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 *) Zlib compression BIO. This is a filter BIO which compressed and
685 uncompresses any data passed through it.
688 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
689 RFC3394 compatible AES key wrapping.
692 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
693 sets string data without copying. X509_ALGOR_set0() and
694 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
695 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
696 from an X509_ATTRIBUTE structure optionally checking it occurs only
697 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
701 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
702 to get the expected BN_FLG_CONSTTIME behavior.
703 [Bodo Moeller (Google)]
707 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
708 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
709 - added some more tests to do_tests.pl
710 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
711 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
712 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
713 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
714 - various changes to netware.pl to enable gcc-cross builds on Win32
716 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
717 - various changes to fix missing prototype warnings
718 - fixed x86nasm.pl to create correct asm files for NASM COFF output
719 - added AES, WHIRLPOOL and CPUID assembler code to build files
720 - added missing AES assembler make rules to mk1mf.pl
721 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
722 [Guenter Knauf <eflash@gmx.net>]
724 *) Implement certificate status request TLS extension defined in RFC3546.
725 A client can set the appropriate parameters and receive the encoded
726 OCSP response via a callback. A server can query the supplied parameters
727 and set the encoded OCSP response in the callback. Add simplified examples
728 to s_client and s_server.
731 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
734 + Binary incompatibility of ssl_ctx_st structure
735 + DTLS interoperation with non-compliant servers
736 + Don't call get_session_cb() without proposed session
737 + Fix ia64 assembler code
738 [Andy Polyakov, Steve Henson]
740 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
742 *) DTLS Handshake overhaul. There were longstanding issues with
743 OpenSSL DTLS implementation, which were making it impossible for
744 RFC 4347 compliant client to communicate with OpenSSL server.
745 Unfortunately just fixing these incompatibilities would "cut off"
746 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
747 server keeps tolerating non RFC compliant syntax. The opposite is
748 not true, 0.9.8f client can not communicate with earlier server.
749 This update even addresses CVE-2007-4995.
752 *) Changes to avoid need for function casts in OpenSSL: some compilers
753 (gcc 4.2 and later) reject their use.
754 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
757 *) Add RFC4507 support to OpenSSL. This includes the corrections in
758 RFC4507bis. The encrypted ticket format is an encrypted encoded
759 SSL_SESSION structure, that way new session features are automatically
762 If a client application caches session in an SSL_SESSION structure
763 support is transparent because tickets are now stored in the encoded
766 The SSL_CTX structure automatically generates keys for ticket
767 protection in servers so again support should be possible
768 with no application modification.
770 If a client or server wishes to disable RFC4507 support then the option
771 SSL_OP_NO_TICKET can be set.
773 Add a TLS extension debugging callback to allow the contents of any client
774 or server extensions to be examined.
776 This work was sponsored by Google.
779 *) Add initial support for TLS extensions, specifically for the server_name
780 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
781 have new members for a host name. The SSL data structure has an
782 additional member SSL_CTX *initial_ctx so that new sessions can be
783 stored in that context to allow for session resumption, even after the
784 SSL has been switched to a new SSL_CTX in reaction to a client's
785 server_name extension.
787 New functions (subject to change):
790 SSL_get_servername_type()
793 New CTRL codes and macros (subject to change):
795 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
796 - SSL_CTX_set_tlsext_servername_callback()
797 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
798 - SSL_CTX_set_tlsext_servername_arg()
799 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
801 openssl s_client has a new '-servername ...' option.
803 openssl s_server has new options '-servername_host ...', '-cert2 ...',
804 '-key2 ...', '-servername_fatal' (subject to change). This allows
805 testing the HostName extension for a specific single host name ('-cert'
806 and '-key' remain fallbacks for handshakes without HostName
807 negotiation). If the unrecogninzed_name alert has to be sent, this by
808 default is a warning; it becomes fatal with the '-servername_fatal'
811 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
813 *) Add AES and SSE2 assembly language support to VC++ build.
816 *) Mitigate attack on final subtraction in Montgomery reduction.
819 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
820 (which previously caused an internal error).
823 *) Squeeze another 10% out of IGE mode when in != out.
826 *) AES IGE mode speedup.
827 [Dean Gaudet (Google)]
829 *) Add the Korean symmetric 128-bit cipher SEED (see
830 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
831 add SEED ciphersuites from RFC 4162:
833 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
834 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
835 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
836 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
838 To minimize changes between patchlevels in the OpenSSL 0.9.8
839 series, SEED remains excluded from compilation unless OpenSSL
840 is configured with 'enable-seed'.
843 *) Mitigate branch prediction attacks, which can be practical if a
844 single processor is shared, allowing a spy process to extract
845 information. For detailed background information, see
846 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
847 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
848 and Necessary Software Countermeasures"). The core of the change
849 are new versions BN_div_no_branch() and
850 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
851 respectively, which are slower, but avoid the security-relevant
852 conditional branches. These are automatically called by BN_div()
853 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
854 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
855 remove a conditional branch.
857 BN_FLG_CONSTTIME is the new name for the previous
858 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
859 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
860 in the exponent causes BN_mod_exp_mont() to use the alternative
861 implementation in BN_mod_exp_mont_consttime().) The old name
862 remains as a deprecated alias.
864 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
865 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
866 constant-time implementations for more than just exponentiation.
867 Here too the old name is kept as a deprecated alias.
869 BN_BLINDING_new() will now use BN_dup() for the modulus so that
870 the BN_BLINDING structure gets an independent copy of the
871 modulus. This means that the previous "BIGNUM *m" argument to
872 BN_BLINDING_new() and to BN_BLINDING_create_param() now
873 essentially becomes "const BIGNUM *m", although we can't actually
874 change this in the header file before 0.9.9. It allows
875 RSA_setup_blinding() to use BN_with_flags() on the modulus to
876 enable BN_FLG_CONSTTIME.
878 [Matthew D Wood (Intel Corp)]
880 *) In the SSL/TLS server implementation, be strict about session ID
881 context matching (which matters if an application uses a single
882 external cache for different purposes). Previously,
883 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
884 set. This did ensure strict client verification, but meant that,
885 with applications using a single external cache for quite
886 different requirements, clients could circumvent ciphersuite
887 restrictions for a given session ID context by starting a session
888 in a different context.
891 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
892 a ciphersuite string such as "DEFAULT:RSA" cannot enable
893 authentication-only ciphersuites.
896 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
898 *) Since AES128 and AES256 (and similarly Camellia128 and
899 Camellia256) share a single mask bit in the logic of
900 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
901 kludge to work properly if AES128 is available and AES256 isn't
902 (or if Camellia128 is available and Camellia256 isn't).
905 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
906 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
907 When a point or a seed is encoded in a BIT STRING, we need to
908 prevent the removal of trailing zero bits to get the proper DER
909 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
910 of a NamedBitList, for which trailing 0 bits need to be removed.)
913 *) Have SSL/TLS server implementation tolerate "mismatched" record
914 protocol version while receiving ClientHello even if the
915 ClientHello is fragmented. (The server can't insist on the
916 particular protocol version it has chosen before the ServerHello
917 message has informed the client about his choice.)
920 *) Add RFC 3779 support.
921 [Rob Austein for ARIN, Ben Laurie]
923 *) Load error codes if they are not already present instead of using a
924 static variable. This allows them to be cleanly unloaded and reloaded.
925 Improve header file function name parsing.
928 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
929 or CAPABILITY handshake as required by RFCs.
932 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
934 *) Introduce limits to prevent malicious keys being able to
935 cause a denial of service. (CVE-2006-2940)
936 [Steve Henson, Bodo Moeller]
938 *) Fix ASN.1 parsing of certain invalid structures that can result
939 in a denial of service. (CVE-2006-2937) [Steve Henson]
941 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
942 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
944 *) Fix SSL client code which could crash if connecting to a
945 malicious SSLv2 server. (CVE-2006-4343)
946 [Tavis Ormandy and Will Drewry, Google Security Team]
948 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
949 match only those. Before that, "AES256-SHA" would be interpreted
950 as a pattern and match "AES128-SHA" too (since AES128-SHA got
951 the same strength classification in 0.9.7h) as we currently only
952 have a single AES bit in the ciphersuite description bitmap.
953 That change, however, also applied to ciphersuite strings such as
954 "RC4-MD5" that intentionally matched multiple ciphersuites --
955 namely, SSL 2.0 ciphersuites in addition to the more common ones
956 from SSL 3.0/TLS 1.0.
958 So we change the selection algorithm again: Naming an explicit
959 ciphersuite selects this one ciphersuite, and any other similar
960 ciphersuite (same bitmap) from *other* protocol versions.
961 Thus, "RC4-MD5" again will properly select both the SSL 2.0
962 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
964 Since SSL 2.0 does not have any ciphersuites for which the
965 128/256 bit distinction would be relevant, this works for now.
966 The proper fix will be to use different bits for AES128 and
967 AES256, which would have avoided the problems from the beginning;
968 however, bits are scarce, so we can only do this in a new release
969 (not just a patchlevel) when we can change the SSL_CIPHER
970 definition to split the single 'unsigned long mask' bitmap into
971 multiple values to extend the available space.
975 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
977 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
978 (CVE-2006-4339) [Ben Laurie and Google Security Team]
980 *) Add AES IGE and biIGE modes.
983 *) Change the Unix randomness entropy gathering to use poll() when
984 possible instead of select(), since the latter has some
985 undesirable limitations.
986 [Darryl Miles via Richard Levitte and Bodo Moeller]
988 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
989 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
990 cannot be implicitly activated as part of, e.g., the "AES" alias.
991 However, please upgrade to OpenSSL 0.9.9[-dev] for
992 non-experimental use of the ECC ciphersuites to get TLS extension
993 support, which is required for curve and point format negotiation
994 to avoid potential handshake problems.
997 *) Disable rogue ciphersuites:
999 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1000 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1001 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1003 The latter two were purportedly from
1004 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1007 Also deactivate the remaining ciphersuites from
1008 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1009 unofficial, and the ID has long expired.
1012 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1013 dual-core machines) and other potential thread-safety issues.
1016 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1017 versions), which is now available for royalty-free use
1018 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1019 Also, add Camellia TLS ciphersuites from RFC 4132.
1021 To minimize changes between patchlevels in the OpenSSL 0.9.8
1022 series, Camellia remains excluded from compilation unless OpenSSL
1023 is configured with 'enable-camellia'.
1026 *) Disable the padding bug check when compression is in use. The padding
1027 bug check assumes the first packet is of even length, this is not
1028 necessarily true if compresssion is enabled and can result in false
1029 positives causing handshake failure. The actual bug test is ancient
1030 code so it is hoped that implementations will either have fixed it by
1031 now or any which still have the bug do not support compression.
1034 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1036 *) When applying a cipher rule check to see if string match is an explicit
1037 cipher suite and only match that one cipher suite if it is.
1040 *) Link in manifests for VC++ if needed.
1041 [Austin Ziegler <halostatue@gmail.com>]
1043 *) Update support for ECC-based TLS ciphersuites according to
1044 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1045 TLS extensions, which are supported starting with the 0.9.9
1046 branch, not in the OpenSSL 0.9.8 branch).
1049 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1050 opaque EVP_CIPHER_CTX handling.
1053 *) Fixes and enhancements to zlib compression code. We now only use
1054 "zlib1.dll" and use the default __cdecl calling convention on Win32
1055 to conform with the standards mentioned here:
1056 http://www.zlib.net/DLL_FAQ.txt
1057 Static zlib linking now works on Windows and the new --with-zlib-include
1058 --with-zlib-lib options to Configure can be used to supply the location
1059 of the headers and library. Gracefully handle case where zlib library
1063 *) Several fixes and enhancements to the OID generation code. The old code
1064 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1065 handle numbers larger than ULONG_MAX, truncated printing and had a
1066 non standard OBJ_obj2txt() behaviour.
1069 *) Add support for building of engines under engine/ as shared libraries
1070 under VC++ build system.
1073 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1074 Hopefully, we will not see any false combination of paths any more.
1077 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1079 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1080 (part of SSL_OP_ALL). This option used to disable the
1081 countermeasure against man-in-the-middle protocol-version
1082 rollback in the SSL 2.0 server implementation, which is a bad
1083 idea. (CVE-2005-2969)
1085 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1086 for Information Security, National Institute of Advanced Industrial
1087 Science and Technology [AIST], Japan)]
1089 *) Add two function to clear and return the verify parameter flags.
1092 *) Keep cipherlists sorted in the source instead of sorting them at
1093 runtime, thus removing the need for a lock.
1096 *) Avoid some small subgroup attacks in Diffie-Hellman.
1097 [Nick Mathewson and Ben Laurie]
1099 *) Add functions for well-known primes.
1102 *) Extended Windows CE support.
1103 [Satoshi Nakamura and Andy Polyakov]
1105 *) Initialize SSL_METHOD structures at compile time instead of during
1106 runtime, thus removing the need for a lock.
1109 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1110 attempting to decrypt each encrypted key in turn. Add support to
1114 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1116 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1119 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1122 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1123 key into the same file any more.
1126 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1129 *) Add -utf8 command line and config file option to 'ca'.
1130 [Stefan <stf@udoma.org]
1132 *) Removed the macro des_crypt(), as it seems to conflict with some
1133 libraries. Use DES_crypt().
1136 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1137 involves renaming the source and generated shared-libs for
1138 both. The engines will accept the corrected or legacy ids
1139 ('ncipher' and '4758_cca' respectively) when binding. NB,
1140 this only applies when building 'shared'.
1141 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1143 *) Add attribute functions to EVP_PKEY structure. Modify
1144 PKCS12_create() to recognize a CSP name attribute and
1145 use it. Make -CSP option work again in pkcs12 utility.
1148 *) Add new functionality to the bn blinding code:
1149 - automatic re-creation of the BN_BLINDING parameters after
1150 a fixed number of uses (currently 32)
1151 - add new function for parameter creation
1152 - introduce flags to control the update behaviour of the
1153 BN_BLINDING parameters
1154 - hide BN_BLINDING structure
1155 Add a second BN_BLINDING slot to the RSA structure to improve
1156 performance when a single RSA object is shared among several
1160 *) Add support for DTLS.
1161 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1163 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1164 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1167 *) Remove buggy and incompletet DH cert support from
1168 ssl/ssl_rsa.c and ssl/s3_both.c
1171 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1172 the apps/openssl applications.
1175 *) Compile clean with "-Wall -Wmissing-prototypes
1176 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1177 DEBUG_SAFESTACK must also be set.
1180 *) Change ./Configure so that certain algorithms can be disabled by default.
1181 The new counterpiece to "no-xxx" is "enable-xxx".
1183 The patented RC5 and MDC2 algorithms will now be disabled unless
1184 "enable-rc5" and "enable-mdc2", respectively, are specified.
1186 (IDEA remains enabled despite being patented. This is because IDEA
1187 is frequently required for interoperability, and there is no license
1188 fee for non-commercial use. As before, "no-idea" can be used to
1189 avoid this algorithm.)
1193 *) Add processing of proxy certificates (see RFC 3820). This work was
1194 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1195 EGEE (Enabling Grids for E-science in Europe).
1198 *) RC4 performance overhaul on modern architectures/implementations, such
1199 as Intel P4, IA-64 and AMD64.
1202 *) New utility extract-section.pl. This can be used specify an alternative
1203 section number in a pod file instead of having to treat each file as
1204 a separate case in Makefile. This can be done by adding two lines to the
1207 =for comment openssl_section:XXX
1209 The blank line is mandatory.
1213 *) New arguments -certform, -keyform and -pass for s_client and s_server
1214 to allow alternative format key and certificate files and passphrase
1218 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1219 update associated structures and add various utility functions.
1221 Add new policy related verify parameters, include policy checking in
1222 standard verify code. Enhance 'smime' application with extra parameters
1223 to support policy checking and print out.
1226 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1227 Nehemiah processors. These extensions support AES encryption in hardware
1228 as well as RNG (though RNG support is currently disabled).
1229 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1231 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1234 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1235 [Andy Polyakov and a number of other people]
1237 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1238 implementation contributed by IBM.
1239 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1241 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1242 exponent rather than 'unsigned long'. There is a corresponding change to
1243 the new 'rsa_keygen' element of the RSA_METHOD structure.
1244 [Jelte Jansen, Geoff Thorpe]
1246 *) Functionality for creating the initial serial number file is now
1247 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1249 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1250 number file to 1, which is bound to cause problems. To avoid
1251 the problems while respecting compatibility between different 0.9.7
1252 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1253 CA.pl for serial number initialization. With the new release 0.9.8,
1254 we can fix the problem directly in the 'ca' utility.)
1257 *) Reduced header interdepencies by declaring more opaque objects in
1258 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1259 give fewer recursive includes, which could break lazy source code - so
1260 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1261 developers should define this symbol when building and using openssl to
1262 ensure they track the recommended behaviour, interfaces, [etc], but
1263 backwards-compatible behaviour prevails when this isn't defined.
1266 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1269 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1270 This will generate a random key of the appropriate length based on the
1271 cipher context. The EVP_CIPHER can provide its own random key generation
1272 routine to support keys of a specific form. This is used in the des and
1273 3des routines to generate a key of the correct parity. Update S/MIME
1274 code to use new functions and hence generate correct parity DES keys.
1275 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1276 valid (weak or incorrect parity).
1279 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1280 as looking them up. This is useful when the verified structure may contain
1281 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1282 present unless the new PKCS7_NO_CRL flag is asserted.
1285 *) Extend ASN1 oid configuration module. It now additionally accepts the
1288 shortName = some long name, 1.2.3.4
1291 *) Reimplemented the BN_CTX implementation. There is now no more static
1292 limitation on the number of variables it can handle nor the depth of the
1293 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1294 information can now expand as required, and rather than having a single
1295 static array of bignums, BN_CTX now uses a linked-list of such arrays
1296 allowing it to expand on demand whilst maintaining the usefulness of
1297 BN_CTX's "bundling".
1300 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1301 to allow all RSA operations to function using a single BN_CTX.
1304 *) Preliminary support for certificate policy evaluation and checking. This
1305 is initially intended to pass the tests outlined in "Conformance Testing
1306 of Relying Party Client Certificate Path Processing Logic" v1.07.
1309 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1310 remained unused and not that useful. A variety of other little bignum
1311 tweaks and fixes have also been made continuing on from the audit (see
1315 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1316 associated ASN1, EVP and SSL functions and old ASN1 macros.
1319 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1320 and this should never fail. So the return value from the use of
1321 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1322 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1325 *) BN_CTX_get() should return zero-valued bignums, providing the same
1326 initialised value as BN_new().
1327 [Geoff Thorpe, suggested by Ulf Möller]
1329 *) Support for inhibitAnyPolicy certificate extension.
1332 *) An audit of the BIGNUM code is underway, for which debugging code is
1333 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1334 is considered valid when processing BIGNUMs, and causes execution to
1335 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1336 further steps are taken to deliberately pollute unused data in BIGNUM
1337 structures to try and expose faulty code further on. For now, openssl will
1338 (in its default mode of operation) continue to tolerate the inconsistent
1339 forms that it has tolerated in the past, but authors and packagers should
1340 consider trying openssl and their own applications when compiled with
1341 these debugging symbols defined. It will help highlight potential bugs in
1342 their own code, and will improve the test coverage for OpenSSL itself. At
1343 some point, these tighter rules will become openssl's default to improve
1344 maintainability, though the assert()s and other overheads will remain only
1345 in debugging configurations. See bn.h for more details.
1346 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1348 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1349 that can only be obtained through BN_CTX_new() (which implicitly
1350 initialises it). The presence of this function only made it possible
1351 to overwrite an existing structure (and cause memory leaks).
1354 *) Because of the callback-based approach for implementing LHASH as a
1355 template type, lh_insert() adds opaque objects to hash-tables and
1356 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1357 to clean up those corresponding objects before destroying the hash table
1358 (and losing the object pointers). So some over-zealous constifications in
1359 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1360 objects as "const" and the lh_doall[_arg] callback wrappers are not
1361 prototyped to have "const" restrictions on the object pointers they are
1362 given (and so aren't required to cast them away any more).
1365 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1366 (speed) prefers to use its own implementation. The two implementations
1367 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1368 its object type properly exposed (MS_TM) instead of casting to/from "char
1369 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1370 aren't necessarily the greatest nomenclatures - but this is what was used
1371 internally to the implementation so I've used that for now.
1374 *) Ensure that deprecated functions do not get compiled when
1375 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1376 the self-tests were still using deprecated key-generation functions so
1377 these have been updated also.
1380 *) Reorganise PKCS#7 code to separate the digest location functionality
1381 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1382 New function PKCS7_set_digest() to set the digest type for PKCS#7
1383 digestedData type. Add additional code to correctly generate the
1384 digestedData type and add support for this type in PKCS7 initialization
1388 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1389 structure of type "other".
1392 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1393 sure the loop does correctly stop and breaking ("division by zero")
1394 modulus operations are not performed. The (pre-generated) prime
1395 table crypto/bn/bn_prime.h was already correct, but it could not be
1396 re-generated on some platforms because of the "division by zero"
1397 situation in the script.
1398 [Ralf S. Engelschall]
1400 *) Update support for ECC-based TLS ciphersuites according to
1401 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1402 SHA-1 now is only used for "small" curves (where the
1403 representation of a field element takes up to 24 bytes); for
1404 larger curves, the field element resulting from ECDH is directly
1405 used as premaster secret.
1406 [Douglas Stebila (Sun Microsystems Laboratories)]
1408 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1409 curve secp160r1 to the tests.
1410 [Douglas Stebila (Sun Microsystems Laboratories)]
1412 *) Add the possibility to load symbols globally with DSO.
1413 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1415 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1416 control of the error stack.
1419 *) Add support for STORE in ENGINE.
1422 *) Add the STORE type. The intention is to provide a common interface
1423 to certificate and key stores, be they simple file-based stores, or
1424 HSM-type store, or LDAP stores, or...
1425 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1428 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1429 pass a list of arguments to any function as well as provide a way
1430 for a function to pass data back to the caller.
1433 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1434 works like BUF_strdup() but can be used to duplicate a portion of
1435 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1439 *) Add the function sk_find_ex() which works like sk_find(), but will
1440 return an index to an element even if an exact match couldn't be
1441 found. The index is guaranteed to point at the element where the
1442 searched-for key would be inserted to preserve sorting order.
1445 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1446 takes an extra flags argument for optional functionality. Currently,
1447 the following flags are defined:
1449 OBJ_BSEARCH_VALUE_ON_NOMATCH
1450 This one gets OBJ_bsearch_ex() to return a pointer to the first
1451 element where the comparing function returns a negative or zero
1454 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1455 This one gets OBJ_bsearch_ex() to return a pointer to the first
1456 element where the comparing function returns zero. This is useful
1457 if there are more than one element where the comparing function
1461 *) Make it possible to create self-signed certificates with 'openssl ca'
1462 in such a way that the self-signed certificate becomes part of the
1463 CA database and uses the same mechanisms for serial number generation
1464 as all other certificate signing. The new flag '-selfsign' enables
1465 this functionality. Adapt CA.sh and CA.pl.in.
1468 *) Add functionality to check the public key of a certificate request
1469 against a given private. This is useful to check that a certificate
1470 request can be signed by that key (self-signing).
1473 *) Make it possible to have multiple active certificates with the same
1474 subject in the CA index file. This is done only if the keyword
1475 'unique_subject' is set to 'no' in the main CA section (default
1476 if 'CA_default') of the configuration file. The value is saved
1477 with the database itself in a separate index attribute file,
1478 named like the index file with '.attr' appended to the name.
1481 *) Generate muti valued AVAs using '+' notation in config files for
1485 *) Support for nameConstraints certificate extension.
1488 *) Support for policyConstraints certificate extension.
1491 *) Support for policyMappings certificate extension.
1494 *) Make sure the default DSA_METHOD implementation only uses its
1495 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1496 and change its own handlers to be NULL so as to remove unnecessary
1497 indirection. This lets alternative implementations fallback to the
1498 default implementation more easily.
1501 *) Support for directoryName in GeneralName related extensions
1505 *) Make it possible to link applications using Makefile.shared.
1506 Make that possible even when linking against static libraries!
1509 *) Support for single pass processing for S/MIME signing. This now
1510 means that S/MIME signing can be done from a pipe, in addition
1511 cleartext signing (multipart/signed type) is effectively streaming
1512 and the signed data does not need to be all held in memory.
1514 This is done with a new flag PKCS7_STREAM. When this flag is set
1515 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1516 is done after the data is output (and digests calculated) in
1517 SMIME_write_PKCS7().
1520 *) Add full support for -rpath/-R, both in shared libraries and
1521 applications, at least on the platforms where it's known how
1525 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1526 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1527 will now compute a table of multiples of the generator that
1528 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1529 faster (notably in the case of a single point multiplication,
1530 scalar * generator).
1531 [Nils Larsch, Bodo Moeller]
1533 *) IPv6 support for certificate extensions. The various extensions
1534 which use the IP:a.b.c.d can now take IPv6 addresses using the
1535 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1539 *) Added an ENGINE that implements RSA by performing private key
1540 exponentiations with the GMP library. The conversions to and from
1541 GMP's mpz_t format aren't optimised nor are any montgomery forms
1542 cached, and on x86 it appears OpenSSL's own performance has caught up.
1543 However there are likely to be other architectures where GMP could
1544 provide a boost. This ENGINE is not built in by default, but it can be
1545 specified at Configure time and should be accompanied by the necessary
1546 linker additions, eg;
1547 ./config -DOPENSSL_USE_GMP -lgmp
1550 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1551 testing availability of engines with "-t" - the old behaviour is
1552 produced by increasing the feature's verbosity with "-tt".
1555 *) ECDSA routines: under certain error conditions uninitialized BN objects
1556 could be freed. Solution: make sure initialization is performed early
1557 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1561 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1562 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1563 software implementations. For DSA and DH, parameter generation can
1564 also be overriden by providing the appropriate method callbacks.
1567 *) Change the "progress" mechanism used in key-generation and
1568 primality testing to functions that take a new BN_GENCB pointer in
1569 place of callback/argument pairs. The new API functions have "_ex"
1570 postfixes and the older functions are reimplemented as wrappers for
1571 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1572 declarations of the old functions to help (graceful) attempts to
1573 migrate to the new functions. Also, the new key-generation API
1574 functions operate on a caller-supplied key-structure and return
1575 success/failure rather than returning a key or NULL - this is to
1576 help make "keygen" another member function of RSA_METHOD etc.
1578 Example for using the new callback interface:
1580 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1584 BN_GENCB_set(&my_cb, my_callback, my_arg);
1586 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1587 /* For the meaning of a, b in calls to my_callback(), see the
1588 * documentation of the function that calls the callback.
1589 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1590 * my_callback should return 1 if it wants BN_is_prime_ex()
1591 * to continue, or 0 to stop.
1596 *) Change the ZLIB compression method to be stateful, and make it
1597 available to TLS with the number defined in
1598 draft-ietf-tls-compression-04.txt.
1601 *) Add the ASN.1 structures and functions for CertificatePair, which
1602 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1604 CertificatePair ::= SEQUENCE {
1605 forward [0] Certificate OPTIONAL,
1606 reverse [1] Certificate OPTIONAL,
1607 -- at least one of the pair shall be present -- }
1609 Also implement the PEM functions to read and write certificate
1610 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1612 This needed to be defined, mostly for the sake of the LDAP
1613 attribute crossCertificatePair, but may prove useful elsewhere as
1617 *) Make it possible to inhibit symlinking of shared libraries in
1618 Makefile.shared, for Cygwin's sake.
1621 *) Extend the BIGNUM API by creating a function
1622 void BN_set_negative(BIGNUM *a, int neg);
1623 and a macro that behave like
1624 int BN_is_negative(const BIGNUM *a);
1626 to avoid the need to access 'a->neg' directly in applications.
1629 *) Implement fast modular reduction for pseudo-Mersenne primes
1630 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1631 EC_GROUP_new_curve_GFp() will now automatically use this
1633 [Nils Larsch <nla@trustcenter.de>]
1635 *) Add new lock type (CRYPTO_LOCK_BN).
1638 *) Change the ENGINE framework to automatically load engines
1639 dynamically from specific directories unless they could be
1640 found to already be built in or loaded. Move all the
1641 current engines except for the cryptodev one to a new
1643 The engines in engines/ are built as shared libraries if
1644 the "shared" options was given to ./Configure or ./config.
1645 Otherwise, they are inserted in libcrypto.a.
1646 /usr/local/ssl/engines is the default directory for dynamic
1647 engines, but that can be overriden at configure time through
1648 the usual use of --prefix and/or --openssldir, and at run
1649 time with the environment variable OPENSSL_ENGINES.
1650 [Geoff Thorpe and Richard Levitte]
1652 *) Add Makefile.shared, a helper makefile to build shared
1653 libraries. Addapt Makefile.org.
