_SSLv2.)
2288 *) Add support for smime-type MIME parameter in S/MIME messages which some
2292 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2293 a threadsafe manner. Modify rsa code to use new function and add calls
2294 to dsa and dh code (which had race conditions before).
2297 *) Include the fixed error library code in the C error file definitions
2298 instead of fixing them up at runtime. This keeps the error code
2299 structures constant.
2302 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2304 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2307 *) Fixes for newer kerberos headers. NB: the casts are needed because
2308 the 'length' field is signed on one version and unsigned on another
2309 with no (?) obvious way to tell the difference, without these VC++
2310 complains. Also the "definition" of FAR (blank) is no longer included
2311 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2312 some needed definitions.
2315 *) Undo Cygwin change.
2318 *) Added support for proxy certificates according to RFC 3820.
2319 Because they may be a security thread to unaware applications,
2320 they must be explicitely allowed in run-time. See
2321 docs/HOWTO/proxy_certificates.txt for further information.
2324 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2326 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2327 server and client random values. Previously
2328 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2329 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2331 This change has negligible security impact because:
2333 1. Server and client random values still have 24 bytes of pseudo random
2336 2. Server and client random values are sent in the clear in the initial
2339 3. The master secret is derived using the premaster secret (48 bytes in
2340 size for static RSA ciphersuites) as well as client server and random
2343 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2346 [Stephen Henson, reported by UK NISCC]
2348 *) Use Windows randomness collection on Cygwin.
2351 *) Fix hang in EGD/PRNGD query when communication socket is closed
2352 prematurely by EGD/PRNGD.
2353 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2355 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2358 *) Back-port of selected performance improvements from development
2359 branch, as well as improved support for PowerPC platforms.
2362 *) Add lots of checks for memory allocation failure, error codes to indicate
2363 failure and freeing up memory if a failure occurs.
2364 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2366 *) Add new -passin argument to dgst.
2369 *) Perform some character comparisons of different types in X509_NAME_cmp:
2370 this is needed for some certificates that reencode DNs into UTF8Strings
2371 (in violation of RFC3280) and can't or wont issue name rollover
2375 *) Make an explicit check during certificate validation to see that
2376 the CA setting in each certificate on the chain is correct. As a
2377 side effect always do the following basic checks on extensions,
2378 not just when there's an associated purpose to the check:
2380 - if there is an unhandled critical extension (unless the user
2381 has chosen to ignore this fault)
2382 - if the path length has been exceeded (if one is set at all)
2383 - that certain extensions fit the associated purpose (if one has
2387 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2389 *) Avoid a race condition when CRLs are checked in a multi threaded
2390 environment. This would happen due to the reordering of the revoked
2391 entries during signature checking and serial number lookup. Now the
2392 encoding is cached and the serial number sort performed under a lock.
2393 Add new STACK function sk_is_sorted().
2396 *) Add Delta CRL to the extension code.
2399 *) Various fixes to s3_pkt.c so alerts are sent properly.
2400 [David Holmes <d.holmes@f5.com>]
2402 *) Reduce the chances of duplicate issuer name and serial numbers (in
2403 violation of RFC3280) using the OpenSSL certificate creation utilities.
2404 This is done by creating a random 64 bit value for the initial serial
2405 number when a serial number file is created or when a self signed
2406 certificate is created using 'openssl req -x509'. The initial serial
2407 number file is created using 'openssl x509 -next_serial' in CA.pl
2408 rather than being initialized to 1.
2411 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2413 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2414 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2415 [Joe Orton, Steve Henson]
2417 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2419 [Joe Orton, Steve Henson]
2421 *) Make it possible to have multiple active certificates with the same
2422 subject in the CA index file. This is done only if the keyword
2423 'unique_subject' is set to 'no' in the main CA section (default
2424 if 'CA_default') of the configuration file. The value is saved
2425 with the database itself in a separate index attribute file,
2426 named like the index file with '.attr' appended to the name.
2429 *) X509 verify fixes. Disable broken certificate workarounds when
2430 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2431 keyUsage extension present. Don't accept CRLs with unhandled critical
2432 extensions: since verify currently doesn't process CRL extensions this
2433 rejects a CRL with *any* critical extensions. Add new verify error codes
2437 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2438 A clarification of RFC2560 will require the use of OCTET STRINGs and
2439 some implementations cannot handle the current raw format. Since OpenSSL
2440 copies and compares OCSP nonces as opaque blobs without any attempt at
2441 parsing them this should not create any compatibility issues.
2444 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2445 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2446 this HMAC (and other) operations are several times slower than OpenSSL
2450 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2451 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2453 *) Use the correct content when signing type "other".
2456 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2458 *) Fix various bugs revealed by running the NISCC test suite:
2460 Stop out of bounds reads in the ASN1 code when presented with
2461 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2463 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2465 If verify callback ignores invalid public key errors don't try to check
2466 certificate signature with the NULL public key.
2470 *) New -ignore_err option in ocsp application to stop the server
2471 exiting on the first error in a request.
2474 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2475 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2479 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2480 extra data after the compression methods not only for TLS 1.0
2481 but also for SSL 3.0 (as required by the specification).
2482 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2484 *) Change X509_certificate_type() to mark the key as exported/exportable
2485 when it's 512 *bits* long, not 512 bytes.
2488 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2489 blocks during encryption.
2492 *) Various fixes to base64 BIO and non blocking I/O. On write
2493 flushes were not handled properly if the BIO retried. On read
2494 data was not being buffered properly and had various logic bugs.
2495 This also affects blocking I/O when the data being decoded is a
2499 *) Various S/MIME bugfixes and compatibility changes:
2500 output correct application/pkcs7 MIME type if
2501 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2502 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2503 of files as .eml work). Correctly handle very long lines in MIME
2507 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2509 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2510 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2511 a protocol version number mismatch like a decryption error
2512 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2515 *) Turn on RSA blinding by default in the default implementation
2516 to avoid a timing attack. Applications that don't want it can call
2517 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2518 They would be ill-advised to do so in most cases.
2519 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2521 *) Change RSA blinding code so that it works when the PRNG is not
2522 seeded (in this case, the secret RSA exponent is abused as
2523 an unpredictable seed -- if it is not unpredictable, there
2524 is no point in blinding anyway). Make RSA blinding thread-safe
2525 by remembering the creator's thread ID in rsa->blinding and
2526 having all other threads use local one-time blinding factors
2527 (this requires more computation than sharing rsa->blinding, but
2528 avoids excessive locking; and if an RSA object is not shared
2529 between threads, blinding will still be very fast).
2532 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2533 ENGINE as defaults for all supported algorithms irrespective of
2534 the 'flags' parameter. 'flags' is now honoured, so applications
2535 should make sure they are passing it correctly.
2538 *) Target "mingw" now allows native Windows code to be generated in
2539 the Cygwin environment as well as with the MinGW compiler.
2542 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2544 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2545 via timing by performing a MAC computation even if incorrrect
2546 block cipher padding has been found. This is a countermeasure
2547 against active attacks where the attacker has to distinguish
2548 between bad padding and a MAC verification error. (CVE-2003-0078)
2550 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2551 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2552 Martin Vuagnoux (EPFL, Ilion)]
2554 *) Make the no-err option work as intended. The intention with no-err
2555 is not to have the whole error stack handling routines removed from
2556 libcrypto, it's only intended to remove all the function name and
2557 reason texts, thereby removing some of the footprint that may not
2558 be interesting if those errors aren't displayed anyway.
2560 NOTE: it's still possible for any application or module to have it's
2561 own set of error texts inserted. The routines are there, just not
2562 used by default when no-err is given.
2565 *) Add support for FreeBSD on IA64.
2566 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2568 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2569 Kerberos function mit_des_cbc_cksum(). Before this change,
2570 the value returned by DES_cbc_cksum() was like the one from
2571 mit_des_cbc_cksum(), except the bytes were swapped.
2572 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2574 *) Allow an application to disable the automatic SSL chain building.
2575 Before this a rather primitive chain build was always performed in
2576 ssl3_output_cert_chain(): an application had no way to send the
2577 correct chain if the automatic operation produced an incorrect result.
2579 Now the chain builder is disabled if either:
2581 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2583 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2585 The reasoning behind this is that an application would not want the
2586 auto chain building to take place if extra chain certificates are
2587 present and it might also want a means of sending no additional
2588 certificates (for example the chain has two certificates and the
2592 *) Add the possibility to build without the ENGINE framework.
2593 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2595 *) Under Win32 gmtime() can return NULL: check return value in
2596 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2599 *) DSA routines: under certain error conditions uninitialized BN objects
2600 could be freed. Solution: make sure initialization is performed early
2601 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2602 Nils Larsch <nla@trustcenter.de> via PR#459)
2605 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2606 checked on reconnect on the client side, therefore session resumption
2607 could still fail with a "ssl session id is different" error. This
2608 behaviour is masked when SSL_OP_ALL is used due to
2609 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2610 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2611 followup to PR #377.
2614 *) IA-32 assembler support enhancements: unified ELF targets, support
2615 for SCO/Caldera platforms, fix for Cygwin shared build.
2618 *) Add support for FreeBSD on sparc64. As a consequence, support for
2619 FreeBSD on non-x86 processors is separate from x86 processors on
2620 the config script, much like the NetBSD support.
2621 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2623 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2625 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2628 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2629 code (06) was taken as the first octet of the session ID and the last
2630 octet was ignored consequently. As a result SSLv2 client side session
2631 caching could not have worked due to the session ID mismatch between
2633 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2637 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2638 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2642 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2643 seems that in spite of existing for more than a year, many application
2644 author have done nothing to provide the necessary callbacks, which
2645 means that this particular engine will not work properly anywhere.
2646 This is a very unfortunate situation which forces us, in the name
2647 of usability, to give the hw_ncipher.c a static lock, which is part
2649 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2650 appear in 0.9.8 or later. We EXPECT application authors to have
2651 dealt properly with this when 0.9.8 is released (unless we actually
2652 make such changes in the libcrypto locking code that changes will
2653 have to be made anyway).
2656 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2657 octets have been read, EOF or an error occurs. Without this change
2658 some truncated ASN1 structures will not produce an error.
2661 *) Disable Heimdal support, since it hasn't been fully implemented.
2662 Still give the possibility to force the use of Heimdal, but with
2663 warnings and a request that patches get sent to openssl-dev.
2666 *) Add the VC-CE target, introduce the WINCE sysname, and add
2667 INSTALL.WCE and appropriate conditionals to make it build.
2668 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2670 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2671 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2672 edit numbers of the version.
2673 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2675 *) Introduce safe string copy and catenation functions
2676 (BUF_strlcpy() and BUF_strlcat()).
2677 [Ben Laurie (CHATS) and Richard Levitte]
2679 *) Avoid using fixed-size buffers for one-line DNs.
2680 [Ben Laurie (CHATS)]
2682 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2683 resizing buffers containing secrets, and use where appropriate.
2684 [Ben Laurie (CHATS)]
2686 *) Avoid using fixed size buffers for configuration file location.
2687 [Ben Laurie (CHATS)]
2689 *) Avoid filename truncation for various CA files.
2690 [Ben Laurie (CHATS)]
2692 *) Use sizeof in preference to magic numbers.
2693 [Ben Laurie (CHATS)]
2695 *) Avoid filename truncation in cert requests.
2696 [Ben Laurie (CHATS)]
2698 *) Add assertions to check for (supposedly impossible) buffer
2700 [Ben Laurie (CHATS)]
2702 *) Don't cache truncated DNS entries in the local cache (this could
2703 potentially lead to a spoofing attack).
2704 [Ben Laurie (CHATS)]
2706 *) Fix various buffers to be large enough for hex/decimal
2707 representations in a platform independent manner.
2708 [Ben Laurie (CHATS)]
2710 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2711 resizing buffers containing secrets, and use where appropriate.
2712 [Ben Laurie (CHATS)]
2714 *) Add BIO_indent() to avoid much slightly worrying code to do
2716 [Ben Laurie (CHATS)]
2718 *) Convert sprintf()/BIO_puts() to BIO_printf().
2719 [Ben Laurie (CHATS)]
2721 *) buffer_gets() could terminate with the buffer only half
2723 [Ben Laurie (CHATS)]
2725 *) Add assertions to prevent user-supplied crypto functions from
2726 overflowing internal buffers by having large block sizes, etc.
2727 [Ben Laurie (CHATS)]
2729 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2731 [Ben Laurie (CHATS)]
2733 *) Eliminate unused copy of key in RC4.
2734 [Ben Laurie (CHATS)]
2736 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2737 [Ben Laurie (CHATS)]
2739 *) Fix off-by-one error in EGD path.
2740 [Ben Laurie (CHATS)]
2742 *) If RANDFILE path is too long, ignore instead of truncating.
2743 [Ben Laurie (CHATS)]
2745 *) Eliminate unused and incorrectly sized X.509 structure
2747 [Ben Laurie (CHATS)]
2749 *) Eliminate unused and dangerous function knumber().
2750 [Ben Laurie (CHATS)]
2752 *) Eliminate unused and dangerous structure, KSSL_ERR.
2753 [Ben Laurie (CHATS)]
2755 *) Protect against overlong session ID context length in an encoded
2756 session object. Since these are local, this does not appear to be
2758 [Ben Laurie (CHATS)]
2760 *) Change from security patch (see 0.9.6e below) that did not affect
2761 the 0.9.6 release series:
2763 Remote buffer overflow in SSL3 protocol - an attacker could
2764 supply an oversized master key in Kerberos-enabled versions.
2766 [Ben Laurie (CHATS)]
2768 *) Change the SSL kerb5 codes to match RFC 2712.
2771 *) Make -nameopt work fully for req and add -reqopt switch.
2772 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2774 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2775 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2777 *) Make sure tests can be performed even if the corresponding algorithms
2778 have been removed entirely. This was also the last step to make
2779 OpenSSL compilable with DJGPP under all reasonable conditions.
2780 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2782 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2783 to allow version independent disabling of normally unselected ciphers,
2784 which may be activated as a side-effect of selecting a single cipher.
2786 (E.g., cipher list string "RSA" enables ciphersuites that are left
2787 out of "ALL" because they do not provide symmetric encryption.
2788 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2789 [Lutz Jaenicke, Bodo Moeller]
2791 *) Add appropriate support for separate platform-dependent build
2792 directories. The recommended way to make a platform-dependent
2793 build directory is the following (tested on Linux), maybe with
2796 # Place yourself outside of the OpenSSL source tree. In
2797 # this example, the environment variable OPENSSL_SOURCE
2798 # is assumed to contain the absolute OpenSSL source directory.
2799 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2800 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2801 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2802 mkdir -p `dirname $F`
2803 ln -s $OPENSSL_SOURCE/$F $F
2806 To be absolutely sure not to disturb the source tree, a "make clean"
2807 is a good thing. If it isn't successfull, don't worry about it,
2808 it probably means the source directory is very clean.
2811 *) Make sure any ENGINE control commands make local copies of string
2812 pointers passed to them whenever necessary. Otherwise it is possible
2813 the caller may have overwritten (or deallocated) the original string
2814 data when a later ENGINE operation tries to use the stored values.
2815 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2817 *) Improve diagnostics in file reading and command-line digests.
2818 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2820 *) Add AES modes CFB and OFB to the object database. Correct an
2821 error in AES-CFB decryption.
2824 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2825 allows existing EVP_CIPHER_CTX structures to be reused after
2826 calling EVP_*Final(). This behaviour is used by encryption
2827 BIOs and some applications. This has the side effect that
2828 applications must explicitly clean up cipher contexts with
2829 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2832 *) Check the values of dna and dnb in bn_mul_recursive before calling
2833 bn_mul_comba (a non zero value means the a or b arrays do not contain
2834 n2 elements) and fallback to bn_mul_normal if either is not zero.
2837 *) Fix escaping of non-ASCII characters when using the -subj option
2838 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2841 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2842 form for "surname", serialNumber has no short form.
2843 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2844 therefore remove "mail" short name for "internet 7".
2845 The OID for unique identifiers in X509 certificates is
2846 x500UniqueIdentifier, not uniqueIdentifier.
2847 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2850 *) Add an "init" command to the ENGINE config module and auto initialize
2851 ENGINEs. Without any "init" command the ENGINE will be initialized
2852 after all ctrl commands have been executed on it. If init=1 the
2853 ENGINE is initailized at that point (ctrls before that point are run
2854 on the uninitialized ENGINE and after on the initialized one). If
2855 init=0 then the ENGINE will not be iniatialized at all.
2858 *) Fix the 'app_verify_callback' interface so that the user-defined
2859 argument is actually passed to the callback: In the
2860 SSL_CTX_set_cert_verify_callback() prototype, the callback
2861 declaration has been changed from
2864 int (*cb)(X509_STORE_CTX *,void *);
2865 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2866 i=s->ctx->app_verify_callback(&ctx)
2867 has been changed into
2868 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2870 To update applications using SSL_CTX_set_cert_verify_callback(),
2871 a dummy argument can be added to their callback functions.
2872 [D. K. Smetters <smetters@parc.xerox.com>]
2874 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2875 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2877 *) Add and OPENSSL_LOAD_CONF define which will cause
2878 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2879 This allows older applications to transparently support certain
2880 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2881 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2882 load the config file and OPENSSL_add_all_algorithms_conf() which will
2883 always load it have also been added.
2886 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2887 Adjust NIDs and EVP layer.
2888 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2890 *) Config modules support in openssl utility.
2892 Most commands now load modules from the config file,
2893 though in a few (such as version) this isn't done
2894 because it couldn't be used for anything.
2896 In the case of ca and req the config file used is
2897 the same as the utility itself: that is the -config
2898 command line option can be used to specify an
2902 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2903 use "openssl_conf" if filename is NULL use default openssl config file.
2906 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2907 config section name. Add a new flag to tolerate a missing config file
2908 and move code to CONF_modules_load_file().
2911 *) Support for crypto accelerator cards from Accelerated Encryption
2912 Processing, www.aep.ie. (Use engine 'aep')
2913 The support was copied from 0.9.6c [engine] and adapted/corrected
2914 to work with the new engine framework.
2915 [AEP Inc. and Richard Levitte]
2917 *) Support for SureWare crypto accelerator cards from Baltimore
2918 Technologies. (Use engine 'sureware')
2919 The support was copied from 0.9.6c [engine] and adapted
2920 to work with the new engine framework.
2923 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2924 make the newer ENGINE framework commands for the CHIL engine work.
2925 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2927 *) Make it possible to produce shared libraries on ReliantUNIX.
2928 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2930 *) Add the configuration target debug-linux-ppro.
2931 Make 'openssl rsa' use the general key loading routines
2932 implemented in apps.c, and make those routines able to
2933 handle the key format FORMAT_NETSCAPE and the variant
2935 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2937 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2938 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2940 *) Add -keyform to rsautl, and document -engine.
2941 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2943 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2944 BIO_R_NO_SUCH_FILE error code rather than the generic
2945 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2948 *) Add new functions
2950 ERR_peek_last_error_line
2951 ERR_peek_last_error_line_data.
2952 These are similar to
2955 ERR_peek_error_line_data,
2956 but report on the latest error recorded rather than the first one
2957 still in the error queue.
2958 [Ben Laurie, Bodo Moeller]
2960 *) default_algorithms option in ENGINE config module. This allows things
2962 default_algorithms = ALL
2963 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2966 *) Prelminary ENGINE config module.
2969 *) New experimental application configuration code.
2972 *) Change the AES code to follow the same name structure as all other
2973 symmetric ciphers, and behave the same way. Move everything to
2974 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2975 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2977 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2978 [Ben Laurie and Theo de Raadt]
2980 *) Add option to output public keys in req command.
2981 [Massimiliano Pala madwolf@openca.org]
2983 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2984 (up to about 10% better than before for P-192 and P-224).
2987 *) New functions/macros
2989 SSL_CTX_set_msg_callback(ctx, cb)
2990 SSL_CTX_set_msg_callback_arg(ctx, arg)
2991 SSL_set_msg_callback(ssl, cb)
2992 SSL_set_msg_callback_arg(ssl, arg)
2994 to request calling a callback function
2996 void cb(int write_p, int version, int content_type,
2997 const void *buf, size_t len, SSL *ssl, void *arg)
2999 whenever a protocol message has been completely received
3000 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3001 protocol version according to which the SSL library interprets
3002 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3003 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3004 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3005 specification (change_cipher_spec(20), alert(21), handshake(22)).
3006 'buf' and 'len' point to the actual message, 'ssl' to the
3007 SSL object, and 'arg' is the application-defined value set by
3008 SSL[_CTX]_set_msg_callback_arg().
3010 'openssl s_client' and 'openssl s_server' have new '-msg' options
3011 to enable a callback that displays all protocol messages.
3014 *) Change the shared library support so shared libraries are built as
3015 soon as the corresponding static library is finished, and thereby get
3016 openssl and the test programs linked against the shared library.
3017 This still only happens when the keyword "shard" has been given to
3018 the configuration scripts.
3020 NOTE: shared library support is still an experimental thing, and
3021 backward binary compatibility is still not guaranteed.
3022 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3024 *) Add support for Subject Information Access extension.
3025 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3027 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3028 additional bytes when new memory had to be allocated, not just
3029 when reusing an existing buffer.
3032 *) New command line and configuration option 'utf8' for the req command.
3033 This allows field values to be specified as UTF8 strings.
3036 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3037 runs for the former and machine-readable output for the latter.
3040 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3041 of the e-mail address in the DN (i.e., it will go into a certificate
3042 extension only). The new configuration file option 'email_in_dn = no'
3043 has the same effect.
3044 [Massimiliano Pala madwolf@openca.org]
3046 *) Change all functions with names starting with des_ to be starting
3047 with DES_ instead. Add wrappers that are compatible with libdes,
3048 but are named _ossl_old_des_*. Finally, add macros that map the
3049 des_* symbols to the corresponding _ossl_old_des_* if libdes
3050 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3051 desired, the des_* symbols will be mapped to DES_*, with one
3054 Since we provide two compatibility mappings, the user needs to
3055 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3056 compatibility is desired. The default (i.e., when that macro
3057 isn't defined) is OpenSSL 0.9.6c compatibility.
3059 There are also macros that enable and disable the support of old
3060 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3061 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3062 are defined, the default will apply: to support the old des routines.
3064 In either case, one must include openssl/des.h to get the correct
3065 definitions. Do not try to just include openssl/des_old.h, that
3068 NOTE: This is a major break of an old API into a new one. Software
3069 authors are encouraged to switch to the DES_ style functions. Some
3070 time in the future, des_old.h and the libdes compatibility functions
3071 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3072 default), and then completely removed.
3075 *) Test for certificates which contain unsupported critical extensions.
3076 If such a certificate is found during a verify operation it is
3077 rejected by default: this behaviour can be overridden by either
3078 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3079 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3080 X509_supported_extension() has also been added which returns 1 if a
3081 particular extension is supported.
3084 *) Modify the behaviour of EVP cipher functions in similar way to digests
3085 to retain compatibility with existing code.
3088 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3089 compatibility with existing code. In particular the 'ctx' parameter does
3090 not have to be to be initialized before the call to EVP_DigestInit() and
3091 it is tidied up after a call to EVP_DigestFinal(). New function
3092 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3093 EVP_MD_CTX_copy() changed to not require the destination to be
3094 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3095 requires the destination to be valid.
3097 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3098 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3101 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3102 so that complete 'Handshake' protocol structures are kept in memory
3103 instead of overwriting 'msg_type' and 'length' with 'body' data.
