5 Changes between 0.9.8g and 0.9.9 [xx XXX xxxx]
7 *) To support arbitrarily-typed thread IDs, deprecate the existing
8 type-specific APIs for a general purpose CRYPTO_THREADID
9 interface. Applications can choose the thread ID
10 callback type it wishes to register, as before;
12 void CRYPTO_set_id_callback(unsigned long (*func)(void));
13 void CRYPTO_set_idptr_callback(void *(*func)(void));
15 but retrieval, copies, and comparisons of thread IDs are via
16 type-independent interfaces;
18 void CRYPTO_THREADID_set(CRYPTO_THREADID *id);
19 void CRYPTO_THREADID_cmp(const CRYPTO_THREADID *id1,
20 const CRYPTO_THREADID *id2);
21 void CRYPTO_THREADID_cpy(CRYPTO_THREADID *dst,
22 const CRYPTO_THREADID *src);
24 Also, for code that needs a thread ID "value" for use in
25 hash-tables or logging, a "hash" is available by;
27 unsigned long CRYPTO_THREADID_hash(const CRYPTO_THREADID *id);
29 This hash value is likely to be the thread ID anyway, but
30 otherwise it will be unique if possible or as collision-free as
31 possible if uniqueness can't be guaranteed on the target
34 The following functions are deprecated;
35 unsigned long (*CRYPTO_get_id_callback(void))(void);
36 unsigned long CRYPTO_thread_id(void);
38 As a consequence of the above, there are similar deprecations of
39 BN_BLINDING functions in favour of CRYPTO_THREADID-based
42 #ifndef OPENSSL_NO_DEPRECATED
43 unsigned long BN_BLINDING_get_thread_id(const BN_BLINDING *);
44 void BN_BLINDING_set_thread_id(BN_BLINDING *, unsigned long);
46 void BN_BLINDING_set_thread(BN_BLINDING *);
47 int BN_BLINDING_cmp_thread(const BN_BLINDING *, const
50 Also, the ERR_remove_state(int pid) API has been deprecated;
52 #ifndef OPENSSL_NO_DEPRECATED
53 void ERR_remove_state(unsigned long pid)
55 void ERR_remove_thread_state(CRYPTO_THREADID *tid);
59 *) Initial support for Cryptographic Message Syntax (aka CMS) based
60 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
61 support for data, signedData, compressedData, digestedData and
62 encryptedData, envelopedData types included. Scripts to check against
63 RFC4134 examples draft and interop and consistency checks of many
64 content types and variants.
67 *) Add options to enc utility to support use of zlib compression BIO.
70 *) Extend mk1mf to support importing of options and assembly language
71 files from Configure script, currently only included in VC-WIN32.
72 The assembly language rules can now optionally generate the source
73 files from the associated perl scripts.
76 *) Implement remaining functionality needed to support GOST ciphersuites.
77 Interop testing has been performed using CryptoPro implementations.
78 [Victor B. Wagner <vitus@cryptocom.ru>]
80 *) s390x assembler pack.
83 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
87 *) Implement Opaque PRF Input TLS extension as specified in
88 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
89 official specification yet and no extension type assignment by
90 IANA exists, this extension (for now) will have to be explicitly
91 enabled when building OpenSSL by providing the extension number
92 to use. For example, specify an option
94 -DTLSEXT_TYPE_opaque_prf_input=0x9527
96 to the "config" or "Configure" script to enable the extension,
97 assuming extension number 0x9527 (which is a completely arbitrary
98 and unofficial assignment based on the MD5 hash of the Internet
99 Draft). Note that by doing so, you potentially lose
100 interoperability with other TLS implementations since these might
101 be using the same extension number for other purposes.
103 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
104 opaque PRF input value to use in the handshake. This will create
105 an interal copy of the length-'len' string at 'src', and will
106 return non-zero for success.
108 To get more control and flexibility, provide a callback function
111 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
112 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
116 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
119 Callback function 'cb' will be called in handshakes, and is
120 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
121 Argument 'arg' is for application purposes (the value as given to
122 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
123 be provided to the callback function). The callback function
124 has to return non-zero to report success: usually 1 to use opaque
125 PRF input just if possible, or 2 to enforce use of the opaque PRF
126 input. In the latter case, the library will abort the handshake
127 if opaque PRF input is not successfully negotiated.
129 Arguments 'peerinput' and 'len' given to the callback function
130 will always be NULL and 0 in the case of a client. A server will
131 see the client's opaque PRF input through these variables if
132 available (NULL and 0 otherwise). Note that if the server
133 provides an opaque PRF input, the length must be the same as the
134 length of the client's opaque PRF input.
136 Note that the callback function will only be called when creating
137 a new session (session resumption can resume whatever was
138 previously negotiated), and will not be called in SSL 2.0
139 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
140 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
141 for applications that need to enforce opaque PRF input.
145 *) Update ssl code to support digests other than SHA1+MD5 for handshake
148 [Victor B. Wagner <vitus@cryptocom.ru>]
150 *) Add RFC4507 support to OpenSSL. This includes the corrections in
151 RFC4507bis. The encrypted ticket format is an encrypted encoded
152 SSL_SESSION structure, that way new session features are automatically
155 If a client application caches session in an SSL_SESSION structure
156 support is transparent because tickets are now stored in the encoded
159 The SSL_CTX structure automatically generates keys for ticket
160 protection in servers so again support should be possible
161 with no application modification.
163 If a client or server wishes to disable RFC4507 support then the option
164 SSL_OP_NO_TICKET can be set.
166 Add a TLS extension debugging callback to allow the contents of any client
167 or server extensions to be examined.
169 This work was sponsored by Google.
172 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
173 OpenSSL should now compile cleanly on gcc 4.2
174 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
176 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
177 support including streaming MAC support: this is required for GOST
179 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
181 *) Add option -stream to use PKCS#7 streaming in smime utility. New
182 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
183 to output in BER and PEM format.
186 *) Experimental support for use of HMAC via EVP_PKEY interface. This
187 allows HMAC to be handled via the EVP_DigestSign*() interface. The
188 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
189 ENGINE support for HMAC keys which are unextractable. New -mac and
190 -macopt options to dgst utility.
193 *) New option -sigopt to dgst utility. Update dgst to use
194 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
195 alternative signing paramaters such as X9.31 or PSS in the dgst
199 *) Change ssl_cipher_apply_rule(), the internal function that does
200 the work each time a ciphersuite string requests enabling
201 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
202 removing ("!foo+bar") a class of ciphersuites: Now it maintains
203 the order of disabled ciphersuites such that those ciphersuites
204 that most recently went from enabled to disabled not only stay
205 in order with respect to each other, but also have higher priority
206 than other disabled ciphersuites the next time ciphersuites are
209 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
210 the same ciphersuites as with "HIGH" alone, but in a specific
211 order where the PSK ciphersuites come first (since they are the
212 most recently disabled ciphersuites when "HIGH" is parsed).
214 Also, change ssl_create_cipher_list() (using this new
215 funcionality) such that between otherwise identical
216 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
220 *) Change ssl_create_cipher_list() so that it automatically
221 arranges the ciphersuites in reasonable order before starting
222 to process the rule string. Thus, the definition for "DEFAULT"
223 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
224 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
225 This makes it much easier to arrive at a reasonable default order
226 in applications for which anonymous ciphers are OK (meaning
227 that you can't actually use DEFAULT).
228 [Bodo Moeller; suggested by Victor Duchovni]
230 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
231 processing) into multiple integers instead of setting
232 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
233 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
234 (These masks as well as the individual bit definitions are hidden
235 away into the non-exported interface ssl/ssl_locl.h, so this
236 change to the definition of the SSL_CIPHER structure shouldn't
237 affect applications.) This give us more bits for each of these
238 categories, so there is no longer a need to coagulate AES128 and
239 AES256 into a single algorithm bit, and to coagulate Camellia128
240 and Camellia256 into a single algorithm bit, which has led to all
243 Thus, among other things, the kludge introduced in 0.9.7m and
244 0.9.8e for masking out AES256 independently of AES128 or masking
245 out Camellia256 independently of AES256 is not needed here in 0.9.9.
247 With the change, we also introduce new ciphersuite aliases that
248 so far were missing: "AES128", "AES256", "CAMELLIA128", and
252 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
253 Use the leftmost N bytes of the signature input if the input is
254 larger than the prime q (with N being the size in bytes of q).
257 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
258 it yet and it is largely untested.
261 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
264 *) Initial incomplete changes to avoid need for function casts in OpenSSL
265 some compilers (gcc 4.2 and later) reject their use. Safestack is
266 reimplemented. Update ASN1 to avoid use of legacy functions.
269 *) Win32/64 targets are linked with Winsock2.
272 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
273 to external functions. This can be used to increase CRL handling
274 efficiency especially when CRLs are very large by (for example) storing
275 the CRL revoked certificates in a database.
278 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
279 new CRLs added to a directory can be used. New command line option
280 -verify_return_error to s_client and s_server. This causes real errors
281 to be returned by the verify callback instead of carrying on no matter
282 what. This reflects the way a "real world" verify callback would behave.
285 *) GOST engine, supporting several GOST algorithms and public key formats.
286 Kindly donated by Cryptocom.
289 *) Partial support for Issuing Distribution Point CRL extension. CRLs
290 partitioned by DP are handled but no indirect CRL or reason partitioning
291 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
292 selected via a scoring technique which handles IDP and AKID in CRLs.
295 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
296 will ultimately be used for all verify operations: this will remove the
297 X509_STORE dependency on certificate verification and allow alternative
298 lookup methods. X509_STORE based implementations of these two callbacks.
301 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
302 Modify get_crl() to find a valid (unexpired) CRL if possible.
305 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
306 this would be called X509_CRL_cmp() but that name is already used by
307 a function that just compares CRL issuer names. Cache several CRL
308 extensions in X509_CRL structure and cache CRLDP in X509.
311 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
312 this maps equivalent X509_NAME structures into a consistent structure.
313 Name comparison can then be performed rapidly using memcmp().
316 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
320 *) Allow digests to supply their own micalg string for S/MIME type using
321 the ctrl EVP_MD_CTRL_MICALG.
324 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
325 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
326 ctrl. It can then customise the structure before and/or after signing
330 *) New function OBJ_add_sigid() to allow application defined signature OIDs
331 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
332 to free up any added signature OIDs.
335 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
336 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
337 digest and cipher tables. New options added to openssl utility:
338 list-message-digest-algorithms and list-cipher-algorithms.
341 *) In addition to the numerical (unsigned long) thread ID, provide
342 for a pointer (void *) thread ID. This helps accomodate systems
343 that do not provide an unsigned long thread ID. OpenSSL assumes
344 it is in the same thread iff both the numerical and the pointer
345 thread ID agree; so applications are just required to define one
346 of them appropriately (e.g., by using a pointer to a per-thread
347 memory object malloc()ed by the application for the pointer-type
348 thread ID). Exactly analoguous to the existing functions
350 void CRYPTO_set_id_callback(unsigned long (*func)(void));
351 unsigned long (*CRYPTO_get_id_callback(void))(void);
352 unsigned long CRYPTO_thread_id(void);
354 we now have additional functions
356 void CRYPTO_set_idptr_callback(void *(*func)(void));
357 void *(*CRYPTO_get_idptr_callback(void))(void);
358 void *CRYPTO_thread_idptr(void);
360 also in <openssl/crypto.h>. The default value for
361 CRYPTO_thread_idptr() if the application has not provided its own
365 -- NOTE -- this change has been reverted and replaced with a
366 type-independent wrapper (ie. applications do not have to check
367 two type-specific thread ID representations as implied in this
368 change note). However, the "idptr" callback form described here
369 can still be registered. Please see the more recent CHANGES note
370 regarding CRYPTO_THREADID. [Geoff Thorpe]
373 *) Change the array representation of binary polynomials: the list
374 of degrees of non-zero coefficients is now terminated with -1.
375 Previously it was terminated with 0, which was also part of the
376 value; thus, the array representation was not applicable to
377 polynomials where t^0 has coefficient zero. This change makes
378 the array representation useful in a more general context.
381 *) Various modifications and fixes to SSL/TLS cipher string
382 handling. For ECC, the code now distinguishes between fixed ECDH
383 with RSA certificates on the one hand and with ECDSA certificates
384 on the other hand, since these are separate ciphersuites. The
385 unused code for Fortezza ciphersuites has been removed.
387 For consistency with EDH, ephemeral ECDH is now called "EECDH"
388 (not "ECDHE"). For consistency with the code for DH
389 certificates, use of ECDH certificates is now considered ECDH
390 authentication, not RSA or ECDSA authentication (the latter is
391 merely the CA's signing algorithm and not actively used in the
394 The temporary ciphersuite alias "ECCdraft" is no longer
395 available, and ECC ciphersuites are no longer excluded from "ALL"
396 and "DEFAULT". The following aliases now exist for RFC 4492
397 ciphersuites, most of these by analogy with the DH case:
399 kECDHr - ECDH cert, signed with RSA
400 kECDHe - ECDH cert, signed with ECDSA
401 kECDH - ECDH cert (signed with either RSA or ECDSA)
402 kEECDH - ephemeral ECDH
403 ECDH - ECDH cert or ephemeral ECDH
409 AECDH - anonymous ECDH
410 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
414 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
415 Use correct micalg parameters depending on digest(s) in signed message.
418 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
419 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
422 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
423 an engine to register a method. Add ENGINE lookups for methods and
424 functional reference processing.
427 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
428 EVP_{Sign,Verify}* which allow an application to customise the signature
432 *) New -resign option to smime utility. This adds one or more signers
433 to an existing PKCS#7 signedData structure. Also -md option to use an
434 alternative message digest algorithm for signing.
437 *) Tidy up PKCS#7 routines and add new functions to make it easier to
438 create PKCS7 structures containing multiple signers. Update smime
439 application to support multiple signers.
442 *) New -macalg option to pkcs12 utility to allow setting of an alternative
446 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
447 Reorganize PBE internals to lookup from a static table using NIDs,
448 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
449 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
450 PRF which will be automatically used with PBES2.
453 *) Replace the algorithm specific calls to generate keys in "req" with the
457 *) Update PKCS#7 enveloped data routines to use new API. This is now
458 supported by any public key method supporting the encrypt operation. A
459 ctrl is added to allow the public key algorithm to examine or modify
460 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
464 *) Add a ctrl to asn1 method to allow a public key algorithm to express
465 a default digest type to use. In most cases this will be SHA1 but some
466 algorithms (such as GOST) need to specify an alternative digest. The
467 return value indicates how strong the prefernce is 1 means optional and
468 2 is mandatory (that is it is the only supported type). Modify
469 ASN1_item_sign() to accept a NULL digest argument to indicate it should
470 use the default md. Update openssl utilities to use the default digest
471 type for signing if it is not explicitly indicated.
474 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
475 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
476 signing method from the key type. This effectively removes the link
477 between digests and public key types.
480 *) Add an OID cross reference table and utility functions. Its purpose is to
481 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
482 rsaEncryption. This will allow some of the algorithm specific hackery
483 needed to use the correct OID to be removed.
486 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
487 structures for PKCS7_sign(). They are now set up by the relevant public
491 *) Add provisional EC pkey method with support for ECDSA and ECDH.
494 *) Add support for key derivation (agreement) in the API, DH method and
498 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
499 public and private key formats. As a side effect these add additional
500 command line functionality not previously available: DSA signatures can be
501 generated and verified using pkeyutl and DH key support and generation in
506 [Oliver Tappe <zooey@hirschkaefer.de>]
508 *) New make target "install_html_docs" installs HTML renditions of the
510 [Oliver Tappe <zooey@hirschkaefer.de>]
512 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
513 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
514 support key and parameter generation and add initial key generation
515 functionality for RSA.
518 *) Add functions for main EVP_PKEY_method operations. The undocumented
519 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
520 EVP_PKEY_{encrypt,decrypt}_old.
523 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
524 key API, doesn't do much yet.
527 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
528 public key algorithms. New option to openssl utility:
529 "list-public-key-algorithms" to print out info.
532 *) Implement the Supported Elliptic Curves Extension for
533 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
536 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
537 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
540 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
541 utilities such as rsa, dsa, dsaparam etc except they process any key
545 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
546 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
547 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
551 *) Initial support for pluggable public key ASN1.
552 De-spaghettify the public key ASN1 handling. Move public and private
553 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
554 algorithm specific handling to a single module within the relevant
555 algorithm directory. Add functions to allow (near) opaque processing
556 of public and private key structures.
559 *) Implement the Supported Point Formats Extension for
560 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
563 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
564 for the psk identity [hint] and the psk callback functions to the
565 SSL_SESSION, SSL and SSL_CTX structure.
568 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
572 SSL_CTX_use_psk_identity_hint
573 SSL_get_psk_identity_hint
575 SSL_use_psk_identity_hint
577 [Mika Kousa and Pasi Eronen of Nokia Corporation]
579 *) Add RFC 3161 compliant time stamp request creation, response generation
580 and response verification functionality.
581 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
583 *) Add initial support for TLS extensions, specifically for the server_name
584 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
585 have new members for a host name. The SSL data structure has an
586 additional member SSL_CTX *initial_ctx so that new sessions can be
587 stored in that context to allow for session resumption, even after the
588 SSL has been switched to a new SSL_CTX in reaction to a client's
589 server_name extension.
591 New functions (subject to change):
594 SSL_get_servername_type()
597 New CTRL codes and macros (subject to change):
599 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
600 - SSL_CTX_set_tlsext_servername_callback()
601 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
602 - SSL_CTX_set_tlsext_servername_arg()
603 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
605 openssl s_client has a new '-servername ...' option.
607 openssl s_server has new options '-servername_host ...', '-cert2 ...',
608 '-key2 ...', '-servername_fatal' (subject to change). This allows
609 testing the HostName extension for a specific single host name ('-cert'
610 and '-key' remain fallbacks for handshakes without HostName
611 negotiation). If the unrecogninzed_name alert has to be sent, this by
612 default is a warning; it becomes fatal with the '-servername_fatal'
615 [Peter Sylvester, Remy Allais, Christophe Renou]
617 *) Whirlpool hash implementation is added.
620 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
621 bn(64,32). Because of instruction set limitations it doesn't have
622 any negative impact on performance. This was done mostly in order
623 to make it possible to share assembler modules, such as bn_mul_mont
624 implementations, between 32- and 64-bit builds without hassle.
627 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
628 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
632 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
633 dedicated Montgomery multiplication procedure, is introduced.
634 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
635 "64-bit" performance on certain 32-bit targets.
638 *) New option SSL_OP_NO_COMP to disable use of compression selectively
639 in SSL structures. New SSL ctrl to set maximum send fragment size.
640 Save memory by seeting the I/O buffer sizes dynamically instead of
641 using the maximum available value.
644 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
645 in addition to the text details.
648 *) Very, very preliminary EXPERIMENTAL support for printing of general
649 ASN1 structures. This currently produces rather ugly output and doesn't
650 handle several customised structures at all.
653 *) Integrated support for PVK file format and some related formats such
654 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
655 these in the 'rsa' and 'dsa' utilities.
658 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
661 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
662 place for the (very old) "NETSCAPE" format certificates which are now
663 handled using new ASN1 code equivalents.
666 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
667 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
668 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
671 *) Modify CRL distribution points extension code to print out previously
672 unsupported fields. Enhance extension setting code to allow setting of
676 *) Add print and set support for Issuing Distribution Point CRL extension.
679 *) Change 'Configure' script to enable Camellia by default.
682 Changes between 0.9.8g and 0.9.8h [xx XXX xxxx]
684 *) Add TLS session ticket callback. This allows an application to set
685 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
686 values. This is useful for key rollover for example where several key
687 sets may exist with different names.
690 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
691 This was broken until now in 0.9.8 releases, such that the only way
692 a registered ENGINE could be used (assuming it initialises
693 successfully on the host) was to explicitly set it as the default
694 for the relevant algorithms. This is in contradiction with 0.9.7
695 behaviour and the documentation. With this fix, when an ENGINE is
696 registered into a given algorithm's table of implementations, the
697 'uptodate' flag is reset so that auto-discovery will be used next
698 time a new context for that algorithm attempts to select an
700 [Ian Lister (tweaked by Geoff Thorpe)]
702 *) Update the GMP engine glue to do direct copies between BIGNUM and
703 mpz_t when openssl and GMP use the same limb size. Otherwise the
704 existing "conversion via a text string export" trick is still used.
705 [Paul Sheer <paulsheer@gmail.com>, Geoff Thorpe]
707 *) Zlib compression BIO. This is a filter BIO which compressed and
708 uncompresses any data passed through it.
711 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
712 RFC3394 compatible AES key wrapping.
715 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
716 sets string data without copying. X509_ALGOR_set0() and
717 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
718 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
719 from an X509_ATTRIBUTE structure optionally checking it occurs only
720 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
724 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
725 to get the expected BN_FLG_CONSTTIME behavior.
726 [Bodo Moeller (Google)]
730 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
731 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
732 - added some more tests to do_tests.pl
733 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
734 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
735 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
736 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
737 - various changes to netware.pl to enable gcc-cross builds on Win32
739 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
740 - various changes to fix missing prototype warnings
741 - fixed x86nasm.pl to create correct asm files for NASM COFF output
742 - added AES, WHIRLPOOL and CPUID assembler code to build files
743 - added missing AES assembler make rules to mk1mf.pl
744 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
745 [Guenter Knauf <eflash@gmx.net>]
747 *) Implement certificate status request TLS extension defined in RFC3546.
748 A client can set the appropriate parameters and receive the encoded
749 OCSP response via a callback. A server can query the supplied parameters
750 and set the encoded OCSP response in the callback. Add simplified examples
751 to s_client and s_server.
754 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
757 + Binary incompatibility of ssl_ctx_st structure
758 + DTLS interoperation with non-compliant servers
759 + Don't call get_session_cb() without proposed session
760 + Fix ia64 assembler code
761 [Andy Polyakov, Steve Henson]
763 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
765 *) DTLS Handshake overhaul. There were longstanding issues with
766 OpenSSL DTLS implementation, which were making it impossible for
767 RFC 4347 compliant client to communicate with OpenSSL server.
768 Unfortunately just fixing these incompatibilities would "cut off"
769 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
770 server keeps tolerating non RFC compliant syntax. The opposite is
771 not true, 0.9.8f client can not communicate with earlier server.
772 This update even addresses CVE-2007-4995.
775 *) Changes to avoid need for function casts in OpenSSL: some compilers
776 (gcc 4.2 and later) reject their use.
777 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
780 *) Add RFC4507 support to OpenSSL. This includes the corrections in
781 RFC4507bis. The encrypted ticket format is an encrypted encoded
782 SSL_SESSION structure, that way new session features are automatically
785 If a client application caches session in an SSL_SESSION structure
786 support is transparent because tickets are now stored in the encoded
789 The SSL_CTX structure automatically generates keys for ticket
790 protection in servers so again support should be possible
791 with no application modification.
793 If a client or server wishes to disable RFC4507 support then the option
794 SSL_OP_NO_TICKET can be set.
796 Add a TLS extension debugging callback to allow the contents of any client
797 or server extensions to be examined.
799 This work was sponsored by Google.
802 *) Add initial support for TLS extensions, specifically for the server_name
803 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
804 have new members for a host name. The SSL data structure has an
805 additional member SSL_CTX *initial_ctx so that new sessions can be
806 stored in that context to allow for session resumption, even after the
807 SSL has been switched to a new SSL_CTX in reaction to a client's
808 server_name extension.
810 New functions (subject to change):
813 SSL_get_servername_type()
816 New CTRL codes and macros (subject to change):
818 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
819 - SSL_CTX_set_tlsext_servername_callback()
820 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
821 - SSL_CTX_set_tlsext_servername_arg()
822 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
824 openssl s_client has a new '-servername ...' option.
826 openssl s_server has new options '-servername_host ...', '-cert2 ...',
827 '-key2 ...', '-servername_fatal' (subject to change). This allows
828 testing the HostName extension for a specific single host name ('-cert'
829 and '-key' remain fallbacks for handshakes without HostName
830 negotiation). If the unrecogninzed_name alert has to be sent, this by
831 default is a warning; it becomes fatal with the '-servername_fatal'
834 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
836 *) Add AES and SSE2 assembly language support to VC++ build.
839 *) Mitigate attack on final subtraction in Montgomery reduction.
842 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
843 (which previously caused an internal error).
846 *) Squeeze another 10% out of IGE mode when in != out.
849 *) AES IGE mode speedup.
850 [Dean Gaudet (Google)]
852 *) Add the Korean symmetric 128-bit cipher SEED (see
853 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
854 add SEED ciphersuites from RFC 4162:
856 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
857 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
858 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
859 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
861 To minimize changes between patchlevels in the OpenSSL 0.9.8
862 series, SEED remains excluded from compilation unless OpenSSL
863 is configured with 'enable-seed'.
866 *) Mitigate branch prediction attacks, which can be practical if a
867 single processor is shared, allowing a spy process to extract
868 information. For detailed background information, see
869 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
870 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
871 and Necessary Software Countermeasures"). The core of the change
872 are new versions BN_div_no_branch() and
873 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
874 respectively, which are slower, but avoid the security-relevant
875 conditional branches. These are automatically called by BN_div()
876 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
877 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
878 remove a conditional branch.
880 BN_FLG_CONSTTIME is the new name for the previous
881 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
882 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
883 in the exponent causes BN_mod_exp_mont() to use the alternative
884 implementation in BN_mod_exp_mont_consttime().) The old name
885 remains as a deprecated alias.
887 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
888 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
889 constant-time implementations for more than just exponentiation.
890 Here too the old name is kept as a deprecated alias.
892 BN_BLINDING_new() will now use BN_dup() for the modulus so that
893 the BN_BLINDING structure gets an independent copy of the
894 modulus. This means that the previous "BIGNUM *m" argument to
895 BN_BLINDING_new() and to BN_BLINDING_create_param() now
896 essentially becomes "const BIGNUM *m", although we can't actually
897 change this in the header file before 0.9.9. It allows
898 RSA_setup_blinding() to use BN_with_flags() on the modulus to
899 enable BN_FLG_CONSTTIME.
901 [Matthew D Wood (Intel Corp)]
903 *) In the SSL/TLS server implementation, be strict about session ID
904 context matching (which matters if an application uses a single
905 external cache for different purposes). Previously,
906 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
907 set. This did ensure strict client verification, but meant that,
908 with applications using a single external cache for quite
909 different requirements, clients could circumvent ciphersuite
910 restrictions for a given session ID context by starting a session
911 in a different context.
914 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
915 a ciphersuite string such as "DEFAULT:RSA" cannot enable
916 authentication-only ciphersuites.
919 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
921 *) Since AES128 and AES256 (and similarly Camellia128 and
922 Camellia256) share a single mask bit in the logic of
923 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
924 kludge to work properly if AES128 is available and AES256 isn't
925 (or if Camellia128 is available and Camellia256 isn't).
928 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
929 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
930 When a point or a seed is encoded in a BIT STRING, we need to
931 prevent the removal of trailing zero bits to get the proper DER
932 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
933 of a NamedBitList, for which trailing 0 bits need to be removed.)
936 *) Have SSL/TLS server implementation tolerate "mismatched" record
937 protocol version while receiving ClientHello even if the
938 ClientHello is fragmented. (The server can't insist on the
939 particular protocol version it has chosen before the ServerHello
940 message has informed the client about his choice.)
943 *) Add RFC 3779 support.
944 [Rob Austein for ARIN, Ben Laurie]
946 *) Load error codes if they are not already present instead of using a
947 static variable. This allows them to be cleanly unloaded and reloaded.
948 Improve header file function name parsing.
951 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
952 or CAPABILITY handshake as required by RFCs.
955 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
957 *) Introduce limits to prevent malicious keys being able to
958 cause a denial of service. (CVE-2006-2940)
959 [Steve Henson, Bodo Moeller]
961 *) Fix ASN.1 parsing of certain invalid structures that can result
962 in a denial of service. (CVE-2006-2937) [Steve Henson]
964 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
965 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
967 *) Fix SSL client code which could crash if connecting to a
968 malicious SSLv2 server. (CVE-2006-4343)
969 [Tavis Ormandy and Will Drewry, Google Security Team]
971 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
972 match only those. Before that, "AES256-SHA" would be interpreted
973 as a pattern and match "AES128-SHA" too (since AES128-SHA got
974 the same strength classification in 0.9.7h) as we currently only
975 have a single AES bit in the ciphersuite description bitmap.
976 That change, however, also applied to ciphersuite strings such as
977 "RC4-MD5" that intentionally matched multiple ciphersuites --
978 namely, SSL 2.0 ciphersuites in addition to the more common ones
979 from SSL 3.0/TLS 1.0.
981 So we change the selection algorithm again: Naming an explicit
982 ciphersuite selects this one ciphersuite, and any other similar
983 ciphersuite (same bitmap) from *other* protocol versions.
984 Thus, "RC4-MD5" again will properly select both the SSL 2.0
985 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
987 Since SSL 2.0 does not have any ciphersuites for which the
988 128/256 bit distinction would be relevant, this works for now.
989 The proper fix will be to use different bits for AES128 and
990 AES256, which would have avoided the problems from the beginning;
991 however, bits are scarce, so we can only do this in a new release
992 (not just a patchlevel) when we can change the SSL_CIPHER
993 definition to split the single 'unsigned long mask' bitmap into
994 multiple values to extend the available space.
998 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1000 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1001 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1003 *) Add AES IGE and biIGE modes.
1006 *) Change the Unix randomness entropy gathering to use poll() when
1007 possible instead of select(), since the latter has some
1008 undesirable limitations.
1009 [Darryl Miles via Richard Levitte and Bodo Moeller]
1011 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1012 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1013 cannot be implicitly activated as part of, e.g., the "AES" alias.
1014 However, please upgrade to OpenSSL 0.9.9[-dev] for
1015 non-experimental use of the ECC ciphersuites to get TLS extension
1016 support, which is required for curve and point format negotiation
1017 to avoid potential handshake problems.
1020 *) Disable rogue ciphersuites:
1022 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1023 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1024 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1026 The latter two were purportedly from
1027 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1030 Also deactivate the remaining ciphersuites from
1031 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1032 unofficial, and the ID has long expired.
1035 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1036 dual-core machines) and other potential thread-safety issues.
1039 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1040 versions), which is now available for royalty-free use
1041 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1042 Also, add Camellia TLS ciphersuites from RFC 4132.
1044 To minimize changes between patchlevels in the OpenSSL 0.9.8
1045 series, Camellia remains excluded from compilation unless OpenSSL
1046 is configured with 'enable-camellia'.
1049 *) Disable the padding bug check when compression is in use. The padding
1050 bug check assumes the first packet is of even length, this is not
1051 necessarily true if compresssion is enabled and can result in false
1052 positives causing handshake failure. The actual bug test is ancient
1053 code so it is hoped that implementations will either have fixed it by
1054 now or any which still have the bug do not support compression.
1057 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1059 *) When applying a cipher rule check to see if string match is an explicit
1060 cipher suite and only match that one cipher suite if it is.
1063 *) Link in manifests for VC++ if needed.
1064 [Austin Ziegler <halostatue@gmail.com>]
1066 *) Update support for ECC-based TLS ciphersuites according to
1067 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1068 TLS extensions, which are supported starting with the 0.9.9
1069 branch, not in the OpenSSL 0.9.8 branch).