1656 *) Add version info to Win32 DLLs.
1657 [Peter 'Luna' Runestig" <peter@runestig.com>]
1659 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1660 can be added using this API to created arbitrary PKCS#12
1661 files while avoiding the low level API.
1663 New options to PKCS12_create(), key or cert can be NULL and
1664 will then be omitted from the output file. The encryption
1665 algorithm NIDs can be set to -1 for no encryption, the mac
1666 iteration count can be set to 0 to omit the mac.
1668 Enhance pkcs12 utility by making the -nokeys and -nocerts
1669 options work when creating a PKCS#12 file. New option -nomac
1670 to omit the mac, NONE can be set for an encryption algorithm.
1671 New code is modified to use the enhanced PKCS12_create()
1672 instead of the low level API.
1675 *) Extend ASN1 encoder to support indefinite length constructed
1676 encoding. This can output sequences tags and octet strings in
1677 this form. Modify pk7_asn1.c to support indefinite length
1678 encoding. This is experimental and needs additional code to
1679 be useful, such as an ASN1 bio and some enhanced streaming
1682 Extend template encode functionality so that tagging is passed
1683 down to the template encoder.
1686 *) Let 'openssl req' fail if an argument to '-newkey' is not
1687 recognized instead of using RSA as a default.
1690 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1691 As these are not official, they are not included in "ALL";
1692 the "ECCdraft" ciphersuite group alias can be used to select them.
1693 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1695 *) Add ECDH engine support.
1696 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1698 *) Add ECDH in new directory crypto/ecdh/.
1699 [Douglas Stebila (Sun Microsystems Laboratories)]
1701 *) Let BN_rand_range() abort with an error after 100 iterations
1702 without success (which indicates a broken PRNG).
1705 *) Change BN_mod_sqrt() so that it verifies that the input value
1706 is really the square of the return value. (Previously,
1707 BN_mod_sqrt would show GIGO behaviour.)
1710 *) Add named elliptic curves over binary fields from X9.62, SECG,
1711 and WAP/WTLS; add OIDs that were still missing.
1713 [Sheueling Chang Shantz and Douglas Stebila
1714 (Sun Microsystems Laboratories)]
1716 *) Extend the EC library for elliptic curves over binary fields
1717 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1720 EC_GF2m_simple_method
1724 EC_GROUP_new_curve_GF2m
1725 EC_GROUP_set_curve_GF2m
1726 EC_GROUP_get_curve_GF2m
1727 EC_POINT_set_affine_coordinates_GF2m
1728 EC_POINT_get_affine_coordinates_GF2m
1729 EC_POINT_set_compressed_coordinates_GF2m
1731 Point compression for binary fields is disabled by default for
1732 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1735 As binary polynomials are represented as BIGNUMs, various members
1736 of the EC_GROUP and EC_POINT data structures can be shared
1737 between the implementations for prime fields and binary fields;
1738 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1739 are essentially identical to their ..._GFp counterparts.
1740 (For simplicity, the '..._GFp' prefix has been dropped from
1741 various internal method names.)
1743 An internal 'field_div' method (similar to 'field_mul' and
1744 'field_sqr') has been added; this is used only for binary fields.
1746 [Sheueling Chang Shantz and Douglas Stebila
1747 (Sun Microsystems Laboratories)]
1749 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1750 through methods ('mul', 'precompute_mult').
1752 The generic implementations (now internally called 'ec_wNAF_mul'
1753 and 'ec_wNAF_precomputed_mult') remain the default if these
1754 methods are undefined.
1756 [Sheueling Chang Shantz and Douglas Stebila
1757 (Sun Microsystems Laboratories)]
1759 *) New function EC_GROUP_get_degree, which is defined through
1760 EC_METHOD. For curves over prime fields, this returns the bit
1761 length of the modulus.
1763 [Sheueling Chang Shantz and Douglas Stebila
1764 (Sun Microsystems Laboratories)]
1766 *) New functions EC_GROUP_dup, EC_POINT_dup.
1767 (These simply call ..._new and ..._copy).
1769 [Sheueling Chang Shantz and Douglas Stebila
1770 (Sun Microsystems Laboratories)]
1772 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1773 Polynomials are represented as BIGNUMs (where the sign bit is not
1774 used) in the following functions [macros]:
1777 BN_GF2m_sub [= BN_GF2m_add]
1778 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1779 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1780 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1782 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1783 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1784 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1785 BN_GF2m_cmp [= BN_ucmp]
1787 (Note that only the 'mod' functions are actually for fields GF(2^m).
1788 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1790 For some functions, an the irreducible polynomial defining a
1791 field can be given as an 'unsigned int[]' with strictly
1792 decreasing elements giving the indices of those bits that are set;
1793 i.e., p[] represents the polynomial
1794 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1796 p[0] > p[1] > ... > p[k] = 0.
1797 This applies to the following functions:
1802 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1803 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1805 BN_GF2m_mod_sqrt_arr
1806 BN_GF2m_mod_solve_quad_arr
1810 Conversion can be performed by the following functions:
1815 bntest.c has additional tests for binary polynomial arithmetic.
1817 Two implementations for BN_GF2m_mod_div() are available.
1818 The default algorithm simply uses BN_GF2m_mod_inv() and
1819 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1820 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1821 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1823 [Sheueling Chang Shantz and Douglas Stebila
1824 (Sun Microsystems Laboratories)]
1826 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1827 functionality is disabled at compile-time.
1828 [Douglas Stebila <douglas.stebila@sun.com>]
1830 *) Change default behaviour of 'openssl asn1parse' so that more
1831 information is visible when viewing, e.g., a certificate:
1833 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1834 mode the content of non-printable OCTET STRINGs is output in a
1835 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1836 avoid the appearance of a printable string.
1837 [Nils Larsch <nla@trustcenter.de>]
1839 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1841 EC_GROUP_set_asn1_flag()
1842 EC_GROUP_get_asn1_flag()
1843 EC_GROUP_set_point_conversion_form()
1844 EC_GROUP_get_point_conversion_form()
1845 These control ASN1 encoding details:
1846 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1847 has been set to OPENSSL_EC_NAMED_CURVE.
1848 - Points are encoded in uncompressed form by default; options for
1849 asn1_for are as for point2oct, namely
1850 POINT_CONVERSION_COMPRESSED
1851 POINT_CONVERSION_UNCOMPRESSED
1852 POINT_CONVERSION_HYBRID
1854 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1857 EC_GROUP_get0_seed()
1858 EC_GROUP_get_seed_len()
1859 This is used only for ASN1 purposes (so far).
1860 [Nils Larsch <nla@trustcenter.de>]
1862 *) Add 'field_type' member to EC_METHOD, which holds the NID
1863 of the appropriate field type OID. The new function
1864 EC_METHOD_get_field_type() returns this value.
1865 [Nils Larsch <nla@trustcenter.de>]
1870 EC_POINT_point2hex()
1871 EC_POINT_hex2point()
1872 providing useful interfaces to EC_POINT_point2oct() and
1873 EC_POINT_oct2point().
1874 [Nils Larsch <nla@trustcenter.de>]
1876 *) Change internals of the EC library so that the functions
1877 EC_GROUP_set_generator()
1878 EC_GROUP_get_generator()
1879 EC_GROUP_get_order()
1880 EC_GROUP_get_cofactor()
1881 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1882 to methods, which would lead to unnecessary code duplication when
1883 adding different types of curves.
1884 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1886 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1887 arithmetic, and such that modified wNAFs are generated
1888 (which avoid length expansion in many cases).
1891 *) Add a function EC_GROUP_check_discriminant() (defined via
1892 EC_METHOD) that verifies that the curve discriminant is non-zero.
1894 Add a function EC_GROUP_check() that makes some sanity tests
1895 on a EC_GROUP, its generator and order. This includes
1896 EC_GROUP_check_discriminant().
1897 [Nils Larsch <nla@trustcenter.de>]
1899 *) Add ECDSA in new directory crypto/ecdsa/.
1901 Add applications 'openssl ecparam' and 'openssl ecdsa'
1902 (these are based on 'openssl dsaparam' and 'openssl dsa').
1904 ECDSA support is also included in various other files across the
1905 library. Most notably,
1906 - 'openssl req' now has a '-newkey ecdsa:file' option;
1907 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1908 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1909 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1910 them suitable for ECDSA where domain parameters must be
1911 extracted before the specific public key;
1912 - ECDSA engine support has been added.
1913 [Nils Larsch <nla@trustcenter.de>]
1915 *) Include some named elliptic curves, and add OIDs from X9.62,
1916 SECG, and WAP/WTLS. Each curve can be obtained from the new
1918 EC_GROUP_new_by_curve_name(),
1919 and the list of available named curves can be obtained with
1920 EC_get_builtin_curves().
1921 Also add a 'curve_name' member to EC_GROUP objects, which can be
1923 EC_GROUP_set_curve_name()
1924 EC_GROUP_get_curve_name()
1925 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1927 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1928 was actually never needed) and in BN_mul(). The removal in BN_mul()
1929 required a small change in bn_mul_part_recursive() and the addition
1930 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1931 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1932 bn_sub_words() and bn_add_words() except they take arrays with
1936 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1938 *) In the SSL/TLS server implementation, be strict about session ID
1939 context matching (which matters if an application uses a single
1940 external cache for different purposes). Previously,
1941 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1942 set. This did ensure strict client verification, but meant that,
1943 with applications using a single external cache for quite
1944 different requirements, clients could circumvent ciphersuite
1945 restrictions for a given session ID context by starting a session
1946 in a different context.
1949 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1951 *) Cleanse PEM buffers before freeing them since they may contain
1953 [Benjamin Bennett <ben@psc.edu>]
1955 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1956 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1957 authentication-only ciphersuites.
1960 *) Since AES128 and AES256 share a single mask bit in the logic of
1961 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1962 kludge to work properly if AES128 is available and AES256 isn't.
1965 *) Expand security boundary to match 1.1.1 module.
1968 *) Remove redundant features: hash file source, editing of test vectors
1969 modify fipsld to use external fips_premain.c signature.
1972 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1973 run algorithm test programs.
1976 *) Make algorithm test programs more tolerant of whitespace.
1979 *) Have SSL/TLS server implementation tolerate "mismatched" record
1980 protocol version while receiving ClientHello even if the
1981 ClientHello is fragmented. (The server can't insist on the
1982 particular protocol version it has chosen before the ServerHello
1983 message has informed the client about his choice.)
1986 *) Load error codes if they are not already present instead of using a
1987 static variable. This allows them to be cleanly unloaded and reloaded.
1990 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1992 *) Introduce limits to prevent malicious keys being able to
1993 cause a denial of service. (CVE-2006-2940)
1994 [Steve Henson, Bodo Moeller]
1996 *) Fix ASN.1 parsing of certain invalid structures that can result
1997 in a denial of service. (CVE-2006-2937) [Steve Henson]
1999 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2000 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2002 *) Fix SSL client code which could crash if connecting to a
2003 malicious SSLv2 server. (CVE-2006-4343)
2004 [Tavis Ormandy and Will Drewry, Google Security Team]
2006 *) Change ciphersuite string processing so that an explicit
2007 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2008 will no longer include "AES128-SHA"), and any other similar
2009 ciphersuite (same bitmap) from *other* protocol versions (so that
2010 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2011 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2012 changes from 0.9.8b and 0.9.8d.
2015 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2017 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2018 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2020 *) Change the Unix randomness entropy gathering to use poll() when
2021 possible instead of select(), since the latter has some
2022 undesirable limitations.
2023 [Darryl Miles via Richard Levitte and Bodo Moeller]
2025 *) Disable rogue ciphersuites:
2027 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2028 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2029 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2031 The latter two were purportedly from
2032 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2035 Also deactive the remaining ciphersuites from
2036 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2037 unofficial, and the ID has long expired.
2040 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2041 dual-core machines) and other potential thread-safety issues.
2044 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2046 *) Adapt fipsld and the build system to link against the validated FIPS
2047 module in FIPS mode.
2050 *) Fixes for VC++ 2005 build under Windows.
2053 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2054 from a Windows bash shell such as MSYS. It is autodetected from the
2055 "config" script when run from a VC++ environment. Modify standard VC++
2056 build to use fipscanister.o from the GNU make build.
2059 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2061 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2062 The value now differs depending on if you build for FIPS or not.
2063 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2064 safely run with a non-FIPSed libcrypto, as it may crash because of
2065 the difference induced by this change.
2068 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2070 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2071 (part of SSL_OP_ALL). This option used to disable the
2072 countermeasure against man-in-the-middle protocol-version
2073 rollback in the SSL 2.0 server implementation, which is a bad
2074 idea. (CVE-2005-2969)
2076 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2077 for Information Security, National Institute of Advanced Industrial
2078 Science and Technology [AIST], Japan)]
2080 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2081 mainly for FIPS compliance and not fully integrated at this stage.
2084 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2085 the exponentiation using a fixed-length exponent. (Otherwise,
2086 the information leaked through timing could expose the secret key
2087 after many signatures; cf. Bleichenbacher's attack on DSA with
2091 *) Make a new fixed-window mod_exp implementation the default for
2092 RSA, DSA, and DH private-key operations so that the sequence of
2093 squares and multiplies and the memory access pattern are
2094 independent of the particular secret key. This will mitigate
2095 cache-timing and potential related attacks.
2097 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2098 and this is automatically used by BN_mod_exp_mont() if the new flag
2099 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2100 will use this BN flag for private exponents unless the flag
2101 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2102 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2104 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2106 *) Change the client implementation for SSLv23_method() and
2107 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2108 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2109 (Previously, the SSL 2.0 backwards compatible Client Hello
2110 message format would be used even with SSL_OP_NO_SSLv2.)
2113 *) Add support for smime-type MIME parameter in S/MIME messages which some
2117 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2118 a threadsafe manner. Modify rsa code to use new function and add calls
2119 to dsa and dh code (which had race conditions before).
2122 *) Include the fixed error library code in the C error file definitions
2123 instead of fixing them up at runtime. This keeps the error code
2124 structures constant.
2127 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2129 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2132 *) Fixes for newer kerberos headers. NB: the casts are needed because
2133 the 'length' field is signed on one version and unsigned on another
2134 with no (?) obvious way to tell the difference, without these VC++
2135 complains. Also the "definition" of FAR (blank) is no longer included
2136 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2137 some needed definitions.
2140 *) Undo Cygwin change.
2143 *) Added support for proxy certificates according to RFC 3820.
2144 Because they may be a security thread to unaware applications,
2145 they must be explicitely allowed in run-time. See
2146 docs/HOWTO/proxy_certificates.txt for further information.
2149 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2151 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2152 server and client random values. Previously
2153 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2154 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2156 This change has negligible security impact because:
2158 1. Server and client random values still have 24 bytes of pseudo random
2161 2. Server and client random values are sent in the clear in the initial
2164 3. The master secret is derived using the premaster secret (48 bytes in
2165 size for static RSA ciphersuites) as well as client server and random
2168 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2171 [Stephen Henson, reported by UK NISCC]
2173 *) Use Windows randomness collection on Cygwin.
2176 *) Fix hang in EGD/PRNGD query when communication socket is closed
2177 prematurely by EGD/PRNGD.
2178 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2180 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2183 *) Back-port of selected performance improvements from development
2184 branch, as well as improved support for PowerPC platforms.
2187 *) Add lots of checks for memory allocation failure, error codes to indicate
2188 failure and freeing up memory if a failure occurs.
2189 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2191 *) Add new -passin argument to dgst.
2194 *) Perform some character comparisons of different types in X509_NAME_cmp:
2195 this is needed for some certificates that reencode DNs into UTF8Strings
2196 (in violation of RFC3280) and can't or wont issue name rollover
2200 *) Make an explicit check during certificate validation to see that
2201 the CA setting in each certificate on the chain is correct. As a
2202 side effect always do the following basic checks on extensions,
2203 not just when there's an associated purpose to the check:
2205 - if there is an unhandled critical extension (unless the user
2206 has chosen to ignore this fault)
2207 - if the path length has been exceeded (if one is set at all)
2208 - that certain extensions fit the associated purpose (if one has
2212 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2214 *) Avoid a race condition when CRLs are checked in a multi threaded
2215 environment. This would happen due to the reordering of the revoked
2216 entries during signature checking and serial number lookup. Now the
2217 encoding is cached and the serial number sort performed under a lock.
2218 Add new STACK function sk_is_sorted().
2221 *) Add Delta CRL to the extension code.
2224 *) Various fixes to s3_pkt.c so alerts are sent properly.
2225 [David Holmes <d.holmes@f5.com>]
2227 *) Reduce the chances of duplicate issuer name and serial numbers (in
2228 violation of RFC3280) using the OpenSSL certificate creation utilities.
2229 This is done by creating a random 64 bit value for the initial serial
2230 number when a serial number file is created or when a self signed
2231 certificate is created using 'openssl req -x509'. The initial serial
2232 number file is created using 'openssl x509 -next_serial' in CA.pl
2233 rather than being initialized to 1.
2236 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2238 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2239 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2240 [Joe Orton, Steve Henson]
2242 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2244 [Joe Orton, Steve Henson]
2246 *) Make it possible to have multiple active certificates with the same
2247 subject in the CA index file. This is done only if the keyword
2248 'unique_subject' is set to 'no' in the main CA section (default
2249 if 'CA_default') of the configuration file. The value is saved
2250 with the database itself in a separate index attribute file,
2251 named like the index file with '.attr' appended to the name.
2254 *) X509 verify fixes. Disable broken certificate workarounds when
2255 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2256 keyUsage extension present. Don't accept CRLs with unhandled critical
2257 extensions: since verify currently doesn't process CRL extensions this
2258 rejects a CRL with *any* critical extensions. Add new verify error codes
2262 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2263 A clarification of RFC2560 will require the use of OCTET STRINGs and
2264 some implementations cannot handle the current raw format. Since OpenSSL
2265 copies and compares OCSP nonces as opaque blobs without any attempt at
2266 parsing them this should not create any compatibility issues.
2269 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2270 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2271 this HMAC (and other) operations are several times slower than OpenSSL
2275 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2276 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2278 *) Use the correct content when signing type "other".
2281 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2283 *) Fix various bugs revealed by running the NISCC test suite:
2285 Stop out of bounds reads in the ASN1 code when presented with
2286 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2288 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2290 If verify callback ignores invalid public key errors don't try to check
2291 certificate signature with the NULL public key.
2295 *) New -ignore_err option in ocsp application to stop the server
2296 exiting on the first error in a request.
2299 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2300 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2304 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2305 extra data after the compression methods not only for TLS 1.0
2306 but also for SSL 3.0 (as required by the specification).
2307 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2309 *) Change X509_certificate_type() to mark the key as exported/exportable
2310 when it's 512 *bits* long, not 512 bytes.
2313 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2314 blocks during encryption.
2317 *) Various fixes to base64 BIO and non blocking I/O. On write
2318 flushes were not handled properly if the BIO retried. On read
2319 data was not being buffered properly and had various logic bugs.
2320 This also affects blocking I/O when the data being decoded is a
2324 *) Various S/MIME bugfixes and compatibility changes:
2325 output correct application/pkcs7 MIME type if
2326 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2327 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2328 of files as .eml work). Correctly handle very long lines in MIME
2332 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2334 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2335 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2336 a protocol version number mismatch like a decryption error
2337 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2340 *) Turn on RSA blinding by default in the default implementation
2341 to avoid a timing attack. Applications that don't want it can call
2342 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2343 They would be ill-advised to do so in most cases.
2344 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2346 *) Change RSA blinding code so that it works when the PRNG is not
2347 seeded (in this case, the secret RSA exponent is abused as
2348 an unpredictable seed -- if it is not unpredictable, there
2349 is no point in blinding anyway). Make RSA blinding thread-safe
2350 by remembering the creator's thread ID in rsa->blinding and
2351 having all other threads use local one-time blinding factors
2352 (this requires more computation than sharing rsa->blinding, but
2353 avoids excessive locking; and if an RSA object is not shared
2354 between threads, blinding will still be very fast).
2357 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2358 ENGINE as defaults for all supported algorithms irrespective of
2359 the 'flags' parameter. 'flags' is now honoured, so applications
2360 should make sure they are passing it correctly.
2363 *) Target "mingw" now allows native Windows code to be generated in
2364 the Cygwin environment as well as with the MinGW compiler.
2367 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2369 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2370 via timing by performing a MAC computation even if incorrrect
2371 block cipher padding has been found. This is a countermeasure
2372 against active attacks where the attacker has to distinguish
2373 between bad padding and a MAC verification error. (CVE-2003-0078)
2375 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2376 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2377 Martin Vuagnoux (EPFL, Ilion)]
2379 *) Make the no-err option work as intended. The intention with no-err
2380 is not to have the whole error stack handling routines removed from
2381 libcrypto, it's only intended to remove all the function name and
2382 reason texts, thereby removing some of the footprint that may not
2383 be interesting if those errors aren't displayed anyway.
2385 NOTE: it's still possible for any application or module to have it's
2386 own set of error texts inserted. The routines are there, just not
2387 used by default when no-err is given.
2390 *) Add support for FreeBSD on IA64.
2391 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2393 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2394 Kerberos function mit_des_cbc_cksum(). Before this change,
2395 the value returned by DES_cbc_cksum() was like the one from
2396 mit_des_cbc_cksum(), except the bytes were swapped.
2397 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2399 *) Allow an application to disable the automatic SSL chain building.
2400 Before this a rather primitive chain build was always performed in
2401 ssl3_output_cert_chain(): an application had no way to send the
2402 correct chain if the automatic operation produced an incorrect result.
2404 Now the chain builder is disabled if either:
2406 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2408 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2410 The reasoning behind this is that an application would not want the
2411 auto chain building to take place if extra chain certificates are
2412 present and it might also want a means of sending no additional
2413 certificates (for example the chain has two certificates and the
2417 *) Add the possibility to build without the ENGINE framework.
2418 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2420 *) Under Win32 gmtime() can return NULL: check return value in
2421 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2424 *) DSA routines: under certain error conditions uninitialized BN objects
2425 could be freed. Solution: make sure initialization is performed early
2426 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2427 Nils Larsch <nla@trustcenter.de> via PR#459)
2430 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2431 checked on reconnect on the client side, therefore session resumption
2432 could still fail with a "ssl session id is different" error. This
2433 behaviour is masked when SSL_OP_ALL is used due to
2434 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2435 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2436 followup to PR #377.
2439 *) IA-32 assembler support enhancements: unified ELF targets, support
2440 for SCO/Caldera platforms, fix for Cygwin shared build.
2443 *) Add support for FreeBSD on sparc64. As a consequence, support for
2444 FreeBSD on non-x86 processors is separate from x86 processors on
2445 the config script, much like the NetBSD support.
2446 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2448 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2450 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2453 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2454 code (06) was taken as the first octet of the session ID and the last
2455 octet was ignored consequently. As a result SSLv2 client side session
2456 caching could not have worked due to the session ID mismatch between
2458 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2462 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2463 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2467 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2468 seems that in spite of existing for more than a year, many application
2469 author have done nothing to provide the necessary callbacks, which
2470 means that this particular engine will not work properly anywhere.
2471 This is a very unfortunate situation which forces us, in the name
2472 of usability, to give the hw_ncipher.c a static lock, which is part
2474 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2475 appear in 0.9.8 or later. We EXPECT application authors to have
2476 dealt properly with this when 0.9.8 is released (unless we actually
2477 make such changes in the libcrypto locking code that changes will
2478 have to be made anyway).
2481 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2482 octets have been read, EOF or an error occurs. Without this change
2483 some truncated ASN1 structures will not produce an error.
2486 *) Disable Heimdal support, since it hasn't been fully implemented.
2487 Still give the possibility to force the use of Heimdal, but with
2488 warnings and a request that patches get sent to openssl-dev.
2491 *) Add the VC-CE target, introduce the WINCE sysname, and add
2492 INSTALL.WCE and appropriate conditionals to make it build.
2493 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2495 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2496 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2497 edit numbers of the version.
2498 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2500 *) Introduce safe string copy and catenation functions
2501 (BUF_strlcpy() and BUF_strlcat()).
2502 [Ben Laurie (CHATS) and Richard Levitte]
2504 *) Avoid using fixed-size buffers for one-line DNs.
2505 [Ben Laurie (CHATS)]
2507 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2508 resizing buffers containing secrets, and use where appropriate.
2509 [Ben Laurie (CHATS)]
2511 *) Avoid using fixed size buffers for configuration file location.
2512 [Ben Laurie (CHATS)]
2514 *) Avoid filename truncation for various CA files.
2515 [Ben Laurie (CHATS)]
2517 *) Use sizeof in preference to magic numbers.
2518 [Ben Laurie (CHATS)]
2520 *) Avoid filename truncation in cert requests.
2521 [Ben Laurie (CHATS)]
2523 *) Add assertions to check for (supposedly impossible) buffer
2525 [Ben Laurie (CHATS)]
2527 *) Don't cache truncated DNS entries in the local cache (this could
2528 potentially lead to a spoofing attack).
2529 [Ben Laurie (CHATS)]
2531 *) Fix various buffers to be large enough for hex/decimal
2532 representations in a platform independent manner.
2533 [Ben Laurie (CHATS)]
2535 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2536 resizing buffers containing secrets, and use where appropriate.
2537 [Ben Laurie (CHATS)]
2539 *) Add BIO_indent() to avoid much slightly worrying code to do
2541 [Ben Laurie (CHATS)]
2543 *) Convert sprintf()/BIO_puts() to BIO_printf().
2544 [Ben Laurie (CHATS)]
2546 *) buffer_gets() could terminate with the buffer only half
2548 [Ben Laurie (CHATS)]
2550 *) Add assertions to prevent user-supplied crypto functions from
2551 overflowing internal buffers by having large block sizes, etc.
2552 [Ben Laurie (CHATS)]
2554 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2556 [Ben Laurie (CHATS)]
2558 *) Eliminate unused copy of key in RC4.
2559 [Ben Laurie (CHATS)]
2561 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2562 [Ben Laurie (CHATS)]
2564 *) Fix off-by-one error in EGD path.
2565 [Ben Laurie (CHATS)]
2567 *) If RANDFILE path is too long, ignore instead of truncating.
2568 [Ben Laurie (CHATS)]
2570 *) Eliminate unused and incorrectly sized X.509 structure
2572 [Ben Laurie (CHATS)]
2574 *) Eliminate unused and dangerous function knumber().
2575 [Ben Laurie (CHATS)]
2577 *) Eliminate unused and dangerous structure, KSSL_ERR.
2578 [Ben Laurie (CHATS)]
2580 *) Protect against overlong session ID context length in an encoded
2581 session object. Since these are local, this does not appear to be
2583 [Ben Laurie (CHATS)]
2585 *) Change from security patch (see 0.9.6e below) that did not affect
2586 the 0.9.6 release series:
2588 Remote buffer overflow in SSL3 protocol - an attacker could
2589 supply an oversized master key in Kerberos-enabled versions.
2591 [Ben Laurie (CHATS)]
2593 *) Change the SSL kerb5 codes to match RFC 2712.
2596 *) Make -nameopt work fully for req and add -reqopt switch.
2597 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2599 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2600 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2602 *) Make sure tests can be performed even if the corresponding algorithms
2603 have been removed entirely. This was also the last step to make
2604 OpenSSL compilable with DJGPP under all reasonable conditions.
2605 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2607 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2608 to allow version independent disabling of normally unselected ciphers,
2609 which may be activated as a side-effect of selecting a single cipher.
2611 (E.g., cipher list string "RSA" enables ciphersuites that are left
2612 out of "ALL" because they do not provide symmetric encryption.
2613 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2614 [Lutz Jaenicke, Bodo Moeller]
2616 *) Add appropriate support for separate platform-dependent build
2617 directories. The recommended way to make a platform-dependent
2618 build directory is the following (tested on Linux), maybe with
2621 # Place yourself outside of the OpenSSL source tree. In
2622 # this example, the environment variable OPENSSL_SOURCE
2623 # is assumed to contain the absolute OpenSSL source directory.
2624 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2625 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2626 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2627 mkdir -p `dirname $F`
2628 ln -s $OPENSSL_SOURCE/$F $F
2631 To be absolutely sure not to disturb the source tree, a "make clean"
2632 is a good thing. If it isn't successfull, don't worry about it,
2633 it probably means the source directory is very clean.
2636 *) Make sure any ENGINE control commands make local copies of string
2637 pointers passed to them whenever necessary. Otherwise it is possible
2638 the caller may have overwritten (or deallocated) the original string
2639 data when a later ENGINE operation tries to use the stored values.
2640 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2642 *) Improve diagnostics in file reading and command-line digests.
2643 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2645 *) Add AES modes CFB and OFB to the object database. Correct an
2646 error in AES-CFB decryption.