3106 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3107 [Massimo Santin via Richard Levitte]
3109 *) Major restructuring to the underlying ENGINE code. This includes
3110 reduction of linker bloat, separation of pure "ENGINE" manipulation
3111 (initialisation, etc) from functionality dealing with implementations
3112 of specific crypto iterfaces. This change also introduces integrated
3113 support for symmetric ciphers and digest implementations - so ENGINEs
3114 can now accelerate these by providing EVP_CIPHER and EVP_MD
3115 implementations of their own. This is detailed in crypto/engine/README
3116 as it couldn't be adequately described here. However, there are a few
3117 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3118 were changed in the original introduction of ENGINE code have now
3119 reverted back - the hooking from this code to ENGINE is now a good
3120 deal more passive and at run-time, operations deal directly with
3121 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3122 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3123 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3124 they were not being used by the framework as there is no concept of a
3125 BIGNUM_METHOD and they could not be generalised to the new
3126 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3127 ENGINE_cpy() has been removed as it cannot be consistently defined in
3131 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3134 *) Change mkdef.pl to sort symbols that get the same entry number,
3135 and make sure the automatically generated functions ERR_load_*
3136 become part of libeay.num as well.
3139 *) New function SSL_renegotiate_pending(). This returns true once
3140 renegotiation has been requested (either SSL_renegotiate() call
3141 or HelloRequest/ClientHello receveived from the peer) and becomes
3142 false once a handshake has been completed.
3143 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3144 sends a HelloRequest, but does not ensure that a handshake takes
3145 place. SSL_renegotiate_pending() is useful for checking if the
3146 client has followed the request.)
3149 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3150 By default, clients may request session resumption even during
3151 renegotiation (if session ID contexts permit); with this option,
3152 session resumption is possible only in the first handshake.
3154 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3155 more bits available for options that should not be part of
3156 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3159 *) Add some demos for certificate and certificate request creation.
3162 *) Make maximum certificate chain size accepted from the peer application
3163 settable (SSL*_get/set_max_cert_list()), as proposed by
3164 "Douglas E. Engert" <deengert@anl.gov>.
3167 *) Add support for shared libraries for Unixware-7
3168 (Boyd Lynn Gerber <gerberb@zenez.com>).
3171 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3172 be done prior to destruction. Use this to unload error strings from
3173 ENGINEs that load their own error strings. NB: This adds two new API
3174 functions to "get" and "set" this destroy handler in an ENGINE.
3177 *) Alter all existing ENGINE implementations (except "openssl" and
3178 "openbsd") to dynamically instantiate their own error strings. This
3179 makes them more flexible to be built both as statically-linked ENGINEs
3180 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3181 Also, add stub code to each that makes building them as self-contained
3182 shared-libraries easier (see README.ENGINE).
3185 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3186 implementations into applications that are completely implemented in
3187 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3188 commands that can be used to configure what shared-library to load and
3189 to control aspects of the way it is handled. Also, made an update to
3190 the README.ENGINE file that brings its information up-to-date and
3191 provides some information and instructions on the "dynamic" ENGINE
3192 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3195 *) Make it possible to unload ranges of ERR strings with a new
3196 "ERR_unload_strings" function.
3199 *) Add a copy() function to EVP_MD.
3202 *) Make EVP_MD routines take a context pointer instead of just the
3203 md_data void pointer.
3206 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3207 that the digest can only process a single chunk of data
3208 (typically because it is provided by a piece of
3209 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3210 is only going to provide a single chunk of data, and hence the
3211 framework needn't accumulate the data for oneshot drivers.
3214 *) As with "ERR", make it possible to replace the underlying "ex_data"
3215 functions. This change also alters the storage and management of global
3216 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3217 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3218 index counters. The API functions that use this state have been changed
3219 to take a "class_index" rather than pointers to the class's local STACK
3220 and counter, and there is now an API function to dynamically create new
3221 classes. This centralisation allows us to (a) plug a lot of the
3222 thread-safety problems that existed, and (b) makes it possible to clean
3223 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3224 such data would previously have always leaked in application code and
3225 workarounds were in place to make the memory debugging turn a blind eye
3226 to it. Application code that doesn't use this new function will still
3227 leak as before, but their memory debugging output will announce it now
3228 rather than letting it slide.
3230 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3231 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3232 has a return value to indicate success or failure.
3235 *) Make it possible to replace the underlying "ERR" functions such that the
3236 global state (2 LHASH tables and 2 locks) is only used by the "default"
3237 implementation. This change also adds two functions to "get" and "set"
3238 the implementation prior to it being automatically set the first time
3239 any other ERR function takes place. Ie. an application can call "get",
3240 pass the return value to a module it has just loaded, and that module
3241 can call its own "set" function using that value. This means the
3242 module's "ERR" operations will use (and modify) the error state in the
3243 application and not in its own statically linked copy of OpenSSL code.
3246 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3247 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3248 the operation, and provides a more encapsulated way for external code
3249 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3250 to use these functions rather than manually incrementing the counts.
3252 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3255 *) Add EVP test program.
3258 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3261 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3262 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3263 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3264 These allow a CRL to be built without having to access X509_CRL fields
3265 directly. Modify 'ca' application to use new functions.
3268 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3269 bug workarounds. Rollback attack detection is a security feature.
3270 The problem will only arise on OpenSSL servers when TLSv1 is not
3271 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3272 Software authors not wanting to support TLSv1 will have special reasons
3273 for their choice and can explicitly enable this option.
3274 [Bodo Moeller, Lutz Jaenicke]
3276 *) Rationalise EVP so it can be extended: don't include a union of
3277 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3278 (similar to those existing for EVP_CIPHER_CTX).
3283 EVP_MD_CTX_init(&md); /* new function call */
3284 EVP_DigestInit(&md, EVP_sha1());
3285 EVP_DigestUpdate(&md, in, len);
3286 EVP_DigestFinal(&md, out, NULL);
3287 EVP_MD_CTX_cleanup(&md); /* new function call */
3291 *) Make DES key schedule conform to the usual scheme, as well as
3292 correcting its structure. This means that calls to DES functions
3293 now have to pass a pointer to a des_key_schedule instead of a
3294 plain des_key_schedule (which was actually always a pointer
3297 des_key_schedule ks;
3299 des_set_key_checked(..., &ks);
3300 des_ncbc_encrypt(..., &ks, ...);
3302 (Note that a later change renames 'des_...' into 'DES_...'.)
3305 *) Initial reduction of linker bloat: the use of some functions, such as
3306 PEM causes large amounts of unused functions to be linked in due to
3307 poor organisation. For example pem_all.c contains every PEM function
3308 which has a knock on effect of linking in large amounts of (unused)
3309 ASN1 code. Grouping together similar functions and splitting unrelated
3310 functions prevents this.
3313 *) Cleanup of EVP macros.
3316 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3317 correct _ecb suffix.
3320 *) Add initial OCSP responder support to ocsp application. The
3321 revocation information is handled using the text based index
3322 use by the ca application. The responder can either handle
3323 requests generated internally, supplied in files (for example
3324 via a CGI script) or using an internal minimal server.
3327 *) Add configuration choices to get zlib compression for TLS.
3330 *) Changes to Kerberos SSL for RFC 2712 compliance:
3331 1. Implemented real KerberosWrapper, instead of just using
3332 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3333 2. Implemented optional authenticator field of KerberosWrapper.
3335 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3336 and authenticator structs; see crypto/krb5/.
3338 Generalized Kerberos calls to support multiple Kerberos libraries.
3339 [Vern Staats <staatsvr@asc.hpc.mil>,
3340 Jeffrey Altman <jaltman@columbia.edu>
3341 via Richard Levitte]
3343 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3344 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3345 values for each of the key sizes rather than having just
3346 parameters (and 'speed' generating keys each time).
3349 *) Speed up EVP routines.
3352 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3353 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3354 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3355 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3357 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3358 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3359 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3362 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3364 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3367 *) Added the OS2-EMX target.
3368 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3370 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3371 to support NCONF routines in extension code. New function CONF_set_nconf()
3372 to allow functions which take an NCONF to also handle the old LHASH
3373 structure: this means that the old CONF compatible routines can be
3374 retained (in particular wrt extensions) without having to duplicate the
3375 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3378 *) Enhance the general user interface with mechanisms for inner control
3379 and with possibilities to have yes/no kind of prompts.
3382 *) Change all calls to low level digest routines in the library and
3383 applications to use EVP. Add missing calls to HMAC_cleanup() and
3384 don't assume HMAC_CTX can be copied using memcpy().
3385 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3387 *) Add the possibility to control engines through control names but with
3388 arbitrary arguments instead of just a string.
3389 Change the key loaders to take a UI_METHOD instead of a callback
3390 function pointer. NOTE: this breaks binary compatibility with earlier
3391 versions of OpenSSL [engine].
3392 Adapt the nCipher code for these new conditions and add a card insertion
3396 *) Enhance the general user interface with mechanisms to better support
3397 dialog box interfaces, application-defined prompts, the possibility
3398 to use defaults (for example default passwords from somewhere else)
3399 and interrupts/cancellations.
3402 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3403 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3406 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3407 tidy up some unnecessarily weird code in 'sk_new()').
3408 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3410 *) Change the key loading routines for ENGINEs to use the same kind
3411 callback (pem_password_cb) as all other routines that need this
3415 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3416 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3417 than this minimum value is recommended.
3420 *) New random seeder for OpenVMS, using the system process statistics
3421 that are easily reachable.
3424 *) Windows apparently can't transparently handle global
3425 variables defined in DLLs. Initialisations such as:
3427 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3429 wont compile. This is used by the any applications that need to
3430 declare their own ASN1 modules. This was fixed by adding the option
3431 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3432 needed for static libraries under Win32.
3435 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3436 setting of purpose and trust fields. New X509_STORE trust and
3437 purpose functions and tidy up setting in other SSL functions.
3440 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3441 structure. These are inherited by X509_STORE_CTX when it is
3442 initialised. This allows various defaults to be set in the
3443 X509_STORE structure (such as flags for CRL checking and custom
3444 purpose or trust settings) for functions which only use X509_STORE_CTX
3445 internally such as S/MIME.
3447 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3448 trust settings if they are not set in X509_STORE. This allows X509_STORE
3449 purposes and trust (in S/MIME for example) to override any set by default.
3451 Add command line options for CRL checking to smime, s_client and s_server
3455 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3456 are set then the CRL is looked up in the X509_STORE structure and
3457 its validity and signature checked, then if the certificate is found
3458 in the CRL the verify fails with a revoked error.
3460 Various new CRL related callbacks added to X509_STORE_CTX structure.
3462 Command line options added to 'verify' application to support this.
3464 This needs some additional work, such as being able to handle multiple
3465 CRLs with different times, extension based lookup (rather than just
3466 by subject name) and ultimately more complete V2 CRL extension
3470 *) Add a general user interface API (crypto/ui/). This is designed
3471 to replace things like des_read_password and friends (backward
3472 compatibility functions using this new API are provided).
3473 The purpose is to remove prompting functions from the DES code
3474 section as well as provide for prompting through dialog boxes in
3475 a window system and the like.
3478 *) Add "ex_data" support to ENGINE so implementations can add state at a
3479 per-structure level rather than having to store it globally.
3482 *) Make it possible for ENGINE structures to be copied when retrieved by
3483 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3484 This causes the "original" ENGINE structure to act like a template,
3485 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3486 operational state can be localised to each ENGINE structure, despite the
3487 fact they all share the same "methods". New ENGINE structures returned in
3488 this case have no functional references and the return value is the single
3489 structural reference. This matches the single structural reference returned
3490 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3494 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3495 needs to match any other type at all we need to manually clear the
3499 *) Changes to the "openssl engine" utility to include;
3500 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3501 about an ENGINE's available control commands.
3502 - executing control commands from command line arguments using the
3503 '-pre' and '-post' switches. '-post' is only used if '-t' is
3504 specified and the ENGINE is successfully initialised. The syntax for
3505 the individual commands are colon-separated, for example;
3506 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3509 *) New dynamic control command support for ENGINEs. ENGINEs can now
3510 declare their own commands (numbers), names (strings), descriptions,
3511 and input types for run-time discovery by calling applications. A
3512 subset of these commands are implicitly classed as "executable"
3513 depending on their input type, and only these can be invoked through
3514 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3515 can be based on user input, config files, etc). The distinction is
3516 that "executable" commands cannot return anything other than a boolean
3517 result and can only support numeric or string input, whereas some
3518 discoverable commands may only be for direct use through
3519 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3520 pointers, or other custom uses. The "executable" commands are to
3521 support parameterisations of ENGINE behaviour that can be
3522 unambiguously defined by ENGINEs and used consistently across any
3523 OpenSSL-based application. Commands have been added to all the
3524 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3525 control over shared-library paths without source code alterations.
3528 *) Changed all ENGINE implementations to dynamically allocate their
3529 ENGINEs rather than declaring them statically. Apart from this being
3530 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3531 this also allows the implementations to compile without using the
3532 internal engine_int.h header.
3535 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3536 'const' value. Any code that should be able to modify a RAND_METHOD
3537 should already have non-const pointers to it (ie. they should only
3538 modify their own ones).
3541 *) Made a variety of little tweaks to the ENGINE code.
3542 - "atalla" and "ubsec" string definitions were moved from header files
3543 to C code. "nuron" string definitions were placed in variables
3544 rather than hard-coded - allowing parameterisation of these values
3545 later on via ctrl() commands.
3546 - Removed unused "#if 0"'d code.
3547 - Fixed engine list iteration code so it uses ENGINE_free() to release
3548 structural references.
3549 - Constified the RAND_METHOD element of ENGINE structures.
3550 - Constified various get/set functions as appropriate and added
3551 missing functions (including a catch-all ENGINE_cpy that duplicates
3552 all ENGINE values onto a new ENGINE except reference counts/state).
3553 - Removed NULL parameter checks in get/set functions. Setting a method
3554 or function to NULL is a way of cancelling out a previously set
3555 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3556 and doesn't justify the extra error symbols and code.
3557 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3558 flags from engine_int.h to engine.h.
3559 - Changed prototypes for ENGINE handler functions (init(), finish(),
3560 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3563 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3564 to the algorithm using long division. The binary algorithm can be
3565 used only if the modulus is odd. On 32-bit systems, it is faster
3566 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3567 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3568 up to 450 bits. In 64-bit environments, the binary algorithm
3569 appears to be advantageous for much longer moduli; here we use it
3570 for moduli up to 2048 bits.
3573 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3574 could not support the combine flag in choice fields.
3577 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3578 extensions from a certificate request to the certificate.
3581 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3582 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3583 file: this allows the display of the certificate about to be
3584 signed to be customised, to allow certain fields to be included
3585 or excluded and extension details. The old system didn't display
3586 multicharacter strings properly, omitted fields not in the policy
3587 and couldn't display additional details such as extensions.
3590 *) Function EC_POINTs_mul for multiple scalar multiplication
3591 of an arbitrary number of elliptic curve points
3592 \sum scalars[i]*points[i],
3593 optionally including the generator defined for the EC_GROUP:
3594 scalar*generator + \sum scalars[i]*points[i].
3596 EC_POINT_mul is a simple wrapper function for the typical case
3597 that the point list has just one item (besides the optional
3601 *) First EC_METHODs for curves over GF(p):
3603 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3604 operations and provides various method functions that can also
3605 operate with faster implementations of modular arithmetic.
3607 EC_GFp_mont_method() reuses most functions that are part of
3608 EC_GFp_simple_method, but uses Montgomery arithmetic.
3610 [Bodo Moeller; point addition and point doubling
3611 implementation directly derived from source code provided by
3612 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3614 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3615 crypto/ec/ec_lib.c):
3617 Curves are EC_GROUP objects (with an optional group generator)
3618 based on EC_METHODs that are built into the library.
3620 Points are EC_POINT objects based on EC_GROUP objects.
3622 Most of the framework would be able to handle curves over arbitrary
3623 finite fields, but as there are no obvious types for fields other
3624 than GF(p), some functions are limited to that for now.
3627 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3628 that the file contains a complete HTTP response.
3631 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3632 change the def and num file printf format specifier from "%-40sXXX"
3633 to "%-39s XXX". The latter will always guarantee a space after the
3634 field while the former will cause them to run together if the field
3635 is 40 of more characters long.
3638 *) Constify the cipher and digest 'method' functions and structures
3639 and modify related functions to take constant EVP_MD and EVP_CIPHER
3643 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3644 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3647 *) Modify EVP_Digest*() routines so they now return values. Although the
3648 internal software routines can never fail additional hardware versions
3652 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3654 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3655 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3658 ERR_R_NESTED_ASN1_ERROR
3660 ERR_R_MISSING_ASN1_EOS
3661 were 4 .. 9, conflicting with
3662 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3664 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3665 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3667 Add new error code 'ERR_R_INTERNAL_ERROR'.
3670 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3674 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3675 sets the subject name for a new request or supersedes the
3676 subject name in a given request. Formats that can be parsed are
3677 'CN=Some Name, OU=myOU, C=IT'
3679 'CN=Some Name/OU=myOU/C=IT'.
3681 Add options '-batch' and '-verbose' to 'openssl req'.
3682 [Massimiliano Pala <madwolf@hackmasters.net>]
3684 *) Introduce the possibility to access global variables through
3685 functions on platform were that's the best way to handle exporting
3686 global variables in shared libraries. To enable this functionality,
3687 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3688 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3689 is normally done by Configure or something similar).
3691 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3692 in the source file (foo.c) like this:
3694 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3695 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3697 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3698 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3700 OPENSSL_DECLARE_GLOBAL(int,foo);
3701 #define foo OPENSSL_GLOBAL_REF(foo)
3702 OPENSSL_DECLARE_GLOBAL(double,bar);
3703 #define bar OPENSSL_GLOBAL_REF(bar)
3705 The #defines are very important, and therefore so is including the
3706 header file everywhere where the defined globals are used.
3708 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3709 of ASN.1 items, but that structure is a bit different.
3711 The largest change is in util/mkdef.pl which has been enhanced with
3712 better and easier to understand logic to choose which symbols should
3713 go into the Windows .def files as well as a number of fixes and code
3714 cleanup (among others, algorithm keywords are now sorted
3715 lexicographically to avoid constant rewrites).
3718 *) In BN_div() keep a copy of the sign of 'num' before writing the
3719 result to 'rm' because if rm==num the value will be overwritten
3720 and produce the wrong result if 'num' is negative: this caused
3721 problems with BN_mod() and BN_nnmod().
3724 *) Function OCSP_request_verify(). This checks the signature on an
3725 OCSP request and verifies the signer certificate. The signer
3726 certificate is just checked for a generic purpose and OCSP request
3730 *) Add OCSP_check_validity() function to check the validity of OCSP
3731 responses. OCSP responses are prepared in real time and may only
3732 be a few seconds old. Simply checking that the current time lies
3733 between thisUpdate and nextUpdate max reject otherwise valid responses
3734 caused by either OCSP responder or client clock inaccuracy. Instead
3735 we allow thisUpdate and nextUpdate to fall within a certain period of
3736 the current time. The age of the response can also optionally be
3737 checked. Two new options -validity_period and -status_age added to
3741 *) If signature or public key algorithm is unrecognized print out its
3742 OID rather that just UNKNOWN.
3745 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3746 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3747 ID to be generated from the issuer certificate alone which can then be
3748 passed to OCSP_id_issuer_cmp().
3751 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3752 ASN1 modules to export functions returning ASN1_ITEM pointers
3753 instead of the ASN1_ITEM structures themselves. This adds several
3754 new macros which allow the underlying ASN1 function/structure to
3755 be accessed transparently. As a result code should not use ASN1_ITEM
3756 references directly (such as &X509_it) but instead use the relevant
3757 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3758 use of the new ASN1 code on platforms where exporting structures
3759 is problematical (for example in shared libraries) but exporting
3760 functions returning pointers to structures is not.
3763 *) Add support for overriding the generation of SSL/TLS session IDs.
3764 These callbacks can be registered either in an SSL_CTX or per SSL.
3765 The purpose of this is to allow applications to control, if they wish,
3766 the arbitrary values chosen for use as session IDs, particularly as it
3767 can be useful for session caching in multiple-server environments. A
3768 command-line switch for testing this (and any client code that wishes
3769 to use such a feature) has been added to "s_server".
3770 [Geoff Thorpe, Lutz Jaenicke]
3772 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3773 of the form '#if defined(...) || defined(...) || ...' and
3774 '#if !defined(...) && !defined(...) && ...'. This also avoids
3775 the growing number of special cases it was previously handling.
3778 *) Make all configuration macros available for application by making
3779 sure they are available in opensslconf.h, by giving them names starting
3780 with "OPENSSL_" to avoid conflicts with other packages and by making
3781 sure e_os2.h will cover all platform-specific cases together with
3783 Additionally, it is now possible to define configuration/platform-
3784 specific names (called "system identities"). In the C code, these
3785 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3786 macro with the name beginning with "OPENSSL_SYS_", which is determined
3787 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3791 *) New option -set_serial to 'req' and 'x509' this allows the serial
3792 number to use to be specified on the command line. Previously self
3793 signed certificates were hard coded with serial number 0 and the
3794 CA options of 'x509' had to use a serial number in a file which was
3798 *) New options to 'ca' utility to support V2 CRL entry extensions.
3799 Currently CRL reason, invalidity date and hold instruction are
3800 supported. Add new CRL extensions to V3 code and some new objects.
3803 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3804 disable standard block padding (aka PKCS#5 padding) in the EVP
3805 API, which was previously mandatory. This means that the data is
3806 not padded in any way and so the total length much be a multiple
3807 of the block size, otherwise an error occurs.
3810 *) Initial (incomplete) OCSP SSL support.
3813 *) New function OCSP_parse_url(). This splits up a URL into its host,
3814 port and path components: primarily to parse OCSP URLs. New -url
3815 option to ocsp utility.
3818 *) New nonce behavior. The return value of OCSP_check_nonce() now
3819 reflects the various checks performed. Applications can decide
3820 whether to tolerate certain situations such as an absent nonce
3821 in a response when one was present in a request: the ocsp application
3822 just prints out a warning. New function OCSP_add1_basic_nonce()
3823 this is to allow responders to include a nonce in a response even if
3824 the request is nonce-less.
3827 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3828 skipped when using openssl x509 multiple times on a single input file,
3829 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3832 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3833 set string type: to handle setting ASN1_TIME structures. Fix ca
3834 utility to correctly initialize revocation date of CRLs.
3837 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3838 the clients preferred ciphersuites and rather use its own preferences.
3839 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3840 Internet Explorer by ensuring unchanged hash method during stepup.
3841 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3844 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3845 to aes and add a new 'exist' option to print out symbols that don't
3849 *) Additional options to ocsp utility to allow flags to be set and
3850 additional certificates supplied.
3853 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3854 OCSP client a number of certificate to only verify the response
3858 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3859 handle the new API. Currently only ECB, CBC modes supported. Add new
3862 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3863 Encryption Standard (AES) Ciphersuites for Transport Layer
3864 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3865 not enabled by default and were not part of the "ALL" ciphersuite
3866 alias because they were not yet official; they could be
3867 explicitly requested by specifying the "AESdraft" ciphersuite
3868 group alias. In the final release of OpenSSL 0.9.7, the group
3869 alias is called "AES" and is part of "ALL".)
3870 [Ben Laurie, Steve Henson, Bodo Moeller]
3872 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3873 request to response.
3876 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3877 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3878 extract information from a certificate request. OCSP_response_create()
3879 creates a response and optionally adds a basic response structure.