1072 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1073 opaque EVP_CIPHER_CTX handling.
1076 *) Fixes and enhancements to zlib compression code. We now only use
1077 "zlib1.dll" and use the default __cdecl calling convention on Win32
1078 to conform with the standards mentioned here:
1079 http://www.zlib.net/DLL_FAQ.txt
1080 Static zlib linking now works on Windows and the new --with-zlib-include
1081 --with-zlib-lib options to Configure can be used to supply the location
1082 of the headers and library. Gracefully handle case where zlib library
1086 *) Several fixes and enhancements to the OID generation code. The old code
1087 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1088 handle numbers larger than ULONG_MAX, truncated printing and had a
1089 non standard OBJ_obj2txt() behaviour.
1092 *) Add support for building of engines under engine/ as shared libraries
1093 under VC++ build system.
1096 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1097 Hopefully, we will not see any false combination of paths any more.
1100 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1102 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1103 (part of SSL_OP_ALL). This option used to disable the
1104 countermeasure against man-in-the-middle protocol-version
1105 rollback in the SSL 2.0 server implementation, which is a bad
1106 idea. (CVE-2005-2969)
1108 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1109 for Information Security, National Institute of Advanced Industrial
1110 Science and Technology [AIST], Japan)]
1112 *) Add two function to clear and return the verify parameter flags.
1115 *) Keep cipherlists sorted in the source instead of sorting them at
1116 runtime, thus removing the need for a lock.
1119 *) Avoid some small subgroup attacks in Diffie-Hellman.
1120 [Nick Mathewson and Ben Laurie]
1122 *) Add functions for well-known primes.
1125 *) Extended Windows CE support.
1126 [Satoshi Nakamura and Andy Polyakov]
1128 *) Initialize SSL_METHOD structures at compile time instead of during
1129 runtime, thus removing the need for a lock.
1132 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1133 attempting to decrypt each encrypted key in turn. Add support to
1137 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1139 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1142 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1145 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1146 key into the same file any more.
1149 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1152 *) Add -utf8 command line and config file option to 'ca'.
1153 [Stefan <stf@udoma.org]
1155 *) Removed the macro des_crypt(), as it seems to conflict with some
1156 libraries. Use DES_crypt().
1159 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1160 involves renaming the source and generated shared-libs for
1161 both. The engines will accept the corrected or legacy ids
1162 ('ncipher' and '4758_cca' respectively) when binding. NB,
1163 this only applies when building 'shared'.
1164 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1166 *) Add attribute functions to EVP_PKEY structure. Modify
1167 PKCS12_create() to recognize a CSP name attribute and
1168 use it. Make -CSP option work again in pkcs12 utility.
1171 *) Add new functionality to the bn blinding code:
1172 - automatic re-creation of the BN_BLINDING parameters after
1173 a fixed number of uses (currently 32)
1174 - add new function for parameter creation
1175 - introduce flags to control the update behaviour of the
1176 BN_BLINDING parameters
1177 - hide BN_BLINDING structure
1178 Add a second BN_BLINDING slot to the RSA structure to improve
1179 performance when a single RSA object is shared among several
1183 *) Add support for DTLS.
1184 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1186 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1187 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1190 *) Remove buggy and incompletet DH cert support from
1191 ssl/ssl_rsa.c and ssl/s3_both.c
1194 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1195 the apps/openssl applications.
1198 *) Compile clean with "-Wall -Wmissing-prototypes
1199 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1200 DEBUG_SAFESTACK must also be set.
1203 *) Change ./Configure so that certain algorithms can be disabled by default.
1204 The new counterpiece to "no-xxx" is "enable-xxx".
1206 The patented RC5 and MDC2 algorithms will now be disabled unless
1207 "enable-rc5" and "enable-mdc2", respectively, are specified.
1209 (IDEA remains enabled despite being patented. This is because IDEA
1210 is frequently required for interoperability, and there is no license
1211 fee for non-commercial use. As before, "no-idea" can be used to
1212 avoid this algorithm.)
1216 *) Add processing of proxy certificates (see RFC 3820). This work was
1217 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1218 EGEE (Enabling Grids for E-science in Europe).
1221 *) RC4 performance overhaul on modern architectures/implementations, such
1222 as Intel P4, IA-64 and AMD64.
1225 *) New utility extract-section.pl. This can be used specify an alternative
1226 section number in a pod file instead of having to treat each file as
1227 a separate case in Makefile. This can be done by adding two lines to the
1230 =for comment openssl_section:XXX
1232 The blank line is mandatory.
1236 *) New arguments -certform, -keyform and -pass for s_client and s_server
1237 to allow alternative format key and certificate files and passphrase
1241 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1242 update associated structures and add various utility functions.
1244 Add new policy related verify parameters, include policy checking in
1245 standard verify code. Enhance 'smime' application with extra parameters
1246 to support policy checking and print out.
1249 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1250 Nehemiah processors. These extensions support AES encryption in hardware
1251 as well as RNG (though RNG support is currently disabled).
1252 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1254 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1257 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1258 [Andy Polyakov and a number of other people]
1260 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1261 implementation contributed by IBM.
1262 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1264 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1265 exponent rather than 'unsigned long'. There is a corresponding change to
1266 the new 'rsa_keygen' element of the RSA_METHOD structure.
1267 [Jelte Jansen, Geoff Thorpe]
1269 *) Functionality for creating the initial serial number file is now
1270 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1272 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1273 number file to 1, which is bound to cause problems. To avoid
1274 the problems while respecting compatibility between different 0.9.7
1275 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1276 CA.pl for serial number initialization. With the new release 0.9.8,
1277 we can fix the problem directly in the 'ca' utility.)
1280 *) Reduced header interdepencies by declaring more opaque objects in
1281 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1282 give fewer recursive includes, which could break lazy source code - so
1283 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1284 developers should define this symbol when building and using openssl to
1285 ensure they track the recommended behaviour, interfaces, [etc], but
1286 backwards-compatible behaviour prevails when this isn't defined.
1289 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1292 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1293 This will generate a random key of the appropriate length based on the
1294 cipher context. The EVP_CIPHER can provide its own random key generation
1295 routine to support keys of a specific form. This is used in the des and
1296 3des routines to generate a key of the correct parity. Update S/MIME
1297 code to use new functions and hence generate correct parity DES keys.
1298 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1299 valid (weak or incorrect parity).
1302 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1303 as looking them up. This is useful when the verified structure may contain
1304 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1305 present unless the new PKCS7_NO_CRL flag is asserted.
1308 *) Extend ASN1 oid configuration module. It now additionally accepts the
1311 shortName = some long name, 1.2.3.4
1314 *) Reimplemented the BN_CTX implementation. There is now no more static
1315 limitation on the number of variables it can handle nor the depth of the
1316 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1317 information can now expand as required, and rather than having a single
1318 static array of bignums, BN_CTX now uses a linked-list of such arrays
1319 allowing it to expand on demand whilst maintaining the usefulness of
1320 BN_CTX's "bundling".
1323 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1324 to allow all RSA operations to function using a single BN_CTX.
1327 *) Preliminary support for certificate policy evaluation and checking. This
1328 is initially intended to pass the tests outlined in "Conformance Testing
1329 of Relying Party Client Certificate Path Processing Logic" v1.07.
1332 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1333 remained unused and not that useful. A variety of other little bignum
1334 tweaks and fixes have also been made continuing on from the audit (see
1338 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1339 associated ASN1, EVP and SSL functions and old ASN1 macros.
1342 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1343 and this should never fail. So the return value from the use of
1344 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1345 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1348 *) BN_CTX_get() should return zero-valued bignums, providing the same
1349 initialised value as BN_new().
1350 [Geoff Thorpe, suggested by Ulf Möller]
1352 *) Support for inhibitAnyPolicy certificate extension.
1355 *) An audit of the BIGNUM code is underway, for which debugging code is
1356 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1357 is considered valid when processing BIGNUMs, and causes execution to
1358 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1359 further steps are taken to deliberately pollute unused data in BIGNUM
1360 structures to try and expose faulty code further on. For now, openssl will
1361 (in its default mode of operation) continue to tolerate the inconsistent
1362 forms that it has tolerated in the past, but authors and packagers should
1363 consider trying openssl and their own applications when compiled with
1364 these debugging symbols defined. It will help highlight potential bugs in
1365 their own code, and will improve the test coverage for OpenSSL itself. At
1366 some point, these tighter rules will become openssl's default to improve
1367 maintainability, though the assert()s and other overheads will remain only
1368 in debugging configurations. See bn.h for more details.
1369 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1371 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1372 that can only be obtained through BN_CTX_new() (which implicitly
1373 initialises it). The presence of this function only made it possible
1374 to overwrite an existing structure (and cause memory leaks).
1377 *) Because of the callback-based approach for implementing LHASH as a
1378 template type, lh_insert() adds opaque objects to hash-tables and
1379 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1380 to clean up those corresponding objects before destroying the hash table
1381 (and losing the object pointers). So some over-zealous constifications in
1382 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1383 objects as "const" and the lh_doall[_arg] callback wrappers are not
1384 prototyped to have "const" restrictions on the object pointers they are
1385 given (and so aren't required to cast them away any more).
1388 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1389 (speed) prefers to use its own implementation. The two implementations
1390 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1391 its object type properly exposed (MS_TM) instead of casting to/from "char
1392 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1393 aren't necessarily the greatest nomenclatures - but this is what was used
1394 internally to the implementation so I've used that for now.
1397 *) Ensure that deprecated functions do not get compiled when
1398 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1399 the self-tests were still using deprecated key-generation functions so
1400 these have been updated also.
1403 *) Reorganise PKCS#7 code to separate the digest location functionality
1404 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1405 New function PKCS7_set_digest() to set the digest type for PKCS#7
1406 digestedData type. Add additional code to correctly generate the
1407 digestedData type and add support for this type in PKCS7 initialization
1411 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1412 structure of type "other".
1415 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1416 sure the loop does correctly stop and breaking ("division by zero")
1417 modulus operations are not performed. The (pre-generated) prime
1418 table crypto/bn/bn_prime.h was already correct, but it could not be
1419 re-generated on some platforms because of the "division by zero"
1420 situation in the script.
1421 [Ralf S. Engelschall]
1423 *) Update support for ECC-based TLS ciphersuites according to
1424 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1425 SHA-1 now is only used for "small" curves (where the
1426 representation of a field element takes up to 24 bytes); for
1427 larger curves, the field element resulting from ECDH is directly
1428 used as premaster secret.
1429 [Douglas Stebila (Sun Microsystems Laboratories)]
1431 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1432 curve secp160r1 to the tests.
1433 [Douglas Stebila (Sun Microsystems Laboratories)]
1435 *) Add the possibility to load symbols globally with DSO.
1436 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1438 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1439 control of the error stack.
1442 *) Add support for STORE in ENGINE.
1445 *) Add the STORE type. The intention is to provide a common interface
1446 to certificate and key stores, be they simple file-based stores, or
1447 HSM-type store, or LDAP stores, or...
1448 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1451 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1452 pass a list of arguments to any function as well as provide a way
1453 for a function to pass data back to the caller.
1456 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1457 works like BUF_strdup() but can be used to duplicate a portion of
1458 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1462 *) Add the function sk_find_ex() which works like sk_find(), but will
1463 return an index to an element even if an exact match couldn't be
1464 found. The index is guaranteed to point at the element where the
1465 searched-for key would be inserted to preserve sorting order.
1468 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1469 takes an extra flags argument for optional functionality. Currently,
1470 the following flags are defined:
1472 OBJ_BSEARCH_VALUE_ON_NOMATCH
1473 This one gets OBJ_bsearch_ex() to return a pointer to the first
1474 element where the comparing function returns a negative or zero
1477 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1478 This one gets OBJ_bsearch_ex() to return a pointer to the first
1479 element where the comparing function returns zero. This is useful
1480 if there are more than one element where the comparing function
1484 *) Make it possible to create self-signed certificates with 'openssl ca'
1485 in such a way that the self-signed certificate becomes part of the
1486 CA database and uses the same mechanisms for serial number generation
1487 as all other certificate signing. The new flag '-selfsign' enables
1488 this functionality. Adapt CA.sh and CA.pl.in.
1491 *) Add functionality to check the public key of a certificate request
1492 against a given private. This is useful to check that a certificate
1493 request can be signed by that key (self-signing).
1496 *) Make it possible to have multiple active certificates with the same
1497 subject in the CA index file. This is done only if the keyword
1498 'unique_subject' is set to 'no' in the main CA section (default
1499 if 'CA_default') of the configuration file. The value is saved
1500 with the database itself in a separate index attribute file,
1501 named like the index file with '.attr' appended to the name.
1504 *) Generate muti valued AVAs using '+' notation in config files for
1508 *) Support for nameConstraints certificate extension.
1511 *) Support for policyConstraints certificate extension.
1514 *) Support for policyMappings certificate extension.
1517 *) Make sure the default DSA_METHOD implementation only uses its
1518 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1519 and change its own handlers to be NULL so as to remove unnecessary
1520 indirection. This lets alternative implementations fallback to the
1521 default implementation more easily.
1524 *) Support for directoryName in GeneralName related extensions
1528 *) Make it possible to link applications using Makefile.shared.
1529 Make that possible even when linking against static libraries!
1532 *) Support for single pass processing for S/MIME signing. This now
1533 means that S/MIME signing can be done from a pipe, in addition
1534 cleartext signing (multipart/signed type) is effectively streaming
1535 and the signed data does not need to be all held in memory.
1537 This is done with a new flag PKCS7_STREAM. When this flag is set
1538 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1539 is done after the data is output (and digests calculated) in
1540 SMIME_write_PKCS7().
1543 *) Add full support for -rpath/-R, both in shared libraries and
1544 applications, at least on the platforms where it's known how
1548 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1549 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1550 will now compute a table of multiples of the generator that
1551 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1552 faster (notably in the case of a single point multiplication,
1553 scalar * generator).
1554 [Nils Larsch, Bodo Moeller]
1556 *) IPv6 support for certificate extensions. The various extensions
1557 which use the IP:a.b.c.d can now take IPv6 addresses using the
1558 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1562 *) Added an ENGINE that implements RSA by performing private key
1563 exponentiations with the GMP library. The conversions to and from
1564 GMP's mpz_t format aren't optimised nor are any montgomery forms
1565 cached, and on x86 it appears OpenSSL's own performance has caught up.
1566 However there are likely to be other architectures where GMP could
1567 provide a boost. This ENGINE is not built in by default, but it can be
1568 specified at Configure time and should be accompanied by the necessary
1569 linker additions, eg;
1570 ./config -DOPENSSL_USE_GMP -lgmp
1573 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1574 testing availability of engines with "-t" - the old behaviour is
1575 produced by increasing the feature's verbosity with "-tt".
1578 *) ECDSA routines: under certain error conditions uninitialized BN objects
1579 could be freed. Solution: make sure initialization is performed early
1580 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1584 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1585 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1586 software implementations. For DSA and DH, parameter generation can
1587 also be overriden by providing the appropriate method callbacks.
1590 *) Change the "progress" mechanism used in key-generation and
1591 primality testing to functions that take a new BN_GENCB pointer in
1592 place of callback/argument pairs. The new API functions have "_ex"
1593 postfixes and the older functions are reimplemented as wrappers for
1594 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1595 declarations of the old functions to help (graceful) attempts to
1596 migrate to the new functions. Also, the new key-generation API
1597 functions operate on a caller-supplied key-structure and return
1598 success/failure rather than returning a key or NULL - this is to
1599 help make "keygen" another member function of RSA_METHOD etc.
1601 Example for using the new callback interface:
1603 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1607 BN_GENCB_set(&my_cb, my_callback, my_arg);
1609 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1610 /* For the meaning of a, b in calls to my_callback(), see the
1611 * documentation of the function that calls the callback.
1612 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1613 * my_callback should return 1 if it wants BN_is_prime_ex()
1614 * to continue, or 0 to stop.
1619 *) Change the ZLIB compression method to be stateful, and make it
1620 available to TLS with the number defined in
1621 draft-ietf-tls-compression-04.txt.
1624 *) Add the ASN.1 structures and functions for CertificatePair, which
1625 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1627 CertificatePair ::= SEQUENCE {
1628 forward [0] Certificate OPTIONAL,
1629 reverse [1] Certificate OPTIONAL,
1630 -- at least one of the pair shall be present -- }
1632 Also implement the PEM functions to read and write certificate
1633 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1635 This needed to be defined, mostly for the sake of the LDAP
1636 attribute crossCertificatePair, but may prove useful elsewhere as
1640 *) Make it possible to inhibit symlinking of shared libraries in
1641 Makefile.shared, for Cygwin's sake.
1644 *) Extend the BIGNUM API by creating a function
1645 void BN_set_negative(BIGNUM *a, int neg);
1646 and a macro that behave like
1647 int BN_is_negative(const BIGNUM *a);
1649 to avoid the need to access 'a->neg' directly in applications.
1652 *) Implement fast modular reduction for pseudo-Mersenne primes
1653 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1654 EC_GROUP_new_curve_GFp() will now automatically use this
1656 [Nils Larsch <nla@trustcenter.de>]
1658 *) Add new lock type (CRYPTO_LOCK_BN).
1661 *) Change the ENGINE framework to automatically load engines
1662 dynamically from specific directories unless they could be
1663 found to already be built in or loaded. Move all the
1664 current engines except for the cryptodev one to a new
1666 The engines in engines/ are built as shared libraries if
1667 the "shared" options was given to ./Configure or ./config.
1668 Otherwise, they are inserted in libcrypto.a.
1669 /usr/local/ssl/engines is the default directory for dynamic
1670 engines, but that can be overriden at configure time through
1671 the usual use of --prefix and/or --openssldir, and at run
1672 time with the environment variable OPENSSL_ENGINES.
1673 [Geoff Thorpe and Richard Levitte]
1675 *) Add Makefile.shared, a helper makefile to build shared
1676 libraries. Addapt Makefile.org.
1679 *) Add version info to Win32 DLLs.
1680 [Peter 'Luna' Runestig" <peter@runestig.com>]
1682 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1683 can be added using this API to created arbitrary PKCS#12
1684 files while avoiding the low level API.
1686 New options to PKCS12_create(), key or cert can be NULL and
1687 will then be omitted from the output file. The encryption
1688 algorithm NIDs can be set to -1 for no encryption, the mac
1689 iteration count can be set to 0 to omit the mac.
1691 Enhance pkcs12 utility by making the -nokeys and -nocerts
1692 options work when creating a PKCS#12 file. New option -nomac
1693 to omit the mac, NONE can be set for an encryption algorithm.
1694 New code is modified to use the enhanced PKCS12_create()
1695 instead of the low level API.
1698 *) Extend ASN1 encoder to support indefinite length constructed
1699 encoding. This can output sequences tags and octet strings in
1700 this form. Modify pk7_asn1.c to support indefinite length
1701 encoding. This is experimental and needs additional code to
1702 be useful, such as an ASN1 bio and some enhanced streaming
1705 Extend template encode functionality so that tagging is passed
1706 down to the template encoder.
1709 *) Let 'openssl req' fail if an argument to '-newkey' is not
1710 recognized instead of using RSA as a default.
1713 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1714 As these are not official, they are not included in "ALL";
1715 the "ECCdraft" ciphersuite group alias can be used to select them.
1716 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1718 *) Add ECDH engine support.
1719 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1721 *) Add ECDH in new directory crypto/ecdh/.
1722 [Douglas Stebila (Sun Microsystems Laboratories)]
1724 *) Let BN_rand_range() abort with an error after 100 iterations
1725 without success (which indicates a broken PRNG).
1728 *) Change BN_mod_sqrt() so that it verifies that the input value
1729 is really the square of the return value. (Previously,
1730 BN_mod_sqrt would show GIGO behaviour.)
1733 *) Add named elliptic curves over binary fields from X9.62, SECG,
1734 and WAP/WTLS; add OIDs that were still missing.
1736 [Sheueling Chang Shantz and Douglas Stebila
1737 (Sun Microsystems Laboratories)]
1739 *) Extend the EC library for elliptic curves over binary fields
1740 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1743 EC_GF2m_simple_method
1747 EC_GROUP_new_curve_GF2m
1748 EC_GROUP_set_curve_GF2m
1749 EC_GROUP_get_curve_GF2m
1750 EC_POINT_set_affine_coordinates_GF2m
1751 EC_POINT_get_affine_coordinates_GF2m
1752 EC_POINT_set_compressed_coordinates_GF2m
1754 Point compression for binary fields is disabled by default for
1755 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1758 As binary polynomials are represented as BIGNUMs, various members
1759 of the EC_GROUP and EC_POINT data structures can be shared
1760 between the implementations for prime fields and binary fields;
1761 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1762 are essentially identical to their ..._GFp counterparts.
1763 (For simplicity, the '..._GFp' prefix has been dropped from
1764 various internal method names.)
1766 An internal 'field_div' method (similar to 'field_mul' and
1767 'field_sqr') has been added; this is used only for binary fields.
1769 [Sheueling Chang Shantz and Douglas Stebila
1770 (Sun Microsystems Laboratories)]
1772 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1773 through methods ('mul', 'precompute_mult').
1775 The generic implementations (now internally called 'ec_wNAF_mul'
1776 and 'ec_wNAF_precomputed_mult') remain the default if these
1777 methods are undefined.
1779 [Sheueling Chang Shantz and Douglas Stebila
1780 (Sun Microsystems Laboratories)]
1782 *) New function EC_GROUP_get_degree, which is defined through
1783 EC_METHOD. For curves over prime fields, this returns the bit
1784 length of the modulus.
1786 [Sheueling Chang Shantz and Douglas Stebila
1787 (Sun Microsystems Laboratories)]
1789 *) New functions EC_GROUP_dup, EC_POINT_dup.
1790 (These simply call ..._new and ..._copy).
1792 [Sheueling Chang Shantz and Douglas Stebila
1793 (Sun Microsystems Laboratories)]
1795 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1796 Polynomials are represented as BIGNUMs (where the sign bit is not
1797 used) in the following functions [macros]:
1800 BN_GF2m_sub [= BN_GF2m_add]
1801 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1802 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1803 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1805 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1806 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1807 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1808 BN_GF2m_cmp [= BN_ucmp]
1810 (Note that only the 'mod' functions are actually for fields GF(2^m).
1811 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1813 For some functions, an the irreducible polynomial defining a
1814 field can be given as an 'unsigned int[]' with strictly
1815 decreasing elements giving the indices of those bits that are set;
1816 i.e., p[] represents the polynomial
1817 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1819 p[0] > p[1] > ... > p[k] = 0.
1820 This applies to the following functions:
1825 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1826 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1828 BN_GF2m_mod_sqrt_arr
1829 BN_GF2m_mod_solve_quad_arr
1833 Conversion can be performed by the following functions:
1838 bntest.c has additional tests for binary polynomial arithmetic.
1840 Two implementations for BN_GF2m_mod_div() are available.
1841 The default algorithm simply uses BN_GF2m_mod_inv() and
1842 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1843 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1844 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1846 [Sheueling Chang Shantz and Douglas Stebila
1847 (Sun Microsystems Laboratories)]
1849 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1850 functionality is disabled at compile-time.
1851 [Douglas Stebila <douglas.stebila@sun.com>]
1853 *) Change default behaviour of 'openssl asn1parse' so that more
1854 information is visible when viewing, e.g., a certificate:
1856 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1857 mode the content of non-printable OCTET STRINGs is output in a
1858 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1859 avoid the appearance of a printable string.
1860 [Nils Larsch <nla@trustcenter.de>]
1862 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1864 EC_GROUP_set_asn1_flag()
1865 EC_GROUP_get_asn1_flag()
1866 EC_GROUP_set_point_conversion_form()
1867 EC_GROUP_get_point_conversion_form()
1868 These control ASN1 encoding details:
1869 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1870 has been set to OPENSSL_EC_NAMED_CURVE.
1871 - Points are encoded in uncompressed form by default; options for
1872 asn1_for are as for point2oct, namely
1873 POINT_CONVERSION_COMPRESSED
1874 POINT_CONVERSION_UNCOMPRESSED
1875 POINT_CONVERSION_HYBRID
1877 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1880 EC_GROUP_get0_seed()
1881 EC_GROUP_get_seed_len()
1882 This is used only for ASN1 purposes (so far).
1883 [Nils Larsch <nla@trustcenter.de>]
1885 *) Add 'field_type' member to EC_METHOD, which holds the NID
1886 of the appropriate field type OID. The new function
1887 EC_METHOD_get_field_type() returns this value.
1888 [Nils Larsch <nla@trustcenter.de>]
1893 EC_POINT_point2hex()
1894 EC_POINT_hex2point()
1895 providing useful interfaces to EC_POINT_point2oct() and
1896 EC_POINT_oct2point().
1897 [Nils Larsch <nla@trustcenter.de>]
1899 *) Change internals of the EC library so that the functions
1900 EC_GROUP_set_generator()
1901 EC_GROUP_get_generator()
1902 EC_GROUP_get_order()
1903 EC_GROUP_get_cofactor()
1904 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1905 to methods, which would lead to unnecessary code duplication when
1906 adding different types of curves.
1907 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1909 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1910 arithmetic, and such that modified wNAFs are generated
1911 (which avoid length expansion in many cases).
1914 *) Add a function EC_GROUP_check_discriminant() (defined via
1915 EC_METHOD) that verifies that the curve discriminant is non-zero.
1917 Add a function EC_GROUP_check() that makes some sanity tests
1918 on a EC_GROUP, its generator and order. This includes
1919 EC_GROUP_check_discriminant().
1920 [Nils Larsch <nla@trustcenter.de>]
1922 *) Add ECDSA in new directory crypto/ecdsa/.
1924 Add applications 'openssl ecparam' and 'openssl ecdsa'
1925 (these are based on 'openssl dsaparam' and 'openssl dsa').
1927 ECDSA support is also included in various other files across the
1928 library. Most notably,
1929 - 'openssl req' now has a '-newkey ecdsa:file' option;
1930 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1931 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1932 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1933 them suitable for ECDSA where domain parameters must be
1934 extracted before the specific public key;
1935 - ECDSA engine support has been added.
1936 [Nils Larsch <nla@trustcenter.de>]
1938 *) Include some named elliptic curves, and add OIDs from X9.62,
1939 SECG, and WAP/WTLS. Each curve can be obtained from the new
1941 EC_GROUP_new_by_curve_name(),
1942 and the list of available named curves can be obtained with
1943 EC_get_builtin_curves().
1944 Also add a 'curve_name' member to EC_GROUP objects, which can be
1946 EC_GROUP_set_curve_name()
1947 EC_GROUP_get_curve_name()
1948 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1950 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1951 was actually never needed) and in BN_mul(). The removal in BN_mul()
1952 required a small change in bn_mul_part_recursive() and the addition
1953 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1954 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1955 bn_sub_words() and bn_add_words() except they take arrays with
1959 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1961 *) In the SSL/TLS server implementation, be strict about session ID
1962 context matching (which matters if an application uses a single
1963 external cache for different purposes). Previously,
1964 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1965 set. This did ensure strict client verification, but meant that,
1966 with applications using a single external cache for quite
1967 different requirements, clients could circumvent ciphersuite
1968 restrictions for a given session ID context by starting a session
1969 in a different context.
1972 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1974 *) Cleanse PEM buffers before freeing them since they may contain
1976 [Benjamin Bennett <ben@psc.edu>]
1978 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1979 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1980 authentication-only ciphersuites.
1983 *) Since AES128 and AES256 share a single mask bit in the logic of
1984 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1985 kludge to work properly if AES128 is available and AES256 isn't.
1988 *) Expand security boundary to match 1.1.1 module.
1991 *) Remove redundant features: hash file source, editing of test vectors
1992 modify fipsld to use external fips_premain.c signature.
1995 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1996 run algorithm test programs.
1999 *) Make algorithm test programs more tolerant of whitespace.
2002 *) Have SSL/TLS server implementation tolerate "mismatched" record
2003 protocol version while receiving ClientHello even if the
2004 ClientHello is fragmented. (The server can't insist on the
2005 particular protocol version it has chosen before the ServerHello
2006 message has informed the client about his choice.)
2009 *) Load error codes if they are not already present instead of using a
2010 static variable. This allows them to be cleanly unloaded and reloaded.
2013 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2015 *) Introduce limits to prevent malicious keys being able to
2016 cause a denial of service. (CVE-2006-2940)
2017 [Steve Henson, Bodo Moeller]
2019 *) Fix ASN.1 parsing of certain invalid structures that can result
2020 in a denial of service. (CVE-2006-2937) [Steve Henson]
2022 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2023 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2025 *) Fix SSL client code which could crash if connecting to a
2026 malicious SSLv2 server. (CVE-2006-4343)
2027 [Tavis Ormandy and Will Drewry, Google Security Team]
2029 *) Change ciphersuite string processing so that an explicit
2030 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2031 will no longer include "AES128-SHA"), and any other similar
2032 ciphersuite (same bitmap) from *other* protocol versions (so that
2033 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2034 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2035 changes from 0.9.8b and 0.9.8d.
2038 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2040 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2041 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2043 *) Change the Unix randomness entropy gathering to use poll() when
2044 possible instead of select(), since the latter has some
2045 undesirable limitations.
2046 [Darryl Miles via Richard Levitte and Bodo Moeller]
2048 *) Disable rogue ciphersuites:
2050 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2051 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2052 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2054 The latter two were purportedly from
2055 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2058 Also deactive the remaining ciphersuites from
2059 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2060 unofficial, and the ID has long expired.
2063 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2064 dual-core machines) and other potential thread-safety issues.
2067 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2069 *) Adapt fipsld and the build system to link against the validated FIPS
2070 module in FIPS mode.
2073 *) Fixes for VC++ 2005 build under Windows.
2076 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2077 from a Windows bash shell such as MSYS. It is autodetected from the
2078 "config" script when run from a VC++ environment. Modify standard VC++
2079 build to use fipscanister.o from the GNU make build.
2082 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2084 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2085 The value now differs depending on if you build for FIPS or not.
2086 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2087 safely run with a non-FIPSed libcrypto, as it may crash because of
2088 the difference induced by this change.
2091 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2093 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2094 (part of SSL_OP_ALL). This option used to disable the
2095 countermeasure against man-in-the-middle protocol-version
2096 rollback in the SSL 2.0 server implementation, which is a bad
2097 idea. (CVE-2005-2969)
2099 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2100 for Information Security, National Institute of Advanced Industrial
2101 Science and Technology [AIST], Japan)]
2103 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2104 mainly for FIPS compliance and not fully integrated at this stage.
2107 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2108 the exponentiation using a fixed-length exponent. (Otherwise,
2109 the information leaked through timing could expose the secret key
2110 after many signatures; cf. Bleichenbacher's attack on DSA with
2114 *) Make a new fixed-window mod_exp implementation the default for
2115 RSA, DSA, and DH private-key operations so that the sequence of
2116 squares and multiplies and the memory access pattern are
2117 independent of the particular secret key. This will mitigate
2118 cache-timing and potential related attacks.
2120 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2121 and this is automatically used by BN_mod_exp_mont() if the new flag
2122 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2123 will use this BN flag for private exponents unless the flag
2124 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2125 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2127 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2129 *) Change the client implementation for SSLv23_method() and
2130 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2131 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2132 (Previously, the SSL 2.0 backwards compatible Client Hello
2133 message format would be used even with SSL_OP_NO_SSLv2.)