2649 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2650 allows existing EVP_CIPHER_CTX structures to be reused after
2651 calling EVP_*Final(). This behaviour is used by encryption
2652 BIOs and some applications. This has the side effect that
2653 applications must explicitly clean up cipher contexts with
2654 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2657 *) Check the values of dna and dnb in bn_mul_recursive before calling
2658 bn_mul_comba (a non zero value means the a or b arrays do not contain
2659 n2 elements) and fallback to bn_mul_normal if either is not zero.
2662 *) Fix escaping of non-ASCII characters when using the -subj option
2663 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2666 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2667 form for "surname", serialNumber has no short form.
2668 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2669 therefore remove "mail" short name for "internet 7".
2670 The OID for unique identifiers in X509 certificates is
2671 x500UniqueIdentifier, not uniqueIdentifier.
2672 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2675 *) Add an "init" command to the ENGINE config module and auto initialize
2676 ENGINEs. Without any "init" command the ENGINE will be initialized
2677 after all ctrl commands have been executed on it. If init=1 the
2678 ENGINE is initailized at that point (ctrls before that point are run
2679 on the uninitialized ENGINE and after on the initialized one). If
2680 init=0 then the ENGINE will not be iniatialized at all.
2683 *) Fix the 'app_verify_callback' interface so that the user-defined
2684 argument is actually passed to the callback: In the
2685 SSL_CTX_set_cert_verify_callback() prototype, the callback
2686 declaration has been changed from
2689 int (*cb)(X509_STORE_CTX *,void *);
2690 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2691 i=s->ctx->app_verify_callback(&ctx)
2692 has been changed into
2693 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2695 To update applications using SSL_CTX_set_cert_verify_callback(),
2696 a dummy argument can be added to their callback functions.
2697 [D. K. Smetters <smetters@parc.xerox.com>]
2699 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2700 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2702 *) Add and OPENSSL_LOAD_CONF define which will cause
2703 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2704 This allows older applications to transparently support certain
2705 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2706 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2707 load the config file and OPENSSL_add_all_algorithms_conf() which will
2708 always load it have also been added.
2711 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2712 Adjust NIDs and EVP layer.
2713 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2715 *) Config modules support in openssl utility.
2717 Most commands now load modules from the config file,
2718 though in a few (such as version) this isn't done
2719 because it couldn't be used for anything.
2721 In the case of ca and req the config file used is
2722 the same as the utility itself: that is the -config
2723 command line option can be used to specify an
2727 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2728 use "openssl_conf" if filename is NULL use default openssl config file.
2731 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2732 config section name. Add a new flag to tolerate a missing config file
2733 and move code to CONF_modules_load_file().
2736 *) Support for crypto accelerator cards from Accelerated Encryption
2737 Processing, www.aep.ie. (Use engine 'aep')
2738 The support was copied from 0.9.6c [engine] and adapted/corrected
2739 to work with the new engine framework.
2740 [AEP Inc. and Richard Levitte]
2742 *) Support for SureWare crypto accelerator cards from Baltimore
2743 Technologies. (Use engine 'sureware')
2744 The support was copied from 0.9.6c [engine] and adapted
2745 to work with the new engine framework.
2748 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2749 make the newer ENGINE framework commands for the CHIL engine work.
2750 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2752 *) Make it possible to produce shared libraries on ReliantUNIX.
2753 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2755 *) Add the configuration target debug-linux-ppro.
2756 Make 'openssl rsa' use the general key loading routines
2757 implemented in apps.c, and make those routines able to
2758 handle the key format FORMAT_NETSCAPE and the variant
2760 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2762 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2763 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2765 *) Add -keyform to rsautl, and document -engine.
2766 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2768 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2769 BIO_R_NO_SUCH_FILE error code rather than the generic
2770 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2773 *) Add new functions
2775 ERR_peek_last_error_line
2776 ERR_peek_last_error_line_data.
2777 These are similar to
2780 ERR_peek_error_line_data,
2781 but report on the latest error recorded rather than the first one
2782 still in the error queue.
2783 [Ben Laurie, Bodo Moeller]
2785 *) default_algorithms option in ENGINE config module. This allows things
2787 default_algorithms = ALL
2788 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2791 *) Prelminary ENGINE config module.
2794 *) New experimental application configuration code.
2797 *) Change the AES code to follow the same name structure as all other
2798 symmetric ciphers, and behave the same way. Move everything to
2799 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2800 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2802 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2803 [Ben Laurie and Theo de Raadt]
2805 *) Add option to output public keys in req command.
2806 [Massimiliano Pala madwolf@openca.org]
2808 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2809 (up to about 10% better than before for P-192 and P-224).
2812 *) New functions/macros
2814 SSL_CTX_set_msg_callback(ctx, cb)
2815 SSL_CTX_set_msg_callback_arg(ctx, arg)
2816 SSL_set_msg_callback(ssl, cb)
2817 SSL_set_msg_callback_arg(ssl, arg)
2819 to request calling a callback function
2821 void cb(int write_p, int version, int content_type,
2822 const void *buf, size_t len, SSL *ssl, void *arg)
2824 whenever a protocol message has been completely received
2825 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2826 protocol version according to which the SSL library interprets
2827 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2828 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2829 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2830 specification (change_cipher_spec(20), alert(21), handshake(22)).
2831 'buf' and 'len' point to the actual message, 'ssl' to the
2832 SSL object, and 'arg' is the application-defined value set by
2833 SSL[_CTX]_set_msg_callback_arg().
2835 'openssl s_client' and 'openssl s_server' have new '-msg' options
2836 to enable a callback that displays all protocol messages.
2839 *) Change the shared library support so shared libraries are built as
2840 soon as the corresponding static library is finished, and thereby get
2841 openssl and the test programs linked against the shared library.
2842 This still only happens when the keyword "shard" has been given to
2843 the configuration scripts.
2845 NOTE: shared library support is still an experimental thing, and
2846 backward binary compatibility is still not guaranteed.
2847 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2849 *) Add support for Subject Information Access extension.
2850 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2852 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2853 additional bytes when new memory had to be allocated, not just
2854 when reusing an existing buffer.
2857 *) New command line and configuration option 'utf8' for the req command.
2858 This allows field values to be specified as UTF8 strings.
2861 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2862 runs for the former and machine-readable output for the latter.
2865 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2866 of the e-mail address in the DN (i.e., it will go into a certificate
2867 extension only). The new configuration file option 'email_in_dn = no'
2868 has the same effect.
2869 [Massimiliano Pala madwolf@openca.org]
2871 *) Change all functions with names starting with des_ to be starting
2872 with DES_ instead. Add wrappers that are compatible with libdes,
2873 but are named _ossl_old_des_*. Finally, add macros that map the
2874 des_* symbols to the corresponding _ossl_old_des_* if libdes
2875 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2876 desired, the des_* symbols will be mapped to DES_*, with one
2879 Since we provide two compatibility mappings, the user needs to
2880 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2881 compatibility is desired. The default (i.e., when that macro
2882 isn't defined) is OpenSSL 0.9.6c compatibility.
2884 There are also macros that enable and disable the support of old
2885 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2886 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2887 are defined, the default will apply: to support the old des routines.
2889 In either case, one must include openssl/des.h to get the correct
2890 definitions. Do not try to just include openssl/des_old.h, that
2893 NOTE: This is a major break of an old API into a new one. Software
2894 authors are encouraged to switch to the DES_ style functions. Some
2895 time in the future, des_old.h and the libdes compatibility functions
2896 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2897 default), and then completely removed.
2900 *) Test for certificates which contain unsupported critical extensions.
2901 If such a certificate is found during a verify operation it is
2902 rejected by default: this behaviour can be overridden by either
2903 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2904 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2905 X509_supported_extension() has also been added which returns 1 if a
2906 particular extension is supported.
2909 *) Modify the behaviour of EVP cipher functions in similar way to digests
2910 to retain compatibility with existing code.
2913 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2914 compatibility with existing code. In particular the 'ctx' parameter does
2915 not have to be to be initialized before the call to EVP_DigestInit() and
2916 it is tidied up after a call to EVP_DigestFinal(). New function
2917 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2918 EVP_MD_CTX_copy() changed to not require the destination to be
2919 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2920 requires the destination to be valid.
2922 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2923 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2926 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2927 so that complete 'Handshake' protocol structures are kept in memory
2928 instead of overwriting 'msg_type' and 'length' with 'body' data.
2931 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2932 [Massimo Santin via Richard Levitte]
2934 *) Major restructuring to the underlying ENGINE code. This includes
2935 reduction of linker bloat, separation of pure "ENGINE" manipulation
2936 (initialisation, etc) from functionality dealing with implementations
2937 of specific crypto iterfaces. This change also introduces integrated
2938 support for symmetric ciphers and digest implementations - so ENGINEs
2939 can now accelerate these by providing EVP_CIPHER and EVP_MD
2940 implementations of their own. This is detailed in crypto/engine/README
2941 as it couldn't be adequately described here. However, there are a few
2942 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2943 were changed in the original introduction of ENGINE code have now
2944 reverted back - the hooking from this code to ENGINE is now a good
2945 deal more passive and at run-time, operations deal directly with
2946 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2947 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2948 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2949 they were not being used by the framework as there is no concept of a
2950 BIGNUM_METHOD and they could not be generalised to the new
2951 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2952 ENGINE_cpy() has been removed as it cannot be consistently defined in
2956 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2959 *) Change mkdef.pl to sort symbols that get the same entry number,
2960 and make sure the automatically generated functions ERR_load_*
2961 become part of libeay.num as well.
2964 *) New function SSL_renegotiate_pending(). This returns true once
2965 renegotiation has been requested (either SSL_renegotiate() call
2966 or HelloRequest/ClientHello receveived from the peer) and becomes
2967 false once a handshake has been completed.
2968 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2969 sends a HelloRequest, but does not ensure that a handshake takes
2970 place. SSL_renegotiate_pending() is useful for checking if the
2971 client has followed the request.)
2974 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2975 By default, clients may request session resumption even during
2976 renegotiation (if session ID contexts permit); with this option,
2977 session resumption is possible only in the first handshake.
2979 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2980 more bits available for options that should not be part of
2981 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2984 *) Add some demos for certificate and certificate request creation.
2987 *) Make maximum certificate chain size accepted from the peer application
2988 settable (SSL*_get/set_max_cert_list()), as proposed by
2989 "Douglas E. Engert" <deengert@anl.gov>.
2992 *) Add support for shared libraries for Unixware-7
2993 (Boyd Lynn Gerber <gerberb@zenez.com>).
2996 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2997 be done prior to destruction. Use this to unload error strings from
2998 ENGINEs that load their own error strings. NB: This adds two new API
2999 functions to "get" and "set" this destroy handler in an ENGINE.
3002 *) Alter all existing ENGINE implementations (except "openssl" and
3003 "openbsd") to dynamically instantiate their own error strings. This
3004 makes them more flexible to be built both as statically-linked ENGINEs
3005 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3006 Also, add stub code to each that makes building them as self-contained
3007 shared-libraries easier (see README.ENGINE).
3010 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3011 implementations into applications that are completely implemented in
3012 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3013 commands that can be used to configure what shared-library to load and
3014 to control aspects of the way it is handled. Also, made an update to
3015 the README.ENGINE file that brings its information up-to-date and
3016 provides some information and instructions on the "dynamic" ENGINE
3017 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3020 *) Make it possible to unload ranges of ERR strings with a new
3021 "ERR_unload_strings" function.
3024 *) Add a copy() function to EVP_MD.
3027 *) Make EVP_MD routines take a context pointer instead of just the
3028 md_data void pointer.
3031 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3032 that the digest can only process a single chunk of data
3033 (typically because it is provided by a piece of
3034 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3035 is only going to provide a single chunk of data, and hence the
3036 framework needn't accumulate the data for oneshot drivers.
3039 *) As with "ERR", make it possible to replace the underlying "ex_data"
3040 functions. This change also alters the storage and management of global
3041 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3042 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3043 index counters. The API functions that use this state have been changed
3044 to take a "class_index" rather than pointers to the class's local STACK
3045 and counter, and there is now an API function to dynamically create new
3046 classes. This centralisation allows us to (a) plug a lot of the
3047 thread-safety problems that existed, and (b) makes it possible to clean
3048 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3049 such data would previously have always leaked in application code and
3050 workarounds were in place to make the memory debugging turn a blind eye
3051 to it. Application code that doesn't use this new function will still
3052 leak as before, but their memory debugging output will announce it now
3053 rather than letting it slide.
3055 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3056 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3057 has a return value to indicate success or failure.
3060 *) Make it possible to replace the underlying "ERR" functions such that the
3061 global state (2 LHASH tables and 2 locks) is only used by the "default"
3062 implementation. This change also adds two functions to "get" and "set"
3063 the implementation prior to it being automatically set the first time
3064 any other ERR function takes place. Ie. an application can call "get",
3065 pass the return value to a module it has just loaded, and that module
3066 can call its own "set" function using that value. This means the
3067 module's "ERR" operations will use (and modify) the error state in the
3068 application and not in its own statically linked copy of OpenSSL code.
3071 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3072 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3073 the operation, and provides a more encapsulated way for external code
3074 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3075 to use these functions rather than manually incrementing the counts.
3077 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3080 *) Add EVP test program.
3083 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3086 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3087 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3088 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3089 These allow a CRL to be built without having to access X509_CRL fields
3090 directly. Modify 'ca' application to use new functions.
3093 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3094 bug workarounds. Rollback attack detection is a security feature.
3095 The problem will only arise on OpenSSL servers when TLSv1 is not
3096 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3097 Software authors not wanting to support TLSv1 will have special reasons
3098 for their choice and can explicitly enable this option.
3099 [Bodo Moeller, Lutz Jaenicke]
3101 *) Rationalise EVP so it can be extended: don't include a union of
3102 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3103 (similar to those existing for EVP_CIPHER_CTX).
3108 EVP_MD_CTX_init(&md); /* new function call */
3109 EVP_DigestInit(&md, EVP_sha1());
3110 EVP_DigestUpdate(&md, in, len);
3111 EVP_DigestFinal(&md, out, NULL);
3112 EVP_MD_CTX_cleanup(&md); /* new function call */
3116 *) Make DES key schedule conform to the usual scheme, as well as
3117 correcting its structure. This means that calls to DES functions
3118 now have to pass a pointer to a des_key_schedule instead of a
3119 plain des_key_schedule (which was actually always a pointer
3122 des_key_schedule ks;
3124 des_set_key_checked(..., &ks);
3125 des_ncbc_encrypt(..., &ks, ...);
3127 (Note that a later change renames 'des_...' into 'DES_...'.)
3130 *) Initial reduction of linker bloat: the use of some functions, such as
3131 PEM causes large amounts of unused functions to be linked in due to
3132 poor organisation. For example pem_all.c contains every PEM function
3133 which has a knock on effect of linking in large amounts of (unused)
3134 ASN1 code. Grouping together similar functions and splitting unrelated
3135 functions prevents this.
3138 *) Cleanup of EVP macros.
3141 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3142 correct _ecb suffix.
3145 *) Add initial OCSP responder support to ocsp application. The
3146 revocation information is handled using the text based index
3147 use by the ca application. The responder can either handle
3148 requests generated internally, supplied in files (for example
3149 via a CGI script) or using an internal minimal server.
3152 *) Add configuration choices to get zlib compression for TLS.
3155 *) Changes to Kerberos SSL for RFC 2712 compliance:
3156 1. Implemented real KerberosWrapper, instead of just using
3157 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3158 2. Implemented optional authenticator field of KerberosWrapper.
3160 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3161 and authenticator structs; see crypto/krb5/.
3163 Generalized Kerberos calls to support multiple Kerberos libraries.
3164 [Vern Staats <staatsvr@asc.hpc.mil>,
3165 Jeffrey Altman <jaltman@columbia.edu>
3166 via Richard Levitte]
3168 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3169 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3170 values for each of the key sizes rather than having just
3171 parameters (and 'speed' generating keys each time).
3174 *) Speed up EVP routines.
3177 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3178 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3179 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3180 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3182 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3183 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3184 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3187 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3189 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3192 *) Added the OS2-EMX target.
3193 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3195 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3196 to support NCONF routines in extension code. New function CONF_set_nconf()
3197 to allow functions which take an NCONF to also handle the old LHASH
3198 structure: this means that the old CONF compatible routines can be
3199 retained (in particular wrt extensions) without having to duplicate the
3200 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3203 *) Enhance the general user interface with mechanisms for inner control
3204 and with possibilities to have yes/no kind of prompts.
3207 *) Change all calls to low level digest routines in the library and
3208 applications to use EVP. Add missing calls to HMAC_cleanup() and
3209 don't assume HMAC_CTX can be copied using memcpy().
3210 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3212 *) Add the possibility to control engines through control names but with
3213 arbitrary arguments instead of just a string.
3214 Change the key loaders to take a UI_METHOD instead of a callback
3215 function pointer. NOTE: this breaks binary compatibility with earlier
3216 versions of OpenSSL [engine].
3217 Adapt the nCipher code for these new conditions and add a card insertion
3221 *) Enhance the general user interface with mechanisms to better support
3222 dialog box interfaces, application-defined prompts, the possibility
3223 to use defaults (for example default passwords from somewhere else)
3224 and interrupts/cancellations.
3227 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3228 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3231 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3232 tidy up some unnecessarily weird code in 'sk_new()').
3233 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3235 *) Change the key loading routines for ENGINEs to use the same kind
3236 callback (pem_password_cb) as all other routines that need this
3240 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3241 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3242 than this minimum value is recommended.
3245 *) New random seeder for OpenVMS, using the system process statistics
3246 that are easily reachable.
3249 *) Windows apparently can't transparently handle global
3250 variables defined in DLLs. Initialisations such as:
3252 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3254 wont compile. This is used by the any applications that need to
3255 declare their own ASN1 modules. This was fixed by adding the option
3256 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3257 needed for static libraries under Win32.
3260 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3261 setting of purpose and trust fields. New X509_STORE trust and
3262 purpose functions and tidy up setting in other SSL functions.
3265 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3266 structure. These are inherited by X509_STORE_CTX when it is
3267 initialised. This allows various defaults to be set in the
3268 X509_STORE structure (such as flags for CRL checking and custom
3269 purpose or trust settings) for functions which only use X509_STORE_CTX
3270 internally such as S/MIME.
3272 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3273 trust settings if they are not set in X509_STORE. This allows X509_STORE
3274 purposes and trust (in S/MIME for example) to override any set by default.
3276 Add command line options for CRL checking to smime, s_client and s_server
3280 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3281 are set then the CRL is looked up in the X509_STORE structure and
3282 its validity and signature checked, then if the certificate is found
3283 in the CRL the verify fails with a revoked error.
3285 Various new CRL related callbacks added to X509_STORE_CTX structure.
3287 Command line options added to 'verify' application to support this.
3289 This needs some additional work, such as being able to handle multiple
3290 CRLs with different times, extension based lookup (rather than just
3291 by subject name) and ultimately more complete V2 CRL extension
3295 *) Add a general user interface API (crypto/ui/). This is designed
3296 to replace things like des_read_password and friends (backward
3297 compatibility functions using this new API are provided).
3298 The purpose is to remove prompting functions from the DES code
3299 section as well as provide for prompting through dialog boxes in
3300 a window system and the like.
3303 *) Add "ex_data" support to ENGINE so implementations can add state at a
3304 per-structure level rather than having to store it globally.
3307 *) Make it possible for ENGINE structures to be copied when retrieved by
3308 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3309 This causes the "original" ENGINE structure to act like a template,
3310 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3311 operational state can be localised to each ENGINE structure, despite the
3312 fact they all share the same "methods". New ENGINE structures returned in
3313 this case have no functional references and the return value is the single
3314 structural reference. This matches the single structural reference returned
3315 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3319 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3320 needs to match any other type at all we need to manually clear the
3324 *) Changes to the "openssl engine" utility to include;
3325 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3326 about an ENGINE's available control commands.
3327 - executing control commands from command line arguments using the
3328 '-pre' and '-post' switches. '-post' is only used if '-t' is
3329 specified and the ENGINE is successfully initialised. The syntax for
3330 the individual commands are colon-separated, for example;
3331 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3334 *) New dynamic control command support for ENGINEs. ENGINEs can now
3335 declare their own commands (numbers), names (strings), descriptions,
3336 and input types for run-time discovery by calling applications. A
3337 subset of these commands are implicitly classed as "executable"
3338 depending on their input type, and only these can be invoked through
3339 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3340 can be based on user input, config files, etc). The distinction is
3341 that "executable" commands cannot return anything other than a boolean
3342 result and can only support numeric or string input, whereas some
3343 discoverable commands may only be for direct use through
3344 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3345 pointers, or other custom uses. The "executable" commands are to
3346 support parameterisations of ENGINE behaviour that can be
3347 unambiguously defined by ENGINEs and used consistently across any
3348 OpenSSL-based application. Commands have been added to all the
3349 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3350 control over shared-library paths without source code alterations.
3353 *) Changed all ENGINE implementations to dynamically allocate their
3354 ENGINEs rather than declaring them statically. Apart from this being
3355 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3356 this also allows the implementations to compile without using the
3357 internal engine_int.h header.
3360 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3361 'const' value. Any code that should be able to modify a RAND_METHOD
3362 should already have non-const pointers to it (ie. they should only
3363 modify their own ones).
3366 *) Made a variety of little tweaks to the ENGINE code.
3367 - "atalla" and "ubsec" string definitions were moved from header files
3368 to C code. "nuron" string definitions were placed in variables
3369 rather than hard-coded - allowing parameterisation of these values
3370 later on via ctrl() commands.
3371 - Removed unused "#if 0"'d code.
3372 - Fixed engine list iteration code so it uses ENGINE_free() to release
3373 structural references.
3374 - Constified the RAND_METHOD element of ENGINE structures.
3375 - Constified various get/set functions as appropriate and added
3376 missing functions (including a catch-all ENGINE_cpy that duplicates
3377 all ENGINE values onto a new ENGINE except reference counts/state).
3378 - Removed NULL parameter checks in get/set functions. Setting a method
3379 or function to NULL is a way of cancelling out a previously set
3380 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3381 and doesn't justify the extra error symbols and code.
3382 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3383 flags from engine_int.h to engine.h.
3384 - Changed prototypes for ENGINE handler functions (init(), finish(),
3385 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3388 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3389 to the algorithm using long division. The binary algorithm can be
3390 used only if the modulus is odd. On 32-bit systems, it is faster
3391 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3392 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3393 up to 450 bits. In 64-bit environments, the binary algorithm
3394 appears to be advantageous for much longer moduli; here we use it
3395 for moduli up to 2048 bits.
3398 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3399 could not support the combine flag in choice fields.
3402 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3403 extensions from a certificate request to the certificate.
3406 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3407 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3408 file: this allows the display of the certificate about to be
3409 signed to be customised, to allow certain fields to be included
3410 or excluded and extension details. The old system didn't display
3411 multicharacter strings properly, omitted fields not in the policy
3412 and couldn't display additional details such as extensions.
3415 *) Function EC_POINTs_mul for multiple scalar multiplication
3416 of an arbitrary number of elliptic curve points
3417 \sum scalars[i]*points[i],
3418 optionally including the generator defined for the EC_GROUP:
3419 scalar*generator + \sum scalars[i]*points[i].
3421 EC_POINT_mul is a simple wrapper function for the typical case
3422 that the point list has just one item (besides the optional
3426 *) First EC_METHODs for curves over GF(p):
3428 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3429 operations and provides various method functions that can also
3430 operate with faster implementations of modular arithmetic.
3432 EC_GFp_mont_method() reuses most functions that are part of
3433 EC_GFp_simple_method, but uses Montgomery arithmetic.
3435 [Bodo Moeller; point addition and point doubling
3436 implementation directly derived from source code provided by
3437 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3439 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3440 crypto/ec/ec_lib.c):
3442 Curves are EC_GROUP objects (with an optional group generator)
3443 based on EC_METHODs that are built into the library.
3445 Points are EC_POINT objects based on EC_GROUP objects.
3447 Most of the framework would be able to handle curves over arbitrary
3448 finite fields, but as there are no obvious types for fields other
3449 than GF(p), some functions are limited to that for now.
3452 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3453 that the file contains a complete HTTP response.
3456 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3457 change the def and num file printf format specifier from "%-40sXXX"
3458 to "%-39s XXX". The latter will always guarantee a space after the
3459 field while the former will cause them to run together if the field
3460 is 40 of more characters long.
3463 *) Constify the cipher and digest 'method' functions and structures
3464 and modify related functions to take constant EVP_MD and EVP_CIPHER
3468 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3469 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3472 *) Modify EVP_Digest*() routines so they now return values. Although the
3473 internal software routines can never fail additional hardware versions
3477 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3479 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3480 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3483 ERR_R_NESTED_ASN1_ERROR
3485 ERR_R_MISSING_ASN1_EOS
3486 were 4 .. 9, conflicting with
3487 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3489 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3490 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3492 Add new error code 'ERR_R_INTERNAL_ERROR'.
3495 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3499 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3500 sets the subject name for a new request or supersedes the
3501 subject name in a given request. Formats that can be parsed are
3502 'CN=Some Name, OU=myOU, C=IT'
3504 'CN=Some Name/OU=myOU/C=IT'.
3506 Add options '-batch' and '-verbose' to 'openssl req'.
3507 [Massimiliano Pala <madwolf@hackmasters.net>]
3509 *) Introduce the possibility to access global variables through
3510 functions on platform were that's the best way to handle exporting
3511 global variables in shared libraries. To enable this functionality,
3512 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3513 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3514 is normally done by Configure or something similar).
3516 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3517 in the source file (foo.c) like this:
3519 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3520 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3522 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3523 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3525 OPENSSL_DECLARE_GLOBAL(int,foo);
3526 #define foo OPENSSL_GLOBAL_REF(foo)
3527 OPENSSL_DECLARE_GLOBAL(double,bar);
3528 #define bar OPENSSL_GLOBAL_REF(bar)
3530 The #defines are very important, and therefore so is including the
3531 header file everywhere where the defined globals are used.
3533 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3534 of ASN.1 items, but that structure is a bit different.
3536 The largest change is in util/mkdef.pl which has been enhanced with
3537 better and easier to understand logic to choose which symbols should
3538 go into the Windows .def files as well as a number of fixes and code
3539 cleanup (among others, algorithm keywords are now sorted
3540 lexicographically to avoid constant rewrites).
3543 *) In BN_div() keep a copy of the sign of 'num' before writing the
3544 result to 'rm' because if rm==num the value will be overwritten
3545 and produce the wrong result if 'num' is negative: this caused
3546 problems with BN_mod() and BN_nnmod().
3549 *) Function OCSP_request_verify(). This checks the signature on an
3550 OCSP request and verifies the signer certificate. The signer
3551 certificate is just checked for a generic purpose and OCSP request
3555 *) Add OCSP_check_validity() function to check the validity of OCSP
3556 responses. OCSP responses are prepared in real time and may only
3557 be a few seconds old. Simply checking that the current time lies
3558 between thisUpdate and nextUpdate max reject otherwise valid responses
3559 caused by either OCSP responder or client clock inaccuracy. Instead
3560 we allow thisUpdate and nextUpdate to fall within a certain period of
3561 the current time. The age of the response can also optionally be
3562 checked. Two new options -validity_period and -status_age added to
3566 *) If signature or public key algorithm is unrecognized print out its
3567 OID rather that just UNKNOWN.
3570 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3571 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3572 ID to be generated from the issuer certificate alone which can then be
3573 passed to OCSP_id_issuer_cmp().
3576 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3577 ASN1 modules to export functions returning ASN1_ITEM pointers
3578 instead of the ASN1_ITEM structures themselves. This adds several
3579 new macros which allow the underlying ASN1 function/structure to
3580 be accessed transparently. As a result code should not use ASN1_ITEM
3581 references directly (such as &X509_it) but instead use the relevant
3582 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3583 use of the new ASN1 code on platforms where exporting structures
3584 is problematical (for example in shared libraries) but exporting
3585 functions returning pointers to structures is not.
3588 *) Add support for overriding the generation of SSL/TLS session IDs.
3589 These callbacks can be registered either in an SSL_CTX or per SSL.
3590 The purpose of this is to allow applications to control, if they wish,
3591 the arbitrary values chosen for use as session IDs, particularly as it
3592 can be useful for session caching in multiple-server environments. A
3593 command-line switch for testing this (and any client code that wishes
3594 to use such a feature) has been added to "s_server".
3595 [Geoff Thorpe, Lutz Jaenicke]
3597 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3598 of the form '#if defined(...) || defined(...) || ...' and
3599 '#if !defined(...) && !defined(...) && ...'. This also avoids
3600 the growing number of special cases it was previously handling.