3880 OCSP_basic_add1_status() adds a complete single response to a basic
3881 response and returns the OCSP_SINGLERESP structure just added (to allow
3882 extensions to be included for example). OCSP_basic_add1_cert() adds a
3883 certificate to a basic response and OCSP_basic_sign() signs a basic
3884 response with various flags. New helper functions ASN1_TIME_check()
3885 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3886 (converts ASN1_TIME to GeneralizedTime).
3889 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3890 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3891 structure from a certificate. X509_pubkey_digest() digests the public_key
3892 contents: this is used in various key identifiers.
3895 *) Make sk_sort() tolerate a NULL argument.
3896 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3898 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3899 passed by the function are trusted implicitly. If any of them signed the
3900 response then it is assumed to be valid and is not verified.
3903 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3904 to data. This was previously part of the PKCS7 ASN1 code. This
3905 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3906 [Steve Henson, reported by Kenneth R. Robinette
3907 <support@securenetterm.com>]
3909 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3910 routines: without these tracing memory leaks is very painful.
3911 Fix leaks in PKCS12 and PKCS7 routines.
3914 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3915 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3916 effectively meant GeneralizedTime would never be used. Now it
3917 is initialised to -1 but X509_time_adj() now has to check the value
3918 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3919 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3920 [Steve Henson, reported by Kenneth R. Robinette
3921 <support@securenetterm.com>]
3923 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3924 result in a zero length in the ASN1_INTEGER structure which was
3925 not consistent with the structure when d2i_ASN1_INTEGER() was used
3926 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3927 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3928 where it did not print out a minus for negative ASN1_INTEGER.
3931 *) Add summary printout to ocsp utility. The various functions which
3932 convert status values to strings have been renamed to:
3933 OCSP_response_status_str(), OCSP_cert_status_str() and
3934 OCSP_crl_reason_str() and are no longer static. New options
3935 to verify nonce values and to disable verification. OCSP response
3936 printout format cleaned up.
3939 *) Add additional OCSP certificate checks. These are those specified
3940 in RFC2560. This consists of two separate checks: the CA of the
3941 certificate being checked must either be the OCSP signer certificate
3942 or the issuer of the OCSP signer certificate. In the latter case the
3943 OCSP signer certificate must contain the OCSP signing extended key
3944 usage. This check is performed by attempting to match the OCSP
3945 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3946 in the OCSP_CERTID structures of the response.
3949 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3950 and related routines. This uses the standard OpenSSL certificate
3951 verify routines to perform initial checks (just CA validity) and
3952 to obtain the certificate chain. Then additional checks will be
3953 performed on the chain. Currently the root CA is checked to see
3954 if it is explicitly trusted for OCSP signing. This is used to set
3955 a root CA as a global signing root: that is any certificate that
3956 chains to that CA is an acceptable OCSP signing certificate.
3959 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3960 extensions from a separate configuration file.
3961 As when reading extensions from the main configuration file,
3962 the '-extensions ...' option may be used for specifying the
3964 [Massimiliano Pala <madwolf@comune.modena.it>]
3966 *) New OCSP utility. Allows OCSP requests to be generated or
3967 read. The request can be sent to a responder and the output
3968 parsed, outputed or printed in text form. Not complete yet:
3969 still needs to check the OCSP response validity.
3972 *) New subcommands for 'openssl ca':
3973 'openssl ca -status <serial>' prints the status of the cert with
3974 the given serial number (according to the index file).
3975 'openssl ca -updatedb' updates the expiry status of certificates
3977 [Massimiliano Pala <madwolf@comune.modena.it>]
3979 *) New '-newreq-nodes' command option to CA.pl. This is like
3980 '-newreq', but calls 'openssl req' with the '-nodes' option
3981 so that the resulting key is not encrypted.
3982 [Damien Miller <djm@mindrot.org>]
3984 *) New configuration for the GNU Hurd.
3985 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3987 *) Initial code to implement OCSP basic response verify. This
3988 is currently incomplete. Currently just finds the signer's
3989 certificate and verifies the signature on the response.
3992 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3993 value of OPENSSLDIR. This is available via the new '-d' option
3994 to 'openssl version', and is also included in 'openssl version -a'.
3997 *) Allowing defining memory allocation callbacks that will be given
3998 file name and line number information in additional arguments
3999 (a const char* and an int). The basic functionality remains, as
4000 well as the original possibility to just replace malloc(),
4001 realloc() and free() by functions that do not know about these
4002 additional arguments. To register and find out the current
4003 settings for extended allocation functions, the following
4004 functions are provided:
4006 CRYPTO_set_mem_ex_functions
4007 CRYPTO_set_locked_mem_ex_functions
4008 CRYPTO_get_mem_ex_functions
4009 CRYPTO_get_locked_mem_ex_functions
4011 These work the same way as CRYPTO_set_mem_functions and friends.
4012 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4013 extended allocation function is enabled.
4014 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4015 a conventional allocation function is enabled.
4016 [Richard Levitte, Bodo Moeller]
4018 *) Finish off removing the remaining LHASH function pointer casts.
4019 There should no longer be any prototype-casting required when using
4020 the LHASH abstraction, and any casts that remain are "bugs". See
4021 the callback types and macros at the head of lhash.h for details
4022 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4025 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4026 If /dev/[u]random devices are not available or do not return enough
4027 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4029 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4030 /etc/entropy will be queried once each in this sequence, quering stops
4031 when enough entropy was collected without querying more sockets.
4034 *) Change the Unix RAND_poll() variant to be able to poll several
4035 random devices, as specified by DEVRANDOM, until a sufficient amount
4036 of data has been collected. We spend at most 10 ms on each file
4037 (select timeout) and read in non-blocking mode. DEVRANDOM now
4038 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4039 (previously it was just the string "/dev/urandom"), so on typical
4040 platforms the 10 ms delay will never occur.
4041 Also separate out the Unix variant to its own file, rand_unix.c.
4042 For VMS, there's a currently-empty rand_vms.c.
4045 *) Move OCSP client related routines to ocsp_cl.c. These
4046 provide utility functions which an application needing
4047 to issue a request to an OCSP responder and analyse the
4048 response will typically need: as opposed to those which an
4049 OCSP responder itself would need which will be added later.
4051 OCSP_request_sign() signs an OCSP request with an API similar
4052 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4053 response. OCSP_response_get1_basic() extracts basic response
4054 from response. OCSP_resp_find_status(): finds and extracts status
4055 information from an OCSP_CERTID structure (which will be created
4056 when the request structure is built). These are built from lower
4057 level functions which work on OCSP_SINGLERESP structures but
4058 wont normally be used unless the application wishes to examine
4059 extensions in the OCSP response for example.
4061 Replace nonce routines with a pair of functions.
4062 OCSP_request_add1_nonce() adds a nonce value and optionally
4063 generates a random value. OCSP_check_nonce() checks the
4064 validity of the nonce in an OCSP response.
4067 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4068 This doesn't copy the supplied OCSP_CERTID and avoids the
4069 need to free up the newly created id. Change return type
4070 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4071 This can then be used to add extensions to the request.
4072 Deleted OCSP_request_new(), since most of its functionality
4073 is now in OCSP_REQUEST_new() (and the case insensitive name
4074 clash) apart from the ability to set the request name which
4075 will be added elsewhere.
4078 *) Update OCSP API. Remove obsolete extensions argument from
4079 various functions. Extensions are now handled using the new
4080 OCSP extension code. New simple OCSP HTTP function which
4081 can be used to send requests and parse the response.
4084 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4085 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4086 uses the special reorder version of SET OF to sort the attributes
4087 and reorder them to match the encoded order. This resolves a long
4088 standing problem: a verify on a PKCS7 structure just after signing
4089 it used to fail because the attribute order did not match the
4090 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4091 it uses the received order. This is necessary to tolerate some broken
4092 software that does not order SET OF. This is handled by encoding
4093 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4094 to produce the required SET OF.
4097 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4098 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4099 files to get correct declarations of the ASN.1 item variables.
4102 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4103 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4104 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4105 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4106 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4107 ASN1_ITEM and no wrapper functions.
4110 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4111 replace the old function pointer based I/O routines. Change most of
4112 the *_d2i_bio() and *_d2i_fp() functions to use these.
4115 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4116 lines, recognice more "algorithms" that can be deselected, and make
4117 it complain about algorithm deselection that isn't recognised.
4120 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4121 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4122 to use new functions. Add NO_ASN1_OLD which can be set to remove
4123 some old style ASN1 functions: this can be used to determine if old
4124 code will still work when these eventually go away.
4127 *) New extension functions for OCSP structures, these follow the
4128 same conventions as certificates and CRLs.
4131 *) New function X509V3_add1_i2d(). This automatically encodes and
4132 adds an extension. Its behaviour can be customised with various
4133 flags to append, replace or delete. Various wrappers added for
4134 certifcates and CRLs.
4137 *) Fix to avoid calling the underlying ASN1 print routine when
4138 an extension cannot be parsed. Correct a typo in the
4139 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4142 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4143 entries for variables.
4146 *) Add functionality to apps/openssl.c for detecting locking
4147 problems: As the program is single-threaded, all we have
4148 to do is register a locking callback using an array for
4149 storing which locks are currently held by the program.
4152 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4153 SSL_get_ex_data_X509_STORE_idx(), which is used in
4154 ssl_verify_cert_chain() and thus can be called at any time
4155 during TLS/SSL handshakes so that thread-safety is essential.
4156 Unfortunately, the ex_data design is not at all suited
4157 for multi-threaded use, so it probably should be abolished.
4160 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4161 [Broadcom, tweaked and integrated by Geoff Thorpe]
4163 *) Move common extension printing code to new function
4164 X509V3_print_extensions(). Reorganise OCSP print routines and
4165 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4168 *) New function X509_signature_print() to remove duplication in some
4172 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4173 set (this was treated exactly the same as SET OF previously). This
4174 is used to reorder the STACK representing the structure to match the
4175 encoding. This will be used to get round a problem where a PKCS7
4176 structure which was signed could not be verified because the STACK
4177 order did not reflect the encoded order.
4180 *) Reimplement the OCSP ASN1 module using the new code.
4183 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4184 for its ASN1 operations. The old style function pointers still exist
4185 for now but they will eventually go away.
4188 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4189 completely replaces the old ASN1 functionality with a table driven
4190 encoder and decoder which interprets an ASN1_ITEM structure describing
4191 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4192 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4193 has also been converted to the new form.
4196 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4197 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4198 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4199 for negative moduli.
4202 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4203 of not touching the result's sign bit.
4206 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4210 *) Changed the LHASH code to use prototypes for callbacks, and created
4211 macros to declare and implement thin (optionally static) functions
4212 that provide type-safety and avoid function pointer casting for the
4213 type-specific callbacks.
4216 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4218 [Veers Staats <staatsvr@asc.hpc.mil>,
4219 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4221 *) Reformat the FAQ so the different questions and answers can be divided
4222 in sections depending on the subject.
4225 *) Have the zlib compression code load ZLIB.DLL dynamically under
4229 *) New function BN_mod_sqrt for computing square roots modulo a prime
4230 (using the probabilistic Tonelli-Shanks algorithm unless
4231 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4232 be handled deterministically).
4233 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4235 *) Make BN_mod_inverse faster by explicitly handling small quotients
4236 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4237 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4240 *) New function BN_kronecker.
4243 *) Fix BN_gcd so that it works on negative inputs; the result is
4244 positive unless both parameters are zero.
4245 Previously something reasonably close to an infinite loop was
4246 possible because numbers could be growing instead of shrinking
4247 in the implementation of Euclid's algorithm.
4250 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4251 sign of the number in question.
4253 Fix BN_is_word(a,w) to work correctly for w == 0.
4255 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4256 because its test if the absolute value of 'a' equals 'w'.
4257 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4258 it exists mostly for use in the implementations of BN_is_zero(),
4259 BN_is_one(), and BN_is_word().
4262 *) New function BN_swap.
4265 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4266 the exponentiation functions are more likely to produce reasonable
4267 results on negative inputs.
4270 *) Change BN_mod_mul so that the result is always non-negative.
4271 Previously, it could be negative if one of the factors was negative;
4272 I don't think anyone really wanted that behaviour.
4275 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4276 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4277 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4278 and add new functions:
4287 BN_mod_lshift1_quick
4291 These functions always generate non-negative results.
4293 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4294 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4296 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4297 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4298 be reduced modulo m.
4299 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4302 The following entry accidentily appeared in the CHANGES file
4303 distributed with OpenSSL 0.9.7. The modifications described in
4304 it do *not* apply to OpenSSL 0.9.7.
4306 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4307 was actually never needed) and in BN_mul(). The removal in BN_mul()
4308 required a small change in bn_mul_part_recursive() and the addition
4309 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4310 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4311 bn_sub_words() and bn_add_words() except they take arrays with
4316 *) In 'openssl passwd', verify passwords read from the terminal
4317 unless the '-salt' option is used (which usually means that
4318 verification would just waste user's time since the resulting
4319 hash is going to be compared with some given password hash)
4320 or the new '-noverify' option is used.
4322 This is an incompatible change, but it does not affect
4323 non-interactive use of 'openssl passwd' (passwords on the command
4324 line, '-stdin' option, '-in ...' option) and thus should not
4328 *) Remove all references to RSAref, since there's no more need for it.
4331 *) Make DSO load along a path given through an environment variable
4332 (SHLIB_PATH) with shl_load().
4335 *) Constify the ENGINE code as a result of BIGNUM constification.
4336 Also constify the RSA code and most things related to it. In a
4337 few places, most notable in the depth of the ASN.1 code, ugly
4338 casts back to non-const were required (to be solved at a later
4342 *) Make it so the openssl application has all engines loaded by default.
4345 *) Constify the BIGNUM routines a little more.
4348 *) Add the following functions:
4350 ENGINE_load_cswift()
4352 ENGINE_load_atalla()
4354 ENGINE_load_builtin_engines()
4356 That way, an application can itself choose if external engines that
4357 are built-in in OpenSSL shall ever be used or not. The benefit is
4358 that applications won't have to be linked with libdl or other dso
4359 libraries unless it's really needed.
4361 Changed 'openssl engine' to load all engines on demand.
4362 Changed the engine header files to avoid the duplication of some
4363 declarations (they differed!).
4366 *) 'openssl engine' can now list capabilities.
4369 *) Better error reporting in 'openssl engine'.
4372 *) Never call load_dh_param(NULL) in s_server.
4375 *) Add engine application. It can currently list engines by name and
4376 identity, and test if they are actually available.
4379 *) Improve RPM specification file by forcing symbolic linking and making
4380 sure the installed documentation is also owned by root.root.
4381 [Damien Miller <djm@mindrot.org>]
4383 *) Give the OpenSSL applications more possibilities to make use of
4384 keys (public as well as private) handled by engines.
4387 *) Add OCSP code that comes from CertCo.
4390 *) Add VMS support for the Rijndael code.
4393 *) Added untested support for Nuron crypto accelerator.
4396 *) Add support for external cryptographic devices. This code was
4397 previously distributed separately as the "engine" branch.
4398 [Geoff Thorpe, Richard Levitte]
4400 *) Rework the filename-translation in the DSO code. It is now possible to
4401 have far greater control over how a "name" is turned into a filename
4402 depending on the operating environment and any oddities about the
4403 different shared library filenames on each system.
4406 *) Support threads on FreeBSD-elf in Configure.
4409 *) Fix for SHA1 assembly problem with MASM: it produces
4410 warnings about corrupt line number information when assembling
4411 with debugging information. This is caused by the overlapping
4413 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4416 NCONF_get_number() has no error checking at all. As a replacement,
4417 NCONF_get_number_e() is defined (_e for "error checking") and is
4418 promoted strongly. The old NCONF_get_number is kept around for
4419 binary backward compatibility.
4420 Make it possible for methods to load from something other than a BIO,
4421 by providing a function pointer that is given a name instead of a BIO.
4422 For example, this could be used to load configuration data from an
4426 *) Fix for non blocking accept BIOs. Added new I/O special reason
4427 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4428 with non blocking I/O was not possible because no retry code was
4429 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4433 *) Added the beginnings of Rijndael support.
4436 *) Fix for bug in DirectoryString mask setting. Add support for
4437 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4438 to allow certificate printing to more controllable, additional
4439 'certopt' option to 'x509' to allow new printing options to be
4443 *) Clean old EAY MD5 hack from e_os.h.
4446 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4448 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4449 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4450 [Joe Orton, Steve Henson]
4452 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4454 *) Fix additional bug revealed by the NISCC test suite:
4456 Stop bug triggering large recursion when presented with
4457 certain ASN.1 tags (CVE-2003-0851)
4460 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4462 *) Fix various bugs revealed by running the NISCC test suite:
4464 Stop out of bounds reads in the ASN1 code when presented with
4465 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4467 If verify callback ignores invalid public key errors don't try to check
4468 certificate signature with the NULL public key.
4472 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4473 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4477 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4478 extra data after the compression methods not only for TLS 1.0
4479 but also for SSL 3.0 (as required by the specification).
4480 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4482 *) Change X509_certificate_type() to mark the key as exported/exportable
4483 when it's 512 *bits* long, not 512 bytes.
4486 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4488 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4489 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4490 a protocol version number mismatch like a decryption error
4491 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4494 *) Turn on RSA blinding by default in the default implementation
4495 to avoid a timing attack. Applications that don't want it can call
4496 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4497 They would be ill-advised to do so in most cases.
4498 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4500 *) Change RSA blinding code so that it works when the PRNG is not
4501 seeded (in this case, the secret RSA exponent is abused as
4502 an unpredictable seed -- if it is not unpredictable, there
4503 is no point in blinding anyway). Make RSA blinding thread-safe
4504 by remembering the creator's thread ID in rsa->blinding and
4505 having all other threads use local one-time blinding factors
4506 (this requires more computation than sharing rsa->blinding, but
4507 avoids excessive locking; and if an RSA object is not shared
4508 between threads, blinding will still be very fast).
4511 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4513 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4514 via timing by performing a MAC computation even if incorrrect
4515 block cipher padding has been found. This is a countermeasure
4516 against active attacks where the attacker has to distinguish
4517 between bad padding and a MAC verification error. (CVE-2003-0078)
4519 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4520 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4521 Martin Vuagnoux (EPFL, Ilion)]
4523 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4525 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4526 memory from it's contents. This is done with a counter that will
4527 place alternating values in each byte. This can be used to solve
4528 two issues: 1) the removal of calls to memset() by highly optimizing
4529 compilers, and 2) cleansing with other values than 0, since those can
4530 be read through on certain media, for example a swap space on disk.
4533 *) Bugfix: client side session caching did not work with external caching,
4534 because the session->cipher setting was not restored when reloading
4535 from the external cache. This problem was masked, when
4536 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4537 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4540 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4541 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4542 [Zeev Lieber <zeev-l@yahoo.com>]
4544 *) Undo an undocumented change introduced in 0.9.6e which caused
4545 repeated calls to OpenSSL_add_all_ciphers() and
4546 OpenSSL_add_all_digests() to be ignored, even after calling
4550 *) Change the default configuration reader to deal with last line not
4551 being properly terminated.
4554 *) Change X509_NAME_cmp() so it applies the special rules on handling
4555 DN values that are of type PrintableString, as well as RDNs of type
4556 emailAddress where the value has the type ia5String.
4557 [stefank@valicert.com via Richard Levitte]
4559 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4560 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4561 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4562 the bitwise-OR of the two for use by the majority of applications
4563 wanting this behaviour, and update the docs. The documented
4564 behaviour and actual behaviour were inconsistent and had been
4565 changing anyway, so this is more a bug-fix than a behavioural
4567 [Geoff Thorpe, diagnosed by Nadav Har'El]
4569 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4570 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4573 *) Fix initialization code race conditions in
4574 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4575 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4576 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4577 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4578 ssl2_get_cipher_by_char(),
4579 ssl3_get_cipher_by_char().
4580 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4582 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4583 the cached sessions are flushed, as the remove_cb() might use ex_data
4584 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4585 (see [openssl.org #212]).
4586 [Geoff Thorpe, Lutz Jaenicke]
4588 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4589 length, instead of the encoding length to d2i_ASN1_OBJECT.
4592 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4594 *) [In 0.9.6g-engine release:]
4595 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4596 [Lynn Gazis <lgazis@rainbow.com>]
4598 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4600 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4601 and get fix the header length calculation.
4602 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4603 Alon Kantor <alonk@checkpoint.com> (and others),
4606 *) Use proper error handling instead of 'assertions' in buffer
4607 overflow checks added in 0.9.6e. This prevents DoS (the
4608 assertions could call abort()).
4609 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4611 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4613 *) Add various sanity checks to asn1_get_length() to reject
4614 the ASN1 length bytes if they exceed sizeof(long), will appear
4615 negative or the content length exceeds the length of the
4617 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4619 *) Fix cipher selection routines: ciphers without encryption had no flags
4620 for the cipher strength set and where therefore not handled correctly
4621 by the selection routines (PR #130).
4624 *) Fix EVP_dsa_sha macro.
4628 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4629 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4630 that was added in OpenSSL 0.9.6d.
4632 As the countermeasure turned out to be incompatible with some
4633 broken SSL implementations, the new option is part of SSL_OP_ALL.
4634 SSL_OP_ALL is usually employed when compatibility with weird SSL
4635 implementations is desired (e.g. '-bugs' option to 's_client' and
4636 's_server'), so the new option is automatically set in many
4640 *) Changes in security patch:
4642 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4643 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4644 Air Force Materiel Command, USAF, under agreement number
4647 *) Add various sanity checks to asn1_get_length() to reject
4648 the ASN1 length bytes if they exceed sizeof(long), will appear
4649 negative or the content length exceeds the length of the
4650 supplied buffer. (CVE-2002-0659)
4651 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4653 *) Assertions for various potential buffer overflows, not known to
4655 [Ben Laurie (CHATS)]
4657 *) Various temporary buffers to hold ASCII versions of integers were
4658 too small for 64 bit platforms. (CVE-2002-0655)
4659 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4661 *) Remote buffer overflow in SSL3 protocol - an attacker could
4662 supply an oversized session ID to a client. (CVE-2002-0656)
4663 [Ben Laurie (CHATS)]
4665 *) Remote buffer overflow in SSL2 protocol - an attacker could
4666 supply an oversized client master key. (CVE-2002-0656)
4667 [Ben Laurie (CHATS)]
4669 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4671 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4672 encoded as NULL) with id-dsa-with-sha1.
4673 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4675 *) Check various X509_...() return values in apps/req.c.
4676 [Nils Larsch <nla@trustcenter.de>]
4678 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4679 an end-of-file condition would erronously be flagged, when the CRLF
4680 was just at the end of a processed block. The bug was discovered when
4681 processing data through a buffering memory BIO handing the data to a
4682 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4683 <ptsekov@syntrex.com> and Nedelcho Stanev.
4686 *) Implement a countermeasure against a vulnerability recently found
4687 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4688 before application data chunks to avoid the use of known IVs
4689 with data potentially chosen by the attacker.
4692 *) Fix length checks in ssl3_get_client_hello().
4695 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4696 to prevent ssl3_read_internal() from incorrectly assuming that
4697 ssl3_read_bytes() found application data while handshake
4698 processing was enabled when in fact s->s3->in_read_app_data was
4699 merely automatically cleared during the initial handshake.
4700 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4702 *) Fix object definitions for Private and Enterprise: they were not
4703 recognized in their shortname (=lowercase) representation. Extend
4704 obj_dat.pl to issue an error when using undefined keywords instead
4705 of silently ignoring the problem (Svenning Sorensen
4706 <sss@sss.dnsalias.net>).