2136 *) Add support for smime-type MIME parameter in S/MIME messages which some
2140 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2141 a threadsafe manner. Modify rsa code to use new function and add calls
2142 to dsa and dh code (which had race conditions before).
2145 *) Include the fixed error library code in the C error file definitions
2146 instead of fixing them up at runtime. This keeps the error code
2147 structures constant.
2150 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2152 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2155 *) Fixes for newer kerberos headers. NB: the casts are needed because
2156 the 'length' field is signed on one version and unsigned on another
2157 with no (?) obvious way to tell the difference, without these VC++
2158 complains. Also the "definition" of FAR (blank) is no longer included
2159 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2160 some needed definitions.
2163 *) Undo Cygwin change.
2166 *) Added support for proxy certificates according to RFC 3820.
2167 Because they may be a security thread to unaware applications,
2168 they must be explicitely allowed in run-time. See
2169 docs/HOWTO/proxy_certificates.txt for further information.
2172 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2174 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2175 server and client random values. Previously
2176 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2177 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2179 This change has negligible security impact because:
2181 1. Server and client random values still have 24 bytes of pseudo random
2184 2. Server and client random values are sent in the clear in the initial
2187 3. The master secret is derived using the premaster secret (48 bytes in
2188 size for static RSA ciphersuites) as well as client server and random
2191 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2194 [Stephen Henson, reported by UK NISCC]
2196 *) Use Windows randomness collection on Cygwin.
2199 *) Fix hang in EGD/PRNGD query when communication socket is closed
2200 prematurely by EGD/PRNGD.
2201 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2203 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2206 *) Back-port of selected performance improvements from development
2207 branch, as well as improved support for PowerPC platforms.
2210 *) Add lots of checks for memory allocation failure, error codes to indicate
2211 failure and freeing up memory if a failure occurs.
2212 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2214 *) Add new -passin argument to dgst.
2217 *) Perform some character comparisons of different types in X509_NAME_cmp:
2218 this is needed for some certificates that reencode DNs into UTF8Strings
2219 (in violation of RFC3280) and can't or wont issue name rollover
2223 *) Make an explicit check during certificate validation to see that
2224 the CA setting in each certificate on the chain is correct. As a
2225 side effect always do the following basic checks on extensions,
2226 not just when there's an associated purpose to the check:
2228 - if there is an unhandled critical extension (unless the user
2229 has chosen to ignore this fault)
2230 - if the path length has been exceeded (if one is set at all)
2231 - that certain extensions fit the associated purpose (if one has
2235 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2237 *) Avoid a race condition when CRLs are checked in a multi threaded
2238 environment. This would happen due to the reordering of the revoked
2239 entries during signature checking and serial number lookup. Now the
2240 encoding is cached and the serial number sort performed under a lock.
2241 Add new STACK function sk_is_sorted().
2244 *) Add Delta CRL to the extension code.
2247 *) Various fixes to s3_pkt.c so alerts are sent properly.
2248 [David Holmes <d.holmes@f5.com>]
2250 *) Reduce the chances of duplicate issuer name and serial numbers (in
2251 violation of RFC3280) using the OpenSSL certificate creation utilities.
2252 This is done by creating a random 64 bit value for the initial serial
2253 number when a serial number file is created or when a self signed
2254 certificate is created using 'openssl req -x509'. The initial serial
2255 number file is created using 'openssl x509 -next_serial' in CA.pl
2256 rather than being initialized to 1.
2259 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2261 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2262 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2263 [Joe Orton, Steve Henson]
2265 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2267 [Joe Orton, Steve Henson]
2269 *) Make it possible to have multiple active certificates with the same
2270 subject in the CA index file. This is done only if the keyword
2271 'unique_subject' is set to 'no' in the main CA section (default
2272 if 'CA_default') of the configuration file. The value is saved
2273 with the database itself in a separate index attribute file,
2274 named like the index file with '.attr' appended to the name.
2277 *) X509 verify fixes. Disable broken certificate workarounds when
2278 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2279 keyUsage extension present. Don't accept CRLs with unhandled critical
2280 extensions: since verify currently doesn't process CRL extensions this
2281 rejects a CRL with *any* critical extensions. Add new verify error codes
2285 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2286 A clarification of RFC2560 will require the use of OCTET STRINGs and
2287 some implementations cannot handle the current raw format. Since OpenSSL
2288 copies and compares OCSP nonces as opaque blobs without any attempt at
2289 parsing them this should not create any compatibility issues.
2292 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2293 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2294 this HMAC (and other) operations are several times slower than OpenSSL
2298 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2299 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2301 *) Use the correct content when signing type "other".
2304 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2306 *) Fix various bugs revealed by running the NISCC test suite:
2308 Stop out of bounds reads in the ASN1 code when presented with
2309 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2311 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2313 If verify callback ignores invalid public key errors don't try to check
2314 certificate signature with the NULL public key.
2318 *) New -ignore_err option in ocsp application to stop the server
2319 exiting on the first error in a request.
2322 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2323 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2327 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2328 extra data after the compression methods not only for TLS 1.0
2329 but also for SSL 3.0 (as required by the specification).
2330 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2332 *) Change X509_certificate_type() to mark the key as exported/exportable
2333 when it's 512 *bits* long, not 512 bytes.
2336 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2337 blocks during encryption.
2340 *) Various fixes to base64 BIO and non blocking I/O. On write
2341 flushes were not handled properly if the BIO retried. On read
2342 data was not being buffered properly and had various logic bugs.
2343 This also affects blocking I/O when the data being decoded is a
2347 *) Various S/MIME bugfixes and compatibility changes:
2348 output correct application/pkcs7 MIME type if
2349 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2350 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2351 of files as .eml work). Correctly handle very long lines in MIME
2355 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2357 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2358 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2359 a protocol version number mismatch like a decryption error
2360 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2363 *) Turn on RSA blinding by default in the default implementation
2364 to avoid a timing attack. Applications that don't want it can call
2365 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2366 They would be ill-advised to do so in most cases.
2367 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2369 *) Change RSA blinding code so that it works when the PRNG is not
2370 seeded (in this case, the secret RSA exponent is abused as
2371 an unpredictable seed -- if it is not unpredictable, there
2372 is no point in blinding anyway). Make RSA blinding thread-safe
2373 by remembering the creator's thread ID in rsa->blinding and
2374 having all other threads use local one-time blinding factors
2375 (this requires more computation than sharing rsa->blinding, but
2376 avoids excessive locking; and if an RSA object is not shared
2377 between threads, blinding will still be very fast).
2380 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2381 ENGINE as defaults for all supported algorithms irrespective of
2382 the 'flags' parameter. 'flags' is now honoured, so applications
2383 should make sure they are passing it correctly.
2386 *) Target "mingw" now allows native Windows code to be generated in
2387 the Cygwin environment as well as with the MinGW compiler.
2390 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2392 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2393 via timing by performing a MAC computation even if incorrrect
2394 block cipher padding has been found. This is a countermeasure
2395 against active attacks where the attacker has to distinguish
2396 between bad padding and a MAC verification error. (CVE-2003-0078)
2398 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2399 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2400 Martin Vuagnoux (EPFL, Ilion)]
2402 *) Make the no-err option work as intended. The intention with no-err
2403 is not to have the whole error stack handling routines removed from
2404 libcrypto, it's only intended to remove all the function name and
2405 reason texts, thereby removing some of the footprint that may not
2406 be interesting if those errors aren't displayed anyway.
2408 NOTE: it's still possible for any application or module to have it's
2409 own set of error texts inserted. The routines are there, just not
2410 used by default when no-err is given.
2413 *) Add support for FreeBSD on IA64.
2414 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2416 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2417 Kerberos function mit_des_cbc_cksum(). Before this change,
2418 the value returned by DES_cbc_cksum() was like the one from
2419 mit_des_cbc_cksum(), except the bytes were swapped.
2420 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2422 *) Allow an application to disable the automatic SSL chain building.
2423 Before this a rather primitive chain build was always performed in
2424 ssl3_output_cert_chain(): an application had no way to send the
2425 correct chain if the automatic operation produced an incorrect result.
2427 Now the chain builder is disabled if either:
2429 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2431 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2433 The reasoning behind this is that an application would not want the
2434 auto chain building to take place if extra chain certificates are
2435 present and it might also want a means of sending no additional
2436 certificates (for example the chain has two certificates and the
2440 *) Add the possibility to build without the ENGINE framework.
2441 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2443 *) Under Win32 gmtime() can return NULL: check return value in
2444 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2447 *) DSA routines: under certain error conditions uninitialized BN objects
2448 could be freed. Solution: make sure initialization is performed early
2449 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2450 Nils Larsch <nla@trustcenter.de> via PR#459)
2453 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2454 checked on reconnect on the client side, therefore session resumption
2455 could still fail with a "ssl session id is different" error. This
2456 behaviour is masked when SSL_OP_ALL is used due to
2457 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2458 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2459 followup to PR #377.
2462 *) IA-32 assembler support enhancements: unified ELF targets, support
2463 for SCO/Caldera platforms, fix for Cygwin shared build.
2466 *) Add support for FreeBSD on sparc64. As a consequence, support for
2467 FreeBSD on non-x86 processors is separate from x86 processors on
2468 the config script, much like the NetBSD support.
2469 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2471 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2473 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2476 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2477 code (06) was taken as the first octet of the session ID and the last
2478 octet was ignored consequently. As a result SSLv2 client side session
2479 caching could not have worked due to the session ID mismatch between
2481 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2485 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2486 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2490 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2491 seems that in spite of existing for more than a year, many application
2492 author have done nothing to provide the necessary callbacks, which
2493 means that this particular engine will not work properly anywhere.
2494 This is a very unfortunate situation which forces us, in the name
2495 of usability, to give the hw_ncipher.c a static lock, which is part
2497 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2498 appear in 0.9.8 or later. We EXPECT application authors to have
2499 dealt properly with this when 0.9.8 is released (unless we actually
2500 make such changes in the libcrypto locking code that changes will
2501 have to be made anyway).
2504 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2505 octets have been read, EOF or an error occurs. Without this change
2506 some truncated ASN1 structures will not produce an error.
2509 *) Disable Heimdal support, since it hasn't been fully implemented.
2510 Still give the possibility to force the use of Heimdal, but with
2511 warnings and a request that patches get sent to openssl-dev.
2514 *) Add the VC-CE target, introduce the WINCE sysname, and add
2515 INSTALL.WCE and appropriate conditionals to make it build.
2516 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2518 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2519 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2520 edit numbers of the version.
2521 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2523 *) Introduce safe string copy and catenation functions
2524 (BUF_strlcpy() and BUF_strlcat()).
2525 [Ben Laurie (CHATS) and Richard Levitte]
2527 *) Avoid using fixed-size buffers for one-line DNs.
2528 [Ben Laurie (CHATS)]
2530 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2531 resizing buffers containing secrets, and use where appropriate.
2532 [Ben Laurie (CHATS)]
2534 *) Avoid using fixed size buffers for configuration file location.
2535 [Ben Laurie (CHATS)]
2537 *) Avoid filename truncation for various CA files.
2538 [Ben Laurie (CHATS)]
2540 *) Use sizeof in preference to magic numbers.
2541 [Ben Laurie (CHATS)]
2543 *) Avoid filename truncation in cert requests.
2544 [Ben Laurie (CHATS)]
2546 *) Add assertions to check for (supposedly impossible) buffer
2548 [Ben Laurie (CHATS)]
2550 *) Don't cache truncated DNS entries in the local cache (this could
2551 potentially lead to a spoofing attack).
2552 [Ben Laurie (CHATS)]
2554 *) Fix various buffers to be large enough for hex/decimal
2555 representations in a platform independent manner.
2556 [Ben Laurie (CHATS)]
2558 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2559 resizing buffers containing secrets, and use where appropriate.
2560 [Ben Laurie (CHATS)]
2562 *) Add BIO_indent() to avoid much slightly worrying code to do
2564 [Ben Laurie (CHATS)]
2566 *) Convert sprintf()/BIO_puts() to BIO_printf().
2567 [Ben Laurie (CHATS)]
2569 *) buffer_gets() could terminate with the buffer only half
2571 [Ben Laurie (CHATS)]
2573 *) Add assertions to prevent user-supplied crypto functions from
2574 overflowing internal buffers by having large block sizes, etc.
2575 [Ben Laurie (CHATS)]
2577 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2579 [Ben Laurie (CHATS)]
2581 *) Eliminate unused copy of key in RC4.
2582 [Ben Laurie (CHATS)]
2584 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2585 [Ben Laurie (CHATS)]
2587 *) Fix off-by-one error in EGD path.
2588 [Ben Laurie (CHATS)]
2590 *) If RANDFILE path is too long, ignore instead of truncating.
2591 [Ben Laurie (CHATS)]
2593 *) Eliminate unused and incorrectly sized X.509 structure
2595 [Ben Laurie (CHATS)]
2597 *) Eliminate unused and dangerous function knumber().
2598 [Ben Laurie (CHATS)]
2600 *) Eliminate unused and dangerous structure, KSSL_ERR.
2601 [Ben Laurie (CHATS)]
2603 *) Protect against overlong session ID context length in an encoded
2604 session object. Since these are local, this does not appear to be
2606 [Ben Laurie (CHATS)]
2608 *) Change from security patch (see 0.9.6e below) that did not affect
2609 the 0.9.6 release series:
2611 Remote buffer overflow in SSL3 protocol - an attacker could
2612 supply an oversized master key in Kerberos-enabled versions.
2614 [Ben Laurie (CHATS)]
2616 *) Change the SSL kerb5 codes to match RFC 2712.
2619 *) Make -nameopt work fully for req and add -reqopt switch.
2620 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2622 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2623 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2625 *) Make sure tests can be performed even if the corresponding algorithms
2626 have been removed entirely. This was also the last step to make
2627 OpenSSL compilable with DJGPP under all reasonable conditions.
2628 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2630 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2631 to allow version independent disabling of normally unselected ciphers,
2632 which may be activated as a side-effect of selecting a single cipher.
2634 (E.g., cipher list string "RSA" enables ciphersuites that are left
2635 out of "ALL" because they do not provide symmetric encryption.
2636 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2637 [Lutz Jaenicke, Bodo Moeller]
2639 *) Add appropriate support for separate platform-dependent build
2640 directories. The recommended way to make a platform-dependent
2641 build directory is the following (tested on Linux), maybe with
2644 # Place yourself outside of the OpenSSL source tree. In
2645 # this example, the environment variable OPENSSL_SOURCE
2646 # is assumed to contain the absolute OpenSSL source directory.
2647 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2648 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2649 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2650 mkdir -p `dirname $F`
2651 ln -s $OPENSSL_SOURCE/$F $F
2654 To be absolutely sure not to disturb the source tree, a "make clean"
2655 is a good thing. If it isn't successfull, don't worry about it,
2656 it probably means the source directory is very clean.
2659 *) Make sure any ENGINE control commands make local copies of string
2660 pointers passed to them whenever necessary. Otherwise it is possible
2661 the caller may have overwritten (or deallocated) the original string
2662 data when a later ENGINE operation tries to use the stored values.
2663 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2665 *) Improve diagnostics in file reading and command-line digests.
2666 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2668 *) Add AES modes CFB and OFB to the object database. Correct an
2669 error in AES-CFB decryption.
2672 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2673 allows existing EVP_CIPHER_CTX structures to be reused after
2674 calling EVP_*Final(). This behaviour is used by encryption
2675 BIOs and some applications. This has the side effect that
2676 applications must explicitly clean up cipher contexts with
2677 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2680 *) Check the values of dna and dnb in bn_mul_recursive before calling
2681 bn_mul_comba (a non zero value means the a or b arrays do not contain
2682 n2 elements) and fallback to bn_mul_normal if either is not zero.
2685 *) Fix escaping of non-ASCII characters when using the -subj option
2686 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2689 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2690 form for "surname", serialNumber has no short form.
2691 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2692 therefore remove "mail" short name for "internet 7".
2693 The OID for unique identifiers in X509 certificates is
2694 x500UniqueIdentifier, not uniqueIdentifier.
2695 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2698 *) Add an "init" command to the ENGINE config module and auto initialize
2699 ENGINEs. Without any "init" command the ENGINE will be initialized
2700 after all ctrl commands have been executed on it. If init=1 the
2701 ENGINE is initailized at that point (ctrls before that point are run
2702 on the uninitialized ENGINE and after on the initialized one). If
2703 init=0 then the ENGINE will not be iniatialized at all.
2706 *) Fix the 'app_verify_callback' interface so that the user-defined
2707 argument is actually passed to the callback: In the
2708 SSL_CTX_set_cert_verify_callback() prototype, the callback
2709 declaration has been changed from
2712 int (*cb)(X509_STORE_CTX *,void *);
2713 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2714 i=s->ctx->app_verify_callback(&ctx)
2715 has been changed into
2716 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2718 To update applications using SSL_CTX_set_cert_verify_callback(),
2719 a dummy argument can be added to their callback functions.
2720 [D. K. Smetters <smetters@parc.xerox.com>]
2722 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2723 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2725 *) Add and OPENSSL_LOAD_CONF define which will cause
2726 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2727 This allows older applications to transparently support certain
2728 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2729 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2730 load the config file and OPENSSL_add_all_algorithms_conf() which will
2731 always load it have also been added.
2734 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2735 Adjust NIDs and EVP layer.
2736 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2738 *) Config modules support in openssl utility.
2740 Most commands now load modules from the config file,
2741 though in a few (such as version) this isn't done
2742 because it couldn't be used for anything.
2744 In the case of ca and req the config file used is
2745 the same as the utility itself: that is the -config
2746 command line option can be used to specify an
2750 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2751 use "openssl_conf" if filename is NULL use default openssl config file.
2754 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2755 config section name. Add a new flag to tolerate a missing config file
2756 and move code to CONF_modules_load_file().
2759 *) Support for crypto accelerator cards from Accelerated Encryption
2760 Processing, www.aep.ie. (Use engine 'aep')
2761 The support was copied from 0.9.6c [engine] and adapted/corrected
2762 to work with the new engine framework.
2763 [AEP Inc. and Richard Levitte]
2765 *) Support for SureWare crypto accelerator cards from Baltimore
2766 Technologies. (Use engine 'sureware')
2767 The support was copied from 0.9.6c [engine] and adapted
2768 to work with the new engine framework.
2771 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2772 make the newer ENGINE framework commands for the CHIL engine work.
2773 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2775 *) Make it possible to produce shared libraries on ReliantUNIX.
2776 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2778 *) Add the configuration target debug-linux-ppro.
2779 Make 'openssl rsa' use the general key loading routines
2780 implemented in apps.c, and make those routines able to
2781 handle the key format FORMAT_NETSCAPE and the variant
2783 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2785 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2786 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2788 *) Add -keyform to rsautl, and document -engine.
2789 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2791 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2792 BIO_R_NO_SUCH_FILE error code rather than the generic
2793 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2796 *) Add new functions
2798 ERR_peek_last_error_line
2799 ERR_peek_last_error_line_data.
2800 These are similar to
2803 ERR_peek_error_line_data,
2804 but report on the latest error recorded rather than the first one
2805 still in the error queue.
2806 [Ben Laurie, Bodo Moeller]
2808 *) default_algorithms option in ENGINE config module. This allows things
2810 default_algorithms = ALL
2811 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2814 *) Prelminary ENGINE config module.
2817 *) New experimental application configuration code.
2820 *) Change the AES code to follow the same name structure as all other
2821 symmetric ciphers, and behave the same way. Move everything to
2822 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2823 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2825 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2826 [Ben Laurie and Theo de Raadt]
2828 *) Add option to output public keys in req command.
2829 [Massimiliano Pala madwolf@openca.org]
2831 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2832 (up to about 10% better than before for P-192 and P-224).
2835 *) New functions/macros
2837 SSL_CTX_set_msg_callback(ctx, cb)
2838 SSL_CTX_set_msg_callback_arg(ctx, arg)
2839 SSL_set_msg_callback(ssl, cb)
2840 SSL_set_msg_callback_arg(ssl, arg)
2842 to request calling a callback function
2844 void cb(int write_p, int version, int content_type,
2845 const void *buf, size_t len, SSL *ssl, void *arg)
2847 whenever a protocol message has been completely received
2848 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2849 protocol version according to which the SSL library interprets
2850 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2851 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2852 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2853 specification (change_cipher_spec(20), alert(21), handshake(22)).
2854 'buf' and 'len' point to the actual message, 'ssl' to the
2855 SSL object, and 'arg' is the application-defined value set by
2856 SSL[_CTX]_set_msg_callback_arg().
2858 'openssl s_client' and 'openssl s_server' have new '-msg' options
2859 to enable a callback that displays all protocol messages.
2862 *) Change the shared library support so shared libraries are built as
2863 soon as the corresponding static library is finished, and thereby get
2864 openssl and the test programs linked against the shared library.
2865 This still only happens when the keyword "shard" has been given to
2866 the configuration scripts.
2868 NOTE: shared library support is still an experimental thing, and
2869 backward binary compatibility is still not guaranteed.
2870 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2872 *) Add support for Subject Information Access extension.
2873 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2875 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2876 additional bytes when new memory had to be allocated, not just
2877 when reusing an existing buffer.
2880 *) New command line and configuration option 'utf8' for the req command.
2881 This allows field values to be specified as UTF8 strings.
2884 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2885 runs for the former and machine-readable output for the latter.
2888 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2889 of the e-mail address in the DN (i.e., it will go into a certificate
2890 extension only). The new configuration file option 'email_in_dn = no'
2891 has the same effect.
2892 [Massimiliano Pala madwolf@openca.org]
2894 *) Change all functions with names starting with des_ to be starting
2895 with DES_ instead. Add wrappers that are compatible with libdes,
2896 but are named _ossl_old_des_*. Finally, add macros that map the
2897 des_* symbols to the corresponding _ossl_old_des_* if libdes
2898 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2899 desired, the des_* symbols will be mapped to DES_*, with one
2902 Since we provide two compatibility mappings, the user needs to
2903 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2904 compatibility is desired. The default (i.e., when that macro
2905 isn't defined) is OpenSSL 0.9.6c compatibility.
2907 There are also macros that enable and disable the support of old
2908 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2909 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2910 are defined, the default will apply: to support the old des routines.
2912 In either case, one must include openssl/des.h to get the correct
2913 definitions. Do not try to just include openssl/des_old.h, that
2916 NOTE: This is a major break of an old API into a new one. Software
2917 authors are encouraged to switch to the DES_ style functions. Some
2918 time in the future, des_old.h and the libdes compatibility functions
2919 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2920 default), and then completely removed.
2923 *) Test for certificates which contain unsupported critical extensions.
2924 If such a certificate is found during a verify operation it is
2925 rejected by default: this behaviour can be overridden by either
2926 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2927 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2928 X509_supported_extension() has also been added which returns 1 if a
2929 particular extension is supported.
2932 *) Modify the behaviour of EVP cipher functions in similar way to digests
2933 to retain compatibility with existing code.
2936 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2937 compatibility with existing code. In particular the 'ctx' parameter does
2938 not have to be to be initialized before the call to EVP_DigestInit() and
2939 it is tidied up after a call to EVP_DigestFinal(). New function
2940 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2941 EVP_MD_CTX_copy() changed to not require the destination to be
2942 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2943 requires the destination to be valid.
2945 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2946 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2949 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2950 so that complete 'Handshake' protocol structures are kept in memory
2951 instead of overwriting 'msg_type' and 'length' with 'body' data.
2954 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2955 [Massimo Santin via Richard Levitte]
2957 *) Major restructuring to the underlying ENGINE code. This includes
2958 reduction of linker bloat, separation of pure "ENGINE" manipulation
2959 (initialisation, etc) from functionality dealing with implementations
2960 of specific crypto iterfaces. This change also introduces integrated
2961 support for symmetric ciphers and digest implementations - so ENGINEs
2962 can now accelerate these by providing EVP_CIPHER and EVP_MD
2963 implementations of their own. This is detailed in crypto/engine/README
2964 as it couldn't be adequately described here. However, there are a few
2965 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2966 were changed in the original introduction of ENGINE code have now
2967 reverted back - the hooking from this code to ENGINE is now a good
2968 deal more passive and at run-time, operations deal directly with
2969 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2970 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2971 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2972 they were not being used by the framework as there is no concept of a
2973 BIGNUM_METHOD and they could not be generalised to the new
2974 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2975 ENGINE_cpy() has been removed as it cannot be consistently defined in
2979 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2982 *) Change mkdef.pl to sort symbols that get the same entry number,
2983 and make sure the automatically generated functions ERR_load_*
2984 become part of libeay.num as well.
2987 *) New function SSL_renegotiate_pending(). This returns true once
2988 renegotiation has been requested (either SSL_renegotiate() call
2989 or HelloRequest/ClientHello receveived from the peer) and becomes
2990 false once a handshake has been completed.
2991 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2992 sends a HelloRequest, but does not ensure that a handshake takes
2993 place. SSL_renegotiate_pending() is useful for checking if the
2994 client has followed the request.)
2997 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2998 By default, clients may request session resumption even during
2999 renegotiation (if session ID contexts permit); with this option,
3000 session resumption is possible only in the first handshake.
3002 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3003 more bits available for options that should not be part of
3004 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3007 *) Add some demos for certificate and certificate request creation.
3010 *) Make maximum certificate chain size accepted from the peer application
3011 settable (SSL*_get/set_max_cert_list()), as proposed by
3012 "Douglas E. Engert" <deengert@anl.gov>.
3015 *) Add support for shared libraries for Unixware-7
3016 (Boyd Lynn Gerber <gerberb@zenez.com>).
3019 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3020 be done prior to destruction. Use this to unload error strings from
3021 ENGINEs that load their own error strings. NB: This adds two new API
3022 functions to "get" and "set" this destroy handler in an ENGINE.
3025 *) Alter all existing ENGINE implementations (except "openssl" and
3026 "openbsd") to dynamically instantiate their own error strings. This
3027 makes them more flexible to be built both as statically-linked ENGINEs
3028 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3029 Also, add stub code to each that makes building them as self-contained
3030 shared-libraries easier (see README.ENGINE).
3033 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3034 implementations into applications that are completely implemented in
3035 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3036 commands that can be used to configure what shared-library to load and
3037 to control aspects of the way it is handled. Also, made an update to
3038 the README.ENGINE file that brings its information up-to-date and
3039 provides some information and instructions on the "dynamic" ENGINE
3040 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3043 *) Make it possible to unload ranges of ERR strings with a new
3044 "ERR_unload_strings" function.
3047 *) Add a copy() function to EVP_MD.
3050 *) Make EVP_MD routines take a context pointer instead of just the
3051 md_data void pointer.
3054 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3055 that the digest can only process a single chunk of data
3056 (typically because it is provided by a piece of
3057 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3058 is only going to provide a single chunk of data, and hence the
3059 framework needn't accumulate the data for oneshot drivers.
3062 *) As with "ERR", make it possible to replace the underlying "ex_data"
3063 functions. This change also alters the storage and management of global
3064 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3065 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3066 index counters. The API functions that use this state have been changed
3067 to take a "class_index" rather than pointers to the class's local STACK
3068 and counter, and there is now an API function to dynamically create new
3069 classes. This centralisation allows us to (a) plug a lot of the
3070 thread-safety problems that existed, and (b) makes it possible to clean
3071 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3072 such data would previously have always leaked in application code and
3073 workarounds were in place to make the memory debugging turn a blind eye
3074 to it. Application code that doesn't use this new function will still
3075 leak as before, but their memory debugging output will announce it now
3076 rather than letting it slide.
3078 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3079 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3080 has a return value to indicate success or failure.
3083 *) Make it possible to replace the underlying "ERR" functions such that the
3084 global state (2 LHASH tables and 2 locks) is only used by the "default"
3085 implementation. This change also adds two functions to "get" and "set"
3086 the implementation prior to it being automatically set the first time
3087 any other ERR function takes place. Ie. an application can call "get",
3088 pass the return value to a module it has just loaded, and that module
3089 can call its own "set" function using that value. This means the
3090 module's "ERR" operations will use (and modify) the error state in the
3091 application and not in its own statically linked copy of OpenSSL code.
3094 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3095 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3096 the operation, and provides a more encapsulated way for external code
3097 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3098 to use these functions rather than manually incrementing the counts.
3100 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3103 *) Add EVP test program.
3106 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3109 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3110 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3111 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3112 These allow a CRL to be built without having to access X509_CRL fields
3113 directly. Modify 'ca' application to use new functions.
3116 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3117 bug workarounds. Rollback attack detection is a security feature.
3118 The problem will only arise on OpenSSL servers when TLSv1 is not
3119 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3120 Software authors not wanting to support TLSv1 will have special reasons
3121 for their choice and can explicitly enable this option.
3122 [Bodo Moeller, Lutz Jaenicke]
3124 *) Rationalise EVP so it can be extended: don't include a union of
3125 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3126 (similar to those existing for EVP_CIPHER_CTX).
3131 EVP_MD_CTX_init(&md); /* new function call */
3132 EVP_DigestInit(&md, EVP_sha1());
3133 EVP_DigestUpdate(&md, in, len);
3134 EVP_DigestFinal(&md, out, NULL);
3135 EVP_MD_CTX_cleanup(&md); /* new function call */
3139 *) Make DES key schedule conform to the usual scheme, as well as
3140 correcting its structure. This means that calls to DES functions
3141 now have to pass a pointer to a des_key_schedule instead of a
3142 plain des_key_schedule (which was actually always a pointer
3145 des_key_schedule ks;
3147 des_set_key_checked(..., &ks);
3148 des_ncbc_encrypt(..., &ks, ...);
3150 (Note that a later change renames 'des_...' into 'DES_...'.)
3153 *) Initial reduction of linker bloat: the use of some functions, such as
3154 PEM causes large amounts of unused functions to be linked in due to
3155 poor organisation. For example pem_all.c contains every PEM function
3156 which has a knock on effect of linking in large amounts of (unused)
3157 ASN1 code. Grouping together similar functions and splitting unrelated
3158 functions prevents this.
3161 *) Cleanup of EVP macros.
3164 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3165 correct _ecb suffix.
3168 *) Add initial OCSP responder support to ocsp application. The
3169 revocation information is handled using the text based index
3170 use by the ca application. The responder can either handle
3171 requests generated internally, supplied in files (for example
3172 via a CGI script) or using an internal minimal server.
3175 *) Add configuration choices to get zlib compression for TLS.
3178 *) Changes to Kerberos SSL for RFC 2712 compliance:
3179 1. Implemented real KerberosWrapper, instead of just using
3180 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3181 2. Implemented optional authenticator field of KerberosWrapper.
3183 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3184 and authenticator structs; see crypto/krb5/.
3186 Generalized Kerberos calls to support multiple Kerberos libraries.
3187 [Vern Staats <staatsvr@asc.hpc.mil>,
3188 Jeffrey Altman <jaltman@columbia.edu>
3189 via Richard Levitte]
3191 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3192 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3193 values for each of the key sizes rather than having just
3194 parameters (and 'speed' generating keys each time).
3197 *) Speed up EVP routines.
3200 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3201 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3202 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3203 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3205 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3206 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3207 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3210 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3212 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3215 *) Added the OS2-EMX target.