3603 *) Make all configuration macros available for application by making
3604 sure they are available in opensslconf.h, by giving them names starting
3605 with "OPENSSL_" to avoid conflicts with other packages and by making
3606 sure e_os2.h will cover all platform-specific cases together with
3608 Additionally, it is now possible to define configuration/platform-
3609 specific names (called "system identities"). In the C code, these
3610 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3611 macro with the name beginning with "OPENSSL_SYS_", which is determined
3612 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3616 *) New option -set_serial to 'req' and 'x509' this allows the serial
3617 number to use to be specified on the command line. Previously self
3618 signed certificates were hard coded with serial number 0 and the
3619 CA options of 'x509' had to use a serial number in a file which was
3623 *) New options to 'ca' utility to support V2 CRL entry extensions.
3624 Currently CRL reason, invalidity date and hold instruction are
3625 supported. Add new CRL extensions to V3 code and some new objects.
3628 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3629 disable standard block padding (aka PKCS#5 padding) in the EVP
3630 API, which was previously mandatory. This means that the data is
3631 not padded in any way and so the total length much be a multiple
3632 of the block size, otherwise an error occurs.
3635 *) Initial (incomplete) OCSP SSL support.
3638 *) New function OCSP_parse_url(). This splits up a URL into its host,
3639 port and path components: primarily to parse OCSP URLs. New -url
3640 option to ocsp utility.
3643 *) New nonce behavior. The return value of OCSP_check_nonce() now
3644 reflects the various checks performed. Applications can decide
3645 whether to tolerate certain situations such as an absent nonce
3646 in a response when one was present in a request: the ocsp application
3647 just prints out a warning. New function OCSP_add1_basic_nonce()
3648 this is to allow responders to include a nonce in a response even if
3649 the request is nonce-less.
3652 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3653 skipped when using openssl x509 multiple times on a single input file,
3654 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3657 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3658 set string type: to handle setting ASN1_TIME structures. Fix ca
3659 utility to correctly initialize revocation date of CRLs.
3662 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3663 the clients preferred ciphersuites and rather use its own preferences.
3664 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3665 Internet Explorer by ensuring unchanged hash method during stepup.
3666 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3669 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3670 to aes and add a new 'exist' option to print out symbols that don't
3674 *) Additional options to ocsp utility to allow flags to be set and
3675 additional certificates supplied.
3678 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3679 OCSP client a number of certificate to only verify the response
3683 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3684 handle the new API. Currently only ECB, CBC modes supported. Add new
3687 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3688 Encryption Standard (AES) Ciphersuites for Transport Layer
3689 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3690 not enabled by default and were not part of the "ALL" ciphersuite
3691 alias because they were not yet official; they could be
3692 explicitly requested by specifying the "AESdraft" ciphersuite
3693 group alias. In the final release of OpenSSL 0.9.7, the group
3694 alias is called "AES" and is part of "ALL".)
3695 [Ben Laurie, Steve Henson, Bodo Moeller]
3697 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3698 request to response.
3701 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3702 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3703 extract information from a certificate request. OCSP_response_create()
3704 creates a response and optionally adds a basic response structure.
3705 OCSP_basic_add1_status() adds a complete single response to a basic
3706 response and returns the OCSP_SINGLERESP structure just added (to allow
3707 extensions to be included for example). OCSP_basic_add1_cert() adds a
3708 certificate to a basic response and OCSP_basic_sign() signs a basic
3709 response with various flags. New helper functions ASN1_TIME_check()
3710 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3711 (converts ASN1_TIME to GeneralizedTime).
3714 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3715 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3716 structure from a certificate. X509_pubkey_digest() digests the public_key
3717 contents: this is used in various key identifiers.
3720 *) Make sk_sort() tolerate a NULL argument.
3721 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3723 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3724 passed by the function are trusted implicitly. If any of them signed the
3725 response then it is assumed to be valid and is not verified.
3728 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3729 to data. This was previously part of the PKCS7 ASN1 code. This
3730 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3731 [Steve Henson, reported by Kenneth R. Robinette
3732 <support@securenetterm.com>]
3734 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3735 routines: without these tracing memory leaks is very painful.
3736 Fix leaks in PKCS12 and PKCS7 routines.
3739 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3740 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3741 effectively meant GeneralizedTime would never be used. Now it
3742 is initialised to -1 but X509_time_adj() now has to check the value
3743 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3744 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3745 [Steve Henson, reported by Kenneth R. Robinette
3746 <support@securenetterm.com>]
3748 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3749 result in a zero length in the ASN1_INTEGER structure which was
3750 not consistent with the structure when d2i_ASN1_INTEGER() was used
3751 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3752 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3753 where it did not print out a minus for negative ASN1_INTEGER.
3756 *) Add summary printout to ocsp utility. The various functions which
3757 convert status values to strings have been renamed to:
3758 OCSP_response_status_str(), OCSP_cert_status_str() and
3759 OCSP_crl_reason_str() and are no longer static. New options
3760 to verify nonce values and to disable verification. OCSP response
3761 printout format cleaned up.
3764 *) Add additional OCSP certificate checks. These are those specified
3765 in RFC2560. This consists of two separate checks: the CA of the
3766 certificate being checked must either be the OCSP signer certificate
3767 or the issuer of the OCSP signer certificate. In the latter case the
3768 OCSP signer certificate must contain the OCSP signing extended key
3769 usage. This check is performed by attempting to match the OCSP
3770 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3771 in the OCSP_CERTID structures of the response.
3774 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3775 and related routines. This uses the standard OpenSSL certificate
3776 verify routines to perform initial checks (just CA validity) and
3777 to obtain the certificate chain. Then additional checks will be
3778 performed on the chain. Currently the root CA is checked to see
3779 if it is explicitly trusted for OCSP signing. This is used to set
3780 a root CA as a global signing root: that is any certificate that
3781 chains to that CA is an acceptable OCSP signing certificate.
3784 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3785 extensions from a separate configuration file.
3786 As when reading extensions from the main configuration file,
3787 the '-extensions ...' option may be used for specifying the
3789 [Massimiliano Pala <madwolf@comune.modena.it>]
3791 *) New OCSP utility. Allows OCSP requests to be generated or
3792 read. The request can be sent to a responder and the output
3793 parsed, outputed or printed in text form. Not complete yet:
3794 still needs to check the OCSP response validity.
3797 *) New subcommands for 'openssl ca':
3798 'openssl ca -status <serial>' prints the status of the cert with
3799 the given serial number (according to the index file).
3800 'openssl ca -updatedb' updates the expiry status of certificates
3802 [Massimiliano Pala <madwolf@comune.modena.it>]
3804 *) New '-newreq-nodes' command option to CA.pl. This is like
3805 '-newreq', but calls 'openssl req' with the '-nodes' option
3806 so that the resulting key is not encrypted.
3807 [Damien Miller <djm@mindrot.org>]
3809 *) New configuration for the GNU Hurd.
3810 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3812 *) Initial code to implement OCSP basic response verify. This
3813 is currently incomplete. Currently just finds the signer's
3814 certificate and verifies the signature on the response.
3817 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3818 value of OPENSSLDIR. This is available via the new '-d' option
3819 to 'openssl version', and is also included in 'openssl version -a'.
3822 *) Allowing defining memory allocation callbacks that will be given
3823 file name and line number information in additional arguments
3824 (a const char* and an int). The basic functionality remains, as
3825 well as the original possibility to just replace malloc(),
3826 realloc() and free() by functions that do not know about these
3827 additional arguments. To register and find out the current
3828 settings for extended allocation functions, the following
3829 functions are provided:
3831 CRYPTO_set_mem_ex_functions
3832 CRYPTO_set_locked_mem_ex_functions
3833 CRYPTO_get_mem_ex_functions
3834 CRYPTO_get_locked_mem_ex_functions
3836 These work the same way as CRYPTO_set_mem_functions and friends.
3837 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3838 extended allocation function is enabled.
3839 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3840 a conventional allocation function is enabled.
3841 [Richard Levitte, Bodo Moeller]
3843 *) Finish off removing the remaining LHASH function pointer casts.
3844 There should no longer be any prototype-casting required when using
3845 the LHASH abstraction, and any casts that remain are "bugs". See
3846 the callback types and macros at the head of lhash.h for details
3847 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3850 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3851 If /dev/[u]random devices are not available or do not return enough
3852 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3854 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3855 /etc/entropy will be queried once each in this sequence, quering stops
3856 when enough entropy was collected without querying more sockets.
3859 *) Change the Unix RAND_poll() variant to be able to poll several
3860 random devices, as specified by DEVRANDOM, until a sufficient amount
3861 of data has been collected. We spend at most 10 ms on each file
3862 (select timeout) and read in non-blocking mode. DEVRANDOM now
3863 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3864 (previously it was just the string "/dev/urandom"), so on typical
3865 platforms the 10 ms delay will never occur.
3866 Also separate out the Unix variant to its own file, rand_unix.c.
3867 For VMS, there's a currently-empty rand_vms.c.
3870 *) Move OCSP client related routines to ocsp_cl.c. These
3871 provide utility functions which an application needing
3872 to issue a request to an OCSP responder and analyse the
3873 response will typically need: as opposed to those which an
3874 OCSP responder itself would need which will be added later.
3876 OCSP_request_sign() signs an OCSP request with an API similar
3877 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3878 response. OCSP_response_get1_basic() extracts basic response
3879 from response. OCSP_resp_find_status(): finds and extracts status
3880 information from an OCSP_CERTID structure (which will be created
3881 when the request structure is built). These are built from lower
3882 level functions which work on OCSP_SINGLERESP structures but
3883 wont normally be used unless the application wishes to examine
3884 extensions in the OCSP response for example.
3886 Replace nonce routines with a pair of functions.
3887 OCSP_request_add1_nonce() adds a nonce value and optionally
3888 generates a random value. OCSP_check_nonce() checks the
3889 validity of the nonce in an OCSP response.
3892 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3893 This doesn't copy the supplied OCSP_CERTID and avoids the
3894 need to free up the newly created id. Change return type
3895 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3896 This can then be used to add extensions to the request.
3897 Deleted OCSP_request_new(), since most of its functionality
3898 is now in OCSP_REQUEST_new() (and the case insensitive name
3899 clash) apart from the ability to set the request name which
3900 will be added elsewhere.
3903 *) Update OCSP API. Remove obsolete extensions argument from
3904 various functions. Extensions are now handled using the new
3905 OCSP extension code. New simple OCSP HTTP function which
3906 can be used to send requests and parse the response.
3909 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3910 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3911 uses the special reorder version of SET OF to sort the attributes
3912 and reorder them to match the encoded order. This resolves a long
3913 standing problem: a verify on a PKCS7 structure just after signing
3914 it used to fail because the attribute order did not match the
3915 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3916 it uses the received order. This is necessary to tolerate some broken
3917 software that does not order SET OF. This is handled by encoding
3918 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3919 to produce the required SET OF.
3922 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3923 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3924 files to get correct declarations of the ASN.1 item variables.
3927 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3928 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3929 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3930 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3931 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3932 ASN1_ITEM and no wrapper functions.
3935 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3936 replace the old function pointer based I/O routines. Change most of
3937 the *_d2i_bio() and *_d2i_fp() functions to use these.
3940 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3941 lines, recognice more "algorithms" that can be deselected, and make
3942 it complain about algorithm deselection that isn't recognised.
3945 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3946 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3947 to use new functions. Add NO_ASN1_OLD which can be set to remove
3948 some old style ASN1 functions: this can be used to determine if old
3949 code will still work when these eventually go away.
3952 *) New extension functions for OCSP structures, these follow the
3953 same conventions as certificates and CRLs.
3956 *) New function X509V3_add1_i2d(). This automatically encodes and
3957 adds an extension. Its behaviour can be customised with various
3958 flags to append, replace or delete. Various wrappers added for
3959 certifcates and CRLs.
3962 *) Fix to avoid calling the underlying ASN1 print routine when
3963 an extension cannot be parsed. Correct a typo in the
3964 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3967 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3968 entries for variables.
3971 *) Add functionality to apps/openssl.c for detecting locking
3972 problems: As the program is single-threaded, all we have
3973 to do is register a locking callback using an array for
3974 storing which locks are currently held by the program.
3977 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3978 SSL_get_ex_data_X509_STORE_idx(), which is used in
3979 ssl_verify_cert_chain() and thus can be called at any time
3980 during TLS/SSL handshakes so that thread-safety is essential.
3981 Unfortunately, the ex_data design is not at all suited
3982 for multi-threaded use, so it probably should be abolished.
3985 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3986 [Broadcom, tweaked and integrated by Geoff Thorpe]
3988 *) Move common extension printing code to new function
3989 X509V3_print_extensions(). Reorganise OCSP print routines and
3990 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3993 *) New function X509_signature_print() to remove duplication in some
3997 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3998 set (this was treated exactly the same as SET OF previously). This
3999 is used to reorder the STACK representing the structure to match the
4000 encoding. This will be used to get round a problem where a PKCS7
4001 structure which was signed could not be verified because the STACK
4002 order did not reflect the encoded order.
4005 *) Reimplement the OCSP ASN1 module using the new code.
4008 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4009 for its ASN1 operations. The old style function pointers still exist
4010 for now but they will eventually go away.
4013 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4014 completely replaces the old ASN1 functionality with a table driven
4015 encoder and decoder which interprets an ASN1_ITEM structure describing
4016 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4017 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4018 has also been converted to the new form.
4021 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4022 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4023 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4024 for negative moduli.
4027 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4028 of not touching the result's sign bit.
4031 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4035 *) Changed the LHASH code to use prototypes for callbacks, and created
4036 macros to declare and implement thin (optionally static) functions
4037 that provide type-safety and avoid function pointer casting for the
4038 type-specific callbacks.
4041 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4043 [Veers Staats <staatsvr@asc.hpc.mil>,
4044 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4046 *) Reformat the FAQ so the different questions and answers can be divided
4047 in sections depending on the subject.
4050 *) Have the zlib compression code load ZLIB.DLL dynamically under
4054 *) New function BN_mod_sqrt for computing square roots modulo a prime
4055 (using the probabilistic Tonelli-Shanks algorithm unless
4056 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4057 be handled deterministically).
4058 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4060 *) Make BN_mod_inverse faster by explicitly handling small quotients
4061 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4062 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4065 *) New function BN_kronecker.
4068 *) Fix BN_gcd so that it works on negative inputs; the result is
4069 positive unless both parameters are zero.
4070 Previously something reasonably close to an infinite loop was
4071 possible because numbers could be growing instead of shrinking
4072 in the implementation of Euclid's algorithm.
4075 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4076 sign of the number in question.
4078 Fix BN_is_word(a,w) to work correctly for w == 0.
4080 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4081 because its test if the absolute value of 'a' equals 'w'.
4082 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4083 it exists mostly for use in the implementations of BN_is_zero(),
4084 BN_is_one(), and BN_is_word().
4087 *) New function BN_swap.
4090 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4091 the exponentiation functions are more likely to produce reasonable
4092 results on negative inputs.
4095 *) Change BN_mod_mul so that the result is always non-negative.
4096 Previously, it could be negative if one of the factors was negative;
4097 I don't think anyone really wanted that behaviour.
4100 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4101 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4102 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4103 and add new functions:
4112 BN_mod_lshift1_quick
4116 These functions always generate non-negative results.
4118 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4119 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4121 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4122 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4123 be reduced modulo m.
4124 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4127 The following entry accidentily appeared in the CHANGES file
4128 distributed with OpenSSL 0.9.7. The modifications described in
4129 it do *not* apply to OpenSSL 0.9.7.
4131 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4132 was actually never needed) and in BN_mul(). The removal in BN_mul()
4133 required a small change in bn_mul_part_recursive() and the addition
4134 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4135 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4136 bn_sub_words() and bn_add_words() except they take arrays with
4141 *) In 'openssl passwd', verify passwords read from the terminal
4142 unless the '-salt' option is used (which usually means that
4143 verification would just waste user's time since the resulting
4144 hash is going to be compared with some given password hash)
4145 or the new '-noverify' option is used.
4147 This is an incompatible change, but it does not affect
4148 non-interactive use of 'openssl passwd' (passwords on the command
4149 line, '-stdin' option, '-in ...' option) and thus should not
4153 *) Remove all references to RSAref, since there's no more need for it.
4156 *) Make DSO load along a path given through an environment variable
4157 (SHLIB_PATH) with shl_load().
4160 *) Constify the ENGINE code as a result of BIGNUM constification.
4161 Also constify the RSA code and most things related to it. In a
4162 few places, most notable in the depth of the ASN.1 code, ugly
4163 casts back to non-const were required (to be solved at a later
4167 *) Make it so the openssl application has all engines loaded by default.
4170 *) Constify the BIGNUM routines a little more.
4173 *) Add the following functions:
4175 ENGINE_load_cswift()
4177 ENGINE_load_atalla()
4179 ENGINE_load_builtin_engines()
4181 That way, an application can itself choose if external engines that
4182 are built-in in OpenSSL shall ever be used or not. The benefit is
4183 that applications won't have to be linked with libdl or other dso
4184 libraries unless it's really needed.
4186 Changed 'openssl engine' to load all engines on demand.
4187 Changed the engine header files to avoid the duplication of some
4188 declarations (they differed!).
4191 *) 'openssl engine' can now list capabilities.
4194 *) Better error reporting in 'openssl engine'.
4197 *) Never call load_dh_param(NULL) in s_server.
4200 *) Add engine application. It can currently list engines by name and
4201 identity, and test if they are actually available.
4204 *) Improve RPM specification file by forcing symbolic linking and making
4205 sure the installed documentation is also owned by root.root.
4206 [Damien Miller <djm@mindrot.org>]
4208 *) Give the OpenSSL applications more possibilities to make use of
4209 keys (public as well as private) handled by engines.
4212 *) Add OCSP code that comes from CertCo.
4215 *) Add VMS support for the Rijndael code.
4218 *) Added untested support for Nuron crypto accelerator.
4221 *) Add support for external cryptographic devices. This code was
4222 previously distributed separately as the "engine" branch.
4223 [Geoff Thorpe, Richard Levitte]
4225 *) Rework the filename-translation in the DSO code. It is now possible to
4226 have far greater control over how a "name" is turned into a filename
4227 depending on the operating environment and any oddities about the
4228 different shared library filenames on each system.
4231 *) Support threads on FreeBSD-elf in Configure.
4234 *) Fix for SHA1 assembly problem with MASM: it produces
4235 warnings about corrupt line number information when assembling
4236 with debugging information. This is caused by the overlapping
4238 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4241 NCONF_get_number() has no error checking at all. As a replacement,
4242 NCONF_get_number_e() is defined (_e for "error checking") and is
4243 promoted strongly. The old NCONF_get_number is kept around for
4244 binary backward compatibility.
4245 Make it possible for methods to load from something other than a BIO,
4246 by providing a function pointer that is given a name instead of a BIO.
4247 For example, this could be used to load configuration data from an
4251 *) Fix for non blocking accept BIOs. Added new I/O special reason
4252 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4253 with non blocking I/O was not possible because no retry code was
4254 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4258 *) Added the beginnings of Rijndael support.
4261 *) Fix for bug in DirectoryString mask setting. Add support for
4262 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4263 to allow certificate printing to more controllable, additional
4264 'certopt' option to 'x509' to allow new printing options to be
4268 *) Clean old EAY MD5 hack from e_os.h.
4271 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4273 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4274 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4275 [Joe Orton, Steve Henson]
4277 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4279 *) Fix additional bug revealed by the NISCC test suite:
4281 Stop bug triggering large recursion when presented with
4282 certain ASN.1 tags (CVE-2003-0851)
4285 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4287 *) Fix various bugs revealed by running the NISCC test suite:
4289 Stop out of bounds reads in the ASN1 code when presented with
4290 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4292 If verify callback ignores invalid public key errors don't try to check
4293 certificate signature with the NULL public key.
4297 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4298 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4302 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4303 extra data after the compression methods not only for TLS 1.0
4304 but also for SSL 3.0 (as required by the specification).
4305 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4307 *) Change X509_certificate_type() to mark the key as exported/exportable
4308 when it's 512 *bits* long, not 512 bytes.
4311 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4313 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4314 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4315 a protocol version number mismatch like a decryption error
4316 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4319 *) Turn on RSA blinding by default in the default implementation
4320 to avoid a timing attack. Applications that don't want it can call
4321 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4322 They would be ill-advised to do so in most cases.
4323 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4325 *) Change RSA blinding code so that it works when the PRNG is not
4326 seeded (in this case, the secret RSA exponent is abused as
4327 an unpredictable seed -- if it is not unpredictable, there
4328 is no point in blinding anyway). Make RSA blinding thread-safe
4329 by remembering the creator's thread ID in rsa->blinding and
4330 having all other threads use local one-time blinding factors
4331 (this requires more computation than sharing rsa->blinding, but
4332 avoids excessive locking; and if an RSA object is not shared
4333 between threads, blinding will still be very fast).
4336 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4338 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4339 via timing by performing a MAC computation even if incorrrect
4340 block cipher padding has been found. This is a countermeasure
4341 against active attacks where the attacker has to distinguish
4342 between bad padding and a MAC verification error. (CVE-2003-0078)
4344 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4345 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4346 Martin Vuagnoux (EPFL, Ilion)]
4348 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4350 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4351 memory from it's contents. This is done with a counter that will
4352 place alternating values in each byte. This can be used to solve
4353 two issues: 1) the removal of calls to memset() by highly optimizing
4354 compilers, and 2) cleansing with other values than 0, since those can
4355 be read through on certain media, for example a swap space on disk.
4358 *) Bugfix: client side session caching did not work with external caching,
4359 because the session->cipher setting was not restored when reloading
4360 from the external cache. This problem was masked, when
4361 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4362 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4365 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4366 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4367 [Zeev Lieber <zeev-l@yahoo.com>]
4369 *) Undo an undocumented change introduced in 0.9.6e which caused
4370 repeated calls to OpenSSL_add_all_ciphers() and
4371 OpenSSL_add_all_digests() to be ignored, even after calling
4375 *) Change the default configuration reader to deal with last line not
4376 being properly terminated.
4379 *) Change X509_NAME_cmp() so it applies the special rules on handling
4380 DN values that are of type PrintableString, as well as RDNs of type
4381 emailAddress where the value has the type ia5String.
4382 [stefank@valicert.com via Richard Levitte]
4384 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4385 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4386 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4387 the bitwise-OR of the two for use by the majority of applications
4388 wanting this behaviour, and update the docs. The documented
4389 behaviour and actual behaviour were inconsistent and had been
4390 changing anyway, so this is more a bug-fix than a behavioural
4392 [Geoff Thorpe, diagnosed by Nadav Har'El]
4394 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4395 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4398 *) Fix initialization code race conditions in
4399 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4400 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4401 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4402 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4403 ssl2_get_cipher_by_char(),
4404 ssl3_get_cipher_by_char().
4405 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4407 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4408 the cached sessions are flushed, as the remove_cb() might use ex_data
4409 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4410 (see [openssl.org #212]).
4411 [Geoff Thorpe, Lutz Jaenicke]
4413 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4414 length, instead of the encoding length to d2i_ASN1_OBJECT.
4417 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4419 *) [In 0.9.6g-engine release:]
4420 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4421 [Lynn Gazis <lgazis@rainbow.com>]
4423 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4425 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4426 and get fix the header length calculation.
4427 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4428 Alon Kantor <alonk@checkpoint.com> (and others),
4431 *) Use proper error handling instead of 'assertions' in buffer
4432 overflow checks added in 0.9.6e. This prevents DoS (the
4433 assertions could call abort()).
4434 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4436 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4438 *) Add various sanity checks to asn1_get_length() to reject
4439 the ASN1 length bytes if they exceed sizeof(long), will appear
4440 negative or the content length exceeds the length of the
4442 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4444 *) Fix cipher selection routines: ciphers without encryption had no flags
4445 for the cipher strength set and where therefore not handled correctly
4446 by the selection routines (PR #130).
4449 *) Fix EVP_dsa_sha macro.
4453 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4454 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4455 that was added in OpenSSL 0.9.6d.
4457 As the countermeasure turned out to be incompatible with some
4458 broken SSL implementations, the new option is part of SSL_OP_ALL.
4459 SSL_OP_ALL is usually employed when compatibility with weird SSL
4460 implementations is desired (e.g. '-bugs' option to 's_client' and
4461 's_server'), so the new option is automatically set in many
4465 *) Changes in security patch:
4467 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4468 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4469 Air Force Materiel Command, USAF, under agreement number
4472 *) Add various sanity checks to asn1_get_length() to reject
4473 the ASN1 length bytes if they exceed sizeof(long), will appear
4474 negative or the content length exceeds the length of the
4475 supplied buffer. (CVE-2002-0659)
4476 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4478 *) Assertions for various potential buffer overflows, not known to
4480 [Ben Laurie (CHATS)]
4482 *) Various temporary buffers to hold ASCII versions of integers were
4483 too small for 64 bit platforms. (CVE-2002-0655)
4484 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4486 *) Remote buffer overflow in SSL3 protocol - an attacker could
4487 supply an oversized session ID to a client. (CVE-2002-0656)
4488 [Ben Laurie (CHATS)]
4490 *) Remote buffer overflow in SSL2 protocol - an attacker could
4491 supply an oversized client master key. (CVE-2002-0656)
4492 [Ben Laurie (CHATS)]
4494 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4496 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4497 encoded as NULL) with id-dsa-with-sha1.
4498 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4500 *) Check various X509_...() return values in apps/req.c.
4501 [Nils Larsch <nla@trustcenter.de>]
4503 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4504 an end-of-file condition would erronously be flagged, when the CRLF
4505 was just at the end of a processed block. The bug was discovered when
4506 processing data through a buffering memory BIO handing the data to a
4507 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4508 <ptsekov@syntrex.com> and Nedelcho Stanev.
4511 *) Implement a countermeasure against a vulnerability recently found
4512 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4513 before application data chunks to avoid the use of known IVs
4514 with data potentially chosen by the attacker.
4517 *) Fix length checks in ssl3_get_client_hello().
4520 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4521 to prevent ssl3_read_internal() from incorrectly assuming that
4522 ssl3_read_bytes() found application data while handshake
4523 processing was enabled when in fact s->s3->in_read_app_data was
4524 merely automatically cleared during the initial handshake.
4525 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4527 *) Fix object definitions for Private and Enterprise: they were not
4528 recognized in their shortname (=lowercase) representation. Extend
4529 obj_dat.pl to issue an error when using undefined keywords instead
4530 of silently ignoring the problem (Svenning Sorensen
4531 <sss@sss.dnsalias.net>).
4534 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4535 generators, i.e. generators other than 2 and 5. (Previously, the
4536 code did not properly initialise the 'add' and 'rem' values to
4537 BN_generate_prime().)
4539 In the new general case, we do not insist that 'generator' is
4540 actually a primitive root: This requirement is rather pointless;
4541 a generator of the order-q subgroup is just as good, if not
4545 *) Map new X509 verification errors to alerts. Discovered and submitted by
4546 Tom Wu <tom@arcot.com>.
4549 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4550 returning non-zero before the data has been completely received
4551 when using non-blocking I/O.
4552 [Bodo Moeller; problem pointed out by John Hughes]
4554 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4555 [Ben Laurie, Lutz Jaenicke]
4557 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4558 Yoram Zahavi <YoramZ@gilian.com>).
4561 *) Add information about CygWin 1.3 and on, and preserve proper
4562 configuration for the versions before that.
4563 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4565 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4566 check whether we deal with a copy of a session and do not delete from
4567 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4568 <izhar@checkpoint.com>.
4571 *) Do not store session data into the internal session cache, if it
4572 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4573 flag is set). Proposed by Aslam <aslam@funk.com>.
4576 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4580 *) [In 0.9.6d-engine release:]
4581 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4582 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4584 *) Add the configuration target linux-s390x.
4585 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4587 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4588 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4589 variable as an indication that a ClientHello message has been
4590 received. As the flag value will be lost between multiple
4591 invocations of ssl3_accept when using non-blocking I/O, the
4592 function may not be aware that a handshake has actually taken
4593 place, thus preventing a new session from being added to the
4596 To avoid this problem, we now set s->new_session to 2 instead of
4597 using a local variable.
4598 [Lutz Jaenicke, Bodo Moeller]
4600 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4601 if the SSL_R_LENGTH_MISMATCH error is detected.
4602 [Geoff Thorpe, Bodo Moeller]
4604 *) New 'shared_ldflag' column in Configure platform table.
4607 *) Fix EVP_CIPHER_mode macro.
4608 ["Dan S. Camper" <dan@bti.net>]
4610 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4611 type, we must throw them away by setting rr->length to 0.
4612 [D P Chang <dpc@qualys.com>]
4614 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4616 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4617 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4618 worked incorrectly for those cases where range = 10..._2 and
4619 3*range is two bits longer than range.)
