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 *) Update the GMP engine glue to do direct copies between BIGNUM and
685 mpz_t when openssl and GMP use the same limb size. Otherwise the
686 existing "conversion via a text string export" trick is still used.
687 [Paul Sheer <paulsheer@gmail.com>, Geoff Thorpe]
689 *) Zlib compression BIO. This is a filter BIO which compressed and
690 uncompresses any data passed through it.
693 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
694 RFC3394 compatible AES key wrapping.
697 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
698 sets string data without copying. X509_ALGOR_set0() and
699 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
700 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
701 from an X509_ATTRIBUTE structure optionally checking it occurs only
702 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
706 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
707 to get the expected BN_FLG_CONSTTIME behavior.
708 [Bodo Moeller (Google)]
712 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
713 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
714 - added some more tests to do_tests.pl
715 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
716 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
717 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
718 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
719 - various changes to netware.pl to enable gcc-cross builds on Win32
721 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
722 - various changes to fix missing prototype warnings
723 - fixed x86nasm.pl to create correct asm files for NASM COFF output
724 - added AES, WHIRLPOOL and CPUID assembler code to build files
725 - added missing AES assembler make rules to mk1mf.pl
726 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
727 [Guenter Knauf <eflash@gmx.net>]
729 *) Implement certificate status request TLS extension defined in RFC3546.
730 A client can set the appropriate parameters and receive the encoded
731 OCSP response via a callback. A server can query the supplied parameters
732 and set the encoded OCSP response in the callback. Add simplified examples
733 to s_client and s_server.
736 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
739 + Binary incompatibility of ssl_ctx_st structure
740 + DTLS interoperation with non-compliant servers
741 + Don't call get_session_cb() without proposed session
742 + Fix ia64 assembler code
743 [Andy Polyakov, Steve Henson]
745 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
747 *) DTLS Handshake overhaul. There were longstanding issues with
748 OpenSSL DTLS implementation, which were making it impossible for
749 RFC 4347 compliant client to communicate with OpenSSL server.
750 Unfortunately just fixing these incompatibilities would "cut off"
751 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
752 server keeps tolerating non RFC compliant syntax. The opposite is
753 not true, 0.9.8f client can not communicate with earlier server.
754 This update even addresses CVE-2007-4995.
757 *) Changes to avoid need for function casts in OpenSSL: some compilers
758 (gcc 4.2 and later) reject their use.
759 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
762 *) Add RFC4507 support to OpenSSL. This includes the corrections in
763 RFC4507bis. The encrypted ticket format is an encrypted encoded
764 SSL_SESSION structure, that way new session features are automatically
767 If a client application caches session in an SSL_SESSION structure
768 support is transparent because tickets are now stored in the encoded
771 The SSL_CTX structure automatically generates keys for ticket
772 protection in servers so again support should be possible
773 with no application modification.
775 If a client or server wishes to disable RFC4507 support then the option
776 SSL_OP_NO_TICKET can be set.
778 Add a TLS extension debugging callback to allow the contents of any client
779 or server extensions to be examined.
781 This work was sponsored by Google.
784 *) Add initial support for TLS extensions, specifically for the server_name
785 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
786 have new members for a host name. The SSL data structure has an
787 additional member SSL_CTX *initial_ctx so that new sessions can be
788 stored in that context to allow for session resumption, even after the
789 SSL has been switched to a new SSL_CTX in reaction to a client's
790 server_name extension.
792 New functions (subject to change):
795 SSL_get_servername_type()
798 New CTRL codes and macros (subject to change):
800 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
801 - SSL_CTX_set_tlsext_servername_callback()
802 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
803 - SSL_CTX_set_tlsext_servername_arg()
804 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
806 openssl s_client has a new '-servername ...' option.
808 openssl s_server has new options '-servername_host ...', '-cert2 ...',
809 '-key2 ...', '-servername_fatal' (subject to change). This allows
810 testing the HostName extension for a specific single host name ('-cert'
811 and '-key' remain fallbacks for handshakes without HostName
812 negotiation). If the unrecogninzed_name alert has to be sent, this by
813 default is a warning; it becomes fatal with the '-servername_fatal'
816 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
818 *) Add AES and SSE2 assembly language support to VC++ build.
821 *) Mitigate attack on final subtraction in Montgomery reduction.
824 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
825 (which previously caused an internal error).
828 *) Squeeze another 10% out of IGE mode when in != out.
831 *) AES IGE mode speedup.
832 [Dean Gaudet (Google)]
834 *) Add the Korean symmetric 128-bit cipher SEED (see
835 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
836 add SEED ciphersuites from RFC 4162:
838 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
839 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
840 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
841 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
843 To minimize changes between patchlevels in the OpenSSL 0.9.8
844 series, SEED remains excluded from compilation unless OpenSSL
845 is configured with 'enable-seed'.
848 *) Mitigate branch prediction attacks, which can be practical if a
849 single processor is shared, allowing a spy process to extract
850 information. For detailed background information, see
851 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
852 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
853 and Necessary Software Countermeasures"). The core of the change
854 are new versions BN_div_no_branch() and
855 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
856 respectively, which are slower, but avoid the security-relevant
857 conditional branches. These are automatically called by BN_div()
858 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
859 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
860 remove a conditional branch.
862 BN_FLG_CONSTTIME is the new name for the previous
863 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
864 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
865 in the exponent causes BN_mod_exp_mont() to use the alternative
866 implementation in BN_mod_exp_mont_consttime().) The old name
867 remains as a deprecated alias.
869 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
870 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
871 constant-time implementations for more than just exponentiation.
872 Here too the old name is kept as a deprecated alias.
874 BN_BLINDING_new() will now use BN_dup() for the modulus so that
875 the BN_BLINDING structure gets an independent copy of the
876 modulus. This means that the previous "BIGNUM *m" argument to
877 BN_BLINDING_new() and to BN_BLINDING_create_param() now
878 essentially becomes "const BIGNUM *m", although we can't actually
879 change this in the header file before 0.9.9. It allows
880 RSA_setup_blinding() to use BN_with_flags() on the modulus to
881 enable BN_FLG_CONSTTIME.
883 [Matthew D Wood (Intel Corp)]
885 *) In the SSL/TLS server implementation, be strict about session ID
886 context matching (which matters if an application uses a single
887 external cache for different purposes). Previously,
888 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
889 set. This did ensure strict client verification, but meant that,
890 with applications using a single external cache for quite
891 different requirements, clients could circumvent ciphersuite
892 restrictions for a given session ID context by starting a session
893 in a different context.
896 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
897 a ciphersuite string such as "DEFAULT:RSA" cannot enable
898 authentication-only ciphersuites.
901 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
903 *) Since AES128 and AES256 (and similarly Camellia128 and
904 Camellia256) share a single mask bit in the logic of
905 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
906 kludge to work properly if AES128 is available and AES256 isn't
907 (or if Camellia128 is available and Camellia256 isn't).
910 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
911 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
912 When a point or a seed is encoded in a BIT STRING, we need to
913 prevent the removal of trailing zero bits to get the proper DER
914 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
915 of a NamedBitList, for which trailing 0 bits need to be removed.)
918 *) Have SSL/TLS server implementation tolerate "mismatched" record
919 protocol version while receiving ClientHello even if the
920 ClientHello is fragmented. (The server can't insist on the
921 particular protocol version it has chosen before the ServerHello
922 message has informed the client about his choice.)
925 *) Add RFC 3779 support.
926 [Rob Austein for ARIN, Ben Laurie]
928 *) Load error codes if they are not already present instead of using a
929 static variable. This allows them to be cleanly unloaded and reloaded.
930 Improve header file function name parsing.
933 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
934 or CAPABILITY handshake as required by RFCs.
937 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
939 *) Introduce limits to prevent malicious keys being able to
940 cause a denial of service. (CVE-2006-2940)
941 [Steve Henson, Bodo Moeller]
943 *) Fix ASN.1 parsing of certain invalid structures that can result
944 in a denial of service. (CVE-2006-2937) [Steve Henson]
946 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
947 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
949 *) Fix SSL client code which could crash if connecting to a
950 malicious SSLv2 server. (CVE-2006-4343)
951 [Tavis Ormandy and Will Drewry, Google Security Team]
953 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
954 match only those. Before that, "AES256-SHA" would be interpreted
955 as a pattern and match "AES128-SHA" too (since AES128-SHA got
956 the same strength classification in 0.9.7h) as we currently only
957 have a single AES bit in the ciphersuite description bitmap.
958 That change, however, also applied to ciphersuite strings such as
959 "RC4-MD5" that intentionally matched multiple ciphersuites --
960 namely, SSL 2.0 ciphersuites in addition to the more common ones
961 from SSL 3.0/TLS 1.0.
963 So we change the selection algorithm again: Naming an explicit
964 ciphersuite selects this one ciphersuite, and any other similar
965 ciphersuite (same bitmap) from *other* protocol versions.
966 Thus, "RC4-MD5" again will properly select both the SSL 2.0
967 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
969 Since SSL 2.0 does not have any ciphersuites for which the
970 128/256 bit distinction would be relevant, this works for now.
971 The proper fix will be to use different bits for AES128 and
972 AES256, which would have avoided the problems from the beginning;
973 however, bits are scarce, so we can only do this in a new release
974 (not just a patchlevel) when we can change the SSL_CIPHER
975 definition to split the single 'unsigned long mask' bitmap into
976 multiple values to extend the available space.
980 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
982 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
983 (CVE-2006-4339) [Ben Laurie and Google Security Team]
985 *) Add AES IGE and biIGE modes.
988 *) Change the Unix randomness entropy gathering to use poll() when
989 possible instead of select(), since the latter has some
990 undesirable limitations.
991 [Darryl Miles via Richard Levitte and Bodo Moeller]
993 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
994 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
995 cannot be implicitly activated as part of, e.g., the "AES" alias.
996 However, please upgrade to OpenSSL 0.9.9[-dev] for
997 non-experimental use of the ECC ciphersuites to get TLS extension
998 support, which is required for curve and point format negotiation
999 to avoid potential handshake problems.
1002 *) Disable rogue ciphersuites:
1004 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1005 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1006 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1008 The latter two were purportedly from
1009 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1012 Also deactivate the remaining ciphersuites from
1013 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1014 unofficial, and the ID has long expired.
1017 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1018 dual-core machines) and other potential thread-safety issues.
1021 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1022 versions), which is now available for royalty-free use
1023 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1024 Also, add Camellia TLS ciphersuites from RFC 4132.
1026 To minimize changes between patchlevels in the OpenSSL 0.9.8
1027 series, Camellia remains excluded from compilation unless OpenSSL
1028 is configured with 'enable-camellia'.
1031 *) Disable the padding bug check when compression is in use. The padding
1032 bug check assumes the first packet is of even length, this is not
1033 necessarily true if compresssion is enabled and can result in false
1034 positives causing handshake failure. The actual bug test is ancient
1035 code so it is hoped that implementations will either have fixed it by
1036 now or any which still have the bug do not support compression.
1039 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1041 *) When applying a cipher rule check to see if string match is an explicit
1042 cipher suite and only match that one cipher suite if it is.
1045 *) Link in manifests for VC++ if needed.
1046 [Austin Ziegler <halostatue@gmail.com>]
1048 *) Update support for ECC-based TLS ciphersuites according to
1049 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1050 TLS extensions, which are supported starting with the 0.9.9
1051 branch, not in the OpenSSL 0.9.8 branch).
1054 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1055 opaque EVP_CIPHER_CTX handling.
1058 *) Fixes and enhancements to zlib compression code. We now only use
1059 "zlib1.dll" and use the default __cdecl calling convention on Win32
1060 to conform with the standards mentioned here:
1061 http://www.zlib.net/DLL_FAQ.txt
1062 Static zlib linking now works on Windows and the new --with-zlib-include
1063 --with-zlib-lib options to Configure can be used to supply the location
1064 of the headers and library. Gracefully handle case where zlib library
1068 *) Several fixes and enhancements to the OID generation code. The old code
1069 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1070 handle numbers larger than ULONG_MAX, truncated printing and had a
1071 non standard OBJ_obj2txt() behaviour.
1074 *) Add support for building of engines under engine/ as shared libraries
1075 under VC++ build system.
1078 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1079 Hopefully, we will not see any false combination of paths any more.
1082 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1084 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1085 (part of SSL_OP_ALL). This option used to disable the
1086 countermeasure against man-in-the-middle protocol-version
1087 rollback in the SSL 2.0 server implementation, which is a bad
1088 idea. (CVE-2005-2969)
1090 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1091 for Information Security, National Institute of Advanced Industrial
1092 Science and Technology [AIST], Japan)]
1094 *) Add two function to clear and return the verify parameter flags.
1097 *) Keep cipherlists sorted in the source instead of sorting them at
1098 runtime, thus removing the need for a lock.
1101 *) Avoid some small subgroup attacks in Diffie-Hellman.
1102 [Nick Mathewson and Ben Laurie]
1104 *) Add functions for well-known primes.
1107 *) Extended Windows CE support.
1108 [Satoshi Nakamura and Andy Polyakov]
1110 *) Initialize SSL_METHOD structures at compile time instead of during
1111 runtime, thus removing the need for a lock.
1114 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1115 attempting to decrypt each encrypted key in turn. Add support to
1119 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1121 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1124 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1127 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1128 key into the same file any more.
1131 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1134 *) Add -utf8 command line and config file option to 'ca'.
1135 [Stefan <stf@udoma.org]
1137 *) Removed the macro des_crypt(), as it seems to conflict with some
1138 libraries. Use DES_crypt().
1141 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1142 involves renaming the source and generated shared-libs for
1143 both. The engines will accept the corrected or legacy ids
1144 ('ncipher' and '4758_cca' respectively) when binding. NB,
1145 this only applies when building 'shared'.
1146 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1148 *) Add attribute functions to EVP_PKEY structure. Modify
1149 PKCS12_create() to recognize a CSP name attribute and
1150 use it. Make -CSP option work again in pkcs12 utility.
1153 *) Add new functionality to the bn blinding code:
1154 - automatic re-creation of the BN_BLINDING parameters after
1155 a fixed number of uses (currently 32)
1156 - add new function for parameter creation
1157 - introduce flags to control the update behaviour of the
1158 BN_BLINDING parameters
1159 - hide BN_BLINDING structure
1160 Add a second BN_BLINDING slot to the RSA structure to improve
1161 performance when a single RSA object is shared among several
1165 *) Add support for DTLS.
1166 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1168 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1169 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1172 *) Remove buggy and incompletet DH cert support from
1173 ssl/ssl_rsa.c and ssl/s3_both.c
1176 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1177 the apps/openssl applications.
1180 *) Compile clean with "-Wall -Wmissing-prototypes
1181 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1182 DEBUG_SAFESTACK must also be set.
1185 *) Change ./Configure so that certain algorithms can be disabled by default.
1186 The new counterpiece to "no-xxx" is "enable-xxx".
1188 The patented RC5 and MDC2 algorithms will now be disabled unless
1189 "enable-rc5" and "enable-mdc2", respectively, are specified.
1191 (IDEA remains enabled despite being patented. This is because IDEA
1192 is frequently required for interoperability, and there is no license
1193 fee for non-commercial use. As before, "no-idea" can be used to
1194 avoid this algorithm.)
1198 *) Add processing of proxy certificates (see RFC 3820). This work was
1199 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1200 EGEE (Enabling Grids for E-science in Europe).
1203 *) RC4 performance overhaul on modern architectures/implementations, such
1204 as Intel P4, IA-64 and AMD64.
1207 *) New utility extract-section.pl. This can be used specify an alternative
1208 section number in a pod file instead of having to treat each file as
1209 a separate case in Makefile. This can be done by adding two lines to the
1212 =for comment openssl_section:XXX
1214 The blank line is mandatory.
1218 *) New arguments -certform, -keyform and -pass for s_client and s_server
1219 to allow alternative format key and certificate files and passphrase
1223 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1224 update associated structures and add various utility functions.
1226 Add new policy related verify parameters, include policy checking in
1227 standard verify code. Enhance 'smime' application with extra parameters
1228 to support policy checking and print out.
1231 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1232 Nehemiah processors. These extensions support AES encryption in hardware
1233 as well as RNG (though RNG support is currently disabled).
1234 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1236 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1239 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1240 [Andy Polyakov and a number of other people]
1242 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1243 implementation contributed by IBM.
1244 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1246 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1247 exponent rather than 'unsigned long'. There is a corresponding change to
1248 the new 'rsa_keygen' element of the RSA_METHOD structure.
1249 [Jelte Jansen, Geoff Thorpe]
1251 *) Functionality for creating the initial serial number file is now
1252 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1254 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1255 number file to 1, which is bound to cause problems. To avoid
1256 the problems while respecting compatibility between different 0.9.7
1257 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1258 CA.pl for serial number initialization. With the new release 0.9.8,
1259 we can fix the problem directly in the 'ca' utility.)
1262 *) Reduced header interdepencies by declaring more opaque objects in
1263 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1264 give fewer recursive includes, which could break lazy source code - so
1265 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1266 developers should define this symbol when building and using openssl to
1267 ensure they track the recommended behaviour, interfaces, [etc], but
1268 backwards-compatible behaviour prevails when this isn't defined.
1271 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1274 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1275 This will generate a random key of the appropriate length based on the
1276 cipher context. The EVP_CIPHER can provide its own random key generation
1277 routine to support keys of a specific form. This is used in the des and
1278 3des routines to generate a key of the correct parity. Update S/MIME
1279 code to use new functions and hence generate correct parity DES keys.
1280 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1281 valid (weak or incorrect parity).
1284 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1285 as looking them up. This is useful when the verified structure may contain
1286 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1287 present unless the new PKCS7_NO_CRL flag is asserted.
1290 *) Extend ASN1 oid configuration module. It now additionally accepts the
1293 shortName = some long name, 1.2.3.4
1296 *) Reimplemented the BN_CTX implementation. There is now no more static
1297 limitation on the number of variables it can handle nor the depth of the
1298 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1299 information can now expand as required, and rather than having a single
1300 static array of bignums, BN_CTX now uses a linked-list of such arrays
1301 allowing it to expand on demand whilst maintaining the usefulness of
1302 BN_CTX's "bundling".
1305 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1306 to allow all RSA operations to function using a single BN_CTX.
1309 *) Preliminary support for certificate policy evaluation and checking. This
1310 is initially intended to pass the tests outlined in "Conformance Testing
1311 of Relying Party Client Certificate Path Processing Logic" v1.07.
1314 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1315 remained unused and not that useful. A variety of other little bignum
1316 tweaks and fixes have also been made continuing on from the audit (see
1320 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1321 associated ASN1, EVP and SSL functions and old ASN1 macros.
1324 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1325 and this should never fail. So the return value from the use of
1326 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1327 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1330 *) BN_CTX_get() should return zero-valued bignums, providing the same
1331 initialised value as BN_new().
1332 [Geoff Thorpe, suggested by Ulf Möller]
1334 *) Support for inhibitAnyPolicy certificate extension.
1337 *) An audit of the BIGNUM code is underway, for which debugging code is
1338 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1339 is considered valid when processing BIGNUMs, and causes execution to
1340 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1341 further steps are taken to deliberately pollute unused data in BIGNUM
1342 structures to try and expose faulty code further on. For now, openssl will
1343 (in its default mode of operation) continue to tolerate the inconsistent
1344 forms that it has tolerated in the past, but authors and packagers should
1345 consider trying openssl and their own applications when compiled with
1346 these debugging symbols defined. It will help highlight potential bugs in
1347 their own code, and will improve the test coverage for OpenSSL itself. At
1348 some point, these tighter rules will become openssl's default to improve
1349 maintainability, though the assert()s and other overheads will remain only
1350 in debugging configurations. See bn.h for more details.
1351 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1353 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1354 that can only be obtained through BN_CTX_new() (which implicitly
1355 initialises it). The presence of this function only made it possible
1356 to overwrite an existing structure (and cause memory leaks).
1359 *) Because of the callback-based approach for implementing LHASH as a
1360 template type, lh_insert() adds opaque objects to hash-tables and
1361 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1362 to clean up those corresponding objects before destroying the hash table
1363 (and losing the object pointers). So some over-zealous constifications in
1364 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1365 objects as "const" and the lh_doall[_arg] callback wrappers are not
1366 prototyped to have "const" restrictions on the object pointers they are
1367 given (and so aren't required to cast them away any more).
1370 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1371 (speed) prefers to use its own implementation. The two implementations
1372 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1373 its object type properly exposed (MS_TM) instead of casting to/from "char
1374 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1375 aren't necessarily the greatest nomenclatures - but this is what was used
1376 internally to the implementation so I've used that for now.
1379 *) Ensure that deprecated functions do not get compiled when
1380 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1381 the self-tests were still using deprecated key-generation functions so
1382 these have been updated also.
1385 *) Reorganise PKCS#7 code to separate the digest location functionality
1386 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1387 New function PKCS7_set_digest() to set the digest type for PKCS#7
1388 digestedData type. Add additional code to correctly generate the
1389 digestedData type and add support for this type in PKCS7 initialization
1393 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1394 structure of type "other".
1397 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1398 sure the loop does correctly stop and breaking ("division by zero")
1399 modulus operations are not performed. The (pre-generated) prime
1400 table crypto/bn/bn_prime.h was already correct, but it could not be
1401 re-generated on some platforms because of the "division by zero"
1402 situation in the script.
1403 [Ralf S. Engelschall]
1405 *) Update support for ECC-based TLS ciphersuites according to
1406 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1407 SHA-1 now is only used for "small" curves (where the
1408 representation of a field element takes up to 24 bytes); for
1409 larger curves, the field element resulting from ECDH is directly
1410 used as premaster secret.
1411 [Douglas Stebila (Sun Microsystems Laboratories)]
1413 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1414 curve secp160r1 to the tests.
1415 [Douglas Stebila (Sun Microsystems Laboratories)]
1417 *) Add the possibility to load symbols globally with DSO.
1418 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1420 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1421 control of the error stack.
1424 *) Add support for STORE in ENGINE.
1427 *) Add the STORE type. The intention is to provide a common interface
1428 to certificate and key stores, be they simple file-based stores, or
1429 HSM-type store, or LDAP stores, or...
1430 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1433 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1434 pass a list of arguments to any function as well as provide a way
1435 for a function to pass data back to the caller.
1438 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1439 works like BUF_strdup() but can be used to duplicate a portion of
1440 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1444 *) Add the function sk_find_ex() which works like sk_find(), but will
1445 return an index to an element even if an exact match couldn't be
1446 found. The index is guaranteed to point at the element where the
1447 searched-for key would be inserted to preserve sorting order.
1450 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1451 takes an extra flags argument for optional functionality. Currently,
1452 the following flags are defined:
1454 OBJ_BSEARCH_VALUE_ON_NOMATCH
1455 This one gets OBJ_bsearch_ex() to return a pointer to the first
1456 element where the comparing function returns a negative or zero
1459 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1460 This one gets OBJ_bsearch_ex() to return a pointer to the first
1461 element where the comparing function returns zero. This is useful
1462 if there are more than one element where the comparing function
1466 *) Make it possible to create self-signed certificates with 'openssl ca'
1467 in such a way that the self-signed certificate becomes part of the
1468 CA database and uses the same mechanisms for serial number generation
1469 as all other certificate signing. The new flag '-selfsign' enables
1470 this functionality. Adapt CA.sh and CA.pl.in.
1473 *) Add functionality to check the public key of a certificate request
1474 against a given private. This is useful to check that a certificate
1475 request can be signed by that key (self-signing).
1478 *) Make it possible to have multiple active certificates with the same
1479 subject in the CA index file. This is done only if the keyword
1480 'unique_subject' is set to 'no' in the main CA section (default
1481 if 'CA_default') of the configuration file. The value is saved
1482 with the database itself in a separate index attribute file,
1483 named like the index file with '.attr' appended to the name.
1486 *) Generate muti valued AVAs using '+' notation in config files for
1490 *) Support for nameConstraints certificate extension.
1493 *) Support for policyConstraints certificate extension.
1496 *) Support for policyMappings certificate extension.
1499 *) Make sure the default DSA_METHOD implementation only uses its
1500 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1501 and change its own handlers to be NULL so as to remove unnecessary
1502 indirection. This lets alternative implementations fallback to the
1503 default implementation more easily.
1506 *) Support for directoryName in GeneralName related extensions
1510 *) Make it possible to link applications using Makefile.shared.
1511 Make that possible even when linking against static libraries!
1514 *) Support for single pass processing for S/MIME signing. This now
1515 means that S/MIME signing can be done from a pipe, in addition
1516 cleartext signing (multipart/signed type) is effectively streaming
1517 and the signed data does not need to be all held in memory.
1519 This is done with a new flag PKCS7_STREAM. When this flag is set
1520 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1521 is done after the data is output (and digests calculated) in
1522 SMIME_write_PKCS7().
1525 *) Add full support for -rpath/-R, both in shared libraries and
1526 applications, at least on the platforms where it's known how
1530 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1531 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1532 will now compute a table of multiples of the generator that
1533 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1534 faster (notably in the case of a single point multiplication,
1535 scalar * generator).
1536 [Nils Larsch, Bodo Moeller]
1538 *) IPv6 support for certificate extensions. The various extensions
1539 which use the IP:a.b.c.d can now take IPv6 addresses using the
1540 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1544 *) Added an ENGINE that implements RSA by performing private key
1545 exponentiations with the GMP library. The conversions to and from
1546 GMP's mpz_t format aren't optimised nor are any montgomery forms
1547 cached, and on x86 it appears OpenSSL's own performance has caught up.
1548 However there are likely to be other architectures where GMP could
1549 provide a boost. This ENGINE is not built in by default, but it can be
1550 specified at Configure time and should be accompanied by the necessary
1551 linker additions, eg;
1552 ./config -DOPENSSL_USE_GMP -lgmp
1555 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1556 testing availability of engines with "-t" - the old behaviour is
1557 produced by increasing the feature's verbosity with "-tt".
1560 *) ECDSA routines: under certain error conditions uninitialized BN objects
1561 could be freed. Solution: make sure initialization is performed early
1562 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1566 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1567 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1568 software implementations. For DSA and DH, parameter generation can
1569 also be overriden by providing the appropriate method callbacks.
1572 *) Change the "progress" mechanism used in key-generation and
1573 primality testing to functions that take a new BN_GENCB pointer in
1574 place of callback/argument pairs. The new API functions have "_ex"
1575 postfixes and the older functions are reimplemented as wrappers for
1576 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1577 declarations of the old functions to help (graceful) attempts to
1578 migrate to the new functions. Also, the new key-generation API
1579 functions operate on a caller-supplied key-structure and return
1580 success/failure rather than returning a key or NULL - this is to
1581 help make "keygen" another member function of RSA_METHOD etc.
1583 Example for using the new callback interface:
1585 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1589 BN_GENCB_set(&my_cb, my_callback, my_arg);
1591 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1592 /* For the meaning of a, b in calls to my_callback(), see the
1593 * documentation of the function that calls the callback.
1594 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1595 * my_callback should return 1 if it wants BN_is_prime_ex()
1596 * to continue, or 0 to stop.
1601 *) Change the ZLIB compression method to be stateful, and make it
1602 available to TLS with the number defined in
1603 draft-ietf-tls-compression-04.txt.
1606 *) Add the ASN.1 structures and functions for CertificatePair, which
1607 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1609 CertificatePair ::= SEQUENCE {
1610 forward [0] Certificate OPTIONAL,
1611 reverse [1] Certificate OPTIONAL,
1612 -- at least one of the pair shall be present -- }
1614 Also implement the PEM functions to read and write certificate
1615 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1617 This needed to be defined, mostly for the sake of the LDAP
1618 attribute crossCertificatePair, but may prove useful elsewhere as
1622 *) Make it possible to inhibit symlinking of shared libraries in
1623 Makefile.shared, for Cygwin's sake.
1626 *) Extend the BIGNUM API by creating a function
1627 void BN_set_negative(BIGNUM *a, int neg);
1628 and a macro that behave like
1629 int BN_is_negative(const BIGNUM *a);
1631 to avoid the need to access 'a->neg' directly in applications.
1634 *) Implement fast modular reduction for pseudo-Mersenne primes
1635 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1636 EC_GROUP_new_curve_GFp() will now automatically use this
1638 [Nils Larsch <nla@trustcenter.de>]
1640 *) Add new lock type (CRYPTO_LOCK_BN).
1643 *) Change the ENGINE framework to automatically load engines
1644 dynamically from specific directories unless they could be
1645 found to already be built in or loaded. Move all the
1646 current engines except for the cryptodev one to a new
1648 The engines in engines/ are built as shared libraries if
1649 the "shared" options was given to ./Configure or ./config.
1650 Otherwise, they are inserted in libcrypto.a.
1651 /usr/local/ssl/engines is the default directory for dynamic
1652 engines, but that can be overriden at configure time through
1653 the usual use of --prefix and/or --openssldir, and at run
1654 time with the environment variable OPENSSL_ENGINES.