3216 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3218 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3219 to support NCONF routines in extension code. New function CONF_set_nconf()
3220 to allow functions which take an NCONF to also handle the old LHASH
3221 structure: this means that the old CONF compatible routines can be
3222 retained (in particular wrt extensions) without having to duplicate the
3223 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3226 *) Enhance the general user interface with mechanisms for inner control
3227 and with possibilities to have yes/no kind of prompts.
3230 *) Change all calls to low level digest routines in the library and
3231 applications to use EVP. Add missing calls to HMAC_cleanup() and
3232 don't assume HMAC_CTX can be copied using memcpy().
3233 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3235 *) Add the possibility to control engines through control names but with
3236 arbitrary arguments instead of just a string.
3237 Change the key loaders to take a UI_METHOD instead of a callback
3238 function pointer. NOTE: this breaks binary compatibility with earlier
3239 versions of OpenSSL [engine].
3240 Adapt the nCipher code for these new conditions and add a card insertion
3244 *) Enhance the general user interface with mechanisms to better support
3245 dialog box interfaces, application-defined prompts, the possibility
3246 to use defaults (for example default passwords from somewhere else)
3247 and interrupts/cancellations.
3250 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3251 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3254 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3255 tidy up some unnecessarily weird code in 'sk_new()').
3256 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3258 *) Change the key loading routines for ENGINEs to use the same kind
3259 callback (pem_password_cb) as all other routines that need this
3263 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3264 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3265 than this minimum value is recommended.
3268 *) New random seeder for OpenVMS, using the system process statistics
3269 that are easily reachable.
3272 *) Windows apparently can't transparently handle global
3273 variables defined in DLLs. Initialisations such as:
3275 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3277 wont compile. This is used by the any applications that need to
3278 declare their own ASN1 modules. This was fixed by adding the option
3279 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3280 needed for static libraries under Win32.
3283 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3284 setting of purpose and trust fields. New X509_STORE trust and
3285 purpose functions and tidy up setting in other SSL functions.
3288 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3289 structure. These are inherited by X509_STORE_CTX when it is
3290 initialised. This allows various defaults to be set in the
3291 X509_STORE structure (such as flags for CRL checking and custom
3292 purpose or trust settings) for functions which only use X509_STORE_CTX
3293 internally such as S/MIME.
3295 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3296 trust settings if they are not set in X509_STORE. This allows X509_STORE
3297 purposes and trust (in S/MIME for example) to override any set by default.
3299 Add command line options for CRL checking to smime, s_client and s_server
3303 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3304 are set then the CRL is looked up in the X509_STORE structure and
3305 its validity and signature checked, then if the certificate is found
3306 in the CRL the verify fails with a revoked error.
3308 Various new CRL related callbacks added to X509_STORE_CTX structure.
3310 Command line options added to 'verify' application to support this.
3312 This needs some additional work, such as being able to handle multiple
3313 CRLs with different times, extension based lookup (rather than just
3314 by subject name) and ultimately more complete V2 CRL extension
3318 *) Add a general user interface API (crypto/ui/). This is designed
3319 to replace things like des_read_password and friends (backward
3320 compatibility functions using this new API are provided).
3321 The purpose is to remove prompting functions from the DES code
3322 section as well as provide for prompting through dialog boxes in
3323 a window system and the like.
3326 *) Add "ex_data" support to ENGINE so implementations can add state at a
3327 per-structure level rather than having to store it globally.
3330 *) Make it possible for ENGINE structures to be copied when retrieved by
3331 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3332 This causes the "original" ENGINE structure to act like a template,
3333 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3334 operational state can be localised to each ENGINE structure, despite the
3335 fact they all share the same "methods". New ENGINE structures returned in
3336 this case have no functional references and the return value is the single
3337 structural reference. This matches the single structural reference returned
3338 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3342 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3343 needs to match any other type at all we need to manually clear the
3347 *) Changes to the "openssl engine" utility to include;
3348 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3349 about an ENGINE's available control commands.
3350 - executing control commands from command line arguments using the
3351 '-pre' and '-post' switches. '-post' is only used if '-t' is
3352 specified and the ENGINE is successfully initialised. The syntax for
3353 the individual commands are colon-separated, for example;
3354 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3357 *) New dynamic control command support for ENGINEs. ENGINEs can now
3358 declare their own commands (numbers), names (strings), descriptions,
3359 and input types for run-time discovery by calling applications. A
3360 subset of these commands are implicitly classed as "executable"
3361 depending on their input type, and only these can be invoked through
3362 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3363 can be based on user input, config files, etc). The distinction is
3364 that "executable" commands cannot return anything other than a boolean
3365 result and can only support numeric or string input, whereas some
3366 discoverable commands may only be for direct use through
3367 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3368 pointers, or other custom uses. The "executable" commands are to
3369 support parameterisations of ENGINE behaviour that can be
3370 unambiguously defined by ENGINEs and used consistently across any
3371 OpenSSL-based application. Commands have been added to all the
3372 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3373 control over shared-library paths without source code alterations.
3376 *) Changed all ENGINE implementations to dynamically allocate their
3377 ENGINEs rather than declaring them statically. Apart from this being
3378 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3379 this also allows the implementations to compile without using the
3380 internal engine_int.h header.
3383 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3384 'const' value. Any code that should be able to modify a RAND_METHOD
3385 should already have non-const pointers to it (ie. they should only
3386 modify their own ones).
3389 *) Made a variety of little tweaks to the ENGINE code.
3390 - "atalla" and "ubsec" string definitions were moved from header files
3391 to C code. "nuron" string definitions were placed in variables
3392 rather than hard-coded - allowing parameterisation of these values
3393 later on via ctrl() commands.
3394 - Removed unused "#if 0"'d code.
3395 - Fixed engine list iteration code so it uses ENGINE_free() to release
3396 structural references.
3397 - Constified the RAND_METHOD element of ENGINE structures.
3398 - Constified various get/set functions as appropriate and added
3399 missing functions (including a catch-all ENGINE_cpy that duplicates
3400 all ENGINE values onto a new ENGINE except reference counts/state).
3401 - Removed NULL parameter checks in get/set functions. Setting a method
3402 or function to NULL is a way of cancelling out a previously set
3403 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3404 and doesn't justify the extra error symbols and code.
3405 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3406 flags from engine_int.h to engine.h.
3407 - Changed prototypes for ENGINE handler functions (init(), finish(),
3408 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3411 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3412 to the algorithm using long division. The binary algorithm can be
3413 used only if the modulus is odd. On 32-bit systems, it is faster
3414 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3415 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3416 up to 450 bits. In 64-bit environments, the binary algorithm
3417 appears to be advantageous for much longer moduli; here we use it
3418 for moduli up to 2048 bits.
3421 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3422 could not support the combine flag in choice fields.
3425 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3426 extensions from a certificate request to the certificate.
3429 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3430 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3431 file: this allows the display of the certificate about to be
3432 signed to be customised, to allow certain fields to be included
3433 or excluded and extension details. The old system didn't display
3434 multicharacter strings properly, omitted fields not in the policy
3435 and couldn't display additional details such as extensions.
3438 *) Function EC_POINTs_mul for multiple scalar multiplication
3439 of an arbitrary number of elliptic curve points
3440 \sum scalars[i]*points[i],
3441 optionally including the generator defined for the EC_GROUP:
3442 scalar*generator + \sum scalars[i]*points[i].
3444 EC_POINT_mul is a simple wrapper function for the typical case
3445 that the point list has just one item (besides the optional
3449 *) First EC_METHODs for curves over GF(p):
3451 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3452 operations and provides various method functions that can also
3453 operate with faster implementations of modular arithmetic.
3455 EC_GFp_mont_method() reuses most functions that are part of
3456 EC_GFp_simple_method, but uses Montgomery arithmetic.
3458 [Bodo Moeller; point addition and point doubling
3459 implementation directly derived from source code provided by
3460 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3462 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3463 crypto/ec/ec_lib.c):
3465 Curves are EC_GROUP objects (with an optional group generator)
3466 based on EC_METHODs that are built into the library.
3468 Points are EC_POINT objects based on EC_GROUP objects.
3470 Most of the framework would be able to handle curves over arbitrary
3471 finite fields, but as there are no obvious types for fields other
3472 than GF(p), some functions are limited to that for now.
3475 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3476 that the file contains a complete HTTP response.
3479 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3480 change the def and num file printf format specifier from "%-40sXXX"
3481 to "%-39s XXX". The latter will always guarantee a space after the
3482 field while the former will cause them to run together if the field
3483 is 40 of more characters long.
3486 *) Constify the cipher and digest 'method' functions and structures
3487 and modify related functions to take constant EVP_MD and EVP_CIPHER
3491 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3492 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3495 *) Modify EVP_Digest*() routines so they now return values. Although the
3496 internal software routines can never fail additional hardware versions
3500 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3502 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3503 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3506 ERR_R_NESTED_ASN1_ERROR
3508 ERR_R_MISSING_ASN1_EOS
3509 were 4 .. 9, conflicting with
3510 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3512 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3513 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3515 Add new error code 'ERR_R_INTERNAL_ERROR'.
3518 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3522 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3523 sets the subject name for a new request or supersedes the
3524 subject name in a given request. Formats that can be parsed are
3525 'CN=Some Name, OU=myOU, C=IT'
3527 'CN=Some Name/OU=myOU/C=IT'.
3529 Add options '-batch' and '-verbose' to 'openssl req'.
3530 [Massimiliano Pala <madwolf@hackmasters.net>]
3532 *) Introduce the possibility to access global variables through
3533 functions on platform were that's the best way to handle exporting
3534 global variables in shared libraries. To enable this functionality,
3535 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3536 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3537 is normally done by Configure or something similar).
3539 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3540 in the source file (foo.c) like this:
3542 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3543 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3545 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3546 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3548 OPENSSL_DECLARE_GLOBAL(int,foo);
3549 #define foo OPENSSL_GLOBAL_REF(foo)
3550 OPENSSL_DECLARE_GLOBAL(double,bar);
3551 #define bar OPENSSL_GLOBAL_REF(bar)
3553 The #defines are very important, and therefore so is including the
3554 header file everywhere where the defined globals are used.
3556 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3557 of ASN.1 items, but that structure is a bit different.
3559 The largest change is in util/mkdef.pl which has been enhanced with
3560 better and easier to understand logic to choose which symbols should
3561 go into the Windows .def files as well as a number of fixes and code
3562 cleanup (among others, algorithm keywords are now sorted
3563 lexicographically to avoid constant rewrites).
3566 *) In BN_div() keep a copy of the sign of 'num' before writing the
3567 result to 'rm' because if rm==num the value will be overwritten
3568 and produce the wrong result if 'num' is negative: this caused
3569 problems with BN_mod() and BN_nnmod().
3572 *) Function OCSP_request_verify(). This checks the signature on an
3573 OCSP request and verifies the signer certificate. The signer
3574 certificate is just checked for a generic purpose and OCSP request
3578 *) Add OCSP_check_validity() function to check the validity of OCSP
3579 responses. OCSP responses are prepared in real time and may only
3580 be a few seconds old. Simply checking that the current time lies
3581 between thisUpdate and nextUpdate max reject otherwise valid responses
3582 caused by either OCSP responder or client clock inaccuracy. Instead
3583 we allow thisUpdate and nextUpdate to fall within a certain period of
3584 the current time. The age of the response can also optionally be
3585 checked. Two new options -validity_period and -status_age added to
3589 *) If signature or public key algorithm is unrecognized print out its
3590 OID rather that just UNKNOWN.
3593 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3594 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3595 ID to be generated from the issuer certificate alone which can then be
3596 passed to OCSP_id_issuer_cmp().
3599 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3600 ASN1 modules to export functions returning ASN1_ITEM pointers
3601 instead of the ASN1_ITEM structures themselves. This adds several
3602 new macros which allow the underlying ASN1 function/structure to
3603 be accessed transparently. As a result code should not use ASN1_ITEM
3604 references directly (such as &X509_it) but instead use the relevant
3605 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3606 use of the new ASN1 code on platforms where exporting structures
3607 is problematical (for example in shared libraries) but exporting
3608 functions returning pointers to structures is not.
3611 *) Add support for overriding the generation of SSL/TLS session IDs.
3612 These callbacks can be registered either in an SSL_CTX or per SSL.
3613 The purpose of this is to allow applications to control, if they wish,
3614 the arbitrary values chosen for use as session IDs, particularly as it
3615 can be useful for session caching in multiple-server environments. A
3616 command-line switch for testing this (and any client code that wishes
3617 to use such a feature) has been added to "s_server".
3618 [Geoff Thorpe, Lutz Jaenicke]
3620 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3621 of the form '#if defined(...) || defined(...) || ...' and
3622 '#if !defined(...) && !defined(...) && ...'. This also avoids
3623 the growing number of special cases it was previously handling.
3626 *) Make all configuration macros available for application by making
3627 sure they are available in opensslconf.h, by giving them names starting
3628 with "OPENSSL_" to avoid conflicts with other packages and by making
3629 sure e_os2.h will cover all platform-specific cases together with
3631 Additionally, it is now possible to define configuration/platform-
3632 specific names (called "system identities"). In the C code, these
3633 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3634 macro with the name beginning with "OPENSSL_SYS_", which is determined
3635 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3639 *) New option -set_serial to 'req' and 'x509' this allows the serial
3640 number to use to be specified on the command line. Previously self
3641 signed certificates were hard coded with serial number 0 and the
3642 CA options of 'x509' had to use a serial number in a file which was
3646 *) New options to 'ca' utility to support V2 CRL entry extensions.
3647 Currently CRL reason, invalidity date and hold instruction are
3648 supported. Add new CRL extensions to V3 code and some new objects.
3651 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3652 disable standard block padding (aka PKCS#5 padding) in the EVP
3653 API, which was previously mandatory. This means that the data is
3654 not padded in any way and so the total length much be a multiple
3655 of the block size, otherwise an error occurs.
3658 *) Initial (incomplete) OCSP SSL support.
3661 *) New function OCSP_parse_url(). This splits up a URL into its host,
3662 port and path components: primarily to parse OCSP URLs. New -url
3663 option to ocsp utility.
3666 *) New nonce behavior. The return value of OCSP_check_nonce() now
3667 reflects the various checks performed. Applications can decide
3668 whether to tolerate certain situations such as an absent nonce
3669 in a response when one was present in a request: the ocsp application
3670 just prints out a warning. New function OCSP_add1_basic_nonce()
3671 this is to allow responders to include a nonce in a response even if
3672 the request is nonce-less.
3675 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3676 skipped when using openssl x509 multiple times on a single input file,
3677 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3680 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3681 set string type: to handle setting ASN1_TIME structures. Fix ca
3682 utility to correctly initialize revocation date of CRLs.
3685 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3686 the clients preferred ciphersuites and rather use its own preferences.
3687 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3688 Internet Explorer by ensuring unchanged hash method during stepup.
3689 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3692 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3693 to aes and add a new 'exist' option to print out symbols that don't
3697 *) Additional options to ocsp utility to allow flags to be set and
3698 additional certificates supplied.
3701 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3702 OCSP client a number of certificate to only verify the response
3706 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3707 handle the new API. Currently only ECB, CBC modes supported. Add new
3710 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3711 Encryption Standard (AES) Ciphersuites for Transport Layer
3712 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3713 not enabled by default and were not part of the "ALL" ciphersuite
3714 alias because they were not yet official; they could be
3715 explicitly requested by specifying the "AESdraft" ciphersuite
3716 group alias. In the final release of OpenSSL 0.9.7, the group
3717 alias is called "AES" and is part of "ALL".)
3718 [Ben Laurie, Steve Henson, Bodo Moeller]
3720 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3721 request to response.
3724 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3725 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3726 extract information from a certificate request. OCSP_response_create()
3727 creates a response and optionally adds a basic response structure.
3728 OCSP_basic_add1_status() adds a complete single response to a basic
3729 response and returns the OCSP_SINGLERESP structure just added (to allow
3730 extensions to be included for example). OCSP_basic_add1_cert() adds a
3731 certificate to a basic response and OCSP_basic_sign() signs a basic
3732 response with various flags. New helper functions ASN1_TIME_check()
3733 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3734 (converts ASN1_TIME to GeneralizedTime).
3737 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3738 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3739 structure from a certificate. X509_pubkey_digest() digests the public_key
3740 contents: this is used in various key identifiers.
3743 *) Make sk_sort() tolerate a NULL argument.
3744 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3746 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3747 passed by the function are trusted implicitly. If any of them signed the
3748 response then it is assumed to be valid and is not verified.
3751 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3752 to data. This was previously part of the PKCS7 ASN1 code. This
3753 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3754 [Steve Henson, reported by Kenneth R. Robinette
3755 <support@securenetterm.com>]
3757 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3758 routines: without these tracing memory leaks is very painful.
3759 Fix leaks in PKCS12 and PKCS7 routines.
3762 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3763 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3764 effectively meant GeneralizedTime would never be used. Now it
3765 is initialised to -1 but X509_time_adj() now has to check the value
3766 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3767 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3768 [Steve Henson, reported by Kenneth R. Robinette
3769 <support@securenetterm.com>]
3771 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3772 result in a zero length in the ASN1_INTEGER structure which was
3773 not consistent with the structure when d2i_ASN1_INTEGER() was used
3774 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3775 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3776 where it did not print out a minus for negative ASN1_INTEGER.
3779 *) Add summary printout to ocsp utility. The various functions which
3780 convert status values to strings have been renamed to:
3781 OCSP_response_status_str(), OCSP_cert_status_str() and
3782 OCSP_crl_reason_str() and are no longer static. New options
3783 to verify nonce values and to disable verification. OCSP response
3784 printout format cleaned up.
3787 *) Add additional OCSP certificate checks. These are those specified
3788 in RFC2560. This consists of two separate checks: the CA of the
3789 certificate being checked must either be the OCSP signer certificate
3790 or the issuer of the OCSP signer certificate. In the latter case the
3791 OCSP signer certificate must contain the OCSP signing extended key
3792 usage. This check is performed by attempting to match the OCSP
3793 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3794 in the OCSP_CERTID structures of the response.
3797 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3798 and related routines. This uses the standard OpenSSL certificate
3799 verify routines to perform initial checks (just CA validity) and
3800 to obtain the certificate chain. Then additional checks will be
3801 performed on the chain. Currently the root CA is checked to see
3802 if it is explicitly trusted for OCSP signing. This is used to set
3803 a root CA as a global signing root: that is any certificate that
3804 chains to that CA is an acceptable OCSP signing certificate.
3807 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3808 extensions from a separate configuration file.
3809 As when reading extensions from the main configuration file,
3810 the '-extensions ...' option may be used for specifying the
3812 [Massimiliano Pala <madwolf@comune.modena.it>]
3814 *) New OCSP utility. Allows OCSP requests to be generated or
3815 read. The request can be sent to a responder and the output
3816 parsed, outputed or printed in text form. Not complete yet:
3817 still needs to check the OCSP response validity.
3820 *) New subcommands for 'openssl ca':
3821 'openssl ca -status <serial>' prints the status of the cert with
3822 the given serial number (according to the index file).
3823 'openssl ca -updatedb' updates the expiry status of certificates
3825 [Massimiliano Pala <madwolf@comune.modena.it>]
3827 *) New '-newreq-nodes' command option to CA.pl. This is like
3828 '-newreq', but calls 'openssl req' with the '-nodes' option
3829 so that the resulting key is not encrypted.
3830 [Damien Miller <djm@mindrot.org>]
3832 *) New configuration for the GNU Hurd.
3833 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3835 *) Initial code to implement OCSP basic response verify. This
3836 is currently incomplete. Currently just finds the signer's
3837 certificate and verifies the signature on the response.
3840 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3841 value of OPENSSLDIR. This is available via the new '-d' option
3842 to 'openssl version', and is also included in 'openssl version -a'.
3845 *) Allowing defining memory allocation callbacks that will be given
3846 file name and line number information in additional arguments
3847 (a const char* and an int). The basic functionality remains, as
3848 well as the original possibility to just replace malloc(),
3849 realloc() and free() by functions that do not know about these
3850 additional arguments. To register and find out the current
3851 settings for extended allocation functions, the following
3852 functions are provided:
3854 CRYPTO_set_mem_ex_functions
3855 CRYPTO_set_locked_mem_ex_functions
3856 CRYPTO_get_mem_ex_functions
3857 CRYPTO_get_locked_mem_ex_functions
3859 These work the same way as CRYPTO_set_mem_functions and friends.
3860 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3861 extended allocation function is enabled.
3862 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3863 a conventional allocation function is enabled.
3864 [Richard Levitte, Bodo Moeller]
3866 *) Finish off removing the remaining LHASH function pointer casts.
3867 There should no longer be any prototype-casting required when using
3868 the LHASH abstraction, and any casts that remain are "bugs". See
3869 the callback types and macros at the head of lhash.h for details
3870 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3873 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3874 If /dev/[u]random devices are not available or do not return enough
3875 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3877 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3878 /etc/entropy will be queried once each in this sequence, quering stops
3879 when enough entropy was collected without querying more sockets.
3882 *) Change the Unix RAND_poll() variant to be able to poll several
3883 random devices, as specified by DEVRANDOM, until a sufficient amount
3884 of data has been collected. We spend at most 10 ms on each file
3885 (select timeout) and read in non-blocking mode. DEVRANDOM now
3886 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3887 (previously it was just the string "/dev/urandom"), so on typical
3888 platforms the 10 ms delay will never occur.
3889 Also separate out the Unix variant to its own file, rand_unix.c.
3890 For VMS, there's a currently-empty rand_vms.c.
3893 *) Move OCSP client related routines to ocsp_cl.c. These
3894 provide utility functions which an application needing
3895 to issue a request to an OCSP responder and analyse the
3896 response will typically need: as opposed to those which an
3897 OCSP responder itself would need which will be added later.
3899 OCSP_request_sign() signs an OCSP request with an API similar
3900 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3901 response. OCSP_response_get1_basic() extracts basic response
3902 from response. OCSP_resp_find_status(): finds and extracts status
3903 information from an OCSP_CERTID structure (which will be created
3904 when the request structure is built). These are built from lower
3905 level functions which work on OCSP_SINGLERESP structures but
3906 wont normally be used unless the application wishes to examine
3907 extensions in the OCSP response for example.
3909 Replace nonce routines with a pair of functions.
3910 OCSP_request_add1_nonce() adds a nonce value and optionally
3911 generates a random value. OCSP_check_nonce() checks the
3912 validity of the nonce in an OCSP response.
3915 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3916 This doesn't copy the supplied OCSP_CERTID and avoids the
3917 need to free up the newly created id. Change return type
3918 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3919 This can then be used to add extensions to the request.
3920 Deleted OCSP_request_new(), since most of its functionality
3921 is now in OCSP_REQUEST_new() (and the case insensitive name
3922 clash) apart from the ability to set the request name which
3923 will be added elsewhere.
3926 *) Update OCSP API. Remove obsolete extensions argument from
3927 various functions. Extensions are now handled using the new
3928 OCSP extension code. New simple OCSP HTTP function which
3929 can be used to send requests and parse the response.
3932 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3933 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3934 uses the special reorder version of SET OF to sort the attributes
3935 and reorder them to match the encoded order. This resolves a long
3936 standing problem: a verify on a PKCS7 structure just after signing
3937 it used to fail because the attribute order did not match the
3938 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3939 it uses the received order. This is necessary to tolerate some broken
3940 software that does not order SET OF. This is handled by encoding
3941 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3942 to produce the required SET OF.
3945 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3946 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3947 files to get correct declarations of the ASN.1 item variables.
3950 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3951 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3952 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3953 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3954 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3955 ASN1_ITEM and no wrapper functions.
3958 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3959 replace the old function pointer based I/O routines. Change most of
3960 the *_d2i_bio() and *_d2i_fp() functions to use these.
3963 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3964 lines, recognice more "algorithms" that can be deselected, and make
3965 it complain about algorithm deselection that isn't recognised.
3968 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3969 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3970 to use new functions. Add NO_ASN1_OLD which can be set to remove
3971 some old style ASN1 functions: this can be used to determine if old
3972 code will still work when these eventually go away.
3975 *) New extension functions for OCSP structures, these follow the
3976 same conventions as certificates and CRLs.
3979 *) New function X509V3_add1_i2d(). This automatically encodes and
3980 adds an extension. Its behaviour can be customised with various
3981 flags to append, replace or delete. Various wrappers added for
3982 certifcates and CRLs.
3985 *) Fix to avoid calling the underlying ASN1 print routine when
3986 an extension cannot be parsed. Correct a typo in the
3987 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3990 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3991 entries for variables.
3994 *) Add functionality to apps/openssl.c for detecting locking
3995 problems: As the program is single-threaded, all we have
3996 to do is register a locking callback using an array for
3997 storing which locks are currently held by the program.
4000 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4001 SSL_get_ex_data_X509_STORE_idx(), which is used in
4002 ssl_verify_cert_chain() and thus can be called at any time
4003 during TLS/SSL handshakes so that thread-safety is essential.
4004 Unfortunately, the ex_data design is not at all suited
4005 for multi-threaded use, so it probably should be abolished.
4008 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4009 [Broadcom, tweaked and integrated by Geoff Thorpe]
4011 *) Move common extension printing code to new function
4012 X509V3_print_extensions(). Reorganise OCSP print routines and
4013 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4016 *) New function X509_signature_print() to remove duplication in some
4020 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4021 set (this was treated exactly the same as SET OF previously). This
4022 is used to reorder the STACK representing the structure to match the
4023 encoding. This will be used to get round a problem where a PKCS7
4024 structure which was signed could not be verified because the STACK
4025 order did not reflect the encoded order.
4028 *) Reimplement the OCSP ASN1 module using the new code.
4031 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4032 for its ASN1 operations. The old style function pointers still exist
4033 for now but they will eventually go away.
4036 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4037 completely replaces the old ASN1 functionality with a table driven
4038 encoder and decoder which interprets an ASN1_ITEM structure describing
4039 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4040 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4041 has also been converted to the new form.
4044 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4045 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4046 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4047 for negative moduli.
4050 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4051 of not touching the result's sign bit.
4054 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4058 *) Changed the LHASH code to use prototypes for callbacks, and created
4059 macros to declare and implement thin (optionally static) functions
4060 that provide type-safety and avoid function pointer casting for the
4061 type-specific callbacks.
4064 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4066 [Veers Staats <staatsvr@asc.hpc.mil>,
4067 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4069 *) Reformat the FAQ so the different questions and answers can be divided
4070 in sections depending on the subject.
4073 *) Have the zlib compression code load ZLIB.DLL dynamically under
4077 *) New function BN_mod_sqrt for computing square roots modulo a prime
4078 (using the probabilistic Tonelli-Shanks algorithm unless
4079 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4080 be handled deterministically).
4081 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4083 *) Make BN_mod_inverse faster by explicitly handling small quotients
4084 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4085 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4088 *) New function BN_kronecker.
4091 *) Fix BN_gcd so that it works on negative inputs; the result is
4092 positive unless both parameters are zero.
4093 Previously something reasonably close to an infinite loop was
4094 possible because numbers could be growing instead of shrinking
4095 in the implementation of Euclid's algorithm.
4098 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4099 sign of the number in question.
4101 Fix BN_is_word(a,w) to work correctly for w == 0.
4103 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4104 because its test if the absolute value of 'a' equals 'w'.
4105 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4106 it exists mostly for use in the implementations of BN_is_zero(),
4107 BN_is_one(), and BN_is_word().
4110 *) New function BN_swap.
4113 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4114 the exponentiation functions are more likely to produce reasonable
4115 results on negative inputs.
4118 *) Change BN_mod_mul so that the result is always non-negative.
4119 Previously, it could be negative if one of the factors was negative;
4120 I don't think anyone really wanted that behaviour.
4123 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4124 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4125 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4126 and add new functions:
4135 BN_mod_lshift1_quick
4139 These functions always generate non-negative results.
4141 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4142 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4144 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4145 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4146 be reduced modulo m.
4147 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4150 The following entry accidentily appeared in the CHANGES file
4151 distributed with OpenSSL 0.9.7. The modifications described in
4152 it do *not* apply to OpenSSL 0.9.7.
4154 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4155 was actually never needed) and in BN_mul(). The removal in BN_mul()
4156 required a small change in bn_mul_part_recursive() and the addition
4157 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4158 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4159 bn_sub_words() and bn_add_words() except they take arrays with
4164 *) In 'openssl passwd', verify passwords read from the terminal
4165 unless the '-salt' option is used (which usually means that
4166 verification would just waste user's time since the resulting
4167 hash is going to be compared with some given password hash)
4168 or the new '-noverify' option is used.
4170 This is an incompatible change, but it does not affect
4171 non-interactive use of 'openssl passwd' (passwords on the command
4172 line, '-stdin' option, '-in ...' option) and thus should not
4176 *) Remove all references to RSAref, since there's no more need for it.
4179 *) Make DSO load along a path given through an environment variable
4180 (SHLIB_PATH) with shl_load().
4183 *) Constify the ENGINE code as a result of BIGNUM constification.
4184 Also constify the RSA code and most things related to it. In a
4185 few places, most notable in the depth of the ASN.1 code, ugly
4186 casts back to non-const were required (to be solved at a later
4190 *) Make it so the openssl application has all engines loaded by default.
4193 *) Constify the BIGNUM routines a little more.
4196 *) Add the following functions:
4198 ENGINE_load_cswift()
4200 ENGINE_load_atalla()
4202 ENGINE_load_builtin_engines()
4204 That way, an application can itself choose if external engines that
4205 are built-in in OpenSSL shall ever be used or not. The benefit is
4206 that applications won't have to be linked with libdl or other dso
4207 libraries unless it's really needed.
4209 Changed 'openssl engine' to load all engines on demand.
4210 Changed the engine header files to avoid the duplication of some
4211 declarations (they differed!).
4214 *) 'openssl engine' can now list capabilities.
4217 *) Better error reporting in 'openssl engine'.
4220 *) Never call load_dh_param(NULL) in s_server.
4223 *) Add engine application. It can currently list engines by name and
4224 identity, and test if they are actually available.
4227 *) Improve RPM specification file by forcing symbolic linking and making
4228 sure the installed documentation is also owned by root.root.
4229 [Damien Miller <djm@mindrot.org>]
4231 *) Give the OpenSSL applications more possibilities to make use of
4232 keys (public as well as private) handled by engines.
4235 *) Add OCSP code that comes from CertCo.
4238 *) Add VMS support for the Rijndael code.
4241 *) Added untested support for Nuron crypto accelerator.
4244 *) Add support for external cryptographic devices. This code was
4245 previously distributed separately as the "engine" branch.
4246 [Geoff Thorpe, Richard Levitte]
4248 *) Rework the filename-translation in the DSO code. It is now possible to
4249 have far greater control over how a "name" is turned into a filename
4250 depending on the operating environment and any oddities about the
4251 different shared library filenames on each system.
4254 *) Support threads on FreeBSD-elf in Configure.
4257 *) Fix for SHA1 assembly problem with MASM: it produces
4258 warnings about corrupt line number information when assembling
4259 with debugging information. This is caused by the overlapping
4261 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4264 NCONF_get_number() has no error checking at all. As a replacement,
4265 NCONF_get_number_e() is defined (_e for "error checking") and is
4266 promoted strongly. The old NCONF_get_number is kept around for
4267 binary backward compatibility.