4622 *) Only add signing time to PKCS7 structures if it is not already
4626 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4627 OBJ_ld_ce should be OBJ_id_ce.
4628 Also some ip-pda OIDs in crypto/objects/objects.txt were
4629 incorrect (cf. RFC 3039).
4630 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4632 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4633 returns early because it has nothing to do.
4634 [Andy Schneider <andy.schneider@bjss.co.uk>]
4636 *) [In 0.9.6c-engine release:]
4637 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4638 [Andy Schneider <andy.schneider@bjss.co.uk>]
4640 *) [In 0.9.6c-engine release:]
4641 Add support for Cryptographic Appliance's keyserver technology.
4642 (Use engine 'keyclient')
4643 [Cryptographic Appliances and Geoff Thorpe]
4645 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4646 is called via tools/c89.sh because arguments have to be
4647 rearranged (all '-L' options must appear before the first object
4649 [Richard Shapiro <rshapiro@abinitio.com>]
4651 *) [In 0.9.6c-engine release:]
4652 Add support for Broadcom crypto accelerator cards, backported
4654 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4656 *) [In 0.9.6c-engine release:]
4657 Add support for SureWare crypto accelerator cards from
4658 Baltimore Technologies. (Use engine 'sureware')
4659 [Baltimore Technologies and Mark Cox]
4661 *) [In 0.9.6c-engine release:]
4662 Add support for crypto accelerator cards from Accelerated
4663 Encryption Processing, www.aep.ie. (Use engine 'aep')
4664 [AEP Inc. and Mark Cox]
4666 *) Add a configuration entry for gcc on UnixWare.
4667 [Gary Benson <gbenson@redhat.com>]
4669 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4670 messages are stored in a single piece (fixed-length part and
4671 variable-length part combined) and fix various bugs found on the way.
4674 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4675 instead. BIO_gethostbyname() does not know what timeouts are
4676 appropriate, so entries would stay in cache even when they have
4678 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4680 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4681 faced with a pathologically small ClientHello fragment that does
4682 not contain client_version: Instead of aborting with an error,
4683 simply choose the highest available protocol version (i.e.,
4684 TLS 1.0 unless it is disabled). In practice, ClientHello
4685 messages are never sent like this, but this change gives us
4686 strictly correct behaviour at least for TLS.
4689 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4690 never resets s->method to s->ctx->method when called from within
4691 one of the SSL handshake functions.
4692 [Bodo Moeller; problem pointed out by Niko Baric]
4694 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4695 (sent using the client's version number) if client_version is
4696 smaller than the protocol version in use. Also change
4697 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4698 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4699 the client will at least see that alert.
4702 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4706 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4707 client receives HelloRequest while in a handshake.
4708 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4710 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4711 should end in 'break', not 'goto end' which circuments various
4712 cleanups done in state SSL_ST_OK. But session related stuff
4713 must be disabled for SSL_ST_OK in the case that we just sent a
4716 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4717 before just sending a HelloRequest.
4718 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4720 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4721 reveal whether illegal block cipher padding was found or a MAC
4722 verification error occured. (Neither SSLerr() codes nor alerts
4723 are directly visible to potential attackers, but the information
4724 may leak via logfiles.)
4726 Similar changes are not required for the SSL 2.0 implementation
4727 because the number of padding bytes is sent in clear for SSL 2.0,
4728 and the extra bytes are just ignored. However ssl/s2_pkt.c
4729 failed to verify that the purported number of padding bytes is in
4733 *) Add OpenUNIX-8 support including shared libraries
4734 (Boyd Lynn Gerber <gerberb@zenez.com>).
4737 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4738 'wristwatch attack' using huge encoding parameters (cf.
4739 James H. Manger's CRYPTO 2001 paper). Note that the
4740 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4741 encoding parameters and hence was not vulnerable.
4744 *) BN_sqr() bug fix.
4745 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4747 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4748 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4749 followed by modular reduction.
4750 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4752 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4753 equivalent based on BN_pseudo_rand() instead of BN_rand().
4756 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4757 This function was broken, as the check for a new client hello message
4758 to handle SGC did not allow these large messages.
4759 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4762 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4765 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4766 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4769 *) Rework the configuration and shared library support for Tru64 Unix.
4770 The configuration part makes use of modern compiler features and
4771 still retains old compiler behavior for those that run older versions
4772 of the OS. The shared library support part includes a variant that
4773 uses the RPATH feature, and is available through the special
4774 configuration target "alpha-cc-rpath", which will never be selected
4776 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4778 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4779 with the same message size as in ssl3_get_certificate_request().
4780 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4781 messages might inadvertently be reject as too long.
4782 [Petr Lampa <lampa@fee.vutbr.cz>]
4784 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4787 *) Modified SSL library such that the verify_callback that has been set
4788 specificly for an SSL object with SSL_set_verify() is actually being
4789 used. Before the change, a verify_callback set with this function was
4790 ignored and the verify_callback() set in the SSL_CTX at the time of
4791 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4792 to allow the necessary settings.
4795 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4796 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4797 done automatically (in contradiction to the requirements of the C
4798 standard). This made problems when used from OpenSSH.
4801 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4802 dh->length and always used
4804 BN_rand_range(priv_key, dh->p).
4806 BN_rand_range() is not necessary for Diffie-Hellman, and this
4807 specific range makes Diffie-Hellman unnecessarily inefficient if
4808 dh->length (recommended exponent length) is much smaller than the
4809 length of dh->p. We could use BN_rand_range() if the order of
4810 the subgroup was stored in the DH structure, but we only have
4815 BN_rand(priv_key, l, ...)
4817 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4823 RSA_eay_public_encrypt
4824 RSA_eay_private_decrypt
4825 RSA_eay_private_encrypt (signing)
4826 RSA_eay_public_decrypt (signature verification)
4828 (default implementations for RSA_public_encrypt,
4829 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4830 always reject numbers >= n.
4833 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4834 to synchronize access to 'locking_thread'. This is necessary on
4835 systems where access to 'locking_thread' (an 'unsigned long'
4836 variable) is not atomic.
4839 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4840 *before* setting the 'crypto_lock_rand' flag. The previous code had
4841 a race condition if 0 is a valid thread ID.
4842 [Travis Vitek <vitek@roguewave.com>]
4844 *) Add support for shared libraries under Irix.
4845 [Albert Chin-A-Young <china@thewrittenword.com>]
4847 *) Add configuration option to build on Linux on both big-endian and
4849 [Ralf Baechle <ralf@uni-koblenz.de>]
4851 *) Add the possibility to create shared libraries on HP-UX.
4854 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4856 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4857 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4858 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4859 PRNG state recovery was possible based on the output of
4860 one PRNG request appropriately sized to gain knowledge on
4861 'md' followed by enough consecutive 1-byte PRNG requests
4862 to traverse all of 'state'.
4864 1. When updating 'md_local' (the current thread's copy of 'md')
4865 during PRNG output generation, hash all of the previous
4866 'md_local' value, not just the half used for PRNG output.
4868 2. Make the number of bytes from 'state' included into the hash
4869 independent from the number of PRNG bytes requested.
4871 The first measure alone would be sufficient to avoid
4872 Markku-Juhani's attack. (Actually it had never occurred
4873 to me that the half of 'md_local' used for chaining was the
4874 half from which PRNG output bytes were taken -- I had always
4875 assumed that the secret half would be used.) The second
4876 measure makes sure that additional data from 'state' is never
4877 mixed into 'md_local' in small portions; this heuristically
4878 further strengthens the PRNG.
4881 *) Fix crypto/bn/asm/mips3.s.
4884 *) When only the key is given to "enc", the IV is undefined. Print out
4885 an error message in this case.
4888 *) Handle special case when X509_NAME is empty in X509 printing routines.
4891 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4892 positive and less than q.
4895 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4896 used: it isn't thread safe and the add_lock_callback should handle
4898 [Paul Rose <Paul.Rose@bridge.com>]
4900 *) Verify that incoming data obeys the block size in
4901 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4905 [Ulf Möller, Bodo Möller]
4907 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4908 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4909 when fixing the server behaviour for backwards-compatible 'client
4910 hello' messages. (Note that the attack is impractical against
4911 SSL 3.0 and TLS 1.0 anyway because length and version checking
4912 means that the probability of guessing a valid ciphertext is
4913 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4916 Before 0.9.5, the countermeasure (hide the error by generating a
4917 random 'decryption result') did not work properly because
4918 ERR_clear_error() was missing, meaning that SSL_get_error() would
4919 detect the supposedly ignored error.
4921 Both problems are now fixed.
4924 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4925 (previously it was 1024).
4928 *) Fix for compatibility mode trust settings: ignore trust settings
4929 unless some valid trust or reject settings are present.
4932 *) Fix for blowfish EVP: its a variable length cipher.
4935 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4936 parameters in DSA public key structures and return an error in the
4937 DSA routines if parameters are absent.
4940 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4941 in the current directory if neither $RANDFILE nor $HOME was set.
4942 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4943 caused some confusion to Windows users who haven't defined $HOME.
4944 Thus RAND_file_name() is changed again: e_os.h can define a
4945 DEFAULT_HOME, which will be used if $HOME is not set.
4946 For Windows, we use "C:"; on other platforms, we still require
4947 environment variables.
4949 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4950 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4951 having multiple threads call RAND_poll() concurrently.
4954 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4955 combination of a flag and a thread ID variable.
4956 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4957 flag), *other* threads can enter ssleay_add_bytes without obeying
4958 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4959 that they do not hold after the first thread unsets add_do_not_lock).
4962 *) Change bctest again: '-x' expressions are not available in all
4966 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4968 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4969 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4971 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4972 the default extension for executables, if any. Also, make the perl
4973 scripts that use symlink() to test if it really exists and use "cp"
4974 if it doesn't. All this made OpenSSL compilable and installable in
4978 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4979 If SEQUENCE is length is indefinite just set c->slen to the total
4980 amount of data available.
4981 [Steve Henson, reported by shige@FreeBSD.org]
4982 [This change does not apply to 0.9.7.]
4984 *) Change bctest to avoid here-documents inside command substitution
4985 (workaround for FreeBSD /bin/sh bug).
4986 For compatibility with Ultrix, avoid shell functions (introduced
4987 in the bctest version that searches along $PATH).
4990 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4991 with des_encrypt() defined on some operating systems, like Solaris
4995 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4996 On the Importance of Eliminating Errors in Cryptographic
4997 Computations, J. Cryptology 14 (2001) 2, 101-119,
4998 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5001 *) MIPS assembler BIGNUM division bug fix.
5004 *) Disabled incorrect Alpha assembler code.
5007 *) Fix PKCS#7 decode routines so they correctly update the length
5008 after reading an EOC for the EXPLICIT tag.
5010 [This change does not apply to 0.9.7.]
5012 *) Fix bug in PKCS#12 key generation routines. This was triggered
5013 if a 3DES key was generated with a 0 initial byte. Include
5014 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5015 (but broken) behaviour.
5018 *) Enhance bctest to search for a working bc along $PATH and print
5020 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5022 *) Fix memory leaks in err.c: free err_data string if necessary;
5023 don't write to the wrong index in ERR_set_error_data.
5026 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5030 *) Replace rdtsc with _emit statements for VC++ version 5.
5031 [Jeremy Cooper <jeremy@baymoo.org>]
5033 *) Make it possible to reuse SSLv2 sessions.
5036 *) In copy_email() check for >= 0 as a return value for
5037 X509_NAME_get_index_by_NID() since 0 is a valid index.
5038 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5040 *) Avoid coredump with unsupported or invalid public keys by checking if
5041 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5042 PKCS7_verify() fails with non detached data.
5045 *) Don't use getenv in library functions when run as setuid/setgid.
5046 New function OPENSSL_issetugid().
5049 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5050 due to incorrect handling of multi-threading:
5052 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5054 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5056 3. Count how many times MemCheck_off() has been called so that
5057 nested use can be treated correctly. This also avoids
5058 inband-signalling in the previous code (which relied on the
5059 assumption that thread ID 0 is impossible).
5062 *) Add "-rand" option also to s_client and s_server.
5065 *) Fix CPU detection on Irix 6.x.
5066 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5067 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5069 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5072 [This change does not apply to 0.9.7.]
5074 *) Use the cached encoding of an X509_NAME structure rather than
5075 copying it. This is apparently the reason for the libsafe "errors"
5076 but the code is actually correct.
5079 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5080 Bleichenbacher's DSA attack.
5081 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5082 to be set and top=0 forces the highest bit to be set; top=-1 is new
5083 and leaves the highest bit random.
5084 [Ulf Moeller, Bodo Moeller]
5086 *) In the NCONF_...-based implementations for CONF_... queries
5087 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5088 a temporary CONF structure with the data component set to NULL
5089 (which gives segmentation faults in lh_retrieve).
5090 Instead, use NULL for the CONF pointer in CONF_get_string and
5091 CONF_get_number (which may use environment variables) and directly
5092 return NULL from CONF_get_section.
5095 *) Fix potential buffer overrun for EBCDIC.
5098 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5099 keyUsage if basicConstraints absent for a CA.
5102 *) Make SMIME_write_PKCS7() write mail header values with a format that
5103 is more generally accepted (no spaces before the semicolon), since
5104 some programs can't parse those values properly otherwise. Also make
5105 sure BIO's that break lines after each write do not create invalid
5109 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5110 macros previously used would not encode an empty SEQUENCE OF
5111 and break the signature.
5113 [This change does not apply to 0.9.7.]
5115 *) Zero the premaster secret after deriving the master secret in
5119 *) Add some EVP_add_digest_alias registrations (as found in
5120 OpenSSL_add_all_digests()) to SSL_library_init()
5121 aka OpenSSL_add_ssl_algorithms(). This provides improved
5122 compatibility with peers using X.509 certificates
5123 with unconventional AlgorithmIdentifier OIDs.
5126 *) Fix for Irix with NO_ASM.
5127 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5129 *) ./config script fixes.
5130 [Ulf Moeller, Richard Levitte]
5132 *) Fix 'openssl passwd -1'.
5135 *) Change PKCS12_key_gen_asc() so it can cope with non null
5136 terminated strings whose length is passed in the passlen
5137 parameter, for example from PEM callbacks. This was done
5138 by adding an extra length parameter to asc2uni().
5139 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5141 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5142 call failed, free the DSA structure.
5145 *) Fix to uni2asc() to cope with zero length Unicode strings.
5146 These are present in some PKCS#12 files.
5149 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5150 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5151 when writing a 32767 byte record.
5152 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5154 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5155 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5157 (RSA objects have a reference count access to which is protected
5158 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5159 so they are meant to be shared between threads.)
5160 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5161 "Reddie, Steven" <Steven.Reddie@ca.com>]
5163 *) Fix a deadlock in CRYPTO_mem_leaks().
5166 *) Use better test patterns in bntest.
5169 *) rand_win.c fix for Borland C.
5172 *) BN_rshift bugfix for n == 0.
5175 *) Add a 'bctest' script that checks for some known 'bc' bugs
5176 so that 'make test' does not abort just because 'bc' is broken.
5179 *) Store verify_result within SSL_SESSION also for client side to
5180 avoid potential security hole. (Re-used sessions on the client side
5181 always resulted in verify_result==X509_V_OK, not using the original
5182 result of the server certificate verification.)
5185 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5186 SSL3_RT_APPLICATION_DATA, return 0.
5187 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5191 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5192 releases, have been re-implemented by renaming the previous
5193 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5194 and ssl3_read_internal, respectively, and adding 'peek' parameters
5195 to them. The new ssl[23]_{read,peek} functions are calls to
5196 ssl[23]_read_internal with the 'peek' flag set appropriately.
5197 A 'peek' parameter has also been added to ssl3_read_bytes, which
5198 does the actual work for ssl3_read_internal.
5201 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5202 the method-specific "init()" handler. Also clean up ex_data after
5203 calling the method-specific "finish()" handler. Previously, this was
5204 happening the other way round.
5207 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5208 The previous value, 12, was not always sufficient for BN_mod_exp().
5211 *) Make sure that shared libraries get the internal name engine with
5212 the full version number and not just 0. This should mark the
5213 shared libraries as not backward compatible. Of course, this should
5214 be changed again when we can guarantee backward binary compatibility.
5217 *) Fix typo in get_cert_by_subject() in by_dir.c
5218 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5220 *) Rework the system to generate shared libraries:
5222 - Make note of the expected extension for the shared libraries and
5223 if there is a need for symbolic links from for example libcrypto.so.0
5224 to libcrypto.so.0.9.7. There is extended info in Configure for
5227 - Make as few rebuilds of the shared libraries as possible.
5229 - Still avoid linking the OpenSSL programs with the shared libraries.
5231 - When installing, install the shared libraries separately from the
5235 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5237 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5238 and not in SSL_clear because the latter is also used by the
5239 accept/connect functions; previously, the settings made by
5240 SSL_set_read_ahead would be lost during the handshake.
5241 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5243 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5244 Previously, it would create entries for disableed algorithms no
5248 *) Added several new manual pages for SSL_* function.
5251 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5253 *) In ssl23_get_client_hello, generate an error message when faced
5254 with an initial SSL 3.0/TLS record that is too small to contain the
5255 first two bytes of the ClientHello message, i.e. client_version.
5256 (Note that this is a pathologic case that probably has never happened
5257 in real life.) The previous approach was to use the version number
5258 from the record header as a substitute; but our protocol choice
5259 should not depend on that one because it is not authenticated
5260 by the Finished messages.
5263 *) More robust randomness gathering functions for Windows.
5264 [Jeffrey Altman <jaltman@columbia.edu>]
5266 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5267 not set then we don't setup the error code for issuer check errors
5268 to avoid possibly overwriting other errors which the callback does
5269 handle. If an application does set the flag then we assume it knows
5270 what it is doing and can handle the new informational codes
5274 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5275 a general "ANY" type, as such it should be able to decode anything
5276 including tagged types. However it didn't check the class so it would
5277 wrongly interpret tagged types in the same way as their universal
5278 counterpart and unknown types were just rejected. Changed so that the
5279 tagged and unknown types are handled in the same way as a SEQUENCE:
5280 that is the encoding is stored intact. There is also a new type
5281 "V_ASN1_OTHER" which is used when the class is not universal, in this
5282 case we have no idea what the actual type is so we just lump them all
5286 *) On VMS, stdout may very well lead to a file that is written to
5287 in a record-oriented fashion. That means that every write() will
5288 write a separate record, which will be read separately by the
5289 programs trying to read from it. This can be very confusing.
5291 The solution is to put a BIO filter in the way that will buffer
5292 text until a linefeed is reached, and then write everything a
5293 line at a time, so every record written will be an actual line,
5294 not chunks of lines and not (usually doesn't happen, but I've
5295 seen it once) several lines in one record. BIO_f_linebuffer() is
5298 Currently, it's a VMS-only method, because that's where it has
5299 been tested well enough.
5302 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5303 it can return incorrect results.
5304 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5305 but it was in 0.9.6-beta[12].)
5308 *) Disable the check for content being present when verifying detached
5309 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5310 include zero length content when signing messages.
5313 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5314 BIO_ctrl (for BIO pairs).
5317 *) Add DSO method for VMS.
5320 *) Bug fix: Montgomery multiplication could produce results with the
5324 *) Add RPM specification openssl.spec and modify it to build three
5325 packages. The default package contains applications, application
5326 documentation and run-time libraries. The devel package contains
5327 include files, static libraries and function documentation. The
5328 doc package contains the contents of the doc directory. The original
5329 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5332 *) Add a large number of documentation files for many SSL routines.
5333 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5335 *) Add a configuration entry for Sony News 4.
5336 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5338 *) Don't set the two most significant bits to one when generating a
5339 random number < q in the DSA library.
5342 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5343 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5344 the underlying transport is blocking) if a handshake took place.
5345 (The default behaviour is needed by applications such as s_client
5346 and s_server that use select() to determine when to use SSL_read;
5347 but for applications that know in advance when to expect data, it
5348 just makes things more complicated.)
5351 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5355 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5356 work better on such systems.
5357 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5359 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5360 Update PKCS12_parse() so it copies the friendlyName and the
5361 keyid to the certificates aux info.
5364 *) Fix bug in PKCS7_verify() which caused an infinite loop
5365 if there was more than one signature.
5366 [Sven Uszpelkat <su@celocom.de>]
5368 *) Major change in util/mkdef.pl to include extra information
5369 about each symbol, as well as presentig variables as well
5370 as functions. This change means that there's n more need
5371 to rebuild the .num files when some algorithms are excluded.
5374 *) Allow the verify time to be set by an application,
5375 rather than always using the current time.
5378 *) Phase 2 verify code reorganisation. The certificate
5379 verify code now looks up an issuer certificate by a
5380 number of criteria: subject name, authority key id
5381 and key usage. It also verifies self signed certificates
5382 by the same criteria. The main comparison function is
5383 X509_check_issued() which performs these checks.
5385 Lot of changes were necessary in order to support this
5386 without completely rewriting the lookup code.
5388 Authority and subject key identifier are now cached.
5390 The LHASH 'certs' is X509_STORE has now been replaced
5391 by a STACK_OF(X509_OBJECT). This is mainly because an
5392 LHASH can't store or retrieve multiple objects with
5393 the same hash value.
5395 As a result various functions (which were all internal
5396 use only) have changed to handle the new X509_STORE
5397 structure. This will break anything that messed round
5398 with X509_STORE internally.
5400 The functions X509_STORE_add_cert() now checks for an
5401 exact match, rather than just subject name.
5403 The X509_STORE API doesn't directly support the retrieval
5404 of multiple certificates matching a given criteria, however
5405 this can be worked round by performing a lookup first
5406 (which will fill the cache with candidate certificates)
5407 and then examining the cache for matches. This is probably
5408 the best we can do without throwing out X509_LOOKUP
5409 entirely (maybe later...).
5411 The X509_VERIFY_CTX structure has been enhanced considerably.
5413 All certificate lookup operations now go via a get_issuer()
5414 callback. Although this currently uses an X509_STORE it
5415 can be replaced by custom lookups. This is a simple way
5416 to bypass the X509_STORE hackery necessary to make this
5417 work and makes it possible to use more efficient techniques
5418 in future. A very simple version which uses a simple
5419 STACK for its trusted certificate store is also provided
5420 using X509_STORE_CTX_trusted_stack().
5422 The verify_cb() and verify() callbacks now have equivalents
5423 in the X509_STORE_CTX structure.
5425 X509_STORE_CTX also has a 'flags' field which can be used
5426 to customise the verify behaviour.
5429 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5430 excludes S/MIME capabilities.
5433 *) When a certificate request is read in keep a copy of the
5434 original encoding of the signed data and use it when outputing
5435 again. Signatures then use the original encoding rather than
5436 a decoded, encoded version which may cause problems if the
5437 request is improperly encoded.
5440 *) For consistency with other BIO_puts implementations, call
5441 buffer_write(b, ...) directly in buffer_puts instead of calling
5444 In BIO_puts, increment b->num_write as in BIO_write.
5445 [Peter.Sylvester@EdelWeb.fr]
5447 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5448 BN_zero, we may not return a BIGNUM with an array consisting of
5452 *) Avoid calling abort() from within the library when problems are
5453 detected, except if preprocessor symbols have been defined
5454 (such as REF_CHECK, BN_DEBUG etc.).
5457 *) New openssl application 'rsautl'. This utility can be
5458 used for low level RSA operations. DER public key
5459 BIO/fp routines also added.
5462 *) New Configure entry and patches for compiling on QNX 4.
5463 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5465 *) A demo state-machine implementation was sponsored by
5466 Nuron (http://www.nuron.com/) and is now available in
5467 demos/state_machine.
5470 *) New options added to the 'dgst' utility for signature
5471 generation and verification.
5474 *) Unrecognized PKCS#7 content types are now handled via a
5475 catch all ASN1_TYPE structure. This allows unsupported
5476 types to be stored as a "blob" and an application can
5477 encode and decode it manually.
5480 *) Fix various signed/unsigned issues to make a_strex.c
5482 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5484 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5485 length if passed a buffer. ASN1_INTEGER_to_BN failed
5486 if passed a NULL BN and its argument was negative.
5487 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5489 *) Modification to PKCS#7 encoding routines to output definite
5490 length encoding. Since currently the whole structures are in
5491 memory there's not real point in using indefinite length
5492 constructed encoding. However if OpenSSL is compiled with
5493 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5496 *) Added BIO_vprintf() and BIO_vsnprintf().
5499 *) Added more prefixes to parse for in the the strings written
5500 through a logging bio, to cover all the levels that are available
5501 through syslog. The prefixes are now:
5503 PANIC, EMERG, EMR => LOG_EMERG
5504 ALERT, ALR => LOG_ALERT
5505 CRIT, CRI => LOG_CRIT
5506 ERROR, ERR => LOG_ERR
5507 WARNING, WARN, WAR => LOG_WARNING
5508 NOTICE, NOTE, NOT => LOG_NOTICE
5509 INFO, INF => LOG_INFO
5510 DEBUG, DBG => LOG_DEBUG
5512 and as before, if none of those prefixes are present at the
5513 beginning of the string, LOG_ERR is chosen.
5515 On Win32, the LOG_* levels are mapped according to this:
5517 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5518 LOG_WARNING => EVENTLOG_WARNING_TYPE
5519 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5523 *) Made it possible to reconfigure with just the configuration
5524 argument "reconf" or "reconfigure". The command line arguments
5525 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5526 and are retrieved from there when reconfiguring.
5530 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5532 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5535 *) The obj_dat.pl script was messing up the sorting of object
5536 names. The reason was that it compared the quoted version
5537 of strings as a result "OCSP" > "OCSP Signing" because
5538 " > SPACE. Changed script to store unquoted versions of
5539 names and add quotes on output. It was also omitting some
5540 names from the lookup table if they were given a default
5541 value (that is if SN is missing it is given the same
5542 value as LN and vice versa), these are now added on the
5543 grounds that if an object has a name we should be able to
5544 look it up. Finally added warning output when duplicate
5545 short or long names are found.
5548 *) Changes needed for Tandem NSK.
5549 [Scott Uroff <scott@xypro.com>]
5551 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5552 RSA_padding_check_SSLv23(), special padding was never detected
5553 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5554 version rollback attacks was not effective.
5556 In s23_clnt.c, don't use special rollback-attack detection padding
5557 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5558 client; similarly, in s23_srvr.c, don't do the rollback check if
5559 SSL 2.0 is the only protocol enabled in the server.
5562 *) Make it possible to get hexdumps of unprintable data with 'openssl
5563 asn1parse'. By implication, the functions ASN1_parse_dump() and
5564 BIO_dump_indent() are added.
5567 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5568 these print out strings and name structures based on various
5569 flags including RFC2253 support and proper handling of
5570 multibyte characters. Added options to the 'x509' utility
5571 to allow the various flags to be set.
5574 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5575 Also change the functions X509_cmp_current_time() and
5576 X509_gmtime_adj() work with an ASN1_TIME structure,
5577 this will enable certificates using GeneralizedTime in validity
5578 dates to be checked.
5581 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5582 negative public key encodings) on by default,
5583 NO_NEG_PUBKEY_BUG can be set to disable it.
5586 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5587 content octets. An i2c_ASN1_OBJECT is unnecessary because
5588 the encoding can be trivially obtained from the structure.
5591 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5592 not read locks (CRYPTO_r_[un]lock).
5595 *) A first attempt at creating official support for shared
5596 libraries through configuration. I've kept it so the
5597 default is static libraries only, and the OpenSSL programs
5598 are always statically linked for now, but there are
5599 preparations for dynamic linking in place.
5600 This has been tested on Linux and Tru64.
5603 *) Randomness polling function for Win9x, as described in:
5604 Peter Gutmann, Software Generation of Practically Strong
5608 *) Fix so PRNG is seeded in req if using an already existing
5612 *) New options to smime application. -inform and -outform
5613 allow alternative formats for the S/MIME message including
5614 PEM and DER. The -content option allows the content to be
5615 specified separately. This should allow things like Netscape
5616 form signing output easier to verify.
5619 *) Fix the ASN1 encoding of tags using the 'long form'.
5622 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5623 STRING types. These convert content octets to and from the
5624 underlying type. The actual tag and length octets are
5625 already assumed to have been read in and checked. These
5626 are needed because all other string types have virtually
5627 identical handling apart from the tag. By having versions
5628 of the ASN1 functions that just operate on content octets
5629 IMPLICIT tagging can be handled properly. It also allows
5630 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5631 and ASN1_INTEGER are identical apart from the tag.
5634 *) Change the handling of OID objects as follows:
5636 - New object identifiers are inserted in objects.txt, following
5637 the syntax given in objects.README.
5638 - objects.pl is used to process obj_mac.num and create a new
5640 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5643 This is currently kind of a hack, and the perl code in objects.pl
5644 isn't very elegant, but it works as I intended. The simplest way
5645 to check that it worked correctly is to look in obj_dat.h and
5646 check the array nid_objs and make sure the objects haven't moved
5647 around (this is important!). Additions are OK, as well as
5648 consistent name changes.