1655 [Geoff Thorpe and Richard Levitte]
1657 *) Add Makefile.shared, a helper makefile to build shared
1658 libraries. Addapt Makefile.org.
1661 *) Add version info to Win32 DLLs.
1662 [Peter 'Luna' Runestig" <peter@runestig.com>]
1664 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1665 can be added using this API to created arbitrary PKCS#12
1666 files while avoiding the low level API.
1668 New options to PKCS12_create(), key or cert can be NULL and
1669 will then be omitted from the output file. The encryption
1670 algorithm NIDs can be set to -1 for no encryption, the mac
1671 iteration count can be set to 0 to omit the mac.
1673 Enhance pkcs12 utility by making the -nokeys and -nocerts
1674 options work when creating a PKCS#12 file. New option -nomac
1675 to omit the mac, NONE can be set for an encryption algorithm.
1676 New code is modified to use the enhanced PKCS12_create()
1677 instead of the low level API.
1680 *) Extend ASN1 encoder to support indefinite length constructed
1681 encoding. This can output sequences tags and octet strings in
1682 this form. Modify pk7_asn1.c to support indefinite length
1683 encoding. This is experimental and needs additional code to
1684 be useful, such as an ASN1 bio and some enhanced streaming
1687 Extend template encode functionality so that tagging is passed
1688 down to the template encoder.
1691 *) Let 'openssl req' fail if an argument to '-newkey' is not
1692 recognized instead of using RSA as a default.
1695 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1696 As these are not official, they are not included in "ALL";
1697 the "ECCdraft" ciphersuite group alias can be used to select them.
1698 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1700 *) Add ECDH engine support.
1701 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1703 *) Add ECDH in new directory crypto/ecdh/.
1704 [Douglas Stebila (Sun Microsystems Laboratories)]
1706 *) Let BN_rand_range() abort with an error after 100 iterations
1707 without success (which indicates a broken PRNG).
1710 *) Change BN_mod_sqrt() so that it verifies that the input value
1711 is really the square of the return value. (Previously,
1712 BN_mod_sqrt would show GIGO behaviour.)
1715 *) Add named elliptic curves over binary fields from X9.62, SECG,
1716 and WAP/WTLS; add OIDs that were still missing.
1718 [Sheueling Chang Shantz and Douglas Stebila
1719 (Sun Microsystems Laboratories)]
1721 *) Extend the EC library for elliptic curves over binary fields
1722 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1725 EC_GF2m_simple_method
1729 EC_GROUP_new_curve_GF2m
1730 EC_GROUP_set_curve_GF2m
1731 EC_GROUP_get_curve_GF2m
1732 EC_POINT_set_affine_coordinates_GF2m
1733 EC_POINT_get_affine_coordinates_GF2m
1734 EC_POINT_set_compressed_coordinates_GF2m
1736 Point compression for binary fields is disabled by default for
1737 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1740 As binary polynomials are represented as BIGNUMs, various members
1741 of the EC_GROUP and EC_POINT data structures can be shared
1742 between the implementations for prime fields and binary fields;
1743 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1744 are essentially identical to their ..._GFp counterparts.
1745 (For simplicity, the '..._GFp' prefix has been dropped from
1746 various internal method names.)
1748 An internal 'field_div' method (similar to 'field_mul' and
1749 'field_sqr') has been added; this is used only for binary fields.
1751 [Sheueling Chang Shantz and Douglas Stebila
1752 (Sun Microsystems Laboratories)]
1754 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1755 through methods ('mul', 'precompute_mult').
1757 The generic implementations (now internally called 'ec_wNAF_mul'
1758 and 'ec_wNAF_precomputed_mult') remain the default if these
1759 methods are undefined.
1761 [Sheueling Chang Shantz and Douglas Stebila
1762 (Sun Microsystems Laboratories)]
1764 *) New function EC_GROUP_get_degree, which is defined through
1765 EC_METHOD. For curves over prime fields, this returns the bit
1766 length of the modulus.
1768 [Sheueling Chang Shantz and Douglas Stebila
1769 (Sun Microsystems Laboratories)]
1771 *) New functions EC_GROUP_dup, EC_POINT_dup.
1772 (These simply call ..._new and ..._copy).
1774 [Sheueling Chang Shantz and Douglas Stebila
1775 (Sun Microsystems Laboratories)]
1777 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1778 Polynomials are represented as BIGNUMs (where the sign bit is not
1779 used) in the following functions [macros]:
1782 BN_GF2m_sub [= BN_GF2m_add]
1783 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1784 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1785 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1787 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1788 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1789 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1790 BN_GF2m_cmp [= BN_ucmp]
1792 (Note that only the 'mod' functions are actually for fields GF(2^m).
1793 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1795 For some functions, an the irreducible polynomial defining a
1796 field can be given as an 'unsigned int[]' with strictly
1797 decreasing elements giving the indices of those bits that are set;
1798 i.e., p[] represents the polynomial
1799 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1801 p[0] > p[1] > ... > p[k] = 0.
1802 This applies to the following functions:
1807 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1808 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1810 BN_GF2m_mod_sqrt_arr
1811 BN_GF2m_mod_solve_quad_arr
1815 Conversion can be performed by the following functions:
1820 bntest.c has additional tests for binary polynomial arithmetic.
1822 Two implementations for BN_GF2m_mod_div() are available.
1823 The default algorithm simply uses BN_GF2m_mod_inv() and
1824 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1825 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1826 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1828 [Sheueling Chang Shantz and Douglas Stebila
1829 (Sun Microsystems Laboratories)]
1831 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1832 functionality is disabled at compile-time.
1833 [Douglas Stebila <douglas.stebila@sun.com>]
1835 *) Change default behaviour of 'openssl asn1parse' so that more
1836 information is visible when viewing, e.g., a certificate:
1838 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1839 mode the content of non-printable OCTET STRINGs is output in a
1840 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1841 avoid the appearance of a printable string.
1842 [Nils Larsch <nla@trustcenter.de>]
1844 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1846 EC_GROUP_set_asn1_flag()
1847 EC_GROUP_get_asn1_flag()
1848 EC_GROUP_set_point_conversion_form()
1849 EC_GROUP_get_point_conversion_form()
1850 These control ASN1 encoding details:
1851 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1852 has been set to OPENSSL_EC_NAMED_CURVE.
1853 - Points are encoded in uncompressed form by default; options for
1854 asn1_for are as for point2oct, namely
1855 POINT_CONVERSION_COMPRESSED
1856 POINT_CONVERSION_UNCOMPRESSED
1857 POINT_CONVERSION_HYBRID
1859 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1862 EC_GROUP_get0_seed()
1863 EC_GROUP_get_seed_len()
1864 This is used only for ASN1 purposes (so far).
1865 [Nils Larsch <nla@trustcenter.de>]
1867 *) Add 'field_type' member to EC_METHOD, which holds the NID
1868 of the appropriate field type OID. The new function
1869 EC_METHOD_get_field_type() returns this value.
1870 [Nils Larsch <nla@trustcenter.de>]
1875 EC_POINT_point2hex()
1876 EC_POINT_hex2point()
1877 providing useful interfaces to EC_POINT_point2oct() and
1878 EC_POINT_oct2point().
1879 [Nils Larsch <nla@trustcenter.de>]
1881 *) Change internals of the EC library so that the functions
1882 EC_GROUP_set_generator()
1883 EC_GROUP_get_generator()
1884 EC_GROUP_get_order()
1885 EC_GROUP_get_cofactor()
1886 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1887 to methods, which would lead to unnecessary code duplication when
1888 adding different types of curves.
1889 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1891 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1892 arithmetic, and such that modified wNAFs are generated
1893 (which avoid length expansion in many cases).
1896 *) Add a function EC_GROUP_check_discriminant() (defined via
1897 EC_METHOD) that verifies that the curve discriminant is non-zero.
1899 Add a function EC_GROUP_check() that makes some sanity tests
1900 on a EC_GROUP, its generator and order. This includes
1901 EC_GROUP_check_discriminant().
1902 [Nils Larsch <nla@trustcenter.de>]
1904 *) Add ECDSA in new directory crypto/ecdsa/.
1906 Add applications 'openssl ecparam' and 'openssl ecdsa'
1907 (these are based on 'openssl dsaparam' and 'openssl dsa').
1909 ECDSA support is also included in various other files across the
1910 library. Most notably,
1911 - 'openssl req' now has a '-newkey ecdsa:file' option;
1912 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1913 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1914 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1915 them suitable for ECDSA where domain parameters must be
1916 extracted before the specific public key;
1917 - ECDSA engine support has been added.
1918 [Nils Larsch <nla@trustcenter.de>]
1920 *) Include some named elliptic curves, and add OIDs from X9.62,
1921 SECG, and WAP/WTLS. Each curve can be obtained from the new
1923 EC_GROUP_new_by_curve_name(),
1924 and the list of available named curves can be obtained with
1925 EC_get_builtin_curves().
1926 Also add a 'curve_name' member to EC_GROUP objects, which can be
1928 EC_GROUP_set_curve_name()
1929 EC_GROUP_get_curve_name()
1930 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1932 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1933 was actually never needed) and in BN_mul(). The removal in BN_mul()
1934 required a small change in bn_mul_part_recursive() and the addition
1935 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1936 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1937 bn_sub_words() and bn_add_words() except they take arrays with
1941 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1943 *) In the SSL/TLS server implementation, be strict about session ID
1944 context matching (which matters if an application uses a single
1945 external cache for different purposes). Previously,
1946 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1947 set. This did ensure strict client verification, but meant that,
1948 with applications using a single external cache for quite
1949 different requirements, clients could circumvent ciphersuite
1950 restrictions for a given session ID context by starting a session
1951 in a different context.
1954 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1956 *) Cleanse PEM buffers before freeing them since they may contain
1958 [Benjamin Bennett <ben@psc.edu>]
1960 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1961 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1962 authentication-only ciphersuites.
1965 *) Since AES128 and AES256 share a single mask bit in the logic of
1966 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1967 kludge to work properly if AES128 is available and AES256 isn't.
1970 *) Expand security boundary to match 1.1.1 module.
1973 *) Remove redundant features: hash file source, editing of test vectors
1974 modify fipsld to use external fips_premain.c signature.
1977 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1978 run algorithm test programs.
1981 *) Make algorithm test programs more tolerant of whitespace.
1984 *) Have SSL/TLS server implementation tolerate "mismatched" record
1985 protocol version while receiving ClientHello even if the
1986 ClientHello is fragmented. (The server can't insist on the
1987 particular protocol version it has chosen before the ServerHello
1988 message has informed the client about his choice.)
1991 *) Load error codes if they are not already present instead of using a
1992 static variable. This allows them to be cleanly unloaded and reloaded.
1995 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1997 *) Introduce limits to prevent malicious keys being able to
1998 cause a denial of service. (CVE-2006-2940)
1999 [Steve Henson, Bodo Moeller]
2001 *) Fix ASN.1 parsing of certain invalid structures that can result
2002 in a denial of service. (CVE-2006-2937) [Steve Henson]
2004 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2005 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2007 *) Fix SSL client code which could crash if connecting to a
2008 malicious SSLv2 server. (CVE-2006-4343)
2009 [Tavis Ormandy and Will Drewry, Google Security Team]
2011 *) Change ciphersuite string processing so that an explicit
2012 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2013 will no longer include "AES128-SHA"), and any other similar
2014 ciphersuite (same bitmap) from *other* protocol versions (so that
2015 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2016 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2017 changes from 0.9.8b and 0.9.8d.
2020 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2022 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2023 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2025 *) Change the Unix randomness entropy gathering to use poll() when
2026 possible instead of select(), since the latter has some
2027 undesirable limitations.
2028 [Darryl Miles via Richard Levitte and Bodo Moeller]
2030 *) Disable rogue ciphersuites:
2032 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2033 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2034 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2036 The latter two were purportedly from
2037 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2040 Also deactive the remaining ciphersuites from
2041 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2042 unofficial, and the ID has long expired.
2045 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2046 dual-core machines) and other potential thread-safety issues.
2049 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2051 *) Adapt fipsld and the build system to link against the validated FIPS
2052 module in FIPS mode.
2055 *) Fixes for VC++ 2005 build under Windows.
2058 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2059 from a Windows bash shell such as MSYS. It is autodetected from the
2060 "config" script when run from a VC++ environment. Modify standard VC++
2061 build to use fipscanister.o from the GNU make build.
2064 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2066 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2067 The value now differs depending on if you build for FIPS or not.
2068 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2069 safely run with a non-FIPSed libcrypto, as it may crash because of
2070 the difference induced by this change.
2073 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2075 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2076 (part of SSL_OP_ALL). This option used to disable the
2077 countermeasure against man-in-the-middle protocol-version
2078 rollback in the SSL 2.0 server implementation, which is a bad
2079 idea. (CVE-2005-2969)
2081 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2082 for Information Security, National Institute of Advanced Industrial
2083 Science and Technology [AIST], Japan)]
2085 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2086 mainly for FIPS compliance and not fully integrated at this stage.
2089 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2090 the exponentiation using a fixed-length exponent. (Otherwise,
2091 the information leaked through timing could expose the secret key
2092 after many signatures; cf. Bleichenbacher's attack on DSA with
2096 *) Make a new fixed-window mod_exp implementation the default for
2097 RSA, DSA, and DH private-key operations so that the sequence of
2098 squares and multiplies and the memory access pattern are
2099 independent of the particular secret key. This will mitigate
2100 cache-timing and potential related attacks.
2102 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2103 and this is automatically used by BN_mod_exp_mont() if the new flag
2104 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2105 will use this BN flag for private exponents unless the flag
2106 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2107 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2109 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2111 *) Change the client implementation for SSLv23_method() and
2112 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2113 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2114 (Previously, the SSL 2.0 backwards compatible Client Hello
2115 message format would be used even with SSL_OP_NO_SSLv2.)
2118 *) Add support for smime-type MIME parameter in S/MIME messages which some
2122 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2123 a threadsafe manner. Modify rsa code to use new function and add calls
2124 to dsa and dh code (which had race conditions before).
2127 *) Include the fixed error library code in the C error file definitions
2128 instead of fixing them up at runtime. This keeps the error code
2129 structures constant.
2132 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2134 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2137 *) Fixes for newer kerberos headers. NB: the casts are needed because
2138 the 'length' field is signed on one version and unsigned on another
2139 with no (?) obvious way to tell the difference, without these VC++
2140 complains. Also the "definition" of FAR (blank) is no longer included
2141 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2142 some needed definitions.
2145 *) Undo Cygwin change.
2148 *) Added support for proxy certificates according to RFC 3820.
2149 Because they may be a security thread to unaware applications,
2150 they must be explicitely allowed in run-time. See
2151 docs/HOWTO/proxy_certificates.txt for further information.
2154 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2156 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2157 server and client random values. Previously
2158 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2159 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2161 This change has negligible security impact because:
2163 1. Server and client random values still have 24 bytes of pseudo random
2166 2. Server and client random values are sent in the clear in the initial
2169 3. The master secret is derived using the premaster secret (48 bytes in
2170 size for static RSA ciphersuites) as well as client server and random
2173 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2176 [Stephen Henson, reported by UK NISCC]
2178 *) Use Windows randomness collection on Cygwin.
2181 *) Fix hang in EGD/PRNGD query when communication socket is closed
2182 prematurely by EGD/PRNGD.
2183 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2185 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2188 *) Back-port of selected performance improvements from development
2189 branch, as well as improved support for PowerPC platforms.
2192 *) Add lots of checks for memory allocation failure, error codes to indicate
2193 failure and freeing up memory if a failure occurs.
2194 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2196 *) Add new -passin argument to dgst.
2199 *) Perform some character comparisons of different types in X509_NAME_cmp:
2200 this is needed for some certificates that reencode DNs into UTF8Strings
2201 (in violation of RFC3280) and can't or wont issue name rollover
2205 *) Make an explicit check during certificate validation to see that
2206 the CA setting in each certificate on the chain is correct. As a
2207 side effect always do the following basic checks on extensions,
2208 not just when there's an associated purpose to the check:
2210 - if there is an unhandled critical extension (unless the user
2211 has chosen to ignore this fault)
2212 - if the path length has been exceeded (if one is set at all)
2213 - that certain extensions fit the associated purpose (if one has
2217 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2219 *) Avoid a race condition when CRLs are checked in a multi threaded
2220 environment. This would happen due to the reordering of the revoked
2221 entries during signature checking and serial number lookup. Now the
2222 encoding is cached and the serial number sort performed under a lock.
2223 Add new STACK function sk_is_sorted().
2226 *) Add Delta CRL to the extension code.
2229 *) Various fixes to s3_pkt.c so alerts are sent properly.
2230 [David Holmes <d.holmes@f5.com>]
2232 *) Reduce the chances of duplicate issuer name and serial numbers (in
2233 violation of RFC3280) using the OpenSSL certificate creation utilities.
2234 This is done by creating a random 64 bit value for the initial serial
2235 number when a serial number file is created or when a self signed
2236 certificate is created using 'openssl req -x509'. The initial serial
2237 number file is created using 'openssl x509 -next_serial' in CA.pl
2238 rather than being initialized to 1.
2241 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2243 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2244 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2245 [Joe Orton, Steve Henson]
2247 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2249 [Joe Orton, Steve Henson]
2251 *) Make it possible to have multiple active certificates with the same
2252 subject in the CA index file. This is done only if the keyword
2253 'unique_subject' is set to 'no' in the main CA section (default
2254 if 'CA_default') of the configuration file. The value is saved
2255 with the database itself in a separate index attribute file,
2256 named like the index file with '.attr' appended to the name.
2259 *) X509 verify fixes. Disable broken certificate workarounds when
2260 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2261 keyUsage extension present. Don't accept CRLs with unhandled critical
2262 extensions: since verify currently doesn't process CRL extensions this
2263 rejects a CRL with *any* critical extensions. Add new verify error codes
2267 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2268 A clarification of RFC2560 will require the use of OCTET STRINGs and
2269 some implementations cannot handle the current raw format. Since OpenSSL
2270 copies and compares OCSP nonces as opaque blobs without any attempt at
2271 parsing them this should not create any compatibility issues.
2274 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2275 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2276 this HMAC (and other) operations are several times slower than OpenSSL
2280 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2281 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2283 *) Use the correct content when signing type "other".
2286 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2288 *) Fix various bugs revealed by running the NISCC test suite:
2290 Stop out of bounds reads in the ASN1 code when presented with
2291 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2293 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2295 If verify callback ignores invalid public key errors don't try to check
2296 certificate signature with the NULL public key.
2300 *) New -ignore_err option in ocsp application to stop the server
2301 exiting on the first error in a request.
2304 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2305 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2309 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2310 extra data after the compression methods not only for TLS 1.0
2311 but also for SSL 3.0 (as required by the specification).
2312 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2314 *) Change X509_certificate_type() to mark the key as exported/exportable
2315 when it's 512 *bits* long, not 512 bytes.
2318 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2319 blocks during encryption.
2322 *) Various fixes to base64 BIO and non blocking I/O. On write
2323 flushes were not handled properly if the BIO retried. On read
2324 data was not being buffered properly and had various logic bugs.
2325 This also affects blocking I/O when the data being decoded is a
2329 *) Various S/MIME bugfixes and compatibility changes:
2330 output correct application/pkcs7 MIME type if
2331 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2332 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2333 of files as .eml work). Correctly handle very long lines in MIME
2337 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2339 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2340 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2341 a protocol version number mismatch like a decryption error
2342 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2345 *) Turn on RSA blinding by default in the default implementation
2346 to avoid a timing attack. Applications that don't want it can call
2347 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2348 They would be ill-advised to do so in most cases.
2349 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2351 *) Change RSA blinding code so that it works when the PRNG is not
2352 seeded (in this case, the secret RSA exponent is abused as
2353 an unpredictable seed -- if it is not unpredictable, there
2354 is no point in blinding anyway). Make RSA blinding thread-safe
2355 by remembering the creator's thread ID in rsa->blinding and
2356 having all other threads use local one-time blinding factors
2357 (this requires more computation than sharing rsa->blinding, but
2358 avoids excessive locking; and if an RSA object is not shared
2359 between threads, blinding will still be very fast).
2362 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2363 ENGINE as defaults for all supported algorithms irrespective of
2364 the 'flags' parameter. 'flags' is now honoured, so applications
2365 should make sure they are passing it correctly.
2368 *) Target "mingw" now allows native Windows code to be generated in
2369 the Cygwin environment as well as with the MinGW compiler.
2372 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2374 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2375 via timing by performing a MAC computation even if incorrrect
2376 block cipher padding has been found. This is a countermeasure
2377 against active attacks where the attacker has to distinguish
2378 between bad padding and a MAC verification error. (CVE-2003-0078)
2380 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2381 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2382 Martin Vuagnoux (EPFL, Ilion)]
2384 *) Make the no-err option work as intended. The intention with no-err
2385 is not to have the whole error stack handling routines removed from
2386 libcrypto, it's only intended to remove all the function name and
2387 reason texts, thereby removing some of the footprint that may not
2388 be interesting if those errors aren't displayed anyway.
2390 NOTE: it's still possible for any application or module to have it's
2391 own set of error texts inserted. The routines are there, just not
2392 used by default when no-err is given.
2395 *) Add support for FreeBSD on IA64.
2396 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2398 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2399 Kerberos function mit_des_cbc_cksum(). Before this change,
2400 the value returned by DES_cbc_cksum() was like the one from
2401 mit_des_cbc_cksum(), except the bytes were swapped.
2402 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2404 *) Allow an application to disable the automatic SSL chain building.
2405 Before this a rather primitive chain build was always performed in
2406 ssl3_output_cert_chain(): an application had no way to send the
2407 correct chain if the automatic operation produced an incorrect result.
2409 Now the chain builder is disabled if either:
2411 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2413 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2415 The reasoning behind this is that an application would not want the
2416 auto chain building to take place if extra chain certificates are
2417 present and it might also want a means of sending no additional
2418 certificates (for example the chain has two certificates and the
2422 *) Add the possibility to build without the ENGINE framework.
2423 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2425 *) Under Win32 gmtime() can return NULL: check return value in
2426 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2429 *) DSA routines: under certain error conditions uninitialized BN objects
2430 could be freed. Solution: make sure initialization is performed early
2431 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2432 Nils Larsch <nla@trustcenter.de> via PR#459)
2435 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2436 checked on reconnect on the client side, therefore session resumption
2437 could still fail with a "ssl session id is different" error. This
2438 behaviour is masked when SSL_OP_ALL is used due to
2439 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2440 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2441 followup to PR #377.
2444 *) IA-32 assembler support enhancements: unified ELF targets, support
2445 for SCO/Caldera platforms, fix for Cygwin shared build.
2448 *) Add support for FreeBSD on sparc64. As a consequence, support for
2449 FreeBSD on non-x86 processors is separate from x86 processors on
2450 the config script, much like the NetBSD support.
2451 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2453 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2455 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2458 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2459 code (06) was taken as the first octet of the session ID and the last
2460 octet was ignored consequently. As a result SSLv2 client side session
2461 caching could not have worked due to the session ID mismatch between
2463 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2467 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2468 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2472 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2473 seems that in spite of existing for more than a year, many application
2474 author have done nothing to provide the necessary callbacks, which
2475 means that this particular engine will not work properly anywhere.
2476 This is a very unfortunate situation which forces us, in the name
2477 of usability, to give the hw_ncipher.c a static lock, which is part
2479 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2480 appear in 0.9.8 or later. We EXPECT application authors to have
2481 dealt properly with this when 0.9.8 is released (unless we actually
2482 make such changes in the libcrypto locking code that changes will
2483 have to be made anyway).
2486 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2487 octets have been read, EOF or an error occurs. Without this change
2488 some truncated ASN1 structures will not produce an error.
2491 *) Disable Heimdal support, since it hasn't been fully implemented.
2492 Still give the possibility to force the use of Heimdal, but with
2493 warnings and a request that patches get sent to openssl-dev.
2496 *) Add the VC-CE target, introduce the WINCE sysname, and add
2497 INSTALL.WCE and appropriate conditionals to make it build.
2498 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2500 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2501 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2502 edit numbers of the version.
2503 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2505 *) Introduce safe string copy and catenation functions
2506 (BUF_strlcpy() and BUF_strlcat()).
2507 [Ben Laurie (CHATS) and Richard Levitte]
2509 *) Avoid using fixed-size buffers for one-line DNs.
2510 [Ben Laurie (CHATS)]
2512 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2513 resizing buffers containing secrets, and use where appropriate.
2514 [Ben Laurie (CHATS)]
2516 *) Avoid using fixed size buffers for configuration file location.
2517 [Ben Laurie (CHATS)]
2519 *) Avoid filename truncation for various CA files.
2520 [Ben Laurie (CHATS)]
2522 *) Use sizeof in preference to magic numbers.
2523 [Ben Laurie (CHATS)]
2525 *) Avoid filename truncation in cert requests.
2526 [Ben Laurie (CHATS)]
2528 *) Add assertions to check for (supposedly impossible) buffer
2530 [Ben Laurie (CHATS)]
2532 *) Don't cache truncated DNS entries in the local cache (this could
2533 potentially lead to a spoofing attack).
2534 [Ben Laurie (CHATS)]
2536 *) Fix various buffers to be large enough for hex/decimal
2537 representations in a platform independent manner.
2538 [Ben Laurie (CHATS)]
2540 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2541 resizing buffers containing secrets, and use where appropriate.
2542 [Ben Laurie (CHATS)]
2544 *) Add BIO_indent() to avoid much slightly worrying code to do
2546 [Ben Laurie (CHATS)]
2548 *) Convert sprintf()/BIO_puts() to BIO_printf().
2549 [Ben Laurie (CHATS)]
2551 *) buffer_gets() could terminate with the buffer only half
2553 [Ben Laurie (CHATS)]
2555 *) Add assertions to prevent user-supplied crypto functions from
2556 overflowing internal buffers by having large block sizes, etc.
2557 [Ben Laurie (CHATS)]
2559 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2561 [Ben Laurie (CHATS)]
2563 *) Eliminate unused copy of key in RC4.
2564 [Ben Laurie (CHATS)]
2566 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2567 [Ben Laurie (CHATS)]
2569 *) Fix off-by-one error in EGD path.
2570 [Ben Laurie (CHATS)]
2572 *) If RANDFILE path is too long, ignore instead of truncating.
2573 [Ben Laurie (CHATS)]
2575 *) Eliminate unused and incorrectly sized X.509 structure
2577 [Ben Laurie (CHATS)]
2579 *) Eliminate unused and dangerous function knumber().
2580 [Ben Laurie (CHATS)]
2582 *) Eliminate unused and dangerous structure, KSSL_ERR.
2583 [Ben Laurie (CHATS)]
2585 *) Protect against overlong session ID context length in an encoded
2586 session object. Since these are local, this does not appear to be
2588 [Ben Laurie (CHATS)]
2590 *) Change from security patch (see 0.9.6e below) that did not affect
2591 the 0.9.6 release series:
2593 Remote buffer overflow in SSL3 protocol - an attacker could
2594 supply an oversized master key in Kerberos-enabled versions.
2596 [Ben Laurie (CHATS)]
2598 *) Change the SSL kerb5 codes to match RFC 2712.
2601 *) Make -nameopt work fully for req and add -reqopt switch.
2602 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2604 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2605 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2607 *) Make sure tests can be performed even if the corresponding algorithms
2608 have been removed entirely. This was also the last step to make
2609 OpenSSL compilable with DJGPP under all reasonable conditions.
2610 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2612 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2613 to allow version independent disabling of normally unselected ciphers,
2614 which may be activated as a side-effect of selecting a single cipher.
2616 (E.g., cipher list string "RSA" enables ciphersuites that are left
2617 out of "ALL" because they do not provide symmetric encryption.
2618 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2619 [Lutz Jaenicke, Bodo Moeller]
2621 *) Add appropriate support for separate platform-dependent build
2622 directories. The recommended way to make a platform-dependent
2623 build directory is the following (tested on Linux), maybe with
2626 # Place yourself outside of the OpenSSL source tree. In
2627 # this example, the environment variable OPENSSL_SOURCE
2628 # is assumed to contain the absolute OpenSSL source directory.
2629 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2630 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2631 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2632 mkdir -p `dirname $F`
2633 ln -s $OPENSSL_SOURCE/$F $F
2636 To be absolutely sure not to disturb the source tree, a "make clean"
2637 is a good thing. If it isn't successfull, don't worry about it,
2638 it probably means the source directory is very clean.
2641 *) Make sure any ENGINE control commands make local copies of string
2642 pointers passed to them whenever necessary. Otherwise it is possible
2643 the caller may have overwritten (or deallocated) the original string
2644 data when a later ENGINE operation tries to use the stored values.