4268 Make it possible for methods to load from something other than a BIO,
4269 by providing a function pointer that is given a name instead of a BIO.
4270 For example, this could be used to load configuration data from an
4274 *) Fix for non blocking accept BIOs. Added new I/O special reason
4275 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4276 with non blocking I/O was not possible because no retry code was
4277 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4281 *) Added the beginnings of Rijndael support.
4284 *) Fix for bug in DirectoryString mask setting. Add support for
4285 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4286 to allow certificate printing to more controllable, additional
4287 'certopt' option to 'x509' to allow new printing options to be
4291 *) Clean old EAY MD5 hack from e_os.h.
4294 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4296 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4297 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4298 [Joe Orton, Steve Henson]
4300 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4302 *) Fix additional bug revealed by the NISCC test suite:
4304 Stop bug triggering large recursion when presented with
4305 certain ASN.1 tags (CVE-2003-0851)
4308 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4310 *) Fix various bugs revealed by running the NISCC test suite:
4312 Stop out of bounds reads in the ASN1 code when presented with
4313 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4315 If verify callback ignores invalid public key errors don't try to check
4316 certificate signature with the NULL public key.
4320 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4321 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4325 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4326 extra data after the compression methods not only for TLS 1.0
4327 but also for SSL 3.0 (as required by the specification).
4328 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4330 *) Change X509_certificate_type() to mark the key as exported/exportable
4331 when it's 512 *bits* long, not 512 bytes.
4334 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4336 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4337 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4338 a protocol version number mismatch like a decryption error
4339 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4342 *) Turn on RSA blinding by default in the default implementation
4343 to avoid a timing attack. Applications that don't want it can call
4344 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4345 They would be ill-advised to do so in most cases.
4346 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4348 *) Change RSA blinding code so that it works when the PRNG is not
4349 seeded (in this case, the secret RSA exponent is abused as
4350 an unpredictable seed -- if it is not unpredictable, there
4351 is no point in blinding anyway). Make RSA blinding thread-safe
4352 by remembering the creator's thread ID in rsa->blinding and
4353 having all other threads use local one-time blinding factors
4354 (this requires more computation than sharing rsa->blinding, but
4355 avoids excessive locking; and if an RSA object is not shared
4356 between threads, blinding will still be very fast).
4359 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4361 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4362 via timing by performing a MAC computation even if incorrrect
4363 block cipher padding has been found. This is a countermeasure
4364 against active attacks where the attacker has to distinguish
4365 between bad padding and a MAC verification error. (CVE-2003-0078)
4367 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4368 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4369 Martin Vuagnoux (EPFL, Ilion)]
4371 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4373 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4374 memory from it's contents. This is done with a counter that will
4375 place alternating values in each byte. This can be used to solve
4376 two issues: 1) the removal of calls to memset() by highly optimizing
4377 compilers, and 2) cleansing with other values than 0, since those can
4378 be read through on certain media, for example a swap space on disk.
4381 *) Bugfix: client side session caching did not work with external caching,
4382 because the session->cipher setting was not restored when reloading
4383 from the external cache. This problem was masked, when
4384 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4385 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4388 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4389 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4390 [Zeev Lieber <zeev-l@yahoo.com>]
4392 *) Undo an undocumented change introduced in 0.9.6e which caused
4393 repeated calls to OpenSSL_add_all_ciphers() and
4394 OpenSSL_add_all_digests() to be ignored, even after calling
4398 *) Change the default configuration reader to deal with last line not
4399 being properly terminated.
4402 *) Change X509_NAME_cmp() so it applies the special rules on handling
4403 DN values that are of type PrintableString, as well as RDNs of type
4404 emailAddress where the value has the type ia5String.
4405 [stefank@valicert.com via Richard Levitte]
4407 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4408 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4409 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4410 the bitwise-OR of the two for use by the majority of applications
4411 wanting this behaviour, and update the docs. The documented
4412 behaviour and actual behaviour were inconsistent and had been
4413 changing anyway, so this is more a bug-fix than a behavioural
4415 [Geoff Thorpe, diagnosed by Nadav Har'El]
4417 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4418 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4421 *) Fix initialization code race conditions in
4422 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4423 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4424 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4425 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4426 ssl2_get_cipher_by_char(),
4427 ssl3_get_cipher_by_char().
4428 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4430 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4431 the cached sessions are flushed, as the remove_cb() might use ex_data
4432 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4433 (see [openssl.org #212]).
4434 [Geoff Thorpe, Lutz Jaenicke]
4436 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4437 length, instead of the encoding length to d2i_ASN1_OBJECT.
4440 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4442 *) [In 0.9.6g-engine release:]
4443 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4444 [Lynn Gazis <lgazis@rainbow.com>]
4446 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4448 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4449 and get fix the header length calculation.
4450 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4451 Alon Kantor <alonk@checkpoint.com> (and others),
4454 *) Use proper error handling instead of 'assertions' in buffer
4455 overflow checks added in 0.9.6e. This prevents DoS (the
4456 assertions could call abort()).
4457 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4459 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4461 *) Add various sanity checks to asn1_get_length() to reject
4462 the ASN1 length bytes if they exceed sizeof(long), will appear
4463 negative or the content length exceeds the length of the
4465 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4467 *) Fix cipher selection routines: ciphers without encryption had no flags
4468 for the cipher strength set and where therefore not handled correctly
4469 by the selection routines (PR #130).
4472 *) Fix EVP_dsa_sha macro.
4476 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4477 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4478 that was added in OpenSSL 0.9.6d.
4480 As the countermeasure turned out to be incompatible with some
4481 broken SSL implementations, the new option is part of SSL_OP_ALL.
4482 SSL_OP_ALL is usually employed when compatibility with weird SSL
4483 implementations is desired (e.g. '-bugs' option to 's_client' and
4484 's_server'), so the new option is automatically set in many
4488 *) Changes in security patch:
4490 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4491 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4492 Air Force Materiel Command, USAF, under agreement number
4495 *) Add various sanity checks to asn1_get_length() to reject
4496 the ASN1 length bytes if they exceed sizeof(long), will appear
4497 negative or the content length exceeds the length of the
4498 supplied buffer. (CVE-2002-0659)
4499 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4501 *) Assertions for various potential buffer overflows, not known to
4503 [Ben Laurie (CHATS)]
4505 *) Various temporary buffers to hold ASCII versions of integers were
4506 too small for 64 bit platforms. (CVE-2002-0655)
4507 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4509 *) Remote buffer overflow in SSL3 protocol - an attacker could
4510 supply an oversized session ID to a client. (CVE-2002-0656)
4511 [Ben Laurie (CHATS)]
4513 *) Remote buffer overflow in SSL2 protocol - an attacker could
4514 supply an oversized client master key. (CVE-2002-0656)
4515 [Ben Laurie (CHATS)]
4517 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4519 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4520 encoded as NULL) with id-dsa-with-sha1.
4521 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4523 *) Check various X509_...() return values in apps/req.c.
4524 [Nils Larsch <nla@trustcenter.de>]
4526 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4527 an end-of-file condition would erronously be flagged, when the CRLF
4528 was just at the end of a processed block. The bug was discovered when
4529 processing data through a buffering memory BIO handing the data to a
4530 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4531 <ptsekov@syntrex.com> and Nedelcho Stanev.
4534 *) Implement a countermeasure against a vulnerability recently found
4535 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4536 before application data chunks to avoid the use of known IVs
4537 with data potentially chosen by the attacker.
4540 *) Fix length checks in ssl3_get_client_hello().
4543 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4544 to prevent ssl3_read_internal() from incorrectly assuming that
4545 ssl3_read_bytes() found application data while handshake
4546 processing was enabled when in fact s->s3->in_read_app_data was
4547 merely automatically cleared during the initial handshake.
4548 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4550 *) Fix object definitions for Private and Enterprise: they were not
4551 recognized in their shortname (=lowercase) representation. Extend
4552 obj_dat.pl to issue an error when using undefined keywords instead
4553 of silently ignoring the problem (Svenning Sorensen
4554 <sss@sss.dnsalias.net>).
4557 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4558 generators, i.e. generators other than 2 and 5. (Previously, the
4559 code did not properly initialise the 'add' and 'rem' values to
4560 BN_generate_prime().)
4562 In the new general case, we do not insist that 'generator' is
4563 actually a primitive root: This requirement is rather pointless;
4564 a generator of the order-q subgroup is just as good, if not
4568 *) Map new X509 verification errors to alerts. Discovered and submitted by
4569 Tom Wu <tom@arcot.com>.
4572 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4573 returning non-zero before the data has been completely received
4574 when using non-blocking I/O.
4575 [Bodo Moeller; problem pointed out by John Hughes]
4577 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4578 [Ben Laurie, Lutz Jaenicke]
4580 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4581 Yoram Zahavi <YoramZ@gilian.com>).
4584 *) Add information about CygWin 1.3 and on, and preserve proper
4585 configuration for the versions before that.
4586 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4588 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4589 check whether we deal with a copy of a session and do not delete from
4590 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4591 <izhar@checkpoint.com>.
4594 *) Do not store session data into the internal session cache, if it
4595 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4596 flag is set). Proposed by Aslam <aslam@funk.com>.
4599 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4603 *) [In 0.9.6d-engine release:]
4604 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4605 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4607 *) Add the configuration target linux-s390x.
4608 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4610 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4611 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4612 variable as an indication that a ClientHello message has been
4613 received. As the flag value will be lost between multiple
4614 invocations of ssl3_accept when using non-blocking I/O, the
4615 function may not be aware that a handshake has actually taken
4616 place, thus preventing a new session from being added to the
4619 To avoid this problem, we now set s->new_session to 2 instead of
4620 using a local variable.
4621 [Lutz Jaenicke, Bodo Moeller]
4623 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4624 if the SSL_R_LENGTH_MISMATCH error is detected.
4625 [Geoff Thorpe, Bodo Moeller]
4627 *) New 'shared_ldflag' column in Configure platform table.
4630 *) Fix EVP_CIPHER_mode macro.
4631 ["Dan S. Camper" <dan@bti.net>]
4633 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4634 type, we must throw them away by setting rr->length to 0.
4635 [D P Chang <dpc@qualys.com>]
4637 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4639 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4640 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4641 worked incorrectly for those cases where range = 10..._2 and
4642 3*range is two bits longer than range.)
4645 *) Only add signing time to PKCS7 structures if it is not already
4649 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4650 OBJ_ld_ce should be OBJ_id_ce.
4651 Also some ip-pda OIDs in crypto/objects/objects.txt were
4652 incorrect (cf. RFC 3039).
4653 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4655 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4656 returns early because it has nothing to do.
4657 [Andy Schneider <andy.schneider@bjss.co.uk>]
4659 *) [In 0.9.6c-engine release:]
4660 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4661 [Andy Schneider <andy.schneider@bjss.co.uk>]
4663 *) [In 0.9.6c-engine release:]
4664 Add support for Cryptographic Appliance's keyserver technology.
4665 (Use engine 'keyclient')
4666 [Cryptographic Appliances and Geoff Thorpe]
4668 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4669 is called via tools/c89.sh because arguments have to be
4670 rearranged (all '-L' options must appear before the first object
4672 [Richard Shapiro <rshapiro@abinitio.com>]
4674 *) [In 0.9.6c-engine release:]
4675 Add support for Broadcom crypto accelerator cards, backported
4677 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4679 *) [In 0.9.6c-engine release:]
4680 Add support for SureWare crypto accelerator cards from
4681 Baltimore Technologies. (Use engine 'sureware')
4682 [Baltimore Technologies and Mark Cox]
4684 *) [In 0.9.6c-engine release:]
4685 Add support for crypto accelerator cards from Accelerated
4686 Encryption Processing, www.aep.ie. (Use engine 'aep')
4687 [AEP Inc. and Mark Cox]
4689 *) Add a configuration entry for gcc on UnixWare.
4690 [Gary Benson <gbenson@redhat.com>]
4692 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4693 messages are stored in a single piece (fixed-length part and
4694 variable-length part combined) and fix various bugs found on the way.
4697 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4698 instead. BIO_gethostbyname() does not know what timeouts are
4699 appropriate, so entries would stay in cache even when they have
4701 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4703 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4704 faced with a pathologically small ClientHello fragment that does
4705 not contain client_version: Instead of aborting with an error,
4706 simply choose the highest available protocol version (i.e.,
4707 TLS 1.0 unless it is disabled). In practice, ClientHello
4708 messages are never sent like this, but this change gives us
4709 strictly correct behaviour at least for TLS.
4712 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4713 never resets s->method to s->ctx->method when called from within
4714 one of the SSL handshake functions.
4715 [Bodo Moeller; problem pointed out by Niko Baric]
4717 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4718 (sent using the client's version number) if client_version is
4719 smaller than the protocol version in use. Also change
4720 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4721 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4722 the client will at least see that alert.
4725 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4729 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4730 client receives HelloRequest while in a handshake.
4731 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4733 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4734 should end in 'break', not 'goto end' which circuments various
4735 cleanups done in state SSL_ST_OK. But session related stuff
4736 must be disabled for SSL_ST_OK in the case that we just sent a
4739 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4740 before just sending a HelloRequest.
4741 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4743 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4744 reveal whether illegal block cipher padding was found or a MAC
4745 verification error occured. (Neither SSLerr() codes nor alerts
4746 are directly visible to potential attackers, but the information
4747 may leak via logfiles.)
4749 Similar changes are not required for the SSL 2.0 implementation
4750 because the number of padding bytes is sent in clear for SSL 2.0,
4751 and the extra bytes are just ignored. However ssl/s2_pkt.c
4752 failed to verify that the purported number of padding bytes is in
4756 *) Add OpenUNIX-8 support including shared libraries
4757 (Boyd Lynn Gerber <gerberb@zenez.com>).
4760 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4761 'wristwatch attack' using huge encoding parameters (cf.
4762 James H. Manger's CRYPTO 2001 paper). Note that the
4763 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4764 encoding parameters and hence was not vulnerable.
4767 *) BN_sqr() bug fix.
4768 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4770 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4771 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4772 followed by modular reduction.
4773 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4775 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4776 equivalent based on BN_pseudo_rand() instead of BN_rand().
4779 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4780 This function was broken, as the check for a new client hello message
4781 to handle SGC did not allow these large messages.
4782 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4785 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4788 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4789 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4792 *) Rework the configuration and shared library support for Tru64 Unix.
4793 The configuration part makes use of modern compiler features and
4794 still retains old compiler behavior for those that run older versions
4795 of the OS. The shared library support part includes a variant that
4796 uses the RPATH feature, and is available through the special
4797 configuration target "alpha-cc-rpath", which will never be selected
4799 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4801 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4802 with the same message size as in ssl3_get_certificate_request().
4803 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4804 messages might inadvertently be reject as too long.
4805 [Petr Lampa <lampa@fee.vutbr.cz>]
4807 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4810 *) Modified SSL library such that the verify_callback that has been set
4811 specificly for an SSL object with SSL_set_verify() is actually being
4812 used. Before the change, a verify_callback set with this function was
4813 ignored and the verify_callback() set in the SSL_CTX at the time of
4814 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4815 to allow the necessary settings.
4818 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4819 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4820 done automatically (in contradiction to the requirements of the C
4821 standard). This made problems when used from OpenSSH.
4824 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4825 dh->length and always used
4827 BN_rand_range(priv_key, dh->p).
4829 BN_rand_range() is not necessary for Diffie-Hellman, and this
4830 specific range makes Diffie-Hellman unnecessarily inefficient if
4831 dh->length (recommended exponent length) is much smaller than the
4832 length of dh->p. We could use BN_rand_range() if the order of
4833 the subgroup was stored in the DH structure, but we only have
4838 BN_rand(priv_key, l, ...)
4840 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4846 RSA_eay_public_encrypt
4847 RSA_eay_private_decrypt
4848 RSA_eay_private_encrypt (signing)
4849 RSA_eay_public_decrypt (signature verification)
4851 (default implementations for RSA_public_encrypt,
4852 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4853 always reject numbers >= n.
4856 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4857 to synchronize access to 'locking_thread'. This is necessary on
4858 systems where access to 'locking_thread' (an 'unsigned long'
4859 variable) is not atomic.
4862 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4863 *before* setting the 'crypto_lock_rand' flag. The previous code had
4864 a race condition if 0 is a valid thread ID.
4865 [Travis Vitek <vitek@roguewave.com>]
4867 *) Add support for shared libraries under Irix.
4868 [Albert Chin-A-Young <china@thewrittenword.com>]
4870 *) Add configuration option to build on Linux on both big-endian and
4872 [Ralf Baechle <ralf@uni-koblenz.de>]
4874 *) Add the possibility to create shared libraries on HP-UX.
4877 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4879 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4880 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4881 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4882 PRNG state recovery was possible based on the output of
4883 one PRNG request appropriately sized to gain knowledge on
4884 'md' followed by enough consecutive 1-byte PRNG requests
4885 to traverse all of 'state'.
4887 1. When updating 'md_local' (the current thread's copy of 'md')
4888 during PRNG output generation, hash all of the previous
4889 'md_local' value, not just the half used for PRNG output.
4891 2. Make the number of bytes from 'state' included into the hash
4892 independent from the number of PRNG bytes requested.
4894 The first measure alone would be sufficient to avoid
4895 Markku-Juhani's attack. (Actually it had never occurred
4896 to me that the half of 'md_local' used for chaining was the
4897 half from which PRNG output bytes were taken -- I had always
4898 assumed that the secret half would be used.) The second
4899 measure makes sure that additional data from 'state' is never
4900 mixed into 'md_local' in small portions; this heuristically
4901 further strengthens the PRNG.
4904 *) Fix crypto/bn/asm/mips3.s.
4907 *) When only the key is given to "enc", the IV is undefined. Print out
4908 an error message in this case.
4911 *) Handle special case when X509_NAME is empty in X509 printing routines.
4914 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4915 positive and less than q.
4918 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4919 used: it isn't thread safe and the add_lock_callback should handle
4921 [Paul Rose <Paul.Rose@bridge.com>]
4923 *) Verify that incoming data obeys the block size in
4924 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4928 [Ulf Möller, Bodo Möller]
4930 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4931 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4932 when fixing the server behaviour for backwards-compatible 'client
4933 hello' messages. (Note that the attack is impractical against
4934 SSL 3.0 and TLS 1.0 anyway because length and version checking
4935 means that the probability of guessing a valid ciphertext is
4936 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4939 Before 0.9.5, the countermeasure (hide the error by generating a
4940 random 'decryption result') did not work properly because
4941 ERR_clear_error() was missing, meaning that SSL_get_error() would
4942 detect the supposedly ignored error.
4944 Both problems are now fixed.
4947 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4948 (previously it was 1024).
4951 *) Fix for compatibility mode trust settings: ignore trust settings
4952 unless some valid trust or reject settings are present.
4955 *) Fix for blowfish EVP: its a variable length cipher.
4958 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4959 parameters in DSA public key structures and return an error in the
4960 DSA routines if parameters are absent.
4963 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4964 in the current directory if neither $RANDFILE nor $HOME was set.
4965 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4966 caused some confusion to Windows users who haven't defined $HOME.
4967 Thus RAND_file_name() is changed again: e_os.h can define a
4968 DEFAULT_HOME, which will be used if $HOME is not set.
4969 For Windows, we use "C:"; on other platforms, we still require
4970 environment variables.
4972 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4973 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4974 having multiple threads call RAND_poll() concurrently.
4977 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4978 combination of a flag and a thread ID variable.
4979 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4980 flag), *other* threads can enter ssleay_add_bytes without obeying
4981 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4982 that they do not hold after the first thread unsets add_do_not_lock).
4985 *) Change bctest again: '-x' expressions are not available in all
4989 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4991 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4992 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4994 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4995 the default extension for executables, if any. Also, make the perl
4996 scripts that use symlink() to test if it really exists and use "cp"
4997 if it doesn't. All this made OpenSSL compilable and installable in
5001 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5002 If SEQUENCE is length is indefinite just set c->slen to the total
5003 amount of data available.
5004 [Steve Henson, reported by shige@FreeBSD.org]
5005 [This change does not apply to 0.9.7.]
5007 *) Change bctest to avoid here-documents inside command substitution
5008 (workaround for FreeBSD /bin/sh bug).
5009 For compatibility with Ultrix, avoid shell functions (introduced
5010 in the bctest version that searches along $PATH).
5013 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5014 with des_encrypt() defined on some operating systems, like Solaris
5018 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5019 On the Importance of Eliminating Errors in Cryptographic
5020 Computations, J. Cryptology 14 (2001) 2, 101-119,
5021 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5024 *) MIPS assembler BIGNUM division bug fix.
5027 *) Disabled incorrect Alpha assembler code.
5030 *) Fix PKCS#7 decode routines so they correctly update the length
5031 after reading an EOC for the EXPLICIT tag.
5033 [This change does not apply to 0.9.7.]
5035 *) Fix bug in PKCS#12 key generation routines. This was triggered
5036 if a 3DES key was generated with a 0 initial byte. Include
5037 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5038 (but broken) behaviour.
5041 *) Enhance bctest to search for a working bc along $PATH and print
5043 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5045 *) Fix memory leaks in err.c: free err_data string if necessary;
5046 don't write to the wrong index in ERR_set_error_data.
5049 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5053 *) Replace rdtsc with _emit statements for VC++ version 5.
5054 [Jeremy Cooper <jeremy@baymoo.org>]
5056 *) Make it possible to reuse SSLv2 sessions.
5059 *) In copy_email() check for >= 0 as a return value for
5060 X509_NAME_get_index_by_NID() since 0 is a valid index.
5061 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5063 *) Avoid coredump with unsupported or invalid public keys by checking if
5064 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5065 PKCS7_verify() fails with non detached data.
5068 *) Don't use getenv in library functions when run as setuid/setgid.
5069 New function OPENSSL_issetugid().
5072 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5073 due to incorrect handling of multi-threading:
5075 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5077 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5079 3. Count how many times MemCheck_off() has been called so that
5080 nested use can be treated correctly. This also avoids
5081 inband-signalling in the previous code (which relied on the
5082 assumption that thread ID 0 is impossible).
5085 *) Add "-rand" option also to s_client and s_server.
5088 *) Fix CPU detection on Irix 6.x.
5089 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5090 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5092 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5095 [This change does not apply to 0.9.7.]
5097 *) Use the cached encoding of an X509_NAME structure rather than
5098 copying it. This is apparently the reason for the libsafe "errors"
5099 but the code is actually correct.
5102 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5103 Bleichenbacher's DSA attack.
5104 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5105 to be set and top=0 forces the highest bit to be set; top=-1 is new
5106 and leaves the highest bit random.
5107 [Ulf Moeller, Bodo Moeller]
5109 *) In the NCONF_...-based implementations for CONF_... queries
5110 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5111 a temporary CONF structure with the data component set to NULL
5112 (which gives segmentation faults in lh_retrieve).
5113 Instead, use NULL for the CONF pointer in CONF_get_string and
5114 CONF_get_number (which may use environment variables) and directly
5115 return NULL from CONF_get_section.
5118 *) Fix potential buffer overrun for EBCDIC.
5121 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5122 keyUsage if basicConstraints absent for a CA.
5125 *) Make SMIME_write_PKCS7() write mail header values with a format that
5126 is more generally accepted (no spaces before the semicolon), since
5127 some programs can't parse those values properly otherwise. Also make
5128 sure BIO's that break lines after each write do not create invalid
5132 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5133 macros previously used would not encode an empty SEQUENCE OF
5134 and break the signature.
5136 [This change does not apply to 0.9.7.]
5138 *) Zero the premaster secret after deriving the master secret in
5142 *) Add some EVP_add_digest_alias registrations (as found in
5143 OpenSSL_add_all_digests()) to SSL_library_init()
5144 aka OpenSSL_add_ssl_algorithms(). This provides improved
5145 compatibility with peers using X.509 certificates
5146 with unconventional AlgorithmIdentifier OIDs.
5149 *) Fix for Irix with NO_ASM.
5150 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5152 *) ./config script fixes.
5153 [Ulf Moeller, Richard Levitte]
5155 *) Fix 'openssl passwd -1'.
5158 *) Change PKCS12_key_gen_asc() so it can cope with non null
5159 terminated strings whose length is passed in the passlen
5160 parameter, for example from PEM callbacks. This was done
5161 by adding an extra length parameter to asc2uni().
5162 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5164 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5165 call failed, free the DSA structure.
5168 *) Fix to uni2asc() to cope with zero length Unicode strings.
5169 These are present in some PKCS#12 files.
5172 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5173 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5174 when writing a 32767 byte record.
5175 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5177 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5178 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5180 (RSA objects have a reference count access to which is protected
5181 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5182 so they are meant to be shared between threads.)
5183 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5184 "Reddie, Steven" <Steven.Reddie@ca.com>]
5186 *) Fix a deadlock in CRYPTO_mem_leaks().
5189 *) Use better test patterns in bntest.
5192 *) rand_win.c fix for Borland C.
5195 *) BN_rshift bugfix for n == 0.
5198 *) Add a 'bctest' script that checks for some known 'bc' bugs
5199 so that 'make test' does not abort just because 'bc' is broken.
5202 *) Store verify_result within SSL_SESSION also for client side to
5203 avoid potential security hole. (Re-used sessions on the client side
5204 always resulted in verify_result==X509_V_OK, not using the original
5205 result of the server certificate verification.)
5208 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5209 SSL3_RT_APPLICATION_DATA, return 0.
5210 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5214 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5215 releases, have been re-implemented by renaming the previous
5216 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5217 and ssl3_read_internal, respectively, and adding 'peek' parameters
5218 to them. The new ssl[23]_{read,peek} functions are calls to
5219 ssl[23]_read_internal with the 'peek' flag set appropriately.
5220 A 'peek' parameter has also been added to ssl3_read_bytes, which
5221 does the actual work for ssl3_read_internal.
5224 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5225 the method-specific "init()" handler. Also clean up ex_data after
5226 calling the method-specific "finish()" handler. Previously, this was
5227 happening the other way round.
5230 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5231 The previous value, 12, was not always sufficient for BN_mod_exp().
5234 *) Make sure that shared libraries get the internal name engine with
5235 the full version number and not just 0. This should mark the
5236 shared libraries as not backward compatible. Of course, this should
5237 be changed again when we can guarantee backward binary compatibility.
5240 *) Fix typo in get_cert_by_subject() in by_dir.c
5241 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5243 *) Rework the system to generate shared libraries:
5245 - Make note of the expected extension for the shared libraries and
5246 if there is a need for symbolic links from for example libcrypto.so.0
5247 to libcrypto.so.0.9.7. There is extended info in Configure for
5250 - Make as few rebuilds of the shared libraries as possible.
5252 - Still avoid linking the OpenSSL programs with the shared libraries.
5254 - When installing, install the shared libraries separately from the
5258 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5260 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5261 and not in SSL_clear because the latter is also used by the
5262 accept/connect functions; previously, the settings made by
5263 SSL_set_read_ahead would be lost during the handshake.
5264 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5266 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5267 Previously, it would create entries for disableed algorithms no
5271 *) Added several new manual pages for SSL_* function.
5274 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5276 *) In ssl23_get_client_hello, generate an error message when faced
5277 with an initial SSL 3.0/TLS record that is too small to contain the
5278 first two bytes of the ClientHello message, i.e. client_version.
5279 (Note that this is a pathologic case that probably has never happened
5280 in real life.) The previous approach was to use the version number
5281 from the record header as a substitute; but our protocol choice
5282 should not depend on that one because it is not authenticated
5283 by the Finished messages.
5286 *) More robust randomness gathering functions for Windows.
5287 [Jeffrey Altman <jaltman@columbia.edu>]
5289 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5290 not set then we don't setup the error code for issuer check errors
5291 to avoid possibly overwriting other errors which the callback does
5292 handle. If an application does set the flag then we assume it knows
5293 what it is doing and can handle the new informational codes
5297 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5298 a general "ANY" type, as such it should be able to decode anything
5299 including tagged types. However it didn't check the class so it would
5300 wrongly interpret tagged types in the same way as their universal
5301 counterpart and unknown types were just rejected. Changed so that the
5302 tagged and unknown types are handled in the same way as a SEQUENCE:
5303 that is the encoding is stored intact. There is also a new type
5304 "V_ASN1_OTHER" which is used when the class is not universal, in this
5305 case we have no idea what the actual type is so we just lump them all
5309 *) On VMS, stdout may very well lead to a file that is written to
5310 in a record-oriented fashion. That means that every write() will
5311 write a separate record, which will be read separately by the
5312 programs trying to read from it. This can be very confusing.
5314 The solution is to put a BIO filter in the way that will buffer
5315 text until a linefeed is reached, and then write everything a
5316 line at a time, so every record written will be an actual line,
5317 not chunks of lines and not (usually doesn't happen, but I've
5318 seen it once) several lines in one record. BIO_f_linebuffer() is
5321 Currently, it's a VMS-only method, because that's where it has
5322 been tested well enough.
5325 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5326 it can return incorrect results.
5327 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5328 but it was in 0.9.6-beta[12].)
5331 *) Disable the check for content being present when verifying detached
5332 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5333 include zero length content when signing messages.
5336 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5337 BIO_ctrl (for BIO pairs).
5340 *) Add DSO method for VMS.
5343 *) Bug fix: Montgomery multiplication could produce results with the
5347 *) Add RPM specification openssl.spec and modify it to build three
5348 packages. The default package contains applications, application
5349 documentation and run-time libraries. The devel package contains
5350 include files, static libraries and function documentation. The
5351 doc package contains the contents of the doc directory. The original
5352 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5355 *) Add a large number of documentation files for many SSL routines.
5356 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5358 *) Add a configuration entry for Sony News 4.
5359 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5361 *) Don't set the two most significant bits to one when generating a
5362 random number < q in the DSA library.
5365 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5366 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5367 the underlying transport is blocking) if a handshake took place.
5368 (The default behaviour is needed by applications such as s_client
5369 and s_server that use select() to determine when to use SSL_read;
5370 but for applications that know in advance when to expect data, it
5371 just makes things more complicated.)
5374 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5378 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5379 work better on such systems.
5380 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5382 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5383 Update PKCS12_parse() so it copies the friendlyName and the
5384 keyid to the certificates aux info.
5387 *) Fix bug in PKCS7_verify() which caused an infinite loop
5388 if there was more than one signature.
5389 [Sven Uszpelkat <su@celocom.de>]
5391 *) Major change in util/mkdef.pl to include extra information
5392 about each symbol, as well as presentig variables as well
5393 as functions. This change means that there's n more need
5394 to rebuild the .num files when some algorithms are excluded.
5397 *) Allow the verify time to be set by an application,
5398 rather than always using the current time.
5401 *) Phase 2 verify code reorganisation. The certificate
5402 verify code now looks up an issuer certificate by a
5403 number of criteria: subject name, authority key id
5404 and key usage. It also verifies self signed certificates
5405 by the same criteria. The main comparison function is
5406 X509_check_issued() which performs these checks.
5408 Lot of changes were necessary in order to support this
5409 without completely rewriting the lookup code.
5411 Authority and subject key identifier are now cached.
5413 The LHASH 'certs' is X509_STORE has now been replaced
5414 by a STACK_OF(X509_OBJECT). This is mainly because an
5415 LHASH can't store or retrieve multiple objects with
5416 the same hash value.