5651 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5654 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5655 The given file adds to whatever has already been seeded into the
5656 random pool through the RANDFILE configuration file option or
5657 environment variable, or the default random state file.
5660 *) mkstack.pl now sorts each macro group into lexical order.
5661 Previously the output order depended on the order the files
5662 appeared in the directory, resulting in needless rewriting
5666 *) Patches to make OpenSSL compile under Win32 again. Mostly
5667 work arounds for the VC++ problem that it treats func() as
5668 func(void). Also stripped out the parts of mkdef.pl that
5669 added extra typesafe functions: these no longer exist.
5672 *) Reorganisation of the stack code. The macros are now all
5673 collected in safestack.h . Each macro is defined in terms of
5674 a "stack macro" of the form SKM_<name>(type, a, b). The
5675 DEBUG_SAFESTACK is now handled in terms of function casts,
5676 this has the advantage of retaining type safety without the
5677 use of additional functions. If DEBUG_SAFESTACK is not defined
5678 then the non typesafe macros are used instead. Also modified the
5679 mkstack.pl script to handle the new form. Needs testing to see
5680 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5681 the default if no major problems. Similar behaviour for ASN1_SET_OF
5682 and PKCS12_STACK_OF.
5685 *) When some versions of IIS use the 'NET' form of private key the
5686 key derivation algorithm is different. Normally MD5(password) is
5687 used as a 128 bit RC4 key. In the modified case
5688 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5689 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5690 as the old Netscape_RSA functions except they have an additional
5691 'sgckey' parameter which uses the modified algorithm. Also added
5692 an -sgckey command line option to the rsa utility. Thanks to
5693 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5694 algorithm to openssl-dev.
5697 *) The evp_local.h macros were using 'c.##kname' which resulted in
5698 invalid expansion on some systems (SCO 5.0.5 for example).
5699 Corrected to 'c.kname'.
5700 [Phillip Porch <root@theporch.com>]
5702 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5703 a STACK of email addresses from a certificate or request, these look
5704 in the subject name and the subject alternative name extensions and
5705 omit any duplicate addresses.
5708 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5709 This makes DSA verification about 2 % faster.
5712 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5713 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5714 plus overhead for 1024 bit moduli).
5715 This makes exponentiations about 0.5 % faster for 1024 bit
5716 exponents (as measured by "openssl speed rsa2048").
5719 *) Rename memory handling macros to avoid conflicts with other
5721 Malloc => OPENSSL_malloc
5722 Malloc_locked => OPENSSL_malloc_locked
5723 Realloc => OPENSSL_realloc
5724 Free => OPENSSL_free
5727 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5728 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5731 *) CygWin32 support.
5732 [John Jarvie <jjarvie@newsguy.com>]
5734 *) The type-safe stack code has been rejigged. It is now only compiled
5735 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5736 by default all type-specific stack functions are "#define"d back to
5737 standard stack functions. This results in more streamlined output
5738 but retains the type-safety checking possibilities of the original
5742 *) The STACK code has been cleaned up, and certain type declarations
5743 that didn't make a lot of sense have been brought in line. This has
5744 also involved a cleanup of sorts in safestack.h to more correctly
5745 map type-safe stack functions onto their plain stack counterparts.
5746 This work has also resulted in a variety of "const"ifications of
5747 lots of the code, especially "_cmp" operations which should normally
5748 be prototyped with "const" parameters anyway.
5751 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5752 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5753 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5754 where all of 'md' is used each time the PRNG is used, but 'state'
5755 is used only indexed by a cyclic counter. As entropy may not be
5756 well distributed from the beginning, 'md' is important as a
5757 chaining variable. However, the output function chains only half
5758 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5759 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5760 in all of 'state' being rewritten, with the new values depending
5761 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5764 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5765 the handshake is continued after ssl_verify_cert_chain();
5766 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5767 can lead to 'unexplainable' connection aborts later.
5768 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5770 *) Major EVP API cipher revision.
5771 Add hooks for extra EVP features. This allows various cipher
5772 parameters to be set in the EVP interface. Support added for variable
5773 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5774 setting of RC2 and RC5 parameters.
5776 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5779 Remove lots of duplicated code from the EVP library. For example *every*
5780 cipher init() function handles the 'iv' in the same way according to the
5781 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5782 for CFB and OFB modes they zero ctx->num.
5784 New functionality allows removal of S/MIME code RC2 hack.
5786 Most of the routines have the same form and so can be declared in terms
5789 By shifting this to the top level EVP_CipherInit() it can be removed from
5790 all individual ciphers. If the cipher wants to handle IVs or keys
5791 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5794 Change lots of functions like EVP_EncryptUpdate() to now return a
5795 value: although software versions of the algorithms cannot fail
5796 any installed hardware versions can.
5799 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5800 this option is set, tolerate broken clients that send the negotiated
5801 protocol version number instead of the requested protocol version
5805 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5806 i.e. non-zero for export ciphersuites, zero otherwise.
5807 Previous versions had this flag inverted, inconsistent with
5808 rsa_tmp_cb (..._TMP_RSA_CB).
5809 [Bodo Moeller; problem reported by Amit Chopra]
5811 *) Add missing DSA library text string. Work around for some IIS
5812 key files with invalid SEQUENCE encoding.
5815 *) Add a document (doc/standards.txt) that list all kinds of standards
5816 and so on that are implemented in OpenSSL.
5819 *) Enhance c_rehash script. Old version would mishandle certificates
5820 with the same subject name hash and wouldn't handle CRLs at all.
5821 Added -fingerprint option to crl utility, to support new c_rehash
5825 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5828 *) Fix for SSL server purpose checking. Server checking was
5829 rejecting certificates which had extended key usage present
5830 but no ssl client purpose.
5831 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5833 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5834 is a little unclear about how a blank password is handled.
5835 Since the password in encoded as a BMPString with terminating
5836 double NULL a zero length password would end up as just the
5837 double NULL. However no password at all is different and is
5838 handled differently in the PKCS#12 key generation code. NS
5839 treats a blank password as zero length. MSIE treats it as no
5840 password on export: but it will try both on import. We now do
5841 the same: PKCS12_parse() tries zero length and no password if
5842 the password is set to "" or NULL (NULL is now a valid password:
5843 it wasn't before) as does the pkcs12 application.
5846 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5847 perror when PEM_read_bio_X509_REQ fails, the error message must
5848 be obtained from the error queue.
5851 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5852 it in ERR_remove_state if appropriate, and change ERR_get_state
5853 accordingly to avoid race conditions (this is necessary because
5854 thread_hash is no longer constant once set).
5857 *) Bugfix for linux-elf makefile.one.
5860 *) RSA_get_default_method() will now cause a default
5861 RSA_METHOD to be chosen if one doesn't exist already.
5862 Previously this was only set during a call to RSA_new()
5863 or RSA_new_method(NULL) meaning it was possible for
5864 RSA_get_default_method() to return NULL.
5867 *) Added native name translation to the existing DSO code
5868 that will convert (if the flag to do so is set) filenames
5869 that are sufficiently small and have no path information
5870 into a canonical native form. Eg. "blah" converted to
5871 "libblah.so" or "blah.dll" etc.
5874 *) New function ERR_error_string_n(e, buf, len) which is like
5875 ERR_error_string(e, buf), but writes at most 'len' bytes
5876 including the 0 terminator. For ERR_error_string_n, 'buf'
5878 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5880 *) CONF library reworked to become more general. A new CONF
5881 configuration file reader "class" is implemented as well as a
5882 new functions (NCONF_*, for "New CONF") to handle it. The now
5883 old CONF_* functions are still there, but are reimplemented to
5884 work in terms of the new functions. Also, a set of functions
5885 to handle the internal storage of the configuration data is
5886 provided to make it easier to write new configuration file
5887 reader "classes" (I can definitely see something reading a
5888 configuration file in XML format, for example), called _CONF_*,
5889 or "the configuration storage API"...
5891 The new configuration file reading functions are:
5893 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5894 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5896 NCONF_default, NCONF_WIN32
5898 NCONF_dump_fp, NCONF_dump_bio
5900 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5901 NCONF_new creates a new CONF object. This works in the same way
5902 as other interfaces in OpenSSL, like the BIO interface.
5903 NCONF_dump_* dump the internal storage of the configuration file,
5904 which is useful for debugging. All other functions take the same
5905 arguments as the old CONF_* functions wth the exception of the
5906 first that must be a `CONF *' instead of a `LHASH *'.
5908 To make it easer to use the new classes with the old CONF_* functions,
5909 the function CONF_set_default_method is provided.
5912 *) Add '-tls1' option to 'openssl ciphers', which was already
5913 mentioned in the documentation but had not been implemented.
5914 (This option is not yet really useful because even the additional
5915 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5918 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5919 OpenSSL-based applications) load shared libraries and bind to
5920 them in a portable way.
5921 [Geoff Thorpe, with contributions from Richard Levitte]
5923 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5925 *) Make sure _lrotl and _lrotr are only used with MSVC.
5927 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5928 (the default implementation of RAND_status).
5930 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5931 to '-clrext' (= clear extensions), as intended and documented.
5932 [Bodo Moeller; inconsistency pointed out by Michael Attili
5935 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5936 was larger than the MD block size.
5937 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5939 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5940 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5941 using the passed key: if the passed key was a private key the result
5942 of X509_print(), for example, would be to print out all the private key
5946 *) des_quad_cksum() byte order bug fix.
5947 [Ulf Möller, using the problem description in krb4-0.9.7, where
5948 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5950 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5952 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5954 *) For easily testing in shell scripts whether some command
5955 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5956 returns with exit code 0 iff no command of the given name is available.
5957 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5958 the output goes to stdout and nothing is printed to stderr.
5959 Additional arguments are always ignored.
5961 Since for each cipher there is a command of the same name,
5962 the 'no-cipher' compilation switches can be tested this way.
5964 ('openssl no-XXX' is not able to detect pseudo-commands such
5965 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5968 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5971 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5972 is set; it will be thrown away anyway because each handshake creates
5974 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5975 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5976 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5977 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5980 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5981 'Q' and 'R' lose their special meanings (quit/renegotiate).
5982 This is part of what -quiet does; unlike -quiet, -ign_eof
5983 does not suppress any output.
5986 *) Add compatibility options to the purpose and trust code. The
5987 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5988 accepts a certificate or CA, this was the previous behaviour,
5989 with all the associated security issues.
5991 X509_TRUST_COMPAT is the old trust behaviour: only and
5992 automatically trust self signed roots in certificate store. A
5993 new trust setting X509_TRUST_DEFAULT is used to specify that
5994 a purpose has no associated trust setting and it should instead
5995 use the value in the default purpose.
5998 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5999 and fix a memory leak.
6002 *) In util/mkerr.pl (which implements 'make errors'), preserve
6003 reason strings from the previous version of the .c file, as
6004 the default to have only downcase letters (and digits) in
6005 automatically generated reasons codes is not always appropriate.
6008 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6009 using strerror. Previously, ERR_reason_error_string() returned
6010 library names as reason strings for SYSerr; but SYSerr is a special
6011 case where small numbers are errno values, not library numbers.
6014 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6015 converts DSA parameters into DH parameters. (When creating parameters,
6016 DSA_generate_parameters is used.)
6019 *) Include 'length' (recommended exponent length) in C code generated
6020 by 'openssl dhparam -C'.
6023 *) The second argument to set_label in perlasm was already being used
6024 so couldn't be used as a "file scope" flag. Moved to third argument
6028 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6029 instead of RAND_bytes for encryption IVs and salts.
6032 *) Include RAND_status() into RAND_METHOD instead of implementing
6033 it only for md_rand.c Otherwise replacing the PRNG by calling
6034 RAND_set_rand_method would be impossible.
6037 *) Don't let DSA_generate_key() enter an infinite loop if the random
6038 number generation fails.
6041 *) New 'rand' application for creating pseudo-random output.
6044 *) Added configuration support for Linux/IA64
6045 [Rolf Haberrecker <rolf@suse.de>]
6047 *) Assembler module support for Mingw32.
6050 *) Shared library support for HPUX (in shlib/).
6051 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6053 *) Shared library support for Solaris gcc.
6054 [Lutz Behnke <behnke@trustcenter.de>]
6056 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6058 *) PKCS7_encrypt() was adding text MIME headers twice because they
6059 were added manually and by SMIME_crlf_copy().
6062 *) In bntest.c don't call BN_rand with zero bits argument.
6063 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6065 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6066 case was implemented. This caused BN_div_recp() to fail occasionally.
6069 *) Add an optional second argument to the set_label() in the perl
6070 assembly language builder. If this argument exists and is set
6071 to 1 it signals that the assembler should use a symbol whose
6072 scope is the entire file, not just the current function. This
6073 is needed with MASM which uses the format label:: for this scope.
6074 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6076 *) Change the ASN1 types so they are typedefs by default. Before
6077 almost all types were #define'd to ASN1_STRING which was causing
6078 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6082 *) Change names of new functions to the new get1/get0 naming
6083 convention: After 'get1', the caller owns a reference count
6084 and has to call ..._free; 'get0' returns a pointer to some
6085 data structure without incrementing reference counters.
6086 (Some of the existing 'get' functions increment a reference
6087 counter, some don't.)
6088 Similarly, 'set1' and 'add1' functions increase reference
6089 counters or duplicate objects.
6092 *) Allow for the possibility of temp RSA key generation failure:
6093 the code used to assume it always worked and crashed on failure.
6096 *) Fix potential buffer overrun problem in BIO_printf().
6097 [Ulf Möller, using public domain code by Patrick Powell; problem
6098 pointed out by David Sacerdote <das33@cornell.edu>]
6100 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6101 RAND_egd() and RAND_status(). In the command line application,
6102 the EGD socket can be specified like a seed file using RANDFILE
6106 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6107 Some CAs (e.g. Verisign) distribute certificates in this form.
6110 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6111 list to exclude them. This means that no special compilation option
6112 is needed to use anonymous DH: it just needs to be included in the
6116 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6117 EVP_MD_type. The old functionality is available in a new macro called
6118 EVP_MD_md(). Change code that uses it and update docs.
6121 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6122 where the 'void *' argument is replaced by a function pointer argument.
6123 Previously 'void *' was abused to point to functions, which works on
6124 many platforms, but is not correct. As these functions are usually
6125 called by macros defined in OpenSSL header files, most source code
6126 should work without changes.
6129 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6130 sections with information on -D... compiler switches used for
6131 compiling the library so that applications can see them. To enable
6132 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6133 must be defined. E.g.,
6134 #define OPENSSL_ALGORITHM_DEFINES
6135 #include <openssl/opensslconf.h>
6136 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6137 [Richard Levitte, Ulf and Bodo Möller]
6139 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6143 *) Change the 'other' type in certificate aux info to a STACK_OF
6144 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6145 the required ASN1 format: arbitrary types determined by an OID.
6148 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6149 argument to 'req'. This is not because the function is newer or
6150 better than others it just uses the work 'NEW' in the certificate
6151 request header lines. Some software needs this.
6154 *) Reorganise password command line arguments: now passwords can be
6155 obtained from various sources. Delete the PEM_cb function and make
6156 it the default behaviour: i.e. if the callback is NULL and the
6157 usrdata argument is not NULL interpret it as a null terminated pass
6158 phrase. If usrdata and the callback are NULL then the pass phrase
6159 is prompted for as usual.
6162 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6163 the support is automatically enabled. The resulting binaries will
6164 autodetect the card and use it if present.
6165 [Ben Laurie and Compaq Inc.]
6167 *) Work around for Netscape hang bug. This sends certificate request
6168 and server done in one record. Since this is perfectly legal in the
6169 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6170 the bugs/SSLv3 entry for more info.
6173 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6176 *) Add -rand argument to smime and pkcs12 applications and read/write
6180 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6183 *) Add command line password options to the remaining applications.
6186 *) Bug fix for BN_div_recp() for numerators with an even number of
6190 *) More tests in bntest.c, and changed test_bn output.
6193 *) ./config recognizes MacOS X now.
6196 *) Bug fix for BN_div() when the first words of num and divsor are
6197 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6200 *) Add support for various broken PKCS#8 formats, and command line
6201 options to produce them.
6204 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6205 get temporary BIGNUMs from a BN_CTX.
6208 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6212 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6213 include a #define from the old name to the new. The original intent
6214 was that statically linked binaries could for example just call
6215 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6216 link with digests. This never worked becayse SSLeay_add_all_digests()
6217 and SSLeay_add_all_ciphers() were in the same source file so calling
6218 one would link with the other. They are now in separate source files.
6221 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6224 *) Use a less unusual form of the Miller-Rabin primality test (it used
6225 a binary algorithm for exponentiation integrated into the Miller-Rabin
6226 loop, our standard modexp algorithms are faster).
6229 *) Support for the EBCDIC character set completed.
6230 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6232 *) Source code cleanups: use const where appropriate, eliminate casts,
6233 use void * instead of char * in lhash.
6236 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6237 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6238 this the server could overwrite ephemeral keys that the client
6242 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6243 using 50 iterations of the Rabin-Miller test.
6245 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6246 iterations of the Rabin-Miller test as required by the appendix
6247 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6248 As BN_is_prime_fasttest includes trial division, DSA parameter
6249 generation becomes much faster.
6251 This implies a change for the callback functions in DSA_is_prime
6252 and DSA_generate_parameters: The callback function is called once
6253 for each positive witness in the Rabin-Miller test, not just
6254 occasionally in the inner loop; and the parameters to the
6255 callback function now provide an iteration count for the outer
6256 loop rather than for the current invocation of the inner loop.
6257 DSA_generate_parameters additionally can call the callback
6258 function with an 'iteration count' of -1, meaning that a
6259 candidate has passed the trial division test (when q is generated
6260 from an application-provided seed, trial division is skipped).
6263 *) New function BN_is_prime_fasttest that optionally does trial
6264 division before starting the Rabin-Miller test and has
6265 an additional BN_CTX * argument (whereas BN_is_prime always
6266 has to allocate at least one BN_CTX).
6267 'callback(1, -1, cb_arg)' is called when a number has passed the
6268 trial division stage.
6271 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6275 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6278 *) New function BN_pseudo_rand().
6281 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6282 bignum version of BN_from_montgomery() with the working code from
6283 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6287 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6288 made it impossible to use the same SSL_SESSION data structure in
6289 SSL2 clients in multiple threads.
6292 *) The return value of RAND_load_file() no longer counts bytes obtained
6293 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6294 to seed the PRNG (previously an explicit byte count was required).
6295 [Ulf Möller, Bodo Möller]
6297 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6298 used (char *) instead of (void *) and had casts all over the place.
6301 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6304 *) Retain source code compatibility for BN_prime_checks macro:
6305 BN_is_prime(..., BN_prime_checks, ...) now uses
6306 BN_prime_checks_for_size to determine the appropriate number of
6307 Rabin-Miller iterations.
6310 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6311 DH_CHECK_P_NOT_SAFE_PRIME.
6312 (Check if this is true? OpenPGP calls them "strong".)
6315 *) Merge the functionality of "dh" and "gendh" programs into a new program
6316 "dhparam". The old programs are retained for now but will handle DH keys
6317 (instead of parameters) in future.
6320 *) Make the ciphers, s_server and s_client programs check the return values
6321 when a new cipher list is set.
6324 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6325 ciphers. Before when the 56bit ciphers were enabled the sorting was
6328 The syntax for the cipher sorting has been extended to support sorting by
6329 cipher-strength (using the strength_bits hard coded in the tables).
6330 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6332 Fix a bug in the cipher-command parser: when supplying a cipher command
6333 string with an "undefined" symbol (neither command nor alphanumeric
6334 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6335 an error is flagged.
6337 Due to the strength-sorting extension, the code of the
6338 ssl_create_cipher_list() function was completely rearranged. I hope that
6339 the readability was also increased :-)
6340 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6342 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6343 for the first serial number and places 2 in the serial number file. This
6344 avoids problems when the root CA is created with serial number zero and
6345 the first user certificate has the same issuer name and serial number
6349 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6350 the new code. Add documentation for this stuff.
6353 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6354 X509_*() to X509at_*() on the grounds that they don't handle X509
6355 structures and behave in an analagous way to the X509v3 functions:
6356 they shouldn't be called directly but wrapper functions should be used
6359 So we also now have some wrapper functions that call the X509at functions
6360 when passed certificate requests. (TO DO: similar things can be done with
6361 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6362 things. Some of these need some d2i or i2d and print functionality
6363 because they handle more complex structures.)
6366 *) Add missing #ifndefs that caused missing symbols when building libssl
6367 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6368 NO_RSA in ssl/s2*.c.
6369 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6371 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6372 has a return value which indicates the quality of the random data
6373 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6374 error queue. New function RAND_pseudo_bytes() generates output that is
6375 guaranteed to be unique but not unpredictable. RAND_add is like
6376 RAND_seed, but takes an extra argument for an entropy estimate
6377 (RAND_seed always assumes full entropy).
6380 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6381 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6382 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6383 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6384 false-positive rate of at most 2^-80 for random input.
6387 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6390 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6391 in the 0.9.5 release), this returns the chain
6392 from an X509_CTX structure with a dup of the stack and all
6393 the X509 reference counts upped: so the stack will exist
6394 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6397 Also make SSL_SESSION_print() print out the verify return
6401 *) Add manpage for the pkcs12 command. Also change the default
6402 behaviour so MAC iteration counts are used unless the new
6403 -nomaciter option is used. This improves file security and
6404 only older versions of MSIE (4.0 for example) need it.
6407 *) Honor the no-xxx Configure options when creating .DEF files.
6410 *) Add PKCS#10 attributes to field table: challengePassword,
6411 unstructuredName and unstructuredAddress. These are taken from
6412 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6413 international characters are used.
6415 More changes to X509_ATTRIBUTE code: allow the setting of types
6416 based on strings. Remove the 'loc' parameter when adding
6417 attributes because these will be a SET OF encoding which is sorted
6421 *) Initial changes to the 'req' utility to allow request generation
6422 automation. This will allow an application to just generate a template
6423 file containing all the field values and have req construct the
6426 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6427 used all over the place including certificate requests and PKCS#7
6428 structures. They are currently handled manually where necessary with
6429 some primitive wrappers for PKCS#7. The new functions behave in a
6430 manner analogous to the X509 extension functions: they allow
6431 attributes to be looked up by NID and added.
6433 Later something similar to the X509V3 code would be desirable to
6434 automatically handle the encoding, decoding and printing of the
6435 more complex types. The string types like challengePassword can
6436 be handled by the string table functions.
6438 Also modified the multi byte string table handling. Now there is
6439 a 'global mask' which masks out certain types. The table itself
6440 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6441 is useful when for example there is only one permissible type
6442 (as in countryName) and using the mask might result in no valid
6446 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6447 SSL_get_peer_finished to allow applications to obtain the latest
6448 Finished messages sent to the peer or expected from the peer,
6449 respectively. (SSL_get_peer_finished is usually the Finished message
6450 actually received from the peer, otherwise the protocol will be aborted.)
6452 As the Finished message are message digests of the complete handshake
6453 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6454 be used for external authentication procedures when the authentication
6455 provided by SSL/TLS is not desired or is not enough.
6458 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6459 the host supports BWX extension and if Compaq C is present on the
6460 $PATH. Just exploiting of the BWX extension results in 20-30%
6461 performance kick for some algorithms, e.g. DES and RC4 to mention
6462 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6466 *) Add support for MS "fast SGC". This is arguably a violation of the
6467 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6468 weak crypto and after checking the certificate is SGC a second one
6469 with strong crypto. MS SGC stops the first handshake after receiving
6470 the server certificate message and sends a second client hello. Since
6471 a server will typically do all the time consuming operations before
6472 expecting any further messages from the client (server key exchange
6473 is the most expensive) there is little difference between the two.
6475 To get OpenSSL to support MS SGC we have to permit a second client
6476 hello message after we have sent server done. In addition we have to
6477 reset the MAC if we do get this second client hello.
6480 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6481 if a DER encoded private key is RSA or DSA traditional format. Changed
6482 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6483 format DER encoded private key. Newer code should use PKCS#8 format which
6484 has the key type encoded in the ASN1 structure. Added DER private key
6485 support to pkcs8 application.
6488 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6489 ciphersuites has been selected (as required by the SSL 3/TLS 1
6490 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6491 is set, we interpret this as a request to violate the specification
6492 (the worst that can happen is a handshake failure, and 'correct'
6493 behaviour would result in a handshake failure anyway).
6496 *) In SSL_CTX_add_session, take into account that there might be multiple
6497 SSL_SESSION structures with the same session ID (e.g. when two threads
6498 concurrently obtain them from an external cache).
6499 The internal cache can handle only one SSL_SESSION with a given ID,
6500 so if there's a conflict, we now throw out the old one to achieve
6504 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6505 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6506 some routines that use cipher OIDs: some ciphers do not have OIDs
6507 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6511 *) Simplify the trust setting structure and code. Now we just have
6512 two sequences of OIDs for trusted and rejected settings. These will
6513 typically have values the same as the extended key usage extension
6514 and any application specific purposes.
6516 The trust checking code now has a default behaviour: it will just
6517 check for an object with the same NID as the passed id. Functions can
6518 be provided to override either the default behaviour or the behaviour
6519 for a given id. SSL client, server and email already have functions
6520 in place for compatibility: they check the NID and also return "trusted"
6521 if the certificate is self signed.
6524 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6525 traditional format into an EVP_PKEY structure.
6528 *) Add a password callback function PEM_cb() which either prompts for
6529 a password if usr_data is NULL or otherwise assumes it is a null
6530 terminated password. Allow passwords to be passed on command line
6531 environment or config files in a few more utilities.
6534 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6535 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6536 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6537 Update documentation.
6540 *) Support for ASN1 "NULL" type. This could be handled before by using
6541 ASN1_TYPE but there wasn't any function that would try to read a NULL
6542 and produce an error if it couldn't. For compatibility we also have
6543 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6544 don't allocate anything because they don't need to.
6547 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6549 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6551 *) Rebuild of the memory allocation routines used by OpenSSL code and
6552 possibly others as well. The purpose is to make an interface that
6553 provide hooks so anyone can build a separate set of allocation and
6554 deallocation routines to be used by OpenSSL, for example memory
6555 pool implementations, or something else, which was previously hard
6556 since Malloc(), Realloc() and Free() were defined as macros having
6557 the values malloc, realloc and free, respectively (except for Win32
6558 compilations). The same is provided for memory debugging code.
6559 OpenSSL already comes with functionality to find memory leaks, but
6560 this gives people a chance to debug other memory problems.
6562 With these changes, a new set of functions and macros have appeared:
6564 CRYPTO_set_mem_debug_functions() [F]
6565 CRYPTO_get_mem_debug_functions() [F]
6566 CRYPTO_dbg_set_options() [F]
6567 CRYPTO_dbg_get_options() [F]
6568 CRYPTO_malloc_debug_init() [M]
6570 The memory debug functions are NULL by default, unless the library
6571 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6572 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6573 gives the standard debugging functions that come with OpenSSL) or
6574 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6575 provided by the library user) must be used. When the standard
6576 debugging functions are used, CRYPTO_dbg_set_options can be used to
6577 request additional information:
6578 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6579 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6581 Also, things like CRYPTO_set_mem_functions will always give the
6582 expected result (the new set of functions is used for allocation
6583 and deallocation) at all times, regardless of platform and compiler
6586 To finish it up, some functions that were never use in any other
6587 way than through macros have a new API and new semantic:
6590 CRYPTO_dbg_realloc()
6593 All macros of value have retained their old syntax.
6594 [Richard Levitte and Bodo Moeller]
6596 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6597 ordering of SMIMECapabilities wasn't in "strength order" and there
6598 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6602 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6603 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6604 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6606 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6607 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6608 functionality to handle multipart/signed properly) and a utility
6609 called 'smime' to call all this stuff. This is based on code I
6610 originally wrote for Celo who have kindly allowed it to be
6611 included in OpenSSL.
6614 *) Add variants des_set_key_checked and des_set_key_unchecked of
6615 des_set_key (aka des_key_sched). Global variable des_check_key
6616 decides which of these is called by des_set_key; this way
6617 des_check_key behaves as it always did, but applications and
6618 the library itself, which was buggy for des_check_key == 1,
6619 have a cleaner way to pick the version they need.
6622 *) New function PKCS12_newpass() which changes the password of a
6626 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6627 dynamic mix. In both cases the ids can be used as an index into the
6628 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6629 functions so they accept a list of the field values and the
6630 application doesn't need to directly manipulate the X509_TRUST
6634 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6638 *) Modify the way the V3 extension code looks up extensions. This now
6639 works in a similar way to the object code: we have some "standard"
6640 extensions in a static table which is searched with OBJ_bsearch()
6641 and the application can add dynamic ones if needed. The file
6642 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6643 updated whenever a new extension is added to the core code and kept
6644 in ext_nid order. There is a simple program 'tabtest.c' which checks
6645 this. New extensions are not added too often so this file can readily
6646 be maintained manually.