4709 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4710 generators, i.e. generators other than 2 and 5. (Previously, the
4711 code did not properly initialise the 'add' and 'rem' values to
4712 BN_generate_prime().)
4714 In the new general case, we do not insist that 'generator' is
4715 actually a primitive root: This requirement is rather pointless;
4716 a generator of the order-q subgroup is just as good, if not
4720 *) Map new X509 verification errors to alerts. Discovered and submitted by
4721 Tom Wu <tom@arcot.com>.
4724 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4725 returning non-zero before the data has been completely received
4726 when using non-blocking I/O.
4727 [Bodo Moeller; problem pointed out by John Hughes]
4729 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4730 [Ben Laurie, Lutz Jaenicke]
4732 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4733 Yoram Zahavi <YoramZ@gilian.com>).
4736 *) Add information about CygWin 1.3 and on, and preserve proper
4737 configuration for the versions before that.
4738 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4740 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4741 check whether we deal with a copy of a session and do not delete from
4742 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4743 <izhar@checkpoint.com>.
4746 *) Do not store session data into the internal session cache, if it
4747 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4748 flag is set). Proposed by Aslam <aslam@funk.com>.
4751 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4755 *) [In 0.9.6d-engine release:]
4756 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4757 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4759 *) Add the configuration target linux-s390x.
4760 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4762 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4763 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4764 variable as an indication that a ClientHello message has been
4765 received. As the flag value will be lost between multiple
4766 invocations of ssl3_accept when using non-blocking I/O, the
4767 function may not be aware that a handshake has actually taken
4768 place, thus preventing a new session from being added to the
4771 To avoid this problem, we now set s->new_session to 2 instead of
4772 using a local variable.
4773 [Lutz Jaenicke, Bodo Moeller]
4775 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4776 if the SSL_R_LENGTH_MISMATCH error is detected.
4777 [Geoff Thorpe, Bodo Moeller]
4779 *) New 'shared_ldflag' column in Configure platform table.
4782 *) Fix EVP_CIPHER_mode macro.
4783 ["Dan S. Camper" <dan@bti.net>]
4785 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4786 type, we must throw them away by setting rr->length to 0.
4787 [D P Chang <dpc@qualys.com>]
4789 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4791 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4792 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4793 worked incorrectly for those cases where range = 10..._2 and
4794 3*range is two bits longer than range.)
4797 *) Only add signing time to PKCS7 structures if it is not already
4801 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4802 OBJ_ld_ce should be OBJ_id_ce.
4803 Also some ip-pda OIDs in crypto/objects/objects.txt were
4804 incorrect (cf. RFC 3039).
4805 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4807 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4808 returns early because it has nothing to do.
4809 [Andy Schneider <andy.schneider@bjss.co.uk>]
4811 *) [In 0.9.6c-engine release:]
4812 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4813 [Andy Schneider <andy.schneider@bjss.co.uk>]
4815 *) [In 0.9.6c-engine release:]
4816 Add support for Cryptographic Appliance's keyserver technology.
4817 (Use engine 'keyclient')
4818 [Cryptographic Appliances and Geoff Thorpe]
4820 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4821 is called via tools/c89.sh because arguments have to be
4822 rearranged (all '-L' options must appear before the first object
4824 [Richard Shapiro <rshapiro@abinitio.com>]
4826 *) [In 0.9.6c-engine release:]
4827 Add support for Broadcom crypto accelerator cards, backported
4829 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4831 *) [In 0.9.6c-engine release:]
4832 Add support for SureWare crypto accelerator cards from
4833 Baltimore Technologies. (Use engine 'sureware')
4834 [Baltimore Technologies and Mark Cox]
4836 *) [In 0.9.6c-engine release:]
4837 Add support for crypto accelerator cards from Accelerated
4838 Encryption Processing, www.aep.ie. (Use engine 'aep')
4839 [AEP Inc. and Mark Cox]
4841 *) Add a configuration entry for gcc on UnixWare.
4842 [Gary Benson <gbenson@redhat.com>]
4844 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4845 messages are stored in a single piece (fixed-length part and
4846 variable-length part combined) and fix various bugs found on the way.
4849 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4850 instead. BIO_gethostbyname() does not know what timeouts are
4851 appropriate, so entries would stay in cache even when they have
4853 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4855 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4856 faced with a pathologically small ClientHello fragment that does
4857 not contain client_version: Instead of aborting with an error,
4858 simply choose the highest available protocol version (i.e.,
4859 TLS 1.0 unless it is disabled). In practice, ClientHello
4860 messages are never sent like this, but this change gives us
4861 strictly correct behaviour at least for TLS.
4864 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4865 never resets s->method to s->ctx->method when called from within
4866 one of the SSL handshake functions.
4867 [Bodo Moeller; problem pointed out by Niko Baric]
4869 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4870 (sent using the client's version number) if client_version is
4871 smaller than the protocol version in use. Also change
4872 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4873 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4874 the client will at least see that alert.
4877 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4881 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4882 client receives HelloRequest while in a handshake.
4883 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4885 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4886 should end in 'break', not 'goto end' which circuments various
4887 cleanups done in state SSL_ST_OK. But session related stuff
4888 must be disabled for SSL_ST_OK in the case that we just sent a
4891 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4892 before just sending a HelloRequest.
4893 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4895 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4896 reveal whether illegal block cipher padding was found or a MAC
4897 verification error occured. (Neither SSLerr() codes nor alerts
4898 are directly visible to potential attackers, but the information
4899 may leak via logfiles.)
4901 Similar changes are not required for the SSL 2.0 implementation
4902 because the number of padding bytes is sent in clear for SSL 2.0,
4903 and the extra bytes are just ignored. However ssl/s2_pkt.c
4904 failed to verify that the purported number of padding bytes is in
4908 *) Add OpenUNIX-8 support including shared libraries
4909 (Boyd Lynn Gerber <gerberb@zenez.com>).
4912 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4913 'wristwatch attack' using huge encoding parameters (cf.
4914 James H. Manger's CRYPTO 2001 paper). Note that the
4915 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4916 encoding parameters and hence was not vulnerable.
4919 *) BN_sqr() bug fix.
4920 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4922 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4923 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4924 followed by modular reduction.
4925 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4927 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4928 equivalent based on BN_pseudo_rand() instead of BN_rand().
4931 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4932 This function was broken, as the check for a new client hello message
4933 to handle SGC did not allow these large messages.
4934 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4937 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4940 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4941 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4944 *) Rework the configuration and shared library support for Tru64 Unix.
4945 The configuration part makes use of modern compiler features and
4946 still retains old compiler behavior for those that run older versions
4947 of the OS. The shared library support part includes a variant that
4948 uses the RPATH feature, and is available through the special
4949 configuration target "alpha-cc-rpath", which will never be selected
4951 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4953 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4954 with the same message size as in ssl3_get_certificate_request().
4955 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4956 messages might inadvertently be reject as too long.
4957 [Petr Lampa <lampa@fee.vutbr.cz>]
4959 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4962 *) Modified SSL library such that the verify_callback that has been set
4963 specificly for an SSL object with SSL_set_verify() is actually being
4964 used. Before the change, a verify_callback set with this function was
4965 ignored and the verify_callback() set in the SSL_CTX at the time of
4966 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4967 to allow the necessary settings.
4970 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4971 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4972 done automatically (in contradiction to the requirements of the C
4973 standard). This made problems when used from OpenSSH.
4976 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4977 dh->length and always used
4979 BN_rand_range(priv_key, dh->p).
4981 BN_rand_range() is not necessary for Diffie-Hellman, and this
4982 specific range makes Diffie-Hellman unnecessarily inefficient if
4983 dh->length (recommended exponent length) is much smaller than the
4984 length of dh->p. We could use BN_rand_range() if the order of
4985 the subgroup was stored in the DH structure, but we only have
4990 BN_rand(priv_key, l, ...)
4992 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4998 RSA_eay_public_encrypt
4999 RSA_eay_private_decrypt
5000 RSA_eay_private_encrypt (signing)
5001 RSA_eay_public_decrypt (signature verification)
5003 (default implementations for RSA_public_encrypt,
5004 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5005 always reject numbers >= n.
5008 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5009 to synchronize access to 'locking_thread'. This is necessary on
5010 systems where access to 'locking_thread' (an 'unsigned long'
5011 variable) is not atomic.
5014 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5015 *before* setting the 'crypto_lock_rand' flag. The previous code had
5016 a race condition if 0 is a valid thread ID.
5017 [Travis Vitek <vitek@roguewave.com>]
5019 *) Add support for shared libraries under Irix.
5020 [Albert Chin-A-Young <china@thewrittenword.com>]
5022 *) Add configuration option to build on Linux on both big-endian and
5024 [Ralf Baechle <ralf@uni-koblenz.de>]
5026 *) Add the possibility to create shared libraries on HP-UX.
5029 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5031 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5032 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5033 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5034 PRNG state recovery was possible based on the output of
5035 one PRNG request appropriately sized to gain knowledge on
5036 'md' followed by enough consecutive 1-byte PRNG requests
5037 to traverse all of 'state'.
5039 1. When updating 'md_local' (the current thread's copy of 'md')
5040 during PRNG output generation, hash all of the previous
5041 'md_local' value, not just the half used for PRNG output.
5043 2. Make the number of bytes from 'state' included into the hash
5044 independent from the number of PRNG bytes requested.
5046 The first measure alone would be sufficient to avoid
5047 Markku-Juhani's attack. (Actually it had never occurred
5048 to me that the half of 'md_local' used for chaining was the
5049 half from which PRNG output bytes were taken -- I had always
5050 assumed that the secret half would be used.) The second
5051 measure makes sure that additional data from 'state' is never
5052 mixed into 'md_local' in small portions; this heuristically
5053 further strengthens the PRNG.
5056 *) Fix crypto/bn/asm/mips3.s.
5059 *) When only the key is given to "enc", the IV is undefined. Print out
5060 an error message in this case.
5063 *) Handle special case when X509_NAME is empty in X509 printing routines.
5066 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5067 positive and less than q.
5070 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5071 used: it isn't thread safe and the add_lock_callback should handle
5073 [Paul Rose <Paul.Rose@bridge.com>]
5075 *) Verify that incoming data obeys the block size in
5076 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5080 [Ulf Möller, Bodo Möller]
5082 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5083 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5084 when fixing the server behaviour for backwards-compatible 'client
5085 hello' messages. (Note that the attack is impractical against
5086 SSL 3.0 and TLS 1.0 anyway because length and version checking
5087 means that the probability of guessing a valid ciphertext is
5088 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5091 Before 0.9.5, the countermeasure (hide the error by generating a
5092 random 'decryption result') did not work properly because
5093 ERR_clear_error() was missing, meaning that SSL_get_error() would
5094 detect the supposedly ignored error.
5096 Both problems are now fixed.
5099 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5100 (previously it was 1024).
5103 *) Fix for compatibility mode trust settings: ignore trust settings
5104 unless some valid trust or reject settings are present.
5107 *) Fix for blowfish EVP: its a variable length cipher.
5110 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5111 parameters in DSA public key structures and return an error in the
5112 DSA routines if parameters are absent.
5115 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5116 in the current directory if neither $RANDFILE nor $HOME was set.
5117 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5118 caused some confusion to Windows users who haven't defined $HOME.
5119 Thus RAND_file_name() is changed again: e_os.h can define a
5120 DEFAULT_HOME, which will be used if $HOME is not set.
5121 For Windows, we use "C:"; on other platforms, we still require
5122 environment variables.
5124 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5125 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5126 having multiple threads call RAND_poll() concurrently.
5129 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5130 combination of a flag and a thread ID variable.
5131 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5132 flag), *other* threads can enter ssleay_add_bytes without obeying
5133 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5134 that they do not hold after the first thread unsets add_do_not_lock).
5137 *) Change bctest again: '-x' expressions are not available in all
5141 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5143 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5144 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5146 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5147 the default extension for executables, if any. Also, make the perl
5148 scripts that use symlink() to test if it really exists and use "cp"
5149 if it doesn't. All this made OpenSSL compilable and installable in
5153 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5154 If SEQUENCE is length is indefinite just set c->slen to the total
5155 amount of data available.
5156 [Steve Henson, reported by shige@FreeBSD.org]
5157 [This change does not apply to 0.9.7.]
5159 *) Change bctest to avoid here-documents inside command substitution
5160 (workaround for FreeBSD /bin/sh bug).
5161 For compatibility with Ultrix, avoid shell functions (introduced
5162 in the bctest version that searches along $PATH).
5165 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5166 with des_encrypt() defined on some operating systems, like Solaris
5170 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5171 On the Importance of Eliminating Errors in Cryptographic
5172 Computations, J. Cryptology 14 (2001) 2, 101-119,
5173 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5176 *) MIPS assembler BIGNUM division bug fix.
5179 *) Disabled incorrect Alpha assembler code.
5182 *) Fix PKCS#7 decode routines so they correctly update the length
5183 after reading an EOC for the EXPLICIT tag.
5185 [This change does not apply to 0.9.7.]
5187 *) Fix bug in PKCS#12 key generation routines. This was triggered
5188 if a 3DES key was generated with a 0 initial byte. Include
5189 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5190 (but broken) behaviour.
5193 *) Enhance bctest to search for a working bc along $PATH and print
5195 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5197 *) Fix memory leaks in err.c: free err_data string if necessary;
5198 don't write to the wrong index in ERR_set_error_data.
5201 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5205 *) Replace rdtsc with _emit statements for VC++ version 5.
5206 [Jeremy Cooper <jeremy@baymoo.org>]
5208 *) Make it possible to reuse SSLv2 sessions.
5211 *) In copy_email() check for >= 0 as a return value for
5212 X509_NAME_get_index_by_NID() since 0 is a valid index.
5213 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5215 *) Avoid coredump with unsupported or invalid public keys by checking if
5216 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5217 PKCS7_verify() fails with non detached data.
5220 *) Don't use getenv in library functions when run as setuid/setgid.
5221 New function OPENSSL_issetugid().
5224 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5225 due to incorrect handling of multi-threading:
5227 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5229 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5231 3. Count how many times MemCheck_off() has been called so that
5232 nested use can be treated correctly. This also avoids
5233 inband-signalling in the previous code (which relied on the
5234 assumption that thread ID 0 is impossible).
5237 *) Add "-rand" option also to s_client and s_server.
5240 *) Fix CPU detection on Irix 6.x.
5241 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5242 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5244 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5247 [This change does not apply to 0.9.7.]
5249 *) Use the cached encoding of an X509_NAME structure rather than
5250 copying it. This is apparently the reason for the libsafe "errors"
5251 but the code is actually correct.
5254 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5255 Bleichenbacher's DSA attack.
5256 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5257 to be set and top=0 forces the highest bit to be set; top=-1 is new
5258 and leaves the highest bit random.
5259 [Ulf Moeller, Bodo Moeller]
5261 *) In the NCONF_...-based implementations for CONF_... queries
5262 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5263 a temporary CONF structure with the data component set to NULL
5264 (which gives segmentation faults in lh_retrieve).
5265 Instead, use NULL for the CONF pointer in CONF_get_string and
5266 CONF_get_number (which may use environment variables) and directly
5267 return NULL from CONF_get_section.
5270 *) Fix potential buffer overrun for EBCDIC.
5273 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5274 keyUsage if basicConstraints absent for a CA.
5277 *) Make SMIME_write_PKCS7() write mail header values with a format that
5278 is more generally accepted (no spaces before the semicolon), since
5279 some programs can't parse those values properly otherwise. Also make
5280 sure BIO's that break lines after each write do not create invalid
5284 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5285 macros previously used would not encode an empty SEQUENCE OF
5286 and break the signature.
5288 [This change does not apply to 0.9.7.]
5290 *) Zero the premaster secret after deriving the master secret in
5294 *) Add some EVP_add_digest_alias registrations (as found in
5295 OpenSSL_add_all_digests()) to SSL_library_init()
5296 aka OpenSSL_add_ssl_algorithms(). This provides improved
5297 compatibility with peers using X.509 certificates
5298 with unconventional AlgorithmIdentifier OIDs.
5301 *) Fix for Irix with NO_ASM.
5302 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5304 *) ./config script fixes.
5305 [Ulf Moeller, Richard Levitte]
5307 *) Fix 'openssl passwd -1'.
5310 *) Change PKCS12_key_gen_asc() so it can cope with non null
5311 terminated strings whose length is passed in the passlen
5312 parameter, for example from PEM callbacks. This was done
5313 by adding an extra length parameter to asc2uni().
5314 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5316 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5317 call failed, free the DSA structure.
5320 *) Fix to uni2asc() to cope with zero length Unicode strings.
5321 These are present in some PKCS#12 files.
5324 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5325 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5326 when writing a 32767 byte record.
5327 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5329 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5330 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5332 (RSA objects have a reference count access to which is protected
5333 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5334 so they are meant to be shared between threads.)
5335 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5336 "Reddie, Steven" <Steven.Reddie@ca.com>]
5338 *) Fix a deadlock in CRYPTO_mem_leaks().
5341 *) Use better test patterns in bntest.
5344 *) rand_win.c fix for Borland C.
5347 *) BN_rshift bugfix for n == 0.
5350 *) Add a 'bctest' script that checks for some known 'bc' bugs
5351 so that 'make test' does not abort just because 'bc' is broken.
5354 *) Store verify_result within SSL_SESSION also for client side to
5355 avoid potential security hole. (Re-used sessions on the client side
5356 always resulted in verify_result==X509_V_OK, not using the original
5357 result of the server certificate verification.)
5360 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5361 SSL3_RT_APPLICATION_DATA, return 0.
5362 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5366 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5367 releases, have been re-implemented by renaming the previous
5368 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5369 and ssl3_read_internal, respectively, and adding 'peek' parameters
5370 to them. The new ssl[23]_{read,peek} functions are calls to
5371 ssl[23]_read_internal with the 'peek' flag set appropriately.
5372 A 'peek' parameter has also been added to ssl3_read_bytes, which
5373 does the actual work for ssl3_read_internal.
5376 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5377 the method-specific "init()" handler. Also clean up ex_data after
5378 calling the method-specific "finish()" handler. Previously, this was
5379 happening the other way round.
5382 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5383 The previous value, 12, was not always sufficient for BN_mod_exp().
5386 *) Make sure that shared libraries get the internal name engine with
5387 the full version number and not just 0. This should mark the
5388 shared libraries as not backward compatible. Of course, this should
5389 be changed again when we can guarantee backward binary compatibility.
5392 *) Fix typo in get_cert_by_subject() in by_dir.c
5393 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5395 *) Rework the system to generate shared libraries:
5397 - Make note of the expected extension for the shared libraries and
5398 if there is a need for symbolic links from for example libcrypto.so.0
5399 to libcrypto.so.0.9.7. There is extended info in Configure for
5402 - Make as few rebuilds of the shared libraries as possible.
5404 - Still avoid linking the OpenSSL programs with the shared libraries.
5406 - When installing, install the shared libraries separately from the
5410 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5412 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5413 and not in SSL_clear because the latter is also used by the
5414 accept/connect functions; previously, the settings made by
5415 SSL_set_read_ahead would be lost during the handshake.
5416 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5418 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5419 Previously, it would create entries for disableed algorithms no
5423 *) Added several new manual pages for SSL_* function.
5426 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5428 *) In ssl23_get_client_hello, generate an error message when faced
5429 with an initial SSL 3.0/TLS record that is too small to contain the
5430 first two bytes of the ClientHello message, i.e. client_version.
5431 (Note that this is a pathologic case that probably has never happened
5432 in real life.) The previous approach was to use the version number
5433 from the record header as a substitute; but our protocol choice
5434 should not depend on that one because it is not authenticated
5435 by the Finished messages.
5438 *) More robust randomness gathering functions for Windows.
5439 [Jeffrey Altman <jaltman@columbia.edu>]
5441 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5442 not set then we don't setup the error code for issuer check errors
5443 to avoid possibly overwriting other errors which the callback does
5444 handle. If an application does set the flag then we assume it knows
5445 what it is doing and can handle the new informational codes
5449 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5450 a general "ANY" type, as such it should be able to decode anything
5451 including tagged types. However it didn't check the class so it would
5452 wrongly interpret tagged types in the same way as their universal
5453 counterpart and unknown types were just rejected. Changed so that the
5454 tagged and unknown types are handled in the same way as a SEQUENCE:
5455 that is the encoding is stored intact. There is also a new type
5456 "V_ASN1_OTHER" which is used when the class is not universal, in this
5457 case we have no idea what the actual type is so we just lump them all
5461 *) On VMS, stdout may very well lead to a file that is written to
5462 in a record-oriented fashion. That means that every write() will
5463 write a separate record, which will be read separately by the
5464 programs trying to read from it. This can be very confusing.
5466 The solution is to put a BIO filter in the way that will buffer
5467 text until a linefeed is reached, and then write everything a
5468 line at a time, so every record written will be an actual line,
5469 not chunks of lines and not (usually doesn't happen, but I've
5470 seen it once) several lines in one record. BIO_f_linebuffer() is
5473 Currently, it's a VMS-only method, because that's where it has
5474 been tested well enough.
5477 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5478 it can return incorrect results.
5479 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5480 but it was in 0.9.6-beta[12].)
5483 *) Disable the check for content being present when verifying detached
5484 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5485 include zero length content when signing messages.
5488 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5489 BIO_ctrl (for BIO pairs).
5492 *) Add DSO method for VMS.
5495 *) Bug fix: Montgomery multiplication could produce results with the
5499 *) Add RPM specification openssl.spec and modify it to build three
5500 packages. The default package contains applications, application
5501 documentation and run-time libraries. The devel package contains
5502 include files, static libraries and function documentation. The
5503 doc package contains the contents of the doc directory. The original
5504 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5507 *) Add a large number of documentation files for many SSL routines.
5508 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5510 *) Add a configuration entry for Sony News 4.
5511 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5513 *) Don't set the two most significant bits to one when generating a
5514 random number < q in the DSA library.
5517 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5518 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5519 the underlying transport is blocking) if a handshake took place.
5520 (The default behaviour is needed by applications such as s_client
5521 and s_server that use select() to determine when to use SSL_read;
5522 but for applications that know in advance when to expect data, it
5523 just makes things more complicated.)
5526 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5530 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5531 work better on such systems.
5532 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5534 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5535 Update PKCS12_parse() so it copies the friendlyName and the
5536 keyid to the certificates aux info.
5539 *) Fix bug in PKCS7_verify() which caused an infinite loop
5540 if there was more than one signature.
5541 [Sven Uszpelkat <su@celocom.de>]
5543 *) Major change in util/mkdef.pl to include extra information
5544 about each symbol, as well as presentig variables as well
5545 as functions. This change means that there's n more need
5546 to rebuild the .num files when some algorithms are excluded.
5549 *) Allow the verify time to be set by an application,
5550 rather than always using the current time.
5553 *) Phase 2 verify code reorganisation. The certificate
5554 verify code now looks up an issuer certificate by a
5555 number of criteria: subject name, authority key id
5556 and key usage. It also verifies self signed certificates
5557 by the same criteria. The main comparison function is
5558 X509_check_issued() which performs these checks.
5560 Lot of changes were necessary in order to support this
5561 without completely rewriting the lookup code.
5563 Authority and subject key identifier are now cached.
5565 The LHASH 'certs' is X509_STORE has now been replaced
5566 by a STACK_OF(X509_OBJECT). This is mainly because an
5567 LHASH can't store or retrieve multiple objects with
5568 the same hash value.
5570 As a result various functions (which were all internal
5571 use only) have changed to handle the new X509_STORE
5572 structure. This will break anything that messed round
5573 with X509_STORE internally.