2645 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2647 *) Improve diagnostics in file reading and command-line digests.
2648 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2650 *) Add AES modes CFB and OFB to the object database. Correct an
2651 error in AES-CFB decryption.
2654 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2655 allows existing EVP_CIPHER_CTX structures to be reused after
2656 calling EVP_*Final(). This behaviour is used by encryption
2657 BIOs and some applications. This has the side effect that
2658 applications must explicitly clean up cipher contexts with
2659 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2662 *) Check the values of dna and dnb in bn_mul_recursive before calling
2663 bn_mul_comba (a non zero value means the a or b arrays do not contain
2664 n2 elements) and fallback to bn_mul_normal if either is not zero.
2667 *) Fix escaping of non-ASCII characters when using the -subj option
2668 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2671 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2672 form for "surname", serialNumber has no short form.
2673 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2674 therefore remove "mail" short name for "internet 7".
2675 The OID for unique identifiers in X509 certificates is
2676 x500UniqueIdentifier, not uniqueIdentifier.
2677 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2680 *) Add an "init" command to the ENGINE config module and auto initialize
2681 ENGINEs. Without any "init" command the ENGINE will be initialized
2682 after all ctrl commands have been executed on it. If init=1 the
2683 ENGINE is initailized at that point (ctrls before that point are run
2684 on the uninitialized ENGINE and after on the initialized one). If
2685 init=0 then the ENGINE will not be iniatialized at all.
2688 *) Fix the 'app_verify_callback' interface so that the user-defined
2689 argument is actually passed to the callback: In the
2690 SSL_CTX_set_cert_verify_callback() prototype, the callback
2691 declaration has been changed from
2694 int (*cb)(X509_STORE_CTX *,void *);
2695 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2696 i=s->ctx->app_verify_callback(&ctx)
2697 has been changed into
2698 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2700 To update applications using SSL_CTX_set_cert_verify_callback(),
2701 a dummy argument can be added to their callback functions.
2702 [D. K. Smetters <smetters@parc.xerox.com>]
2704 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2705 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2707 *) Add and OPENSSL_LOAD_CONF define which will cause
2708 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2709 This allows older applications to transparently support certain
2710 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2711 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2712 load the config file and OPENSSL_add_all_algorithms_conf() which will
2713 always load it have also been added.
2716 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2717 Adjust NIDs and EVP layer.
2718 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2720 *) Config modules support in openssl utility.
2722 Most commands now load modules from the config file,
2723 though in a few (such as version) this isn't done
2724 because it couldn't be used for anything.
2726 In the case of ca and req the config file used is
2727 the same as the utility itself: that is the -config
2728 command line option can be used to specify an
2732 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2733 use "openssl_conf" if filename is NULL use default openssl config file.
2736 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2737 config section name. Add a new flag to tolerate a missing config file
2738 and move code to CONF_modules_load_file().
2741 *) Support for crypto accelerator cards from Accelerated Encryption
2742 Processing, www.aep.ie. (Use engine 'aep')
2743 The support was copied from 0.9.6c [engine] and adapted/corrected
2744 to work with the new engine framework.
2745 [AEP Inc. and Richard Levitte]
2747 *) Support for SureWare crypto accelerator cards from Baltimore
2748 Technologies. (Use engine 'sureware')
2749 The support was copied from 0.9.6c [engine] and adapted
2750 to work with the new engine framework.
2753 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2754 make the newer ENGINE framework commands for the CHIL engine work.
2755 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2757 *) Make it possible to produce shared libraries on ReliantUNIX.
2758 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2760 *) Add the configuration target debug-linux-ppro.
2761 Make 'openssl rsa' use the general key loading routines
2762 implemented in apps.c, and make those routines able to
2763 handle the key format FORMAT_NETSCAPE and the variant
2765 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2767 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2768 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2770 *) Add -keyform to rsautl, and document -engine.
2771 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2773 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2774 BIO_R_NO_SUCH_FILE error code rather than the generic
2775 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2778 *) Add new functions
2780 ERR_peek_last_error_line
2781 ERR_peek_last_error_line_data.
2782 These are similar to
2785 ERR_peek_error_line_data,
2786 but report on the latest error recorded rather than the first one
2787 still in the error queue.
2788 [Ben Laurie, Bodo Moeller]
2790 *) default_algorithms option in ENGINE config module. This allows things
2792 default_algorithms = ALL
2793 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2796 *) Prelminary ENGINE config module.
2799 *) New experimental application configuration code.
2802 *) Change the AES code to follow the same name structure as all other
2803 symmetric ciphers, and behave the same way. Move everything to
2804 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2805 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2807 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2808 [Ben Laurie and Theo de Raadt]
2810 *) Add option to output public keys in req command.
2811 [Massimiliano Pala madwolf@openca.org]
2813 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2814 (up to about 10% better than before for P-192 and P-224).
2817 *) New functions/macros
2819 SSL_CTX_set_msg_callback(ctx, cb)
2820 SSL_CTX_set_msg_callback_arg(ctx, arg)
2821 SSL_set_msg_callback(ssl, cb)
2822 SSL_set_msg_callback_arg(ssl, arg)
2824 to request calling a callback function
2826 void cb(int write_p, int version, int content_type,
2827 const void *buf, size_t len, SSL *ssl, void *arg)
2829 whenever a protocol message has been completely received
2830 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2831 protocol version according to which the SSL library interprets
2832 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2833 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2834 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2835 specification (change_cipher_spec(20), alert(21), handshake(22)).
2836 'buf' and 'len' point to the actual message, 'ssl' to the
2837 SSL object, and 'arg' is the application-defined value set by
2838 SSL[_CTX]_set_msg_callback_arg().
2840 'openssl s_client' and 'openssl s_server' have new '-msg' options
2841 to enable a callback that displays all protocol messages.
2844 *) Change the shared library support so shared libraries are built as
2845 soon as the corresponding static library is finished, and thereby get
2846 openssl and the test programs linked against the shared library.
2847 This still only happens when the keyword "shard" has been given to
2848 the configuration scripts.
2850 NOTE: shared library support is still an experimental thing, and
2851 backward binary compatibility is still not guaranteed.
2852 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2854 *) Add support for Subject Information Access extension.
2855 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2857 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2858 additional bytes when new memory had to be allocated, not just
2859 when reusing an existing buffer.
2862 *) New command line and configuration option 'utf8' for the req command.
2863 This allows field values to be specified as UTF8 strings.
2866 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2867 runs for the former and machine-readable output for the latter.
2870 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2871 of the e-mail address in the DN (i.e., it will go into a certificate
2872 extension only). The new configuration file option 'email_in_dn = no'
2873 has the same effect.
2874 [Massimiliano Pala madwolf@openca.org]
2876 *) Change all functions with names starting with des_ to be starting
2877 with DES_ instead. Add wrappers that are compatible with libdes,
2878 but are named _ossl_old_des_*. Finally, add macros that map the
2879 des_* symbols to the corresponding _ossl_old_des_* if libdes
2880 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2881 desired, the des_* symbols will be mapped to DES_*, with one
2884 Since we provide two compatibility mappings, the user needs to
2885 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2886 compatibility is desired. The default (i.e., when that macro
2887 isn't defined) is OpenSSL 0.9.6c compatibility.
2889 There are also macros that enable and disable the support of old
2890 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2891 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2892 are defined, the default will apply: to support the old des routines.
2894 In either case, one must include openssl/des.h to get the correct
2895 definitions. Do not try to just include openssl/des_old.h, that
2898 NOTE: This is a major break of an old API into a new one. Software
2899 authors are encouraged to switch to the DES_ style functions. Some
2900 time in the future, des_old.h and the libdes compatibility functions
2901 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2902 default), and then completely removed.
2905 *) Test for certificates which contain unsupported critical extensions.
2906 If such a certificate is found during a verify operation it is
2907 rejected by default: this behaviour can be overridden by either
2908 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2909 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2910 X509_supported_extension() has also been added which returns 1 if a
2911 particular extension is supported.
2914 *) Modify the behaviour of EVP cipher functions in similar way to digests
2915 to retain compatibility with existing code.
2918 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2919 compatibility with existing code. In particular the 'ctx' parameter does
2920 not have to be to be initialized before the call to EVP_DigestInit() and
2921 it is tidied up after a call to EVP_DigestFinal(). New function
2922 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2923 EVP_MD_CTX_copy() changed to not require the destination to be
2924 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2925 requires the destination to be valid.
2927 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2928 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2931 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2932 so that complete 'Handshake' protocol structures are kept in memory
2933 instead of overwriting 'msg_type' and 'length' with 'body' data.
2936 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2937 [Massimo Santin via Richard Levitte]
2939 *) Major restructuring to the underlying ENGINE code. This includes
2940 reduction of linker bloat, separation of pure "ENGINE" manipulation
2941 (initialisation, etc) from functionality dealing with implementations
2942 of specific crypto iterfaces. This change also introduces integrated
2943 support for symmetric ciphers and digest implementations - so ENGINEs
2944 can now accelerate these by providing EVP_CIPHER and EVP_MD
2945 implementations of their own. This is detailed in crypto/engine/README
2946 as it couldn't be adequately described here. However, there are a few
2947 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2948 were changed in the original introduction of ENGINE code have now
2949 reverted back - the hooking from this code to ENGINE is now a good
2950 deal more passive and at run-time, operations deal directly with
2951 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2952 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2953 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2954 they were not being used by the framework as there is no concept of a
2955 BIGNUM_METHOD and they could not be generalised to the new
2956 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2957 ENGINE_cpy() has been removed as it cannot be consistently defined in
2961 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2964 *) Change mkdef.pl to sort symbols that get the same entry number,
2965 and make sure the automatically generated functions ERR_load_*
2966 become part of libeay.num as well.
2969 *) New function SSL_renegotiate_pending(). This returns true once
2970 renegotiation has been requested (either SSL_renegotiate() call
2971 or HelloRequest/ClientHello receveived from the peer) and becomes
2972 false once a handshake has been completed.
2973 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2974 sends a HelloRequest, but does not ensure that a handshake takes
2975 place. SSL_renegotiate_pending() is useful for checking if the
2976 client has followed the request.)
2979 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2980 By default, clients may request session resumption even during
2981 renegotiation (if session ID contexts permit); with this option,
2982 session resumption is possible only in the first handshake.
2984 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2985 more bits available for options that should not be part of
2986 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2989 *) Add some demos for certificate and certificate request creation.
2992 *) Make maximum certificate chain size accepted from the peer application
2993 settable (SSL*_get/set_max_cert_list()), as proposed by
2994 "Douglas E. Engert" <deengert@anl.gov>.
2997 *) Add support for shared libraries for Unixware-7
2998 (Boyd Lynn Gerber <gerberb@zenez.com>).
3001 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3002 be done prior to destruction. Use this to unload error strings from
3003 ENGINEs that load their own error strings. NB: This adds two new API
3004 functions to "get" and "set" this destroy handler in an ENGINE.
3007 *) Alter all existing ENGINE implementations (except "openssl" and
3008 "openbsd") to dynamically instantiate their own error strings. This
3009 makes them more flexible to be built both as statically-linked ENGINEs
3010 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3011 Also, add stub code to each that makes building them as self-contained
3012 shared-libraries easier (see README.ENGINE).
3015 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3016 implementations into applications that are completely implemented in
3017 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3018 commands that can be used to configure what shared-library to load and
3019 to control aspects of the way it is handled. Also, made an update to
3020 the README.ENGINE file that brings its information up-to-date and
3021 provides some information and instructions on the "dynamic" ENGINE
3022 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3025 *) Make it possible to unload ranges of ERR strings with a new
3026 "ERR_unload_strings" function.
3029 *) Add a copy() function to EVP_MD.
3032 *) Make EVP_MD routines take a context pointer instead of just the
3033 md_data void pointer.
3036 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3037 that the digest can only process a single chunk of data
3038 (typically because it is provided by a piece of
3039 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3040 is only going to provide a single chunk of data, and hence the
3041 framework needn't accumulate the data for oneshot drivers.
3044 *) As with "ERR", make it possible to replace the underlying "ex_data"
3045 functions. This change also alters the storage and management of global
3046 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3047 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3048 index counters. The API functions that use this state have been changed
3049 to take a "class_index" rather than pointers to the class's local STACK
3050 and counter, and there is now an API function to dynamically create new
3051 classes. This centralisation allows us to (a) plug a lot of the
3052 thread-safety problems that existed, and (b) makes it possible to clean
3053 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3054 such data would previously have always leaked in application code and
3055 workarounds were in place to make the memory debugging turn a blind eye
3056 to it. Application code that doesn't use this new function will still
3057 leak as before, but their memory debugging output will announce it now
3058 rather than letting it slide.
3060 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3061 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3062 has a return value to indicate success or failure.
3065 *) Make it possible to replace the underlying "ERR" functions such that the
3066 global state (2 LHASH tables and 2 locks) is only used by the "default"
3067 implementation. This change also adds two functions to "get" and "set"
3068 the implementation prior to it being automatically set the first time
3069 any other ERR function takes place. Ie. an application can call "get",
3070 pass the return value to a module it has just loaded, and that module
3071 can call its own "set" function using that value. This means the
3072 module's "ERR" operations will use (and modify) the error state in the
3073 application and not in its own statically linked copy of OpenSSL code.
3076 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3077 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3078 the operation, and provides a more encapsulated way for external code
3079 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3080 to use these functions rather than manually incrementing the counts.
3082 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3085 *) Add EVP test program.
3088 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3091 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3092 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3093 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3094 These allow a CRL to be built without having to access X509_CRL fields
3095 directly. Modify 'ca' application to use new functions.
3098 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3099 bug workarounds. Rollback attack detection is a security feature.
3100 The problem will only arise on OpenSSL servers when TLSv1 is not
3101 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3102 Software authors not wanting to support TLSv1 will have special reasons
3103 for their choice and can explicitly enable this option.
3104 [Bodo Moeller, Lutz Jaenicke]
3106 *) Rationalise EVP so it can be extended: don't include a union of
3107 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3108 (similar to those existing for EVP_CIPHER_CTX).
3113 EVP_MD_CTX_init(&md); /* new function call */
3114 EVP_DigestInit(&md, EVP_sha1());
3115 EVP_DigestUpdate(&md, in, len);
3116 EVP_DigestFinal(&md, out, NULL);
3117 EVP_MD_CTX_cleanup(&md); /* new function call */
3121 *) Make DES key schedule conform to the usual scheme, as well as
3122 correcting its structure. This means that calls to DES functions
3123 now have to pass a pointer to a des_key_schedule instead of a
3124 plain des_key_schedule (which was actually always a pointer
3127 des_key_schedule ks;
3129 des_set_key_checked(..., &ks);
3130 des_ncbc_encrypt(..., &ks, ...);
3132 (Note that a later change renames 'des_...' into 'DES_...'.)
3135 *) Initial reduction of linker bloat: the use of some functions, such as
3136 PEM causes large amounts of unused functions to be linked in due to
3137 poor organisation. For example pem_all.c contains every PEM function
3138 which has a knock on effect of linking in large amounts of (unused)
3139 ASN1 code. Grouping together similar functions and splitting unrelated
3140 functions prevents this.
3143 *) Cleanup of EVP macros.
3146 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3147 correct _ecb suffix.
3150 *) Add initial OCSP responder support to ocsp application. The
3151 revocation information is handled using the text based index
3152 use by the ca application. The responder can either handle
3153 requests generated internally, supplied in files (for example
3154 via a CGI script) or using an internal minimal server.
3157 *) Add configuration choices to get zlib compression for TLS.
3160 *) Changes to Kerberos SSL for RFC 2712 compliance:
3161 1. Implemented real KerberosWrapper, instead of just using
3162 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3163 2. Implemented optional authenticator field of KerberosWrapper.
3165 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3166 and authenticator structs; see crypto/krb5/.
3168 Generalized Kerberos calls to support multiple Kerberos libraries.
3169 [Vern Staats <staatsvr@asc.hpc.mil>,
3170 Jeffrey Altman <jaltman@columbia.edu>
3171 via Richard Levitte]
3173 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3174 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3175 values for each of the key sizes rather than having just
3176 parameters (and 'speed' generating keys each time).
3179 *) Speed up EVP routines.
3182 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3183 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3184 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3185 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3187 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3188 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3189 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3192 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3194 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3197 *) Added the OS2-EMX target.
3198 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3200 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3201 to support NCONF routines in extension code. New function CONF_set_nconf()
3202 to allow functions which take an NCONF to also handle the old LHASH
3203 structure: this means that the old CONF compatible routines can be
3204 retained (in particular wrt extensions) without having to duplicate the
3205 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3208 *) Enhance the general user interface with mechanisms for inner control
3209 and with possibilities to have yes/no kind of prompts.
3212 *) Change all calls to low level digest routines in the library and
3213 applications to use EVP. Add missing calls to HMAC_cleanup() and
3214 don't assume HMAC_CTX can be copied using memcpy().
3215 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3217 *) Add the possibility to control engines through control names but with
3218 arbitrary arguments instead of just a string.
3219 Change the key loaders to take a UI_METHOD instead of a callback
3220 function pointer. NOTE: this breaks binary compatibility with earlier
3221 versions of OpenSSL [engine].
3222 Adapt the nCipher code for these new conditions and add a card insertion
3226 *) Enhance the general user interface with mechanisms to better support
3227 dialog box interfaces, application-defined prompts, the possibility
3228 to use defaults (for example default passwords from somewhere else)
3229 and interrupts/cancellations.
3232 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3233 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3236 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3237 tidy up some unnecessarily weird code in 'sk_new()').
3238 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3240 *) Change the key loading routines for ENGINEs to use the same kind
3241 callback (pem_password_cb) as all other routines that need this
3245 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3246 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3247 than this minimum value is recommended.
3250 *) New random seeder for OpenVMS, using the system process statistics
3251 that are easily reachable.
3254 *) Windows apparently can't transparently handle global
3255 variables defined in DLLs. Initialisations such as:
3257 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3259 wont compile. This is used by the any applications that need to
3260 declare their own ASN1 modules. This was fixed by adding the option
3261 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3262 needed for static libraries under Win32.
3265 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3266 setting of purpose and trust fields. New X509_STORE trust and
3267 purpose functions and tidy up setting in other SSL functions.
3270 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3271 structure. These are inherited by X509_STORE_CTX when it is
3272 initialised. This allows various defaults to be set in the
3273 X509_STORE structure (such as flags for CRL checking and custom
3274 purpose or trust settings) for functions which only use X509_STORE_CTX
3275 internally such as S/MIME.
3277 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3278 trust settings if they are not set in X509_STORE. This allows X509_STORE
3279 purposes and trust (in S/MIME for example) to override any set by default.
3281 Add command line options for CRL checking to smime, s_client and s_server
3285 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3286 are set then the CRL is looked up in the X509_STORE structure and
3287 its validity and signature checked, then if the certificate is found
3288 in the CRL the verify fails with a revoked error.
3290 Various new CRL related callbacks added to X509_STORE_CTX structure.
3292 Command line options added to 'verify' application to support this.
3294 This needs some additional work, such as being able to handle multiple
3295 CRLs with different times, extension based lookup (rather than just
3296 by subject name) and ultimately more complete V2 CRL extension
3300 *) Add a general user interface API (crypto/ui/). This is designed
3301 to replace things like des_read_password and friends (backward
3302 compatibility functions using this new API are provided).
3303 The purpose is to remove prompting functions from the DES code
3304 section as well as provide for prompting through dialog boxes in
3305 a window system and the like.
3308 *) Add "ex_data" support to ENGINE so implementations can add state at a
3309 per-structure level rather than having to store it globally.
3312 *) Make it possible for ENGINE structures to be copied when retrieved by
3313 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3314 This causes the "original" ENGINE structure to act like a template,
3315 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3316 operational state can be localised to each ENGINE structure, despite the
3317 fact they all share the same "methods". New ENGINE structures returned in
3318 this case have no functional references and the return value is the single
3319 structural reference. This matches the single structural reference returned
3320 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3324 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3325 needs to match any other type at all we need to manually clear the
3329 *) Changes to the "openssl engine" utility to include;
3330 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3331 about an ENGINE's available control commands.
3332 - executing control commands from command line arguments using the
3333 '-pre' and '-post' switches. '-post' is only used if '-t' is
3334 specified and the ENGINE is successfully initialised. The syntax for
3335 the individual commands are colon-separated, for example;
3336 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3339 *) New dynamic control command support for ENGINEs. ENGINEs can now
3340 declare their own commands (numbers), names (strings), descriptions,
3341 and input types for run-time discovery by calling applications. A
3342 subset of these commands are implicitly classed as "executable"
3343 depending on their input type, and only these can be invoked through
3344 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3345 can be based on user input, config files, etc). The distinction is
3346 that "executable" commands cannot return anything other than a boolean
3347 result and can only support numeric or string input, whereas some
3348 discoverable commands may only be for direct use through
3349 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3350 pointers, or other custom uses. The "executable" commands are to
3351 support parameterisations of ENGINE behaviour that can be
3352 unambiguously defined by ENGINEs and used consistently across any
3353 OpenSSL-based application. Commands have been added to all the
3354 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3355 control over shared-library paths without source code alterations.
3358 *) Changed all ENGINE implementations to dynamically allocate their
3359 ENGINEs rather than declaring them statically. Apart from this being
3360 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3361 this also allows the implementations to compile without using the
3362 internal engine_int.h header.
3365 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3366 'const' value. Any code that should be able to modify a RAND_METHOD
3367 should already have non-const pointers to it (ie. they should only
3368 modify their own ones).
3371 *) Made a variety of little tweaks to the ENGINE code.
3372 - "atalla" and "ubsec" string definitions were moved from header files
3373 to C code. "nuron" string definitions were placed in variables
3374 rather than hard-coded - allowing parameterisation of these values
3375 later on via ctrl() commands.
3376 - Removed unused "#if 0"'d code.
3377 - Fixed engine list iteration code so it uses ENGINE_free() to release
3378 structural references.
3379 - Constified the RAND_METHOD element of ENGINE structures.
3380 - Constified various get/set functions as appropriate and added
3381 missing functions (including a catch-all ENGINE_cpy that duplicates
3382 all ENGINE values onto a new ENGINE except reference counts/state).
3383 - Removed NULL parameter checks in get/set functions. Setting a method
3384 or function to NULL is a way of cancelling out a previously set
3385 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3386 and doesn't justify the extra error symbols and code.
3387 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3388 flags from engine_int.h to engine.h.
3389 - Changed prototypes for ENGINE handler functions (init(), finish(),
3390 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3393 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3394 to the algorithm using long division. The binary algorithm can be
3395 used only if the modulus is odd. On 32-bit systems, it is faster
3396 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3397 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3398 up to 450 bits. In 64-bit environments, the binary algorithm
3399 appears to be advantageous for much longer moduli; here we use it
3400 for moduli up to 2048 bits.
3403 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3404 could not support the combine flag in choice fields.
3407 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3408 extensions from a certificate request to the certificate.
3411 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3412 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3413 file: this allows the display of the certificate about to be
3414 signed to be customised, to allow certain fields to be included
3415 or excluded and extension details. The old system didn't display
3416 multicharacter strings properly, omitted fields not in the policy
3417 and couldn't display additional details such as extensions.
3420 *) Function EC_POINTs_mul for multiple scalar multiplication
3421 of an arbitrary number of elliptic curve points
3422 \sum scalars[i]*points[i],
3423 optionally including the generator defined for the EC_GROUP:
3424 scalar*generator + \sum scalars[i]*points[i].
3426 EC_POINT_mul is a simple wrapper function for the typical case
3427 that the point list has just one item (besides the optional
3431 *) First EC_METHODs for curves over GF(p):
3433 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3434 operations and provides various method functions that can also
3435 operate with faster implementations of modular arithmetic.
3437 EC_GFp_mont_method() reuses most functions that are part of
3438 EC_GFp_simple_method, but uses Montgomery arithmetic.
3440 [Bodo Moeller; point addition and point doubling
3441 implementation directly derived from source code provided by
3442 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3444 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3445 crypto/ec/ec_lib.c):
3447 Curves are EC_GROUP objects (with an optional group generator)
3448 based on EC_METHODs that are built into the library.
3450 Points are EC_POINT objects based on EC_GROUP objects.
3452 Most of the framework would be able to handle curves over arbitrary
3453 finite fields, but as there are no obvious types for fields other
3454 than GF(p), some functions are limited to that for now.
3457 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3458 that the file contains a complete HTTP response.
3461 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3462 change the def and num file printf format specifier from "%-40sXXX"
3463 to "%-39s XXX". The latter will always guarantee a space after the
3464 field while the former will cause them to run together if the field
3465 is 40 of more characters long.
3468 *) Constify the cipher and digest 'method' functions and structures
3469 and modify related functions to take constant EVP_MD and EVP_CIPHER
3473 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3474 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3477 *) Modify EVP_Digest*() routines so they now return values. Although the
3478 internal software routines can never fail additional hardware versions
3482 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3484 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3485 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3488 ERR_R_NESTED_ASN1_ERROR
3490 ERR_R_MISSING_ASN1_EOS
3491 were 4 .. 9, conflicting with
3492 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3494 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3495 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3497 Add new error code 'ERR_R_INTERNAL_ERROR'.
3500 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3504 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3505 sets the subject name for a new request or supersedes the
3506 subject name in a given request. Formats that can be parsed are
3507 'CN=Some Name, OU=myOU, C=IT'
3509 'CN=Some Name/OU=myOU/C=IT'.
3511 Add options '-batch' and '-verbose' to 'openssl req'.
3512 [Massimiliano Pala <madwolf@hackmasters.net>]
3514 *) Introduce the possibility to access global variables through
3515 functions on platform were that's the best way to handle exporting
3516 global variables in shared libraries. To enable this functionality,
3517 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3518 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3519 is normally done by Configure or something similar).
3521 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3522 in the source file (foo.c) like this:
3524 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3525 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3527 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3528 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3530 OPENSSL_DECLARE_GLOBAL(int,foo);
3531 #define foo OPENSSL_GLOBAL_REF(foo)
3532 OPENSSL_DECLARE_GLOBAL(double,bar);
3533 #define bar OPENSSL_GLOBAL_REF(bar)
3535 The #defines are very important, and therefore so is including the
3536 header file everywhere where the defined globals are used.
3538 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3539 of ASN.1 items, but that structure is a bit different.
3541 The largest change is in util/mkdef.pl which has been enhanced with
3542 better and easier to understand logic to choose which symbols should
3543 go into the Windows .def files as well as a number of fixes and code
3544 cleanup (among others, algorithm keywords are now sorted
3545 lexicographically to avoid constant rewrites).
3548 *) In BN_div() keep a copy of the sign of 'num' before writing the
3549 result to 'rm' because if rm==num the value will be overwritten
3550 and produce the wrong result if 'num' is negative: this caused
3551 problems with BN_mod() and BN_nnmod().
3554 *) Function OCSP_request_verify(). This checks the signature on an
3555 OCSP request and verifies the signer certificate. The signer
3556 certificate is just checked for a generic purpose and OCSP request
3560 *) Add OCSP_check_validity() function to check the validity of OCSP
3561 responses. OCSP responses are prepared in real time and may only
3562 be a few seconds old. Simply checking that the current time lies
3563 between thisUpdate and nextUpdate max reject otherwise valid responses
3564 caused by either OCSP responder or client clock inaccuracy. Instead
3565 we allow thisUpdate and nextUpdate to fall within a certain period of
3566 the current time. The age of the response can also optionally be
3567 checked. Two new options -validity_period and -status_age added to
3571 *) If signature or public key algorithm is unrecognized print out its
3572 OID rather that just UNKNOWN.
3575 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3576 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3577 ID to be generated from the issuer certificate alone which can then be
3578 passed to OCSP_id_issuer_cmp().
3581 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3582 ASN1 modules to export functions returning ASN1_ITEM pointers
3583 instead of the ASN1_ITEM structures themselves. This adds several
3584 new macros which allow the underlying ASN1 function/structure to
3585 be accessed transparently. As a result code should not use ASN1_ITEM
3586 references directly (such as &X509_it) but instead use the relevant
3587 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3588 use of the new ASN1 code on platforms where exporting structures
3589 is problematical (for example in shared libraries) but exporting
3590 functions returning pointers to structures is not.
3593 *) Add support for overriding the generation of SSL/TLS session IDs.
3594 These callbacks can be registered either in an SSL_CTX or per SSL.
3595 The purpose of this is to allow applications to control, if they wish,
3596 the arbitrary values chosen for use as session IDs, particularly as it
3597 can be useful for session caching in multiple-server environments. A
3598 command-line switch for testing this (and any client code that wishes
3599 to use such a feature) has been added to "s_server".
3600 [Geoff Thorpe, Lutz Jaenicke]
3602 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3603 of the form '#if defined(...) || defined(...) || ...' and
3604 '#if !defined(...) && !defined(...) && ...'. This also avoids
3605 the growing number of special cases it was previously handling.