5418 As a result various functions (which were all internal
5419 use only) have changed to handle the new X509_STORE
5420 structure. This will break anything that messed round
5421 with X509_STORE internally.
5423 The functions X509_STORE_add_cert() now checks for an
5424 exact match, rather than just subject name.
5426 The X509_STORE API doesn't directly support the retrieval
5427 of multiple certificates matching a given criteria, however
5428 this can be worked round by performing a lookup first
5429 (which will fill the cache with candidate certificates)
5430 and then examining the cache for matches. This is probably
5431 the best we can do without throwing out X509_LOOKUP
5432 entirely (maybe later...).
5434 The X509_VERIFY_CTX structure has been enhanced considerably.
5436 All certificate lookup operations now go via a get_issuer()
5437 callback. Although this currently uses an X509_STORE it
5438 can be replaced by custom lookups. This is a simple way
5439 to bypass the X509_STORE hackery necessary to make this
5440 work and makes it possible to use more efficient techniques
5441 in future. A very simple version which uses a simple
5442 STACK for its trusted certificate store is also provided
5443 using X509_STORE_CTX_trusted_stack().
5445 The verify_cb() and verify() callbacks now have equivalents
5446 in the X509_STORE_CTX structure.
5448 X509_STORE_CTX also has a 'flags' field which can be used
5449 to customise the verify behaviour.
5452 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5453 excludes S/MIME capabilities.
5456 *) When a certificate request is read in keep a copy of the
5457 original encoding of the signed data and use it when outputing
5458 again. Signatures then use the original encoding rather than
5459 a decoded, encoded version which may cause problems if the
5460 request is improperly encoded.
5463 *) For consistency with other BIO_puts implementations, call
5464 buffer_write(b, ...) directly in buffer_puts instead of calling
5467 In BIO_puts, increment b->num_write as in BIO_write.
5468 [Peter.Sylvester@EdelWeb.fr]
5470 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5471 BN_zero, we may not return a BIGNUM with an array consisting of
5475 *) Avoid calling abort() from within the library when problems are
5476 detected, except if preprocessor symbols have been defined
5477 (such as REF_CHECK, BN_DEBUG etc.).
5480 *) New openssl application 'rsautl'. This utility can be
5481 used for low level RSA operations. DER public key
5482 BIO/fp routines also added.
5485 *) New Configure entry and patches for compiling on QNX 4.
5486 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5488 *) A demo state-machine implementation was sponsored by
5489 Nuron (http://www.nuron.com/) and is now available in
5490 demos/state_machine.
5493 *) New options added to the 'dgst' utility for signature
5494 generation and verification.
5497 *) Unrecognized PKCS#7 content types are now handled via a
5498 catch all ASN1_TYPE structure. This allows unsupported
5499 types to be stored as a "blob" and an application can
5500 encode and decode it manually.
5503 *) Fix various signed/unsigned issues to make a_strex.c
5505 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5507 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5508 length if passed a buffer. ASN1_INTEGER_to_BN failed
5509 if passed a NULL BN and its argument was negative.
5510 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5512 *) Modification to PKCS#7 encoding routines to output definite
5513 length encoding. Since currently the whole structures are in
5514 memory there's not real point in using indefinite length
5515 constructed encoding. However if OpenSSL is compiled with
5516 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5519 *) Added BIO_vprintf() and BIO_vsnprintf().
5522 *) Added more prefixes to parse for in the the strings written
5523 through a logging bio, to cover all the levels that are available
5524 through syslog. The prefixes are now:
5526 PANIC, EMERG, EMR => LOG_EMERG
5527 ALERT, ALR => LOG_ALERT
5528 CRIT, CRI => LOG_CRIT
5529 ERROR, ERR => LOG_ERR
5530 WARNING, WARN, WAR => LOG_WARNING
5531 NOTICE, NOTE, NOT => LOG_NOTICE
5532 INFO, INF => LOG_INFO
5533 DEBUG, DBG => LOG_DEBUG
5535 and as before, if none of those prefixes are present at the
5536 beginning of the string, LOG_ERR is chosen.
5538 On Win32, the LOG_* levels are mapped according to this:
5540 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5541 LOG_WARNING => EVENTLOG_WARNING_TYPE
5542 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5546 *) Made it possible to reconfigure with just the configuration
5547 argument "reconf" or "reconfigure". The command line arguments
5548 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5549 and are retrieved from there when reconfiguring.
5553 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5555 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5558 *) The obj_dat.pl script was messing up the sorting of object
5559 names. The reason was that it compared the quoted version
5560 of strings as a result "OCSP" > "OCSP Signing" because
5561 " > SPACE. Changed script to store unquoted versions of
5562 names and add quotes on output. It was also omitting some
5563 names from the lookup table if they were given a default
5564 value (that is if SN is missing it is given the same
5565 value as LN and vice versa), these are now added on the
5566 grounds that if an object has a name we should be able to
5567 look it up. Finally added warning output when duplicate
5568 short or long names are found.
5571 *) Changes needed for Tandem NSK.
5572 [Scott Uroff <scott@xypro.com>]
5574 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5575 RSA_padding_check_SSLv23(), special padding was never detected
5576 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5577 version rollback attacks was not effective.
5579 In s23_clnt.c, don't use special rollback-attack detection padding
5580 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5581 client; similarly, in s23_srvr.c, don't do the rollback check if
5582 SSL 2.0 is the only protocol enabled in the server.
5585 *) Make it possible to get hexdumps of unprintable data with 'openssl
5586 asn1parse'. By implication, the functions ASN1_parse_dump() and
5587 BIO_dump_indent() are added.
5590 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5591 these print out strings and name structures based on various
5592 flags including RFC2253 support and proper handling of
5593 multibyte characters. Added options to the 'x509' utility
5594 to allow the various flags to be set.
5597 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5598 Also change the functions X509_cmp_current_time() and
5599 X509_gmtime_adj() work with an ASN1_TIME structure,
5600 this will enable certificates using GeneralizedTime in validity
5601 dates to be checked.
5604 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5605 negative public key encodings) on by default,
5606 NO_NEG_PUBKEY_BUG can be set to disable it.
5609 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5610 content octets. An i2c_ASN1_OBJECT is unnecessary because
5611 the encoding can be trivially obtained from the structure.
5614 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5615 not read locks (CRYPTO_r_[un]lock).
5618 *) A first attempt at creating official support for shared
5619 libraries through configuration. I've kept it so the
5620 default is static libraries only, and the OpenSSL programs
5621 are always statically linked for now, but there are
5622 preparations for dynamic linking in place.
5623 This has been tested on Linux and Tru64.
5626 *) Randomness polling function for Win9x, as described in:
5627 Peter Gutmann, Software Generation of Practically Strong
5631 *) Fix so PRNG is seeded in req if using an already existing
5635 *) New options to smime application. -inform and -outform
5636 allow alternative formats for the S/MIME message including
5637 PEM and DER. The -content option allows the content to be
5638 specified separately. This should allow things like Netscape
5639 form signing output easier to verify.
5642 *) Fix the ASN1 encoding of tags using the 'long form'.
5645 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5646 STRING types. These convert content octets to and from the
5647 underlying type. The actual tag and length octets are
5648 already assumed to have been read in and checked. These
5649 are needed because all other string types have virtually
5650 identical handling apart from the tag. By having versions
5651 of the ASN1 functions that just operate on content octets
5652 IMPLICIT tagging can be handled properly. It also allows
5653 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5654 and ASN1_INTEGER are identical apart from the tag.
5657 *) Change the handling of OID objects as follows:
5659 - New object identifiers are inserted in objects.txt, following
5660 the syntax given in objects.README.
5661 - objects.pl is used to process obj_mac.num and create a new
5663 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5666 This is currently kind of a hack, and the perl code in objects.pl
5667 isn't very elegant, but it works as I intended. The simplest way
5668 to check that it worked correctly is to look in obj_dat.h and
5669 check the array nid_objs and make sure the objects haven't moved
5670 around (this is important!). Additions are OK, as well as
5671 consistent name changes.
5674 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5677 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5678 The given file adds to whatever has already been seeded into the
5679 random pool through the RANDFILE configuration file option or
5680 environment variable, or the default random state file.
5683 *) mkstack.pl now sorts each macro group into lexical order.
5684 Previously the output order depended on the order the files
5685 appeared in the directory, resulting in needless rewriting
5689 *) Patches to make OpenSSL compile under Win32 again. Mostly
5690 work arounds for the VC++ problem that it treats func() as
5691 func(void). Also stripped out the parts of mkdef.pl that
5692 added extra typesafe functions: these no longer exist.
5695 *) Reorganisation of the stack code. The macros are now all
5696 collected in safestack.h . Each macro is defined in terms of
5697 a "stack macro" of the form SKM_<name>(type, a, b). The
5698 DEBUG_SAFESTACK is now handled in terms of function casts,
5699 this has the advantage of retaining type safety without the
5700 use of additional functions. If DEBUG_SAFESTACK is not defined
5701 then the non typesafe macros are used instead. Also modified the
5702 mkstack.pl script to handle the new form. Needs testing to see
5703 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5704 the default if no major problems. Similar behaviour for ASN1_SET_OF
5705 and PKCS12_STACK_OF.
5708 *) When some versions of IIS use the 'NET' form of private key the
5709 key derivation algorithm is different. Normally MD5(password) is
5710 used as a 128 bit RC4 key. In the modified case
5711 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5712 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5713 as the old Netscape_RSA functions except they have an additional
5714 'sgckey' parameter which uses the modified algorithm. Also added
5715 an -sgckey command line option to the rsa utility. Thanks to
5716 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5717 algorithm to openssl-dev.
5720 *) The evp_local.h macros were using 'c.##kname' which resulted in
5721 invalid expansion on some systems (SCO 5.0.5 for example).
5722 Corrected to 'c.kname'.
5723 [Phillip Porch <root@theporch.com>]
5725 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5726 a STACK of email addresses from a certificate or request, these look
5727 in the subject name and the subject alternative name extensions and
5728 omit any duplicate addresses.
5731 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5732 This makes DSA verification about 2 % faster.
5735 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5736 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5737 plus overhead for 1024 bit moduli).
5738 This makes exponentiations about 0.5 % faster for 1024 bit
5739 exponents (as measured by "openssl speed rsa2048").
5742 *) Rename memory handling macros to avoid conflicts with other
5744 Malloc => OPENSSL_malloc
5745 Malloc_locked => OPENSSL_malloc_locked
5746 Realloc => OPENSSL_realloc
5747 Free => OPENSSL_free
5750 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5751 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5754 *) CygWin32 support.
5755 [John Jarvie <jjarvie@newsguy.com>]
5757 *) The type-safe stack code has been rejigged. It is now only compiled
5758 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5759 by default all type-specific stack functions are "#define"d back to
5760 standard stack functions. This results in more streamlined output
5761 but retains the type-safety checking possibilities of the original
5765 *) The STACK code has been cleaned up, and certain type declarations
5766 that didn't make a lot of sense have been brought in line. This has
5767 also involved a cleanup of sorts in safestack.h to more correctly
5768 map type-safe stack functions onto their plain stack counterparts.
5769 This work has also resulted in a variety of "const"ifications of
5770 lots of the code, especially "_cmp" operations which should normally
5771 be prototyped with "const" parameters anyway.
5774 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5775 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5776 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5777 where all of 'md' is used each time the PRNG is used, but 'state'
5778 is used only indexed by a cyclic counter. As entropy may not be
5779 well distributed from the beginning, 'md' is important as a
5780 chaining variable. However, the output function chains only half
5781 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5782 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5783 in all of 'state' being rewritten, with the new values depending
5784 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5787 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5788 the handshake is continued after ssl_verify_cert_chain();
5789 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5790 can lead to 'unexplainable' connection aborts later.
5791 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5793 *) Major EVP API cipher revision.
5794 Add hooks for extra EVP features. This allows various cipher
5795 parameters to be set in the EVP interface. Support added for variable
5796 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5797 setting of RC2 and RC5 parameters.
5799 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5802 Remove lots of duplicated code from the EVP library. For example *every*
5803 cipher init() function handles the 'iv' in the same way according to the
5804 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5805 for CFB and OFB modes they zero ctx->num.
5807 New functionality allows removal of S/MIME code RC2 hack.
5809 Most of the routines have the same form and so can be declared in terms
5812 By shifting this to the top level EVP_CipherInit() it can be removed from
5813 all individual ciphers. If the cipher wants to handle IVs or keys
5814 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5817 Change lots of functions like EVP_EncryptUpdate() to now return a
5818 value: although software versions of the algorithms cannot fail
5819 any installed hardware versions can.
5822 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5823 this option is set, tolerate broken clients that send the negotiated
5824 protocol version number instead of the requested protocol version
5828 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5829 i.e. non-zero for export ciphersuites, zero otherwise.
5830 Previous versions had this flag inverted, inconsistent with
5831 rsa_tmp_cb (..._TMP_RSA_CB).
5832 [Bodo Moeller; problem reported by Amit Chopra]
5834 *) Add missing DSA library text string. Work around for some IIS
5835 key files with invalid SEQUENCE encoding.
5838 *) Add a document (doc/standards.txt) that list all kinds of standards
5839 and so on that are implemented in OpenSSL.
5842 *) Enhance c_rehash script. Old version would mishandle certificates
5843 with the same subject name hash and wouldn't handle CRLs at all.
5844 Added -fingerprint option to crl utility, to support new c_rehash
5848 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5851 *) Fix for SSL server purpose checking. Server checking was
5852 rejecting certificates which had extended key usage present
5853 but no ssl client purpose.
5854 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5856 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5857 is a little unclear about how a blank password is handled.
5858 Since the password in encoded as a BMPString with terminating
5859 double NULL a zero length password would end up as just the
5860 double NULL. However no password at all is different and is
5861 handled differently in the PKCS#12 key generation code. NS
5862 treats a blank password as zero length. MSIE treats it as no
5863 password on export: but it will try both on import. We now do
5864 the same: PKCS12_parse() tries zero length and no password if
5865 the password is set to "" or NULL (NULL is now a valid password:
5866 it wasn't before) as does the pkcs12 application.
5869 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5870 perror when PEM_read_bio_X509_REQ fails, the error message must
5871 be obtained from the error queue.
5874 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5875 it in ERR_remove_state if appropriate, and change ERR_get_state
5876 accordingly to avoid race conditions (this is necessary because
5877 thread_hash is no longer constant once set).
5880 *) Bugfix for linux-elf makefile.one.
5883 *) RSA_get_default_method() will now cause a default
5884 RSA_METHOD to be chosen if one doesn't exist already.
5885 Previously this was only set during a call to RSA_new()
5886 or RSA_new_method(NULL) meaning it was possible for
5887 RSA_get_default_method() to return NULL.
5890 *) Added native name translation to the existing DSO code
5891 that will convert (if the flag to do so is set) filenames
5892 that are sufficiently small and have no path information
5893 into a canonical native form. Eg. "blah" converted to
5894 "libblah.so" or "blah.dll" etc.
5897 *) New function ERR_error_string_n(e, buf, len) which is like
5898 ERR_error_string(e, buf), but writes at most 'len' bytes
5899 including the 0 terminator. For ERR_error_string_n, 'buf'
5901 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5903 *) CONF library reworked to become more general. A new CONF
5904 configuration file reader "class" is implemented as well as a
5905 new functions (NCONF_*, for "New CONF") to handle it. The now
5906 old CONF_* functions are still there, but are reimplemented to
5907 work in terms of the new functions. Also, a set of functions
5908 to handle the internal storage of the configuration data is
5909 provided to make it easier to write new configuration file
5910 reader "classes" (I can definitely see something reading a
5911 configuration file in XML format, for example), called _CONF_*,
5912 or "the configuration storage API"...
5914 The new configuration file reading functions are:
5916 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5917 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5919 NCONF_default, NCONF_WIN32
5921 NCONF_dump_fp, NCONF_dump_bio
5923 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5924 NCONF_new creates a new CONF object. This works in the same way
5925 as other interfaces in OpenSSL, like the BIO interface.
5926 NCONF_dump_* dump the internal storage of the configuration file,
5927 which is useful for debugging. All other functions take the same
5928 arguments as the old CONF_* functions wth the exception of the
5929 first that must be a `CONF *' instead of a `LHASH *'.
5931 To make it easer to use the new classes with the old CONF_* functions,
5932 the function CONF_set_default_method is provided.
5935 *) Add '-tls1' option to 'openssl ciphers', which was already
5936 mentioned in the documentation but had not been implemented.
5937 (This option is not yet really useful because even the additional
5938 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5941 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5942 OpenSSL-based applications) load shared libraries and bind to
5943 them in a portable way.
5944 [Geoff Thorpe, with contributions from Richard Levitte]
5946 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5948 *) Make sure _lrotl and _lrotr are only used with MSVC.
5950 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5951 (the default implementation of RAND_status).
5953 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5954 to '-clrext' (= clear extensions), as intended and documented.
5955 [Bodo Moeller; inconsistency pointed out by Michael Attili
5958 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5959 was larger than the MD block size.
5960 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5962 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5963 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5964 using the passed key: if the passed key was a private key the result
5965 of X509_print(), for example, would be to print out all the private key
5969 *) des_quad_cksum() byte order bug fix.
5970 [Ulf Möller, using the problem description in krb4-0.9.7, where
5971 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5973 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5975 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5977 *) For easily testing in shell scripts whether some command
5978 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5979 returns with exit code 0 iff no command of the given name is available.
5980 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5981 the output goes to stdout and nothing is printed to stderr.
5982 Additional arguments are always ignored.
5984 Since for each cipher there is a command of the same name,
5985 the 'no-cipher' compilation switches can be tested this way.
5987 ('openssl no-XXX' is not able to detect pseudo-commands such
5988 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5991 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5994 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5995 is set; it will be thrown away anyway because each handshake creates
5997 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5998 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5999 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6000 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6003 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6004 'Q' and 'R' lose their special meanings (quit/renegotiate).
6005 This is part of what -quiet does; unlike -quiet, -ign_eof
6006 does not suppress any output.
6009 *) Add compatibility options to the purpose and trust code. The
6010 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6011 accepts a certificate or CA, this was the previous behaviour,
6012 with all the associated security issues.
6014 X509_TRUST_COMPAT is the old trust behaviour: only and
6015 automatically trust self signed roots in certificate store. A
6016 new trust setting X509_TRUST_DEFAULT is used to specify that
6017 a purpose has no associated trust setting and it should instead
6018 use the value in the default purpose.
6021 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6022 and fix a memory leak.
6025 *) In util/mkerr.pl (which implements 'make errors'), preserve
6026 reason strings from the previous version of the .c file, as
6027 the default to have only downcase letters (and digits) in
6028 automatically generated reasons codes is not always appropriate.
6031 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6032 using strerror. Previously, ERR_reason_error_string() returned
6033 library names as reason strings for SYSerr; but SYSerr is a special
6034 case where small numbers are errno values, not library numbers.
6037 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6038 converts DSA parameters into DH parameters. (When creating parameters,
6039 DSA_generate_parameters is used.)
6042 *) Include 'length' (recommended exponent length) in C code generated
6043 by 'openssl dhparam -C'.
6046 *) The second argument to set_label in perlasm was already being used
6047 so couldn't be used as a "file scope" flag. Moved to third argument
6051 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6052 instead of RAND_bytes for encryption IVs and salts.
6055 *) Include RAND_status() into RAND_METHOD instead of implementing
6056 it only for md_rand.c Otherwise replacing the PRNG by calling
6057 RAND_set_rand_method would be impossible.
6060 *) Don't let DSA_generate_key() enter an infinite loop if the random
6061 number generation fails.
6064 *) New 'rand' application for creating pseudo-random output.
6067 *) Added configuration support for Linux/IA64
6068 [Rolf Haberrecker <rolf@suse.de>]
6070 *) Assembler module support for Mingw32.
6073 *) Shared library support for HPUX (in shlib/).
6074 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6076 *) Shared library support for Solaris gcc.
6077 [Lutz Behnke <behnke@trustcenter.de>]
6079 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6081 *) PKCS7_encrypt() was adding text MIME headers twice because they
6082 were added manually and by SMIME_crlf_copy().
6085 *) In bntest.c don't call BN_rand with zero bits argument.
6086 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6088 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6089 case was implemented. This caused BN_div_recp() to fail occasionally.
6092 *) Add an optional second argument to the set_label() in the perl
6093 assembly language builder. If this argument exists and is set
6094 to 1 it signals that the assembler should use a symbol whose
6095 scope is the entire file, not just the current function. This
6096 is needed with MASM which uses the format label:: for this scope.
6097 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6099 *) Change the ASN1 types so they are typedefs by default. Before
6100 almost all types were #define'd to ASN1_STRING which was causing
6101 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6105 *) Change names of new functions to the new get1/get0 naming
6106 convention: After 'get1', the caller owns a reference count
6107 and has to call ..._free; 'get0' returns a pointer to some
6108 data structure without incrementing reference counters.
6109 (Some of the existing 'get' functions increment a reference
6110 counter, some don't.)
6111 Similarly, 'set1' and 'add1' functions increase reference
6112 counters or duplicate objects.
6115 *) Allow for the possibility of temp RSA key generation failure:
6116 the code used to assume it always worked and crashed on failure.
6119 *) Fix potential buffer overrun problem in BIO_printf().
6120 [Ulf Möller, using public domain code by Patrick Powell; problem
6121 pointed out by David Sacerdote <das33@cornell.edu>]
6123 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6124 RAND_egd() and RAND_status(). In the command line application,
6125 the EGD socket can be specified like a seed file using RANDFILE
6129 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6130 Some CAs (e.g. Verisign) distribute certificates in this form.
6133 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6134 list to exclude them. This means that no special compilation option
6135 is needed to use anonymous DH: it just needs to be included in the
6139 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6140 EVP_MD_type. The old functionality is available in a new macro called
6141 EVP_MD_md(). Change code that uses it and update docs.
6144 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6145 where the 'void *' argument is replaced by a function pointer argument.
6146 Previously 'void *' was abused to point to functions, which works on
6147 many platforms, but is not correct. As these functions are usually
6148 called by macros defined in OpenSSL header files, most source code
6149 should work without changes.
6152 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6153 sections with information on -D... compiler switches used for
6154 compiling the library so that applications can see them. To enable
6155 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6156 must be defined. E.g.,
6157 #define OPENSSL_ALGORITHM_DEFINES
6158 #include <openssl/opensslconf.h>
6159 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6160 [Richard Levitte, Ulf and Bodo Möller]
6162 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6166 *) Change the 'other' type in certificate aux info to a STACK_OF
6167 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6168 the required ASN1 format: arbitrary types determined by an OID.
6171 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6172 argument to 'req'. This is not because the function is newer or
6173 better than others it just uses the work 'NEW' in the certificate
6174 request header lines. Some software needs this.
6177 *) Reorganise password command line arguments: now passwords can be
6178 obtained from various sources. Delete the PEM_cb function and make
6179 it the default behaviour: i.e. if the callback is NULL and the
6180 usrdata argument is not NULL interpret it as a null terminated pass
6181 phrase. If usrdata and the callback are NULL then the pass phrase
6182 is prompted for as usual.
6185 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6186 the support is automatically enabled. The resulting binaries will
6187 autodetect the card and use it if present.
6188 [Ben Laurie and Compaq Inc.]
6190 *) Work around for Netscape hang bug. This sends certificate request
6191 and server done in one record. Since this is perfectly legal in the
6192 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6193 the bugs/SSLv3 entry for more info.
6196 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6199 *) Add -rand argument to smime and pkcs12 applications and read/write
6203 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6206 *) Add command line password options to the remaining applications.
6209 *) Bug fix for BN_div_recp() for numerators with an even number of
6213 *) More tests in bntest.c, and changed test_bn output.
6216 *) ./config recognizes MacOS X now.
6219 *) Bug fix for BN_div() when the first words of num and divsor are
6220 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6223 *) Add support for various broken PKCS#8 formats, and command line
6224 options to produce them.
6227 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6228 get temporary BIGNUMs from a BN_CTX.
6231 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6235 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6236 include a #define from the old name to the new. The original intent
6237 was that statically linked binaries could for example just call
6238 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6239 link with digests. This never worked becayse SSLeay_add_all_digests()
6240 and SSLeay_add_all_ciphers() were in the same source file so calling
6241 one would link with the other. They are now in separate source files.
6244 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6247 *) Use a less unusual form of the Miller-Rabin primality test (it used
6248 a binary algorithm for exponentiation integrated into the Miller-Rabin
6249 loop, our standard modexp algorithms are faster).
6252 *) Support for the EBCDIC character set completed.
6253 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6255 *) Source code cleanups: use const where appropriate, eliminate casts,
6256 use void * instead of char * in lhash.
6259 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6260 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6261 this the server could overwrite ephemeral keys that the client
6265 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6266 using 50 iterations of the Rabin-Miller test.
6268 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6269 iterations of the Rabin-Miller test as required by the appendix
6270 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6271 As BN_is_prime_fasttest includes trial division, DSA parameter
6272 generation becomes much faster.
6274 This implies a change for the callback functions in DSA_is_prime
6275 and DSA_generate_parameters: The callback function is called once
6276 for each positive witness in the Rabin-Miller test, not just
6277 occasionally in the inner loop; and the parameters to the
6278 callback function now provide an iteration count for the outer
6279 loop rather than for the current invocation of the inner loop.
6280 DSA_generate_parameters additionally can call the callback
6281 function with an 'iteration count' of -1, meaning that a
6282 candidate has passed the trial division test (when q is generated
6283 from an application-provided seed, trial division is skipped).
6286 *) New function BN_is_prime_fasttest that optionally does trial
6287 division before starting the Rabin-Miller test and has
6288 an additional BN_CTX * argument (whereas BN_is_prime always
6289 has to allocate at least one BN_CTX).
6290 'callback(1, -1, cb_arg)' is called when a number has passed the
6291 trial division stage.
6294 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6298 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6301 *) New function BN_pseudo_rand().
6304 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6305 bignum version of BN_from_montgomery() with the working code from
6306 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6310 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6311 made it impossible to use the same SSL_SESSION data structure in
6312 SSL2 clients in multiple threads.
6315 *) The return value of RAND_load_file() no longer counts bytes obtained
6316 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6317 to seed the PRNG (previously an explicit byte count was required).
6318 [Ulf Möller, Bodo Möller]
6320 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6321 used (char *) instead of (void *) and had casts all over the place.
6324 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6327 *) Retain source code compatibility for BN_prime_checks macro:
6328 BN_is_prime(..., BN_prime_checks, ...) now uses
6329 BN_prime_checks_for_size to determine the appropriate number of
6330 Rabin-Miller iterations.
6333 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6334 DH_CHECK_P_NOT_SAFE_PRIME.
6335 (Check if this is true? OpenPGP calls them "strong".)
6338 *) Merge the functionality of "dh" and "gendh" programs into a new program
6339 "dhparam". The old programs are retained for now but will handle DH keys
6340 (instead of parameters) in future.
6343 *) Make the ciphers, s_server and s_client programs check the return values
6344 when a new cipher list is set.
6347 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6348 ciphers. Before when the 56bit ciphers were enabled the sorting was
6351 The syntax for the cipher sorting has been extended to support sorting by
6352 cipher-strength (using the strength_bits hard coded in the tables).
6353 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6355 Fix a bug in the cipher-command parser: when supplying a cipher command
6356 string with an "undefined" symbol (neither command nor alphanumeric
6357 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6358 an error is flagged.
6360 Due to the strength-sorting extension, the code of the
6361 ssl_create_cipher_list() function was completely rearranged. I hope that
6362 the readability was also increased :-)
6363 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6365 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6366 for the first serial number and places 2 in the serial number file. This
6367 avoids problems when the root CA is created with serial number zero and
6368 the first user certificate has the same issuer name and serial number
6372 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6373 the new code. Add documentation for this stuff.
6376 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6377 X509_*() to X509at_*() on the grounds that they don't handle X509
6378 structures and behave in an analagous way to the X509v3 functions:
6379 they shouldn't be called directly but wrapper functions should be used
6382 So we also now have some wrapper functions that call the X509at functions
6383 when passed certificate requests. (TO DO: similar things can be done with
6384 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6385 things. Some of these need some d2i or i2d and print functionality
6386 because they handle more complex structures.)
6389 *) Add missing #ifndefs that caused missing symbols when building libssl
6390 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6391 NO_RSA in ssl/s2*.c.
6392 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6394 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6395 has a return value which indicates the quality of the random data
6396 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6397 error queue. New function RAND_pseudo_bytes() generates output that is
6398 guaranteed to be unique but not unpredictable. RAND_add is like
6399 RAND_seed, but takes an extra argument for an entropy estimate
6400 (RAND_seed always assumes full entropy).
6403 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6404 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6405 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6406 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6407 false-positive rate of at most 2^-80 for random input.
6410 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6413 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6414 in the 0.9.5 release), this returns the chain
6415 from an X509_CTX structure with a dup of the stack and all
6416 the X509 reference counts upped: so the stack will exist
6417 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6420 Also make SSL_SESSION_print() print out the verify return
6424 *) Add manpage for the pkcs12 command. Also change the default
6425 behaviour so MAC iteration counts are used unless the new
6426 -nomaciter option is used. This improves file security and
6427 only older versions of MSIE (4.0 for example) need it.
6430 *) Honor the no-xxx Configure options when creating .DEF files.
6433 *) Add PKCS#10 attributes to field table: challengePassword,
6434 unstructuredName and unstructuredAddress. These are taken from
6435 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6436 international characters are used.
6438 More changes to X509_ATTRIBUTE code: allow the setting of types
6439 based on strings. Remove the 'loc' parameter when adding
6440 attributes because these will be a SET OF encoding which is sorted
6444 *) Initial changes to the 'req' utility to allow request generation
6445 automation. This will allow an application to just generate a template
6446 file containing all the field values and have req construct the
6449 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6450 used all over the place including certificate requests and PKCS#7
6451 structures. They are currently handled manually where necessary with
6452 some primitive wrappers for PKCS#7. The new functions behave in a
6453 manner analogous to the X509 extension functions: they allow
6454 attributes to be looked up by NID and added.
6456 Later something similar to the X509V3 code would be desirable to
6457 automatically handle the encoding, decoding and printing of the
6458 more complex types. The string types like challengePassword can
6459 be handled by the string table functions.
6461 Also modified the multi byte string table handling. Now there is
6462 a 'global mask' which masks out certain types. The table itself
6463 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6464 is useful when for example there is only one permissible type
6465 (as in countryName) and using the mask might result in no valid
6469 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6470 SSL_get_peer_finished to allow applications to obtain the latest
6471 Finished messages sent to the peer or expected from the peer,
6472 respectively. (SSL_get_peer_finished is usually the Finished message
6473 actually received from the peer, otherwise the protocol will be aborted.)
6475 As the Finished message are message digests of the complete handshake
6476 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6477 be used for external authentication procedures when the authentication
6478 provided by SSL/TLS is not desired or is not enough.
6481 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6482 the host supports BWX extension and if Compaq C is present on the
6483 $PATH. Just exploiting of the BWX extension results in 20-30%
6484 performance kick for some algorithms, e.g. DES and RC4 to mention
6485 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6489 *) Add support for MS "fast SGC". This is arguably a violation of the
6490 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6491 weak crypto and after checking the certificate is SGC a second one
6492 with strong crypto. MS SGC stops the first handshake after receiving
6493 the server certificate message and sends a second client hello. Since
6494 a server will typically do all the time consuming operations before
6495 expecting any further messages from the client (server key exchange
6496 is the most expensive) there is little difference between the two.