6648 There are two big advantages in doing things this way. The extensions
6649 can be looked up immediately and no longer need to be "added" using
6650 X509V3_add_standard_extensions(): this function now does nothing.
6651 [Side note: I get *lots* of email saying the extension code doesn't
6652 work because people forget to call this function]
6653 Also no dynamic allocation is done unless new extensions are added:
6654 so if we don't add custom extensions there is no need to call
6655 X509V3_EXT_cleanup().
6658 *) Modify enc utility's salting as follows: make salting the default. Add a
6659 magic header, so unsalted files fail gracefully instead of just decrypting
6660 to garbage. This is because not salting is a big security hole, so people
6661 should be discouraged from doing it.
6664 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6665 digest to be passed on the command line but it only used this
6666 parameter when signing a certificate. Modified so all relevant
6667 operations are affected by the digest parameter including the
6668 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6669 DSA key was used because it didn't fix the digest.
6672 *) Initial certificate chain verify code. Currently tests the untrusted
6673 certificates for consistency with the verify purpose (which is set
6674 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6676 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6677 this is because it will reject chains with invalid extensions whereas
6678 every previous version of OpenSSL and SSLeay made no checks at all.
6680 Trust code: checks the root CA for the relevant trust settings. Trust
6681 settings have an initial value consistent with the verify purpose: e.g.
6682 if the verify purpose is for SSL client use it expects the CA to be
6683 trusted for SSL client use. However the default value can be changed to
6684 permit custom trust settings: one example of this would be to only trust
6685 certificates from a specific "secure" set of CAs.
6687 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6688 which should be used for version portability: especially since the
6689 verify structure is likely to change more often now.
6691 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6692 to set them. If not set then assume SSL clients will verify SSL servers
6695 Two new options to the verify program: -untrusted allows a set of
6696 untrusted certificates to be passed in and -purpose which sets the
6697 intended purpose of the certificate. If a purpose is set then the
6698 new chain verify code is used to check extension consistency.
6701 *) Support for the authority information access extension.
6704 *) Modify RSA and DSA PEM read routines to transparently handle
6705 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6706 public keys in a format compatible with certificate
6707 SubjectPublicKeyInfo structures. Unfortunately there were already
6708 functions called *_PublicKey_* which used various odd formats so
6709 these are retained for compatibility: however the DSA variants were
6710 never in a public release so they have been deleted. Changed dsa/rsa
6711 utilities to handle the new format: note no releases ever handled public
6712 keys so we should be OK.
6714 The primary motivation for this change is to avoid the same fiasco
6715 that dogs private keys: there are several incompatible private key
6716 formats some of which are standard and some OpenSSL specific and
6717 require various evil hacks to allow partial transparent handling and
6718 even then it doesn't work with DER formats. Given the option anything
6719 other than PKCS#8 should be dumped: but the other formats have to
6720 stay in the name of compatibility.
6722 With public keys and the benefit of hindsight one standard format
6723 is used which works with EVP_PKEY, RSA or DSA structures: though
6724 it clearly returns an error if you try to read the wrong kind of key.
6726 Added a -pubkey option to the 'x509' utility to output the public key.
6727 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6728 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6729 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6730 that do the same as the EVP_PKEY_assign_*() except they up the
6731 reference count of the added key (they don't "swallow" the
6735 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6736 CRLs would fail if the file contained no certificates or no CRLs:
6737 added a new function to read in both types and return the number
6738 read: this means that if none are read it will be an error. The
6739 DER versions of the certificate and CRL reader would always fail
6740 because it isn't possible to mix certificates and CRLs in DER format
6741 without choking one or the other routine. Changed this to just read
6742 a certificate: this is the best we can do. Also modified the code
6743 in apps/verify.c to take notice of return codes: it was previously
6744 attempting to read in certificates from NULL pointers and ignoring
6745 any errors: this is one reason why the cert and CRL reader seemed
6746 to work. It doesn't check return codes from the default certificate
6747 routines: these may well fail if the certificates aren't installed.
6750 *) Code to support otherName option in GeneralName.
6753 *) First update to verify code. Change the verify utility
6754 so it warns if it is passed a self signed certificate:
6755 for consistency with the normal behaviour. X509_verify
6756 has been modified to it will now verify a self signed
6757 certificate if *exactly* the same certificate appears
6758 in the store: it was previously impossible to trust a
6759 single self signed certificate. This means that:
6760 openssl verify ss.pem
6761 now gives a warning about a self signed certificate but
6762 openssl verify -CAfile ss.pem ss.pem
6766 *) For servers, store verify_result in SSL_SESSION data structure
6767 (and add it to external session representation).
6768 This is needed when client certificate verifications fails,
6769 but an application-provided verification callback (set by
6770 SSL_CTX_set_cert_verify_callback) allows accepting the session
6771 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6772 but returns 1): When the session is reused, we have to set
6773 ssl->verify_result to the appropriate error code to avoid
6775 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6777 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6778 case in PKCS7_dataInit() where the signed PKCS7 structure
6779 didn't contain any existing data because it was being created.
6780 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6782 *) Add a salt to the key derivation routines in enc.c. This
6783 forms the first 8 bytes of the encrypted file. Also add a
6784 -S option to allow a salt to be input on the command line.
6787 *) New function X509_cmp(). Oddly enough there wasn't a function
6788 to compare two certificates. We do this by working out the SHA1
6789 hash and comparing that. X509_cmp() will be needed by the trust
6793 *) SSL_get1_session() is like SSL_get_session(), but increments
6794 the reference count in the SSL_SESSION returned.
6795 [Geoff Thorpe <geoff@eu.c2.net>]
6797 *) Fix for 'req': it was adding a null to request attributes.
6798 Also change the X509_LOOKUP and X509_INFO code to handle
6799 certificate auxiliary information.
6802 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6806 *) Add the possibility to add extra information to the memory leak
6807 detecting output, to form tracebacks, showing from where each
6808 allocation was originated: CRYPTO_push_info("constant string") adds
6809 the string plus current file name and line number to a per-thread
6810 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6811 is like calling CYRPTO_pop_info() until the stack is empty.
6812 Also updated memory leak detection code to be multi-thread-safe.
6815 *) Add options -text and -noout to pkcs7 utility and delete the
6816 encryption options which never did anything. Update docs.
6819 *) Add options to some of the utilities to allow the pass phrase
6820 to be included on either the command line (not recommended on
6821 OSes like Unix) or read from the environment. Update the
6822 manpages and fix a few bugs.
6825 *) Add a few manpages for some of the openssl commands.
6828 *) Fix the -revoke option in ca. It was freeing up memory twice,
6829 leaking and not finding already revoked certificates.
6832 *) Extensive changes to support certificate auxiliary information.
6833 This involves the use of X509_CERT_AUX structure and X509_AUX
6834 functions. An X509_AUX function such as PEM_read_X509_AUX()
6835 can still read in a certificate file in the usual way but it
6836 will also read in any additional "auxiliary information". By
6837 doing things this way a fair degree of compatibility can be
6838 retained: existing certificates can have this information added
6839 using the new 'x509' options.
6841 Current auxiliary information includes an "alias" and some trust
6842 settings. The trust settings will ultimately be used in enhanced
6843 certificate chain verification routines: currently a certificate
6844 can only be trusted if it is self signed and then it is trusted
6848 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6849 The problem was that one of the replacement routines had not been working
6850 since SSLeay releases. For now the offending routine has been replaced
6851 with non-optimised assembler. Even so, this now gives around 95%
6852 performance improvement for 1024 bit RSA signs.
6855 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6856 handling. Most clients have the effective key size in bits equal to
6857 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6858 A few however don't do this and instead use the size of the decrypted key
6859 to determine the RC2 key length and the AlgorithmIdentifier to determine
6860 the effective key length. In this case the effective key length can still
6861 be 40 bits but the key length can be 168 bits for example. This is fixed
6862 by manually forcing an RC2 key into the EVP_PKEY structure because the
6863 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6864 the key length and effective key length are equal.
6867 *) Add a bunch of functions that should simplify the creation of
6868 X509_NAME structures. Now you should be able to do:
6869 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6870 and have it automatically work out the correct field type and fill in
6871 the structures. The more adventurous can try:
6872 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6873 and it will (hopefully) work out the correct multibyte encoding.
6876 *) Change the 'req' utility to use the new field handling and multibyte
6877 copy routines. Before the DN field creation was handled in an ad hoc
6878 way in req, ca, and x509 which was rather broken and didn't support
6879 BMPStrings or UTF8Strings. Since some software doesn't implement
6880 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6881 using the dirstring_type option. See the new comment in the default
6882 openssl.cnf for more info.
6885 *) Make crypto/rand/md_rand.c more robust:
6886 - Assure unique random numbers after fork().
6887 - Make sure that concurrent threads access the global counter and
6888 md serializably so that we never lose entropy in them
6889 or use exactly the same state in multiple threads.
6890 Access to the large state is not always serializable because
6891 the additional locking could be a performance killer, and
6892 md should be large enough anyway.
6895 *) New file apps/app_rand.c with commonly needed functionality
6896 for handling the random seed file.
6898 Use the random seed file in some applications that previously did not:
6900 dsaparam -genkey (which also ignored its '-rand' option),
6903 x509 (when signing).
6904 Except on systems with /dev/urandom, it is crucial to have a random
6905 seed file at least for key creation, DSA signing, and for DH exchanges;
6906 for RSA signatures we could do without one.
6908 gendh and gendsa (unlike genrsa) used to read only the first byte
6909 of each file listed in the '-rand' option. The function as previously
6910 found in genrsa is now in app_rand.c and is used by all programs
6911 that support '-rand'.
6914 *) In RAND_write_file, use mode 0600 for creating files;
6915 don't just chmod when it may be too late.
6918 *) Report an error from X509_STORE_load_locations
6919 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6922 *) New function ASN1_mbstring_copy() this copies a string in either
6923 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6924 into an ASN1_STRING type. A mask of permissible types is passed
6925 and it chooses the "minimal" type to use or an error if not type
6929 *) Add function equivalents to the various macros in asn1.h. The old
6930 macros are retained with an M_ prefix. Code inside the library can
6931 use the M_ macros. External code (including the openssl utility)
6932 should *NOT* in order to be "shared library friendly".
6935 *) Add various functions that can check a certificate's extensions
6936 to see if it usable for various purposes such as SSL client,
6937 server or S/MIME and CAs of these types. This is currently
6938 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6939 verification. Also added a -purpose flag to x509 utility to
6940 print out all the purposes.
6943 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6947 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6948 for, obtain and decode and extension and obtain its critical flag.
6949 This allows all the necessary extension code to be handled in a
6950 single function call.
6953 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6954 platforms. See crypto/rc4/rc4_enc.c for further details.
6957 *) New -noout option to asn1parse. This causes no output to be produced
6958 its main use is when combined with -strparse and -out to extract data
6959 from a file (which may not be in ASN.1 format).
6962 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6963 when producing the local key id.
6964 [Richard Levitte <levitte@stacken.kth.se>]
6966 *) New option -dhparam in s_server. This allows a DH parameter file to be
6967 stated explicitly. If it is not stated then it tries the first server
6968 certificate file. The previous behaviour hard coded the filename
6972 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6973 a public key to be input or output. For example:
6974 openssl rsa -in key.pem -pubout -out pubkey.pem
6975 Also added necessary DSA public key functions to handle this.
6978 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6979 in the message. This was handled by allowing
6980 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6981 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6983 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6984 to the end of the strings whereas this didn't. This would cause problems
6985 if strings read with d2i_ASN1_bytes() were later modified.
6986 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6988 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6989 data and it contains EOF it will end up returning an error. This is
6990 caused by input 46 bytes long. The cause is due to the way base64
6991 BIOs find the start of base64 encoded data. They do this by trying a
6992 trial decode on each line until they find one that works. When they
6993 do a flag is set and it starts again knowing it can pass all the
6994 data directly through the decoder. Unfortunately it doesn't reset
6995 the context it uses. This means that if EOF is reached an attempt
6996 is made to pass two EOFs through the context and this causes the
6997 resulting error. This can also cause other problems as well. As is
6998 usual with these problems it takes *ages* to find and the fix is
6999 trivial: move one line.
7000 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7002 *) Ugly workaround to get s_client and s_server working under Windows. The
7003 old code wouldn't work because it needed to select() on sockets and the
7004 tty (for keypresses and to see if data could be written). Win32 only
7005 supports select() on sockets so we select() with a 1s timeout on the
7006 sockets and then see if any characters are waiting to be read, if none
7007 are present then we retry, we also assume we can always write data to
7008 the tty. This isn't nice because the code then blocks until we've
7009 received a complete line of data and it is effectively polling the
7010 keyboard at 1s intervals: however it's quite a bit better than not
7011 working at all :-) A dedicated Windows application might handle this
7012 with an event loop for example.
7015 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7016 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7017 will be called when RSA_sign() and RSA_verify() are used. This is useful
7018 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7019 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7020 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7021 This necessitated the support of an extra signature type NID_md5_sha1
7022 for SSL signatures and modifications to the SSL library to use it instead
7023 of calling RSA_public_decrypt() and RSA_private_encrypt().
7026 *) Add new -verify -CAfile and -CApath options to the crl program, these
7027 will lookup a CRL issuers certificate and verify the signature in a
7028 similar way to the verify program. Tidy up the crl program so it
7029 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7030 less strict. It will now permit CRL extensions even if it is not
7031 a V2 CRL: this will allow it to tolerate some broken CRLs.
7034 *) Initialize all non-automatic variables each time one of the openssl
7035 sub-programs is started (this is necessary as they may be started
7036 multiple times from the "OpenSSL>" prompt).
7037 [Lennart Bang, Bodo Moeller]
7039 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7040 removing all other RSA functionality (this is what NO_RSA does). This
7041 is so (for example) those in the US can disable those operations covered
7042 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7046 *) Non-copying interface to BIO pairs.
7047 (still largely untested)
7050 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7051 ASCII string. This was handled independently in various places before.
7054 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7055 UTF8 strings a character at a time.
7058 *) Use client_version from client hello to select the protocol
7059 (s23_srvr.c) and for RSA client key exchange verification
7060 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7063 *) Add various utility functions to handle SPKACs, these were previously
7064 handled by poking round in the structure internals. Added new function
7065 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7066 print, verify and generate SPKACs. Based on an original idea from
7067 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7070 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7073 *) Allow the config file extension section to be overwritten on the
7074 command line. Based on an original idea from Massimiliano Pala
7075 <madwolf@comune.modena.it>. The new option is called -extensions
7076 and can be applied to ca, req and x509. Also -reqexts to override
7077 the request extensions in req and -crlexts to override the crl extensions
7081 *) Add new feature to the SPKAC handling in ca. Now you can include
7082 the same field multiple times by preceding it by "XXXX." for example:
7085 this is the same syntax as used in the req config file.
7088 *) Allow certificate extensions to be added to certificate requests. These
7089 are specified in a 'req_extensions' option of the req section of the
7090 config file. They can be printed out with the -text option to req but
7091 are otherwise ignored at present.
7094 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7095 data read consists of only the final block it would not decrypted because
7096 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7097 A misplaced 'break' also meant the decrypted final block might not be
7098 copied until the next read.
7101 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7102 a few extra parameters to the DH structure: these will be useful if
7103 for example we want the value of 'q' or implement X9.42 DH.
7106 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7107 provides hooks that allow the default DSA functions or functions on a
7108 "per key" basis to be replaced. This allows hardware acceleration and
7109 hardware key storage to be handled without major modification to the
7110 library. Also added low level modexp hooks and CRYPTO_EX structure and
7111 associated functions.
7114 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7115 as "read only": it can't be written to and the buffer it points to will
7116 not be freed. Reading from a read only BIO is much more efficient than
7117 a normal memory BIO. This was added because there are several times when
7118 an area of memory needs to be read from a BIO. The previous method was
7119 to create a memory BIO and write the data to it, this results in two
7120 copies of the data and an O(n^2) reading algorithm. There is a new
7121 function BIO_new_mem_buf() which creates a read only memory BIO from
7122 an area of memory. Also modified the PKCS#7 routines to use read only
7126 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7127 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7128 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7129 but a retry condition occured while trying to read the rest.
7132 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7133 NID_pkcs7_encrypted by default: this was wrong since this should almost
7134 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7135 the encrypted data type: this is a more sensible place to put it and it
7136 allows the PKCS#12 code to be tidied up that duplicated this
7140 *) Changed obj_dat.pl script so it takes its input and output files on
7141 the command line. This should avoid shell escape redirection problems
7145 *) Initial support for certificate extension requests, these are included
7146 in things like Xenroll certificate requests. Included functions to allow
7147 extensions to be obtained and added.
7150 *) -crlf option to s_client and s_server for sending newlines as
7151 CRLF (as required by many protocols).
7154 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7156 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7157 [Ralf S. Engelschall]
7159 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7160 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7162 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7166 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7167 DH parameters/keys (q is lost during that conversion, but the resulting
7168 DH parameters contain its length).
7170 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7171 much faster than DH_generate_parameters (which creates parameters
7172 where p = 2*q + 1), and also the smaller q makes DH computations
7173 much more efficient (160-bit exponentiation instead of 1024-bit
7174 exponentiation); so this provides a convenient way to support DHE
7175 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7176 utter importance to use
7177 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7179 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7180 when such DH parameters are used, because otherwise small subgroup
7181 attacks may become possible!
7184 *) Avoid memory leak in i2d_DHparams.
7187 *) Allow the -k option to be used more than once in the enc program:
7188 this allows the same encrypted message to be read by multiple recipients.
7191 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7192 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7193 it will always use the numerical form of the OID, even if it has a short
7197 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7198 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7199 otherwise bn_mod_exp was called. In the case of hardware keys for example
7200 no private key components need be present and it might store extra data
7201 in the RSA structure, which cannot be accessed from bn_mod_exp.
7202 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7203 private key operations.
7206 *) Added support for SPARC Linux.
7209 *) pem_password_cb function type incompatibly changed from
7210 typedef int pem_password_cb(char *buf, int size, int rwflag);
7212 ....(char *buf, int size, int rwflag, void *userdata);
7213 so that applications can pass data to their callbacks:
7214 The PEM[_ASN1]_{read,write}... functions and macros now take an
7215 additional void * argument, which is just handed through whenever
7216 the password callback is called.
7217 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7219 New function SSL_CTX_set_default_passwd_cb_userdata.
7221 Compatibility note: As many C implementations push function arguments
7222 onto the stack in reverse order, the new library version is likely to
7223 interoperate with programs that have been compiled with the old
7224 pem_password_cb definition (PEM_whatever takes some data that
7225 happens to be on the stack as its last argument, and the callback
7226 just ignores this garbage); but there is no guarantee whatsoever that
7229 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7230 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7231 problems not only on Windows, but also on some Unix platforms.
7232 To avoid problematic command lines, these definitions are now in an
7233 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7234 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7237 *) MIPS III/IV assembler module is reimplemented.
7240 *) More DES library cleanups: remove references to srand/rand and
7241 delete an unused file.
7244 *) Add support for the the free Netwide assembler (NASM) under Win32,
7245 since not many people have MASM (ml) and it can be hard to obtain.
7246 This is currently experimental but it seems to work OK and pass all
7247 the tests. Check out INSTALL.W32 for info.
7250 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7251 without temporary keys kept an extra copy of the server key,
7252 and connections with temporary keys did not free everything in case
7256 *) New function RSA_check_key and new openssl rsa option -check
7257 for verifying the consistency of RSA keys.
7258 [Ulf Moeller, Bodo Moeller]
7260 *) Various changes to make Win32 compile work:
7261 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7262 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7263 comparison" warnings.
7264 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7267 *) Add a debugging option to PKCS#5 v2 key generation function: when
7268 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7269 derived keys are printed to stderr.
7272 *) Copy the flags in ASN1_STRING_dup().
7273 [Roman E. Pavlov <pre@mo.msk.ru>]
7275 *) The x509 application mishandled signing requests containing DSA
7276 keys when the signing key was also DSA and the parameters didn't match.
7278 It was supposed to omit the parameters when they matched the signing key:
7279 the verifying software was then supposed to automatically use the CA's
7280 parameters if they were absent from the end user certificate.
7282 Omitting parameters is no longer recommended. The test was also
7283 the wrong way round! This was probably due to unusual behaviour in
7284 EVP_cmp_parameters() which returns 1 if the parameters match.
7285 This meant that parameters were omitted when they *didn't* match and
7286 the certificate was useless. Certificates signed with 'ca' didn't have
7288 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7290 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7291 The interface is as follows:
7292 Applications can use
7293 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7294 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7295 "off" is now the default.
7296 The library internally uses
7297 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7298 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7299 to disable memory-checking temporarily.
7301 Some inconsistent states that previously were possible (and were
7302 even the default) are now avoided.
7304 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7305 with each memory chunk allocated; this is occasionally more helpful
7306 than just having a counter.
7308 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7310 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7314 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7315 which largely parallels "options", but is for changing API behaviour,
7316 whereas "options" are about protocol behaviour.
7317 Initial "mode" flags are:
7319 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7320 a single record has been written.
7321 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7322 retries use the same buffer location.
7323 (But all of the contents must be
7327 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7330 *) Fix problems with no-hmac etc.
7331 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7333 *) New functions RSA_get_default_method(), RSA_set_method() and
7334 RSA_get_method(). These allows replacement of RSA_METHODs without having
7335 to mess around with the internals of an RSA structure.
7338 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7339 Also really enable memory leak checks in openssl.c and in some
7341 [Chad C. Mulligan, Bodo Moeller]
7343 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7344 up the length of negative integers. This has now been simplified to just
7345 store the length when it is first determined and use it later, rather
7346 than trying to keep track of where data is copied and updating it to
7348 [Steve Henson, reported by Brien Wheeler
7349 <bwheeler@authentica-security.com>]
7351 *) Add a new function PKCS7_signatureVerify. This allows the verification
7352 of a PKCS#7 signature but with the signing certificate passed to the
7353 function itself. This contrasts with PKCS7_dataVerify which assumes the
7354 certificate is present in the PKCS#7 structure. This isn't always the
7355 case: certificates can be omitted from a PKCS#7 structure and be
7356 distributed by "out of band" means (such as a certificate database).
7359 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7360 function prototypes in pem.h, also change util/mkdef.pl to add the
7361 necessary function names.
7364 *) mk1mf.pl (used by Windows builds) did not properly read the
7365 options set by Configure in the top level Makefile, and Configure
7366 was not even able to write more than one option correctly.
7367 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7370 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7371 file to be loaded from a BIO or FILE pointer. The BIO version will
7372 for example allow memory BIOs to contain config info.
7375 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7376 Whoever hopes to achieve shared-library compatibility across versions
7377 must use this, not the compile-time macro.
7378 (Exercise 0.9.4: Which is the minimum library version required by
7380 Note: All this applies only to multi-threaded programs, others don't
7384 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7385 through a BIO pair triggered the default case, i.e.
7386 SSLerr(...,SSL_R_UNKNOWN_STATE).
7389 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7390 can use the SSL library even if none of the specific BIOs is
7394 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7395 for the encoded length.
7396 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7398 *) Add initial documentation of the X509V3 functions.
7401 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7402 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7403 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7404 secure PKCS#8 private key format with a high iteration count.
7407 *) Fix determination of Perl interpreter: A perl or perl5
7408 _directory_ in $PATH was also accepted as the interpreter.
7409 [Ralf S. Engelschall]
7411 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7412 wrong with it but it was very old and did things like calling
7413 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7417 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7418 to use the new extension code.
7421 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7422 with macros. This should make it easier to change their form, add extra
7423 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7427 *) Add to configuration table a new entry that can specify an alternative
7428 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7429 according to Mark Crispin <MRC@Panda.COM>.
7433 *) DES CBC did not update the IV. Weird.
7436 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7437 Changing the behaviour of the former might break existing programs --
7438 where IV updating is needed, des_ncbc_encrypt can be used.
7441 *) When bntest is run from "make test" it drives bc to check its
7442 calculations, as well as internally checking them. If an internal check
7443 fails, it needs to cause bc to give a non-zero result or make test carries
7444 on without noticing the failure. Fixed.
7447 *) DES library cleanups.
7450 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7451 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7452 ciphers. NOTE: although the key derivation function has been verified
7453 against some published test vectors it has not been extensively tested
7454 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7458 *) Instead of "mkdir -p", which is not fully portable, use new
7459 Perl script "util/mkdir-p.pl".
7462 *) Rewrite the way password based encryption (PBE) is handled. It used to
7463 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7464 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7465 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7466 the 'parameter' field of the AlgorithmIdentifier is passed to the
7467 underlying key generation function so it must do its own ASN1 parsing.
7468 This has also changed the EVP_PBE_CipherInit() function which now has a
7469 'parameter' argument instead of literal salt and iteration count values
7470 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7473 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7474 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7475 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7476 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7477 value was just used as a "magic string" and not used directly its
7478 value doesn't matter.
7481 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7485 *) "linux-sparc64" configuration (ultrapenguin).
7486 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7487 "linux-sparc" configuration.
7488 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7490 *) config now generates no-xxx options for missing ciphers.
7493 *) Support the EBCDIC character set (work in progress).
7494 File ebcdic.c not yet included because it has a different license.
7495 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7497 *) Support BS2000/OSD-POSIX.
7498 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7500 *) Make callbacks for key generation use void * instead of char *.
7503 *) Make S/MIME samples compile (not yet tested).
7506 *) Additional typesafe stacks.
7509 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7513 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7515 *) New configuration variant "sco5-gcc".
7517 *) Updated some demos.
7518 [Sean O Riordain, Wade Scholine]
7520 *) Add missing BIO_free at exit of pkcs12 application.
7523 *) Fix memory leak in conf.c.
7526 *) Updates for Win32 to assembler version of MD5.
7529 *) Set #! path to perl in apps/der_chop to where we found it
7530 instead of using a fixed path.
7533 *) SHA library changes for irix64-mips4-cc.
7536 *) Improvements for VMS support.
7540 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7542 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7543 This also avoids the problems with SC4.2 and unpatched SC5.
7544 [Andy Polyakov <appro@fy.chalmers.se>]
7546 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7547 These are required because of the typesafe stack would otherwise break
7548 existing code. If old code used a structure member which used to be STACK
7549 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7550 sk_num or sk_value it would produce an error because the num, data members
7551 are not present in STACK_OF. Now it just produces a warning. sk_set
7552 replaces the old method of assigning a value to sk_value
7553 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7554 that does this will no longer work (and should use sk_set instead) but
7555 this could be regarded as a "questionable" behaviour anyway.
7558 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7559 correctly handle encrypted S/MIME data.
7562 *) Change type of various DES function arguments from des_cblock
7563 (which means, in function argument declarations, pointer to char)
7564 to des_cblock * (meaning pointer to array with 8 char elements),
7565 which allows the compiler to do more typechecking; it was like
7566 that back in SSLeay, but with lots of ugly casts.
7568 Introduce new type const_des_cblock.
7571 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7572 problems: find RecipientInfo structure that matches recipient certificate
7573 and initialise the ASN1 structures properly based on passed cipher.
7576 *) Belatedly make the BN tests actually check the results.
7579 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7580 to and from BNs: it was completely broken. New compilation option
7581 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7582 key elements as negative integers.
7585 *) Reorganize and speed up MD5.
7586 [Andy Polyakov <appro@fy.chalmers.se>]
7589 [Richard Levitte <richard@levitte.org>]
7591 *) New option -out to asn1parse to allow the parsed structure to be
7592 output to a file. This is most useful when combined with the -strparse
7593 option to examine the output of things like OCTET STRINGS.
7596 *) Make SSL library a little more fool-proof by not requiring any longer
7597 that SSL_set_{accept,connect}_state be called before
7598 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7599 in many applications because usually everything *appeared* to work as
7600 intended anyway -- now it really works as intended).
7603 *) Move openssl.cnf out of lib/.
7606 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7607 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7608 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7609 [Ralf S. Engelschall]
7611 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7612 handle PKCS#7 enveloped data properly.
7613 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7615 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7616 copying pointers. The cert_st handling is changed by this in
7617 various ways (and thus what used to be known as ctx->default_cert
7618 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7619 any longer when s->cert does not give us what we need).
7620 ssl_cert_instantiate becomes obsolete by this change.
7621 As soon as we've got the new code right (possibly it already is?),
7622 we have solved a couple of bugs of the earlier code where s->cert
7623 was used as if it could not have been shared with other SSL structures.
7625 Note that using the SSL API in certain dirty ways now will result
7626 in different behaviour than observed with earlier library versions:
7627 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7628 does not influence s as it used to.