3608 *) Make all configuration macros available for application by making
3609 sure they are available in opensslconf.h, by giving them names starting
3610 with "OPENSSL_" to avoid conflicts with other packages and by making
3611 sure e_os2.h will cover all platform-specific cases together with
3613 Additionally, it is now possible to define configuration/platform-
3614 specific names (called "system identities"). In the C code, these
3615 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3616 macro with the name beginning with "OPENSSL_SYS_", which is determined
3617 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3621 *) New option -set_serial to 'req' and 'x509' this allows the serial
3622 number to use to be specified on the command line. Previously self
3623 signed certificates were hard coded with serial number 0 and the
3624 CA options of 'x509' had to use a serial number in a file which was
3628 *) New options to 'ca' utility to support V2 CRL entry extensions.
3629 Currently CRL reason, invalidity date and hold instruction are
3630 supported. Add new CRL extensions to V3 code and some new objects.
3633 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3634 disable standard block padding (aka PKCS#5 padding) in the EVP
3635 API, which was previously mandatory. This means that the data is
3636 not padded in any way and so the total length much be a multiple
3637 of the block size, otherwise an error occurs.
3640 *) Initial (incomplete) OCSP SSL support.
3643 *) New function OCSP_parse_url(). This splits up a URL into its host,
3644 port and path components: primarily to parse OCSP URLs. New -url
3645 option to ocsp utility.
3648 *) New nonce behavior. The return value of OCSP_check_nonce() now
3649 reflects the various checks performed. Applications can decide
3650 whether to tolerate certain situations such as an absent nonce
3651 in a response when one was present in a request: the ocsp application
3652 just prints out a warning. New function OCSP_add1_basic_nonce()
3653 this is to allow responders to include a nonce in a response even if
3654 the request is nonce-less.
3657 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3658 skipped when using openssl x509 multiple times on a single input file,
3659 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3662 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3663 set string type: to handle setting ASN1_TIME structures. Fix ca
3664 utility to correctly initialize revocation date of CRLs.
3667 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3668 the clients preferred ciphersuites and rather use its own preferences.
3669 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3670 Internet Explorer by ensuring unchanged hash method during stepup.
3671 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3674 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3675 to aes and add a new 'exist' option to print out symbols that don't
3679 *) Additional options to ocsp utility to allow flags to be set and
3680 additional certificates supplied.
3683 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3684 OCSP client a number of certificate to only verify the response
3688 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3689 handle the new API. Currently only ECB, CBC modes supported. Add new
3692 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3693 Encryption Standard (AES) Ciphersuites for Transport Layer
3694 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3695 not enabled by default and were not part of the "ALL" ciphersuite
3696 alias because they were not yet official; they could be
3697 explicitly requested by specifying the "AESdraft" ciphersuite
3698 group alias. In the final release of OpenSSL 0.9.7, the group
3699 alias is called "AES" and is part of "ALL".)
3700 [Ben Laurie, Steve Henson, Bodo Moeller]
3702 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3703 request to response.
3706 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3707 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3708 extract information from a certificate request. OCSP_response_create()
3709 creates a response and optionally adds a basic response structure.
3710 OCSP_basic_add1_status() adds a complete single response to a basic
3711 response and returns the OCSP_SINGLERESP structure just added (to allow
3712 extensions to be included for example). OCSP_basic_add1_cert() adds a
3713 certificate to a basic response and OCSP_basic_sign() signs a basic
3714 response with various flags. New helper functions ASN1_TIME_check()
3715 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3716 (converts ASN1_TIME to GeneralizedTime).
3719 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3720 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3721 structure from a certificate. X509_pubkey_digest() digests the public_key
3722 contents: this is used in various key identifiers.
3725 *) Make sk_sort() tolerate a NULL argument.
3726 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3728 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3729 passed by the function are trusted implicitly. If any of them signed the
3730 response then it is assumed to be valid and is not verified.
3733 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3734 to data. This was previously part of the PKCS7 ASN1 code. This
3735 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3736 [Steve Henson, reported by Kenneth R. Robinette
3737 <support@securenetterm.com>]
3739 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3740 routines: without these tracing memory leaks is very painful.
3741 Fix leaks in PKCS12 and PKCS7 routines.
3744 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3745 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3746 effectively meant GeneralizedTime would never be used. Now it
3747 is initialised to -1 but X509_time_adj() now has to check the value
3748 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3749 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3750 [Steve Henson, reported by Kenneth R. Robinette
3751 <support@securenetterm.com>]
3753 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3754 result in a zero length in the ASN1_INTEGER structure which was
3755 not consistent with the structure when d2i_ASN1_INTEGER() was used
3756 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3757 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3758 where it did not print out a minus for negative ASN1_INTEGER.
3761 *) Add summary printout to ocsp utility. The various functions which
3762 convert status values to strings have been renamed to:
3763 OCSP_response_status_str(), OCSP_cert_status_str() and
3764 OCSP_crl_reason_str() and are no longer static. New options
3765 to verify nonce values and to disable verification. OCSP response
3766 printout format cleaned up.
3769 *) Add additional OCSP certificate checks. These are those specified
3770 in RFC2560. This consists of two separate checks: the CA of the
3771 certificate being checked must either be the OCSP signer certificate
3772 or the issuer of the OCSP signer certificate. In the latter case the
3773 OCSP signer certificate must contain the OCSP signing extended key
3774 usage. This check is performed by attempting to match the OCSP
3775 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3776 in the OCSP_CERTID structures of the response.
3779 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3780 and related routines. This uses the standard OpenSSL certificate
3781 verify routines to perform initial checks (just CA validity) and
3782 to obtain the certificate chain. Then additional checks will be
3783 performed on the chain. Currently the root CA is checked to see
3784 if it is explicitly trusted for OCSP signing. This is used to set
3785 a root CA as a global signing root: that is any certificate that
3786 chains to that CA is an acceptable OCSP signing certificate.
3789 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3790 extensions from a separate configuration file.
3791 As when reading extensions from the main configuration file,
3792 the '-extensions ...' option may be used for specifying the
3794 [Massimiliano Pala <madwolf@comune.modena.it>]
3796 *) New OCSP utility. Allows OCSP requests to be generated or
3797 read. The request can be sent to a responder and the output
3798 parsed, outputed or printed in text form. Not complete yet:
3799 still needs to check the OCSP response validity.
3802 *) New subcommands for 'openssl ca':
3803 'openssl ca -status <serial>' prints the status of the cert with
3804 the given serial number (according to the index file).
3805 'openssl ca -updatedb' updates the expiry status of certificates
3807 [Massimiliano Pala <madwolf@comune.modena.it>]
3809 *) New '-newreq-nodes' command option to CA.pl. This is like
3810 '-newreq', but calls 'openssl req' with the '-nodes' option
3811 so that the resulting key is not encrypted.
3812 [Damien Miller <djm@mindrot.org>]
3814 *) New configuration for the GNU Hurd.
3815 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3817 *) Initial code to implement OCSP basic response verify. This
3818 is currently incomplete. Currently just finds the signer's
3819 certificate and verifies the signature on the response.
3822 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3823 value of OPENSSLDIR. This is available via the new '-d' option
3824 to 'openssl version', and is also included in 'openssl version -a'.
3827 *) Allowing defining memory allocation callbacks that will be given
3828 file name and line number information in additional arguments
3829 (a const char* and an int). The basic functionality remains, as
3830 well as the original possibility to just replace malloc(),
3831 realloc() and free() by functions that do not know about these
3832 additional arguments. To register and find out the current
3833 settings for extended allocation functions, the following
3834 functions are provided:
3836 CRYPTO_set_mem_ex_functions
3837 CRYPTO_set_locked_mem_ex_functions
3838 CRYPTO_get_mem_ex_functions
3839 CRYPTO_get_locked_mem_ex_functions
3841 These work the same way as CRYPTO_set_mem_functions and friends.
3842 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3843 extended allocation function is enabled.
3844 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3845 a conventional allocation function is enabled.
3846 [Richard Levitte, Bodo Moeller]
3848 *) Finish off removing the remaining LHASH function pointer casts.
3849 There should no longer be any prototype-casting required when using
3850 the LHASH abstraction, and any casts that remain are "bugs". See
3851 the callback types and macros at the head of lhash.h for details
3852 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3855 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3856 If /dev/[u]random devices are not available or do not return enough
3857 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3859 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3860 /etc/entropy will be queried once each in this sequence, quering stops
3861 when enough entropy was collected without querying more sockets.
3864 *) Change the Unix RAND_poll() variant to be able to poll several
3865 random devices, as specified by DEVRANDOM, until a sufficient amount
3866 of data has been collected. We spend at most 10 ms on each file
3867 (select timeout) and read in non-blocking mode. DEVRANDOM now
3868 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3869 (previously it was just the string "/dev/urandom"), so on typical
3870 platforms the 10 ms delay will never occur.
3871 Also separate out the Unix variant to its own file, rand_unix.c.
3872 For VMS, there's a currently-empty rand_vms.c.
3875 *) Move OCSP client related routines to ocsp_cl.c. These
3876 provide utility functions which an application needing
3877 to issue a request to an OCSP responder and analyse the
3878 response will typically need: as opposed to those which an
3879 OCSP responder itself would need which will be added later.
3881 OCSP_request_sign() signs an OCSP request with an API similar
3882 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3883 response. OCSP_response_get1_basic() extracts basic response
3884 from response. OCSP_resp_find_status(): finds and extracts status
3885 information from an OCSP_CERTID structure (which will be created
3886 when the request structure is built). These are built from lower
3887 level functions which work on OCSP_SINGLERESP structures but
3888 wont normally be used unless the application wishes to examine
3889 extensions in the OCSP response for example.
3891 Replace nonce routines with a pair of functions.
3892 OCSP_request_add1_nonce() adds a nonce value and optionally
3893 generates a random value. OCSP_check_nonce() checks the
3894 validity of the nonce in an OCSP response.
3897 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3898 This doesn't copy the supplied OCSP_CERTID and avoids the
3899 need to free up the newly created id. Change return type
3900 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3901 This can then be used to add extensions to the request.
3902 Deleted OCSP_request_new(), since most of its functionality
3903 is now in OCSP_REQUEST_new() (and the case insensitive name
3904 clash) apart from the ability to set the request name which
3905 will be added elsewhere.
3908 *) Update OCSP API. Remove obsolete extensions argument from
3909 various functions. Extensions are now handled using the new
3910 OCSP extension code. New simple OCSP HTTP function which
3911 can be used to send requests and parse the response.
3914 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3915 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3916 uses the special reorder version of SET OF to sort the attributes
3917 and reorder them to match the encoded order. This resolves a long
3918 standing problem: a verify on a PKCS7 structure just after signing
3919 it used to fail because the attribute order did not match the
3920 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3921 it uses the received order. This is necessary to tolerate some broken
3922 software that does not order SET OF. This is handled by encoding
3923 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3924 to produce the required SET OF.
3927 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3928 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3929 files to get correct declarations of the ASN.1 item variables.
3932 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3933 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3934 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3935 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3936 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3937 ASN1_ITEM and no wrapper functions.
3940 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3941 replace the old function pointer based I/O routines. Change most of
3942 the *_d2i_bio() and *_d2i_fp() functions to use these.
3945 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3946 lines, recognice more "algorithms" that can be deselected, and make
3947 it complain about algorithm deselection that isn't recognised.
3950 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3951 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3952 to use new functions. Add NO_ASN1_OLD which can be set to remove
3953 some old style ASN1 functions: this can be used to determine if old
3954 code will still work when these eventually go away.
3957 *) New extension functions for OCSP structures, these follow the
3958 same conventions as certificates and CRLs.
3961 *) New function X509V3_add1_i2d(). This automatically encodes and
3962 adds an extension. Its behaviour can be customised with various
3963 flags to append, replace or delete. Various wrappers added for
3964 certifcates and CRLs.
3967 *) Fix to avoid calling the underlying ASN1 print routine when
3968 an extension cannot be parsed. Correct a typo in the
3969 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3972 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3973 entries for variables.
3976 *) Add functionality to apps/openssl.c for detecting locking
3977 problems: As the program is single-threaded, all we have
3978 to do is register a locking callback using an array for
3979 storing which locks are currently held by the program.
3982 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3983 SSL_get_ex_data_X509_STORE_idx(), which is used in
3984 ssl_verify_cert_chain() and thus can be called at any time
3985 during TLS/SSL handshakes so that thread-safety is essential.
3986 Unfortunately, the ex_data design is not at all suited
3987 for multi-threaded use, so it probably should be abolished.
3990 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3991 [Broadcom, tweaked and integrated by Geoff Thorpe]
3993 *) Move common extension printing code to new function
3994 X509V3_print_extensions(). Reorganise OCSP print routines and
3995 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3998 *) New function X509_signature_print() to remove duplication in some
4002 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4003 set (this was treated exactly the same as SET OF previously). This
4004 is used to reorder the STACK representing the structure to match the
4005 encoding. This will be used to get round a problem where a PKCS7
4006 structure which was signed could not be verified because the STACK
4007 order did not reflect the encoded order.
4010 *) Reimplement the OCSP ASN1 module using the new code.
4013 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4014 for its ASN1 operations. The old style function pointers still exist
4015 for now but they will eventually go away.
4018 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4019 completely replaces the old ASN1 functionality with a table driven
4020 encoder and decoder which interprets an ASN1_ITEM structure describing
4021 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4022 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4023 has also been converted to the new form.
4026 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4027 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4028 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4029 for negative moduli.
4032 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4033 of not touching the result's sign bit.
4036 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4040 *) Changed the LHASH code to use prototypes for callbacks, and created
4041 macros to declare and implement thin (optionally static) functions
4042 that provide type-safety and avoid function pointer casting for the
4043 type-specific callbacks.
4046 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4048 [Veers Staats <staatsvr@asc.hpc.mil>,
4049 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4051 *) Reformat the FAQ so the different questions and answers can be divided
4052 in sections depending on the subject.
4055 *) Have the zlib compression code load ZLIB.DLL dynamically under
4059 *) New function BN_mod_sqrt for computing square roots modulo a prime
4060 (using the probabilistic Tonelli-Shanks algorithm unless
4061 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4062 be handled deterministically).
4063 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4065 *) Make BN_mod_inverse faster by explicitly handling small quotients
4066 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4067 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4070 *) New function BN_kronecker.
4073 *) Fix BN_gcd so that it works on negative inputs; the result is
4074 positive unless both parameters are zero.
4075 Previously something reasonably close to an infinite loop was
4076 possible because numbers could be growing instead of shrinking
4077 in the implementation of Euclid's algorithm.
4080 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4081 sign of the number in question.
4083 Fix BN_is_word(a,w) to work correctly for w == 0.
4085 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4086 because its test if the absolute value of 'a' equals 'w'.
4087 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4088 it exists mostly for use in the implementations of BN_is_zero(),
4089 BN_is_one(), and BN_is_word().
4092 *) New function BN_swap.
4095 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4096 the exponentiation functions are more likely to produce reasonable
4097 results on negative inputs.
4100 *) Change BN_mod_mul so that the result is always non-negative.
4101 Previously, it could be negative if one of the factors was negative;
4102 I don't think anyone really wanted that behaviour.
4105 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4106 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4107 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4108 and add new functions:
4117 BN_mod_lshift1_quick
4121 These functions always generate non-negative results.
4123 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4124 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4126 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4127 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4128 be reduced modulo m.
4129 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4132 The following entry accidentily appeared in the CHANGES file
4133 distributed with OpenSSL 0.9.7. The modifications described in
4134 it do *not* apply to OpenSSL 0.9.7.
4136 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4137 was actually never needed) and in BN_mul(). The removal in BN_mul()
4138 required a small change in bn_mul_part_recursive() and the addition
4139 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4140 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4141 bn_sub_words() and bn_add_words() except they take arrays with
4146 *) In 'openssl passwd', verify passwords read from the terminal
4147 unless the '-salt' option is used (which usually means that
4148 verification would just waste user's time since the resulting
4149 hash is going to be compared with some given password hash)
4150 or the new '-noverify' option is used.
4152 This is an incompatible change, but it does not affect
4153 non-interactive use of 'openssl passwd' (passwords on the command
4154 line, '-stdin' option, '-in ...' option) and thus should not
4158 *) Remove all references to RSAref, since there's no more need for it.
4161 *) Make DSO load along a path given through an environment variable
4162 (SHLIB_PATH) with shl_load().
4165 *) Constify the ENGINE code as a result of BIGNUM constification.
4166 Also constify the RSA code and most things related to it. In a
4167 few places, most notable in the depth of the ASN.1 code, ugly
4168 casts back to non-const were required (to be solved at a later
4172 *) Make it so the openssl application has all engines loaded by default.
4175 *) Constify the BIGNUM routines a little more.
4178 *) Add the following functions:
4180 ENGINE_load_cswift()
4182 ENGINE_load_atalla()
4184 ENGINE_load_builtin_engines()
4186 That way, an application can itself choose if external engines that
4187 are built-in in OpenSSL shall ever be used or not. The benefit is
4188 that applications won't have to be linked with libdl or other dso
4189 libraries unless it's really needed.
4191 Changed 'openssl engine' to load all engines on demand.
4192 Changed the engine header files to avoid the duplication of some
4193 declarations (they differed!).
4196 *) 'openssl engine' can now list capabilities.
4199 *) Better error reporting in 'openssl engine'.
4202 *) Never call load_dh_param(NULL) in s_server.
4205 *) Add engine application. It can currently list engines by name and
4206 identity, and test if they are actually available.
4209 *) Improve RPM specification file by forcing symbolic linking and making
4210 sure the installed documentation is also owned by root.root.
4211 [Damien Miller <djm@mindrot.org>]
4213 *) Give the OpenSSL applications more possibilities to make use of
4214 keys (public as well as private) handled by engines.
4217 *) Add OCSP code that comes from CertCo.
4220 *) Add VMS support for the Rijndael code.
4223 *) Added untested support for Nuron crypto accelerator.
4226 *) Add support for external cryptographic devices. This code was
4227 previously distributed separately as the "engine" branch.
4228 [Geoff Thorpe, Richard Levitte]
4230 *) Rework the filename-translation in the DSO code. It is now possible to
4231 have far greater control over how a "name" is turned into a filename
4232 depending on the operating environment and any oddities about the
4233 different shared library filenames on each system.
4236 *) Support threads on FreeBSD-elf in Configure.
4239 *) Fix for SHA1 assembly problem with MASM: it produces
4240 warnings about corrupt line number information when assembling
4241 with debugging information. This is caused by the overlapping
4243 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4246 NCONF_get_number() has no error checking at all. As a replacement,
4247 NCONF_get_number_e() is defined (_e for "error checking") and is
4248 promoted strongly. The old NCONF_get_number is kept around for
4249 binary backward compatibility.
4250 Make it possible for methods to load from something other than a BIO,
4251 by providing a function pointer that is given a name instead of a BIO.
4252 For example, this could be used to load configuration data from an
4256 *) Fix for non blocking accept BIOs. Added new I/O special reason
4257 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4258 with non blocking I/O was not possible because no retry code was
4259 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4263 *) Added the beginnings of Rijndael support.
4266 *) Fix for bug in DirectoryString mask setting. Add support for
4267 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4268 to allow certificate printing to more controllable, additional
4269 'certopt' option to 'x509' to allow new printing options to be
4273 *) Clean old EAY MD5 hack from e_os.h.
4276 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4278 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4279 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4280 [Joe Orton, Steve Henson]
4282 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4284 *) Fix additional bug revealed by the NISCC test suite:
4286 Stop bug triggering large recursion when presented with
4287 certain ASN.1 tags (CVE-2003-0851)
4290 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4292 *) Fix various bugs revealed by running the NISCC test suite:
4294 Stop out of bounds reads in the ASN1 code when presented with
4295 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4297 If verify callback ignores invalid public key errors don't try to check
4298 certificate signature with the NULL public key.
4302 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4303 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4307 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4308 extra data after the compression methods not only for TLS 1.0
4309 but also for SSL 3.0 (as required by the specification).
4310 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4312 *) Change X509_certificate_type() to mark the key as exported/exportable
4313 when it's 512 *bits* long, not 512 bytes.
4316 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4318 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4319 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4320 a protocol version number mismatch like a decryption error
4321 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4324 *) Turn on RSA blinding by default in the default implementation
4325 to avoid a timing attack. Applications that don't want it can call
4326 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4327 They would be ill-advised to do so in most cases.
4328 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4330 *) Change RSA blinding code so that it works when the PRNG is not
4331 seeded (in this case, the secret RSA exponent is abused as
4332 an unpredictable seed -- if it is not unpredictable, there
4333 is no point in blinding anyway). Make RSA blinding thread-safe
4334 by remembering the creator's thread ID in rsa->blinding and
4335 having all other threads use local one-time blinding factors
4336 (this requires more computation than sharing rsa->blinding, but
4337 avoids excessive locking; and if an RSA object is not shared
4338 between threads, blinding will still be very fast).
4341 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4343 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4344 via timing by performing a MAC computation even if incorrrect
4345 block cipher padding has been found. This is a countermeasure
4346 against active attacks where the attacker has to distinguish
4347 between bad padding and a MAC verification error. (CVE-2003-0078)
4349 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4350 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4351 Martin Vuagnoux (EPFL, Ilion)]
4353 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4355 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4356 memory from it's contents. This is done with a counter that will
4357 place alternating values in each byte. This can be used to solve
4358 two issues: 1) the removal of calls to memset() by highly optimizing
4359 compilers, and 2) cleansing with other values than 0, since those can
4360 be read through on certain media, for example a swap space on disk.
4363 *) Bugfix: client side session caching did not work with external caching,
4364 because the session->cipher setting was not restored when reloading
4365 from the external cache. This problem was masked, when
4366 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4367 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4370 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4371 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4372 [Zeev Lieber <zeev-l@yahoo.com>]
4374 *) Undo an undocumented change introduced in 0.9.6e which caused
4375 repeated calls to OpenSSL_add_all_ciphers() and
4376 OpenSSL_add_all_digests() to be ignored, even after calling
4380 *) Change the default configuration reader to deal with last line not
4381 being properly terminated.
4384 *) Change X509_NAME_cmp() so it applies the special rules on handling
4385 DN values that are of type PrintableString, as well as RDNs of type
4386 emailAddress where the value has the type ia5String.
4387 [stefank@valicert.com via Richard Levitte]
4389 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4390 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4391 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4392 the bitwise-OR of the two for use by the majority of applications
4393 wanting this behaviour, and update the docs. The documented
4394 behaviour and actual behaviour were inconsistent and had been
4395 changing anyway, so this is more a bug-fix than a behavioural
4397 [Geoff Thorpe, diagnosed by Nadav Har'El]
4399 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4400 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4403 *) Fix initialization code race conditions in
4404 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4405 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4406 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4407 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4408 ssl2_get_cipher_by_char(),
4409 ssl3_get_cipher_by_char().
4410 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4412 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4413 the cached sessions are flushed, as the remove_cb() might use ex_data
4414 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4415 (see [openssl.org #212]).
4416 [Geoff Thorpe, Lutz Jaenicke]
4418 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4419 length, instead of the encoding length to d2i_ASN1_OBJECT.
4422 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4424 *) [In 0.9.6g-engine release:]
4425 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4426 [Lynn Gazis <lgazis@rainbow.com>]
4428 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4430 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4431 and get fix the header length calculation.
4432 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4433 Alon Kantor <alonk@checkpoint.com> (and others),
4436 *) Use proper error handling instead of 'assertions' in buffer
4437 overflow checks added in 0.9.6e. This prevents DoS (the
4438 assertions could call abort()).
4439 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4441 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4443 *) Add various sanity checks to asn1_get_length() to reject
4444 the ASN1 length bytes if they exceed sizeof(long), will appear
4445 negative or the content length exceeds the length of the
4447 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4449 *) Fix cipher selection routines: ciphers without encryption had no flags
4450 for the cipher strength set and where therefore not handled correctly
4451 by the selection routines (PR #130).
4454 *) Fix EVP_dsa_sha macro.
4458 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4459 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4460 that was added in OpenSSL 0.9.6d.
4462 As the countermeasure turned out to be incompatible with some
4463 broken SSL implementations, the new option is part of SSL_OP_ALL.
4464 SSL_OP_ALL is usually employed when compatibility with weird SSL
4465 implementations is desired (e.g. '-bugs' option to 's_client' and
4466 's_server'), so the new option is automatically set in many
4470 *) Changes in security patch:
4472 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4473 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4474 Air Force Materiel Command, USAF, under agreement number
4477 *) Add various sanity checks to asn1_get_length() to reject
4478 the ASN1 length bytes if they exceed sizeof(long), will appear
4479 negative or the content length exceeds the length of the
4480 supplied buffer. (CVE-2002-0659)
4481 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4483 *) Assertions for various potential buffer overflows, not known to
4485 [Ben Laurie (CHATS)]
4487 *) Various temporary buffers to hold ASCII versions of integers were
4488 too small for 64 bit platforms. (CVE-2002-0655)
4489 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4491 *) Remote buffer overflow in SSL3 protocol - an attacker could
4492 supply an oversized session ID to a client. (CVE-2002-0656)
4493 [Ben Laurie (CHATS)]
4495 *) Remote buffer overflow in SSL2 protocol - an attacker could
4496 supply an oversized client master key. (CVE-2002-0656)
4497 [Ben Laurie (CHATS)]
4499 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4501 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4502 encoded as NULL) with id-dsa-with-sha1.
4503 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4505 *) Check various X509_...() return values in apps/req.c.
4506 [Nils Larsch <nla@trustcenter.de>]
4508 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4509 an end-of-file condition would erronously be flagged, when the CRLF
4510 was just at the end of a processed block. The bug was discovered when
4511 processing data through a buffering memory BIO handing the data to a
4512 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4513 <ptsekov@syntrex.com> and Nedelcho Stanev.
4516 *) Implement a countermeasure against a vulnerability recently found
4517 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4518 before application data chunks to avoid the use of known IVs
4519 with data potentially chosen by the attacker.
4522 *) Fix length checks in ssl3_get_client_hello().
4525 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4526 to prevent ssl3_read_internal() from incorrectly assuming that
4527 ssl3_read_bytes() found application data while handshake
4528 processing was enabled when in fact s->s3->in_read_app_data was
4529 merely automatically cleared during the initial handshake.
4530 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4532 *) Fix object definitions for Private and Enterprise: they were not
4533 recognized in their shortname (=lowercase) representation. Extend
4534 obj_dat.pl to issue an error when using undefined keywords instead
4535 of silently ignoring the problem (Svenning Sorensen
4536 <sss@sss.dnsalias.net>).
4539 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4540 generators, i.e. generators other than 2 and 5. (Previously, the
4541 code did not properly initialise the 'add' and 'rem' values to
4542 BN_generate_prime().)
4544 In the new general case, we do not insist that 'generator' is
4545 actually a primitive root: This requirement is rather pointless;
4546 a generator of the order-q subgroup is just as good, if not
4550 *) Map new X509 verification errors to alerts. Discovered and submitted by
4551 Tom Wu <tom@arcot.com>.
4554 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4555 returning non-zero before the data has been completely received
4556 when using non-blocking I/O.
4557 [Bodo Moeller; problem pointed out by John Hughes]
4559 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4560 [Ben Laurie, Lutz Jaenicke]
4562 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4563 Yoram Zahavi <YoramZ@gilian.com>).
4566 *) Add information about CygWin 1.3 and on, and preserve proper
4567 configuration for the versions before that.
4568 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4570 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4571 check whether we deal with a copy of a session and do not delete from
4572 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4573 <izhar@checkpoint.com>.
4576 *) Do not store session data into the internal session cache, if it
4577 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4578 flag is set). Proposed by Aslam <aslam@funk.com>.
4581 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4585 *) [In 0.9.6d-engine release:]
4586 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4587 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4589 *) Add the configuration target linux-s390x.
4590 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4592 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4593 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4594 variable as an indication that a ClientHello message has been
4595 received. As the flag value will be lost between multiple
4596 invocations of ssl3_accept when using non-blocking I/O, the
4597 function may not be aware that a handshake has actually taken
4598 place, thus preventing a new session from being added to the
4601 To avoid this problem, we now set s->new_session to 2 instead of
4602 using a local variable.
4603 [Lutz Jaenicke, Bodo Moeller]
4605 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4606 if the SSL_R_LENGTH_MISMATCH error is detected.
4607 [Geoff Thorpe, Bodo Moeller]
4609 *) New 'shared_ldflag' column in Configure platform table.
4612 *) Fix EVP_CIPHER_mode macro.
4613 ["Dan S. Camper" <dan@bti.net>]
4615 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4616 type, we must throw them away by setting rr->length to 0.
4617 [D P Chang <dpc@qualys.com>]
4619 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4621 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4622 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4623 worked incorrectly for those cases where range = 10..._2 and
4624 3*range is two bits longer than range.)