6498 To get OpenSSL to support MS SGC we have to permit a second client
6499 hello message after we have sent server done. In addition we have to
6500 reset the MAC if we do get this second client hello.
6503 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6504 if a DER encoded private key is RSA or DSA traditional format. Changed
6505 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6506 format DER encoded private key. Newer code should use PKCS#8 format which
6507 has the key type encoded in the ASN1 structure. Added DER private key
6508 support to pkcs8 application.
6511 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6512 ciphersuites has been selected (as required by the SSL 3/TLS 1
6513 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6514 is set, we interpret this as a request to violate the specification
6515 (the worst that can happen is a handshake failure, and 'correct'
6516 behaviour would result in a handshake failure anyway).
6519 *) In SSL_CTX_add_session, take into account that there might be multiple
6520 SSL_SESSION structures with the same session ID (e.g. when two threads
6521 concurrently obtain them from an external cache).
6522 The internal cache can handle only one SSL_SESSION with a given ID,
6523 so if there's a conflict, we now throw out the old one to achieve
6527 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6528 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6529 some routines that use cipher OIDs: some ciphers do not have OIDs
6530 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6534 *) Simplify the trust setting structure and code. Now we just have
6535 two sequences of OIDs for trusted and rejected settings. These will
6536 typically have values the same as the extended key usage extension
6537 and any application specific purposes.
6539 The trust checking code now has a default behaviour: it will just
6540 check for an object with the same NID as the passed id. Functions can
6541 be provided to override either the default behaviour or the behaviour
6542 for a given id. SSL client, server and email already have functions
6543 in place for compatibility: they check the NID and also return "trusted"
6544 if the certificate is self signed.
6547 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6548 traditional format into an EVP_PKEY structure.
6551 *) Add a password callback function PEM_cb() which either prompts for
6552 a password if usr_data is NULL or otherwise assumes it is a null
6553 terminated password. Allow passwords to be passed on command line
6554 environment or config files in a few more utilities.
6557 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6558 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6559 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6560 Update documentation.
6563 *) Support for ASN1 "NULL" type. This could be handled before by using
6564 ASN1_TYPE but there wasn't any function that would try to read a NULL
6565 and produce an error if it couldn't. For compatibility we also have
6566 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6567 don't allocate anything because they don't need to.
6570 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6572 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6574 *) Rebuild of the memory allocation routines used by OpenSSL code and
6575 possibly others as well. The purpose is to make an interface that
6576 provide hooks so anyone can build a separate set of allocation and
6577 deallocation routines to be used by OpenSSL, for example memory
6578 pool implementations, or something else, which was previously hard
6579 since Malloc(), Realloc() and Free() were defined as macros having
6580 the values malloc, realloc and free, respectively (except for Win32
6581 compilations). The same is provided for memory debugging code.
6582 OpenSSL already comes with functionality to find memory leaks, but
6583 this gives people a chance to debug other memory problems.
6585 With these changes, a new set of functions and macros have appeared:
6587 CRYPTO_set_mem_debug_functions() [F]
6588 CRYPTO_get_mem_debug_functions() [F]
6589 CRYPTO_dbg_set_options() [F]
6590 CRYPTO_dbg_get_options() [F]
6591 CRYPTO_malloc_debug_init() [M]
6593 The memory debug functions are NULL by default, unless the library
6594 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6595 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6596 gives the standard debugging functions that come with OpenSSL) or
6597 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6598 provided by the library user) must be used. When the standard
6599 debugging functions are used, CRYPTO_dbg_set_options can be used to
6600 request additional information:
6601 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6602 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6604 Also, things like CRYPTO_set_mem_functions will always give the
6605 expected result (the new set of functions is used for allocation
6606 and deallocation) at all times, regardless of platform and compiler
6609 To finish it up, some functions that were never use in any other
6610 way than through macros have a new API and new semantic:
6613 CRYPTO_dbg_realloc()
6616 All macros of value have retained their old syntax.
6617 [Richard Levitte and Bodo Moeller]
6619 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6620 ordering of SMIMECapabilities wasn't in "strength order" and there
6621 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6625 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6626 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6627 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6629 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6630 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6631 functionality to handle multipart/signed properly) and a utility
6632 called 'smime' to call all this stuff. This is based on code I
6633 originally wrote for Celo who have kindly allowed it to be
6634 included in OpenSSL.
6637 *) Add variants des_set_key_checked and des_set_key_unchecked of
6638 des_set_key (aka des_key_sched). Global variable des_check_key
6639 decides which of these is called by des_set_key; this way
6640 des_check_key behaves as it always did, but applications and
6641 the library itself, which was buggy for des_check_key == 1,
6642 have a cleaner way to pick the version they need.
6645 *) New function PKCS12_newpass() which changes the password of a
6649 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6650 dynamic mix. In both cases the ids can be used as an index into the
6651 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6652 functions so they accept a list of the field values and the
6653 application doesn't need to directly manipulate the X509_TRUST
6657 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6661 *) Modify the way the V3 extension code looks up extensions. This now
6662 works in a similar way to the object code: we have some "standard"
6663 extensions in a static table which is searched with OBJ_bsearch()
6664 and the application can add dynamic ones if needed. The file
6665 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6666 updated whenever a new extension is added to the core code and kept
6667 in ext_nid order. There is a simple program 'tabtest.c' which checks
6668 this. New extensions are not added too often so this file can readily
6669 be maintained manually.
6671 There are two big advantages in doing things this way. The extensions
6672 can be looked up immediately and no longer need to be "added" using
6673 X509V3_add_standard_extensions(): this function now does nothing.
6674 [Side note: I get *lots* of email saying the extension code doesn't
6675 work because people forget to call this function]
6676 Also no dynamic allocation is done unless new extensions are added:
6677 so if we don't add custom extensions there is no need to call
6678 X509V3_EXT_cleanup().
6681 *) Modify enc utility's salting as follows: make salting the default. Add a
6682 magic header, so unsalted files fail gracefully instead of just decrypting
6683 to garbage. This is because not salting is a big security hole, so people
6684 should be discouraged from doing it.
6687 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6688 digest to be passed on the command line but it only used this
6689 parameter when signing a certificate. Modified so all relevant
6690 operations are affected by the digest parameter including the
6691 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6692 DSA key was used because it didn't fix the digest.
6695 *) Initial certificate chain verify code. Currently tests the untrusted
6696 certificates for consistency with the verify purpose (which is set
6697 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6699 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6700 this is because it will reject chains with invalid extensions whereas
6701 every previous version of OpenSSL and SSLeay made no checks at all.
6703 Trust code: checks the root CA for the relevant trust settings. Trust
6704 settings have an initial value consistent with the verify purpose: e.g.
6705 if the verify purpose is for SSL client use it expects the CA to be
6706 trusted for SSL client use. However the default value can be changed to
6707 permit custom trust settings: one example of this would be to only trust
6708 certificates from a specific "secure" set of CAs.
6710 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6711 which should be used for version portability: especially since the
6712 verify structure is likely to change more often now.
6714 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6715 to set them. If not set then assume SSL clients will verify SSL servers
6718 Two new options to the verify program: -untrusted allows a set of
6719 untrusted certificates to be passed in and -purpose which sets the
6720 intended purpose of the certificate. If a purpose is set then the
6721 new chain verify code is used to check extension consistency.
6724 *) Support for the authority information access extension.
6727 *) Modify RSA and DSA PEM read routines to transparently handle
6728 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6729 public keys in a format compatible with certificate
6730 SubjectPublicKeyInfo structures. Unfortunately there were already
6731 functions called *_PublicKey_* which used various odd formats so
6732 these are retained for compatibility: however the DSA variants were
6733 never in a public release so they have been deleted. Changed dsa/rsa
6734 utilities to handle the new format: note no releases ever handled public
6735 keys so we should be OK.
6737 The primary motivation for this change is to avoid the same fiasco
6738 that dogs private keys: there are several incompatible private key
6739 formats some of which are standard and some OpenSSL specific and
6740 require various evil hacks to allow partial transparent handling and
6741 even then it doesn't work with DER formats. Given the option anything
6742 other than PKCS#8 should be dumped: but the other formats have to
6743 stay in the name of compatibility.
6745 With public keys and the benefit of hindsight one standard format
6746 is used which works with EVP_PKEY, RSA or DSA structures: though
6747 it clearly returns an error if you try to read the wrong kind of key.
6749 Added a -pubkey option to the 'x509' utility to output the public key.
6750 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6751 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6752 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6753 that do the same as the EVP_PKEY_assign_*() except they up the
6754 reference count of the added key (they don't "swallow" the
6758 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6759 CRLs would fail if the file contained no certificates or no CRLs:
6760 added a new function to read in both types and return the number
6761 read: this means that if none are read it will be an error. The
6762 DER versions of the certificate and CRL reader would always fail
6763 because it isn't possible to mix certificates and CRLs in DER format
6764 without choking one or the other routine. Changed this to just read
6765 a certificate: this is the best we can do. Also modified the code
6766 in apps/verify.c to take notice of return codes: it was previously
6767 attempting to read in certificates from NULL pointers and ignoring
6768 any errors: this is one reason why the cert and CRL reader seemed
6769 to work. It doesn't check return codes from the default certificate
6770 routines: these may well fail if the certificates aren't installed.
6773 *) Code to support otherName option in GeneralName.
6776 *) First update to verify code. Change the verify utility
6777 so it warns if it is passed a self signed certificate:
6778 for consistency with the normal behaviour. X509_verify
6779 has been modified to it will now verify a self signed
6780 certificate if *exactly* the same certificate appears
6781 in the store: it was previously impossible to trust a
6782 single self signed certificate. This means that:
6783 openssl verify ss.pem
6784 now gives a warning about a self signed certificate but
6785 openssl verify -CAfile ss.pem ss.pem
6789 *) For servers, store verify_result in SSL_SESSION data structure
6790 (and add it to external session representation).
6791 This is needed when client certificate verifications fails,
6792 but an application-provided verification callback (set by
6793 SSL_CTX_set_cert_verify_callback) allows accepting the session
6794 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6795 but returns 1): When the session is reused, we have to set
6796 ssl->verify_result to the appropriate error code to avoid
6798 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6800 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6801 case in PKCS7_dataInit() where the signed PKCS7 structure
6802 didn't contain any existing data because it was being created.
6803 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6805 *) Add a salt to the key derivation routines in enc.c. This
6806 forms the first 8 bytes of the encrypted file. Also add a
6807 -S option to allow a salt to be input on the command line.
6810 *) New function X509_cmp(). Oddly enough there wasn't a function
6811 to compare two certificates. We do this by working out the SHA1
6812 hash and comparing that. X509_cmp() will be needed by the trust
6816 *) SSL_get1_session() is like SSL_get_session(), but increments
6817 the reference count in the SSL_SESSION returned.
6818 [Geoff Thorpe <geoff@eu.c2.net>]
6820 *) Fix for 'req': it was adding a null to request attributes.
6821 Also change the X509_LOOKUP and X509_INFO code to handle
6822 certificate auxiliary information.
6825 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6829 *) Add the possibility to add extra information to the memory leak
6830 detecting output, to form tracebacks, showing from where each
6831 allocation was originated: CRYPTO_push_info("constant string") adds
6832 the string plus current file name and line number to a per-thread
6833 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6834 is like calling CYRPTO_pop_info() until the stack is empty.
6835 Also updated memory leak detection code to be multi-thread-safe.
6838 *) Add options -text and -noout to pkcs7 utility and delete the
6839 encryption options which never did anything. Update docs.
6842 *) Add options to some of the utilities to allow the pass phrase
6843 to be included on either the command line (not recommended on
6844 OSes like Unix) or read from the environment. Update the
6845 manpages and fix a few bugs.
6848 *) Add a few manpages for some of the openssl commands.
6851 *) Fix the -revoke option in ca. It was freeing up memory twice,
6852 leaking and not finding already revoked certificates.
6855 *) Extensive changes to support certificate auxiliary information.
6856 This involves the use of X509_CERT_AUX structure and X509_AUX
6857 functions. An X509_AUX function such as PEM_read_X509_AUX()
6858 can still read in a certificate file in the usual way but it
6859 will also read in any additional "auxiliary information". By
6860 doing things this way a fair degree of compatibility can be
6861 retained: existing certificates can have this information added
6862 using the new 'x509' options.
6864 Current auxiliary information includes an "alias" and some trust
6865 settings. The trust settings will ultimately be used in enhanced
6866 certificate chain verification routines: currently a certificate
6867 can only be trusted if it is self signed and then it is trusted
6871 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6872 The problem was that one of the replacement routines had not been working
6873 since SSLeay releases. For now the offending routine has been replaced
6874 with non-optimised assembler. Even so, this now gives around 95%
6875 performance improvement for 1024 bit RSA signs.
6878 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6879 handling. Most clients have the effective key size in bits equal to
6880 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6881 A few however don't do this and instead use the size of the decrypted key
6882 to determine the RC2 key length and the AlgorithmIdentifier to determine
6883 the effective key length. In this case the effective key length can still
6884 be 40 bits but the key length can be 168 bits for example. This is fixed
6885 by manually forcing an RC2 key into the EVP_PKEY structure because the
6886 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6887 the key length and effective key length are equal.
6890 *) Add a bunch of functions that should simplify the creation of
6891 X509_NAME structures. Now you should be able to do:
6892 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6893 and have it automatically work out the correct field type and fill in
6894 the structures. The more adventurous can try:
6895 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6896 and it will (hopefully) work out the correct multibyte encoding.
6899 *) Change the 'req' utility to use the new field handling and multibyte
6900 copy routines. Before the DN field creation was handled in an ad hoc
6901 way in req, ca, and x509 which was rather broken and didn't support
6902 BMPStrings or UTF8Strings. Since some software doesn't implement
6903 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6904 using the dirstring_type option. See the new comment in the default
6905 openssl.cnf for more info.
6908 *) Make crypto/rand/md_rand.c more robust:
6909 - Assure unique random numbers after fork().
6910 - Make sure that concurrent threads access the global counter and
6911 md serializably so that we never lose entropy in them
6912 or use exactly the same state in multiple threads.
6913 Access to the large state is not always serializable because
6914 the additional locking could be a performance killer, and
6915 md should be large enough anyway.
6918 *) New file apps/app_rand.c with commonly needed functionality
6919 for handling the random seed file.
6921 Use the random seed file in some applications that previously did not:
6923 dsaparam -genkey (which also ignored its '-rand' option),
6926 x509 (when signing).
6927 Except on systems with /dev/urandom, it is crucial to have a random
6928 seed file at least for key creation, DSA signing, and for DH exchanges;
6929 for RSA signatures we could do without one.
6931 gendh and gendsa (unlike genrsa) used to read only the first byte
6932 of each file listed in the '-rand' option. The function as previously
6933 found in genrsa is now in app_rand.c and is used by all programs
6934 that support '-rand'.
6937 *) In RAND_write_file, use mode 0600 for creating files;
6938 don't just chmod when it may be too late.
6941 *) Report an error from X509_STORE_load_locations
6942 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6945 *) New function ASN1_mbstring_copy() this copies a string in either
6946 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6947 into an ASN1_STRING type. A mask of permissible types is passed
6948 and it chooses the "minimal" type to use or an error if not type
6952 *) Add function equivalents to the various macros in asn1.h. The old
6953 macros are retained with an M_ prefix. Code inside the library can
6954 use the M_ macros. External code (including the openssl utility)
6955 should *NOT* in order to be "shared library friendly".
6958 *) Add various functions that can check a certificate's extensions
6959 to see if it usable for various purposes such as SSL client,
6960 server or S/MIME and CAs of these types. This is currently
6961 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6962 verification. Also added a -purpose flag to x509 utility to
6963 print out all the purposes.
6966 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6970 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6971 for, obtain and decode and extension and obtain its critical flag.
6972 This allows all the necessary extension code to be handled in a
6973 single function call.
6976 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6977 platforms. See crypto/rc4/rc4_enc.c for further details.
6980 *) New -noout option to asn1parse. This causes no output to be produced
6981 its main use is when combined with -strparse and -out to extract data
6982 from a file (which may not be in ASN.1 format).
6985 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6986 when producing the local key id.
6987 [Richard Levitte <levitte@stacken.kth.se>]
6989 *) New option -dhparam in s_server. This allows a DH parameter file to be
6990 stated explicitly. If it is not stated then it tries the first server
6991 certificate file. The previous behaviour hard coded the filename
6995 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6996 a public key to be input or output. For example:
6997 openssl rsa -in key.pem -pubout -out pubkey.pem
6998 Also added necessary DSA public key functions to handle this.
7001 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7002 in the message. This was handled by allowing
7003 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7004 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7006 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7007 to the end of the strings whereas this didn't. This would cause problems
7008 if strings read with d2i_ASN1_bytes() were later modified.
7009 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7011 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7012 data and it contains EOF it will end up returning an error. This is
7013 caused by input 46 bytes long. The cause is due to the way base64
7014 BIOs find the start of base64 encoded data. They do this by trying a
7015 trial decode on each line until they find one that works. When they
7016 do a flag is set and it starts again knowing it can pass all the
7017 data directly through the decoder. Unfortunately it doesn't reset
7018 the context it uses. This means that if EOF is reached an attempt
7019 is made to pass two EOFs through the context and this causes the
7020 resulting error. This can also cause other problems as well. As is
7021 usual with these problems it takes *ages* to find and the fix is
7022 trivial: move one line.
7023 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7025 *) Ugly workaround to get s_client and s_server working under Windows. The
7026 old code wouldn't work because it needed to select() on sockets and the
7027 tty (for keypresses and to see if data could be written). Win32 only
7028 supports select() on sockets so we select() with a 1s timeout on the
7029 sockets and then see if any characters are waiting to be read, if none
7030 are present then we retry, we also assume we can always write data to
7031 the tty. This isn't nice because the code then blocks until we've
7032 received a complete line of data and it is effectively polling the
7033 keyboard at 1s intervals: however it's quite a bit better than not
7034 working at all :-) A dedicated Windows application might handle this
7035 with an event loop for example.
7038 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7039 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7040 will be called when RSA_sign() and RSA_verify() are used. This is useful
7041 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7042 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7043 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7044 This necessitated the support of an extra signature type NID_md5_sha1
7045 for SSL signatures and modifications to the SSL library to use it instead
7046 of calling RSA_public_decrypt() and RSA_private_encrypt().
7049 *) Add new -verify -CAfile and -CApath options to the crl program, these
7050 will lookup a CRL issuers certificate and verify the signature in a
7051 similar way to the verify program. Tidy up the crl program so it
7052 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7053 less strict. It will now permit CRL extensions even if it is not
7054 a V2 CRL: this will allow it to tolerate some broken CRLs.
7057 *) Initialize all non-automatic variables each time one of the openssl
7058 sub-programs is started (this is necessary as they may be started
7059 multiple times from the "OpenSSL>" prompt).
7060 [Lennart Bang, Bodo Moeller]
7062 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7063 removing all other RSA functionality (this is what NO_RSA does). This
7064 is so (for example) those in the US can disable those operations covered
7065 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7069 *) Non-copying interface to BIO pairs.
7070 (still largely untested)
7073 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7074 ASCII string. This was handled independently in various places before.
7077 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7078 UTF8 strings a character at a time.
7081 *) Use client_version from client hello to select the protocol
7082 (s23_srvr.c) and for RSA client key exchange verification
7083 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7086 *) Add various utility functions to handle SPKACs, these were previously
7087 handled by poking round in the structure internals. Added new function
7088 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7089 print, verify and generate SPKACs. Based on an original idea from
7090 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7093 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7096 *) Allow the config file extension section to be overwritten on the
7097 command line. Based on an original idea from Massimiliano Pala
7098 <madwolf@comune.modena.it>. The new option is called -extensions
7099 and can be applied to ca, req and x509. Also -reqexts to override
7100 the request extensions in req and -crlexts to override the crl extensions
7104 *) Add new feature to the SPKAC handling in ca. Now you can include
7105 the same field multiple times by preceding it by "XXXX." for example:
7108 this is the same syntax as used in the req config file.
7111 *) Allow certificate extensions to be added to certificate requests. These
7112 are specified in a 'req_extensions' option of the req section of the
7113 config file. They can be printed out with the -text option to req but
7114 are otherwise ignored at present.
7117 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7118 data read consists of only the final block it would not decrypted because
7119 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7120 A misplaced 'break' also meant the decrypted final block might not be
7121 copied until the next read.
7124 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7125 a few extra parameters to the DH structure: these will be useful if
7126 for example we want the value of 'q' or implement X9.42 DH.
7129 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7130 provides hooks that allow the default DSA functions or functions on a
7131 "per key" basis to be replaced. This allows hardware acceleration and
7132 hardware key storage to be handled without major modification to the
7133 library. Also added low level modexp hooks and CRYPTO_EX structure and
7134 associated functions.
7137 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7138 as "read only": it can't be written to and the buffer it points to will
7139 not be freed. Reading from a read only BIO is much more efficient than
7140 a normal memory BIO. This was added because there are several times when
7141 an area of memory needs to be read from a BIO. The previous method was
7142 to create a memory BIO and write the data to it, this results in two
7143 copies of the data and an O(n^2) reading algorithm. There is a new
7144 function BIO_new_mem_buf() which creates a read only memory BIO from
7145 an area of memory. Also modified the PKCS#7 routines to use read only
7149 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7150 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7151 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7152 but a retry condition occured while trying to read the rest.
7155 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7156 NID_pkcs7_encrypted by default: this was wrong since this should almost
7157 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7158 the encrypted data type: this is a more sensible place to put it and it
7159 allows the PKCS#12 code to be tidied up that duplicated this
7163 *) Changed obj_dat.pl script so it takes its input and output files on
7164 the command line. This should avoid shell escape redirection problems
7168 *) Initial support for certificate extension requests, these are included
7169 in things like Xenroll certificate requests. Included functions to allow
7170 extensions to be obtained and added.
7173 *) -crlf option to s_client and s_server for sending newlines as
7174 CRLF (as required by many protocols).
7177 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7179 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7180 [Ralf S. Engelschall]
7182 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7183 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7185 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7189 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7190 DH parameters/keys (q is lost during that conversion, but the resulting
7191 DH parameters contain its length).
7193 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7194 much faster than DH_generate_parameters (which creates parameters
7195 where p = 2*q + 1), and also the smaller q makes DH computations
7196 much more efficient (160-bit exponentiation instead of 1024-bit
7197 exponentiation); so this provides a convenient way to support DHE
7198 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7199 utter importance to use
7200 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7202 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7203 when such DH parameters are used, because otherwise small subgroup
7204 attacks may become possible!
7207 *) Avoid memory leak in i2d_DHparams.
7210 *) Allow the -k option to be used more than once in the enc program:
7211 this allows the same encrypted message to be read by multiple recipients.
7214 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7215 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7216 it will always use the numerical form of the OID, even if it has a short
7220 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7221 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7222 otherwise bn_mod_exp was called. In the case of hardware keys for example
7223 no private key components need be present and it might store extra data
7224 in the RSA structure, which cannot be accessed from bn_mod_exp.
7225 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7226 private key operations.
7229 *) Added support for SPARC Linux.
7232 *) pem_password_cb function type incompatibly changed from
7233 typedef int pem_password_cb(char *buf, int size, int rwflag);
7235 ....(char *buf, int size, int rwflag, void *userdata);
7236 so that applications can pass data to their callbacks:
7237 The PEM[_ASN1]_{read,write}... functions and macros now take an
7238 additional void * argument, which is just handed through whenever
7239 the password callback is called.
7240 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7242 New function SSL_CTX_set_default_passwd_cb_userdata.
7244 Compatibility note: As many C implementations push function arguments
7245 onto the stack in reverse order, the new library version is likely to
7246 interoperate with programs that have been compiled with the old
7247 pem_password_cb definition (PEM_whatever takes some data that
7248 happens to be on the stack as its last argument, and the callback
7249 just ignores this garbage); but there is no guarantee whatsoever that
7252 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7253 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7254 problems not only on Windows, but also on some Unix platforms.
7255 To avoid problematic command lines, these definitions are now in an
7256 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7257 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7260 *) MIPS III/IV assembler module is reimplemented.
7263 *) More DES library cleanups: remove references to srand/rand and
7264 delete an unused file.
7267 *) Add support for the the free Netwide assembler (NASM) under Win32,
7268 since not many people have MASM (ml) and it can be hard to obtain.
7269 This is currently experimental but it seems to work OK and pass all
7270 the tests. Check out INSTALL.W32 for info.
7273 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7274 without temporary keys kept an extra copy of the server key,
7275 and connections with temporary keys did not free everything in case
7279 *) New function RSA_check_key and new openssl rsa option -check
7280 for verifying the consistency of RSA keys.
7281 [Ulf Moeller, Bodo Moeller]
7283 *) Various changes to make Win32 compile work:
7284 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7285 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7286 comparison" warnings.
7287 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7290 *) Add a debugging option to PKCS#5 v2 key generation function: when
7291 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7292 derived keys are printed to stderr.
7295 *) Copy the flags in ASN1_STRING_dup().
7296 [Roman E. Pavlov <pre@mo.msk.ru>]
7298 *) The x509 application mishandled signing requests containing DSA
7299 keys when the signing key was also DSA and the parameters didn't match.
7301 It was supposed to omit the parameters when they matched the signing key:
7302 the verifying software was then supposed to automatically use the CA's
7303 parameters if they were absent from the end user certificate.
7305 Omitting parameters is no longer recommended. The test was also
7306 the wrong way round! This was probably due to unusual behaviour in
7307 EVP_cmp_parameters() which returns 1 if the parameters match.
7308 This meant that parameters were omitted when they *didn't* match and
7309 the certificate was useless. Certificates signed with 'ca' didn't have
7311 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7313 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7314 The interface is as follows:
7315 Applications can use
7316 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7317 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7318 "off" is now the default.
7319 The library internally uses
7320 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7321 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7322 to disable memory-checking temporarily.
7324 Some inconsistent states that previously were possible (and were
7325 even the default) are now avoided.
7327 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7328 with each memory chunk allocated; this is occasionally more helpful
7329 than just having a counter.
7331 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7333 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7337 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7338 which largely parallels "options", but is for changing API behaviour,
7339 whereas "options" are about protocol behaviour.
7340 Initial "mode" flags are:
7342 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7343 a single record has been written.
7344 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7345 retries use the same buffer location.
7346 (But all of the contents must be
7350 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7353 *) Fix problems with no-hmac etc.
7354 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7356 *) New functions RSA_get_default_method(), RSA_set_method() and
7357 RSA_get_method(). These allows replacement of RSA_METHODs without having
7358 to mess around with the internals of an RSA structure.
7361 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7362 Also really enable memory leak checks in openssl.c and in some
7364 [Chad C. Mulligan, Bodo Moeller]
7366 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7367 up the length of negative integers. This has now been simplified to just
7368 store the length when it is first determined and use it later, rather
7369 than trying to keep track of where data is copied and updating it to
7371 [Steve Henson, reported by Brien Wheeler
7372 <bwheeler@authentica-security.com>]
7374 *) Add a new function PKCS7_signatureVerify. This allows the verification
7375 of a PKCS#7 signature but with the signing certificate passed to the
7376 function itself. This contrasts with PKCS7_dataVerify which assumes the
7377 certificate is present in the PKCS#7 structure. This isn't always the
7378 case: certificates can be omitted from a PKCS#7 structure and be
7379 distributed by "out of band" means (such as a certificate database).
7382 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7383 function prototypes in pem.h, also change util/mkdef.pl to add the
7384 necessary function names.
7387 *) mk1mf.pl (used by Windows builds) did not properly read the
7388 options set by Configure in the top level Makefile, and Configure
7389 was not even able to write more than one option correctly.
7390 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7393 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7394 file to be loaded from a BIO or FILE pointer. The BIO version will
7395 for example allow memory BIOs to contain config info.
7398 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7399 Whoever hopes to achieve shared-library compatibility across versions
7400 must use this, not the compile-time macro.
7401 (Exercise 0.9.4: Which is the minimum library version required by
7403 Note: All this applies only to multi-threaded programs, others don't
7407 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7408 through a BIO pair triggered the default case, i.e.
7409 SSLerr(...,SSL_R_UNKNOWN_STATE).
7412 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7413 can use the SSL library even if none of the specific BIOs is
7417 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7418 for the encoded length.
7419 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7421 *) Add initial documentation of the X509V3 functions.
7424 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7425 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7426 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7427 secure PKCS#8 private key format with a high iteration count.
7430 *) Fix determination of Perl interpreter: A perl or perl5
7431 _directory_ in $PATH was also accepted as the interpreter.
7432 [Ralf S. Engelschall]
7434 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7435 wrong with it but it was very old and did things like calling
7436 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7440 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7441 to use the new extension code.
7444 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7445 with macros. This should make it easier to change their form, add extra
7446 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7450 *) Add to configuration table a new entry that can specify an alternative
7451 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7452 according to Mark Crispin <MRC@Panda.COM>.
7456 *) DES CBC did not update the IV. Weird.
7459 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7460 Changing the behaviour of the former might break existing programs --
7461 where IV updating is needed, des_ncbc_encrypt can be used.
7464 *) When bntest is run from "make test" it drives bc to check its
7465 calculations, as well as internally checking them. If an internal check
7466 fails, it needs to cause bc to give a non-zero result or make test carries
7467 on without noticing the failure. Fixed.
7470 *) DES library cleanups.
7473 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7474 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7475 ciphers. NOTE: although the key derivation function has been verified
7476 against some published test vectors it has not been extensively tested
7477 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7481 *) Instead of "mkdir -p", which is not fully portable, use new
7482 Perl script "util/mkdir-p.pl".
7485 *) Rewrite the way password based encryption (PBE) is handled. It used to
7486 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7487 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7488 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7489 the 'parameter' field of the AlgorithmIdentifier is passed to the
7490 underlying key generation function so it must do its own ASN1 parsing.
7491 This has also changed the EVP_PBE_CipherInit() function which now has a
7492 'parameter' argument instead of literal salt and iteration count values
7493 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7496 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7497 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7498 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7499 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7500 value was just used as a "magic string" and not used directly its
7501 value doesn't matter.
7504 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7508 *) "linux-sparc64" configuration (ultrapenguin).
7509 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7510 "linux-sparc" configuration.
7511 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7513 *) config now generates no-xxx options for missing ciphers.
7516 *) Support the EBCDIC character set (work in progress).
7517 File ebcdic.c not yet included because it has a different license.
7518 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7520 *) Support BS2000/OSD-POSIX.
7521 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7523 *) Make callbacks for key generation use void * instead of char *.
7526 *) Make S/MIME samples compile (not yet tested).
7529 *) Additional typesafe stacks.
7532 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7536 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7538 *) New configuration variant "sco5-gcc".
7540 *) Updated some demos.
7541 [Sean O Riordain, Wade Scholine]
7543 *) Add missing BIO_free at exit of pkcs12 application.
7546 *) Fix memory leak in conf.c.
7549 *) Updates for Win32 to assembler version of MD5.
7552 *) Set #! path to perl in apps/der_chop to where we found it
7553 instead of using a fixed path.
7556 *) SHA library changes for irix64-mips4-cc.
7559 *) Improvements for VMS support.