7630 In order to clean up things more thoroughly, inside SSL_SESSION
7631 we don't use CERT any longer, but a new structure SESS_CERT
7632 that holds per-session data (if available); currently, this is
7633 the peer's certificate chain and, for clients, the server's certificate
7634 and temporary key. CERT holds only those values that can have
7635 meaningful defaults in an SSL_CTX.
7638 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7639 from the internal representation. Various PKCS#7 fixes: remove some
7640 evil casts and set the enc_dig_alg field properly based on the signing
7644 *) Allow PKCS#12 password to be set from the command line or the
7645 environment. Let 'ca' get its config file name from the environment
7646 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7650 *) Allow certificate policies extension to use an IA5STRING for the
7651 organization field. This is contrary to the PKIX definition but
7652 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7656 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7657 without disallowing inline assembler and the like for non-pedantic builds.
7660 *) Support Borland C++ builder.
7661 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7666 *) SHA-1 cleanups and performance enhancements.
7667 [Andy Polyakov <appro@fy.chalmers.se>]
7669 *) Sparc v8plus assembler for the bignum library.
7670 [Andy Polyakov <appro@fy.chalmers.se>]
7672 *) Accept any -xxx and +xxx compiler options in Configure.
7675 *) Update HPUX configuration.
7678 *) Add missing sk_<type>_unshift() function to safestack.h
7679 [Ralf S. Engelschall]
7681 *) New function SSL_CTX_use_certificate_chain_file that sets the
7682 "extra_cert"s in addition to the certificate. (This makes sense
7683 only for "PEM" format files, as chains as a whole are not
7687 *) Support verify_depth from the SSL API.
7688 x509_vfy.c had what can be considered an off-by-one-error:
7689 Its depth (which was not part of the external interface)
7690 was actually counting the number of certificates in a chain;
7691 now it really counts the depth.
7694 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7695 instead of X509err, which often resulted in confusing error
7696 messages since the error codes are not globally unique
7697 (e.g. an alleged error in ssl3_accept when a certificate
7698 didn't match the private key).
7700 *) New function SSL_CTX_set_session_id_context that allows to set a default
7701 value (so that you don't need SSL_set_session_id_context for each
7702 connection using the SSL_CTX).
7705 *) OAEP decoding bug fix.
7708 *) Support INSTALL_PREFIX for package builders, as proposed by
7712 *) New Configure options "threads" and "no-threads". For systems
7713 where the proper compiler options are known (currently Solaris
7714 and Linux), "threads" is the default.
7717 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7720 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7721 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7722 such as /usr/local/bin.
7725 *) "make linux-shared" to build shared libraries.
7726 [Niels Poppe <niels@netbox.org>]
7728 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7731 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7732 extension adding in x509 utility.
7735 *) Remove NOPROTO sections and error code comments.
7738 *) Partial rewrite of the DEF file generator to now parse the ANSI
7742 *) New Configure options --prefix=DIR and --openssldir=DIR.
7745 *) Complete rewrite of the error code script(s). It is all now handled
7746 by one script at the top level which handles error code gathering,
7747 header rewriting and C source file generation. It should be much better
7748 than the old method: it now uses a modified version of Ulf's parser to
7749 read the ANSI prototypes in all header files (thus the old K&R definitions
7750 aren't needed for error creation any more) and do a better job of
7751 translating function codes into names. The old 'ASN1 error code imbedded
7752 in a comment' is no longer necessary and it doesn't use .err files which
7753 have now been deleted. Also the error code call doesn't have to appear all
7754 on one line (which resulted in some large lines...).
7757 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7760 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7761 0 (which usually indicates a closed connection), but continue reading.
7764 *) Fix some race conditions.
7767 *) Add support for CRL distribution points extension. Add Certificate
7768 Policies and CRL distribution points documentation.
7771 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7774 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7775 8 of keying material. Merlin has also confirmed interop with this fix
7776 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7777 [Merlin Hughes <merlin@baltimore.ie>]
7779 *) Fix lots of warnings.
7780 [Richard Levitte <levitte@stacken.kth.se>]
7782 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7783 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7784 [Richard Levitte <levitte@stacken.kth.se>]
7786 *) Fix problems with sizeof(long) == 8.
7787 [Andy Polyakov <appro@fy.chalmers.se>]
7789 *) Change functions to ANSI C.
7792 *) Fix typos in error codes.
7793 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7795 *) Remove defunct assembler files from Configure.
7798 *) SPARC v8 assembler BIGNUM implementation.
7799 [Andy Polyakov <appro@fy.chalmers.se>]
7801 *) Support for Certificate Policies extension: both print and set.
7802 Various additions to support the r2i method this uses.
7805 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7806 return a const string when you are expecting an allocated buffer.
7809 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7810 types DirectoryString and DisplayText.
7813 *) Add code to allow r2i extensions to access the configuration database,
7814 add an LHASH database driver and add several ctx helper functions.
7817 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7818 fail when they extended the size of a BIGNUM.
7821 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7822 support typesafe stack.
7825 *) Fix typo in SSL_[gs]et_options().
7826 [Nils Frostberg <nils@medcom.se>]
7828 *) Delete various functions and files that belonged to the (now obsolete)
7829 old X509V3 handling code.
7832 *) New Configure option "rsaref".
7835 *) Don't auto-generate pem.h.
7838 *) Introduce type-safe ASN.1 SETs.
7841 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7842 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7844 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7845 that links with OpenSSL (well at least cause lots of warnings), but fear
7846 not: the conversion is trivial, and it eliminates loads of evil casts. A
7847 few STACKed things have been converted already. Feel free to convert more.
7848 In the fullness of time, I'll do away with the STACK type altogether.
7851 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7852 specified in <certfile> by updating the entry in the index.txt file.
7853 This way one no longer has to edit the index.txt file manually for
7854 revoking a certificate. The -revoke option does the gory details now.
7855 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7857 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7858 `-text' option at all and this way the `-noout -text' combination was
7859 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7860 [Ralf S. Engelschall]
7862 *) Make sure a corresponding plain text error message exists for the
7863 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7864 verify callback function determined that a certificate was revoked.
7865 [Ralf S. Engelschall]
7867 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7868 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7869 all available cipers including rc5, which was forgotten until now.
7870 In order to let the testing shell script know which algorithms
7871 are available, a new (up to now undocumented) command
7872 "openssl list-cipher-commands" is used.
7875 *) Bugfix: s_client occasionally would sleep in select() when
7876 it should have checked SSL_pending() first.
7879 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7880 the raw DSA values prior to ASN.1 encoding.
7883 *) Tweaks to Configure
7884 [Niels Poppe <niels@netbox.org>]
7886 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7890 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7893 *) New config option to avoid instructions that are illegal on the 80386.
7894 The default code is faster, but requires at least a 486.
7897 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7898 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7899 same as SSL2_VERSION anyway.
7902 *) New "-showcerts" option for s_client.
7905 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7906 application. Various cleanups and fixes.
7909 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7910 modify error routines to work internally. Add error codes and PBE init
7911 to library startup routines.
7914 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7915 packing functions to asn1 and evp. Changed function names and error
7916 codes along the way.
7919 *) PKCS12 integration: and so it begins... First of several patches to
7920 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7921 objects to objects.h
7924 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7925 and display support for Thawte strong extranet extension.
7928 *) Add LinuxPPC support.
7929 [Jeff Dubrule <igor@pobox.org>]
7931 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7932 bn_div_words in alpha.s.
7933 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7935 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7936 OAEP isn't supported when OpenSSL is built with RSAref.
7937 [Ulf Moeller <ulf@fitug.de>]
7939 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7940 so they no longer are missing under -DNOPROTO.
7941 [Soren S. Jorvang <soren@t.dk>]
7944 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7946 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7947 doesn't work when the session is reused. Coming soon!
7950 *) Fix a security hole, that allows sessions to be reused in the wrong
7951 context thus bypassing client cert protection! All software that uses
7952 client certs and session caches in multiple contexts NEEDS PATCHING to
7953 allow session reuse! A fuller solution is in the works.
7954 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7956 *) Some more source tree cleanups (removed obsolete files
7957 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7958 permission on "config" script to be executable) and a fix for the INSTALL
7960 [Ulf Moeller <ulf@fitug.de>]
7962 *) Remove some legacy and erroneous uses of malloc, free instead of
7964 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7966 *) Make rsa_oaep_test return non-zero on error.
7967 [Ulf Moeller <ulf@fitug.de>]
7969 *) Add support for native Solaris shared libraries. Configure
7970 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7971 if someone would make that last step automatic.
7972 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7974 *) ctx_size was not built with the right compiler during "make links". Fixed.
7977 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7978 except NULL ciphers". This means the default cipher list will no longer
7979 enable NULL ciphers. They need to be specifically enabled e.g. with
7980 the string "DEFAULT:eNULL".
7983 *) Fix to RSA private encryption routines: if p < q then it would
7984 occasionally produce an invalid result. This will only happen with
7985 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7988 *) Be less restrictive and allow also `perl util/perlpath.pl
7989 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7990 because this way one can also use an interpreter named `perl5' (which is
7991 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7992 installed as `perl').
7993 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7995 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7996 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7998 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7999 advapi32.lib to Win32 build and change the pem test comparision
8000 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8001 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8002 and crypto/des/ede_cbcm_enc.c.
8005 *) DES quad checksum was broken on big-endian architectures. Fixed.
8008 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8009 Win32 test batch file so it (might) work again. The Win32 test batch file
8010 is horrible: I feel ill....
8013 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8014 in e_os.h. Audit of header files to check ANSI and non ANSI
8015 sections: 10 functions were absent from non ANSI section and not exported
8016 from Windows DLLs. Fixed up libeay.num for new functions.
8019 *) Make `openssl version' output lines consistent.
8020 [Ralf S. Engelschall]
8022 *) Fix Win32 symbol export lists for BIO functions: Added
8023 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8024 to ms/libeay{16,32}.def.
8025 [Ralf S. Engelschall]
8027 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8028 fine under Unix and passes some trivial tests I've now added. But the
8029 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8030 added to make sure no one expects that this stuff really works in the
8031 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8032 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8034 [Ralf S. Engelschall]
8036 *) Fix the generation of two part addresses in perl.
8037 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8039 *) Add config entry for Linux on MIPS.
8040 [John Tobey <jtobey@channel1.com>]
8042 *) Make links whenever Configure is run, unless we are on Windoze.
8045 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8046 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8050 *) Add a useful kludge to allow package maintainers to specify compiler and
8051 other platforms details on the command line without having to patch the
8052 Configure script everytime: One now can use ``perl Configure
8053 <id>:<details>'', i.e. platform ids are allowed to have details appended
8054 to them (seperated by colons). This is treated as there would be a static
8055 pre-configured entry in Configure's %table under key <id> with value
8056 <details> and ``perl Configure <id>'' is called. So, when you want to
8057 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8058 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8059 now, which overrides the FreeBSD-elf entry on-the-fly.
8060 [Ralf S. Engelschall]
8062 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8065 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8066 on the `perl Configure ...' command line. This way one can compile
8067 OpenSSL libraries with Position Independent Code (PIC) which is needed
8068 for linking it into DSOs.
8069 [Ralf S. Engelschall]
8071 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8075 *) Cleaned up the LICENSE document: The official contact for any license
8076 questions now is the OpenSSL core team under openssl-core@openssl.org.
8077 And add a paragraph about the dual-license situation to make sure people
8078 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8079 to the OpenSSL toolkit.
8080 [Ralf S. Engelschall]
8082 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8083 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8084 Additonally cleaned up the `make links' target: Remove unnecessary
8085 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8086 to speed processing and no longer clutter the display with confusing
8087 stuff. Instead only the actually done links are displayed.
8088 [Ralf S. Engelschall]
8090 *) Permit null encryption ciphersuites, used for authentication only. It used
8091 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8092 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8096 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8097 signed attributes when verifying signatures (this would break them),
8098 the detached data encoding was wrong and public keys obtained using
8099 X509_get_pubkey() weren't freed.
8102 *) Add text documentation for the BUFFER functions. Also added a work around
8103 to a Win95 console bug. This was triggered by the password read stuff: the
8104 last character typed gets carried over to the next fread(). If you were
8105 generating a new cert request using 'req' for example then the last
8106 character of the passphrase would be CR which would then enter the first
8110 *) Added the new `Includes OpenSSL Cryptography Software' button as
8111 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8112 button and can be used by applications based on OpenSSL to show the
8113 relationship to the OpenSSL project.
8114 [Ralf S. Engelschall]
8116 *) Remove confusing variables in function signatures in files
8117 ssl/ssl_lib.c and ssl/ssl.h.
8118 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8120 *) Don't install bss_file.c under PREFIX/include/
8121 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8123 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8124 functions that return function pointers and has support for NT specific
8125 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8126 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8127 unsigned to signed types: this was killing the Win32 compile.
8130 *) Add new certificate file to stack functions,
8131 SSL_add_dir_cert_subjects_to_stack() and
8132 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8133 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8134 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8135 This means that Apache-SSL and similar packages don't have to mess around
8136 to add as many CAs as they want to the preferred list.
8139 *) Experiment with doxygen documentation. Currently only partially applied to
8141 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8142 openssl.doxy as the configuration file.
8145 *) Get rid of remaining C++-style comments which strict C compilers hate.
8146 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8148 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8149 compiled in by default: it has problems with large keys.
8152 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8153 DH private keys and/or callback functions which directly correspond to
8154 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8155 is needed for applications which have to configure certificates on a
8156 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8158 For the RSA certificate situation is makes no difference, but
8159 for the DSA certificate situation this fixes the "no shared cipher"
8160 problem where the OpenSSL cipher selection procedure failed because the
8161 temporary keys were not overtaken from the context and the API provided
8162 no way to reconfigure them.
8163 The new functions now let applications reconfigure the stuff and they
8164 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8165 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8166 non-public-API function ssl_cert_instantiate() is used as a helper
8167 function and also to reduce code redundancy inside ssl_rsa.c.
8168 [Ralf S. Engelschall]
8170 *) Move s_server -dcert and -dkey options out of the undocumented feature
8171 area because they are useful for the DSA situation and should be
8172 recognized by the users.
8173 [Ralf S. Engelschall]
8175 *) Fix the cipher decision scheme for export ciphers: the export bits are
8176 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8177 SSL_EXP_MASK. So, the original variable has to be used instead of the
8178 already masked variable.
8179 [Richard Levitte <levitte@stacken.kth.se>]
8181 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8182 [Richard Levitte <levitte@stacken.kth.se>]
8184 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8185 from `int' to `unsigned int' because it's a length and initialized by
8186 EVP_DigestFinal() which expects an `unsigned int *'.
8187 [Richard Levitte <levitte@stacken.kth.se>]
8189 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8190 script. Instead use the usual Shell->Perl transition trick.
8191 [Ralf S. Engelschall]
8193 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8194 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8195 -noout -modulus' as it's already the case for `openssl rsa -noout
8196 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8197 currently the public key is printed (a decision which was already done by
8198 `openssl dsa -modulus' in the past) which serves a similar purpose.
8199 Additionally the NO_RSA no longer completely removes the whole -modulus
8200 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8202 [Ralf S. Engelschall]
8204 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8205 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8206 [Arne Ansper <arne@ats.cyber.ee>]
8208 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8209 to be added. Now both 'req' and 'ca' can use new objects defined in the
8213 *) Add cool BIO that does syslog (or event log on NT).
8214 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8216 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8217 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8218 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8219 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8222 *) Add preliminary config info for new extension code.
8225 *) Make RSA_NO_PADDING really use no padding.
8226 [Ulf Moeller <ulf@fitug.de>]
8228 *) Generate errors when private/public key check is done.
8231 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8232 for some CRL extensions and new objects added.
8235 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8236 key usage extension and fuller support for authority key id.
8239 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8240 padding method for RSA, which is recommended for new applications in PKCS
8241 #1 v2.0 (RFC 2437, October 1998).
8242 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8243 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8244 against Bleichbacher's attack on RSA.
8245 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8248 *) Updates to the new SSL compression code
8249 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8251 *) Fix so that the version number in the master secret, when passed
8252 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8253 (because the server will not accept higher), that the version number
8254 is 0x03,0x01, not 0x03,0x00
8255 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8257 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8258 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8259 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8262 *) Support for RAW extensions where an arbitrary extension can be
8263 created by including its DER encoding. See apps/openssl.cnf for
8267 *) Make sure latest Perl versions don't interpret some generated C array
8268 code as Perl array code in the crypto/err/err_genc.pl script.
8269 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8271 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8272 not many people have the assembler. Various Win32 compilation fixes and
8273 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8277 *) Modify configure script 'Configure' to automatically create crypto/date.h
8278 file under Win32 and also build pem.h from pem.org. New script
8279 util/mkfiles.pl to create the MINFO file on environments that can't do a
8280 'make files': perl util/mkfiles.pl >MINFO should work.
8283 *) Major rework of DES function declarations, in the pursuit of correctness
8284 and purity. As a result, many evil casts evaporated, and some weirdness,
8285 too. You may find this causes warnings in your code. Zapping your evil
8286 casts will probably fix them. Mostly.
8289 *) Fix for a typo in asn1.h. Bug fix to object creation script
8290 obj_dat.pl. It considered a zero in an object definition to mean
8291 "end of object": none of the objects in objects.h have any zeros
8292 so it wasn't spotted.
8293 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8295 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8296 Masking (CBCM). In the absence of test vectors, the best I have been able
8297 to do is check that the decrypt undoes the encrypt, so far. Send me test
8298 vectors if you have them.
8301 *) Correct calculation of key length for export ciphers (too much space was
8302 allocated for null ciphers). This has not been tested!
8305 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8306 message is now correct (it understands "crypto" and "ssl" on its
8307 command line). There is also now an "update" option. This will update
8308 the util/ssleay.num and util/libeay.num files with any new functions.
8310 perl util/mkdef.pl crypto ssl update
8311 it will update them.
8314 *) Overhauled the Perl interface (perl/*):
8315 - ported BN stuff to OpenSSL's different BN library
8316 - made the perl/ source tree CVS-aware
8317 - renamed the package from SSLeay to OpenSSL (the files still contain
8318 their history because I've copied them in the repository)
8319 - removed obsolete files (the test scripts will be replaced
8320 by better Test::Harness variants in the future)
8321 [Ralf S. Engelschall]
8323 *) First cut for a very conservative source tree cleanup:
8324 1. merge various obsolete readme texts into doc/ssleay.txt
8325 where we collect the old documents and readme texts.
8326 2. remove the first part of files where I'm already sure that we no
8327 longer need them because of three reasons: either they are just temporary
8328 files which were left by Eric or they are preserved original files where
8329 I've verified that the diff is also available in the CVS via "cvs diff
8330 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8331 the crypto/md/ stuff).
8332 [Ralf S. Engelschall]
8334 *) More extension code. Incomplete support for subject and issuer alt
8335 name, issuer and authority key id. Change the i2v function parameters
8336 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8337 what that's for :-) Fix to ASN1 macro which messed up
8338 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8341 *) Preliminary support for ENUMERATED type. This is largely copied from the
8345 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8346 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8348 *) Make sure `make rehash' target really finds the `openssl' program.
8349 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8351 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8352 like to hear about it if this slows down other processors.
8355 *) Add CygWin32 platform information to Configure script.
8356 [Alan Batie <batie@aahz.jf.intel.com>]
8358 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8359 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8361 *) New program nseq to manipulate netscape certificate sequences
8364 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8368 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8369 but the BN code had some problems that would cause failures when
8370 doing certificate verification and some other functions.
8371 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8373 *) Add ASN1 and PEM code to support netscape certificate sequences.
8376 *) Add ASN1 and PEM code to support netscape certificate sequences.
8379 *) Add several PKIX and private extended key usage OIDs.
8382 *) Modify the 'ca' program to handle the new extension code. Modify
8383 openssl.cnf for new extension format, add comments.
8386 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8387 and add a sample to openssl.cnf so req -x509 now adds appropriate
8391 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8392 error code, add initial support to X509_print() and x509 application.
8395 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8396 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8397 stuff is currently isolated and isn't even compiled yet.
8400 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8401 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8402 Removed the versions check from X509 routines when loading extensions:
8403 this allows certain broken certificates that don't set the version
8404 properly to be processed.
8407 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8408 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8409 can still be regenerated with "make depend".
8412 *) Spelling mistake in C version of CAST-128.
8413 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8415 *) Changes to the error generation code. The perl script err-code.pl
8416 now reads in the old error codes and retains the old numbers, only
8417 adding new ones if necessary. It also only changes the .err files if new
8418 codes are added. The makefiles have been modified to only insert errors
8419 when needed (to avoid needlessly modifying header files). This is done
8420 by only inserting errors if the .err file is newer than the auto generated
8421 C file. To rebuild all the error codes from scratch (the old behaviour)
8422 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8423 or delete all the .err files.
8426 *) CAST-128 was incorrectly implemented for short keys. The C version has
8427 been fixed, but is untested. The assembler versions are also fixed, but
8428 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8429 to regenerate it if needed.
8430 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8431 Hagino <itojun@kame.net>]
8433 *) File was opened incorrectly in randfile.c.
8434 [Ulf Möller <ulf@fitug.de>]
8436 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8437 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8438 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8439 al: it's just almost always a UTCTime. Note this patch adds new error
8440 codes so do a "make errors" if there are problems.
8443 *) Correct Linux 1 recognition in config.
8444 [Ulf Möller <ulf@fitug.de>]
8446 *) Remove pointless MD5 hash when using DSA keys in ca.
8447 [Anonymous <nobody@replay.com>]
8449 *) Generate an error if given an empty string as a cert directory. Also
8450 generate an error if handed NULL (previously returned 0 to indicate an
8451 error, but didn't set one).
8452 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8454 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8457 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8458 parameters. This was causing a warning which killed off the Win32 compile.
8461 *) Remove C++ style comments from crypto/bn/bn_local.h.
8462 [Neil Costigan <neil.costigan@celocom.com>]
8464 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8465 based on a text string, looking up short and long names and finally
8466 "dot" format. The "dot" format stuff didn't work. Added new function
8467 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8468 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8469 OID is not part of the table.
8472 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8473 X509_LOOKUP_by_alias().
8476 *) Sort openssl functions by name.
8479 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8480 encryption from sample DSA keys (in case anyone is interested the password
8484 *) Make _all_ *_free functions accept a NULL pointer.
8485 [Frans Heymans <fheymans@isaserver.be>]
8487 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8489 [Anonymous <nobody@replay.com>]
8491 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8492 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8494 *) Don't blow it for numeric -newkey arguments to apps/req.
8495 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8497 *) Temp key "for export" tests were wrong in s3_srvr.c.
8498 [Anonymous <nobody@replay.com>]
8500 *) Add prototype for temp key callback functions
8501 SSL_CTX_set_tmp_{rsa,dh}_callback().
8504 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8505 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8508 *) X509_name_add_entry() freed the wrong thing after an error.
8509 [Arne Ansper <arne@ats.cyber.ee>]
8511 *) rsa_eay.c would attempt to free a NULL context.
8512 [Arne Ansper <arne@ats.cyber.ee>]
8514 *) BIO_s_socket() had a broken should_retry() on Windoze.
8515 [Arne Ansper <arne@ats.cyber.ee>]
8517 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8518 [Arne Ansper <arne@ats.cyber.ee>]
8520 *) Make sure the already existing X509_STORE->depth variable is initialized
8521 in X509_STORE_new(), but document the fact that this variable is still
8522 unused in the certificate verification process.
8523 [Ralf S. Engelschall]
8525 *) Fix the various library and apps files to free up pkeys obtained from
8526 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8529 *) Fix reference counting in X509_PUBKEY_get(). This makes
8530 demos/maurice/example2.c work, amongst others, probably.
8531 [Steve Henson and Ben Laurie]
8533 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8534 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8535 are no longer created. This way we have a single and consistent command
8536 line interface `openssl <command>', similar to `cvs <command>'.
8537 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8539 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8540 BIT STRING wrapper always have zero unused bits.
8543 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8546 *) Make the top-level INSTALL documentation easier to understand.
8549 *) Makefiles updated to exit if an error occurs in a sub-directory
8550 make (including if user presses ^C) [Paul Sutton]
8552 *) Make Montgomery context stuff explicit in RSA data structure.
8555 *) Fix build order of pem and err to allow for generated pem.h.
8558 *) Fix renumbering bug in X509_NAME_delete_entry().
8561 *) Enhanced the err-ins.pl script so it makes the error library number
8562 global and can add a library name. This is needed for external ASN1 and
8563 other error libraries.
8566 *) Fixed sk_insert which never worked properly.
8569 *) Fix ASN1 macros so they can handle indefinite length construted
8570 EXPLICIT tags. Some non standard certificates use these: they can now
8574 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8575 into a single doc/ssleay.txt bundle. This way the information is still
8576 preserved but no longer messes up this directory. Now it's new room for
8577 the new set of documenation files.
8578 [Ralf S. Engelschall]
8580 *) SETs were incorrectly DER encoded. This was a major pain, because they
8581 shared code with SEQUENCEs, which aren't coded the same. This means that
8582 almost everything to do with SETs or SEQUENCEs has either changed name or
8583 number of arguments.
8584 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8586 *) Fix test data to work with the above.
8589 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8590 was already fixed by Eric for 0.9.1 it seems.
8591 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8593 *) Autodetect FreeBSD3.
8596 *) Fix various bugs in Configure. This affects the following platforms:
8600 unixware-2.0-pentium
8604 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8605 before they are needed.
8608 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8612 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8614 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8615 changed SSLeay to OpenSSL in version strings.
8616 [Ralf S. Engelschall]
8618 *) Some fixups to the top-level documents.
8621 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8622 because the symlink to include/ was missing.
8623 [Ralf S. Engelschall]
8625 *) Incorporated the popular no-RSA/DSA-only patches
8626 which allow to compile a RSA-free SSLeay.
8627 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8629 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8630 when "ssleay" is still not found.
8631 [Ralf S. Engelschall]
8633 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8634 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8636 *) Updated the README file.
8637 [Ralf S. Engelschall]
8639 *) Added various .cvsignore files in the CVS repository subdirs
8640 to make a "cvs update" really silent.
8641 [Ralf S. Engelschall]
8643 *) Recompiled the error-definition header files and added
8644 missing symbols to the Win32 linker tables.
8645 [Ralf S. Engelschall]
8647 *) Cleaned up the top-level documents;
8648 o new files: CHANGES and LICENSE
8649 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8650 o merged COPYRIGHT into LICENSE
8651 o removed obsolete TODO file
8652 o renamed MICROSOFT to INSTALL.W32
8653 [Ralf S. Engelschall]
8655 *) Removed dummy files from the 0.9.1b source tree:
8656 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8657 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8658 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8659 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8660 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8661 [Ralf S. Engelschall]
8663 *) Added various platform portability fixes.
8666 *) The Genesis of the OpenSSL rpject:
8667 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8668 Young and Tim J. Hudson created while they were working for C2Net until
8670 [The OpenSSL Project]
8673 Changes between 0.9.0b and 0.9.1b [not released]
8675 *) Updated a few CA certificates under certs/
8678 *) Changed some BIGNUM api stuff.
8681 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8682 DGUX x86, Linux Alpha, etc.
8685 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8686 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8690 *) Add -strparse option to asn1pars program which parses nested
8692 [Dr Stephen Henson <shenson@bigfoot.com>]
8694 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8697 *) DSA fix for "ca" program.
8700 *) Added "-genkey" option to "dsaparam" program.
8703 *) Added RIPE MD160 (rmd160) message digest.
8706 *) Added -a (all) option to "ssleay version" command.
8709 *) Added PLATFORM define which is the id given to Configure.
8712 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8715 *) Extended the ASN.1 parser routines.
8718 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8721 *) Added a BN_CTX to the BN library.
8724 *) Fixed the weak key values in DES library
8727 *) Changed API in EVP library for cipher aliases.
8730 *) Added support for RC2/64bit cipher.
8733 *) Converted the lhash library to the crypto/mem.c functions.
8736 *) Added more recognized ASN.1 object ids.
8739 *) Added more RSA padding checks for SSL/TLS.
8742 *) Added BIO proxy/filter functionality.
8745 *) Added extra_certs to SSL_CTX which can be used
8746 send extra CA certificates to the client in the CA cert chain sending
8747 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8750 *) Now Fortezza is denied in the authentication phase because
8751 this is key exchange mechanism is not supported by SSLeay at all.
8754 *) Additional PKCS1 checks.
8757 *) Support the string "TLSv1" for all TLS v1 ciphers.
8760 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8761 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8764 *) Fixed a few memory leaks.
8767 *) Fixed various code and comment typos.
8770 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8771 bytes sent in the client random.
8772 [Edward Bishop <ebishop@spyglass.com>]