4627 *) Only add signing time to PKCS7 structures if it is not already
4631 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4632 OBJ_ld_ce should be OBJ_id_ce.
4633 Also some ip-pda OIDs in crypto/objects/objects.txt were
4634 incorrect (cf. RFC 3039).
4635 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4637 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4638 returns early because it has nothing to do.
4639 [Andy Schneider <andy.schneider@bjss.co.uk>]
4641 *) [In 0.9.6c-engine release:]
4642 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4643 [Andy Schneider <andy.schneider@bjss.co.uk>]
4645 *) [In 0.9.6c-engine release:]
4646 Add support for Cryptographic Appliance's keyserver technology.
4647 (Use engine 'keyclient')
4648 [Cryptographic Appliances and Geoff Thorpe]
4650 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4651 is called via tools/c89.sh because arguments have to be
4652 rearranged (all '-L' options must appear before the first object
4654 [Richard Shapiro <rshapiro@abinitio.com>]
4656 *) [In 0.9.6c-engine release:]
4657 Add support for Broadcom crypto accelerator cards, backported
4659 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4661 *) [In 0.9.6c-engine release:]
4662 Add support for SureWare crypto accelerator cards from
4663 Baltimore Technologies. (Use engine 'sureware')
4664 [Baltimore Technologies and Mark Cox]
4666 *) [In 0.9.6c-engine release:]
4667 Add support for crypto accelerator cards from Accelerated
4668 Encryption Processing, www.aep.ie. (Use engine 'aep')
4669 [AEP Inc. and Mark Cox]
4671 *) Add a configuration entry for gcc on UnixWare.
4672 [Gary Benson <gbenson@redhat.com>]
4674 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4675 messages are stored in a single piece (fixed-length part and
4676 variable-length part combined) and fix various bugs found on the way.
4679 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4680 instead. BIO_gethostbyname() does not know what timeouts are
4681 appropriate, so entries would stay in cache even when they have
4683 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4685 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4686 faced with a pathologically small ClientHello fragment that does
4687 not contain client_version: Instead of aborting with an error,
4688 simply choose the highest available protocol version (i.e.,
4689 TLS 1.0 unless it is disabled). In practice, ClientHello
4690 messages are never sent like this, but this change gives us
4691 strictly correct behaviour at least for TLS.
4694 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4695 never resets s->method to s->ctx->method when called from within
4696 one of the SSL handshake functions.
4697 [Bodo Moeller; problem pointed out by Niko Baric]
4699 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4700 (sent using the client's version number) if client_version is
4701 smaller than the protocol version in use. Also change
4702 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4703 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4704 the client will at least see that alert.
4707 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4711 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4712 client receives HelloRequest while in a handshake.
4713 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4715 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4716 should end in 'break', not 'goto end' which circuments various
4717 cleanups done in state SSL_ST_OK. But session related stuff
4718 must be disabled for SSL_ST_OK in the case that we just sent a
4721 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4722 before just sending a HelloRequest.
4723 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4725 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4726 reveal whether illegal block cipher padding was found or a MAC
4727 verification error occured. (Neither SSLerr() codes nor alerts
4728 are directly visible to potential attackers, but the information
4729 may leak via logfiles.)
4731 Similar changes are not required for the SSL 2.0 implementation
4732 because the number of padding bytes is sent in clear for SSL 2.0,
4733 and the extra bytes are just ignored. However ssl/s2_pkt.c
4734 failed to verify that the purported number of padding bytes is in
4738 *) Add OpenUNIX-8 support including shared libraries
4739 (Boyd Lynn Gerber <gerberb@zenez.com>).
4742 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4743 'wristwatch attack' using huge encoding parameters (cf.
4744 James H. Manger's CRYPTO 2001 paper). Note that the
4745 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4746 encoding parameters and hence was not vulnerable.
4749 *) BN_sqr() bug fix.
4750 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4752 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4753 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4754 followed by modular reduction.
4755 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4757 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4758 equivalent based on BN_pseudo_rand() instead of BN_rand().
4761 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4762 This function was broken, as the check for a new client hello message
4763 to handle SGC did not allow these large messages.
4764 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4767 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4770 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4771 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4774 *) Rework the configuration and shared library support for Tru64 Unix.
4775 The configuration part makes use of modern compiler features and
4776 still retains old compiler behavior for those that run older versions
4777 of the OS. The shared library support part includes a variant that
4778 uses the RPATH feature, and is available through the special
4779 configuration target "alpha-cc-rpath", which will never be selected
4781 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4783 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4784 with the same message size as in ssl3_get_certificate_request().
4785 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4786 messages might inadvertently be reject as too long.
4787 [Petr Lampa <lampa@fee.vutbr.cz>]
4789 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4792 *) Modified SSL library such that the verify_callback that has been set
4793 specificly for an SSL object with SSL_set_verify() is actually being
4794 used. Before the change, a verify_callback set with this function was
4795 ignored and the verify_callback() set in the SSL_CTX at the time of
4796 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4797 to allow the necessary settings.
4800 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4801 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4802 done automatically (in contradiction to the requirements of the C
4803 standard). This made problems when used from OpenSSH.
4806 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4807 dh->length and always used
4809 BN_rand_range(priv_key, dh->p).
4811 BN_rand_range() is not necessary for Diffie-Hellman, and this
4812 specific range makes Diffie-Hellman unnecessarily inefficient if
4813 dh->length (recommended exponent length) is much smaller than the
4814 length of dh->p. We could use BN_rand_range() if the order of
4815 the subgroup was stored in the DH structure, but we only have
4820 BN_rand(priv_key, l, ...)
4822 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4828 RSA_eay_public_encrypt
4829 RSA_eay_private_decrypt
4830 RSA_eay_private_encrypt (signing)
4831 RSA_eay_public_decrypt (signature verification)
4833 (default implementations for RSA_public_encrypt,
4834 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4835 always reject numbers >= n.
4838 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4839 to synchronize access to 'locking_thread'. This is necessary on
4840 systems where access to 'locking_thread' (an 'unsigned long'
4841 variable) is not atomic.
4844 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4845 *before* setting the 'crypto_lock_rand' flag. The previous code had
4846 a race condition if 0 is a valid thread ID.
4847 [Travis Vitek <vitek@roguewave.com>]
4849 *) Add support for shared libraries under Irix.
4850 [Albert Chin-A-Young <china@thewrittenword.com>]
4852 *) Add configuration option to build on Linux on both big-endian and
4854 [Ralf Baechle <ralf@uni-koblenz.de>]
4856 *) Add the possibility to create shared libraries on HP-UX.
4859 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4861 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4862 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4863 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4864 PRNG state recovery was possible based on the output of
4865 one PRNG request appropriately sized to gain knowledge on
4866 'md' followed by enough consecutive 1-byte PRNG requests
4867 to traverse all of 'state'.
4869 1. When updating 'md_local' (the current thread's copy of 'md')
4870 during PRNG output generation, hash all of the previous
4871 'md_local' value, not just the half used for PRNG output.
4873 2. Make the number of bytes from 'state' included into the hash
4874 independent from the number of PRNG bytes requested.
4876 The first measure alone would be sufficient to avoid
4877 Markku-Juhani's attack. (Actually it had never occurred
4878 to me that the half of 'md_local' used for chaining was the
4879 half from which PRNG output bytes were taken -- I had always
4880 assumed that the secret half would be used.) The second
4881 measure makes sure that additional data from 'state' is never
4882 mixed into 'md_local' in small portions; this heuristically
4883 further strengthens the PRNG.
4886 *) Fix crypto/bn/asm/mips3.s.
4889 *) When only the key is given to "enc", the IV is undefined. Print out
4890 an error message in this case.
4893 *) Handle special case when X509_NAME is empty in X509 printing routines.
4896 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4897 positive and less than q.
4900 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4901 used: it isn't thread safe and the add_lock_callback should handle
4903 [Paul Rose <Paul.Rose@bridge.com>]
4905 *) Verify that incoming data obeys the block size in
4906 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4910 [Ulf Möller, Bodo Möller]
4912 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4913 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4914 when fixing the server behaviour for backwards-compatible 'client
4915 hello' messages. (Note that the attack is impractical against
4916 SSL 3.0 and TLS 1.0 anyway because length and version checking
4917 means that the probability of guessing a valid ciphertext is
4918 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4921 Before 0.9.5, the countermeasure (hide the error by generating a
4922 random 'decryption result') did not work properly because
4923 ERR_clear_error() was missing, meaning that SSL_get_error() would
4924 detect the supposedly ignored error.
4926 Both problems are now fixed.
4929 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4930 (previously it was 1024).
4933 *) Fix for compatibility mode trust settings: ignore trust settings
4934 unless some valid trust or reject settings are present.
4937 *) Fix for blowfish EVP: its a variable length cipher.
4940 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4941 parameters in DSA public key structures and return an error in the
4942 DSA routines if parameters are absent.
4945 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4946 in the current directory if neither $RANDFILE nor $HOME was set.
4947 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4948 caused some confusion to Windows users who haven't defined $HOME.
4949 Thus RAND_file_name() is changed again: e_os.h can define a
4950 DEFAULT_HOME, which will be used if $HOME is not set.
4951 For Windows, we use "C:"; on other platforms, we still require
4952 environment variables.
4954 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4955 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4956 having multiple threads call RAND_poll() concurrently.
4959 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4960 combination of a flag and a thread ID variable.
4961 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4962 flag), *other* threads can enter ssleay_add_bytes without obeying
4963 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4964 that they do not hold after the first thread unsets add_do_not_lock).
4967 *) Change bctest again: '-x' expressions are not available in all
4971 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4973 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4974 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4976 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4977 the default extension for executables, if any. Also, make the perl
4978 scripts that use symlink() to test if it really exists and use "cp"
4979 if it doesn't. All this made OpenSSL compilable and installable in
4983 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4984 If SEQUENCE is length is indefinite just set c->slen to the total
4985 amount of data available.
4986 [Steve Henson, reported by shige@FreeBSD.org]
4987 [This change does not apply to 0.9.7.]
4989 *) Change bctest to avoid here-documents inside command substitution
4990 (workaround for FreeBSD /bin/sh bug).
4991 For compatibility with Ultrix, avoid shell functions (introduced
4992 in the bctest version that searches along $PATH).
4995 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4996 with des_encrypt() defined on some operating systems, like Solaris
5000 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5001 On the Importance of Eliminating Errors in Cryptographic
5002 Computations, J. Cryptology 14 (2001) 2, 101-119,
5003 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5006 *) MIPS assembler BIGNUM division bug fix.
5009 *) Disabled incorrect Alpha assembler code.
5012 *) Fix PKCS#7 decode routines so they correctly update the length
5013 after reading an EOC for the EXPLICIT tag.
5015 [This change does not apply to 0.9.7.]
5017 *) Fix bug in PKCS#12 key generation routines. This was triggered
5018 if a 3DES key was generated with a 0 initial byte. Include
5019 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5020 (but broken) behaviour.
5023 *) Enhance bctest to search for a working bc along $PATH and print
5025 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5027 *) Fix memory leaks in err.c: free err_data string if necessary;
5028 don't write to the wrong index in ERR_set_error_data.
5031 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5035 *) Replace rdtsc with _emit statements for VC++ version 5.
5036 [Jeremy Cooper <jeremy@baymoo.org>]
5038 *) Make it possible to reuse SSLv2 sessions.
5041 *) In copy_email() check for >= 0 as a return value for
5042 X509_NAME_get_index_by_NID() since 0 is a valid index.
5043 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5045 *) Avoid coredump with unsupported or invalid public keys by checking if
5046 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5047 PKCS7_verify() fails with non detached data.
5050 *) Don't use getenv in library functions when run as setuid/setgid.
5051 New function OPENSSL_issetugid().
5054 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5055 due to incorrect handling of multi-threading:
5057 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5059 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5061 3. Count how many times MemCheck_off() has been called so that
5062 nested use can be treated correctly. This also avoids
5063 inband-signalling in the previous code (which relied on the
5064 assumption that thread ID 0 is impossible).
5067 *) Add "-rand" option also to s_client and s_server.
5070 *) Fix CPU detection on Irix 6.x.
5071 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5072 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5074 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5077 [This change does not apply to 0.9.7.]
5079 *) Use the cached encoding of an X509_NAME structure rather than
5080 copying it. This is apparently the reason for the libsafe "errors"
5081 but the code is actually correct.
5084 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5085 Bleichenbacher's DSA attack.
5086 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5087 to be set and top=0 forces the highest bit to be set; top=-1 is new
5088 and leaves the highest bit random.
5089 [Ulf Moeller, Bodo Moeller]
5091 *) In the NCONF_...-based implementations for CONF_... queries
5092 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5093 a temporary CONF structure with the data component set to NULL
5094 (which gives segmentation faults in lh_retrieve).
5095 Instead, use NULL for the CONF pointer in CONF_get_string and
5096 CONF_get_number (which may use environment variables) and directly
5097 return NULL from CONF_get_section.
5100 *) Fix potential buffer overrun for EBCDIC.
5103 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5104 keyUsage if basicConstraints absent for a CA.
5107 *) Make SMIME_write_PKCS7() write mail header values with a format that
5108 is more generally accepted (no spaces before the semicolon), since
5109 some programs can't parse those values properly otherwise. Also make
5110 sure BIO's that break lines after each write do not create invalid
5114 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5115 macros previously used would not encode an empty SEQUENCE OF
5116 and break the signature.
5118 [This change does not apply to 0.9.7.]
5120 *) Zero the premaster secret after deriving the master secret in
5124 *) Add some EVP_add_digest_alias registrations (as found in
5125 OpenSSL_add_all_digests()) to SSL_library_init()
5126 aka OpenSSL_add_ssl_algorithms(). This provides improved
5127 compatibility with peers using X.509 certificates
5128 with unconventional AlgorithmIdentifier OIDs.
5131 *) Fix for Irix with NO_ASM.
5132 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5134 *) ./config script fixes.
5135 [Ulf Moeller, Richard Levitte]
5137 *) Fix 'openssl passwd -1'.
5140 *) Change PKCS12_key_gen_asc() so it can cope with non null
5141 terminated strings whose length is passed in the passlen
5142 parameter, for example from PEM callbacks. This was done
5143 by adding an extra length parameter to asc2uni().
5144 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5146 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5147 call failed, free the DSA structure.
5150 *) Fix to uni2asc() to cope with zero length Unicode strings.
5151 These are present in some PKCS#12 files.
5154 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5155 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5156 when writing a 32767 byte record.
5157 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5159 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5160 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5162 (RSA objects have a reference count access to which is protected
5163 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5164 so they are meant to be shared between threads.)
5165 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5166 "Reddie, Steven" <Steven.Reddie@ca.com>]
5168 *) Fix a deadlock in CRYPTO_mem_leaks().
5171 *) Use better test patterns in bntest.
5174 *) rand_win.c fix for Borland C.
5177 *) BN_rshift bugfix for n == 0.
5180 *) Add a 'bctest' script that checks for some known 'bc' bugs
5181 so that 'make test' does not abort just because 'bc' is broken.
5184 *) Store verify_result within SSL_SESSION also for client side to
5185 avoid potential security hole. (Re-used sessions on the client side
5186 always resulted in verify_result==X509_V_OK, not using the original
5187 result of the server certificate verification.)
5190 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5191 SSL3_RT_APPLICATION_DATA, return 0.
5192 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5196 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5197 releases, have been re-implemented by renaming the previous
5198 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5199 and ssl3_read_internal, respectively, and adding 'peek' parameters
5200 to them. The new ssl[23]_{read,peek} functions are calls to
5201 ssl[23]_read_internal with the 'peek' flag set appropriately.
5202 A 'peek' parameter has also been added to ssl3_read_bytes, which
5203 does the actual work for ssl3_read_internal.
5206 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5207 the method-specific "init()" handler. Also clean up ex_data after
5208 calling the method-specific "finish()" handler. Previously, this was
5209 happening the other way round.
5212 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5213 The previous value, 12, was not always sufficient for BN_mod_exp().
5216 *) Make sure that shared libraries get the internal name engine with
5217 the full version number and not just 0. This should mark the
5218 shared libraries as not backward compatible. Of course, this should
5219 be changed again when we can guarantee backward binary compatibility.
5222 *) Fix typo in get_cert_by_subject() in by_dir.c
5223 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5225 *) Rework the system to generate shared libraries:
5227 - Make note of the expected extension for the shared libraries and
5228 if there is a need for symbolic links from for example libcrypto.so.0
5229 to libcrypto.so.0.9.7. There is extended info in Configure for
5232 - Make as few rebuilds of the shared libraries as possible.
5234 - Still avoid linking the OpenSSL programs with the shared libraries.
5236 - When installing, install the shared libraries separately from the
5240 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5242 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5243 and not in SSL_clear because the latter is also used by the
5244 accept/connect functions; previously, the settings made by
5245 SSL_set_read_ahead would be lost during the handshake.
5246 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5248 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5249 Previously, it would create entries for disableed algorithms no
5253 *) Added several new manual pages for SSL_* function.
5256 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5258 *) In ssl23_get_client_hello, generate an error message when faced
5259 with an initial SSL 3.0/TLS record that is too small to contain the
5260 first two bytes of the ClientHello message, i.e. client_version.
5261 (Note that this is a pathologic case that probably has never happened
5262 in real life.) The previous approach was to use the version number
5263 from the record header as a substitute; but our protocol choice
5264 should not depend on that one because it is not authenticated
5265 by the Finished messages.
5268 *) More robust randomness gathering functions for Windows.
5269 [Jeffrey Altman <jaltman@columbia.edu>]
5271 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5272 not set then we don't setup the error code for issuer check errors
5273 to avoid possibly overwriting other errors which the callback does
5274 handle. If an application does set the flag then we assume it knows
5275 what it is doing and can handle the new informational codes
5279 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5280 a general "ANY" type, as such it should be able to decode anything
5281 including tagged types. However it didn't check the class so it would
5282 wrongly interpret tagged types in the same way as their universal
5283 counterpart and unknown types were just rejected. Changed so that the
5284 tagged and unknown types are handled in the same way as a SEQUENCE:
5285 that is the encoding is stored intact. There is also a new type
5286 "V_ASN1_OTHER" which is used when the class is not universal, in this
5287 case we have no idea what the actual type is so we just lump them all
5291 *) On VMS, stdout may very well lead to a file that is written to
5292 in a record-oriented fashion. That means that every write() will
5293 write a separate record, which will be read separately by the
5294 programs trying to read from it. This can be very confusing.
5296 The solution is to put a BIO filter in the way that will buffer
5297 text until a linefeed is reached, and then write everything a
5298 line at a time, so every record written will be an actual line,
5299 not chunks of lines and not (usually doesn't happen, but I've
5300 seen it once) several lines in one record. BIO_f_linebuffer() is
5303 Currently, it's a VMS-only method, because that's where it has
5304 been tested well enough.
5307 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5308 it can return incorrect results.
5309 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5310 but it was in 0.9.6-beta[12].)
5313 *) Disable the check for content being present when verifying detached
5314 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5315 include zero length content when signing messages.
5318 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5319 BIO_ctrl (for BIO pairs).
5322 *) Add DSO method for VMS.
5325 *) Bug fix: Montgomery multiplication could produce results with the
5329 *) Add RPM specification openssl.spec and modify it to build three
5330 packages. The default package contains applications, application
5331 documentation and run-time libraries. The devel package contains
5332 include files, static libraries and function documentation. The
5333 doc package contains the contents of the doc directory. The original
5334 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5337 *) Add a large number of documentation files for many SSL routines.
5338 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5340 *) Add a configuration entry for Sony News 4.
5341 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5343 *) Don't set the two most significant bits to one when generating a
5344 random number < q in the DSA library.
5347 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5348 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5349 the underlying transport is blocking) if a handshake took place.
5350 (The default behaviour is needed by applications such as s_client
5351 and s_server that use select() to determine when to use SSL_read;
5352 but for applications that know in advance when to expect data, it
5353 just makes things more complicated.)
5356 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5360 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5361 work better on such systems.
5362 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5364 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5365 Update PKCS12_parse() so it copies the friendlyName and the
5366 keyid to the certificates aux info.
5369 *) Fix bug in PKCS7_verify() which caused an infinite loop
5370 if there was more than one signature.
5371 [Sven Uszpelkat <su@celocom.de>]
5373 *) Major change in util/mkdef.pl to include extra information
5374 about each symbol, as well as presentig variables as well
5375 as functions. This change means that there's n more need
5376 to rebuild the .num files when some algorithms are excluded.
5379 *) Allow the verify time to be set by an application,
5380 rather than always using the current time.
5383 *) Phase 2 verify code reorganisation. The certificate
5384 verify code now looks up an issuer certificate by a
5385 number of criteria: subject name, authority key id
5386 and key usage. It also verifies self signed certificates
5387 by the same criteria. The main comparison function is
5388 X509_check_issued() which performs these checks.
5390 Lot of changes were necessary in order to support this
5391 without completely rewriting the lookup code.
5393 Authority and subject key identifier are now cached.
5395 The LHASH 'certs' is X509_STORE has now been replaced
5396 by a STACK_OF(X509_OBJECT). This is mainly because an
5397 LHASH can't store or retrieve multiple objects with
5398 the same hash value.
5400 As a result various functions (which were all internal
5401 use only) have changed to handle the new X509_STORE
5402 structure. This will break anything that messed round
5403 with X509_STORE internally.
5405 The functions X509_STORE_add_cert() now checks for an
5406 exact match, rather than just subject name.
5408 The X509_STORE API doesn't directly support the retrieval
5409 of multiple certificates matching a given criteria, however
5410 this can be worked round by performing a lookup first
5411 (which will fill the cache with candidate certificates)
5412 and then examining the cache for matches. This is probably
5413 the best we can do without throwing out X509_LOOKUP
5414 entirely (maybe later...).
5416 The X509_VERIFY_CTX structure has been enhanced considerably.
5418 All certificate lookup operations now go via a get_issuer()
5419 callback. Although this currently uses an X509_STORE it
5420 can be replaced by custom lookups. This is a simple way
5421 to bypass the X509_STORE hackery necessary to make this
5422 work and makes it possible to use more efficient techniques
5423 in future. A very simple version which uses a simple
5424 STACK for its trusted certificate store is also provided
5425 using X509_STORE_CTX_trusted_stack().
5427 The verify_cb() and verify() callbacks now have equivalents
5428 in the X509_STORE_CTX structure.
5430 X509_STORE_CTX also has a 'flags' field which can be used
5431 to customise the verify behaviour.
5434 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5435 excludes S/MIME capabilities.
5438 *) When a certificate request is read in keep a copy of the
5439 original encoding of the signed data and use it when outputing
5440 again. Signatures then use the original encoding rather than
5441 a decoded, encoded version which may cause problems if the
5442 request is improperly encoded.
5445 *) For consistency with other BIO_puts implementations, call
5446 buffer_write(b, ...) directly in buffer_puts instead of calling
5449 In BIO_puts, increment b->num_write as in BIO_write.
5450 [Peter.Sylvester@EdelWeb.fr]
5452 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5453 BN_zero, we may not return a BIGNUM with an array consisting of
5457 *) Avoid calling abort() from within the library when problems are
5458 detected, except if preprocessor symbols have been defined
5459 (such as REF_CHECK, BN_DEBUG etc.).
5462 *) New openssl application 'rsautl'. This utility can be
5463 used for low level RSA operations. DER public key
5464 BIO/fp routines also added.
5467 *) New Configure entry and patches for compiling on QNX 4.
5468 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5470 *) A demo state-machine implementation was sponsored by
5471 Nuron (http://www.nuron.com/) and is now available in
5472 demos/state_machine.
5475 *) New options added to the 'dgst' utility for signature
5476 generation and verification.
5479 *) Unrecognized PKCS#7 content types are now handled via a
5480 catch all ASN1_TYPE structure. This allows unsupported
5481 types to be stored as a "blob" and an application can
5482 encode and decode it manually.
5485 *) Fix various signed/unsigned issues to make a_strex.c
5487 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5489 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5490 length if passed a buffer. ASN1_INTEGER_to_BN failed
5491 if passed a NULL BN and its argument was negative.
5492 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5494 *) Modification to PKCS#7 encoding routines to output definite
5495 length encoding. Since currently the whole structures are in
5496 memory there's not real point in using indefinite length
5497 constructed encoding. However if OpenSSL is compiled with
5498 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5501 *) Added BIO_vprintf() and BIO_vsnprintf().
5504 *) Added more prefixes to parse for in the the strings written
5505 through a logging bio, to cover all the levels that are available
5506 through syslog. The prefixes are now:
5508 PANIC, EMERG, EMR => LOG_EMERG
5509 ALERT, ALR => LOG_ALERT
5510 CRIT, CRI => LOG_CRIT
5511 ERROR, ERR => LOG_ERR
5512 WARNING, WARN, WAR => LOG_WARNING
5513 NOTICE, NOTE, NOT => LOG_NOTICE
5514 INFO, INF => LOG_INFO
5515 DEBUG, DBG => LOG_DEBUG
5517 and as before, if none of those prefixes are present at the
5518 beginning of the string, LOG_ERR is chosen.
5520 On Win32, the LOG_* levels are mapped according to this:
5522 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5523 LOG_WARNING => EVENTLOG_WARNING_TYPE
5524 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5528 *) Made it possible to reconfigure with just the configuration
5529 argument "reconf" or "reconfigure". The command line arguments
5530 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5531 and are retrieved from there when reconfiguring.
5535 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5537 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5540 *) The obj_dat.pl script was messing up the sorting of object
5541 names. The reason was that it compared the quoted version
5542 of strings as a result "OCSP" > "OCSP Signing" because
5543 " > SPACE. Changed script to store unquoted versions of
5544 names and add quotes on output. It was also omitting some
5545 names from the lookup table if they were given a default
5546 value (that is if SN is missing it is given the same
5547 value as LN and vice versa), these are now added on the
5548 grounds that if an object has a name we should be able to
5549 look it up. Finally added warning output when duplicate
5550 short or long names are found.
5553 *) Changes needed for Tandem NSK.
5554 [Scott Uroff <scott@xypro.com>]
5556 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5557 RSA_padding_check_SSLv23(), special padding was never detected
5558 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5559 version rollback attacks was not effective.
5561 In s23_clnt.c, don't use special rollback-attack detection padding
5562 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5563 client; similarly, in s23_srvr.c, don't do the rollback check if
5564 SSL 2.0 is the only protocol enabled in the server.
5567 *) Make it possible to get hexdumps of unprintable data with 'openssl
5568 asn1parse'. By implication, the functions ASN1_parse_dump() and
5569 BIO_dump_indent() are added.
5572 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5573 these print out strings and name structures based on various
5574 flags including RFC2253 support and proper handling of
5575 multibyte characters. Added options to the 'x509' utility
5576 to allow the various flags to be set.
5579 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5580 Also change the functions X509_cmp_current_time() and
5581 X509_gmtime_adj() work with an ASN1_TIME structure,
5582 this will enable certificates using GeneralizedTime in validity
5583 dates to be checked.
5586 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5587 negative public key encodings) on by default,
5588 NO_NEG_PUBKEY_BUG can be set to disable it.
5591 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5592 content octets. An i2c_ASN1_OBJECT is unnecessary because
5593 the encoding can be trivially obtained from the structure.
5596 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5597 not read locks (CRYPTO_r_[un]lock).
5600 *) A first attempt at creating official support for shared
5601 libraries through configuration. I've kept it so the
5602 default is static libraries only, and the OpenSSL programs
5603 are always statically linked for now, but there are
5604 preparations for dynamic linking in place.
5605 This has been tested on Linux and Tru64.
5608 *) Randomness polling function for Win9x, as described in:
5609 Peter Gutmann, Software Generation of Practically Strong
5613 *) Fix so PRNG is seeded in req if using an already existing
5617 *) New options to smime application. -inform and -outform
5618 allow alternative formats for the S/MIME message including
5619 PEM and DER. The -content option allows the content to be
5620 specified separately. This should allow things like Netscape
5621 form signing output easier to verify.
5624 *) Fix the ASN1 encoding of tags using the 'long form'.
5627 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5628 STRING types. These convert content octets to and from the
5629 underlying type. The actual tag and length octets are
5630 already assumed to have been read in and checked. These
5631 are needed because all other string types have virtually
5632 identical handling apart from the tag. By having versions
5633 of the ASN1 functions that just operate on content octets
5634 IMPLICIT tagging can be handled properly. It also allows
5635 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5636 and ASN1_INTEGER are identical apart from the tag.
5639 *) Change the handling of OID objects as follows:
5641 - New object identifiers are inserted in objects.txt, following
5642 the syntax given in objects.README.