7563 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7565 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7566 This also avoids the problems with SC4.2 and unpatched SC5.
7567 [Andy Polyakov <appro@fy.chalmers.se>]
7569 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7570 These are required because of the typesafe stack would otherwise break
7571 existing code. If old code used a structure member which used to be STACK
7572 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7573 sk_num or sk_value it would produce an error because the num, data members
7574 are not present in STACK_OF. Now it just produces a warning. sk_set
7575 replaces the old method of assigning a value to sk_value
7576 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7577 that does this will no longer work (and should use sk_set instead) but
7578 this could be regarded as a "questionable" behaviour anyway.
7581 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7582 correctly handle encrypted S/MIME data.
7585 *) Change type of various DES function arguments from des_cblock
7586 (which means, in function argument declarations, pointer to char)
7587 to des_cblock * (meaning pointer to array with 8 char elements),
7588 which allows the compiler to do more typechecking; it was like
7589 that back in SSLeay, but with lots of ugly casts.
7591 Introduce new type const_des_cblock.
7594 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7595 problems: find RecipientInfo structure that matches recipient certificate
7596 and initialise the ASN1 structures properly based on passed cipher.
7599 *) Belatedly make the BN tests actually check the results.
7602 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7603 to and from BNs: it was completely broken. New compilation option
7604 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7605 key elements as negative integers.
7608 *) Reorganize and speed up MD5.
7609 [Andy Polyakov <appro@fy.chalmers.se>]
7612 [Richard Levitte <richard@levitte.org>]
7614 *) New option -out to asn1parse to allow the parsed structure to be
7615 output to a file. This is most useful when combined with the -strparse
7616 option to examine the output of things like OCTET STRINGS.
7619 *) Make SSL library a little more fool-proof by not requiring any longer
7620 that SSL_set_{accept,connect}_state be called before
7621 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7622 in many applications because usually everything *appeared* to work as
7623 intended anyway -- now it really works as intended).
7626 *) Move openssl.cnf out of lib/.
7629 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7630 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7631 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7632 [Ralf S. Engelschall]
7634 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7635 handle PKCS#7 enveloped data properly.
7636 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7638 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7639 copying pointers. The cert_st handling is changed by this in
7640 various ways (and thus what used to be known as ctx->default_cert
7641 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7642 any longer when s->cert does not give us what we need).
7643 ssl_cert_instantiate becomes obsolete by this change.
7644 As soon as we've got the new code right (possibly it already is?),
7645 we have solved a couple of bugs of the earlier code where s->cert
7646 was used as if it could not have been shared with other SSL structures.
7648 Note that using the SSL API in certain dirty ways now will result
7649 in different behaviour than observed with earlier library versions:
7650 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7651 does not influence s as it used to.
7653 In order to clean up things more thoroughly, inside SSL_SESSION
7654 we don't use CERT any longer, but a new structure SESS_CERT
7655 that holds per-session data (if available); currently, this is
7656 the peer's certificate chain and, for clients, the server's certificate
7657 and temporary key. CERT holds only those values that can have
7658 meaningful defaults in an SSL_CTX.
7661 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7662 from the internal representation. Various PKCS#7 fixes: remove some
7663 evil casts and set the enc_dig_alg field properly based on the signing
7667 *) Allow PKCS#12 password to be set from the command line or the
7668 environment. Let 'ca' get its config file name from the environment
7669 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7673 *) Allow certificate policies extension to use an IA5STRING for the
7674 organization field. This is contrary to the PKIX definition but
7675 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7679 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7680 without disallowing inline assembler and the like for non-pedantic builds.
7683 *) Support Borland C++ builder.
7684 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7689 *) SHA-1 cleanups and performance enhancements.
7690 [Andy Polyakov <appro@fy.chalmers.se>]
7692 *) Sparc v8plus assembler for the bignum library.
7693 [Andy Polyakov <appro@fy.chalmers.se>]
7695 *) Accept any -xxx and +xxx compiler options in Configure.
7698 *) Update HPUX configuration.
7701 *) Add missing sk_<type>_unshift() function to safestack.h
7702 [Ralf S. Engelschall]
7704 *) New function SSL_CTX_use_certificate_chain_file that sets the
7705 "extra_cert"s in addition to the certificate. (This makes sense
7706 only for "PEM" format files, as chains as a whole are not
7710 *) Support verify_depth from the SSL API.
7711 x509_vfy.c had what can be considered an off-by-one-error:
7712 Its depth (which was not part of the external interface)
7713 was actually counting the number of certificates in a chain;
7714 now it really counts the depth.
7717 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7718 instead of X509err, which often resulted in confusing error
7719 messages since the error codes are not globally unique
7720 (e.g. an alleged error in ssl3_accept when a certificate
7721 didn't match the private key).
7723 *) New function SSL_CTX_set_session_id_context that allows to set a default
7724 value (so that you don't need SSL_set_session_id_context for each
7725 connection using the SSL_CTX).
7728 *) OAEP decoding bug fix.
7731 *) Support INSTALL_PREFIX for package builders, as proposed by
7735 *) New Configure options "threads" and "no-threads". For systems
7736 where the proper compiler options are known (currently Solaris
7737 and Linux), "threads" is the default.
7740 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7743 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7744 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7745 such as /usr/local/bin.
7748 *) "make linux-shared" to build shared libraries.
7749 [Niels Poppe <niels@netbox.org>]
7751 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7754 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7755 extension adding in x509 utility.
7758 *) Remove NOPROTO sections and error code comments.
7761 *) Partial rewrite of the DEF file generator to now parse the ANSI
7765 *) New Configure options --prefix=DIR and --openssldir=DIR.
7768 *) Complete rewrite of the error code script(s). It is all now handled
7769 by one script at the top level which handles error code gathering,
7770 header rewriting and C source file generation. It should be much better
7771 than the old method: it now uses a modified version of Ulf's parser to
7772 read the ANSI prototypes in all header files (thus the old K&R definitions
7773 aren't needed for error creation any more) and do a better job of
7774 translating function codes into names. The old 'ASN1 error code imbedded
7775 in a comment' is no longer necessary and it doesn't use .err files which
7776 have now been deleted. Also the error code call doesn't have to appear all
7777 on one line (which resulted in some large lines...).
7780 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7783 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7784 0 (which usually indicates a closed connection), but continue reading.
7787 *) Fix some race conditions.
7790 *) Add support for CRL distribution points extension. Add Certificate
7791 Policies and CRL distribution points documentation.
7794 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7797 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7798 8 of keying material. Merlin has also confirmed interop with this fix
7799 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7800 [Merlin Hughes <merlin@baltimore.ie>]
7802 *) Fix lots of warnings.
7803 [Richard Levitte <levitte@stacken.kth.se>]
7805 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7806 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7807 [Richard Levitte <levitte@stacken.kth.se>]
7809 *) Fix problems with sizeof(long) == 8.
7810 [Andy Polyakov <appro@fy.chalmers.se>]
7812 *) Change functions to ANSI C.
7815 *) Fix typos in error codes.
7816 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7818 *) Remove defunct assembler files from Configure.
7821 *) SPARC v8 assembler BIGNUM implementation.
7822 [Andy Polyakov <appro@fy.chalmers.se>]
7824 *) Support for Certificate Policies extension: both print and set.
7825 Various additions to support the r2i method this uses.
7828 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7829 return a const string when you are expecting an allocated buffer.
7832 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7833 types DirectoryString and DisplayText.
7836 *) Add code to allow r2i extensions to access the configuration database,
7837 add an LHASH database driver and add several ctx helper functions.
7840 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7841 fail when they extended the size of a BIGNUM.
7844 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7845 support typesafe stack.
7848 *) Fix typo in SSL_[gs]et_options().
7849 [Nils Frostberg <nils@medcom.se>]
7851 *) Delete various functions and files that belonged to the (now obsolete)
7852 old X509V3 handling code.
7855 *) New Configure option "rsaref".
7858 *) Don't auto-generate pem.h.
7861 *) Introduce type-safe ASN.1 SETs.
7864 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7865 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7867 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7868 that links with OpenSSL (well at least cause lots of warnings), but fear
7869 not: the conversion is trivial, and it eliminates loads of evil casts. A
7870 few STACKed things have been converted already. Feel free to convert more.
7871 In the fullness of time, I'll do away with the STACK type altogether.
7874 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7875 specified in <certfile> by updating the entry in the index.txt file.
7876 This way one no longer has to edit the index.txt file manually for
7877 revoking a certificate. The -revoke option does the gory details now.
7878 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7880 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7881 `-text' option at all and this way the `-noout -text' combination was
7882 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7883 [Ralf S. Engelschall]
7885 *) Make sure a corresponding plain text error message exists for the
7886 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7887 verify callback function determined that a certificate was revoked.
7888 [Ralf S. Engelschall]
7890 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7891 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7892 all available cipers including rc5, which was forgotten until now.
7893 In order to let the testing shell script know which algorithms
7894 are available, a new (up to now undocumented) command
7895 "openssl list-cipher-commands" is used.
7898 *) Bugfix: s_client occasionally would sleep in select() when
7899 it should have checked SSL_pending() first.
7902 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7903 the raw DSA values prior to ASN.1 encoding.
7906 *) Tweaks to Configure
7907 [Niels Poppe <niels@netbox.org>]
7909 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7913 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7916 *) New config option to avoid instructions that are illegal on the 80386.
7917 The default code is faster, but requires at least a 486.
7920 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7921 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7922 same as SSL2_VERSION anyway.
7925 *) New "-showcerts" option for s_client.
7928 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7929 application. Various cleanups and fixes.
7932 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7933 modify error routines to work internally. Add error codes and PBE init
7934 to library startup routines.
7937 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7938 packing functions to asn1 and evp. Changed function names and error
7939 codes along the way.
7942 *) PKCS12 integration: and so it begins... First of several patches to
7943 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7944 objects to objects.h
7947 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7948 and display support for Thawte strong extranet extension.
7951 *) Add LinuxPPC support.
7952 [Jeff Dubrule <igor@pobox.org>]
7954 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7955 bn_div_words in alpha.s.
7956 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7958 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7959 OAEP isn't supported when OpenSSL is built with RSAref.
7960 [Ulf Moeller <ulf@fitug.de>]
7962 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7963 so they no longer are missing under -DNOPROTO.
7964 [Soren S. Jorvang <soren@t.dk>]
7967 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7969 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7970 doesn't work when the session is reused. Coming soon!
7973 *) Fix a security hole, that allows sessions to be reused in the wrong
7974 context thus bypassing client cert protection! All software that uses
7975 client certs and session caches in multiple contexts NEEDS PATCHING to
7976 allow session reuse! A fuller solution is in the works.
7977 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7979 *) Some more source tree cleanups (removed obsolete files
7980 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7981 permission on "config" script to be executable) and a fix for the INSTALL
7983 [Ulf Moeller <ulf@fitug.de>]
7985 *) Remove some legacy and erroneous uses of malloc, free instead of
7987 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7989 *) Make rsa_oaep_test return non-zero on error.
7990 [Ulf Moeller <ulf@fitug.de>]
7992 *) Add support for native Solaris shared libraries. Configure
7993 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7994 if someone would make that last step automatic.
7995 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7997 *) ctx_size was not built with the right compiler during "make links". Fixed.
8000 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8001 except NULL ciphers". This means the default cipher list will no longer
8002 enable NULL ciphers. They need to be specifically enabled e.g. with
8003 the string "DEFAULT:eNULL".
8006 *) Fix to RSA private encryption routines: if p < q then it would
8007 occasionally produce an invalid result. This will only happen with
8008 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8011 *) Be less restrictive and allow also `perl util/perlpath.pl
8012 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8013 because this way one can also use an interpreter named `perl5' (which is
8014 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8015 installed as `perl').
8016 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8018 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8019 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8021 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8022 advapi32.lib to Win32 build and change the pem test comparision
8023 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8024 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8025 and crypto/des/ede_cbcm_enc.c.
8028 *) DES quad checksum was broken on big-endian architectures. Fixed.
8031 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8032 Win32 test batch file so it (might) work again. The Win32 test batch file
8033 is horrible: I feel ill....
8036 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8037 in e_os.h. Audit of header files to check ANSI and non ANSI
8038 sections: 10 functions were absent from non ANSI section and not exported
8039 from Windows DLLs. Fixed up libeay.num for new functions.
8042 *) Make `openssl version' output lines consistent.
8043 [Ralf S. Engelschall]
8045 *) Fix Win32 symbol export lists for BIO functions: Added
8046 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8047 to ms/libeay{16,32}.def.
8048 [Ralf S. Engelschall]
8050 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8051 fine under Unix and passes some trivial tests I've now added. But the
8052 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8053 added to make sure no one expects that this stuff really works in the
8054 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8055 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8057 [Ralf S. Engelschall]
8059 *) Fix the generation of two part addresses in perl.
8060 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8062 *) Add config entry for Linux on MIPS.
8063 [John Tobey <jtobey@channel1.com>]
8065 *) Make links whenever Configure is run, unless we are on Windoze.
8068 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8069 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8073 *) Add a useful kludge to allow package maintainers to specify compiler and
8074 other platforms details on the command line without having to patch the
8075 Configure script everytime: One now can use ``perl Configure
8076 <id>:<details>'', i.e. platform ids are allowed to have details appended
8077 to them (seperated by colons). This is treated as there would be a static
8078 pre-configured entry in Configure's %table under key <id> with value
8079 <details> and ``perl Configure <id>'' is called. So, when you want to
8080 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8081 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8082 now, which overrides the FreeBSD-elf entry on-the-fly.
8083 [Ralf S. Engelschall]
8085 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8088 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8089 on the `perl Configure ...' command line. This way one can compile
8090 OpenSSL libraries with Position Independent Code (PIC) which is needed
8091 for linking it into DSOs.
8092 [Ralf S. Engelschall]
8094 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8098 *) Cleaned up the LICENSE document: The official contact for any license
8099 questions now is the OpenSSL core team under openssl-core@openssl.org.
8100 And add a paragraph about the dual-license situation to make sure people
8101 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8102 to the OpenSSL toolkit.
8103 [Ralf S. Engelschall]
8105 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8106 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8107 Additonally cleaned up the `make links' target: Remove unnecessary
8108 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8109 to speed processing and no longer clutter the display with confusing
8110 stuff. Instead only the actually done links are displayed.
8111 [Ralf S. Engelschall]
8113 *) Permit null encryption ciphersuites, used for authentication only. It used
8114 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8115 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8119 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8120 signed attributes when verifying signatures (this would break them),
8121 the detached data encoding was wrong and public keys obtained using
8122 X509_get_pubkey() weren't freed.
8125 *) Add text documentation for the BUFFER functions. Also added a work around
8126 to a Win95 console bug. This was triggered by the password read stuff: the
8127 last character typed gets carried over to the next fread(). If you were
8128 generating a new cert request using 'req' for example then the last
8129 character of the passphrase would be CR which would then enter the first
8133 *) Added the new `Includes OpenSSL Cryptography Software' button as
8134 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8135 button and can be used by applications based on OpenSSL to show the
8136 relationship to the OpenSSL project.
8137 [Ralf S. Engelschall]
8139 *) Remove confusing variables in function signatures in files
8140 ssl/ssl_lib.c and ssl/ssl.h.
8141 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8143 *) Don't install bss_file.c under PREFIX/include/
8144 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8146 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8147 functions that return function pointers and has support for NT specific
8148 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8149 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8150 unsigned to signed types: this was killing the Win32 compile.
8153 *) Add new certificate file to stack functions,
8154 SSL_add_dir_cert_subjects_to_stack() and
8155 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8156 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8157 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8158 This means that Apache-SSL and similar packages don't have to mess around
8159 to add as many CAs as they want to the preferred list.
8162 *) Experiment with doxygen documentation. Currently only partially applied to
8164 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8165 openssl.doxy as the configuration file.
8168 *) Get rid of remaining C++-style comments which strict C compilers hate.
8169 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8171 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8172 compiled in by default: it has problems with large keys.
8175 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8176 DH private keys and/or callback functions which directly correspond to
8177 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8178 is needed for applications which have to configure certificates on a
8179 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8181 For the RSA certificate situation is makes no difference, but
8182 for the DSA certificate situation this fixes the "no shared cipher"
8183 problem where the OpenSSL cipher selection procedure failed because the
8184 temporary keys were not overtaken from the context and the API provided
8185 no way to reconfigure them.
8186 The new functions now let applications reconfigure the stuff and they
8187 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8188 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8189 non-public-API function ssl_cert_instantiate() is used as a helper
8190 function and also to reduce code redundancy inside ssl_rsa.c.
8191 [Ralf S. Engelschall]
8193 *) Move s_server -dcert and -dkey options out of the undocumented feature
8194 area because they are useful for the DSA situation and should be
8195 recognized by the users.
8196 [Ralf S. Engelschall]
8198 *) Fix the cipher decision scheme for export ciphers: the export bits are
8199 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8200 SSL_EXP_MASK. So, the original variable has to be used instead of the
8201 already masked variable.
8202 [Richard Levitte <levitte@stacken.kth.se>]
8204 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8205 [Richard Levitte <levitte@stacken.kth.se>]
8207 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8208 from `int' to `unsigned int' because it's a length and initialized by
8209 EVP_DigestFinal() which expects an `unsigned int *'.
8210 [Richard Levitte <levitte@stacken.kth.se>]
8212 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8213 script. Instead use the usual Shell->Perl transition trick.
8214 [Ralf S. Engelschall]
8216 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8217 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8218 -noout -modulus' as it's already the case for `openssl rsa -noout
8219 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8220 currently the public key is printed (a decision which was already done by
8221 `openssl dsa -modulus' in the past) which serves a similar purpose.
8222 Additionally the NO_RSA no longer completely removes the whole -modulus
8223 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8225 [Ralf S. Engelschall]
8227 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8228 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8229 [Arne Ansper <arne@ats.cyber.ee>]
8231 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8232 to be added. Now both 'req' and 'ca' can use new objects defined in the
8236 *) Add cool BIO that does syslog (or event log on NT).
8237 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8239 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8240 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8241 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8242 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8245 *) Add preliminary config info for new extension code.
8248 *) Make RSA_NO_PADDING really use no padding.
8249 [Ulf Moeller <ulf@fitug.de>]
8251 *) Generate errors when private/public key check is done.
8254 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8255 for some CRL extensions and new objects added.
8258 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8259 key usage extension and fuller support for authority key id.
8262 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8263 padding method for RSA, which is recommended for new applications in PKCS
8264 #1 v2.0 (RFC 2437, October 1998).
8265 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8266 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8267 against Bleichbacher's attack on RSA.
8268 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8271 *) Updates to the new SSL compression code
8272 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8274 *) Fix so that the version number in the master secret, when passed
8275 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8276 (because the server will not accept higher), that the version number
8277 is 0x03,0x01, not 0x03,0x00
8278 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8280 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8281 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8282 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8285 *) Support for RAW extensions where an arbitrary extension can be
8286 created by including its DER encoding. See apps/openssl.cnf for
8290 *) Make sure latest Perl versions don't interpret some generated C array
8291 code as Perl array code in the crypto/err/err_genc.pl script.
8292 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8294 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8295 not many people have the assembler. Various Win32 compilation fixes and
8296 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8300 *) Modify configure script 'Configure' to automatically create crypto/date.h
8301 file under Win32 and also build pem.h from pem.org. New script
8302 util/mkfiles.pl to create the MINFO file on environments that can't do a
8303 'make files': perl util/mkfiles.pl >MINFO should work.
8306 *) Major rework of DES function declarations, in the pursuit of correctness
8307 and purity. As a result, many evil casts evaporated, and some weirdness,
8308 too. You may find this causes warnings in your code. Zapping your evil
8309 casts will probably fix them. Mostly.
8312 *) Fix for a typo in asn1.h. Bug fix to object creation script
8313 obj_dat.pl. It considered a zero in an object definition to mean
8314 "end of object": none of the objects in objects.h have any zeros
8315 so it wasn't spotted.
8316 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8318 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8319 Masking (CBCM). In the absence of test vectors, the best I have been able
8320 to do is check that the decrypt undoes the encrypt, so far. Send me test
8321 vectors if you have them.
8324 *) Correct calculation of key length for export ciphers (too much space was
8325 allocated for null ciphers). This has not been tested!
8328 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8329 message is now correct (it understands "crypto" and "ssl" on its
8330 command line). There is also now an "update" option. This will update
8331 the util/ssleay.num and util/libeay.num files with any new functions.
8333 perl util/mkdef.pl crypto ssl update
8334 it will update them.
8337 *) Overhauled the Perl interface (perl/*):
8338 - ported BN stuff to OpenSSL's different BN library
8339 - made the perl/ source tree CVS-aware
8340 - renamed the package from SSLeay to OpenSSL (the files still contain
8341 their history because I've copied them in the repository)
8342 - removed obsolete files (the test scripts will be replaced
8343 by better Test::Harness variants in the future)
8344 [Ralf S. Engelschall]
8346 *) First cut for a very conservative source tree cleanup:
8347 1. merge various obsolete readme texts into doc/ssleay.txt
8348 where we collect the old documents and readme texts.
8349 2. remove the first part of files where I'm already sure that we no
8350 longer need them because of three reasons: either they are just temporary
8351 files which were left by Eric or they are preserved original files where
8352 I've verified that the diff is also available in the CVS via "cvs diff
8353 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8354 the crypto/md/ stuff).
8355 [Ralf S. Engelschall]
8357 *) More extension code. Incomplete support for subject and issuer alt
8358 name, issuer and authority key id. Change the i2v function parameters
8359 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8360 what that's for :-) Fix to ASN1 macro which messed up
8361 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8364 *) Preliminary support for ENUMERATED type. This is largely copied from the
8368 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8369 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8371 *) Make sure `make rehash' target really finds the `openssl' program.
8372 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8374 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8375 like to hear about it if this slows down other processors.
8378 *) Add CygWin32 platform information to Configure script.
8379 [Alan Batie <batie@aahz.jf.intel.com>]
8381 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8382 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8384 *) New program nseq to manipulate netscape certificate sequences
8387 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8391 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8392 but the BN code had some problems that would cause failures when
8393 doing certificate verification and some other functions.
8394 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8396 *) Add ASN1 and PEM code to support netscape certificate sequences.
8399 *) Add ASN1 and PEM code to support netscape certificate sequences.
8402 *) Add several PKIX and private extended key usage OIDs.
8405 *) Modify the 'ca' program to handle the new extension code. Modify
8406 openssl.cnf for new extension format, add comments.
8409 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8410 and add a sample to openssl.cnf so req -x509 now adds appropriate
8414 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8415 error code, add initial support to X509_print() and x509 application.
8418 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8419 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8420 stuff is currently isolated and isn't even compiled yet.
8423 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8424 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8425 Removed the versions check from X509 routines when loading extensions:
8426 this allows certain broken certificates that don't set the version
8427 properly to be processed.
8430 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8431 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8432 can still be regenerated with "make depend".
8435 *) Spelling mistake in C version of CAST-128.
8436 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8438 *) Changes to the error generation code. The perl script err-code.pl
8439 now reads in the old error codes and retains the old numbers, only
8440 adding new ones if necessary. It also only changes the .err files if new
8441 codes are added. The makefiles have been modified to only insert errors
8442 when needed (to avoid needlessly modifying header files). This is done
8443 by only inserting errors if the .err file is newer than the auto generated
8444 C file. To rebuild all the error codes from scratch (the old behaviour)
8445 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8446 or delete all the .err files.
8449 *) CAST-128 was incorrectly implemented for short keys. The C version has
8450 been fixed, but is untested. The assembler versions are also fixed, but
8451 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8452 to regenerate it if needed.
8453 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8454 Hagino <itojun@kame.net>]
8456 *) File was opened incorrectly in randfile.c.
8457 [Ulf Möller <ulf@fitug.de>]
8459 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8460 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8461 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8462 al: it's just almost always a UTCTime. Note this patch adds new error
8463 codes so do a "make errors" if there are problems.
8466 *) Correct Linux 1 recognition in config.
8467 [Ulf Möller <ulf@fitug.de>]
8469 *) Remove pointless MD5 hash when using DSA keys in ca.
8470 [Anonymous <nobody@replay.com>]
8472 *) Generate an error if given an empty string as a cert directory. Also
8473 generate an error if handed NULL (previously returned 0 to indicate an
8474 error, but didn't set one).
8475 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8477 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8480 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8481 parameters. This was causing a warning which killed off the Win32 compile.
8484 *) Remove C++ style comments from crypto/bn/bn_local.h.
8485 [Neil Costigan <neil.costigan@celocom.com>]
8487 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8488 based on a text string, looking up short and long names and finally
8489 "dot" format. The "dot" format stuff didn't work. Added new function
8490 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8491 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8492 OID is not part of the table.
8495 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8496 X509_LOOKUP_by_alias().
8499 *) Sort openssl functions by name.
8502 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8503 encryption from sample DSA keys (in case anyone is interested the password
8507 *) Make _all_ *_free functions accept a NULL pointer.
8508 [Frans Heymans <fheymans@isaserver.be>]
8510 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8512 [Anonymous <nobody@replay.com>]
8514 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8515 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8517 *) Don't blow it for numeric -newkey arguments to apps/req.
8518 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8520 *) Temp key "for export" tests were wrong in s3_srvr.c.
8521 [Anonymous <nobody@replay.com>]
8523 *) Add prototype for temp key callback functions
8524 SSL_CTX_set_tmp_{rsa,dh}_callback().
8527 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8528 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8531 *) X509_name_add_entry() freed the wrong thing after an error.
8532 [Arne Ansper <arne@ats.cyber.ee>]
8534 *) rsa_eay.c would attempt to free a NULL context.
8535 [Arne Ansper <arne@ats.cyber.ee>]
8537 *) BIO_s_socket() had a broken should_retry() on Windoze.
8538 [Arne Ansper <arne@ats.cyber.ee>]
8540 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8541 [Arne Ansper <arne@ats.cyber.ee>]
8543 *) Make sure the already existing X509_STORE->depth variable is initialized
8544 in X509_STORE_new(), but document the fact that this variable is still
8545 unused in the certificate verification process.
8546 [Ralf S. Engelschall]
8548 *) Fix the various library and apps files to free up pkeys obtained from
8549 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8552 *) Fix reference counting in X509_PUBKEY_get(). This makes
8553 demos/maurice/example2.c work, amongst others, probably.
8554 [Steve Henson and Ben Laurie]
8556 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8557 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8558 are no longer created. This way we have a single and consistent command
8559 line interface `openssl <command>', similar to `cvs <command>'.
8560 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8562 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8563 BIT STRING wrapper always have zero unused bits.
8566 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8569 *) Make the top-level INSTALL documentation easier to understand.
8572 *) Makefiles updated to exit if an error occurs in a sub-directory
8573 make (including if user presses ^C) [Paul Sutton]
8575 *) Make Montgomery context stuff explicit in RSA data structure.
8578 *) Fix build order of pem and err to allow for generated pem.h.
8581 *) Fix renumbering bug in X509_NAME_delete_entry().
8584 *) Enhanced the err-ins.pl script so it makes the error library number
8585 global and can add a library name. This is needed for external ASN1 and
8586 other error libraries.
8589 *) Fixed sk_insert which never worked properly.
8592 *) Fix ASN1 macros so they can handle indefinite length construted
8593 EXPLICIT tags. Some non standard certificates use these: they can now
8597 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8598 into a single doc/ssleay.txt bundle. This way the information is still
8599 preserved but no longer messes up this directory. Now it's new room for
8600 the new set of documenation files.
8601 [Ralf S. Engelschall]
8603 *) SETs were incorrectly DER encoded. This was a major pain, because they
8604 shared code with SEQUENCEs, which aren't coded the same. This means that
8605 almost everything to do with SETs or SEQUENCEs has either changed name or
8606 number of arguments.
8607 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8609 *) Fix test data to work with the above.
8612 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8613 was already fixed by Eric for 0.9.1 it seems.
8614 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8616 *) Autodetect FreeBSD3.
8619 *) Fix various bugs in Configure. This affects the following platforms:
8623 unixware-2.0-pentium
8627 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8628 before they are needed.
8631 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8635 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8637 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8638 changed SSLeay to OpenSSL in version strings.
8639 [Ralf S. Engelschall]
8641 *) Some fixups to the top-level documents.
8644 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8645 because the symlink to include/ was missing.
8646 [Ralf S. Engelschall]
8648 *) Incorporated the popular no-RSA/DSA-only patches
8649 which allow to compile a RSA-free SSLeay.
8650 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8652 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8653 when "ssleay" is still not found.
8654 [Ralf S. Engelschall]
8656 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8657 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8659 *) Updated the README file.
8660 [Ralf S. Engelschall]
8662 *) Added various .cvsignore files in the CVS repository subdirs
8663 to make a "cvs update" really silent.
8664 [Ralf S. Engelschall]
8666 *) Recompiled the error-definition header files and added
8667 missing symbols to the Win32 linker tables.
8668 [Ralf S. Engelschall]
8670 *) Cleaned up the top-level documents;
8671 o new files: CHANGES and LICENSE
8672 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8673 o merged COPYRIGHT into LICENSE
8674 o removed obsolete TODO file
8675 o renamed MICROSOFT to INSTALL.W32
8676 [Ralf S. Engelschall]
8678 *) Removed dummy files from the 0.9.1b source tree:
8679 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8680 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8681 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8682 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8683 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8684 [Ralf S. Engelschall]
8686 *) Added various platform portability fixes.
8689 *) The Genesis of the OpenSSL rpject:
8690 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8691 Young and Tim J. Hudson created while they were working for C2Net until
8693 [The OpenSSL Project]
8696 Changes between 0.9.0b and 0.9.1b [not released]
8698 *) Updated a few CA certificates under certs/
8701 *) Changed some BIGNUM api stuff.
8704 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8705 DGUX x86, Linux Alpha, etc.
8708 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8709 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8713 *) Add -strparse option to asn1pars program which parses nested
8715 [Dr Stephen Henson <shenson@bigfoot.com>]
8717 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8720 *) DSA fix for "ca" program.
8723 *) Added "-genkey" option to "dsaparam" program.
8726 *) Added RIPE MD160 (rmd160) message digest.
8729 *) Added -a (all) option to "ssleay version" command.
8732 *) Added PLATFORM define which is the id given to Configure.
8735 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8738 *) Extended the ASN.1 parser routines.
8741 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8744 *) Added a BN_CTX to the BN library.
8747 *) Fixed the weak key values in DES library
8750 *) Changed API in EVP library for cipher aliases.
8753 *) Added support for RC2/64bit cipher.
8756 *) Converted the lhash library to the crypto/mem.c functions.
8759 *) Added more recognized ASN.1 object ids.
8762 *) Added more RSA padding checks for SSL/TLS.
8765 *) Added BIO proxy/filter functionality.
8768 *) Added extra_certs to SSL_CTX which can be used
8769 send extra CA certificates to the client in the CA cert chain sending
8770 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8773 *) Now Fortezza is denied in the authentication phase because
8774 this is key exchange mechanism is not supported by SSLeay at all.
8777 *) Additional PKCS1 checks.
8780 *) Support the string "TLSv1" for all TLS v1 ciphers.
8783 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8784 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8787 *) Fixed a few memory leaks.
8790 *) Fixed various code and comment typos.
8793 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8794 bytes sent in the client random.
8795 [Edward Bishop <ebishop@spyglass.com>]