5575 The functions X509_STORE_add_cert() now checks for an
5576 exact match, rather than just subject name.
5578 The X509_STORE API doesn't directly support the retrieval
5579 of multiple certificates matching a given criteria, however
5580 this can be worked round by performing a lookup first
5581 (which will fill the cache with candidate certificates)
5582 and then examining the cache for matches. This is probably
5583 the best we can do without throwing out X509_LOOKUP
5584 entirely (maybe later...).
5586 The X509_VERIFY_CTX structure has been enhanced considerably.
5588 All certificate lookup operations now go via a get_issuer()
5589 callback. Although this currently uses an X509_STORE it
5590 can be replaced by custom lookups. This is a simple way
5591 to bypass the X509_STORE hackery necessary to make this
5592 work and makes it possible to use more efficient techniques
5593 in future. A very simple version which uses a simple
5594 STACK for its trusted certificate store is also provided
5595 using X509_STORE_CTX_trusted_stack().
5597 The verify_cb() and verify() callbacks now have equivalents
5598 in the X509_STORE_CTX structure.
5600 X509_STORE_CTX also has a 'flags' field which can be used
5601 to customise the verify behaviour.
5604 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5605 excludes S/MIME capabilities.
5608 *) When a certificate request is read in keep a copy of the
5609 original encoding of the signed data and use it when outputing
5610 again. Signatures then use the original encoding rather than
5611 a decoded, encoded version which may cause problems if the
5612 request is improperly encoded.
5615 *) For consistency with other BIO_puts implementations, call
5616 buffer_write(b, ...) directly in buffer_puts instead of calling
5619 In BIO_puts, increment b->num_write as in BIO_write.
5620 [Peter.Sylvester@EdelWeb.fr]
5622 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5623 BN_zero, we may not return a BIGNUM with an array consisting of
5627 *) Avoid calling abort() from within the library when problems are
5628 detected, except if preprocessor symbols have been defined
5629 (such as REF_CHECK, BN_DEBUG etc.).
5632 *) New openssl application 'rsautl'. This utility can be
5633 used for low level RSA operations. DER public key
5634 BIO/fp routines also added.
5637 *) New Configure entry and patches for compiling on QNX 4.
5638 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5640 *) A demo state-machine implementation was sponsored by
5641 Nuron (http://www.nuron.com/) and is now available in
5642 demos/state_machine.
5645 *) New options added to the 'dgst' utility for signature
5646 generation and verification.
5649 *) Unrecognized PKCS#7 content types are now handled via a
5650 catch all ASN1_TYPE structure. This allows unsupported
5651 types to be stored as a "blob" and an application can
5652 encode and decode it manually.
5655 *) Fix various signed/unsigned issues to make a_strex.c
5657 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5659 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5660 length if passed a buffer. ASN1_INTEGER_to_BN failed
5661 if passed a NULL BN and its argument was negative.
5662 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5664 *) Modification to PKCS#7 encoding routines to output definite
5665 length encoding. Since currently the whole structures are in
5666 memory there's not real point in using indefinite length
5667 constructed encoding. However if OpenSSL is compiled with
5668 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5671 *) Added BIO_vprintf() and BIO_vsnprintf().
5674 *) Added more prefixes to parse for in the the strings written
5675 through a logging bio, to cover all the levels that are available
5676 through syslog. The prefixes are now:
5678 PANIC, EMERG, EMR => LOG_EMERG
5679 ALERT, ALR => LOG_ALERT
5680 CRIT, CRI => LOG_CRIT
5681 ERROR, ERR => LOG_ERR
5682 WARNING, WARN, WAR => LOG_WARNING
5683 NOTICE, NOTE, NOT => LOG_NOTICE
5684 INFO, INF => LOG_INFO
5685 DEBUG, DBG => LOG_DEBUG
5687 and as before, if none of those prefixes are present at the
5688 beginning of the string, LOG_ERR is chosen.
5690 On Win32, the LOG_* levels are mapped according to this:
5692 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5693 LOG_WARNING => EVENTLOG_WARNING_TYPE
5694 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5698 *) Made it possible to reconfigure with just the configuration
5699 argument "reconf" or "reconfigure". The command line arguments
5700 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5701 and are retrieved from there when reconfiguring.
5705 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5707 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5710 *) The obj_dat.pl script was messing up the sorting of object
5711 names. The reason was that it compared the quoted version
5712 of strings as a result "OCSP" > "OCSP Signing" because
5713 " > SPACE. Changed script to store unquoted versions of
5714 names and add quotes on output. It was also omitting some
5715 names from the lookup table if they were given a default
5716 value (that is if SN is missing it is given the same
5717 value as LN and vice versa), these are now added on the
5718 grounds that if an object has a name we should be able to
5719 look it up. Finally added warning output when duplicate
5720 short or long names are found.
5723 *) Changes needed for Tandem NSK.
5724 [Scott Uroff <scott@xypro.com>]
5726 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5727 RSA_padding_check_SSLv23(), special padding was never detected
5728 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5729 version rollback attacks was not effective.
5731 In s23_clnt.c, don't use special rollback-attack detection padding
5732 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5733 client; similarly, in s23_srvr.c, don't do the rollback check if
5734 SSL 2.0 is the only protocol enabled in the server.
5737 *) Make it possible to get hexdumps of unprintable data with 'openssl
5738 asn1parse'. By implication, the functions ASN1_parse_dump() and
5739 BIO_dump_indent() are added.
5742 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5743 these print out strings and name structures based on various
5744 flags including RFC2253 support and proper handling of
5745 multibyte characters. Added options to the 'x509' utility
5746 to allow the various flags to be set.
5749 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5750 Also change the functions X509_cmp_current_time() and
5751 X509_gmtime_adj() work with an ASN1_TIME structure,
5752 this will enable certificates using GeneralizedTime in validity
5753 dates to be checked.
5756 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5757 negative public key encodings) on by default,
5758 NO_NEG_PUBKEY_BUG can be set to disable it.
5761 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5762 content octets. An i2c_ASN1_OBJECT is unnecessary because
5763 the encoding can be trivially obtained from the structure.
5766 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5767 not read locks (CRYPTO_r_[un]lock).
5770 *) A first attempt at creating official support for shared
5771 libraries through configuration. I've kept it so the
5772 default is static libraries only, and the OpenSSL programs
5773 are always statically linked for now, but there are
5774 preparations for dynamic linking in place.
5775 This has been tested on Linux and Tru64.
5778 *) Randomness polling function for Win9x, as described in:
5779 Peter Gutmann, Software Generation of Practically Strong
5783 *) Fix so PRNG is seeded in req if using an already existing
5787 *) New options to smime application. -inform and -outform
5788 allow alternative formats for the S/MIME message including
5789 PEM and DER. The -content option allows the content to be
5790 specified separately. This should allow things like Netscape
5791 form signing output easier to verify.
5794 *) Fix the ASN1 encoding of tags using the 'long form'.
5797 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5798 STRING types. These convert content octets to and from the
5799 underlying type. The actual tag and length octets are
5800 already assumed to have been read in and checked. These
5801 are needed because all other string types have virtually
5802 identical handling apart from the tag. By having versions
5803 of the ASN1 functions that just operate on content octets
5804 IMPLICIT tagging can be handled properly. It also allows
5805 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5806 and ASN1_INTEGER are identical apart from the tag.
5809 *) Change the handling of OID objects as follows:
5811 - New object identifiers are inserted in objects.txt, following
5812 the syntax given in objects.README.
5813 - objects.pl is used to process obj_mac.num and create a new
5815 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5818 This is currently kind of a hack, and the perl code in objects.pl
5819 isn't very elegant, but it works as I intended. The simplest way
5820 to check that it worked correctly is to look in obj_dat.h and
5821 check the array nid_objs and make sure the objects haven't moved
5822 around (this is important!). Additions are OK, as well as
5823 consistent name changes.
5826 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5829 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5830 The given file adds to whatever has already been seeded into the
5831 random pool through the RANDFILE configuration file option or
5832 environment variable, or the default random state file.
5835 *) mkstack.pl now sorts each macro group into lexical order.
5836 Previously the output order depended on the order the files
5837 appeared in the directory, resulting in needless rewriting
5841 *) Patches to make OpenSSL compile under Win32 again. Mostly
5842 work arounds for the VC++ problem that it treats func() as
5843 func(void). Also stripped out the parts of mkdef.pl that
5844 added extra typesafe functions: these no longer exist.
5847 *) Reorganisation of the stack code. The macros are now all
5848 collected in safestack.h . Each macro is defined in terms of
5849 a "stack macro" of the form SKM_<name>(type, a, b). The
5850 DEBUG_SAFESTACK is now handled in terms of function casts,
5851 this has the advantage of retaining type safety without the
5852 use of additional functions. If DEBUG_SAFESTACK is not defined
5853 then the non typesafe macros are used instead. Also modified the
5854 mkstack.pl script to handle the new form. Needs testing to see
5855 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5856 the default if no major problems. Similar behaviour for ASN1_SET_OF
5857 and PKCS12_STACK_OF.
5860 *) When some versions of IIS use the 'NET' form of private key the
5861 key derivation algorithm is different. Normally MD5(password) is
5862 used as a 128 bit RC4 key. In the modified case
5863 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5864 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5865 as the old Netscape_RSA functions except they have an additional
5866 'sgckey' parameter which uses the modified algorithm. Also added
5867 an -sgckey command line option to the rsa utility. Thanks to
5868 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5869 algorithm to openssl-dev.
5872 *) The evp_local.h macros were using 'c.##kname' which resulted in
5873 invalid expansion on some systems (SCO 5.0.5 for example).
5874 Corrected to 'c.kname'.
5875 [Phillip Porch <root@theporch.com>]
5877 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5878 a STACK of email addresses from a certificate or request, these look
5879 in the subject name and the subject alternative name extensions and
5880 omit any duplicate addresses.
5883 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5884 This makes DSA verification about 2 % faster.
5887 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5888 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5889 plus overhead for 1024 bit moduli).
5890 This makes exponentiations about 0.5 % faster for 1024 bit
5891 exponents (as measured by "openssl speed rsa2048").
5894 *) Rename memory handling macros to avoid conflicts with other
5896 Malloc => OPENSSL_malloc
5897 Malloc_locked => OPENSSL_malloc_locked
5898 Realloc => OPENSSL_realloc
5899 Free => OPENSSL_free
5902 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5903 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5906 *) CygWin32 support.
5907 [John Jarvie <jjarvie@newsguy.com>]
5909 *) The type-safe stack code has been rejigged. It is now only compiled
5910 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5911 by default all type-specific stack functions are "#define"d back to
5912 standard stack functions. This results in more streamlined output
5913 but retains the type-safety checking possibilities of the original
5917 *) The STACK code has been cleaned up, and certain type declarations
5918 that didn't make a lot of sense have been brought in line. This has
5919 also involved a cleanup of sorts in safestack.h to more correctly
5920 map type-safe stack functions onto their plain stack counterparts.
5921 This work has also resulted in a variety of "const"ifications of
5922 lots of the code, especially "_cmp" operations which should normally
5923 be prototyped with "const" parameters anyway.
5926 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5927 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5928 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5929 where all of 'md' is used each time the PRNG is used, but 'state'
5930 is used only indexed by a cyclic counter. As entropy may not be
5931 well distributed from the beginning, 'md' is important as a
5932 chaining variable. However, the output function chains only half
5933 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5934 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5935 in all of 'state' being rewritten, with the new values depending
5936 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5939 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5940 the handshake is continued after ssl_verify_cert_chain();
5941 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5942 can lead to 'unexplainable' connection aborts later.
5943 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5945 *) Major EVP API cipher revision.
5946 Add hooks for extra EVP features. This allows various cipher
5947 parameters to be set in the EVP interface. Support added for variable
5948 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5949 setting of RC2 and RC5 parameters.
5951 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5954 Remove lots of duplicated code from the EVP library. For example *every*
5955 cipher init() function handles the 'iv' in the same way according to the
5956 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5957 for CFB and OFB modes they zero ctx->num.
5959 New functionality allows removal of S/MIME code RC2 hack.
5961 Most of the routines have the same form and so can be declared in terms
5964 By shifting this to the top level EVP_CipherInit() it can be removed from
5965 all individual ciphers. If the cipher wants to handle IVs or keys
5966 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5969 Change lots of functions like EVP_EncryptUpdate() to now return a
5970 value: although software versions of the algorithms cannot fail
5971 any installed hardware versions can.
5974 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5975 this option is set, tolerate broken clients that send the negotiated
5976 protocol version number instead of the requested protocol version
5980 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5981 i.e. non-zero for export ciphersuites, zero otherwise.
5982 Previous versions had this flag inverted, inconsistent with
5983 rsa_tmp_cb (..._TMP_RSA_CB).
5984 [Bodo Moeller; problem reported by Amit Chopra]
5986 *) Add missing DSA library text string. Work around for some IIS
5987 key files with invalid SEQUENCE encoding.
5990 *) Add a document (doc/standards.txt) that list all kinds of standards
5991 and so on that are implemented in OpenSSL.
5994 *) Enhance c_rehash script. Old version would mishandle certificates
5995 with the same subject name hash and wouldn't handle CRLs at all.
5996 Added -fingerprint option to crl utility, to support new c_rehash
6000 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6003 *) Fix for SSL server purpose checking. Server checking was
6004 rejecting certificates which had extended key usage present
6005 but no ssl client purpose.
6006 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6008 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6009 is a little unclear about how a blank password is handled.
6010 Since the password in encoded as a BMPString with terminating
6011 double NULL a zero length password would end up as just the
6012 double NULL. However no password at all is different and is
6013 handled differently in the PKCS#12 key generation code. NS
6014 treats a blank password as zero length. MSIE treats it as no
6015 password on export: but it will try both on import. We now do
6016 the same: PKCS12_parse() tries zero length and no password if
6017 the password is set to "" or NULL (NULL is now a valid password:
6018 it wasn't before) as does the pkcs12 application.
6021 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6022 perror when PEM_read_bio_X509_REQ fails, the error message must
6023 be obtained from the error queue.
6026 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6027 it in ERR_remove_state if appropriate, and change ERR_get_state
6028 accordingly to avoid race conditions (this is necessary because
6029 thread_hash is no longer constant once set).
6032 *) Bugfix for linux-elf makefile.one.
6035 *) RSA_get_default_method() will now cause a default
6036 RSA_METHOD to be chosen if one doesn't exist already.
6037 Previously this was only set during a call to RSA_new()
6038 or RSA_new_method(NULL) meaning it was possible for
6039 RSA_get_default_method() to return NULL.
6042 *) Added native name translation to the existing DSO code
6043 that will convert (if the flag to do so is set) filenames
6044 that are sufficiently small and have no path information
6045 into a canonical native form. Eg. "blah" converted to
6046 "libblah.so" or "blah.dll" etc.
6049 *) New function ERR_error_string_n(e, buf, len) which is like
6050 ERR_error_string(e, buf), but writes at most 'len' bytes
6051 including the 0 terminator. For ERR_error_string_n, 'buf'
6053 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6055 *) CONF library reworked to become more general. A new CONF
6056 configuration file reader "class" is implemented as well as a
6057 new functions (NCONF_*, for "New CONF") to handle it. The now
6058 old CONF_* functions are still there, but are reimplemented to
6059 work in terms of the new functions. Also, a set of functions
6060 to handle the internal storage of the configuration data is
6061 provided to make it easier to write new configuration file
6062 reader "classes" (I can definitely see something reading a
6063 configuration file in XML format, for example), called _CONF_*,
6064 or "the configuration storage API"...
6066 The new configuration file reading functions are:
6068 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6069 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6071 NCONF_default, NCONF_WIN32
6073 NCONF_dump_fp, NCONF_dump_bio
6075 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6076 NCONF_new creates a new CONF object. This works in the same way
6077 as other interfaces in OpenSSL, like the BIO interface.
6078 NCONF_dump_* dump the internal storage of the configuration file,
6079 which is useful for debugging. All other functions take the same
6080 arguments as the old CONF_* functions wth the exception of the
6081 first that must be a `CONF *' instead of a `LHASH *'.
6083 To make it easer to use the new classes with the old CONF_* functions,
6084 the function CONF_set_default_method is provided.
6087 *) Add '-tls1' option to 'openssl ciphers', which was already
6088 mentioned in the documentation but had not been implemented.
6089 (This option is not yet really useful because even the additional
6090 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6093 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6094 OpenSSL-based applications) load shared libraries and bind to
6095 them in a portable way.
6096 [Geoff Thorpe, with contributions from Richard Levitte]
6098 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6100 *) Make sure _lrotl and _lrotr are only used with MSVC.
6102 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6103 (the default implementation of RAND_status).
6105 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6106 to '-clrext' (= clear extensions), as intended and documented.
6107 [Bodo Moeller; inconsistency pointed out by Michael Attili
6110 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6111 was larger than the MD block size.
6112 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6114 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6115 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6116 using the passed key: if the passed key was a private key the result
6117 of X509_print(), for example, would be to print out all the private key
6121 *) des_quad_cksum() byte order bug fix.
6122 [Ulf Möller, using the problem description in krb4-0.9.7, where
6123 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6125 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6127 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6129 *) For easily testing in shell scripts whether some command
6130 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6131 returns with exit code 0 iff no command of the given name is available.
6132 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6133 the output goes to stdout and nothing is printed to stderr.
6134 Additional arguments are always ignored.
6136 Since for each cipher there is a command of the same name,
6137 the 'no-cipher' compilation switches can be tested this way.
6139 ('openssl no-XXX' is not able to detect pseudo-commands such
6140 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6143 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6146 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6147 is set; it will be thrown away anyway because each handshake creates
6149 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6150 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6151 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6152 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6155 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6156 'Q' and 'R' lose their special meanings (quit/renegotiate).
6157 This is part of what -quiet does; unlike -quiet, -ign_eof
6158 does not suppress any output.
6161 *) Add compatibility options to the purpose and trust code. The
6162 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6163 accepts a certificate or CA, this was the previous behaviour,
6164 with all the associated security issues.
6166 X509_TRUST_COMPAT is the old trust behaviour: only and
6167 automatically trust self signed roots in certificate store. A
6168 new trust setting X509_TRUST_DEFAULT is used to specify that
6169 a purpose has no associated trust setting and it should instead
6170 use the value in the default purpose.
6173 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6174 and fix a memory leak.
6177 *) In util/mkerr.pl (which implements 'make errors'), preserve
6178 reason strings from the previous version of the .c file, as
6179 the default to have only downcase letters (and digits) in
6180 automatically generated reasons codes is not always appropriate.
6183 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6184 using strerror. Previously, ERR_reason_error_string() returned
6185 library names as reason strings for SYSerr; but SYSerr is a special
6186 case where small numbers are errno values, not library numbers.
6189 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6190 converts DSA parameters into DH parameters. (When creating parameters,
6191 DSA_generate_parameters is used.)
6194 *) Include 'length' (recommended exponent length) in C code generated
6195 by 'openssl dhparam -C'.
6198 *) The second argument to set_label in perlasm was already being used
6199 so couldn't be used as a "file scope" flag. Moved to third argument
6203 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6204 instead of RAND_bytes for encryption IVs and salts.
6207 *) Include RAND_status() into RAND_METHOD instead of implementing
6208 it only for md_rand.c Otherwise replacing the PRNG by calling
6209 RAND_set_rand_method would be impossible.
6212 *) Don't let DSA_generate_key() enter an infinite loop if the random
6213 number generation fails.
6216 *) New 'rand' application for creating pseudo-random output.
6219 *) Added configuration support for Linux/IA64
6220 [Rolf Haberrecker <rolf@suse.de>]
6222 *) Assembler module support for Mingw32.
6225 *) Shared library support for HPUX (in shlib/).
6226 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6228 *) Shared library support for Solaris gcc.
6229 [Lutz Behnke <behnke@trustcenter.de>]
6231 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6233 *) PKCS7_encrypt() was adding text MIME headers twice because they
6234 were added manually and by SMIME_crlf_copy().
6237 *) In bntest.c don't call BN_rand with zero bits argument.
6238 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6240 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6241 case was implemented. This caused BN_div_recp() to fail occasionally.
6244 *) Add an optional second argument to the set_label() in the perl
6245 assembly language builder. If this argument exists and is set
6246 to 1 it signals that the assembler should use a symbol whose
6247 scope is the entire file, not just the current function. This
6248 is needed with MASM which uses the format label:: for this scope.
6249 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6251 *) Change the ASN1 types so they are typedefs by default. Before
6252 almost all types were #define'd to ASN1_STRING which was causing
6253 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6257 *) Change names of new functions to the new get1/get0 naming
6258 convention: After 'get1', the caller owns a reference count
6259 and has to call ..._free; 'get0' returns a pointer to some
6260 data structure without incrementing reference counters.
6261 (Some of the existing 'get' functions increment a reference
6262 counter, some don't.)
6263 Similarly, 'set1' and 'add1' functions increase reference
6264 counters or duplicate objects.
6267 *) Allow for the possibility of temp RSA key generation failure:
6268 the code used to assume it always worked and crashed on failure.
6271 *) Fix potential buffer overrun problem in BIO_printf().
6272 [Ulf Möller, using public domain code by Patrick Powell; problem
6273 pointed out by David Sacerdote <das33@cornell.edu>]
6275 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6276 RAND_egd() and RAND_status(). In the command line application,
6277 the EGD socket can be specified like a seed file using RANDFILE
6281 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6282 Some CAs (e.g. Verisign) distribute certificates in this form.
6285 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6286 list to exclude them. This means that no special compilation option
6287 is needed to use anonymous DH: it just needs to be included in the
6291 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6292 EVP_MD_type. The old functionality is available in a new macro called
6293 EVP_MD_md(). Change code that uses it and update docs.
6296 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6297 where the 'void *' argument is replaced by a function pointer argument.
6298 Previously 'void *' was abused to point to functions, which works on
6299 many platforms, but is not correct. As these functions are usually
6300 called by macros defined in OpenSSL header files, most source code
6301 should work without changes.
6304 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6305 sections with information on -D... compiler switches used for
6306 compiling the library so that applications can see them. To enable
6307 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6308 must be defined. E.g.,
6309 #define OPENSSL_ALGORITHM_DEFINES
6310 #include <openssl/opensslconf.h>
6311 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6312 [Richard Levitte, Ulf and Bodo Möller]
6314 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6318 *) Change the 'other' type in certificate aux info to a STACK_OF
6319 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6320 the required ASN1 format: arbitrary types determined by an OID.
6323 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6324 argument to 'req'. This is not because the function is newer or
6325 better than others it just uses the work 'NEW' in the certificate
6326 request header lines. Some software needs this.
6329 *) Reorganise password command line arguments: now passwords can be
6330 obtained from various sources. Delete the PEM_cb function and make
6331 it the default behaviour: i.e. if the callback is NULL and the
6332 usrdata argument is not NULL interpret it as a null terminated pass
6333 phrase. If usrdata and the callback are NULL then the pass phrase
6334 is prompted for as usual.
6337 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6338 the support is automatically enabled. The resulting binaries will
6339 autodetect the card and use it if present.
6340 [Ben Laurie and Compaq Inc.]
6342 *) Work around for Netscape hang bug. This sends certificate request
6343 and server done in one record. Since this is perfectly legal in the
6344 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6345 the bugs/SSLv3 entry for more info.
6348 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6351 *) Add -rand argument to smime and pkcs12 applications and read/write
6355 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6358 *) Add command line password options to the remaining applications.