5643 - objects.pl is used to process obj_mac.num and create a new
5645 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5648 This is currently kind of a hack, and the perl code in objects.pl
5649 isn't very elegant, but it works as I intended. The simplest way
5650 to check that it worked correctly is to look in obj_dat.h and
5651 check the array nid_objs and make sure the objects haven't moved
5652 around (this is important!). Additions are OK, as well as
5653 consistent name changes.
5656 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5659 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5660 The given file adds to whatever has already been seeded into the
5661 random pool through the RANDFILE configuration file option or
5662 environment variable, or the default random state file.
5665 *) mkstack.pl now sorts each macro group into lexical order.
5666 Previously the output order depended on the order the files
5667 appeared in the directory, resulting in needless rewriting
5671 *) Patches to make OpenSSL compile under Win32 again. Mostly
5672 work arounds for the VC++ problem that it treats func() as
5673 func(void). Also stripped out the parts of mkdef.pl that
5674 added extra typesafe functions: these no longer exist.
5677 *) Reorganisation of the stack code. The macros are now all
5678 collected in safestack.h . Each macro is defined in terms of
5679 a "stack macro" of the form SKM_<name>(type, a, b). The
5680 DEBUG_SAFESTACK is now handled in terms of function casts,
5681 this has the advantage of retaining type safety without the
5682 use of additional functions. If DEBUG_SAFESTACK is not defined
5683 then the non typesafe macros are used instead. Also modified the
5684 mkstack.pl script to handle the new form. Needs testing to see
5685 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5686 the default if no major problems. Similar behaviour for ASN1_SET_OF
5687 and PKCS12_STACK_OF.
5690 *) When some versions of IIS use the 'NET' form of private key the
5691 key derivation algorithm is different. Normally MD5(password) is
5692 used as a 128 bit RC4 key. In the modified case
5693 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5694 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5695 as the old Netscape_RSA functions except they have an additional
5696 'sgckey' parameter which uses the modified algorithm. Also added
5697 an -sgckey command line option to the rsa utility. Thanks to
5698 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5699 algorithm to openssl-dev.
5702 *) The evp_local.h macros were using 'c.##kname' which resulted in
5703 invalid expansion on some systems (SCO 5.0.5 for example).
5704 Corrected to 'c.kname'.
5705 [Phillip Porch <root@theporch.com>]
5707 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5708 a STACK of email addresses from a certificate or request, these look
5709 in the subject name and the subject alternative name extensions and
5710 omit any duplicate addresses.
5713 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5714 This makes DSA verification about 2 % faster.
5717 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5718 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5719 plus overhead for 1024 bit moduli).
5720 This makes exponentiations about 0.5 % faster for 1024 bit
5721 exponents (as measured by "openssl speed rsa2048").
5724 *) Rename memory handling macros to avoid conflicts with other
5726 Malloc => OPENSSL_malloc
5727 Malloc_locked => OPENSSL_malloc_locked
5728 Realloc => OPENSSL_realloc
5729 Free => OPENSSL_free
5732 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5733 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5736 *) CygWin32 support.
5737 [John Jarvie <jjarvie@newsguy.com>]
5739 *) The type-safe stack code has been rejigged. It is now only compiled
5740 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5741 by default all type-specific stack functions are "#define"d back to
5742 standard stack functions. This results in more streamlined output
5743 but retains the type-safety checking possibilities of the original
5747 *) The STACK code has been cleaned up, and certain type declarations
5748 that didn't make a lot of sense have been brought in line. This has
5749 also involved a cleanup of sorts in safestack.h to more correctly
5750 map type-safe stack functions onto their plain stack counterparts.
5751 This work has also resulted in a variety of "const"ifications of
5752 lots of the code, especially "_cmp" operations which should normally
5753 be prototyped with "const" parameters anyway.
5756 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5757 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5758 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5759 where all of 'md' is used each time the PRNG is used, but 'state'
5760 is used only indexed by a cyclic counter. As entropy may not be
5761 well distributed from the beginning, 'md' is important as a
5762 chaining variable. However, the output function chains only half
5763 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5764 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5765 in all of 'state' being rewritten, with the new values depending
5766 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5769 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5770 the handshake is continued after ssl_verify_cert_chain();
5771 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5772 can lead to 'unexplainable' connection aborts later.
5773 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5775 *) Major EVP API cipher revision.
5776 Add hooks for extra EVP features. This allows various cipher
5777 parameters to be set in the EVP interface. Support added for variable
5778 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5779 setting of RC2 and RC5 parameters.
5781 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5784 Remove lots of duplicated code from the EVP library. For example *every*
5785 cipher init() function handles the 'iv' in the same way according to the
5786 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5787 for CFB and OFB modes they zero ctx->num.
5789 New functionality allows removal of S/MIME code RC2 hack.
5791 Most of the routines have the same form and so can be declared in terms
5794 By shifting this to the top level EVP_CipherInit() it can be removed from
5795 all individual ciphers. If the cipher wants to handle IVs or keys
5796 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5799 Change lots of functions like EVP_EncryptUpdate() to now return a
5800 value: although software versions of the algorithms cannot fail
5801 any installed hardware versions can.
5804 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5805 this option is set, tolerate broken clients that send the negotiated
5806 protocol version number instead of the requested protocol version
5810 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5811 i.e. non-zero for export ciphersuites, zero otherwise.
5812 Previous versions had this flag inverted, inconsistent with
5813 rsa_tmp_cb (..._TMP_RSA_CB).
5814 [Bodo Moeller; problem reported by Amit Chopra]
5816 *) Add missing DSA library text string. Work around for some IIS
5817 key files with invalid SEQUENCE encoding.
5820 *) Add a document (doc/standards.txt) that list all kinds of standards
5821 and so on that are implemented in OpenSSL.
5824 *) Enhance c_rehash script. Old version would mishandle certificates
5825 with the same subject name hash and wouldn't handle CRLs at all.
5826 Added -fingerprint option to crl utility, to support new c_rehash
5830 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5833 *) Fix for SSL server purpose checking. Server checking was
5834 rejecting certificates which had extended key usage present
5835 but no ssl client purpose.
5836 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5838 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5839 is a little unclear about how a blank password is handled.
5840 Since the password in encoded as a BMPString with terminating
5841 double NULL a zero length password would end up as just the
5842 double NULL. However no password at all is different and is
5843 handled differently in the PKCS#12 key generation code. NS
5844 treats a blank password as zero length. MSIE treats it as no
5845 password on export: but it will try both on import. We now do
5846 the same: PKCS12_parse() tries zero length and no password if
5847 the password is set to "" or NULL (NULL is now a valid password:
5848 it wasn't before) as does the pkcs12 application.
5851 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5852 perror when PEM_read_bio_X509_REQ fails, the error message must
5853 be obtained from the error queue.
5856 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5857 it in ERR_remove_state if appropriate, and change ERR_get_state
5858 accordingly to avoid race conditions (this is necessary because
5859 thread_hash is no longer constant once set).
5862 *) Bugfix for linux-elf makefile.one.
5865 *) RSA_get_default_method() will now cause a default
5866 RSA_METHOD to be chosen if one doesn't exist already.
5867 Previously this was only set during a call to RSA_new()
5868 or RSA_new_method(NULL) meaning it was possible for
5869 RSA_get_default_method() to return NULL.
5872 *) Added native name translation to the existing DSO code
5873 that will convert (if the flag to do so is set) filenames
5874 that are sufficiently small and have no path information
5875 into a canonical native form. Eg. "blah" converted to
5876 "libblah.so" or "blah.dll" etc.
5879 *) New function ERR_error_string_n(e, buf, len) which is like
5880 ERR_error_string(e, buf), but writes at most 'len' bytes
5881 including the 0 terminator. For ERR_error_string_n, 'buf'
5883 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5885 *) CONF library reworked to become more general. A new CONF
5886 configuration file reader "class" is implemented as well as a
5887 new functions (NCONF_*, for "New CONF") to handle it. The now
5888 old CONF_* functions are still there, but are reimplemented to
5889 work in terms of the new functions. Also, a set of functions
5890 to handle the internal storage of the configuration data is
5891 provided to make it easier to write new configuration file
5892 reader "classes" (I can definitely see something reading a
5893 configuration file in XML format, for example), called _CONF_*,
5894 or "the configuration storage API"...
5896 The new configuration file reading functions are:
5898 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5899 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5901 NCONF_default, NCONF_WIN32
5903 NCONF_dump_fp, NCONF_dump_bio
5905 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5906 NCONF_new creates a new CONF object. This works in the same way
5907 as other interfaces in OpenSSL, like the BIO interface.
5908 NCONF_dump_* dump the internal storage of the configuration file,
5909 which is useful for debugging. All other functions take the same
5910 arguments as the old CONF_* functions wth the exception of the
5911 first that must be a `CONF *' instead of a `LHASH *'.
5913 To make it easer to use the new classes with the old CONF_* functions,
5914 the function CONF_set_default_method is provided.
5917 *) Add '-tls1' option to 'openssl ciphers', which was already
5918 mentioned in the documentation but had not been implemented.
5919 (This option is not yet really useful because even the additional
5920 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5923 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5924 OpenSSL-based applications) load shared libraries and bind to
5925 them in a portable way.
5926 [Geoff Thorpe, with contributions from Richard Levitte]
5928 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5930 *) Make sure _lrotl and _lrotr are only used with MSVC.
5932 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5933 (the default implementation of RAND_status).
5935 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5936 to '-clrext' (= clear extensions), as intended and documented.
5937 [Bodo Moeller; inconsistency pointed out by Michael Attili
5940 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5941 was larger than the MD block size.
5942 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5944 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5945 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5946 using the passed key: if the passed key was a private key the result
5947 of X509_print(), for example, would be to print out all the private key
5951 *) des_quad_cksum() byte order bug fix.
5952 [Ulf Möller, using the problem description in krb4-0.9.7, where
5953 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5955 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5957 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5959 *) For easily testing in shell scripts whether some command
5960 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5961 returns with exit code 0 iff no command of the given name is available.
5962 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5963 the output goes to stdout and nothing is printed to stderr.
5964 Additional arguments are always ignored.
5966 Since for each cipher there is a command of the same name,
5967 the 'no-cipher' compilation switches can be tested this way.
5969 ('openssl no-XXX' is not able to detect pseudo-commands such
5970 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5973 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5976 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5977 is set; it will be thrown away anyway because each handshake creates
5979 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5980 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5981 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5982 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5985 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5986 'Q' and 'R' lose their special meanings (quit/renegotiate).
5987 This is part of what -quiet does; unlike -quiet, -ign_eof
5988 does not suppress any output.
5991 *) Add compatibility options to the purpose and trust code. The
5992 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5993 accepts a certificate or CA, this was the previous behaviour,
5994 with all the associated security issues.
5996 X509_TRUST_COMPAT is the old trust behaviour: only and
5997 automatically trust self signed roots in certificate store. A
5998 new trust setting X509_TRUST_DEFAULT is used to specify that
5999 a purpose has no associated trust setting and it should instead
6000 use the value in the default purpose.
6003 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6004 and fix a memory leak.
6007 *) In util/mkerr.pl (which implements 'make errors'), preserve
6008 reason strings from the previous version of the .c file, as
6009 the default to have only downcase letters (and digits) in
6010 automatically generated reasons codes is not always appropriate.
6013 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6014 using strerror. Previously, ERR_reason_error_string() returned
6015 library names as reason strings for SYSerr; but SYSerr is a special
6016 case where small numbers are errno values, not library numbers.
6019 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6020 converts DSA parameters into DH parameters. (When creating parameters,
6021 DSA_generate_parameters is used.)
6024 *) Include 'length' (recommended exponent length) in C code generated
6025 by 'openssl dhparam -C'.
6028 *) The second argument to set_label in perlasm was already being used
6029 so couldn't be used as a "file scope" flag. Moved to third argument
6033 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6034 instead of RAND_bytes for encryption IVs and salts.
6037 *) Include RAND_status() into RAND_METHOD instead of implementing
6038 it only for md_rand.c Otherwise replacing the PRNG by calling
6039 RAND_set_rand_method would be impossible.
6042 *) Don't let DSA_generate_key() enter an infinite loop if the random
6043 number generation fails.
6046 *) New 'rand' application for creating pseudo-random output.
6049 *) Added configuration support for Linux/IA64
6050 [Rolf Haberrecker <rolf@suse.de>]
6052 *) Assembler module support for Mingw32.
6055 *) Shared library support for HPUX (in shlib/).
6056 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6058 *) Shared library support for Solaris gcc.
6059 [Lutz Behnke <behnke@trustcenter.de>]
6061 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6063 *) PKCS7_encrypt() was adding text MIME headers twice because they
6064 were added manually and by SMIME_crlf_copy().
6067 *) In bntest.c don't call BN_rand with zero bits argument.
6068 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6070 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6071 case was implemented. This caused BN_div_recp() to fail occasionally.
6074 *) Add an optional second argument to the set_label() in the perl
6075 assembly language builder. If this argument exists and is set
6076 to 1 it signals that the assembler should use a symbol whose
6077 scope is the entire file, not just the current function. This
6078 is needed with MASM which uses the format label:: for this scope.
6079 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6081 *) Change the ASN1 types so they are typedefs by default. Before
6082 almost all types were #define'd to ASN1_STRING which was causing
6083 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6087 *) Change names of new functions to the new get1/get0 naming
6088 convention: After 'get1', the caller owns a reference count
6089 and has to call ..._free; 'get0' returns a pointer to some
6090 data structure without incrementing reference counters.
6091 (Some of the existing 'get' functions increment a reference
6092 counter, some don't.)
6093 Similarly, 'set1' and 'add1' functions increase reference
6094 counters or duplicate objects.
6097 *) Allow for the possibility of temp RSA key generation failure:
6098 the code used to assume it always worked and crashed on failure.
6101 *) Fix potential buffer overrun problem in BIO_printf().
6102 [Ulf Möller, using public domain code by Patrick Powell; problem
6103 pointed out by David Sacerdote <das33@cornell.edu>]
6105 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6106 RAND_egd() and RAND_status(). In the command line application,
6107 the EGD socket can be specified like a seed file using RANDFILE
6111 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6112 Some CAs (e.g. Verisign) distribute certificates in this form.
6115 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6116 list to exclude them. This means that no special compilation option
6117 is needed to use anonymous DH: it just needs to be included in the
6121 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6122 EVP_MD_type. The old functionality is available in a new macro called
6123 EVP_MD_md(). Change code that uses it and update docs.
6126 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6127 where the 'void *' argument is replaced by a function pointer argument.
6128 Previously 'void *' was abused to point to functions, which works on
6129 many platforms, but is not correct. As these functions are usually
6130 called by macros defined in OpenSSL header files, most source code
6131 should work without changes.
6134 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6135 sections with information on -D... compiler switches used for
6136 compiling the library so that applications can see them. To enable
6137 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6138 must be defined. E.g.,
6139 #define OPENSSL_ALGORITHM_DEFINES
6140 #include <openssl/opensslconf.h>
6141 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6142 [Richard Levitte, Ulf and Bodo Möller]
6144 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6148 *) Change the 'other' type in certificate aux info to a STACK_OF
6149 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6150 the required ASN1 format: arbitrary types determined by an OID.
6153 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6154 argument to 'req'. This is not because the function is newer or
6155 better than others it just uses the work 'NEW' in the certificate
6156 request header lines. Some software needs this.
6159 *) Reorganise password command line arguments: now passwords can be
6160 obtained from various sources. Delete the PEM_cb function and make
6161 it the default behaviour: i.e. if the callback is NULL and the
6162 usrdata argument is not NULL interpret it as a null terminated pass
6163 phrase. If usrdata and the callback are NULL then the pass phrase
6164 is prompted for as usual.
6167 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6168 the support is automatically enabled. The resulting binaries will
6169 autodetect the card and use it if present.
6170 [Ben Laurie and Compaq Inc.]
6172 *) Work around for Netscape hang bug. This sends certificate request
6173 and server done in one record. Since this is perfectly legal in the
6174 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6175 the bugs/SSLv3 entry for more info.
6178 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6181 *) Add -rand argument to smime and pkcs12 applications and read/write
6185 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6188 *) Add command line password options to the remaining applications.
6191 *) Bug fix for BN_div_recp() for numerators with an even number of
6195 *) More tests in bntest.c, and changed test_bn output.
6198 *) ./config recognizes MacOS X now.
6201 *) Bug fix for BN_div() when the first words of num and divsor are
6202 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6205 *) Add support for various broken PKCS#8 formats, and command line
6206 options to produce them.
6209 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6210 get temporary BIGNUMs from a BN_CTX.
6213 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6217 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6218 include a #define from the old name to the new. The original intent
6219 was that statically linked binaries could for example just call
6220 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6221 link with digests. This never worked becayse SSLeay_add_all_digests()
6222 and SSLeay_add_all_ciphers() were in the same source file so calling
6223 one would link with the other. They are now in separate source files.
6226 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6229 *) Use a less unusual form of the Miller-Rabin primality test (it used
6230 a binary algorithm for exponentiation integrated into the Miller-Rabin
6231 loop, our standard modexp algorithms are faster).
6234 *) Support for the EBCDIC character set completed.
6235 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6237 *) Source code cleanups: use const where appropriate, eliminate casts,
6238 use void * instead of char * in lhash.
6241 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6242 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6243 this the server could overwrite ephemeral keys that the client
6247 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6248 using 50 iterations of the Rabin-Miller test.
6250 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6251 iterations of the Rabin-Miller test as required by the appendix
6252 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6253 As BN_is_prime_fasttest includes trial division, DSA parameter
6254 generation becomes much faster.
6256 This implies a change for the callback functions in DSA_is_prime
6257 and DSA_generate_parameters: The callback function is called once
6258 for each positive witness in the Rabin-Miller test, not just
6259 occasionally in the inner loop; and the parameters to the
6260 callback function now provide an iteration count for the outer
6261 loop rather than for the current invocation of the inner loop.
6262 DSA_generate_parameters additionally can call the callback
6263 function with an 'iteration count' of -1, meaning that a
6264 candidate has passed the trial division test (when q is generated
6265 from an application-provided seed, trial division is skipped).
6268 *) New function BN_is_prime_fasttest that optionally does trial
6269 division before starting the Rabin-Miller test and has
6270 an additional BN_CTX * argument (whereas BN_is_prime always
6271 has to allocate at least one BN_CTX).
6272 'callback(1, -1, cb_arg)' is called when a number has passed the
6273 trial division stage.
6276 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6280 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6283 *) New function BN_pseudo_rand().
6286 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6287 bignum version of BN_from_montgomery() with the working code from
6288 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6292 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6293 made it impossible to use the same SSL_SESSION data structure in
6294 SSL2 clients in multiple threads.
6297 *) The return value of RAND_load_file() no longer counts bytes obtained
6298 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6299 to seed the PRNG (previously an explicit byte count was required).
6300 [Ulf Möller, Bodo Möller]
6302 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6303 used (char *) instead of (void *) and had casts all over the place.
6306 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6309 *) Retain source code compatibility for BN_prime_checks macro:
6310 BN_is_prime(..., BN_prime_checks, ...) now uses
6311 BN_prime_checks_for_size to determine the appropriate number of
6312 Rabin-Miller iterations.
6315 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6316 DH_CHECK_P_NOT_SAFE_PRIME.
6317 (Check if this is true? OpenPGP calls them "strong".)
6320 *) Merge the functionality of "dh" and "gendh" programs into a new program
6321 "dhparam". The old programs are retained for now but will handle DH keys
6322 (instead of parameters) in future.
6325 *) Make the ciphers, s_server and s_client programs check the return values
6326 when a new cipher list is set.
6329 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6330 ciphers. Before when the 56bit ciphers were enabled the sorting was
6333 The syntax for the cipher sorting has been extended to support sorting by
6334 cipher-strength (using the strength_bits hard coded in the tables).
6335 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6337 Fix a bug in the cipher-command parser: when supplying a cipher command
6338 string with an "undefined" symbol (neither command nor alphanumeric
6339 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6340 an error is flagged.
6342 Due to the strength-sorting extension, the code of the
6343 ssl_create_cipher_list() function was completely rearranged. I hope that
6344 the readability was also increased :-)
6345 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6347 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6348 for the first serial number and places 2 in the serial number file. This
6349 avoids problems when the root CA is created with serial number zero and
6350 the first user certificate has the same issuer name and serial number
6354 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6355 the new code. Add documentation for this stuff.
6358 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6359 X509_*() to X509at_*() on the grounds that they don't handle X509
6360 structures and behave in an analagous way to the X509v3 functions:
6361 they shouldn't be called directly but wrapper functions should be used
6364 So we also now have some wrapper functions that call the X509at functions
6365 when passed certificate requests. (TO DO: similar things can be done with
6366 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6367 things. Some of these need some d2i or i2d and print functionality
6368 because they handle more complex structures.)
6371 *) Add missing #ifndefs that caused missing symbols when building libssl
6372 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6373 NO_RSA in ssl/s2*.c.
6374 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6376 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6377 has a return value which indicates the quality of the random data
6378 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6379 error queue. New function RAND_pseudo_bytes() generates output that is
6380 guaranteed to be unique but not unpredictable. RAND_add is like
6381 RAND_seed, but takes an extra argument for an entropy estimate
6382 (RAND_seed always assumes full entropy).
6385 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6386 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6387 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6388 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6389 false-positive rate of at most 2^-80 for random input.
6392 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6395 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6396 in the 0.9.5 release), this returns the chain
6397 from an X509_CTX structure with a dup of the stack and all
6398 the X509 reference counts upped: so the stack will exist
6399 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6402 Also make SSL_SESSION_print() print out the verify return
6406 *) Add manpage for the pkcs12 command. Also change the default
6407 behaviour so MAC iteration counts are used unless the new
6408 -nomaciter option is used. This improves file security and
6409 only older versions of MSIE (4.0 for example) need it.
6412 *) Honor the no-xxx Configure options when creating .DEF files.
6415 *) Add PKCS#10 attributes to field table: challengePassword,
6416 unstructuredName and unstructuredAddress. These are taken from
6417 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6418 international characters are used.
6420 More changes to X509_ATTRIBUTE code: allow the setting of types
6421 based on strings. Remove the 'loc' parameter when adding
6422 attributes because these will be a SET OF encoding which is sorted
6426 *) Initial changes to the 'req' utility to allow request generation
6427 automation. This will allow an application to just generate a template
6428 file containing all the field values and have req construct the
6431 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6432 used all over the place including certificate requests and PKCS#7
6433 structures. They are currently handled manually where necessary with
6434 some primitive wrappers for PKCS#7. The new functions behave in a
6435 manner analogous to the X509 extension functions: they allow
6436 attributes to be looked up by NID and added.
6438 Later something similar to the X509V3 code would be desirable to
6439 automatically handle the encoding, decoding and printing of the
6440 more complex types. The string types like challengePassword can
6441 be handled by the string table functions.
6443 Also modified the multi byte string table handling. Now there is
6444 a 'global mask' which masks out certain types. The table itself
6445 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6446 is useful when for example there is only one permissible type
6447 (as in countryName) and using the mask might result in no valid
6451 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6452 SSL_get_peer_finished to allow applications to obtain the latest
6453 Finished messages sent to the peer or expected from the peer,
6454 respectively. (SSL_get_peer_finished is usually the Finished message
6455 actually received from the peer, otherwise the protocol will be aborted.)
6457 As the Finished message are message digests of the complete handshake
6458 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6459 be used for external authentication procedures when the authentication
6460 provided by SSL/TLS is not desired or is not enough.
6463 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6464 the host supports BWX extension and if Compaq C is present on the
6465 $PATH. Just exploiting of the BWX extension results in 20-30%
6466 performance kick for some algorithms, e.g. DES and RC4 to mention
6467 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6471 *) Add support for MS "fast SGC". This is arguably a violation of the
6472 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6473 weak crypto and after checking the certificate is SGC a second one
6474 with strong crypto. MS SGC stops the first handshake after receiving
6475 the server certificate message and sends a second client hello. Since
6476 a server will typically do all the time consuming operations before
6477 expecting any further messages from the client (server key exchange
6478 is the most expensive) there is little difference between the two.
6480 To get OpenSSL to support MS SGC we have to permit a second client
6481 hello message after we have sent server done. In addition we have to
6482 reset the MAC if we do get this second client hello.
6485 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6486 if a DER encoded private key is RSA or DSA traditional format. Changed
6487 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6488 format DER encoded private key. Newer code should use PKCS#8 format which
6489 has the key type encoded in the ASN1 structure. Added DER private key
6490 support to pkcs8 application.
6493 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6494 ciphersuites has been selected (as required by the SSL 3/TLS 1
6495 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6496 is set, we interpret this as a request to violate the specification
6497 (the worst that can happen is a handshake failure, and 'correct'
6498 behaviour would result in a handshake failure anyway).
6501 *) In SSL_CTX_add_session, take into account that there might be multiple
6502 SSL_SESSION structures with the same session ID (e.g. when two threads
6503 concurrently obtain them from an external cache).
6504 The internal cache can handle only one SSL_SESSION with a given ID,
6505 so if there's a conflict, we now throw out the old one to achieve
6509 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6510 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6511 some routines that use cipher OIDs: some ciphers do not have OIDs
6512 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6516 *) Simplify the trust setting structure and code. Now we just have
6517 two sequences of OIDs for trusted and rejected settings. These will
6518 typically have values the same as the extended key usage extension
6519 and any application specific purposes.
6521 The trust checking code now has a default behaviour: it will just
6522 check for an object with the same NID as the passed id. Functions can
6523 be provided to override either the default behaviour or the behaviour
6524 for a given id. SSL client, server and email already have functions
6525 in place for compatibility: they check the NID and also return "trusted"
6526 if the certificate is self signed.
6529 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6530 traditional format into an EVP_PKEY structure.
6533 *) Add a password callback function PEM_cb() which either prompts for
6534 a password if usr_data is NULL or otherwise assumes it is a null
6535 terminated password. Allow passwords to be passed on command line
6536 environment or config files in a few more utilities.
6539 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6540 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6541 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6542 Update documentation.
6545 *) Support for ASN1 "NULL" type. This could be handled before by using
6546 ASN1_TYPE but there wasn't any function that would try to read a NULL
6547 and produce an error if it couldn't. For compatibility we also have
6548 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6549 don't allocate anything because they don't need to.
6552 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6554 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6556 *) Rebuild of the memory allocation routines used by OpenSSL code and
6557 possibly others as well. The purpose is to make an interface that
6558 provide hooks so anyone can build a separate set of allocation and
6559 deallocation routines to be used by OpenSSL, for example memory
6560 pool implementations, or something else, which was previously hard
6561 since Malloc(), Realloc() and Free() were defined as macros having
6562 the values malloc, realloc and free, respectively (except for Win32
6563 compilations). The same is provided for memory debugging code.
6564 OpenSSL already comes with functionality to find memory leaks, but
6565 this gives people a chance to debug other memory problems.
6567 With these changes, a new set of functions and macros have appeared:
6569 CRYPTO_set_mem_debug_functions() [F]
6570 CRYPTO_get_mem_debug_functions() [F]
6571 CRYPTO_dbg_set_options() [F]
6572 CRYPTO_dbg_get_options() [F]
6573 CRYPTO_malloc_debug_init() [M]
6575 The memory debug functions are NULL by default, unless the library
6576 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6577 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6578 gives the standard debugging functions that come with OpenSSL) or
6579 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6580 provided by the library user) must be used. When the standard
6581 debugging functions are used, CRYPTO_dbg_set_options can be used to
6582 request additional information:
6583 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6584 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6586 Also, things like CRYPTO_set_mem_functions will always give the
6587 expected result (the new set of functions is used for allocation
6588 and deallocation) at all times, regardless of platform and compiler
6591 To finish it up, some functions that were never use in any other
6592 way than through macros have a new API and new semantic:
6595 CRYPTO_dbg_realloc()
6598 All macros of value have retained their old syntax.
6599 [Richard Levitte and Bodo Moeller]
6601 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6602 ordering of SMIMECapabilities wasn't in "strength order" and there
6603 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6607 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6608 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6609 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6611 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6612 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6613 functionality to handle multipart/signed properly) and a utility
6614 called 'smime' to call all this stuff. This is based on code I
6615 originally wrote for Celo who have kindly allowed it to be
6616 included in OpenSSL.
6619 *) Add variants des_set_key_checked and des_set_key_unchecked of
6620 des_set_key (aka des_key_sched). Global variable des_check_key
6621 decides which of these is called by des_set_key; this way
6622 des_check_key behaves as it always did, but applications and
6623 the library itself, which was buggy for des_check_key == 1,
6624 have a cleaner way to pick the version they need.
6627 *) New function PKCS12_newpass() which changes the password of a
6631 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6632 dynamic mix. In both cases the ids can be used as an index into the
6633 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6634 functions so they accept a list of the field values and the
6635 application doesn't need to directly manipulate the X509_TRUST
6639 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6643 *) Modify the way the V3 extension code looks up extensions. This now
6644 works in a similar way to the object code: we have some "standard"
6645 extensions in a static table which is searched with OBJ_bsearch()
6646 and the application can add dynamic ones if needed. The file
6647 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6648 updated whenever a new extension is added to the core code and kept
6649 in ext_nid order. There is a simple program 'tabtest.c' which checks
6650 this. New extensions are not added too often so this file can readily
6651 be maintained manually.
6653 There are two big advantages in doing things this way. The extensions
6654 can be looked up immediately and no longer need to be "added" using
6655 X509V3_add_standard_extensions(): this function now does nothing.
6656 [Side note: I get *lots* of email saying the extension code doesn't
6657 work because people forget to call this function]
6658 Also no dynamic allocation is done unless new extensions are added:
6659 so if we don't add custom extensions there is no need to call
6660 X509V3_EXT_cleanup().
6663 *) Modify enc utility's salting as follows: make salting the default. Add a
6664 magic header, so unsalted files fail gracefully instead of just decrypting
6665 to garbage. This is because not salting is a big security hole, so people
6666 should be discouraged from doing it.
6669 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6670 digest to be passed on the command line but it only used this
6671 parameter when signing a certificate. Modified so all relevant
6672 operations are affected by the digest parameter including the
6673 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6674 DSA key was used because it didn't fix the digest.
6677 *) Initial certificate chain verify code. Currently tests the untrusted
6678 certificates for consistency with the verify purpose (which is set
6679 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6681 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6682 this is because it will reject chains with invalid extensions whereas
6683 every previous version of OpenSSL and SSLeay made no checks at all.
6685 Trust code: checks the root CA for the relevant trust settings. Trust
6686 settings have an initial value consistent with the verify purpose: e.g.
6687 if the verify purpose is for SSL client use it expects the CA to be
6688 trusted for SSL client use. However the default value can be changed to
6689 permit custom trust settings: one example of this would be to only trust
6690 certificates from a specific "secure" set of CAs.
6692 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6693 which should be used for version portability: especially since the
6694 verify structure is likely to change more often now.
6696 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6697 to set them. If not set then assume SSL clients will verify SSL servers
6700 Two new options to the verify program: -untrusted allows a set of
6701 untrusted certificates to be passed in and -purpose which sets the
6702 intended purpose of the certificate. If a purpose is set then the
6703 new chain verify code is used to check extension consistency.
6706 *) Support for the authority information access extension.
6709 *) Modify RSA and DSA PEM read routines to transparently handle
6710 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6711 public keys in a format compatible with certificate
6712 SubjectPublicKeyInfo structures. Unfortunately there were already
6713 functions called *_PublicKey_* which used various odd formats so
6714 these are retained for compatibility: however the DSA variants were
6715 never in a public release so they have been deleted. Changed dsa/rsa
6716 utilities to handle the new format: note no releases ever handled public
6717 keys so we should be OK.
6719 The primary motivation for this change is to avoid the same fiasco
6720 that dogs private keys: there are several incompatible private key
6721 formats some of which are standard and some OpenSSL specific and
6722 require various evil hacks to allow partial transparent handling and
6723 even then it doesn't work with DER formats. Given the option anything
6724 other than PKCS#8 should be dumped: but the other formats have to
6725 stay in the name of compatibility.
6727 With public keys and the benefit of hindsight one standard format
6728 is used which works with EVP_PKEY, RSA or DSA structures: though
6729 it clearly returns an error if you try to read the wrong kind of key.
6731 Added a -pubkey option to the 'x509' utility to output the public key.
6732 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6733 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6734 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6735 that do the same as the EVP_PKEY_assign_*() except they up the
6736 reference count of the added key (they don't "swallow" the
6740 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6741 CRLs would fail if the file contained no certificates or no CRLs:
6742 added a new function to read in both types and return the number
6743 read: this means that if none are read it will be an error. The
6744 DER versions of the certificate and CRL reader would always fail
6745 because it isn't possible to mix certificates and CRLs in DER format
6746 without choking one or the other routine. Changed this to just read
6747 a certificate: this is the best we can do. Also modified the code
6748 in apps/verify.c to take notice of return codes: it was previously
6749 attempting to read in certificates from NULL pointers and ignoring
6750 any errors: this is one reason why the cert and CRL reader seemed
6751 to work. It doesn't check return codes from the default certificate
6752 routines: these may well fail if the certificates aren't installed.
6755 *) Code to support otherName option in GeneralName.
6758 *) First update to verify code. Change the verify utility
6759 so it warns if it is passed a self signed certificate:
6760 for consistency with the normal behaviour. X509_verify
6761 has been modified to it will now verify a self signed
6762 certificate if *exactly* the same certificate appears
6763 in the store: it was previously impossible to trust a
6764 single self signed certificate. This means that:
6765 openssl verify ss.pem
6766 now gives a warning about a self signed certificate but
6767 openssl verify -CAfile ss.pem ss.pem
6771 *) For servers, store verify_result in SSL_SESSION data structure
6772 (and add it to external session representation).
6773 This is needed when client certificate verifications fails,
6774 but an application-provided verification callback (set by
6775 SSL_CTX_set_cert_verify_callback) allows accepting the session
6776 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6777 but returns 1): When the session is reused, we have to set
6778 ssl->verify_result to the appropriate error code to avoid
6780 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6782 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6783 case in PKCS7_dataInit() where the signed PKCS7 structure
6784 didn't contain any existing data because it was being created.
6785 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6787 *) Add a salt to the key derivation routines in enc.c. This
6788 forms the first 8 bytes of the encrypted file. Also add a
6789 -S option to allow a salt to be input on the command line.
6792 *) New function X509_cmp(). Oddly enough there wasn't a function
6793 to compare two certificates. We do this by working out the SHA1
6794 hash and comparing that. X509_cmp() will be needed by the trust
6798 *) SSL_get1_session() is like SSL_get_session(), but increments
6799 the reference count in the SSL_SESSION returned.
6800 [Geoff Thorpe <geoff@eu.c2.net>]
6802 *) Fix for 'req': it was adding a null to request attributes.
6803 Also change the X509_LOOKUP and X509_INFO code to handle
6804 certificate auxiliary information.
6807 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6811 *) Add the possibility to add extra information to the memory leak
6812 detecting output, to form tracebacks, showing from where each
6813 allocation was originated: CRYPTO_push_info("constant string") adds
6814 the string plus current file name and line number to a per-thread
6815 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6816 is like calling CYRPTO_pop_info() until the stack is empty.
6817 Also updated memory leak detection code to be multi-thread-safe.
6820 *) Add options -text and -noout to pkcs7 utility and delete the
6821 encryption options which never did anything. Update docs.
6824 *) Add options to some of the utilities to allow the pass phrase
6825 to be included on either the command line (not recommended on
6826 OSes like Unix) or read from the environment. Update the
6827 manpages and fix a few bugs.
6830 *) Add a few manpages for some of the openssl commands.
6833 *) Fix the -revoke option in ca. It was freeing up memory twice,
6834 leaking and not finding already revoked certificates.
6837 *) Extensive changes to support certificate auxiliary information.
6838 This involves the use of X509_CERT_AUX structure and X509_AUX
6839 functions. An X509_AUX function such as PEM_read_X509_AUX()
6840 can still read in a certificate file in the usual way but it
6841 will also read in any additional "auxiliary information". By
6842 doing things this way a fair degree of compatibility can be
6843 retained: existing certificates can have this information added
6844 using the new 'x509' options.
6846 Current auxiliary information includes an "alias" and some trust
6847 settings. The trust settings will ultimately be used in enhanced
6848 certificate chain verification routines: currently a certificate
6849 can only be trusted if it is self signed and then it is trusted
6853 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6854 The problem was that one of the replacement routines had not been working
6855 since SSLeay releases. For now the offending routine has been replaced
6856 with non-optimised assembler. Even so, this now gives around 95%
6857 performance improvement for 1024 bit RSA signs.
6860 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6861 handling. Most clients have the effective key size in bits equal to
6862 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6863 A few however don't do this and instead use the size of the decrypted key
6864 to determine the RC2 key length and the AlgorithmIdentifier to determine
6865 the effective key length. In this case the effective key length can still
6866 be 40 bits but the key length can be 168 bits for example. This is fixed
6867 by manually forcing an RC2 key into the EVP_PKEY structure because the
6868 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6869 the key length and effective key length are equal.
6872 *) Add a bunch of functions that should simplify the creation of
6873 X509_NAME structures. Now you should be able to do:
6874 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6875 and have it automatically work out the correct field type and fill in
6876 the structures. The more adventurous can try:
6877 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6878 and it will (hopefully) work out the correct multibyte encoding.
6881 *) Change the 'req' utility to use the new field handling and multibyte
6882 copy routines. Before the DN field creation was handled in an ad hoc
6883 way in req, ca, and x509 which was rather broken and didn't support
6884 BMPStrings or UTF8Strings. Since some software doesn't implement
6885 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6886 using the dirstring_type option. See the new comment in the default
6887 openssl.cnf for more info.
6890 *) Make crypto/rand/md_rand.c more robust:
6891 - Assure unique random numbers after fork().
6892 - Make sure that concurrent threads access the global counter and
6893 md serializably so that we never lose entropy in them
6894 or use exactly the same state in multiple threads.
6895 Access to the large state is not always serializable because
6896 the additional locking could be a performance killer, and
6897 md should be large enough anyway.
6900 *) New file apps/app_rand.c with commonly needed functionality
6901 for handling the random seed file.
6903 Use the random seed file in some applications that previously did not:
6905 dsaparam -genkey (which also ignored its '-rand' option),
6908 x509 (when signing).
6909 Except on systems with /dev/urandom, it is crucial to have a random
6910 seed file at least for key creation, DSA signing, and for DH exchanges;
6911 for RSA signatures we could do without one.
6913 gendh and gendsa (unlike genrsa) used to read only the first byte
6914 of each file listed in the '-rand' option. The function as previously
6915 found in genrsa is now in app_rand.c and is used by all programs
6916 that support '-rand'.
6919 *) In RAND_write_file, use mode 0600 for creating files;
6920 don't just chmod when it may be too late.
6923 *) Report an error from X509_STORE_load_locations
6924 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6927 *) New function ASN1_mbstring_copy() this copies a string in either
6928 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6929 into an ASN1_STRING type. A mask of permissible types is passed
6930 and it chooses the "minimal" type to use or an error if not type
6934 *) Add function equivalents to the various macros in asn1.h. The old
6935 macros are retained with an M_ prefix. Code inside the library can
6936 use the M_ macros. External code (including the openssl utility)
6937 should *NOT* in order to be "shared library friendly".
6940 *) Add various functions that can check a certificate's extensions
6941 to see if it usable for various purposes such as SSL client,
6942 server or S/MIME and CAs of these types. This is currently
6943 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6944 verification. Also added a -purpose flag to x509 utility to
6945 print out all the purposes.
6948 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6952 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6953 for, obtain and decode and extension and obtain its critical flag.
6954 This allows all the necessary extension code to be handled in a
6955 single function call.
6958 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6959 platforms. See crypto/rc4/rc4_enc.c for further details.
6962 *) New -noout option to asn1parse. This causes no output to be produced
6963 its main use is when combined with -strparse and -out to extract data
6964 from a file (which may not be in ASN.1 format).
6967 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6968 when producing the local key id.
6969 [Richard Levitte <levitte@stacken.kth.se>]
6971 *) New option -dhparam in s_server. This allows a DH parameter file to be
6972 stated explicitly. If it is not stated then it tries the first server
6973 certificate file. The previous behaviour hard coded the filename
6977 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6978 a public key to be input or output. For example:
6979 openssl rsa -in key.pem -pubout -out pubkey.pem
6980 Also added necessary DSA public key functions to handle this.
6983 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6984 in the message. This was handled by allowing
6985 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6986 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6988 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6989 to the end of the strings whereas this didn't. This would cause problems
6990 if strings read with d2i_ASN1_bytes() were later modified.
6991 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6993 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6994 data and it contains EOF it will end up returning an error. This is
6995 caused by input 46 bytes long. The cause is due to the way base64
6996 BIOs find the start of base64 encoded data. They do this by trying a
6997 trial decode on each line until they find one that works. When they
6998 do a flag is set and it starts again knowing it can pass all the
6999 data directly through the decoder. Unfortunately it doesn't reset
7000 the context it uses. This means that if EOF is reached an attempt
7001 is made to pass two EOFs through the context and this causes the
7002 resulting error. This can also cause other problems as well. As is
7003 usual with these problems it takes *ages* to find and the fix is
7004 trivial: move one line.
7005 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7007 *) Ugly workaround to get s_client and s_server working under Windows. The
7008 old code wouldn't work because it needed to select() on sockets and the
7009 tty (for keypresses and to see if data could be written). Win32 only
7010 supports select() on sockets so we select() with a 1s timeout on the
7011 sockets and then see if any characters are waiting to be read, if none
7012 are present then we retry, we also assume we can always write data to
7013 the tty. This isn't nice because the code then blocks until we've
7014 received a complete line of data and it is effectively polling the
7015 keyboard at 1s intervals: however it's quite a bit better than not
7016 working at all :-) A dedicated Windows application might handle this
7017 with an event loop for example.
7020 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7021 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7022 will be called when RSA_sign() and RSA_verify() are used. This is useful
7023 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7024 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7025 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7026 This necessitated the support of an extra signature type NID_md5_sha1
7027 for SSL signatures and modifications to the SSL library to use it instead
7028 of calling RSA_public_decrypt() and RSA_private_encrypt().
7031 *) Add new -verify -CAfile and -CApath options to the crl program, these
7032 will lookup a CRL issuers certificate and verify the signature in a
7033 similar way to the verify program. Tidy up the crl program so it
7034 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7035 less strict. It will now permit CRL extensions even if it is not
7036 a V2 CRL: this will allow it to tolerate some broken CRLs.
7039 *) Initialize all non-automatic variables each time one of the openssl
7040 sub-programs is started (this is necessary as they may be started
7041 multiple times from the "OpenSSL>" prompt).
7042 [Lennart Bang, Bodo Moeller]
7044 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7045 removing all other RSA functionality (this is what NO_RSA does). This
7046 is so (for example) those in the US can disable those operations covered
7047 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7051 *) Non-copying interface to BIO pairs.
7052 (still largely untested)
7055 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7056 ASCII string. This was handled independently in various places before.
7059 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7060 UTF8 strings a character at a time.
7063 *) Use client_version from client hello to select the protocol
7064 (s23_srvr.c) and for RSA client key exchange verification
7065 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7068 *) Add various utility functions to handle SPKACs, these were previously
7069 handled by poking round in the structure internals. Added new function
7070 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7071 print, verify and generate SPKACs. Based on an original idea from
7072 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7075 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7078 *) Allow the config file extension section to be overwritten on the
7079 command line. Based on an original idea from Massimiliano Pala
7080 <madwolf@comune.modena.it>. The new option is called -extensions
7081 and can be applied to ca, req and x509. Also -reqexts to override
7082 the request extensions in req and -crlexts to override the crl extensions
7086 *) Add new feature to the SPKAC handling in ca. Now you can include
7087 the same field multiple times by preceding it by "XXXX." for example:
7090 this is the same syntax as used in the req config file.
7093 *) Allow certificate extensions to be added to certificate requests. These
7094 are specified in a 'req_extensions' option of the req section of the
7095 config file. They can be printed out with the -text option to req but
7096 are otherwise ignored at present.
7099 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7100 data read consists of only the final block it would not decrypted because
7101 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7102 A misplaced 'break' also meant the decrypted final block might not be
7103 copied until the next read.
7106 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7107 a few extra parameters to the DH structure: these will be useful if
7108 for example we want the value of 'q' or implement X9.42 DH.
7111 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7112 provides hooks that allow the default DSA functions or functions on a
7113 "per key" basis to be replaced. This allows hardware acceleration and
7114 hardware key storage to be handled without major modification to the
7115 library. Also added low level modexp hooks and CRYPTO_EX structure and
7116 associated functions.
7119 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7120 as "read only": it can't be written to and the buffer it points to will
7121 not be freed. Reading from a read only BIO is much more efficient than
7122 a normal memory BIO. This was added because there are several times when
7123 an area of memory needs to be read from a BIO. The previous method was
7124 to create a memory BIO and write the data to it, this results in two
7125 copies of the data and an O(n^2) reading algorithm. There is a new
7126 function BIO_new_mem_buf() which creates a read only memory BIO from
7127 an area of memory. Also modified the PKCS#7 routines to use read only
7131 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7132 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7133 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7134 but a retry condition occured while trying to read the rest.
7137 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7138 NID_pkcs7_encrypted by default: this was wrong since this should almost
7139 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7140 the encrypted data type: this is a more sensible place to put it and it
7141 allows the PKCS#12 code to be tidied up that duplicated this
7145 *) Changed obj_dat.pl script so it takes its input and output files on
7146 the command line. This should avoid shell escape redirection problems
7150 *) Initial support for certificate extension requests, these are included
7151 in things like Xenroll certificate requests. Included functions to allow
7152 extensions to be obtained and added.
7155 *) -crlf option to s_client and s_server for sending newlines as
7156 CRLF (as required by many protocols).
7159 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7161 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7162 [Ralf S. Engelschall]
7164 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7165 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7167 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7171 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7172 DH parameters/keys (q is lost during that conversion, but the resulting
7173 DH parameters contain its length).
7175 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7176 much faster than DH_generate_parameters (which creates parameters
7177 where p = 2*q + 1), and also the smaller q makes DH computations
7178 much more efficient (160-bit exponentiation instead of 1024-bit
7179 exponentiation); so this provides a convenient way to support DHE
7180 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7181 utter importance to use
7182 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7184 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7185 when such DH parameters are used, because otherwise small subgroup
7186 attacks may become possible!
7189 *) Avoid memory leak in i2d_DHparams.
7192 *) Allow the -k option to be used more than once in the enc program:
7193 this allows the same encrypted message to be read by multiple recipients.
7196 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7197 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7198 it will always use the numerical form of the OID, even if it has a short
7202 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7203 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7204 otherwise bn_mod_exp was called. In the case of hardware keys for example
7205 no private key components need be present and it might store extra data
7206 in the RSA structure, which cannot be accessed from bn_mod_exp.
7207 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7208 private key operations.
7211 *) Added support for SPARC Linux.
7214 *) pem_password_cb function type incompatibly changed from
7215 typedef int pem_password_cb(char *buf, int size, int rwflag);
7217 ....(char *buf, int size, int rwflag, void *userdata);
7218 so that applications can pass data to their callbacks:
7219 The PEM[_ASN1]_{read,write}... functions and macros now take an
7220 additional void * argument, which is just handed through whenever
7221 the password callback is called.
7222 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7224 New function SSL_CTX_set_default_passwd_cb_userdata.
7226 Compatibility note: As many C implementations push function arguments
7227 onto the stack in reverse order, the new library version is likely to
7228 interoperate with programs that have been compiled with the old
7229 pem_password_cb definition (PEM_whatever takes some data that
7230 happens to be on the stack as its last argument, and the callback
7231 just ignores this garbage); but there is no guarantee whatsoever that
7234 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7235 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7236 problems not only on Windows, but also on some Unix platforms.
7237 To avoid problematic command lines, these definitions are now in an
7238 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7239 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7242 *) MIPS III/IV assembler module is reimplemented.
7245 *) More DES library cleanups: remove references to srand/rand and
7246 delete an unused file.
7249 *) Add support for the the free Netwide assembler (NASM) under Win32,
7250 since not many people have MASM (ml) and it can be hard to obtain.
7251 This is currently experimental but it seems to work OK and pass all
7252 the tests. Check out INSTALL.W32 for info.
7255 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7256 without temporary keys kept an extra copy of the server key,
7257 and connections with temporary keys did not free everything in case
7261 *) New function RSA_check_key and new openssl rsa option -check
7262 for verifying the consistency of RSA keys.
7263 [Ulf Moeller, Bodo Moeller]
7265 *) Various changes to make Win32 compile work:
7266 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7267 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7268 comparison" warnings.
7269 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7272 *) Add a debugging option to PKCS#5 v2 key generation function: when
7273 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7274 derived keys are printed to stderr.
7277 *) Copy the flags in ASN1_STRING_dup().
7278 [Roman E. Pavlov <pre@mo.msk.ru>]
7280 *) The x509 application mishandled signing requests containing DSA
7281 keys when the signing key was also DSA and the parameters didn't match.
7283 It was supposed to omit the parameters when they matched the signing key:
7284 the verifying software was then supposed to automatically use the CA's
7285 parameters if they were absent from the end user certificate.
7287 Omitting parameters is no longer recommended. The test was also
7288 the wrong way round! This was probably due to unusual behaviour in
7289 EVP_cmp_parameters() which returns 1 if the parameters match.
7290 This meant that parameters were omitted when they *didn't* match and
7291 the certificate was useless. Certificates signed with 'ca' didn't have
7293 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7295 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7296 The interface is as follows:
7297 Applications can use
7298 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7299 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7300 "off" is now the default.
7301 The library internally uses
7302 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7303 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7304 to disable memory-checking temporarily.
7306 Some inconsistent states that previously were possible (and were
7307 even the default) are now avoided.
7309 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7310 with each memory chunk allocated; this is occasionally more helpful
7311 than just having a counter.
7313 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7315 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7319 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7320 which largely parallels "options", but is for changing API behaviour,
7321 whereas "options" are about protocol behaviour.
7322 Initial "mode" flags are:
7324 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7325 a single record has been written.
7326 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7327 retries use the same buffer location.
7328 (But all of the contents must be
7332 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7335 *) Fix problems with no-hmac etc.
7336 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7338 *) New functions RSA_get_default_method(), RSA_set_method() and
7339 RSA_get_method(). These allows replacement of RSA_METHODs without having
7340 to mess around with the internals of an RSA structure.
7343 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7344 Also really enable memory leak checks in openssl.c and in some
7346 [Chad C. Mulligan, Bodo Moeller]
7348 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7349 up the length of negative integers. This has now been simplified to just
7350 store the length when it is first determined and use it later, rather
7351 than trying to keep track of where data is copied and updating it to
7353 [Steve Henson, reported by Brien Wheeler
7354 <bwheeler@authentica-security.com>]
7356 *) Add a new function PKCS7_signatureVerify. This allows the verification
7357 of a PKCS#7 signature but with the signing certificate passed to the
7358 function itself. This contrasts with PKCS7_dataVerify which assumes the
7359 certificate is present in the PKCS#7 structure. This isn't always the
7360 case: certificates can be omitted from a PKCS#7 structure and be
7361 distributed by "out of band" means (such as a certificate database).
7364 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7365 function prototypes in pem.h, also change util/mkdef.pl to add the
7366 necessary function names.
7369 *) mk1mf.pl (used by Windows builds) did not properly read the
7370 options set by Configure in the top level Makefile, and Configure
7371 was not even able to write more than one option correctly.
7372 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7375 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7376 file to be loaded from a BIO or FILE pointer. The BIO version will
7377 for example allow memory BIOs to contain config info.
7380 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7381 Whoever hopes to achieve shared-library compatibility across versions
7382 must use this, not the compile-time macro.
7383 (Exercise 0.9.4: Which is the minimum library version required by
7385 Note: All this applies only to multi-threaded programs, others don't
7389 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7390 through a BIO pair triggered the default case, i.e.
7391 SSLerr(...,SSL_R_UNKNOWN_STATE).
7394 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7395 can use the SSL library even if none of the specific BIOs is
7399 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7400 for the encoded length.
7401 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7403 *) Add initial documentation of the X509V3 functions.
7406 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7407 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7408 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7409 secure PKCS#8 private key format with a high iteration count.
7412 *) Fix determination of Perl interpreter: A perl or perl5
7413 _directory_ in $PATH was also accepted as the interpreter.
7414 [Ralf S. Engelschall]
7416 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7417 wrong with it but it was very old and did things like calling
7418 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7422 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7423 to use the new extension code.
7426 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7427 with macros. This should make it easier to change their form, add extra
7428 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7432 *) Add to configuration table a new entry that can specify an alternative
7433 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7434 according to Mark Crispin <MRC@Panda.COM>.
7438 *) DES CBC did not update the IV. Weird.
7441 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7442 Changing the behaviour of the former might break existing programs --
7443 where IV updating is needed, des_ncbc_encrypt can be used.
7446 *) When bntest is run from "make test" it drives bc to check its
7447 calculations, as well as internally checking them. If an internal check
7448 fails, it needs to cause bc to give a non-zero result or make test carries
7449 on without noticing the failure. Fixed.
7452 *) DES library cleanups.
7455 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7456 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7457 ciphers. NOTE: although the key derivation function has been verified
7458 against some published test vectors it has not been extensively tested
7459 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7463 *) Instead of "mkdir -p", which is not fully portable, use new
7464 Perl script "util/mkdir-p.pl".
7467 *) Rewrite the way password based encryption (PBE) is handled. It used to
7468 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7469 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7470 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7471 the 'parameter' field of the AlgorithmIdentifier is passed to the
7472 underlying key generation function so it must do its own ASN1 parsing.
7473 This has also changed the EVP_PBE_CipherInit() function which now has a
7474 'parameter' argument instead of literal salt and iteration count values
7475 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7478 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7479 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7480 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7481 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7482 value was just used as a "magic string" and not used directly its
7483 value doesn't matter.
7486 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7490 *) "linux-sparc64" configuration (ultrapenguin).
7491 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7492 "linux-sparc" configuration.
7493 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7495 *) config now generates no-xxx options for missing ciphers.
7498 *) Support the EBCDIC character set (work in progress).
7499 File ebcdic.c not yet included because it has a different license.
7500 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7502 *) Support BS2000/OSD-POSIX.
7503 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7505 *) Make callbacks for key generation use void * instead of char *.
7508 *) Make S/MIME samples compile (not yet tested).
7511 *) Additional typesafe stacks.
7514 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7518 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7520 *) New configuration variant "sco5-gcc".
7522 *) Updated some demos.
7523 [Sean O Riordain, Wade Scholine]
7525 *) Add missing BIO_free at exit of pkcs12 application.
7528 *) Fix memory leak in conf.c.
7531 *) Updates for Win32 to assembler version of MD5.
7534 *) Set #! path to perl in apps/der_chop to where we found it
7535 instead of using a fixed path.
7538 *) SHA library changes for irix64-mips4-cc.
7541 *) Improvements for VMS support.
7545 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7547 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7548 This also avoids the problems with SC4.2 and unpatched SC5.
7549 [Andy Polyakov <appro@fy.chalmers.se>]
7551 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7552 These are required because of the typesafe stack would otherwise break
7553 existing code. If old code used a structure member which used to be STACK
7554 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7555 sk_num or sk_value it would produce an error because the num, data members
7556 are not present in STACK_OF. Now it just produces a warning. sk_set
7557 replaces the old method of assigning a value to sk_value
7558 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7559 that does this will no longer work (and should use sk_set instead) but
7560 this could be regarded as a "questionable" behaviour anyway.
7563 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7564 correctly handle encrypted S/MIME data.
7567 *) Change type of various DES function arguments from des_cblock
7568 (which means, in function argument declarations, pointer to char)
7569 to des_cblock * (meaning pointer to array with 8 char elements),
7570 which allows the compiler to do more typechecking; it was like
7571 that back in SSLeay, but with lots of ugly casts.
7573 Introduce new type const_des_cblock.
7576 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7577 problems: find RecipientInfo structure that matches recipient certificate
7578 and initialise the ASN1 structures properly based on passed cipher.
7581 *) Belatedly make the BN tests actually check the results.
7584 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7585 to and from BNs: it was completely broken. New compilation option
7586 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7587 key elements as negative integers.
7590 *) Reorganize and speed up MD5.
7591 [Andy Polyakov <appro@fy.chalmers.se>]
7594 [Richard Levitte <richard@levitte.org>]
7596 *) New option -out to asn1parse to allow the parsed structure to be
7597 output to a file. This is most useful when combined with the -strparse
7598 option to examine the output of things like OCTET STRINGS.
7601 *) Make SSL library a little more fool-proof by not requiring any longer
7602 that SSL_set_{accept,connect}_state be called before
7603 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7604 in many applications because usually everything *appeared* to work as
7605 intended anyway -- now it really works as intended).
7608 *) Move openssl.cnf out of lib/.
7611 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7612 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7613 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7614 [Ralf S. Engelschall]
7616 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7617 handle PKCS#7 enveloped data properly.
7618 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7620 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7621 copying pointers. The cert_st handling is changed by this in
7622 various ways (and thus what used to be known as ctx->default_cert
7623 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7624 any longer when s->cert does not give us what we need).
7625 ssl_cert_instantiate becomes obsolete by this change.
7626 As soon as we've got the new code right (possibly it already is?),
7627 we have solved a couple of bugs of the earlier code where s->cert
7628 was used as if it could not have been shared with other SSL structures.