6361 *) Bug fix for BN_div_recp() for numerators with an even number of
6365 *) More tests in bntest.c, and changed test_bn output.
6368 *) ./config recognizes MacOS X now.
6371 *) Bug fix for BN_div() when the first words of num and divsor are
6372 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6375 *) Add support for various broken PKCS#8 formats, and command line
6376 options to produce them.
6379 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6380 get temporary BIGNUMs from a BN_CTX.
6383 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6387 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6388 include a #define from the old name to the new. The original intent
6389 was that statically linked binaries could for example just call
6390 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6391 link with digests. This never worked becayse SSLeay_add_all_digests()
6392 and SSLeay_add_all_ciphers() were in the same source file so calling
6393 one would link with the other. They are now in separate source files.
6396 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6399 *) Use a less unusual form of the Miller-Rabin primality test (it used
6400 a binary algorithm for exponentiation integrated into the Miller-Rabin
6401 loop, our standard modexp algorithms are faster).
6404 *) Support for the EBCDIC character set completed.
6405 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6407 *) Source code cleanups: use const where appropriate, eliminate casts,
6408 use void * instead of char * in lhash.
6411 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6412 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6413 this the server could overwrite ephemeral keys that the client
6417 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6418 using 50 iterations of the Rabin-Miller test.
6420 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6421 iterations of the Rabin-Miller test as required by the appendix
6422 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6423 As BN_is_prime_fasttest includes trial division, DSA parameter
6424 generation becomes much faster.
6426 This implies a change for the callback functions in DSA_is_prime
6427 and DSA_generate_parameters: The callback function is called once
6428 for each positive witness in the Rabin-Miller test, not just
6429 occasionally in the inner loop; and the parameters to the
6430 callback function now provide an iteration count for the outer
6431 loop rather than for the current invocation of the inner loop.
6432 DSA_generate_parameters additionally can call the callback
6433 function with an 'iteration count' of -1, meaning that a
6434 candidate has passed the trial division test (when q is generated
6435 from an application-provided seed, trial division is skipped).
6438 *) New function BN_is_prime_fasttest that optionally does trial
6439 division before starting the Rabin-Miller test and has
6440 an additional BN_CTX * argument (whereas BN_is_prime always
6441 has to allocate at least one BN_CTX).
6442 'callback(1, -1, cb_arg)' is called when a number has passed the
6443 trial division stage.
6446 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6450 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6453 *) New function BN_pseudo_rand().
6456 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6457 bignum version of BN_from_montgomery() with the working code from
6458 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6462 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6463 made it impossible to use the same SSL_SESSION data structure in
6464 SSL2 clients in multiple threads.
6467 *) The return value of RAND_load_file() no longer counts bytes obtained
6468 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6469 to seed the PRNG (previously an explicit byte count was required).
6470 [Ulf Möller, Bodo Möller]
6472 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6473 used (char *) instead of (void *) and had casts all over the place.
6476 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6479 *) Retain source code compatibility for BN_prime_checks macro:
6480 BN_is_prime(..., BN_prime_checks, ...) now uses
6481 BN_prime_checks_for_size to determine the appropriate number of
6482 Rabin-Miller iterations.
6485 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6486 DH_CHECK_P_NOT_SAFE_PRIME.
6487 (Check if this is true? OpenPGP calls them "strong".)
6490 *) Merge the functionality of "dh" and "gendh" programs into a new program
6491 "dhparam". The old programs are retained for now but will handle DH keys
6492 (instead of parameters) in future.
6495 *) Make the ciphers, s_server and s_client programs check the return values
6496 when a new cipher list is set.
6499 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6500 ciphers. Before when the 56bit ciphers were enabled the sorting was
6503 The syntax for the cipher sorting has been extended to support sorting by
6504 cipher-strength (using the strength_bits hard coded in the tables).
6505 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6507 Fix a bug in the cipher-command parser: when supplying a cipher command
6508 string with an "undefined" symbol (neither command nor alphanumeric
6509 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6510 an error is flagged.
6512 Due to the strength-sorting extension, the code of the
6513 ssl_create_cipher_list() function was completely rearranged. I hope that
6514 the readability was also increased :-)
6515 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6517 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6518 for the first serial number and places 2 in the serial number file. This
6519 avoids problems when the root CA is created with serial number zero and
6520 the first user certificate has the same issuer name and serial number
6524 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6525 the new code. Add documentation for this stuff.
6528 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6529 X509_*() to X509at_*() on the grounds that they don't handle X509
6530 structures and behave in an analagous way to the X509v3 functions:
6531 they shouldn't be called directly but wrapper functions should be used
6534 So we also now have some wrapper functions that call the X509at functions
6535 when passed certificate requests. (TO DO: similar things can be done with
6536 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6537 things. Some of these need some d2i or i2d and print functionality
6538 because they handle more complex structures.)
6541 *) Add missing #ifndefs that caused missing symbols when building libssl
6542 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6543 NO_RSA in ssl/s2*.c.
6544 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6546 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6547 has a return value which indicates the quality of the random data
6548 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6549 error queue. New function RAND_pseudo_bytes() generates output that is
6550 guaranteed to be unique but not unpredictable. RAND_add is like
6551 RAND_seed, but takes an extra argument for an entropy estimate
6552 (RAND_seed always assumes full entropy).
6555 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6556 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6557 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6558 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6559 false-positive rate of at most 2^-80 for random input.
6562 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6565 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6566 in the 0.9.5 release), this returns the chain
6567 from an X509_CTX structure with a dup of the stack and all
6568 the X509 reference counts upped: so the stack will exist
6569 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6572 Also make SSL_SESSION_print() print out the verify return
6576 *) Add manpage for the pkcs12 command. Also change the default
6577 behaviour so MAC iteration counts are used unless the new
6578 -nomaciter option is used. This improves file security and
6579 only older versions of MSIE (4.0 for example) need it.
6582 *) Honor the no-xxx Configure options when creating .DEF files.
6585 *) Add PKCS#10 attributes to field table: challengePassword,
6586 unstructuredName and unstructuredAddress. These are taken from
6587 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6588 international characters are used.
6590 More changes to X509_ATTRIBUTE code: allow the setting of types
6591 based on strings. Remove the 'loc' parameter when adding
6592 attributes because these will be a SET OF encoding which is sorted
6596 *) Initial changes to the 'req' utility to allow request generation
6597 automation. This will allow an application to just generate a template
6598 file containing all the field values and have req construct the
6601 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6602 used all over the place including certificate requests and PKCS#7
6603 structures. They are currently handled manually where necessary with
6604 some primitive wrappers for PKCS#7. The new functions behave in a
6605 manner analogous to the X509 extension functions: they allow
6606 attributes to be looked up by NID and added.
6608 Later something similar to the X509V3 code would be desirable to
6609 automatically handle the encoding, decoding and printing of the
6610 more complex types. The string types like challengePassword can
6611 be handled by the string table functions.
6613 Also modified the multi byte string table handling. Now there is
6614 a 'global mask' which masks out certain types. The table itself
6615 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6616 is useful when for example there is only one permissible type
6617 (as in countryName) and using the mask might result in no valid
6621 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6622 SSL_get_peer_finished to allow applications to obtain the latest
6623 Finished messages sent to the peer or expected from the peer,
6624 respectively. (SSL_get_peer_finished is usually the Finished message
6625 actually received from the peer, otherwise the protocol will be aborted.)
6627 As the Finished message are message digests of the complete handshake
6628 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6629 be used for external authentication procedures when the authentication
6630 provided by SSL/TLS is not desired or is not enough.
6633 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6634 the host supports BWX extension and if Compaq C is present on the
6635 $PATH. Just exploiting of the BWX extension results in 20-30%
6636 performance kick for some algorithms, e.g. DES and RC4 to mention
6637 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6641 *) Add support for MS "fast SGC". This is arguably a violation of the
6642 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6643 weak crypto and after checking the certificate is SGC a second one
6644 with strong crypto. MS SGC stops the first handshake after receiving
6645 the server certificate message and sends a second client hello. Since
6646 a server will typically do all the time consuming operations before
6647 expecting any further messages from the client (server key exchange
6648 is the most expensive) there is little difference between the two.
6650 To get OpenSSL to support MS SGC we have to permit a second client
6651 hello message after we have sent server done. In addition we have to
6652 reset the MAC if we do get this second client hello.
6655 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6656 if a DER encoded private key is RSA or DSA traditional format. Changed
6657 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6658 format DER encoded private key. Newer code should use PKCS#8 format which
6659 has the key type encoded in the ASN1 structure. Added DER private key
6660 support to pkcs8 application.
6663 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6664 ciphersuites has been selected (as required by the SSL 3/TLS 1
6665 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6666 is set, we interpret this as a request to violate the specification
6667 (the worst that can happen is a handshake failure, and 'correct'
6668 behaviour would result in a handshake failure anyway).
6671 *) In SSL_CTX_add_session, take into account that there might be multiple
6672 SSL_SESSION structures with the same session ID (e.g. when two threads
6673 concurrently obtain them from an external cache).
6674 The internal cache can handle only one SSL_SESSION with a given ID,
6675 so if there's a conflict, we now throw out the old one to achieve
6679 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6680 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6681 some routines that use cipher OIDs: some ciphers do not have OIDs
6682 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6686 *) Simplify the trust setting structure and code. Now we just have
6687 two sequences of OIDs for trusted and rejected settings. These will
6688 typically have values the same as the extended key usage extension
6689 and any application specific purposes.
6691 The trust checking code now has a default behaviour: it will just
6692 check for an object with the same NID as the passed id. Functions can
6693 be provided to override either the default behaviour or the behaviour
6694 for a given id. SSL client, server and email already have functions
6695 in place for compatibility: they check the NID and also return "trusted"
6696 if the certificate is self signed.
6699 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6700 traditional format into an EVP_PKEY structure.
6703 *) Add a password callback function PEM_cb() which either prompts for
6704 a password if usr_data is NULL or otherwise assumes it is a null
6705 terminated password. Allow passwords to be passed on command line
6706 environment or config files in a few more utilities.
6709 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6710 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6711 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6712 Update documentation.
6715 *) Support for ASN1 "NULL" type. This could be handled before by using
6716 ASN1_TYPE but there wasn't any function that would try to read a NULL
6717 and produce an error if it couldn't. For compatibility we also have
6718 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6719 don't allocate anything because they don't need to.
6722 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6724 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6726 *) Rebuild of the memory allocation routines used by OpenSSL code and
6727 possibly others as well. The purpose is to make an interface that
6728 provide hooks so anyone can build a separate set of allocation and
6729 deallocation routines to be used by OpenSSL, for example memory
6730 pool implementations, or something else, which was previously hard
6731 since Malloc(), Realloc() and Free() were defined as macros having
6732 the values malloc, realloc and free, respectively (except for Win32
6733 compilations). The same is provided for memory debugging code.
6734 OpenSSL already comes with functionality to find memory leaks, but
6735 this gives people a chance to debug other memory problems.
6737 With these changes, a new set of functions and macros have appeared:
6739 CRYPTO_set_mem_debug_functions() [F]
6740 CRYPTO_get_mem_debug_functions() [F]
6741 CRYPTO_dbg_set_options() [F]
6742 CRYPTO_dbg_get_options() [F]
6743 CRYPTO_malloc_debug_init() [M]
6745 The memory debug functions are NULL by default, unless the library
6746 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6747 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6748 gives the standard debugging functions that come with OpenSSL) or
6749 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6750 provided by the library user) must be used. When the standard
6751 debugging functions are used, CRYPTO_dbg_set_options can be used to
6752 request additional information:
6753 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6754 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6756 Also, things like CRYPTO_set_mem_functions will always give the
6757 expected result (the new set of functions is used for allocation
6758 and deallocation) at all times, regardless of platform and compiler
6761 To finish it up, some functions that were never use in any other
6762 way than through macros have a new API and new semantic:
6765 CRYPTO_dbg_realloc()
6768 All macros of value have retained their old syntax.
6769 [Richard Levitte and Bodo Moeller]
6771 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6772 ordering of SMIMECapabilities wasn't in "strength order" and there
6773 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6777 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6778 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6779 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6781 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6782 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6783 functionality to handle multipart/signed properly) and a utility
6784 called 'smime' to call all this stuff. This is based on code I
6785 originally wrote for Celo who have kindly allowed it to be
6786 included in OpenSSL.
6789 *) Add variants des_set_key_checked and des_set_key_unchecked of
6790 des_set_key (aka des_key_sched). Global variable des_check_key
6791 decides which of these is called by des_set_key; this way
6792 des_check_key behaves as it always did, but applications and
6793 the library itself, which was buggy for des_check_key == 1,
6794 have a cleaner way to pick the version they need.
6797 *) New function PKCS12_newpass() which changes the password of a
6801 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6802 dynamic mix. In both cases the ids can be used as an index into the
6803 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6804 functions so they accept a list of the field values and the
6805 application doesn't need to directly manipulate the X509_TRUST
6809 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6813 *) Modify the way the V3 extension code looks up extensions. This now
6814 works in a similar way to the object code: we have some "standard"
6815 extensions in a static table which is searched with OBJ_bsearch()
6816 and the application can add dynamic ones if needed. The file
6817 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6818 updated whenever a new extension is added to the core code and kept
6819 in ext_nid order. There is a simple program 'tabtest.c' which checks
6820 this. New extensions are not added too often so this file can readily
6821 be maintained manually.
6823 There are two big advantages in doing things this way. The extensions
6824 can be looked up immediately and no longer need to be "added" using
6825 X509V3_add_standard_extensions(): this function now does nothing.
6826 [Side note: I get *lots* of email saying the extension code doesn't
6827 work because people forget to call this function]
6828 Also no dynamic allocation is done unless new extensions are added:
6829 so if we don't add custom extensions there is no need to call
6830 X509V3_EXT_cleanup().
6833 *) Modify enc utility's salting as follows: make salting the default. Add a
6834 magic header, so unsalted files fail gracefully instead of just decrypting
6835 to garbage. This is because not salting is a big security hole, so people
6836 should be discouraged from doing it.
6839 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6840 digest to be passed on the command line but it only used this
6841 parameter when signing a certificate. Modified so all relevant
6842 operations are affected by the digest parameter including the
6843 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6844 DSA key was used because it didn't fix the digest.
6847 *) Initial certificate chain verify code. Currently tests the untrusted
6848 certificates for consistency with the verify purpose (which is set
6849 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6851 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6852 this is because it will reject chains with invalid extensions whereas
6853 every previous version of OpenSSL and SSLeay made no checks at all.
6855 Trust code: checks the root CA for the relevant trust settings. Trust
6856 settings have an initial value consistent with the verify purpose: e.g.
6857 if the verify purpose is for SSL client use it expects the CA to be
6858 trusted for SSL client use. However the default value can be changed to
6859 permit custom trust settings: one example of this would be to only trust
6860 certificates from a specific "secure" set of CAs.
6862 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6863 which should be used for version portability: especially since the
6864 verify structure is likely to change more often now.
6866 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6867 to set them. If not set then assume SSL clients will verify SSL servers
6870 Two new options to the verify program: -untrusted allows a set of
6871 untrusted certificates to be passed in and -purpose which sets the
6872 intended purpose of the certificate. If a purpose is set then the
6873 new chain verify code is used to check extension consistency.
6876 *) Support for the authority information access extension.
6879 *) Modify RSA and DSA PEM read routines to transparently handle
6880 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6881 public keys in a format compatible with certificate
6882 SubjectPublicKeyInfo structures. Unfortunately there were already
6883 functions called *_PublicKey_* which used various odd formats so
6884 these are retained for compatibility: however the DSA variants were
6885 never in a public release so they have been deleted. Changed dsa/rsa
6886 utilities to handle the new format: note no releases ever handled public
6887 keys so we should be OK.
6889 The primary motivation for this change is to avoid the same fiasco
6890 that dogs private keys: there are several incompatible private key
6891 formats some of which are standard and some OpenSSL specific and
6892 require various evil hacks to allow partial transparent handling and
6893 even then it doesn't work with DER formats. Given the option anything
6894 other than PKCS#8 should be dumped: but the other formats have to
6895 stay in the name of compatibility.
6897 With public keys and the benefit of hindsight one standard format
6898 is used which works with EVP_PKEY, RSA or DSA structures: though
6899 it clearly returns an error if you try to read the wrong kind of key.
6901 Added a -pubkey option to the 'x509' utility to output the public key.
6902 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6903 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6904 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6905 that do the same as the EVP_PKEY_assign_*() except they up the
6906 reference count of the added key (they don't "swallow" the
6910 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6911 CRLs would fail if the file contained no certificates or no CRLs:
6912 added a new function to read in both types and return the number
6913 read: this means that if none are read it will be an error. The
6914 DER versions of the certificate and CRL reader would always fail
6915 because it isn't possible to mix certificates and CRLs in DER format
6916 without choking one or the other routine. Changed this to just read
6917 a certificate: this is the best we can do. Also modified the code
6918 in apps/verify.c to take notice of return codes: it was previously
6919 attempting to read in certificates from NULL pointers and ignoring
6920 any errors: this is one reason why the cert and CRL reader seemed
6921 to work. It doesn't check return codes from the default certificate
6922 routines: these may well fail if the certificates aren't installed.
6925 *) Code to support otherName option in GeneralName.
6928 *) First update to verify code. Change the verify utility
6929 so it warns if it is passed a self signed certificate:
6930 for consistency with the normal behaviour. X509_verify
6931 has been modified to it will now verify a self signed
6932 certificate if *exactly* the same certificate appears
6933 in the store: it was previously impossible to trust a
6934 single self signed certificate. This means that:
6935 openssl verify ss.pem
6936 now gives a warning about a self signed certificate but
6937 openssl verify -CAfile ss.pem ss.pem
6941 *) For servers, store verify_result in SSL_SESSION data structure
6942 (and add it to external session representation).
6943 This is needed when client certificate verifications fails,
6944 but an application-provided verification callback (set by
6945 SSL_CTX_set_cert_verify_callback) allows accepting the session
6946 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6947 but returns 1): When the session is reused, we have to set
6948 ssl->verify_result to the appropriate error code to avoid
6950 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6952 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6953 case in PKCS7_dataInit() where the signed PKCS7 structure
6954 didn't contain any existing data because it was being created.
6955 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6957 *) Add a salt to the key derivation routines in enc.c. This
6958 forms the first 8 bytes of the encrypted file. Also add a
6959 -S option to allow a salt to be input on the command line.
6962 *) New function X509_cmp(). Oddly enough there wasn't a function
6963 to compare two certificates. We do this by working out the SHA1
6964 hash and comparing that. X509_cmp() will be needed by the trust
6968 *) SSL_get1_session() is like SSL_get_session(), but increments
6969 the reference count in the SSL_SESSION returned.
6970 [Geoff Thorpe <geoff@eu.c2.net>]
6972 *) Fix for 'req': it was adding a null to request attributes.
6973 Also change the X509_LOOKUP and X509_INFO code to handle
6974 certificate auxiliary information.
6977 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6981 *) Add the possibility to add extra information to the memory leak
6982 detecting output, to form tracebacks, showing from where each
6983 allocation was originated: CRYPTO_push_info("constant string") adds
6984 the string plus current file name and line number to a per-thread
6985 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6986 is like calling CYRPTO_pop_info() until the stack is empty.
6987 Also updated memory leak detection code to be multi-thread-safe.
6990 *) Add options -text and -noout to pkcs7 utility and delete the
6991 encryption options which never did anything. Update docs.
6994 *) Add options to some of the utilities to allow the pass phrase
6995 to be included on either the command line (not recommended on
6996 OSes like Unix) or read from the environment. Update the
6997 manpages and fix a few bugs.
7000 *) Add a few manpages for some of the openssl commands.
7003 *) Fix the -revoke option in ca. It was freeing up memory twice,
7004 leaking and not finding already revoked certificates.
7007 *) Extensive changes to support certificate auxiliary information.
7008 This involves the use of X509_CERT_AUX structure and X509_AUX
7009 functions. An X509_AUX function such as PEM_read_X509_AUX()
7010 can still read in a certificate file in the usual way but it
7011 will also read in any additional "auxiliary information". By
7012 doing things this way a fair degree of compatibility can be
7013 retained: existing certificates can have this information added
7014 using the new 'x509' options.
7016 Current auxiliary information includes an "alias" and some trust
7017 settings. The trust settings will ultimately be used in enhanced
7018 certificate chain verification routines: currently a certificate
7019 can only be trusted if it is self signed and then it is trusted
7023 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7024 The problem was that one of the replacement routines had not been working
7025 since SSLeay releases. For now the offending routine has been replaced
7026 with non-optimised assembler. Even so, this now gives around 95%
7027 performance improvement for 1024 bit RSA signs.
7030 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7031 handling. Most clients have the effective key size in bits equal to
7032 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7033 A few however don't do this and instead use the size of the decrypted key
7034 to determine the RC2 key length and the AlgorithmIdentifier to determine
7035 the effective key length. In this case the effective key length can still
7036 be 40 bits but the key length can be 168 bits for example. This is fixed
7037 by manually forcing an RC2 key into the EVP_PKEY structure because the
7038 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7039 the key length and effective key length are equal.
7042 *) Add a bunch of functions that should simplify the creation of
7043 X509_NAME structures. Now you should be able to do:
7044 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7045 and have it automatically work out the correct field type and fill in
7046 the structures. The more adventurous can try:
7047 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7048 and it will (hopefully) work out the correct multibyte encoding.
7051 *) Change the 'req' utility to use the new field handling and multibyte
7052 copy routines. Before the DN field creation was handled in an ad hoc
7053 way in req, ca, and x509 which was rather broken and didn't support
7054 BMPStrings or UTF8Strings. Since some software doesn't implement
7055 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7056 using the dirstring_type option. See the new comment in the default
7057 openssl.cnf for more info.
7060 *) Make crypto/rand/md_rand.c more robust:
7061 - Assure unique random numbers after fork().
7062 - Make sure that concurrent threads access the global counter and
7063 md serializably so that we never lose entropy in them
7064 or use exactly the same state in multiple threads.
7065 Access to the large state is not always serializable because
7066 the additional locking could be a performance killer, and
7067 md should be large enough anyway.
7070 *) New file apps/app_rand.c with commonly needed functionality
7071 for handling the random seed file.
7073 Use the random seed file in some applications that previously did not:
7075 dsaparam -genkey (which also ignored its '-rand' option),
7078 x509 (when signing).
7079 Except on systems with /dev/urandom, it is crucial to have a random
7080 seed file at least for key creation, DSA signing, and for DH exchanges;
7081 for RSA signatures we could do without one.
7083 gendh and gendsa (unlike genrsa) used to read only the first byte
7084 of each file listed in the '-rand' option. The function as previously
7085 found in genrsa is now in app_rand.c and is used by all programs
7086 that support '-rand'.
7089 *) In RAND_write_file, use mode 0600 for creating files;
7090 don't just chmod when it may be too late.
7093 *) Report an error from X509_STORE_load_locations
7094 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7097 *) New function ASN1_mbstring_copy() this copies a string in either
7098 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7099 into an ASN1_STRING type. A mask of permissible types is passed
7100 and it chooses the "minimal" type to use or an error if not type
7104 *) Add function equivalents to the various macros in asn1.h. The old
7105 macros are retained with an M_ prefix. Code inside the library can
7106 use the M_ macros. External code (including the openssl utility)
7107 should *NOT* in order to be "shared library friendly".
7110 *) Add various functions that can check a certificate's extensions
7111 to see if it usable for various purposes such as SSL client,
7112 server or S/MIME and CAs of these types. This is currently
7113 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7114 verification. Also added a -purpose flag to x509 utility to
7115 print out all the purposes.