7630 Note that using the SSL API in certain dirty ways now will result
7631 in different behaviour than observed with earlier library versions:
7632 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7633 does not influence s as it used to.
7635 In order to clean up things more thoroughly, inside SSL_SESSION
7636 we don't use CERT any longer, but a new structure SESS_CERT
7637 that holds per-session data (if available); currently, this is
7638 the peer's certificate chain and, for clients, the server's certificate
7639 and temporary key. CERT holds only those values that can have
7640 meaningful defaults in an SSL_CTX.
7643 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7644 from the internal representation. Various PKCS#7 fixes: remove some
7645 evil casts and set the enc_dig_alg field properly based on the signing
7649 *) Allow PKCS#12 password to be set from the command line or the
7650 environment. Let 'ca' get its config file name from the environment
7651 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7655 *) Allow certificate policies extension to use an IA5STRING for the
7656 organization field. This is contrary to the PKIX definition but
7657 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7661 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7662 without disallowing inline assembler and the like for non-pedantic builds.
7665 *) Support Borland C++ builder.
7666 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7671 *) SHA-1 cleanups and performance enhancements.
7672 [Andy Polyakov <appro@fy.chalmers.se>]
7674 *) Sparc v8plus assembler for the bignum library.
7675 [Andy Polyakov <appro@fy.chalmers.se>]
7677 *) Accept any -xxx and +xxx compiler options in Configure.
7680 *) Update HPUX configuration.
7683 *) Add missing sk_<type>_unshift() function to safestack.h
7684 [Ralf S. Engelschall]
7686 *) New function SSL_CTX_use_certificate_chain_file that sets the
7687 "extra_cert"s in addition to the certificate. (This makes sense
7688 only for "PEM" format files, as chains as a whole are not
7692 *) Support verify_depth from the SSL API.
7693 x509_vfy.c had what can be considered an off-by-one-error:
7694 Its depth (which was not part of the external interface)
7695 was actually counting the number of certificates in a chain;
7696 now it really counts the depth.
7699 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7700 instead of X509err, which often resulted in confusing error
7701 messages since the error codes are not globally unique
7702 (e.g. an alleged error in ssl3_accept when a certificate
7703 didn't match the private key).
7705 *) New function SSL_CTX_set_session_id_context that allows to set a default
7706 value (so that you don't need SSL_set_session_id_context for each
7707 connection using the SSL_CTX).
7710 *) OAEP decoding bug fix.
7713 *) Support INSTALL_PREFIX for package builders, as proposed by
7717 *) New Configure options "threads" and "no-threads". For systems
7718 where the proper compiler options are known (currently Solaris
7719 and Linux), "threads" is the default.
7722 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7725 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7726 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7727 such as /usr/local/bin.
7730 *) "make linux-shared" to build shared libraries.
7731 [Niels Poppe <niels@netbox.org>]
7733 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7736 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7737 extension adding in x509 utility.
7740 *) Remove NOPROTO sections and error code comments.
7743 *) Partial rewrite of the DEF file generator to now parse the ANSI
7747 *) New Configure options --prefix=DIR and --openssldir=DIR.
7750 *) Complete rewrite of the error code script(s). It is all now handled
7751 by one script at the top level which handles error code gathering,
7752 header rewriting and C source file generation. It should be much better
7753 than the old method: it now uses a modified version of Ulf's parser to
7754 read the ANSI prototypes in all header files (thus the old K&R definitions
7755 aren't needed for error creation any more) and do a better job of
7756 translating function codes into names. The old 'ASN1 error code imbedded
7757 in a comment' is no longer necessary and it doesn't use .err files which
7758 have now been deleted. Also the error code call doesn't have to appear all
7759 on one line (which resulted in some large lines...).
7762 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7765 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7766 0 (which usually indicates a closed connection), but continue reading.
7769 *) Fix some race conditions.
7772 *) Add support for CRL distribution points extension. Add Certificate
7773 Policies and CRL distribution points documentation.
7776 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7779 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7780 8 of keying material. Merlin has also confirmed interop with this fix
7781 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7782 [Merlin Hughes <merlin@baltimore.ie>]
7784 *) Fix lots of warnings.
7785 [Richard Levitte <levitte@stacken.kth.se>]
7787 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7788 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7789 [Richard Levitte <levitte@stacken.kth.se>]
7791 *) Fix problems with sizeof(long) == 8.
7792 [Andy Polyakov <appro@fy.chalmers.se>]
7794 *) Change functions to ANSI C.
7797 *) Fix typos in error codes.
7798 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7800 *) Remove defunct assembler files from Configure.
7803 *) SPARC v8 assembler BIGNUM implementation.
7804 [Andy Polyakov <appro@fy.chalmers.se>]
7806 *) Support for Certificate Policies extension: both print and set.
7807 Various additions to support the r2i method this uses.
7810 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7811 return a const string when you are expecting an allocated buffer.
7814 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7815 types DirectoryString and DisplayText.
7818 *) Add code to allow r2i extensions to access the configuration database,
7819 add an LHASH database driver and add several ctx helper functions.
7822 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7823 fail when they extended the size of a BIGNUM.
7826 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7827 support typesafe stack.
7830 *) Fix typo in SSL_[gs]et_options().
7831 [Nils Frostberg <nils@medcom.se>]
7833 *) Delete various functions and files that belonged to the (now obsolete)
7834 old X509V3 handling code.
7837 *) New Configure option "rsaref".
7840 *) Don't auto-generate pem.h.
7843 *) Introduce type-safe ASN.1 SETs.
7846 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7847 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7849 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7850 that links with OpenSSL (well at least cause lots of warnings), but fear
7851 not: the conversion is trivial, and it eliminates loads of evil casts. A
7852 few STACKed things have been converted already. Feel free to convert more.
7853 In the fullness of time, I'll do away with the STACK type altogether.
7856 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7857 specified in <certfile> by updating the entry in the index.txt file.
7858 This way one no longer has to edit the index.txt file manually for
7859 revoking a certificate. The -revoke option does the gory details now.
7860 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7862 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7863 `-text' option at all and this way the `-noout -text' combination was
7864 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7865 [Ralf S. Engelschall]
7867 *) Make sure a corresponding plain text error message exists for the
7868 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7869 verify callback function determined that a certificate was revoked.
7870 [Ralf S. Engelschall]
7872 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7873 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7874 all available cipers including rc5, which was forgotten until now.
7875 In order to let the testing shell script know which algorithms
7876 are available, a new (up to now undocumented) command
7877 "openssl list-cipher-commands" is used.
7880 *) Bugfix: s_client occasionally would sleep in select() when
7881 it should have checked SSL_pending() first.
7884 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7885 the raw DSA values prior to ASN.1 encoding.
7888 *) Tweaks to Configure
7889 [Niels Poppe <niels@netbox.org>]
7891 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7895 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7898 *) New config option to avoid instructions that are illegal on the 80386.
7899 The default code is faster, but requires at least a 486.
7902 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7903 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7904 same as SSL2_VERSION anyway.
7907 *) New "-showcerts" option for s_client.
7910 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7911 application. Various cleanups and fixes.
7914 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7915 modify error routines to work internally. Add error codes and PBE init
7916 to library startup routines.
7919 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7920 packing functions to asn1 and evp. Changed function names and error
7921 codes along the way.
7924 *) PKCS12 integration: and so it begins... First of several patches to
7925 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7926 objects to objects.h
7929 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7930 and display support for Thawte strong extranet extension.
7933 *) Add LinuxPPC support.
7934 [Jeff Dubrule <igor@pobox.org>]
7936 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7937 bn_div_words in alpha.s.
7938 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7940 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7941 OAEP isn't supported when OpenSSL is built with RSAref.
7942 [Ulf Moeller <ulf@fitug.de>]
7944 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7945 so they no longer are missing under -DNOPROTO.
7946 [Soren S. Jorvang <soren@t.dk>]
7949 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7951 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7952 doesn't work when the session is reused. Coming soon!
7955 *) Fix a security hole, that allows sessions to be reused in the wrong
7956 context thus bypassing client cert protection! All software that uses
7957 client certs and session caches in multiple contexts NEEDS PATCHING to
7958 allow session reuse! A fuller solution is in the works.
7959 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7961 *) Some more source tree cleanups (removed obsolete files
7962 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7963 permission on "config" script to be executable) and a fix for the INSTALL
7965 [Ulf Moeller <ulf@fitug.de>]
7967 *) Remove some legacy and erroneous uses of malloc, free instead of
7969 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7971 *) Make rsa_oaep_test return non-zero on error.
7972 [Ulf Moeller <ulf@fitug.de>]
7974 *) Add support for native Solaris shared libraries. Configure
7975 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7976 if someone would make that last step automatic.
7977 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7979 *) ctx_size was not built with the right compiler during "make links". Fixed.
7982 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7983 except NULL ciphers". This means the default cipher list will no longer
7984 enable NULL ciphers. They need to be specifically enabled e.g. with
7985 the string "DEFAULT:eNULL".
7988 *) Fix to RSA private encryption routines: if p < q then it would
7989 occasionally produce an invalid result. This will only happen with
7990 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7993 *) Be less restrictive and allow also `perl util/perlpath.pl
7994 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7995 because this way one can also use an interpreter named `perl5' (which is
7996 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7997 installed as `perl').
7998 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8000 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8001 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8003 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8004 advapi32.lib to Win32 build and change the pem test comparision
8005 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8006 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8007 and crypto/des/ede_cbcm_enc.c.
8010 *) DES quad checksum was broken on big-endian architectures. Fixed.
8013 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8014 Win32 test batch file so it (might) work again. The Win32 test batch file
8015 is horrible: I feel ill....
8018 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8019 in e_os.h. Audit of header files to check ANSI and non ANSI
8020 sections: 10 functions were absent from non ANSI section and not exported
8021 from Windows DLLs. Fixed up libeay.num for new functions.
8024 *) Make `openssl version' output lines consistent.
8025 [Ralf S. Engelschall]
8027 *) Fix Win32 symbol export lists for BIO functions: Added
8028 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8029 to ms/libeay{16,32}.def.
8030 [Ralf S. Engelschall]
8032 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8033 fine under Unix and passes some trivial tests I've now added. But the
8034 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8035 added to make sure no one expects that this stuff really works in the
8036 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8037 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8039 [Ralf S. Engelschall]
8041 *) Fix the generation of two part addresses in perl.
8042 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8044 *) Add config entry for Linux on MIPS.
8045 [John Tobey <jtobey@channel1.com>]
8047 *) Make links whenever Configure is run, unless we are on Windoze.
8050 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8051 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8055 *) Add a useful kludge to allow package maintainers to specify compiler and
8056 other platforms details on the command line without having to patch the
8057 Configure script everytime: One now can use ``perl Configure
8058 <id>:<details>'', i.e. platform ids are allowed to have details appended
8059 to them (seperated by colons). This is treated as there would be a static
8060 pre-configured entry in Configure's %table under key <id> with value
8061 <details> and ``perl Configure <id>'' is called. So, when you want to
8062 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8063 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8064 now, which overrides the FreeBSD-elf entry on-the-fly.
8065 [Ralf S. Engelschall]
8067 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8070 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8071 on the `perl Configure ...' command line. This way one can compile
8072 OpenSSL libraries with Position Independent Code (PIC) which is needed
8073 for linking it into DSOs.
8074 [Ralf S. Engelschall]
8076 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8080 *) Cleaned up the LICENSE document: The official contact for any license
8081 questions now is the OpenSSL core team under openssl-core@openssl.org.
8082 And add a paragraph about the dual-license situation to make sure people
8083 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8084 to the OpenSSL toolkit.
8085 [Ralf S. Engelschall]
8087 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8088 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8089 Additonally cleaned up the `make links' target: Remove unnecessary
8090 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8091 to speed processing and no longer clutter the display with confusing
8092 stuff. Instead only the actually done links are displayed.
8093 [Ralf S. Engelschall]
8095 *) Permit null encryption ciphersuites, used for authentication only. It used
8096 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8097 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8101 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8102 signed attributes when verifying signatures (this would break them),
8103 the detached data encoding was wrong and public keys obtained using
8104 X509_get_pubkey() weren't freed.
8107 *) Add text documentation for the BUFFER functions. Also added a work around
8108 to a Win95 console bug. This was triggered by the password read stuff: the
8109 last character typed gets carried over to the next fread(). If you were
8110 generating a new cert request using 'req' for example then the last
8111 character of the passphrase would be CR which would then enter the first
8115 *) Added the new `Includes OpenSSL Cryptography Software' button as
8116 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8117 button and can be used by applications based on OpenSSL to show the
8118 relationship to the OpenSSL project.
8119 [Ralf S. Engelschall]
8121 *) Remove confusing variables in function signatures in files
8122 ssl/ssl_lib.c and ssl/ssl.h.
8123 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8125 *) Don't install bss_file.c under PREFIX/include/
8126 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8128 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8129 functions that return function pointers and has support for NT specific
8130 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8131 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8132 unsigned to signed types: this was killing the Win32 compile.
8135 *) Add new certificate file to stack functions,
8136 SSL_add_dir_cert_subjects_to_stack() and
8137 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8138 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8139 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8140 This means that Apache-SSL and similar packages don't have to mess around
8141 to add as many CAs as they want to the preferred list.
8144 *) Experiment with doxygen documentation. Currently only partially applied to
8146 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8147 openssl.doxy as the configuration file.
8150 *) Get rid of remaining C++-style comments which strict C compilers hate.
8151 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8153 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8154 compiled in by default: it has problems with large keys.
8157 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8158 DH private keys and/or callback functions which directly correspond to
8159 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8160 is needed for applications which have to configure certificates on a
8161 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8163 For the RSA certificate situation is makes no difference, but
8164 for the DSA certificate situation this fixes the "no shared cipher"
8165 problem where the OpenSSL cipher selection procedure failed because the
8166 temporary keys were not overtaken from the context and the API provided
8167 no way to reconfigure them.
8168 The new functions now let applications reconfigure the stuff and they
8169 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8170 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8171 non-public-API function ssl_cert_instantiate() is used as a helper
8172 function and also to reduce code redundancy inside ssl_rsa.c.
8173 [Ralf S. Engelschall]
8175 *) Move s_server -dcert and -dkey options out of the undocumented feature
8176 area because they are useful for the DSA situation and should be
8177 recognized by the users.
8178 [Ralf S. Engelschall]
8180 *) Fix the cipher decision scheme for export ciphers: the export bits are
8181 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8182 SSL_EXP_MASK. So, the original variable has to be used instead of the
8183 already masked variable.
8184 [Richard Levitte <levitte@stacken.kth.se>]
8186 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8187 [Richard Levitte <levitte@stacken.kth.se>]
8189 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8190 from `int' to `unsigned int' because it's a length and initialized by
8191 EVP_DigestFinal() which expects an `unsigned int *'.
8192 [Richard Levitte <levitte@stacken.kth.se>]
8194 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8195 script. Instead use the usual Shell->Perl transition trick.
8196 [Ralf S. Engelschall]
8198 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8199 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8200 -noout -modulus' as it's already the case for `openssl rsa -noout
8201 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8202 currently the public key is printed (a decision which was already done by
8203 `openssl dsa -modulus' in the past) which serves a similar purpose.
8204 Additionally the NO_RSA no longer completely removes the whole -modulus
8205 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8207 [Ralf S. Engelschall]
8209 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8210 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8211 [Arne Ansper <arne@ats.cyber.ee>]
8213 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8214 to be added. Now both 'req' and 'ca' can use new objects defined in the
8218 *) Add cool BIO that does syslog (or event log on NT).
8219 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8221 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8222 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8223 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8224 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8227 *) Add preliminary config info for new extension code.
8230 *) Make RSA_NO_PADDING really use no padding.
8231 [Ulf Moeller <ulf@fitug.de>]
8233 *) Generate errors when private/public key check is done.
8236 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8237 for some CRL extensions and new objects added.
8240 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8241 key usage extension and fuller support for authority key id.
8244 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8245 padding method for RSA, which is recommended for new applications in PKCS
8246 #1 v2.0 (RFC 2437, October 1998).
8247 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8248 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8249 against Bleichbacher's attack on RSA.
8250 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8253 *) Updates to the new SSL compression code
8254 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8256 *) Fix so that the version number in the master secret, when passed
8257 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8258 (because the server will not accept higher), that the version number
8259 is 0x03,0x01, not 0x03,0x00
8260 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8262 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8263 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8264 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8267 *) Support for RAW extensions where an arbitrary extension can be
8268 created by including its DER encoding. See apps/openssl.cnf for
8272 *) Make sure latest Perl versions don't interpret some generated C array
8273 code as Perl array code in the crypto/err/err_genc.pl script.
8274 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8276 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8277 not many people have the assembler. Various Win32 compilation fixes and
8278 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8282 *) Modify configure script 'Configure' to automatically create crypto/date.h
8283 file under Win32 and also build pem.h from pem.org. New script
8284 util/mkfiles.pl to create the MINFO file on environments that can't do a
8285 'make files': perl util/mkfiles.pl >MINFO should work.
8288 *) Major rework of DES function declarations, in the pursuit of correctness
8289 and purity. As a result, many evil casts evaporated, and some weirdness,
8290 too. You may find this causes warnings in your code. Zapping your evil
8291 casts will probably fix them. Mostly.
8294 *) Fix for a typo in asn1.h. Bug fix to object creation script
8295 obj_dat.pl. It considered a zero in an object definition to mean
8296 "end of object": none of the objects in objects.h have any zeros
8297 so it wasn't spotted.
8298 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8300 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8301 Masking (CBCM). In the absence of test vectors, the best I have been able
8302 to do is check that the decrypt undoes the encrypt, so far. Send me test
8303 vectors if you have them.
8306 *) Correct calculation of key length for export ciphers (too much space was
8307 allocated for null ciphers). This has not been tested!
8310 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8311 message is now correct (it understands "crypto" and "ssl" on its
8312 command line). There is also now an "update" option. This will update
8313 the util/ssleay.num and util/libeay.num files with any new functions.
8315 perl util/mkdef.pl crypto ssl update
8316 it will update them.
8319 *) Overhauled the Perl interface (perl/*):
8320 - ported BN stuff to OpenSSL's different BN library
8321 - made the perl/ source tree CVS-aware
8322 - renamed the package from SSLeay to OpenSSL (the files still contain
8323 their history because I've copied them in the repository)
8324 - removed obsolete files (the test scripts will be replaced
8325 by better Test::Harness variants in the future)
8326 [Ralf S. Engelschall]
8328 *) First cut for a very conservative source tree cleanup:
8329 1. merge various obsolete readme texts into doc/ssleay.txt
8330 where we collect the old documents and readme texts.
8331 2. remove the first part of files where I'm already sure that we no
8332 longer need them because of three reasons: either they are just temporary
8333 files which were left by Eric or they are preserved original files where
8334 I've verified that the diff is also available in the CVS via "cvs diff
8335 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8336 the crypto/md/ stuff).
8337 [Ralf S. Engelschall]
8339 *) More extension code. Incomplete support for subject and issuer alt
8340 name, issuer and authority key id. Change the i2v function parameters
8341 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8342 what that's for :-) Fix to ASN1 macro which messed up
8343 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8346 *) Preliminary support for ENUMERATED type. This is largely copied from the
8350 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8351 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8353 *) Make sure `make rehash' target really finds the `openssl' program.
8354 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8356 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8357 like to hear about it if this slows down other processors.
8360 *) Add CygWin32 platform information to Configure script.
8361 [Alan Batie <batie@aahz.jf.intel.com>]
8363 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8364 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8366 *) New program nseq to manipulate netscape certificate sequences
8369 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8373 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8374 but the BN code had some problems that would cause failures when
8375 doing certificate verification and some other functions.
8376 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8378 *) Add ASN1 and PEM code to support netscape certificate sequences.
8381 *) Add ASN1 and PEM code to support netscape certificate sequences.
8384 *) Add several PKIX and private extended key usage OIDs.
8387 *) Modify the 'ca' program to handle the new extension code. Modify
8388 openssl.cnf for new extension format, add comments.
8391 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8392 and add a sample to openssl.cnf so req -x509 now adds appropriate
8396 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8397 error code, add initial support to X509_print() and x509 application.
8400 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8401 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8402 stuff is currently isolated and isn't even compiled yet.
8405 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8406 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8407 Removed the versions check from X509 routines when loading extensions:
8408 this allows certain broken certificates that don't set the version
8409 properly to be processed.
8412 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8413 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8414 can still be regenerated with "make depend".
8417 *) Spelling mistake in C version of CAST-128.
8418 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8420 *) Changes to the error generation code. The perl script err-code.pl
8421 now reads in the old error codes and retains the old numbers, only
8422 adding new ones if necessary. It also only changes the .err files if new
8423 codes are added. The makefiles have been modified to only insert errors
8424 when needed (to avoid needlessly modifying header files). This is done
8425 by only inserting errors if the .err file is newer than the auto generated
8426 C file. To rebuild all the error codes from scratch (the old behaviour)
8427 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8428 or delete all the .err files.
8431 *) CAST-128 was incorrectly implemented for short keys. The C version has
8432 been fixed, but is untested. The assembler versions are also fixed, but
8433 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8434 to regenerate it if needed.
8435 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8436 Hagino <itojun@kame.net>]
8438 *) File was opened incorrectly in randfile.c.
8439 [Ulf Möller <ulf@fitug.de>]
8441 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8442 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8443 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8444 al: it's just almost always a UTCTime. Note this patch adds new error
8445 codes so do a "make errors" if there are problems.
8448 *) Correct Linux 1 recognition in config.
8449 [Ulf Möller <ulf@fitug.de>]
8451 *) Remove pointless MD5 hash when using DSA keys in ca.
8452 [Anonymous <nobody@replay.com>]
8454 *) Generate an error if given an empty string as a cert directory. Also
8455 generate an error if handed NULL (previously returned 0 to indicate an
8456 error, but didn't set one).
8457 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8459 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8462 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8463 parameters. This was causing a warning which killed off the Win32 compile.
8466 *) Remove C++ style comments from crypto/bn/bn_local.h.
8467 [Neil Costigan <neil.costigan@celocom.com>]
8469 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8470 based on a text string, looking up short and long names and finally
8471 "dot" format. The "dot" format stuff didn't work. Added new function
8472 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8473 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8474 OID is not part of the table.
8477 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8478 X509_LOOKUP_by_alias().
8481 *) Sort openssl functions by name.
8484 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8485 encryption from sample DSA keys (in case anyone is interested the password
8489 *) Make _all_ *_free functions accept a NULL pointer.
8490 [Frans Heymans <fheymans@isaserver.be>]
8492 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8494 [Anonymous <nobody@replay.com>]
8496 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8497 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8499 *) Don't blow it for numeric -newkey arguments to apps/req.
8500 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8502 *) Temp key "for export" tests were wrong in s3_srvr.c.
8503 [Anonymous <nobody@replay.com>]
8505 *) Add prototype for temp key callback functions
8506 SSL_CTX_set_tmp_{rsa,dh}_callback().
8509 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8510 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8513 *) X509_name_add_entry() freed the wrong thing after an error.
8514 [Arne Ansper <arne@ats.cyber.ee>]
8516 *) rsa_eay.c would attempt to free a NULL context.
8517 [Arne Ansper <arne@ats.cyber.ee>]
8519 *) BIO_s_socket() had a broken should_retry() on Windoze.
8520 [Arne Ansper <arne@ats.cyber.ee>]
8522 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8523 [Arne Ansper <arne@ats.cyber.ee>]
8525 *) Make sure the already existing X509_STORE->depth variable is initialized
8526 in X509_STORE_new(), but document the fact that this variable is still
8527 unused in the certificate verification process.
8528 [Ralf S. Engelschall]
8530 *) Fix the various library and apps files to free up pkeys obtained from
8531 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8534 *) Fix reference counting in X509_PUBKEY_get(). This makes
8535 demos/maurice/example2.c work, amongst others, probably.
8536 [Steve Henson and Ben Laurie]
8538 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8539 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8540 are no longer created. This way we have a single and consistent command
8541 line interface `openssl <command>', similar to `cvs <command>'.
8542 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8544 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8545 BIT STRING wrapper always have zero unused bits.
8548 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8551 *) Make the top-level INSTALL documentation easier to understand.
8554 *) Makefiles updated to exit if an error occurs in a sub-directory
8555 make (including if user presses ^C) [Paul Sutton]
8557 *) Make Montgomery context stuff explicit in RSA data structure.
8560 *) Fix build order of pem and err to allow for generated pem.h.
8563 *) Fix renumbering bug in X509_NAME_delete_entry().
8566 *) Enhanced the err-ins.pl script so it makes the error library number
8567 global and can add a library name. This is needed for external ASN1 and
8568 other error libraries.
8571 *) Fixed sk_insert which never worked properly.
8574 *) Fix ASN1 macros so they can handle indefinite length construted
8575 EXPLICIT tags. Some non standard certificates use these: they can now
8579 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8580 into a single doc/ssleay.txt bundle. This way the information is still
8581 preserved but no longer messes up this directory. Now it's new room for
8582 the new set of documenation files.
8583 [Ralf S. Engelschall]
8585 *) SETs were incorrectly DER encoded. This was a major pain, because they
8586 shared code with SEQUENCEs, which aren't coded the same. This means that
8587 almost everything to do with SETs or SEQUENCEs has either changed name or
8588 number of arguments.
8589 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8591 *) Fix test data to work with the above.
8594 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8595 was already fixed by Eric for 0.9.1 it seems.
8596 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8598 *) Autodetect FreeBSD3.
8601 *) Fix various bugs in Configure. This affects the following platforms:
8605 unixware-2.0-pentium
8609 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8610 before they are needed.
8613 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8617 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8619 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8620 changed SSLeay to OpenSSL in version strings.
8621 [Ralf S. Engelschall]
8623 *) Some fixups to the top-level documents.
8626 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8627 because the symlink to include/ was missing.
8628 [Ralf S. Engelschall]
8630 *) Incorporated the popular no-RSA/DSA-only patches
8631 which allow to compile a RSA-free SSLeay.
8632 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8634 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8635 when "ssleay" is still not found.
8636 [Ralf S. Engelschall]
8638 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8639 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8641 *) Updated the README file.
8642 [Ralf S. Engelschall]
8644 *) Added various .cvsignore files in the CVS repository subdirs
8645 to make a "cvs update" really silent.
8646 [Ralf S. Engelschall]
8648 *) Recompiled the error-definition header files and added
8649 missing symbols to the Win32 linker tables.
8650 [Ralf S. Engelschall]
8652 *) Cleaned up the top-level documents;
8653 o new files: CHANGES and LICENSE
8654 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8655 o merged COPYRIGHT into LICENSE
8656 o removed obsolete TODO file
8657 o renamed MICROSOFT to INSTALL.W32
8658 [Ralf S. Engelschall]
8660 *) Removed dummy files from the 0.9.1b source tree:
8661 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8662 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8663 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8664 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8665 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8666 [Ralf S. Engelschall]
8668 *) Added various platform portability fixes.
8671 *) The Genesis of the OpenSSL rpject:
8672 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8673 Young and Tim J. Hudson created while they were working for C2Net until
8675 [The OpenSSL Project]
8678 Changes between 0.9.0b and 0.9.1b [not released]
8680 *) Updated a few CA certificates under certs/
8683 *) Changed some BIGNUM api stuff.
8686 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8687 DGUX x86, Linux Alpha, etc.
8690 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8691 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8695 *) Add -strparse option to asn1pars program which parses nested
8697 [Dr Stephen Henson <shenson@bigfoot.com>]
8699 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8702 *) DSA fix for "ca" program.
8705 *) Added "-genkey" option to "dsaparam" program.
8708 *) Added RIPE MD160 (rmd160) message digest.
8711 *) Added -a (all) option to "ssleay version" command.
8714 *) Added PLATFORM define which is the id given to Configure.
8717 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8720 *) Extended the ASN.1 parser routines.
8723 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8726 *) Added a BN_CTX to the BN library.
8729 *) Fixed the weak key values in DES library
8732 *) Changed API in EVP library for cipher aliases.
8735 *) Added support for RC2/64bit cipher.
8738 *) Converted the lhash library to the crypto/mem.c functions.
8741 *) Added more recognized ASN.1 object ids.
8744 *) Added more RSA padding checks for SSL/TLS.
8747 *) Added BIO proxy/filter functionality.
8750 *) Added extra_certs to SSL_CTX which can be used
8751 send extra CA certificates to the client in the CA cert chain sending
8752 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8755 *) Now Fortezza is denied in the authentication phase because
8756 this is key exchange mechanism is not supported by SSLeay at all.
8759 *) Additional PKCS1 checks.
8762 *) Support the string "TLSv1" for all TLS v1 ciphers.
8765 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8766 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8769 *) Fixed a few memory leaks.
8772 *) Fixed various code and comment typos.
8775 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8776 bytes sent in the client random.
8777 [Edward Bishop <ebishop@spyglass.com>]