7118 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7122 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7123 for, obtain and decode and extension and obtain its critical flag.
7124 This allows all the necessary extension code to be handled in a
7125 single function call.
7128 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7129 platforms. See crypto/rc4/rc4_enc.c for further details.
7132 *) New -noout option to asn1parse. This causes no output to be produced
7133 its main use is when combined with -strparse and -out to extract data
7134 from a file (which may not be in ASN.1 format).
7137 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7138 when producing the local key id.
7139 [Richard Levitte <levitte@stacken.kth.se>]
7141 *) New option -dhparam in s_server. This allows a DH parameter file to be
7142 stated explicitly. If it is not stated then it tries the first server
7143 certificate file. The previous behaviour hard coded the filename
7147 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7148 a public key to be input or output. For example:
7149 openssl rsa -in key.pem -pubout -out pubkey.pem
7150 Also added necessary DSA public key functions to handle this.
7153 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7154 in the message. This was handled by allowing
7155 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7156 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7158 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7159 to the end of the strings whereas this didn't. This would cause problems
7160 if strings read with d2i_ASN1_bytes() were later modified.
7161 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7163 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7164 data and it contains EOF it will end up returning an error. This is
7165 caused by input 46 bytes long. The cause is due to the way base64
7166 BIOs find the start of base64 encoded data. They do this by trying a
7167 trial decode on each line until they find one that works. When they
7168 do a flag is set and it starts again knowing it can pass all the
7169 data directly through the decoder. Unfortunately it doesn't reset
7170 the context it uses. This means that if EOF is reached an attempt
7171 is made to pass two EOFs through the context and this causes the
7172 resulting error. This can also cause other problems as well. As is
7173 usual with these problems it takes *ages* to find and the fix is
7174 trivial: move one line.
7175 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7177 *) Ugly workaround to get s_client and s_server working under Windows. The
7178 old code wouldn't work because it needed to select() on sockets and the
7179 tty (for keypresses and to see if data could be written). Win32 only
7180 supports select() on sockets so we select() with a 1s timeout on the
7181 sockets and then see if any characters are waiting to be read, if none
7182 are present then we retry, we also assume we can always write data to
7183 the tty. This isn't nice because the code then blocks until we've
7184 received a complete line of data and it is effectively polling the
7185 keyboard at 1s intervals: however it's quite a bit better than not
7186 working at all :-) A dedicated Windows application might handle this
7187 with an event loop for example.
7190 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7191 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7192 will be called when RSA_sign() and RSA_verify() are used. This is useful
7193 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7194 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7195 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7196 This necessitated the support of an extra signature type NID_md5_sha1
7197 for SSL signatures and modifications to the SSL library to use it instead
7198 of calling RSA_public_decrypt() and RSA_private_encrypt().
7201 *) Add new -verify -CAfile and -CApath options to the crl program, these
7202 will lookup a CRL issuers certificate and verify the signature in a
7203 similar way to the verify program. Tidy up the crl program so it
7204 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7205 less strict. It will now permit CRL extensions even if it is not
7206 a V2 CRL: this will allow it to tolerate some broken CRLs.
7209 *) Initialize all non-automatic variables each time one of the openssl
7210 sub-programs is started (this is necessary as they may be started
7211 multiple times from the "OpenSSL>" prompt).
7212 [Lennart Bang, Bodo Moeller]
7214 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7215 removing all other RSA functionality (this is what NO_RSA does). This
7216 is so (for example) those in the US can disable those operations covered
7217 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7221 *) Non-copying interface to BIO pairs.
7222 (still largely untested)
7225 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7226 ASCII string. This was handled independently in various places before.
7229 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7230 UTF8 strings a character at a time.
7233 *) Use client_version from client hello to select the protocol
7234 (s23_srvr.c) and for RSA client key exchange verification
7235 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7238 *) Add various utility functions to handle SPKACs, these were previously
7239 handled by poking round in the structure internals. Added new function
7240 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7241 print, verify and generate SPKACs. Based on an original idea from
7242 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7245 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7248 *) Allow the config file extension section to be overwritten on the
7249 command line. Based on an original idea from Massimiliano Pala
7250 <madwolf@comune.modena.it>. The new option is called -extensions
7251 and can be applied to ca, req and x509. Also -reqexts to override
7252 the request extensions in req and -crlexts to override the crl extensions
7256 *) Add new feature to the SPKAC handling in ca. Now you can include
7257 the same field multiple times by preceding it by "XXXX." for example:
7260 this is the same syntax as used in the req config file.
7263 *) Allow certificate extensions to be added to certificate requests. These
7264 are specified in a 'req_extensions' option of the req section of the
7265 config file. They can be printed out with the -text option to req but
7266 are otherwise ignored at present.
7269 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7270 data read consists of only the final block it would not decrypted because
7271 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7272 A misplaced 'break' also meant the decrypted final block might not be
7273 copied until the next read.
7276 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7277 a few extra parameters to the DH structure: these will be useful if
7278 for example we want the value of 'q' or implement X9.42 DH.
7281 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7282 provides hooks that allow the default DSA functions or functions on a
7283 "per key" basis to be replaced. This allows hardware acceleration and
7284 hardware key storage to be handled without major modification to the
7285 library. Also added low level modexp hooks and CRYPTO_EX structure and
7286 associated functions.
7289 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7290 as "read only": it can't be written to and the buffer it points to will
7291 not be freed. Reading from a read only BIO is much more efficient than
7292 a normal memory BIO. This was added because there are several times when
7293 an area of memory needs to be read from a BIO. The previous method was
7294 to create a memory BIO and write the data to it, this results in two
7295 copies of the data and an O(n^2) reading algorithm. There is a new
7296 function BIO_new_mem_buf() which creates a read only memory BIO from
7297 an area of memory. Also modified the PKCS#7 routines to use read only
7301 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7302 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7303 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7304 but a retry condition occured while trying to read the rest.
7307 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7308 NID_pkcs7_encrypted by default: this was wrong since this should almost
7309 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7310 the encrypted data type: this is a more sensible place to put it and it
7311 allows the PKCS#12 code to be tidied up that duplicated this
7315 *) Changed obj_dat.pl script so it takes its input and output files on
7316 the command line. This should avoid shell escape redirection problems
7320 *) Initial support for certificate extension requests, these are included
7321 in things like Xenroll certificate requests. Included functions to allow
7322 extensions to be obtained and added.
7325 *) -crlf option to s_client and s_server for sending newlines as
7326 CRLF (as required by many protocols).
7329 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7331 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7332 [Ralf S. Engelschall]
7334 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7335 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7337 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7341 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7342 DH parameters/keys (q is lost during that conversion, but the resulting
7343 DH parameters contain its length).
7345 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7346 much faster than DH_generate_parameters (which creates parameters
7347 where p = 2*q + 1), and also the smaller q makes DH computations
7348 much more efficient (160-bit exponentiation instead of 1024-bit
7349 exponentiation); so this provides a convenient way to support DHE
7350 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7351 utter importance to use
7352 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7354 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7355 when such DH parameters are used, because otherwise small subgroup
7356 attacks may become possible!
7359 *) Avoid memory leak in i2d_DHparams.
7362 *) Allow the -k option to be used more than once in the enc program:
7363 this allows the same encrypted message to be read by multiple recipients.
7366 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7367 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7368 it will always use the numerical form of the OID, even if it has a short
7372 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7373 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7374 otherwise bn_mod_exp was called. In the case of hardware keys for example
7375 no private key components need be present and it might store extra data
7376 in the RSA structure, which cannot be accessed from bn_mod_exp.
7377 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7378 private key operations.
7381 *) Added support for SPARC Linux.
7384 *) pem_password_cb function type incompatibly changed from
7385 typedef int pem_password_cb(char *buf, int size, int rwflag);
7387 ....(char *buf, int size, int rwflag, void *userdata);
7388 so that applications can pass data to their callbacks:
7389 The PEM[_ASN1]_{read,write}... functions and macros now take an
7390 additional void * argument, which is just handed through whenever
7391 the password callback is called.
7392 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7394 New function SSL_CTX_set_default_passwd_cb_userdata.
7396 Compatibility note: As many C implementations push function arguments
7397 onto the stack in reverse order, the new library version is likely to
7398 interoperate with programs that have been compiled with the old
7399 pem_password_cb definition (PEM_whatever takes some data that
7400 happens to be on the stack as its last argument, and the callback
7401 just ignores this garbage); but there is no guarantee whatsoever that
7404 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7405 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7406 problems not only on Windows, but also on some Unix platforms.
7407 To avoid problematic command lines, these definitions are now in an
7408 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7409 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7412 *) MIPS III/IV assembler module is reimplemented.
7415 *) More DES library cleanups: remove references to srand/rand and
7416 delete an unused file.
7419 *) Add support for the the free Netwide assembler (NASM) under Win32,
7420 since not many people have MASM (ml) and it can be hard to obtain.
7421 This is currently experimental but it seems to work OK and pass all
7422 the tests. Check out INSTALL.W32 for info.
7425 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7426 without temporary keys kept an extra copy of the server key,
7427 and connections with temporary keys did not free everything in case
7431 *) New function RSA_check_key and new openssl rsa option -check
7432 for verifying the consistency of RSA keys.
7433 [Ulf Moeller, Bodo Moeller]
7435 *) Various changes to make Win32 compile work:
7436 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7437 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7438 comparison" warnings.
7439 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7442 *) Add a debugging option to PKCS#5 v2 key generation function: when
7443 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7444 derived keys are printed to stderr.
7447 *) Copy the flags in ASN1_STRING_dup().
7448 [Roman E. Pavlov <pre@mo.msk.ru>]
7450 *) The x509 application mishandled signing requests containing DSA
7451 keys when the signing key was also DSA and the parameters didn't match.
7453 It was supposed to omit the parameters when they matched the signing key:
7454 the verifying software was then supposed to automatically use the CA's
7455 parameters if they were absent from the end user certificate.
7457 Omitting parameters is no longer recommended. The test was also
7458 the wrong way round! This was probably due to unusual behaviour in
7459 EVP_cmp_parameters() which returns 1 if the parameters match.
7460 This meant that parameters were omitted when they *didn't* match and
7461 the certificate was useless. Certificates signed with 'ca' didn't have
7463 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7465 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7466 The interface is as follows:
7467 Applications can use
7468 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7469 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7470 "off" is now the default.
7471 The library internally uses
7472 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7473 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7474 to disable memory-checking temporarily.
7476 Some inconsistent states that previously were possible (and were
7477 even the default) are now avoided.
7479 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7480 with each memory chunk allocated; this is occasionally more helpful
7481 than just having a counter.
7483 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7485 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7489 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7490 which largely parallels "options", but is for changing API behaviour,
7491 whereas "options" are about protocol behaviour.
7492 Initial "mode" flags are:
7494 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7495 a single record has been written.
7496 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7497 retries use the same buffer location.
7498 (But all of the contents must be
7502 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7505 *) Fix problems with no-hmac etc.
7506 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7508 *) New functions RSA_get_default_method(), RSA_set_method() and
7509 RSA_get_method(). These allows replacement of RSA_METHODs without having
7510 to mess around with the internals of an RSA structure.
7513 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7514 Also really enable memory leak checks in openssl.c and in some
7516 [Chad C. Mulligan, Bodo Moeller]
7518 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7519 up the length of negative integers. This has now been simplified to just
7520 store the length when it is first determined and use it later, rather
7521 than trying to keep track of where data is copied and updating it to
7523 [Steve Henson, reported by Brien Wheeler
7524 <bwheeler@authentica-security.com>]
7526 *) Add a new function PKCS7_signatureVerify. This allows the verification
7527 of a PKCS#7 signature but with the signing certificate passed to the
7528 function itself. This contrasts with PKCS7_dataVerify which assumes the
7529 certificate is present in the PKCS#7 structure. This isn't always the
7530 case: certificates can be omitted from a PKCS#7 structure and be
7531 distributed by "out of band" means (such as a certificate database).
7534 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7535 function prototypes in pem.h, also change util/mkdef.pl to add the
7536 necessary function names.
7539 *) mk1mf.pl (used by Windows builds) did not properly read the
7540 options set by Configure in the top level Makefile, and Configure
7541 was not even able to write more than one option correctly.
7542 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7545 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7546 file to be loaded from a BIO or FILE pointer. The BIO version will
7547 for example allow memory BIOs to contain config info.
7550 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7551 Whoever hopes to achieve shared-library compatibility across versions
7552 must use this, not the compile-time macro.
7553 (Exercise 0.9.4: Which is the minimum library version required by
7555 Note: All this applies only to multi-threaded programs, others don't
7559 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7560 through a BIO pair triggered the default case, i.e.
7561 SSLerr(...,SSL_R_UNKNOWN_STATE).
7564 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7565 can use the SSL library even if none of the specific BIOs is
7569 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7570 for the encoded length.
7571 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7573 *) Add initial documentation of the X509V3 functions.
7576 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7577 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7578 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7579 secure PKCS#8 private key format with a high iteration count.
7582 *) Fix determination of Perl interpreter: A perl or perl5
7583 _directory_ in $PATH was also accepted as the interpreter.
7584 [Ralf S. Engelschall]
7586 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7587 wrong with it but it was very old and did things like calling
7588 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7592 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7593 to use the new extension code.
7596 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7597 with macros. This should make it easier to change their form, add extra
7598 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7602 *) Add to configuration table a new entry that can specify an alternative
7603 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7604 according to Mark Crispin <MRC@Panda.COM>.
7608 *) DES CBC did not update the IV. Weird.
7611 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7612 Changing the behaviour of the former might break existing programs --
7613 where IV updating is needed, des_ncbc_encrypt can be used.
7616 *) When bntest is run from "make test" it drives bc to check its
7617 calculations, as well as internally checking them. If an internal check
7618 fails, it needs to cause bc to give a non-zero result or make test carries
7619 on without noticing the failure. Fixed.
7622 *) DES library cleanups.
7625 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7626 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7627 ciphers. NOTE: although the key derivation function has been verified
7628 against some published test vectors it has not been extensively tested
7629 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7633 *) Instead of "mkdir -p", which is not fully portable, use new
7634 Perl script "util/mkdir-p.pl".
7637 *) Rewrite the way password based encryption (PBE) is handled. It used to
7638 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7639 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7640 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7641 the 'parameter' field of the AlgorithmIdentifier is passed to the
7642 underlying key generation function so it must do its own ASN1 parsing.
7643 This has also changed the EVP_PBE_CipherInit() function which now has a
7644 'parameter' argument instead of literal salt and iteration count values
7645 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7648 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7649 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7650 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7651 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7652 value was just used as a "magic string" and not used directly its
7653 value doesn't matter.
7656 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7660 *) "linux-sparc64" configuration (ultrapenguin).
7661 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7662 "linux-sparc" configuration.
7663 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7665 *) config now generates no-xxx options for missing ciphers.
7668 *) Support the EBCDIC character set (work in progress).
7669 File ebcdic.c not yet included because it has a different license.
7670 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7672 *) Support BS2000/OSD-POSIX.
7673 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7675 *) Make callbacks for key generation use void * instead of char *.
7678 *) Make S/MIME samples compile (not yet tested).
7681 *) Additional typesafe stacks.
7684 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7688 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7690 *) New configuration variant "sco5-gcc".
7692 *) Updated some demos.
7693 [Sean O Riordain, Wade Scholine]
7695 *) Add missing BIO_free at exit of pkcs12 application.
7698 *) Fix memory leak in conf.c.
7701 *) Updates for Win32 to assembler version of MD5.
7704 *) Set #! path to perl in apps/der_chop to where we found it
7705 instead of using a fixed path.
7708 *) SHA library changes for irix64-mips4-cc.
7711 *) Improvements for VMS support.
7715 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7717 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7718 This also avoids the problems with SC4.2 and unpatched SC5.
7719 [Andy Polyakov <appro@fy.chalmers.se>]
7721 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7722 These are required because of the typesafe stack would otherwise break
7723 existing code. If old code used a structure member which used to be STACK
7724 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7725 sk_num or sk_value it would produce an error because the num, data members
7726 are not present in STACK_OF. Now it just produces a warning. sk_set
7727 replaces the old method of assigning a value to sk_value
7728 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7729 that does this will no longer work (and should use sk_set instead) but
7730 this could be regarded as a "questionable" behaviour anyway.
7733 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7734 correctly handle encrypted S/MIME data.
7737 *) Change type of various DES function arguments from des_cblock
7738 (which means, in function argument declarations, pointer to char)
7739 to des_cblock * (meaning pointer to array with 8 char elements),
7740 which allows the compiler to do more typechecking; it was like
7741 that back in SSLeay, but with lots of ugly casts.
7743 Introduce new type const_des_cblock.
7746 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7747 problems: find RecipientInfo structure that matches recipient certificate
7748 and initialise the ASN1 structures properly based on passed cipher.
7751 *) Belatedly make the BN tests actually check the results.
7754 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7755 to and from BNs: it was completely broken. New compilation option
7756 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7757 key elements as negative integers.
7760 *) Reorganize and speed up MD5.
7761 [Andy Polyakov <appro@fy.chalmers.se>]
7764 [Richard Levitte <richard@levitte.org>]
7766 *) New option -out to asn1parse to allow the parsed structure to be
7767 output to a file. This is most useful when combined with the -strparse
7768 option to examine the output of things like OCTET STRINGS.
7771 *) Make SSL library a little more fool-proof by not requiring any longer
7772 that SSL_set_{accept,connect}_state be called before
7773 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7774 in many applications because usually everything *appeared* to work as
7775 intended anyway -- now it really works as intended).
7778 *) Move openssl.cnf out of lib/.
7781 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7782 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7783 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7784 [Ralf S. Engelschall]
7786 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7787 handle PKCS#7 enveloped data properly.
7788 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7790 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7791 copying pointers. The cert_st handling is changed by this in
7792 various ways (and thus what used to be known as ctx->default_cert
7793 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7794 any longer when s->cert does not give us what we need).
7795 ssl_cert_instantiate becomes obsolete by this change.
7796 As soon as we've got the new code right (possibly it already is?),
7797 we have solved a couple of bugs of the earlier code where s->cert
7798 was used as if it could not have been shared with other SSL structures.
7800 Note that using the SSL API in certain dirty ways now will result
7801 in different behaviour than observed with earlier library versions:
7802 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7803 does not influence s as it used to.
7805 In order to clean up things more thoroughly, inside SSL_SESSION
7806 we don't use CERT any longer, but a new structure SESS_CERT
7807 that holds per-session data (if available); currently, this is
7808 the peer's certificate chain and, for clients, the server's certificate
7809 and temporary key. CERT holds only those values that can have
7810 meaningful defaults in an SSL_CTX.
7813 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7814 from the internal representation. Various PKCS#7 fixes: remove some
7815 evil casts and set the enc_dig_alg field properly based on the signing
7819 *) Allow PKCS#12 password to be set from the command line or the
7820 environment. Let 'ca' get its config file name from the environment
7821 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7825 *) Allow certificate policies extension to use an IA5STRING for the
7826 organization field. This is contrary to the PKIX definition but
7827 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7831 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7832 without disallowing inline assembler and the like for non-pedantic builds.
7835 *) Support Borland C++ builder.
7836 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7841 *) SHA-1 cleanups and performance enhancements.
7842 [Andy Polyakov <appro@fy.chalmers.se>]
7844 *) Sparc v8plus assembler for the bignum library.
7845 [Andy Polyakov <appro@fy.chalmers.se>]
7847 *) Accept any -xxx and +xxx compiler options in Configure.
7850 *) Update HPUX configuration.
7853 *) Add missing sk_<type>_unshift() function to safestack.h
7854 [Ralf S. Engelschall]
7856 *) New function SSL_CTX_use_certificate_chain_file that sets the
7857 "extra_cert"s in addition to the certificate. (This makes sense
7858 only for "PEM" format files, as chains as a whole are not
7862 *) Support verify_depth from the SSL API.
7863 x509_vfy.c had what can be considered an off-by-one-error:
7864 Its depth (which was not part of the external interface)
7865 was actually counting the number of certificates in a chain;
7866 now it really counts the depth.
7869 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7870 instead of X509err, which often resulted in confusing error
7871 messages since the error codes are not globally unique
7872 (e.g. an alleged error in ssl3_accept when a certificate
7873 didn't match the private key).
7875 *) New function SSL_CTX_set_session_id_context that allows to set a default
7876 value (so that you don't need SSL_set_session_id_context for each
7877 connection using the SSL_CTX).
7880 *) OAEP decoding bug fix.
7883 *) Support INSTALL_PREFIX for package builders, as proposed by
7887 *) New Configure options "threads" and "no-threads". For systems
7888 where the proper compiler options are known (currently Solaris
7889 and Linux), "threads" is the default.
7892 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7895 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7896 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7897 such as /usr/local/bin.
7900 *) "make linux-shared" to build shared libraries.
7901 [Niels Poppe <niels@netbox.org>]
7903 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7906 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7907 extension adding in x509 utility.
7910 *) Remove NOPROTO sections and error code comments.
7913 *) Partial rewrite of the DEF file generator to now parse the ANSI
7917 *) New Configure options --prefix=DIR and --openssldir=DIR.
7920 *) Complete rewrite of the error code script(s). It is all now handled
7921 by one script at the top level which handles error code gathering,
7922 header rewriting and C source file generation. It should be much better
7923 than the old method: it now uses a modified version of Ulf's parser to
7924 read the ANSI prototypes in all header files (thus the old K&R definitions
7925 aren't needed for error creation any more) and do a better job of
7926 translating function codes into names. The old 'ASN1 error code imbedded
7927 in a comment' is no longer necessary and it doesn't use .err files which
7928 have now been deleted. Also the error code call doesn't have to appear all
7929 on one line (which resulted in some large lines...).
7932 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7935 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7936 0 (which usually indicates a closed connection), but continue reading.
7939 *) Fix some race conditions.
7942 *) Add support for CRL distribution points extension. Add Certificate
7943 Policies and CRL distribution points documentation.
7946 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7949 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7950 8 of keying material. Merlin has also confirmed interop with this fix
7951 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7952 [Merlin Hughes <merlin@baltimore.ie>]
7954 *) Fix lots of warnings.
7955 [Richard Levitte <levitte@stacken.kth.se>]
7957 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7958 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7959 [Richard Levitte <levitte@stacken.kth.se>]
7961 *) Fix problems with sizeof(long) == 8.
7962 [Andy Polyakov <appro@fy.chalmers.se>]
7964 *) Change functions to ANSI C.
7967 *) Fix typos in error codes.
7968 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7970 *) Remove defunct assembler files from Configure.
7973 *) SPARC v8 assembler BIGNUM implementation.
7974 [Andy Polyakov <appro@fy.chalmers.se>]
7976 *) Support for Certificate Policies extension: both print and set.
7977 Various additions to support the r2i method this uses.
7980 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7981 return a const string when you are expecting an allocated buffer.
7984 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7985 types DirectoryString and DisplayText.
7988 *) Add code to allow r2i extensions to access the configuration database,
7989 add an LHASH database driver and add several ctx helper functions.
7992 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7993 fail when they extended the size of a BIGNUM.
7996 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7997 support typesafe stack.
8000 *) Fix typo in SSL_[gs]et_options().
8001 [Nils Frostberg <nils@medcom.se>]
8003 *) Delete various functions and files that belonged to the (now obsolete)
8004 old X509V3 handling code.
8007 *) New Configure option "rsaref".
8010 *) Don't auto-generate pem.h.
8013 *) Introduce type-safe ASN.1 SETs.
8016 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8017 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8019 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8020 that links with OpenSSL (well at least cause lots of warnings), but fear
8021 not: the conversion is trivial, and it eliminates loads of evil casts. A
8022 few STACKed things have been converted already. Feel free to convert more.
8023 In the fullness of time, I'll do away with the STACK type altogether.
8026 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8027 specified in <certfile> by updating the entry in the index.txt file.
8028 This way one no longer has to edit the index.txt file manually for
8029 revoking a certificate. The -revoke option does the gory details now.
8030 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8032 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8033 `-text' option at all and this way the `-noout -text' combination was
8034 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8035 [Ralf S. Engelschall]
8037 *) Make sure a corresponding plain text error message exists for the
8038 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8039 verify callback function determined that a certificate was revoked.
8040 [Ralf S. Engelschall]
8042 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8043 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8044 all available cipers including rc5, which was forgotten until now.
8045 In order to let the testing shell script know which algorithms
8046 are available, a new (up to now undocumented) command
8047 "openssl list-cipher-commands" is used.
8050 *) Bugfix: s_client occasionally would sleep in select() when
8051 it should have checked SSL_pending() first.
8054 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8055 the raw DSA values prior to ASN.1 encoding.
8058 *) Tweaks to Configure
8059 [Niels Poppe <niels@netbox.org>]
8061 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8065 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8068 *) New config option to avoid instructions that are illegal on the 80386.
8069 The default code is faster, but requires at least a 486.
8072 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8073 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8074 same as SSL2_VERSION anyway.
8077 *) New "-showcerts" option for s_client.
8080 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8081 application. Various cleanups and fixes.
8084 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8085 modify error routines to work internally. Add error codes and PBE init
8086 to library startup routines.
8089 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8090 packing functions to asn1 and evp. Changed function names and error
8091 codes along the way.
8094 *) PKCS12 integration: and so it begins... First of several patches to
8095 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8096 objects to objects.h
8099 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8100 and display support for Thawte strong extranet extension.
8103 *) Add LinuxPPC support.
8104 [Jeff Dubrule <igor@pobox.org>]
8106 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8107 bn_div_words in alpha.s.
8108 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8110 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8111 OAEP isn't supported when OpenSSL is built with RSAref.
8112 [Ulf Moeller <ulf@fitug.de>]
8114 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8115 so they no longer are missing under -DNOPROTO.
8116 [Soren S. Jorvang <soren@t.dk>]
8119 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8121 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8122 doesn't work when the session is reused. Coming soon!
8125 *) Fix a security hole, that allows sessions to be reused in the wrong
8126 context thus bypassing client cert protection! All software that uses
8127 client certs and session caches in multiple contexts NEEDS PATCHING to
8128 allow session reuse! A fuller solution is in the works.
8129 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8131 *) Some more source tree cleanups (removed obsolete files
8132 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8133 permission on "config" script to be executable) and a fix for the INSTALL
8135 [Ulf Moeller <ulf@fitug.de>]
8137 *) Remove some legacy and erroneous uses of malloc, free instead of
8139 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8141 *) Make rsa_oaep_test return non-zero on error.
8142 [Ulf Moeller <ulf@fitug.de>]
8144 *) Add support for native Solaris shared libraries. Configure
8145 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8146 if someone would make that last step automatic.
8147 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8149 *) ctx_size was not built with the right compiler during "make links". Fixed.
8152 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8153 except NULL ciphers". This means the default cipher list will no longer
8154 enable NULL ciphers. They need to be specifically enabled e.g. with
8155 the string "DEFAULT:eNULL".
8158 *) Fix to RSA private encryption routines: if p < q then it would
8159 occasionally produce an invalid result. This will only happen with
8160 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8163 *) Be less restrictive and allow also `perl util/perlpath.pl
8164 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8165 because this way one can also use an interpreter named `perl5' (which is
8166 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8167 installed as `perl').
8168 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8170 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8171 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8173 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8174 advapi32.lib to Win32 build and change the pem test comparision
8175 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8176 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8177 and crypto/des/ede_cbcm_enc.c.
8180 *) DES quad checksum was broken on big-endian architectures. Fixed.
8183 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8184 Win32 test batch file so it (might) work again. The Win32 test batch file
8185 is horrible: I feel ill....
8188 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8189 in e_os.h. Audit of header files to check ANSI and non ANSI
8190 sections: 10 functions were absent from non ANSI section and not exported
8191 from Windows DLLs. Fixed up libeay.num for new functions.
8194 *) Make `openssl version' output lines consistent.
8195 [Ralf S. Engelschall]
8197 *) Fix Win32 symbol export lists for BIO functions: Added
8198 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8199 to ms/libeay{16,32}.def.
8200 [Ralf S. Engelschall]
8202 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8203 fine under Unix and passes some trivial tests I've now added. But the
8204 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8205 added to make sure no one expects that this stuff really works in the
8206 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8207 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8209 [Ralf S. Engelschall]
8211 *) Fix the generation of two part addresses in perl.
8212 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8214 *) Add config entry for Linux on MIPS.
8215 [John Tobey <jtobey@channel1.com>]
8217 *) Make links whenever Configure is run, unless we are on Windoze.
8220 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8221 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8225 *) Add a useful kludge to allow package maintainers to specify compiler and
8226 other platforms details on the command line without having to patch the
8227 Configure script everytime: One now can use ``perl Configure
8228 <id>:<details>'', i.e. platform ids are allowed to have details appended
8229 to them (seperated by colons). This is treated as there would be a static
8230 pre-configured entry in Configure's %table under key <id> with value
8231 <details> and ``perl Configure <id>'' is called. So, when you want to
8232 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8233 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8234 now, which overrides the FreeBSD-elf entry on-the-fly.
8235 [Ralf S. Engelschall]
8237 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8240 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8241 on the `perl Configure ...' command line. This way one can compile
8242 OpenSSL libraries with Position Independent Code (PIC) which is needed
8243 for linking it into DSOs.
8244 [Ralf S. Engelschall]
8246 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8250 *) Cleaned up the LICENSE document: The official contact for any license
8251 questions now is the OpenSSL core team under openssl-core@openssl.org.
8252 And add a paragraph about the dual-license situation to make sure people
8253 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8254 to the OpenSSL toolkit.
8255 [Ralf S. Engelschall]
8257 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8258 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8259 Additonally cleaned up the `make links' target: Remove unnecessary
8260 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8261 to speed processing and no longer clutter the display with confusing
8262 stuff. Instead only the actually done links are displayed.
8263 [Ralf S. Engelschall]
8265 *) Permit null encryption ciphersuites, used for authentication only. It used
8266 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8267 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8271 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8272 signed attributes when verifying signatures (this would break them),
8273 the detached data encoding was wrong and public keys obtained using
8274 X509_get_pubkey() weren't freed.
8277 *) Add text documentation for the BUFFER functions. Also added a work around
8278 to a Win95 console bug. This was triggered by the password read stuff: the
8279 last character typed gets carried over to the next fread(). If you were
8280 generating a new cert request using 'req' for example then the last
8281 character of the passphrase would be CR which would then enter the first
8285 *) Added the new `Includes OpenSSL Cryptography Software' button as
8286 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8287 button and can be used by applications based on OpenSSL to show the
8288 relationship to the OpenSSL project.
8289 [Ralf S. Engelschall]
8291 *) Remove confusing variables in function signatures in files
8292 ssl/ssl_lib.c and ssl/ssl.h.
8293 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8295 *) Don't install bss_file.c under PREFIX/include/
8296 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8298 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8299 functions that return function pointers and has support for NT specific
8300 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8301 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8302 unsigned to signed types: this was killing the Win32 compile.
8305 *) Add new certificate file to stack functions,
8306 SSL_add_dir_cert_subjects_to_stack() and
8307 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8308 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8309 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8310 This means that Apache-SSL and similar packages don't have to mess around
8311 to add as many CAs as they want to the preferred list.
8314 *) Experiment with doxygen documentation. Currently only partially applied to
8316 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8317 openssl.doxy as the configuration file.
8320 *) Get rid of remaining C++-style comments which strict C compilers hate.
8321 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8323 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8324 compiled in by default: it has problems with large keys.
8327 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8328 DH private keys and/or callback functions which directly correspond to
8329 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8330 is needed for applications which have to configure certificates on a
8331 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8333 For the RSA certificate situation is makes no difference, but
8334 for the DSA certificate situation this fixes the "no shared cipher"
8335 problem where the OpenSSL cipher selection procedure failed because the
8336 temporary keys were not overtaken from the context and the API provided
8337 no way to reconfigure them.
8338 The new functions now let applications reconfigure the stuff and they
8339 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8340 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8341 non-public-API function ssl_cert_instantiate() is used as a helper
8342 function and also to reduce code redundancy inside ssl_rsa.c.
8343 [Ralf S. Engelschall]
8345 *) Move s_server -dcert and -dkey options out of the undocumented feature
8346 area because they are useful for the DSA situation and should be
8347 recognized by the users.
8348 [Ralf S. Engelschall]
8350 *) Fix the cipher decision scheme for export ciphers: the export bits are
8351 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8352 SSL_EXP_MASK. So, the original variable has to be used instead of the
8353 already masked variable.
8354 [Richard Levitte <levitte@stacken.kth.se>]
8356 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8357 [Richard Levitte <levitte@stacken.kth.se>]
8359 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8360 from `int' to `unsigned int' because it's a length and initialized by
8361 EVP_DigestFinal() which expects an `unsigned int *'.
8362 [Richard Levitte <levitte@stacken.kth.se>]
8364 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8365 script. Instead use the usual Shell->Perl transition trick.
8366 [Ralf S. Engelschall]
8368 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8369 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8370 -noout -modulus' as it's already the case for `openssl rsa -noout
8371 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8372 currently the public key is printed (a decision which was already done by
8373 `openssl dsa -modulus' in the past) which serves a similar purpose.
8374 Additionally the NO_RSA no longer completely removes the whole -modulus
8375 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8377 [Ralf S. Engelschall]
8379 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8380 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8381 [Arne Ansper <arne@ats.cyber.ee>]
8383 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8384 to be added. Now both 'req' and 'ca' can use new objects defined in the
8388 *) Add cool BIO that does syslog (or event log on NT).
8389 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8391 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8392 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8393 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8394 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8397 *) Add preliminary config info for new extension code.
8400 *) Make RSA_NO_PADDING really use no padding.
8401 [Ulf Moeller <ulf@fitug.de>]
8403 *) Generate errors when private/public key check is done.
8406 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8407 for some CRL extensions and new objects added.
8410 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8411 key usage extension and fuller support for authority key id.
8414 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8415 padding method for RSA, which is recommended for new applications in PKCS
8416 #1 v2.0 (RFC 2437, October 1998).
8417 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8418 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8419 against Bleichbacher's attack on RSA.
8420 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8423 *) Updates to the new SSL compression code
8424 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8426 *) Fix so that the version number in the master secret, when passed
8427 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8428 (because the server will not accept higher), that the version number
8429 is 0x03,0x01, not 0x03,0x00
8430 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8432 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8433 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8434 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8437 *) Support for RAW extensions where an arbitrary extension can be
8438 created by including its DER encoding. See apps/openssl.cnf for
8442 *) Make sure latest Perl versions don't interpret some generated C array
8443 code as Perl array code in the crypto/err/err_genc.pl script.
8444 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8446 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8447 not many people have the assembler. Various Win32 compilation fixes and
8448 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8452 *) Modify configure script 'Configure' to automatically create crypto/date.h
8453 file under Win32 and also build pem.h from pem.org. New script
8454 util/mkfiles.pl to create the MINFO file on environments that can't do a
8455 'make files': perl util/mkfiles.pl >MINFO should work.
8458 *) Major rework of DES function declarations, in the pursuit of correctness
8459 and purity. As a result, many evil casts evaporated, and some weirdness,
8460 too. You may find this causes warnings in your code. Zapping your evil
8461 casts will probably fix them. Mostly.
8464 *) Fix for a typo in asn1.h. Bug fix to object creation script
8465 obj_dat.pl. It considered a zero in an object definition to mean
8466 "end of object": none of the objects in objects.h have any zeros
8467 so it wasn't spotted.
8468 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8470 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8471 Masking (CBCM). In the absence of test vectors, the best I have been able
8472 to do is check that the decrypt undoes the encrypt, so far. Send me test
8473 vectors if you have them.
8476 *) Correct calculation of key length for export ciphers (too much space was
8477 allocated for null ciphers). This has not been tested!
8480 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8481 message is now correct (it understands "crypto" and "ssl" on its
8482 command line). There is also now an "update" option. This will update
8483 the util/ssleay.num and util/libeay.num files with any new functions.
8485 perl util/mkdef.pl crypto ssl update
8486 it will update them.
8489 *) Overhauled the Perl interface (perl/*):
8490 - ported BN stuff to OpenSSL's different BN library
8491 - made the perl/ source tree CVS-aware
8492 - renamed the package from SSLeay to OpenSSL (the files still contain
8493 their history because I've copied them in the repository)
8494 - removed obsolete files (the test scripts will be replaced
8495 by better Test::Harness variants in the future)
8496 [Ralf S. Engelschall]
8498 *) First cut for a very conservative source tree cleanup:
8499 1. merge various obsolete readme texts into doc/ssleay.txt
8500 where we collect the old documents and readme texts.
8501 2. remove the first part of files where I'm already sure that we no
8502 longer need them because of three reasons: either they are just temporary
8503 files which were left by Eric or they are preserved original files where
8504 I've verified that the diff is also available in the CVS via "cvs diff
8505 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8506 the crypto/md/ stuff).
8507 [Ralf S. Engelschall]
8509 *) More extension code. Incomplete support for subject and issuer alt
8510 name, issuer and authority key id. Change the i2v function parameters
8511 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8512 what that's for :-) Fix to ASN1 macro which messed up
8513 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8516 *) Preliminary support for ENUMERATED type. This is largely copied from the
8520 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8521 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8523 *) Make sure `make rehash' target really finds the `openssl' program.
8524 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8526 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8527 like to hear about it if this slows down other processors.
8530 *) Add CygWin32 platform information to Configure script.
8531 [Alan Batie <batie@aahz.jf.intel.com>]
8533 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8534 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8536 *) New program nseq to manipulate netscape certificate sequences
8539 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8543 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8544 but the BN code had some problems that would cause failures when
8545 doing certificate verification and some other functions.
8546 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8548 *) Add ASN1 and PEM code to support netscape certificate sequences.
8551 *) Add ASN1 and PEM code to support netscape certificate sequences.
8554 *) Add several PKIX and private extended key usage OIDs.
8557 *) Modify the 'ca' program to handle the new extension code. Modify
8558 openssl.cnf for new extension format, add comments.
8561 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8562 and add a sample to openssl.cnf so req -x509 now adds appropriate
8566 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8567 error code, add initial support to X509_print() and x509 application.
8570 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8571 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8572 stuff is currently isolated and isn't even compiled yet.
8575 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8576 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8577 Removed the versions check from X509 routines when loading extensions:
8578 this allows certain broken certificates that don't set the version
8579 properly to be processed.
8582 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8583 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8584 can still be regenerated with "make depend".
8587 *) Spelling mistake in C version of CAST-128.
8588 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8590 *) Changes to the error generation code. The perl script err-code.pl
8591 now reads in the old error codes and retains the old numbers, only
8592 adding new ones if necessary. It also only changes the .err files if new
8593 codes are added. The makefiles have been modified to only insert errors
8594 when needed (to avoid needlessly modifying header files). This is done
8595 by only inserting errors if the .err file is newer than the auto generated
8596 C file. To rebuild all the error codes from scratch (the old behaviour)
8597 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8598 or delete all the .err files.
8601 *) CAST-128 was incorrectly implemented for short keys. The C version has
8602 been fixed, but is untested. The assembler versions are also fixed, but
8603 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8604 to regenerate it if needed.
8605 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8606 Hagino <itojun@kame.net>]
8608 *) File was opened incorrectly in randfile.c.
8609 [Ulf Möller <ulf@fitug.de>]
8611 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8612 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8613 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8614 al: it's just almost always a UTCTime. Note this patch adds new error
8615 codes so do a "make errors" if there are problems.
8618 *) Correct Linux 1 recognition in config.
8619 [Ulf Möller <ulf@fitug.de>]
8621 *) Remove pointless MD5 hash when using DSA keys in ca.
8622 [Anonymous <nobody@replay.com>]
8624 *) Generate an error if given an empty string as a cert directory. Also
8625 generate an error if handed NULL (previously returned 0 to indicate an
8626 error, but didn't set one).
8627 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8629 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8632 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8633 parameters. This was causing a warning which killed off the Win32 compile.
8636 *) Remove C++ style comments from crypto/bn/bn_local.h.
8637 [Neil Costigan <neil.costigan@celocom.com>]
8639 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8640 based on a text string, looking up short and long names and finally
8641 "dot" format. The "dot" format stuff didn't work. Added new function
8642 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8643 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8644 OID is not part of the table.
8647 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8648 X509_LOOKUP_by_alias().
8651 *) Sort openssl functions by name.
8654 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8655 encryption from sample DSA keys (in case anyone is interested the password
8659 *) Make _all_ *_free functions accept a NULL pointer.
8660 [Frans Heymans <fheymans@isaserver.be>]
8662 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8664 [Anonymous <nobody@replay.com>]
8666 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8667 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8669 *) Don't blow it for numeric -newkey arguments to apps/req.
8670 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8672 *) Temp key "for export" tests were wrong in s3_srvr.c.
8673 [Anonymous <nobody@replay.com>]
8675 *) Add prototype for temp key callback functions
8676 SSL_CTX_set_tmp_{rsa,dh}_callback().
8679 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8680 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8683 *) X509_name_add_entry() freed the wrong thing after an error.
8684 [Arne Ansper <arne@ats.cyber.ee>]
8686 *) rsa_eay.c would attempt to free a NULL context.
8687 [Arne Ansper <arne@ats.cyber.ee>]
8689 *) BIO_s_socket() had a broken should_retry() on Windoze.
8690 [Arne Ansper <arne@ats.cyber.ee>]
8692 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8693 [Arne Ansper <arne@ats.cyber.ee>]
8695 *) Make sure the already existing X509_STORE->depth variable is initialized
8696 in X509_STORE_new(), but document the fact that this variable is still
8697 unused in the certificate verification process.
8698 [Ralf S. Engelschall]
8700 *) Fix the various library and apps files to free up pkeys obtained from
8701 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8704 *) Fix reference counting in X509_PUBKEY_get(). This makes
8705 demos/maurice/example2.c work, amongst others, probably.
8706 [Steve Henson and Ben Laurie]
8708 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8709 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8710 are no longer created. This way we have a single and consistent command
8711 line interface `openssl <command>', similar to `cvs <command>'.
8712 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8714 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8715 BIT STRING wrapper always have zero unused bits.
8718 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8721 *) Make the top-level INSTALL documentation easier to understand.
8724 *) Makefiles updated to exit if an error occurs in a sub-directory
8725 make (including if user presses ^C) [Paul Sutton]
8727 *) Make Montgomery context stuff explicit in RSA data structure.
8730 *) Fix build order of pem and err to allow for generated pem.h.
8733 *) Fix renumbering bug in X509_NAME_delete_entry().
8736 *) Enhanced the err-ins.pl script so it makes the error library number
8737 global and can add a library name. This is needed for external ASN1 and
8738 other error libraries.
8741 *) Fixed sk_insert which never worked properly.
8744 *) Fix ASN1 macros so they can handle indefinite length construted
8745 EXPLICIT tags. Some non standard certificates use these: they can now
8749 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8750 into a single doc/ssleay.txt bundle. This way the information is still
8751 preserved but no longer messes up this directory. Now it's new room for
8752 the new set of documenation files.
8753 [Ralf S. Engelschall]
8755 *) SETs were incorrectly DER encoded. This was a major pain, because they
8756 shared code with SEQUENCEs, which aren't coded the same. This means that
8757 almost everything to do with SETs or SEQUENCEs has either changed name or
8758 number of arguments.
8759 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8761 *) Fix test data to work with the above.
8764 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8765 was already fixed by Eric for 0.9.1 it seems.
8766 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8768 *) Autodetect FreeBSD3.
8771 *) Fix various bugs in Configure. This affects the following platforms:
8775 unixware-2.0-pentium
8779 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8780 before they are needed.
8783 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8787 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8789 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8790 changed SSLeay to OpenSSL in version strings.
8791 [Ralf S. Engelschall]
8793 *) Some fixups to the top-level documents.
8796 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8797 because the symlink to include/ was missing.
8798 [Ralf S. Engelschall]
8800 *) Incorporated the popular no-RSA/DSA-only patches
8801 which allow to compile a RSA-free SSLeay.
8802 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8804 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8805 when "ssleay" is still not found.
8806 [Ralf S. Engelschall]
8808 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8809 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8811 *) Updated the README file.
8812 [Ralf S. Engelschall]
8814 *) Added various .cvsignore files in the CVS repository subdirs
8815 to make a "cvs update" really silent.
8816 [Ralf S. Engelschall]
8818 *) Recompiled the error-definition header files and added
8819 missing symbols to the Win32 linker tables.
8820 [Ralf S. Engelschall]
8822 *) Cleaned up the top-level documents;
8823 o new files: CHANGES and LICENSE
8824 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8825 o merged COPYRIGHT into LICENSE
8826 o removed obsolete TODO file
8827 o renamed MICROSOFT to INSTALL.W32
8828 [Ralf S. Engelschall]
8830 *) Removed dummy files from the 0.9.1b source tree:
8831 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8832 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8833 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8834 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8835 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8836 [Ralf S. Engelschall]
8838 *) Added various platform portability fixes.
8841 *) The Genesis of the OpenSSL rpject:
8842 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8843 Young and Tim J. Hudson created while they were working for C2Net until
8845 [The OpenSSL Project]
8848 Changes between 0.9.0b and 0.9.1b [not released]
8850 *) Updated a few CA certificates under certs/
8853 *) Changed some BIGNUM api stuff.
8856 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8857 DGUX x86, Linux Alpha, etc.
8860 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8861 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8865 *) Add -strparse option to asn1pars program which parses nested
8867 [Dr Stephen Henson <shenson@bigfoot.com>]
8869 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8872 *) DSA fix for "ca" program.
8875 *) Added "-genkey" option to "dsaparam" program.
8878 *) Added RIPE MD160 (rmd160) message digest.
8881 *) Added -a (all) option to "ssleay version" command.
8884 *) Added PLATFORM define which is the id given to Configure.
8887 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8890 *) Extended the ASN.1 parser routines.
8893 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8896 *) Added a BN_CTX to the BN library.
8899 *) Fixed the weak key values in DES library
8902 *) Changed API in EVP library for cipher aliases.
8905 *) Added support for RC2/64bit cipher.
8908 *) Converted the lhash library to the crypto/mem.c functions.
8911 *) Added more recognized ASN.1 object ids.
8914 *) Added more RSA padding checks for SSL/TLS.
8917 *) Added BIO proxy/filter functionality.
8920 *) Added extra_certs to SSL_CTX which can be used
8921 send extra CA certificates to the client in the CA cert chain sending
8922 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8925 *) Now Fortezza is denied in the authentication phase because
8926 this is key exchange mechanism is not supported by SSLeay at all.
8929 *) Additional PKCS1 checks.
8932 *) Support the string "TLSv1" for all TLS v1 ciphers.
8935 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8936 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8939 *) Fixed a few memory leaks.
8942 *) Fixed various code and comment typos.
8945 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8946 bytes sent in the client random.
8947 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob