5 Changes between 0.9.8g and 0.9.9 [xx XXX xxxx]
7 *) Not all of this is true any longer.
8 Will have to be updated to reflect all subsequent changes to cryptlib.c.
12 To support arbitrarily-typed thread IDs, deprecate the existing
13 type-specific APIs for a general purpose CRYPTO_THREADID
14 interface. Applications can choose the thread ID
15 callback type it wishes to register, as before;
17 void CRYPTO_set_id_callback(unsigned long (*func)(void));
18 void CRYPTO_set_idptr_callback(void *(*func)(void));
20 but retrieval, copies, and comparisons of thread IDs are via
21 type-independent interfaces;
23 void CRYPTO_THREADID_set(CRYPTO_THREADID *id);
24 void CRYPTO_THREADID_cmp(const CRYPTO_THREADID *id1,
25 const CRYPTO_THREADID *id2);
26 void CRYPTO_THREADID_cpy(CRYPTO_THREADID *dst,
27 const CRYPTO_THREADID *src);
29 Also, for code that needs a thread ID "value" for use in
30 hash-tables or logging, a "hash" is available by;
32 unsigned long CRYPTO_THREADID_hash(const CRYPTO_THREADID *id);
34 This hash value is likely to be the thread ID anyway, but
35 otherwise it will be unique if possible or as collision-free as
36 possible if uniqueness can't be guaranteed on the target
39 The following functions are deprecated;
40 unsigned long (*CRYPTO_get_id_callback(void))(void);
41 unsigned long CRYPTO_thread_id(void);
43 As a consequence of the above, there are similar deprecations of
44 BN_BLINDING functions in favour of CRYPTO_THREADID-based
47 #ifndef OPENSSL_NO_DEPRECATED
48 unsigned long BN_BLINDING_get_thread_id(const BN_BLINDING *);
49 void BN_BLINDING_set_thread_id(BN_BLINDING *, unsigned long);
51 void BN_BLINDING_set_thread(BN_BLINDING *);
52 int BN_BLINDING_cmp_thread(const BN_BLINDING *, const
55 Also, the ERR_remove_state(int pid) API has been deprecated;
57 #ifndef OPENSSL_NO_DEPRECATED
58 void ERR_remove_state(unsigned long pid)
60 void ERR_remove_thread_state(CRYPTO_THREADID *tid);
64 *) Initial support for Cryptographic Message Syntax (aka CMS) based
65 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
66 support for data, signedData, compressedData, digestedData and
67 encryptedData, envelopedData types included. Scripts to check against
68 RFC4134 examples draft and interop and consistency checks of many
69 content types and variants.
72 *) Add options to enc utility to support use of zlib compression BIO.
75 *) Extend mk1mf to support importing of options and assembly language
76 files from Configure script, currently only included in VC-WIN32.
77 The assembly language rules can now optionally generate the source
78 files from the associated perl scripts.
81 *) Implement remaining functionality needed to support GOST ciphersuites.
82 Interop testing has been performed using CryptoPro implementations.
83 [Victor B. Wagner <vitus@cryptocom.ru>]
85 *) s390x assembler pack.
88 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
92 *) Implement Opaque PRF Input TLS extension as specified in
93 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
94 official specification yet and no extension type assignment by
95 IANA exists, this extension (for now) will have to be explicitly
96 enabled when building OpenSSL by providing the extension number
97 to use. For example, specify an option
99 -DTLSEXT_TYPE_opaque_prf_input=0x9527
101 to the "config" or "Configure" script to enable the extension,
102 assuming extension number 0x9527 (which is a completely arbitrary
103 and unofficial assignment based on the MD5 hash of the Internet
104 Draft). Note that by doing so, you potentially lose
105 interoperability with other TLS implementations since these might
106 be using the same extension number for other purposes.
108 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
109 opaque PRF input value to use in the handshake. This will create
110 an interal copy of the length-'len' string at 'src', and will
111 return non-zero for success.
113 To get more control and flexibility, provide a callback function
116 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
117 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
121 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
124 Callback function 'cb' will be called in handshakes, and is
125 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
126 Argument 'arg' is for application purposes (the value as given to
127 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
128 be provided to the callback function). The callback function
129 has to return non-zero to report success: usually 1 to use opaque
130 PRF input just if possible, or 2 to enforce use of the opaque PRF
131 input. In the latter case, the library will abort the handshake
132 if opaque PRF input is not successfully negotiated.
134 Arguments 'peerinput' and 'len' given to the callback function
135 will always be NULL and 0 in the case of a client. A server will
136 see the client's opaque PRF input through these variables if
137 available (NULL and 0 otherwise). Note that if the server
138 provides an opaque PRF input, the length must be the same as the
139 length of the client's opaque PRF input.
141 Note that the callback function will only be called when creating
142 a new session (session resumption can resume whatever was
143 previously negotiated), and will not be called in SSL 2.0
144 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
145 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
146 for applications that need to enforce opaque PRF input.
150 *) Update ssl code to support digests other than SHA1+MD5 for handshake
153 [Victor B. Wagner <vitus@cryptocom.ru>]
155 *) Add RFC4507 support to OpenSSL. This includes the corrections in
156 RFC4507bis. The encrypted ticket format is an encrypted encoded
157 SSL_SESSION structure, that way new session features are automatically
160 If a client application caches session in an SSL_SESSION structure
161 support is transparent because tickets are now stored in the encoded
164 The SSL_CTX structure automatically generates keys for ticket
165 protection in servers so again support should be possible
166 with no application modification.
168 If a client or server wishes to disable RFC4507 support then the option
169 SSL_OP_NO_TICKET can be set.
171 Add a TLS extension debugging callback to allow the contents of any client
172 or server extensions to be examined.
174 This work was sponsored by Google.
177 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
178 OpenSSL should now compile cleanly on gcc 4.2
179 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
181 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
182 support including streaming MAC support: this is required for GOST
184 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
186 *) Add option -stream to use PKCS#7 streaming in smime utility. New
187 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
188 to output in BER and PEM format.
191 *) Experimental support for use of HMAC via EVP_PKEY interface. This
192 allows HMAC to be handled via the EVP_DigestSign*() interface. The
193 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
194 ENGINE support for HMAC keys which are unextractable. New -mac and
195 -macopt options to dgst utility.
198 *) New option -sigopt to dgst utility. Update dgst to use
199 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
200 alternative signing paramaters such as X9.31 or PSS in the dgst
204 *) Change ssl_cipher_apply_rule(), the internal function that does
205 the work each time a ciphersuite string requests enabling
206 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
207 removing ("!foo+bar") a class of ciphersuites: Now it maintains
208 the order of disabled ciphersuites such that those ciphersuites
209 that most recently went from enabled to disabled not only stay
210 in order with respect to each other, but also have higher priority
211 than other disabled ciphersuites the next time ciphersuites are
214 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
215 the same ciphersuites as with "HIGH" alone, but in a specific
216 order where the PSK ciphersuites come first (since they are the
217 most recently disabled ciphersuites when "HIGH" is parsed).
219 Also, change ssl_create_cipher_list() (using this new
220 funcionality) such that between otherwise identical
221 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
225 *) Change ssl_create_cipher_list() so that it automatically
226 arranges the ciphersuites in reasonable order before starting
227 to process the rule string. Thus, the definition for "DEFAULT"
228 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
229 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
230 This makes it much easier to arrive at a reasonable default order
231 in applications for which anonymous ciphers are OK (meaning
232 that you can't actually use DEFAULT).
233 [Bodo Moeller; suggested by Victor Duchovni]
235 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
236 processing) into multiple integers instead of setting
237 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
238 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
239 (These masks as well as the individual bit definitions are hidden
240 away into the non-exported interface ssl/ssl_locl.h, so this
241 change to the definition of the SSL_CIPHER structure shouldn't
242 affect applications.) This give us more bits for each of these
243 categories, so there is no longer a need to coagulate AES128 and
244 AES256 into a single algorithm bit, and to coagulate Camellia128
245 and Camellia256 into a single algorithm bit, which has led to all
248 Thus, among other things, the kludge introduced in 0.9.7m and
249 0.9.8e for masking out AES256 independently of AES128 or masking
250 out Camellia256 independently of AES256 is not needed here in 0.9.9.
252 With the change, we also introduce new ciphersuite aliases that
253 so far were missing: "AES128", "AES256", "CAMELLIA128", and
257 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
258 Use the leftmost N bytes of the signature input if the input is
259 larger than the prime q (with N being the size in bytes of q).
262 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
263 it yet and it is largely untested.
266 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
269 *) Initial incomplete changes to avoid need for function casts in OpenSSL
270 some compilers (gcc 4.2 and later) reject their use. Safestack is
271 reimplemented. Update ASN1 to avoid use of legacy functions.
274 *) Win32/64 targets are linked with Winsock2.
277 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
278 to external functions. This can be used to increase CRL handling
279 efficiency especially when CRLs are very large by (for example) storing
280 the CRL revoked certificates in a database.
283 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
284 new CRLs added to a directory can be used. New command line option
285 -verify_return_error to s_client and s_server. This causes real errors
286 to be returned by the verify callback instead of carrying on no matter
287 what. This reflects the way a "real world" verify callback would behave.
290 *) GOST engine, supporting several GOST algorithms and public key formats.
291 Kindly donated by Cryptocom.
294 *) Partial support for Issuing Distribution Point CRL extension. CRLs
295 partitioned by DP are handled but no indirect CRL or reason partitioning
296 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
297 selected via a scoring technique which handles IDP and AKID in CRLs.
300 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
301 will ultimately be used for all verify operations: this will remove the
302 X509_STORE dependency on certificate verification and allow alternative
303 lookup methods. X509_STORE based implementations of these two callbacks.
306 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
307 Modify get_crl() to find a valid (unexpired) CRL if possible.
310 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
311 this would be called X509_CRL_cmp() but that name is already used by
312 a function that just compares CRL issuer names. Cache several CRL
313 extensions in X509_CRL structure and cache CRLDP in X509.
316 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
317 this maps equivalent X509_NAME structures into a consistent structure.
318 Name comparison can then be performed rapidly using memcmp().
321 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
325 *) Allow digests to supply their own micalg string for S/MIME type using
326 the ctrl EVP_MD_CTRL_MICALG.
329 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
330 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
331 ctrl. It can then customise the structure before and/or after signing
335 *) New function OBJ_add_sigid() to allow application defined signature OIDs
336 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
337 to free up any added signature OIDs.
340 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
341 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
342 digest and cipher tables. New options added to openssl utility:
343 list-message-digest-algorithms and list-cipher-algorithms.
346 *) In addition to the numerical (unsigned long) thread ID, provide
347 for a pointer (void *) thread ID. This helps accomodate systems
348 that do not provide an unsigned long thread ID. OpenSSL assumes
349 it is in the same thread iff both the numerical and the pointer
350 thread ID agree; so applications are just required to define one
351 of them appropriately (e.g., by using a pointer to a per-thread
352 memory object malloc()ed by the application for the pointer-type
353 thread ID). Exactly analoguous to the existing functions
355 void CRYPTO_set_id_callback(unsigned long (*func)(void));
356 unsigned long (*CRYPTO_get_id_callback(void))(void);
357 unsigned long CRYPTO_thread_id(void);
359 we now have additional functions
361 void CRYPTO_set_idptr_callback(void *(*func)(void));
362 void *(*CRYPTO_get_idptr_callback(void))(void);
363 void *CRYPTO_thread_idptr(void);
365 also in <openssl/crypto.h>. The default value for
366 CRYPTO_thread_idptr() if the application has not provided its own
370 -- NOTE -- this change has been reverted and replaced with a
371 type-independent wrapper (ie. applications do not have to check
372 two type-specific thread ID representations as implied in this
373 change note). However, the "idptr" callback form described here
374 can still be registered. Please see the more recent CHANGES note
375 regarding CRYPTO_THREADID. [Geoff Thorpe]
378 *) Change the array representation of binary polynomials: the list
379 of degrees of non-zero coefficients is now terminated with -1.
380 Previously it was terminated with 0, which was also part of the
381 value; thus, the array representation was not applicable to
382 polynomials where t^0 has coefficient zero. This change makes
383 the array representation useful in a more general context.
386 *) Various modifications and fixes to SSL/TLS cipher string
387 handling. For ECC, the code now distinguishes between fixed ECDH
388 with RSA certificates on the one hand and with ECDSA certificates
389 on the other hand, since these are separate ciphersuites. The
390 unused code for Fortezza ciphersuites has been removed.
392 For consistency with EDH, ephemeral ECDH is now called "EECDH"
393 (not "ECDHE"). For consistency with the code for DH
394 certificates, use of ECDH certificates is now considered ECDH
395 authentication, not RSA or ECDSA authentication (the latter is
396 merely the CA's signing algorithm and not actively used in the
399 The temporary ciphersuite alias "ECCdraft" is no longer
400 available, and ECC ciphersuites are no longer excluded from "ALL"
401 and "DEFAULT". The following aliases now exist for RFC 4492
402 ciphersuites, most of these by analogy with the DH case:
404 kECDHr - ECDH cert, signed with RSA
405 kECDHe - ECDH cert, signed with ECDSA
406 kECDH - ECDH cert (signed with either RSA or ECDSA)
407 kEECDH - ephemeral ECDH
408 ECDH - ECDH cert or ephemeral ECDH
414 AECDH - anonymous ECDH
415 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
419 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
420 Use correct micalg parameters depending on digest(s) in signed message.
423 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
424 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
427 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
428 an engine to register a method. Add ENGINE lookups for methods and
429 functional reference processing.
432 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
433 EVP_{Sign,Verify}* which allow an application to customise the signature
437 *) New -resign option to smime utility. This adds one or more signers
438 to an existing PKCS#7 signedData structure. Also -md option to use an
439 alternative message digest algorithm for signing.
442 *) Tidy up PKCS#7 routines and add new functions to make it easier to
443 create PKCS7 structures containing multiple signers. Update smime
444 application to support multiple signers.
447 *) New -macalg option to pkcs12 utility to allow setting of an alternative
451 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
452 Reorganize PBE internals to lookup from a static table using NIDs,
453 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
454 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
455 PRF which will be automatically used with PBES2.
458 *) Replace the algorithm specific calls to generate keys in "req" with the
462 *) Update PKCS#7 enveloped data routines to use new API. This is now
463 supported by any public key method supporting the encrypt operation. A
464 ctrl is added to allow the public key algorithm to examine or modify
465 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
469 *) Add a ctrl to asn1 method to allow a public key algorithm to express
470 a default digest type to use. In most cases this will be SHA1 but some
471 algorithms (such as GOST) need to specify an alternative digest. The
472 return value indicates how strong the prefernce is 1 means optional and
473 2 is mandatory (that is it is the only supported type). Modify
474 ASN1_item_sign() to accept a NULL digest argument to indicate it should
475 use the default md. Update openssl utilities to use the default digest
476 type for signing if it is not explicitly indicated.
479 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
480 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
481 signing method from the key type. This effectively removes the link
482 between digests and public key types.
485 *) Add an OID cross reference table and utility functions. Its purpose is to
486 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
487 rsaEncryption. This will allow some of the algorithm specific hackery
488 needed to use the correct OID to be removed.
491 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
492 structures for PKCS7_sign(). They are now set up by the relevant public
496 *) Add provisional EC pkey method with support for ECDSA and ECDH.
499 *) Add support for key derivation (agreement) in the API, DH method and
503 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
504 public and private key formats. As a side effect these add additional
505 command line functionality not previously available: DSA signatures can be
506 generated and verified using pkeyutl and DH key support and generation in
511 [Oliver Tappe <zooey@hirschkaefer.de>]
513 *) New make target "install_html_docs" installs HTML renditions of the
515 [Oliver Tappe <zooey@hirschkaefer.de>]
517 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
518 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
519 support key and parameter generation and add initial key generation
520 functionality for RSA.
523 *) Add functions for main EVP_PKEY_method operations. The undocumented
524 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
525 EVP_PKEY_{encrypt,decrypt}_old.
528 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
529 key API, doesn't do much yet.
532 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
533 public key algorithms. New option to openssl utility:
534 "list-public-key-algorithms" to print out info.
537 *) Implement the Supported Elliptic Curves Extension for
538 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
541 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
542 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
545 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
546 utilities such as rsa, dsa, dsaparam etc except they process any key
550 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
551 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
552 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
556 *) Initial support for pluggable public key ASN1.
557 De-spaghettify the public key ASN1 handling. Move public and private
558 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
559 algorithm specific handling to a single module within the relevant
560 algorithm directory. Add functions to allow (near) opaque processing
561 of public and private key structures.
564 *) Implement the Supported Point Formats Extension for
565 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
568 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
569 for the psk identity [hint] and the psk callback functions to the
570 SSL_SESSION, SSL and SSL_CTX structure.
573 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
577 SSL_CTX_use_psk_identity_hint
578 SSL_get_psk_identity_hint
580 SSL_use_psk_identity_hint
582 [Mika Kousa and Pasi Eronen of Nokia Corporation]
584 *) Add RFC 3161 compliant time stamp request creation, response generation
585 and response verification functionality.
586 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
588 *) Add initial support for TLS extensions, specifically for the server_name
589 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
590 have new members for a host name. The SSL data structure has an
591 additional member SSL_CTX *initial_ctx so that new sessions can be
592 stored in that context to allow for session resumption, even after the
593 SSL has been switched to a new SSL_CTX in reaction to a client's
594 server_name extension.
596 New functions (subject to change):
599 SSL_get_servername_type()
602 New CTRL codes and macros (subject to change):
604 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
605 - SSL_CTX_set_tlsext_servername_callback()
606 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
607 - SSL_CTX_set_tlsext_servername_arg()
608 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
610 openssl s_client has a new '-servername ...' option.
612 openssl s_server has new options '-servername_host ...', '-cert2 ...',
613 '-key2 ...', '-servername_fatal' (subject to change). This allows
614 testing the HostName extension for a specific single host name ('-cert'
615 and '-key' remain fallbacks for handshakes without HostName
616 negotiation). If the unrecogninzed_name alert has to be sent, this by
617 default is a warning; it becomes fatal with the '-servername_fatal'
620 [Peter Sylvester, Remy Allais, Christophe Renou]
622 *) Whirlpool hash implementation is added.
625 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
626 bn(64,32). Because of instruction set limitations it doesn't have
627 any negative impact on performance. This was done mostly in order
628 to make it possible to share assembler modules, such as bn_mul_mont
629 implementations, between 32- and 64-bit builds without hassle.
632 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
633 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
637 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
638 dedicated Montgomery multiplication procedure, is introduced.
639 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
640 "64-bit" performance on certain 32-bit targets.
643 *) New option SSL_OP_NO_COMP to disable use of compression selectively
644 in SSL structures. New SSL ctrl to set maximum send fragment size.
645 Save memory by seeting the I/O buffer sizes dynamically instead of
646 using the maximum available value.
649 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
650 in addition to the text details.
653 *) Very, very preliminary EXPERIMENTAL support for printing of general
654 ASN1 structures. This currently produces rather ugly output and doesn't
655 handle several customised structures at all.
658 *) Integrated support for PVK file format and some related formats such
659 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
660 these in the 'rsa' and 'dsa' utilities.
663 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
666 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
667 place for the (very old) "NETSCAPE" format certificates which are now
668 handled using new ASN1 code equivalents.
671 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
672 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
673 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
676 *) Modify CRL distribution points extension code to print out previously
677 unsupported fields. Enhance extension setting code to allow setting of
681 *) Add print and set support for Issuing Distribution Point CRL extension.
684 *) Change 'Configure' script to enable Camellia by default.
687 Changes between 0.9.8g and 0.9.8h [xx XXX xxxx]
689 *) Add TLS session ticket callback. This allows an application to set
690 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
691 values. This is useful for key rollover for example where several key
692 sets may exist with different names.
695 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
696 This was broken until now in 0.9.8 releases, such that the only way
697 a registered ENGINE could be used (assuming it initialises
698 successfully on the host) was to explicitly set it as the default
699 for the relevant algorithms. This is in contradiction with 0.9.7
700 behaviour and the documentation. With this fix, when an ENGINE is
701 registered into a given algorithm's table of implementations, the
702 'uptodate' flag is reset so that auto-discovery will be used next
703 time a new context for that algorithm attempts to select an
705 [Ian Lister (tweaked by Geoff Thorpe)]
707 *) Update the GMP engine glue to do direct copies between BIGNUM and
708 mpz_t when openssl and GMP use the same limb size. Otherwise the
709 existing "conversion via a text string export" trick is still used.
710 [Paul Sheer <paulsheer@gmail.com>, Geoff Thorpe]
712 *) Zlib compression BIO. This is a filter BIO which compressed and
713 uncompresses any data passed through it.
716 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
717 RFC3394 compatible AES key wrapping.
720 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
721 sets string data without copying. X509_ALGOR_set0() and
722 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
723 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
724 from an X509_ATTRIBUTE structure optionally checking it occurs only
725 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
729 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
730 to get the expected BN_FLG_CONSTTIME behavior.
731 [Bodo Moeller (Google)]
735 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
736 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
737 - added some more tests to do_tests.pl
738 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
739 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
740 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
741 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
742 - various changes to netware.pl to enable gcc-cross builds on Win32
744 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
745 - various changes to fix missing prototype warnings
746 - fixed x86nasm.pl to create correct asm files for NASM COFF output
747 - added AES, WHIRLPOOL and CPUID assembler code to build files
748 - added missing AES assembler make rules to mk1mf.pl
749 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
750 [Guenter Knauf <eflash@gmx.net>]
752 *) Implement certificate status request TLS extension defined in RFC3546.
753 A client can set the appropriate parameters and receive the encoded
754 OCSP response via a callback. A server can query the supplied parameters
755 and set the encoded OCSP response in the callback. Add simplified examples
756 to s_client and s_server.
759 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
762 + Binary incompatibility of ssl_ctx_st structure
763 + DTLS interoperation with non-compliant servers
764 + Don't call get_session_cb() without proposed session
765 + Fix ia64 assembler code
766 [Andy Polyakov, Steve Henson]
768 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
770 *) DTLS Handshake overhaul. There were longstanding issues with
771 OpenSSL DTLS implementation, which were making it impossible for
772 RFC 4347 compliant client to communicate with OpenSSL server.
773 Unfortunately just fixing these incompatibilities would "cut off"
774 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
775 server keeps tolerating non RFC compliant syntax. The opposite is
776 not true, 0.9.8f client can not communicate with earlier server.
777 This update even addresses CVE-2007-4995.
780 *) Changes to avoid need for function casts in OpenSSL: some compilers
781 (gcc 4.2 and later) reject their use.
782 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
785 *) Add RFC4507 support to OpenSSL. This includes the corrections in
786 RFC4507bis. The encrypted ticket format is an encrypted encoded
787 SSL_SESSION structure, that way new session features are automatically
790 If a client application caches session in an SSL_SESSION structure
791 support is transparent because tickets are now stored in the encoded
794 The SSL_CTX structure automatically generates keys for ticket
795 protection in servers so again support should be possible
796 with no application modification.
798 If a client or server wishes to disable RFC4507 support then the option
799 SSL_OP_NO_TICKET can be set.
801 Add a TLS extension debugging callback to allow the contents of any client
802 or server extensions to be examined.
804 This work was sponsored by Google.
807 *) Add initial support for TLS extensions, specifically for the server_name
808 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
809 have new members for a host name. The SSL data structure has an
810 additional member SSL_CTX *initial_ctx so that new sessions can be
811 stored in that context to allow for session resumption, even after the
812 SSL has been switched to a new SSL_CTX in reaction to a client's
813 server_name extension.
815 New functions (subject to change):
818 SSL_get_servername_type()
821 New CTRL codes and macros (subject to change):
823 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
824 - SSL_CTX_set_tlsext_servername_callback()
825 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
826 - SSL_CTX_set_tlsext_servername_arg()
827 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
829 openssl s_client has a new '-servername ...' option.
831 openssl s_server has new options '-servername_host ...', '-cert2 ...',
832 '-key2 ...', '-servername_fatal' (subject to change). This allows
833 testing the HostName extension for a specific single host name ('-cert'
834 and '-key' remain fallbacks for handshakes without HostName
835 negotiation). If the unrecogninzed_name alert has to be sent, this by
836 default is a warning; it becomes fatal with the '-servername_fatal'
839 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
841 *) Add AES and SSE2 assembly language support to VC++ build.
844 *) Mitigate attack on final subtraction in Montgomery reduction.
847 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
848 (which previously caused an internal error).
851 *) Squeeze another 10% out of IGE mode when in != out.
854 *) AES IGE mode speedup.
855 [Dean Gaudet (Google)]
857 *) Add the Korean symmetric 128-bit cipher SEED (see
858 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
859 add SEED ciphersuites from RFC 4162:
861 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
862 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
863 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
864 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
866 To minimize changes between patchlevels in the OpenSSL 0.9.8
867 series, SEED remains excluded from compilation unless OpenSSL
868 is configured with 'enable-seed'.
871 *) Mitigate branch prediction attacks, which can be practical if a
872 single processor is shared, allowing a spy process to extract
873 information. For detailed background information, see
874 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
875 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
876 and Necessary Software Countermeasures"). The core of the change
877 are new versions BN_div_no_branch() and
878 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
879 respectively, which are slower, but avoid the security-relevant
880 conditional branches. These are automatically called by BN_div()
881 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
882 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
883 remove a conditional branch.
885 BN_FLG_CONSTTIME is the new name for the previous
886 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
887 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
888 in the exponent causes BN_mod_exp_mont() to use the alternative
889 implementation in BN_mod_exp_mont_consttime().) The old name
890 remains as a deprecated alias.
892 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
893 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
894 constant-time implementations for more than just exponentiation.
895 Here too the old name is kept as a deprecated alias.
897 BN_BLINDING_new() will now use BN_dup() for the modulus so that
898 the BN_BLINDING structure gets an independent copy of the
899 modulus. This means that the previous "BIGNUM *m" argument to
900 BN_BLINDING_new() and to BN_BLINDING_create_param() now
901 essentially becomes "const BIGNUM *m", although we can't actually
902 change this in the header file before 0.9.9. It allows
903 RSA_setup_blinding() to use BN_with_flags() on the modulus to
904 enable BN_FLG_CONSTTIME.
906 [Matthew D Wood (Intel Corp)]
908 *) In the SSL/TLS server implementation, be strict about session ID
909 context matching (which matters if an application uses a single
910 external cache for different purposes). Previously,
911 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
912 set. This did ensure strict client verification, but meant that,
913 with applications using a single external cache for quite
914 different requirements, clients could circumvent ciphersuite
915 restrictions for a given session ID context by starting a session
916 in a different context.
919 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
920 a ciphersuite string such as "DEFAULT:RSA" cannot enable
921 authentication-only ciphersuites.
924 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
926 *) Since AES128 and AES256 (and similarly Camellia128 and
927 Camellia256) share a single mask bit in the logic of
928 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
929 kludge to work properly if AES128 is available and AES256 isn't
930 (or if Camellia128 is available and Camellia256 isn't).
933 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
934 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
935 When a point or a seed is encoded in a BIT STRING, we need to
936 prevent the removal of trailing zero bits to get the proper DER
937 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
938 of a NamedBitList, for which trailing 0 bits need to be removed.)
941 *) Have SSL/TLS server implementation tolerate "mismatched" record
942 protocol version while receiving ClientHello even if the
943 ClientHello is fragmented. (The server can't insist on the
944 particular protocol version it has chosen before the ServerHello
945 message has informed the client about his choice.)
948 *) Add RFC 3779 support.
949 [Rob Austein for ARIN, Ben Laurie]
951 *) Load error codes if they are not already present instead of using a
952 static variable. This allows them to be cleanly unloaded and reloaded.
953 Improve header file function name parsing.
956 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
957 or CAPABILITY handshake as required by RFCs.
960 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
962 *) Introduce limits to prevent malicious keys being able to
963 cause a denial of service. (CVE-2006-2940)
964 [Steve Henson, Bodo Moeller]
966 *) Fix ASN.1 parsing of certain invalid structures that can result
967 in a denial of service. (CVE-2006-2937) [Steve Henson]
969 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
970 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
972 *) Fix SSL client code which could crash if connecting to a
973 malicious SSLv2 server. (CVE-2006-4343)
974 [Tavis Ormandy and Will Drewry, Google Security Team]
976 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
977 match only those. Before that, "AES256-SHA" would be interpreted
978 as a pattern and match "AES128-SHA" too (since AES128-SHA got
979 the same strength classification in 0.9.7h) as we currently only
980 have a single AES bit in the ciphersuite description bitmap.
981 That change, however, also applied to ciphersuite strings such as
982 "RC4-MD5" that intentionally matched multiple ciphersuites --
983 namely, SSL 2.0 ciphersuites in addition to the more common ones
984 from SSL 3.0/TLS 1.0.
986 So we change the selection algorithm again: Naming an explicit
987 ciphersuite selects this one ciphersuite, and any other similar
988 ciphersuite (same bitmap) from *other* protocol versions.
989 Thus, "RC4-MD5" again will properly select both the SSL 2.0
990 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
992 Since SSL 2.0 does not have any ciphersuites for which the
993 128/256 bit distinction would be relevant, this works for now.
994 The proper fix will be to use different bits for AES128 and
995 AES256, which would have avoided the problems from the beginning;
996 however, bits are scarce, so we can only do this in a new release
997 (not just a patchlevel) when we can change the SSL_CIPHER
998 definition to split the single 'unsigned long mask' bitmap into
999 multiple values to extend the available space.
1003 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1005 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1006 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1008 *) Add AES IGE and biIGE modes.
1011 *) Change the Unix randomness entropy gathering to use poll() when
1012 possible instead of select(), since the latter has some
1013 undesirable limitations.
1014 [Darryl Miles via Richard Levitte and Bodo Moeller]
1016 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1017 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1018 cannot be implicitly activated as part of, e.g., the "AES" alias.
1019 However, please upgrade to OpenSSL 0.9.9[-dev] for
1020 non-experimental use of the ECC ciphersuites to get TLS extension
1021 support, which is required for curve and point format negotiation
1022 to avoid potential handshake problems.
1025 *) Disable rogue ciphersuites:
1027 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1028 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1029 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1031 The latter two were purportedly from
1032 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1035 Also deactivate the remaining ciphersuites from
1036 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1037 unofficial, and the ID has long expired.
1040 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1041 dual-core machines) and other potential thread-safety issues.
1044 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1045 versions), which is now available for royalty-free use
1046 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1047 Also, add Camellia TLS ciphersuites from RFC 4132.
1049 To minimize changes between patchlevels in the OpenSSL 0.9.8
1050 series, Camellia remains excluded from compilation unless OpenSSL
1051 is configured with 'enable-camellia'.
1054 *) Disable the padding bug check when compression is in use. The padding
1055 bug check assumes the first packet is of even length, this is not
1056 necessarily true if compresssion is enabled and can result in false
1057 positives causing handshake failure. The actual bug test is ancient
1058 code so it is hoped that implementations will either have fixed it by
1059 now or any which still have the bug do not support compression.
1062 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1064 *) When applying a cipher rule check to see if string match is an explicit
1065 cipher suite and only match that one cipher suite if it is.
1068 *) Link in manifests for VC++ if needed.
1069 [Austin Ziegler <halostatue@gmail.com>]
1071 *) Update support for ECC-based TLS ciphersuites according to
1072 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1073 TLS extensions, which are supported starting with the 0.9.9
1074 branch, not in the OpenSSL 0.9.8 branch).
1077 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1078 opaque EVP_CIPHER_CTX handling.
1081 *) Fixes and enhancements to zlib compression code. We now only use
1082 "zlib1.dll" and use the default __cdecl calling convention on Win32
1083 to conform with the standards mentioned here:
1084 http://www.zlib.net/DLL_FAQ.txt
1085 Static zlib linking now works on Windows and the new --with-zlib-include
1086 --with-zlib-lib options to Configure can be used to supply the location
1087 of the headers and library. Gracefully handle case where zlib library
1091 *) Several fixes and enhancements to the OID generation code. The old code
1092 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1093 handle numbers larger than ULONG_MAX, truncated printing and had a
1094 non standard OBJ_obj2txt() behaviour.
1097 *) Add support for building of engines under engine/ as shared libraries
1098 under VC++ build system.
1101 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1102 Hopefully, we will not see any false combination of paths any more.
1105 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1107 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1108 (part of SSL_OP_ALL). This option used to disable the
1109 countermeasure against man-in-the-middle protocol-version
1110 rollback in the SSL 2.0 server implementation, which is a bad
1111 idea. (CVE-2005-2969)
1113 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1114 for Information Security, National Institute of Advanced Industrial
1115 Science and Technology [AIST], Japan)]
1117 *) Add two function to clear and return the verify parameter flags.
1120 *) Keep cipherlists sorted in the source instead of sorting them at
1121 runtime, thus removing the need for a lock.
1124 *) Avoid some small subgroup attacks in Diffie-Hellman.
1125 [Nick Mathewson and Ben Laurie]
1127 *) Add functions for well-known primes.
1130 *) Extended Windows CE support.
1131 [Satoshi Nakamura and Andy Polyakov]
1133 *) Initialize SSL_METHOD structures at compile time instead of during
1134 runtime, thus removing the need for a lock.
1137 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1138 attempting to decrypt each encrypted key in turn. Add support to
1142 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1144 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1147 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1150 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1151 key into the same file any more.
1154 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1157 *) Add -utf8 command line and config file option to 'ca'.
1158 [Stefan <stf@udoma.org]
1160 *) Removed the macro des_crypt(), as it seems to conflict with some
1161 libraries. Use DES_crypt().
1164 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1165 involves renaming the source and generated shared-libs for
1166 both. The engines will accept the corrected or legacy ids
1167 ('ncipher' and '4758_cca' respectively) when binding. NB,
1168 this only applies when building 'shared'.
1169 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1171 *) Add attribute functions to EVP_PKEY structure. Modify
1172 PKCS12_create() to recognize a CSP name attribute and
1173 use it. Make -CSP option work again in pkcs12 utility.
1176 *) Add new functionality to the bn blinding code:
1177 - automatic re-creation of the BN_BLINDING parameters after
1178 a fixed number of uses (currently 32)
1179 - add new function for parameter creation
1180 - introduce flags to control the update behaviour of the
1181 BN_BLINDING parameters
1182 - hide BN_BLINDING structure
1183 Add a second BN_BLINDING slot to the RSA structure to improve
1184 performance when a single RSA object is shared among several
1188 *) Add support for DTLS.
1189 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1191 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1192 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1195 *) Remove buggy and incompletet DH cert support from
1196 ssl/ssl_rsa.c and ssl/s3_both.c
1199 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1200 the apps/openssl applications.
1203 *) Compile clean with "-Wall -Wmissing-prototypes
1204 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1205 DEBUG_SAFESTACK must also be set.
1208 *) Change ./Configure so that certain algorithms can be disabled by default.
1209 The new counterpiece to "no-xxx" is "enable-xxx".
1211 The patented RC5 and MDC2 algorithms will now be disabled unless
1212 "enable-rc5" and "enable-mdc2", respectively, are specified.
1214 (IDEA remains enabled despite being patented. This is because IDEA
1215 is frequently required for interoperability, and there is no license
1216 fee for non-commercial use. As before, "no-idea" can be used to
1217 avoid this algorithm.)
1221 *) Add processing of proxy certificates (see RFC 3820). This work was
1222 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1223 EGEE (Enabling Grids for E-science in Europe).
1226 *) RC4 performance overhaul on modern architectures/implementations, such
1227 as Intel P4, IA-64 and AMD64.
1230 *) New utility extract-section.pl. This can be used specify an alternative
1231 section number in a pod file instead of having to treat each file as
1232 a separate case in Makefile. This can be done by adding two lines to the
1235 =for comment openssl_section:XXX
1237 The blank line is mandatory.
1241 *) New arguments -certform, -keyform and -pass for s_client and s_server
1242 to allow alternative format key and certificate files and passphrase
1246 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1247 update associated structures and add various utility functions.
1249 Add new policy related verify parameters, include policy checking in
1250 standard verify code. Enhance 'smime' application with extra parameters
1251 to support policy checking and print out.
1254 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1255 Nehemiah processors. These extensions support AES encryption in hardware
1256 as well as RNG (though RNG support is currently disabled).
1257 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1259 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1262 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1263 [Andy Polyakov and a number of other people]
1265 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1266 implementation contributed by IBM.
1267 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1269 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1270 exponent rather than 'unsigned long'. There is a corresponding change to
1271 the new 'rsa_keygen' element of the RSA_METHOD structure.
1272 [Jelte Jansen, Geoff Thorpe]
1274 *) Functionality for creating the initial serial number file is now
1275 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1277 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1278 number file to 1, which is bound to cause problems. To avoid
1279 the problems while respecting compatibility between different 0.9.7
1280 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1281 CA.pl for serial number initialization. With the new release 0.9.8,
1282 we can fix the problem directly in the 'ca' utility.)
1285 *) Reduced header interdepencies by declaring more opaque objects in
1286 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1287 give fewer recursive includes, which could break lazy source code - so
1288 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1289 developers should define this symbol when building and using openssl to
1290 ensure they track the recommended behaviour, interfaces, [etc], but
1291 backwards-compatible behaviour prevails when this isn't defined.
1294 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1297 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1298 This will generate a random key of the appropriate length based on the
1299 cipher context. The EVP_CIPHER can provide its own random key generation
1300 routine to support keys of a specific form. This is used in the des and
1301 3des routines to generate a key of the correct parity. Update S/MIME
1302 code to use new functions and hence generate correct parity DES keys.
1303 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1304 valid (weak or incorrect parity).
1307 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1308 as looking them up. This is useful when the verified structure may contain
1309 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1310 present unless the new PKCS7_NO_CRL flag is asserted.
1313 *) Extend ASN1 oid configuration module. It now additionally accepts the
1316 shortName = some long name, 1.2.3.4
1319 *) Reimplemented the BN_CTX implementation. There is now no more static
1320 limitation on the number of variables it can handle nor the depth of the
1321 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1322 information can now expand as required, and rather than having a single
1323 static array of bignums, BN_CTX now uses a linked-list of such arrays
1324 allowing it to expand on demand whilst maintaining the usefulness of
1325 BN_CTX's "bundling".
1328 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1329 to allow all RSA operations to function using a single BN_CTX.
1332 *) Preliminary support for certificate policy evaluation and checking. This
1333 is initially intended to pass the tests outlined in "Conformance Testing
1334 of Relying Party Client Certificate Path Processing Logic" v1.07.
1337 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1338 remained unused and not that useful. A variety of other little bignum
1339 tweaks and fixes have also been made continuing on from the audit (see
1343 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1344 associated ASN1, EVP and SSL functions and old ASN1 macros.
1347 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1348 and this should never fail. So the return value from the use of
1349 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1350 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1353 *) BN_CTX_get() should return zero-valued bignums, providing the same
1354 initialised value as BN_new().
1355 [Geoff Thorpe, suggested by Ulf Möller]
1357 *) Support for inhibitAnyPolicy certificate extension.
1360 *) An audit of the BIGNUM code is underway, for which debugging code is
1361 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1362 is considered valid when processing BIGNUMs, and causes execution to
1363 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1364 further steps are taken to deliberately pollute unused data in BIGNUM
1365 structures to try and expose faulty code further on. For now, openssl will
1366 (in its default mode of operation) continue to tolerate the inconsistent
1367 forms that it has tolerated in the past, but authors and packagers should
1368 consider trying openssl and their own applications when compiled with
1369 these debugging symbols defined. It will help highlight potential bugs in
1370 their own code, and will improve the test coverage for OpenSSL itself. At
1371 some point, these tighter rules will become openssl's default to improve
1372 maintainability, though the assert()s and other overheads will remain only
1373 in debugging configurations. See bn.h for more details.
1374 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1376 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1377 that can only be obtained through BN_CTX_new() (which implicitly
1378 initialises it). The presence of this function only made it possible
1379 to overwrite an existing structure (and cause memory leaks).
1382 *) Because of the callback-based approach for implementing LHASH as a
1383 template type, lh_insert() adds opaque objects to hash-tables and
1384 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1385 to clean up those corresponding objects before destroying the hash table
1386 (and losing the object pointers). So some over-zealous constifications in
1387 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1388 objects as "const" and the lh_doall[_arg] callback wrappers are not
1389 prototyped to have "const" restrictions on the object pointers they are
1390 given (and so aren't required to cast them away any more).
1393 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1394 (speed) prefers to use its own implementation. The two implementations
1395 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1396 its object type properly exposed (MS_TM) instead of casting to/from "char
1397 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1398 aren't necessarily the greatest nomenclatures - but this is what was used
1399 internally to the implementation so I've used that for now.
1402 *) Ensure that deprecated functions do not get compiled when
1403 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1404 the self-tests were still using deprecated key-generation functions so
1405 these have been updated also.
1408 *) Reorganise PKCS#7 code to separate the digest location functionality
1409 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1410 New function PKCS7_set_digest() to set the digest type for PKCS#7
1411 digestedData type. Add additional code to correctly generate the
1412 digestedData type and add support for this type in PKCS7 initialization
1416 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1417 structure of type "other".
1420 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1421 sure the loop does correctly stop and breaking ("division by zero")
1422 modulus operations are not performed. The (pre-generated) prime
1423 table crypto/bn/bn_prime.h was already correct, but it could not be
1424 re-generated on some platforms because of the "division by zero"
1425 situation in the script.
1426 [Ralf S. Engelschall]
1428 *) Update support for ECC-based TLS ciphersuites according to
1429 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1430 SHA-1 now is only used for "small" curves (where the
1431 representation of a field element takes up to 24 bytes); for
1432 larger curves, the field element resulting from ECDH is directly
1433 used as premaster secret.
1434 [Douglas Stebila (Sun Microsystems Laboratories)]
1436 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1437 curve secp160r1 to the tests.
1438 [Douglas Stebila (Sun Microsystems Laboratories)]
1440 *) Add the possibility to load symbols globally with DSO.
1441 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1443 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1444 control of the error stack.
1447 *) Add support for STORE in ENGINE.
1450 *) Add the STORE type. The intention is to provide a common interface
1451 to certificate and key stores, be they simple file-based stores, or
1452 HSM-type store, or LDAP stores, or...
1453 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1456 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1457 pass a list of arguments to any function as well as provide a way
1458 for a function to pass data back to the caller.
1461 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1462 works like BUF_strdup() but can be used to duplicate a portion of
1463 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1467 *) Add the function sk_find_ex() which works like sk_find(), but will
1468 return an index to an element even if an exact match couldn't be
1469 found. The index is guaranteed to point at the element where the
1470 searched-for key would be inserted to preserve sorting order.
1473 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1474 takes an extra flags argument for optional functionality. Currently,
1475 the following flags are defined:
1477 OBJ_BSEARCH_VALUE_ON_NOMATCH
1478 This one gets OBJ_bsearch_ex() to return a pointer to the first
1479 element where the comparing function returns a negative or zero
1482 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1483 This one gets OBJ_bsearch_ex() to return a pointer to the first
1484 element where the comparing function returns zero. This is useful
1485 if there are more than one element where the comparing function
1489 *) Make it possible to create self-signed certificates with 'openssl ca'
1490 in such a way that the self-signed certificate becomes part of the
1491 CA database and uses the same mechanisms for serial number generation
1492 as all other certificate signing. The new flag '-selfsign' enables
1493 this functionality. Adapt CA.sh and CA.pl.in.
1496 *) Add functionality to check the public key of a certificate request
1497 against a given private. This is useful to check that a certificate
1498 request can be signed by that key (self-signing).
1501 *) Make it possible to have multiple active certificates with the same
1502 subject in the CA index file. This is done only if the keyword
1503 'unique_subject' is set to 'no' in the main CA section (default
1504 if 'CA_default') of the configuration file. The value is saved
1505 with the database itself in a separate index attribute file,
1506 named like the index file with '.attr' appended to the name.
1509 *) Generate muti valued AVAs using '+' notation in config files for
1513 *) Support for nameConstraints certificate extension.
1516 *) Support for policyConstraints certificate extension.
1519 *) Support for policyMappings certificate extension.
1522 *) Make sure the default DSA_METHOD implementation only uses its
1523 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1524 and change its own handlers to be NULL so as to remove unnecessary
1525 indirection. This lets alternative implementations fallback to the
1526 default implementation more easily.
1529 *) Support for directoryName in GeneralName related extensions
1533 *) Make it possible to link applications using Makefile.shared.
1534 Make that possible even when linking against static libraries!
1537 *) Support for single pass processing for S/MIME signing. This now
1538 means that S/MIME signing can be done from a pipe, in addition
1539 cleartext signing (multipart/signed type) is effectively streaming
1540 and the signed data does not need to be all held in memory.
1542 This is done with a new flag PKCS7_STREAM. When this flag is set
1543 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1544 is done after the data is output (and digests calculated) in
1545 SMIME_write_PKCS7().
1548 *) Add full support for -rpath/-R, both in shared libraries and
1549 applications, at least on the platforms where it's known how
1553 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1554 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1555 will now compute a table of multiples of the generator that
1556 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1557 faster (notably in the case of a single point multiplication,
1558 scalar * generator).
1559 [Nils Larsch, Bodo Moeller]
1561 *) IPv6 support for certificate extensions. The various extensions
1562 which use the IP:a.b.c.d can now take IPv6 addresses using the
1563 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1567 *) Added an ENGINE that implements RSA by performing private key
1568 exponentiations with the GMP library. The conversions to and from
1569 GMP's mpz_t format aren't optimised nor are any montgomery forms
1570 cached, and on x86 it appears OpenSSL's own performance has caught up.
1571 However there are likely to be other architectures where GMP could
1572 provide a boost. This ENGINE is not built in by default, but it can be
1573 specified at Configure time and should be accompanied by the necessary
1574 linker additions, eg;
1575 ./config -DOPENSSL_USE_GMP -lgmp
1578 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1579 testing availability of engines with "-t" - the old behaviour is
1580 produced by increasing the feature's verbosity with "-tt".
1583 *) ECDSA routines: under certain error conditions uninitialized BN objects
1584 could be freed. Solution: make sure initialization is performed early
1585 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1589 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1590 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1591 software implementations. For DSA and DH, parameter generation can
1592 also be overriden by providing the appropriate method callbacks.
1595 *) Change the "progress" mechanism used in key-generation and
1596 primality testing to functions that take a new BN_GENCB pointer in
1597 place of callback/argument pairs. The new API functions have "_ex"
1598 postfixes and the older functions are reimplemented as wrappers for
1599 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1600 declarations of the old functions to help (graceful) attempts to
1601 migrate to the new functions. Also, the new key-generation API
1602 functions operate on a caller-supplied key-structure and return
1603 success/failure rather than returning a key or NULL - this is to
1604 help make "keygen" another member function of RSA_METHOD etc.
1606 Example for using the new callback interface:
1608 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1612 BN_GENCB_set(&my_cb, my_callback, my_arg);
1614 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1615 /* For the meaning of a, b in calls to my_callback(), see the
1616 * documentation of the function that calls the callback.
1617 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1618 * my_callback should return 1 if it wants BN_is_prime_ex()
1619 * to continue, or 0 to stop.
1624 *) Change the ZLIB compression method to be stateful, and make it
1625 available to TLS with the number defined in
1626 draft-ietf-tls-compression-04.txt.
1629 *) Add the ASN.1 structures and functions for CertificatePair, which
1630 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1632 CertificatePair ::= SEQUENCE {
1633 forward [0] Certificate OPTIONAL,
1634 reverse [1] Certificate OPTIONAL,
1635 -- at least one of the pair shall be present -- }
1637 Also implement the PEM functions to read and write certificate
1638 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1640 This needed to be defined, mostly for the sake of the LDAP
1641 attribute crossCertificatePair, but may prove useful elsewhere as
1645 *) Make it possible to inhibit symlinking of shared libraries in
1646 Makefile.shared, for Cygwin's sake.
1649 *) Extend the BIGNUM API by creating a function
1650 void BN_set_negative(BIGNUM *a, int neg);
1651 and a macro that behave like
1652 int BN_is_negative(const BIGNUM *a);
1654 to avoid the need to access 'a->neg' directly in applications.
1657 *) Implement fast modular reduction for pseudo-Mersenne primes
1658 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1659 EC_GROUP_new_curve_GFp() will now automatically use this
1661 [Nils Larsch <nla@trustcenter.de>]
1663 *) Add new lock type (CRYPTO_LOCK_BN).
1666 *) Change the ENGINE framework to automatically load engines
1667 dynamically from specific directories unless they could be
1668 found to already be built in or loaded. Move all the
1669 current engines except for the cryptodev one to a new
1671 The engines in engines/ are built as shared libraries if
1672 the "shared" options was given to ./Configure or ./config.
1673 Otherwise, they are inserted in libcrypto.a.
1674 /usr/local/ssl/engines is the default directory for dynamic
1675 engines, but that can be overriden at configure time through
1676 the usual use of --prefix and/or --openssldir, and at run
1677 time with the environment variable OPENSSL_ENGINES.
1678 [Geoff Thorpe and Richard Levitte]
1680 *) Add Makefile.shared, a helper makefile to build shared
1681 libraries. Addapt Makefile.org.
1684 *) Add version info to Win32 DLLs.
1685 [Peter 'Luna' Runestig" <peter@runestig.com>]
1687 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1688 can be added using this API to created arbitrary PKCS#12
1689 files while avoiding the low level API.
1691 New options to PKCS12_create(), key or cert can be NULL and
1692 will then be omitted from the output file. The encryption
1693 algorithm NIDs can be set to -1 for no encryption, the mac
1694 iteration count can be set to 0 to omit the mac.
1696 Enhance pkcs12 utility by making the -nokeys and -nocerts
1697 options work when creating a PKCS#12 file. New option -nomac
1698 to omit the mac, NONE can be set for an encryption algorithm.
1699 New code is modified to use the enhanced PKCS12_create()
1700 instead of the low level API.
1703 *) Extend ASN1 encoder to support indefinite length constructed
1704 encoding. This can output sequences tags and octet strings in
1705 this form. Modify pk7_asn1.c to support indefinite length
1706 encoding. This is experimental and needs additional code to
1707 be useful, such as an ASN1 bio and some enhanced streaming
1710 Extend template encode functionality so that tagging is passed
1711 down to the template encoder.
1714 *) Let 'openssl req' fail if an argument to '-newkey' is not
1715 recognized instead of using RSA as a default.
1718 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1719 As these are not official, they are not included in "ALL";
1720 the "ECCdraft" ciphersuite group alias can be used to select them.
1721 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1723 *) Add ECDH engine support.
1724 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1726 *) Add ECDH in new directory crypto/ecdh/.
1727 [Douglas Stebila (Sun Microsystems Laboratories)]
1729 *) Let BN_rand_range() abort with an error after 100 iterations
1730 without success (which indicates a broken PRNG).
1733 *) Change BN_mod_sqrt() so that it verifies that the input value
1734 is really the square of the return value. (Previously,
1735 BN_mod_sqrt would show GIGO behaviour.)
1738 *) Add named elliptic curves over binary fields from X9.62, SECG,
1739 and WAP/WTLS; add OIDs that were still missing.
1741 [Sheueling Chang Shantz and Douglas Stebila
1742 (Sun Microsystems Laboratories)]
1744 *) Extend the EC library for elliptic curves over binary fields
1745 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1748 EC_GF2m_simple_method
1752 EC_GROUP_new_curve_GF2m
1753 EC_GROUP_set_curve_GF2m
1754 EC_GROUP_get_curve_GF2m
1755 EC_POINT_set_affine_coordinates_GF2m
1756 EC_POINT_get_affine_coordinates_GF2m
1757 EC_POINT_set_compressed_coordinates_GF2m
1759 Point compression for binary fields is disabled by default for
1760 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1763 As binary polynomials are represented as BIGNUMs, various members
1764 of the EC_GROUP and EC_POINT data structures can be shared
1765 between the implementations for prime fields and binary fields;
1766 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1767 are essentially identical to their ..._GFp counterparts.
1768 (For simplicity, the '..._GFp' prefix has been dropped from
1769 various internal method names.)
1771 An internal 'field_div' method (similar to 'field_mul' and
1772 'field_sqr') has been added; this is used only for binary fields.
1774 [Sheueling Chang Shantz and Douglas Stebila
1775 (Sun Microsystems Laboratories)]
1777 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1778 through methods ('mul', 'precompute_mult').
1780 The generic implementations (now internally called 'ec_wNAF_mul'
1781 and 'ec_wNAF_precomputed_mult') remain the default if these
1782 methods are undefined.
1784 [Sheueling Chang Shantz and Douglas Stebila
1785 (Sun Microsystems Laboratories)]
1787 *) New function EC_GROUP_get_degree, which is defined through
1788 EC_METHOD. For curves over prime fields, this returns the bit
1789 length of the modulus.
1791 [Sheueling Chang Shantz and Douglas Stebila
1792 (Sun Microsystems Laboratories)]
1794 *) New functions EC_GROUP_dup, EC_POINT_dup.
1795 (These simply call ..._new and ..._copy).
1797 [Sheueling Chang Shantz and Douglas Stebila
1798 (Sun Microsystems Laboratories)]
1800 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1801 Polynomials are represented as BIGNUMs (where the sign bit is not
1802 used) in the following functions [macros]:
1805 BN_GF2m_sub [= BN_GF2m_add]
1806 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1807 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1808 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1810 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1811 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1812 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1813 BN_GF2m_cmp [= BN_ucmp]
1815 (Note that only the 'mod' functions are actually for fields GF(2^m).
1816 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1818 For some functions, an the irreducible polynomial defining a
1819 field can be given as an 'unsigned int[]' with strictly
1820 decreasing elements giving the indices of those bits that are set;
1821 i.e., p[] represents the polynomial
1822 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1824 p[0] > p[1] > ... > p[k] = 0.
1825 This applies to the following functions:
1830 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1831 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1833 BN_GF2m_mod_sqrt_arr
1834 BN_GF2m_mod_solve_quad_arr
1838 Conversion can be performed by the following functions:
1843 bntest.c has additional tests for binary polynomial arithmetic.
1845 Two implementations for BN_GF2m_mod_div() are available.
1846 The default algorithm simply uses BN_GF2m_mod_inv() and
1847 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1848 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1849 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1851 [Sheueling Chang Shantz and Douglas Stebila
1852 (Sun Microsystems Laboratories)]
1854 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1855 functionality is disabled at compile-time.
1856 [Douglas Stebila <douglas.stebila@sun.com>]
1858 *) Change default behaviour of 'openssl asn1parse' so that more
1859 information is visible when viewing, e.g., a certificate:
1861 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1862 mode the content of non-printable OCTET STRINGs is output in a
1863 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1864 avoid the appearance of a printable string.
1865 [Nils Larsch <nla@trustcenter.de>]
1867 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1869 EC_GROUP_set_asn1_flag()
1870 EC_GROUP_get_asn1_flag()
1871 EC_GROUP_set_point_conversion_form()
1872 EC_GROUP_get_point_conversion_form()
1873 These control ASN1 encoding details:
1874 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1875 has been set to OPENSSL_EC_NAMED_CURVE.
1876 - Points are encoded in uncompressed form by default; options for
1877 asn1_for are as for point2oct, namely
1878 POINT_CONVERSION_COMPRESSED
1879 POINT_CONVERSION_UNCOMPRESSED
1880 POINT_CONVERSION_HYBRID
1882 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1885 EC_GROUP_get0_seed()
1886 EC_GROUP_get_seed_len()
1887 This is used only for ASN1 purposes (so far).
1888 [Nils Larsch <nla@trustcenter.de>]
1890 *) Add 'field_type' member to EC_METHOD, which holds the NID
1891 of the appropriate field type OID. The new function
1892 EC_METHOD_get_field_type() returns this value.
1893 [Nils Larsch <nla@trustcenter.de>]
1898 EC_POINT_point2hex()
1899 EC_POINT_hex2point()
1900 providing useful interfaces to EC_POINT_point2oct() and
1901 EC_POINT_oct2point().
1902 [Nils Larsch <nla@trustcenter.de>]
1904 *) Change internals of the EC library so that the functions
1905 EC_GROUP_set_generator()
1906 EC_GROUP_get_generator()
1907 EC_GROUP_get_order()
1908 EC_GROUP_get_cofactor()
1909 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1910 to methods, which would lead to unnecessary code duplication when
1911 adding different types of curves.
1912 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1914 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1915 arithmetic, and such that modified wNAFs are generated
1916 (which avoid length expansion in many cases).
1919 *) Add a function EC_GROUP_check_discriminant() (defined via
1920 EC_METHOD) that verifies that the curve discriminant is non-zero.
1922 Add a function EC_GROUP_check() that makes some sanity tests
1923 on a EC_GROUP, its generator and order. This includes
1924 EC_GROUP_check_discriminant().
1925 [Nils Larsch <nla@trustcenter.de>]
1927 *) Add ECDSA in new directory crypto/ecdsa/.
1929 Add applications 'openssl ecparam' and 'openssl ecdsa'
1930 (these are based on 'openssl dsaparam' and 'openssl dsa').
1932 ECDSA support is also included in various other files across the
1933 library. Most notably,
1934 - 'openssl req' now has a '-newkey ecdsa:file' option;
1935 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1936 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1937 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1938 them suitable for ECDSA where domain parameters must be
1939 extracted before the specific public key;
1940 - ECDSA engine support has been added.
1941 [Nils Larsch <nla@trustcenter.de>]
1943 *) Include some named elliptic curves, and add OIDs from X9.62,
1944 SECG, and WAP/WTLS. Each curve can be obtained from the new
1946 EC_GROUP_new_by_curve_name(),
1947 and the list of available named curves can be obtained with
1948 EC_get_builtin_curves().
1949 Also add a 'curve_name' member to EC_GROUP objects, which can be
1951 EC_GROUP_set_curve_name()
1952 EC_GROUP_get_curve_name()
1953 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1955 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1956 was actually never needed) and in BN_mul(). The removal in BN_mul()
1957 required a small change in bn_mul_part_recursive() and the addition
1958 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1959 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1960 bn_sub_words() and bn_add_words() except they take arrays with
1964 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1966 *) In the SSL/TLS server implementation, be strict about session ID
1967 context matching (which matters if an application uses a single
1968 external cache for different purposes). Previously,
1969 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1970 set. This did ensure strict client verification, but meant that,
1971 with applications using a single external cache for quite
1972 different requirements, clients could circumvent ciphersuite
1973 restrictions for a given session ID context by starting a session
1974 in a different context.
1977 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1979 *) Cleanse PEM buffers before freeing them since they may contain
1981 [Benjamin Bennett <ben@psc.edu>]
1983 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1984 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1985 authentication-only ciphersuites.
1988 *) Since AES128 and AES256 share a single mask bit in the logic of
1989 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1990 kludge to work properly if AES128 is available and AES256 isn't.
1993 *) Expand security boundary to match 1.1.1 module.
1996 *) Remove redundant features: hash file source, editing of test vectors
1997 modify fipsld to use external fips_premain.c signature.
2000 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2001 run algorithm test programs.
2004 *) Make algorithm test programs more tolerant of whitespace.
2007 *) Have SSL/TLS server implementation tolerate "mismatched" record
2008 protocol version while receiving ClientHello even if the
2009 ClientHello is fragmented. (The server can't insist on the
2010 particular protocol version it has chosen before the ServerHello
2011 message has informed the client about his choice.)
2014 *) Load error codes if they are not already present instead of using a
2015 static variable. This allows them to be cleanly unloaded and reloaded.
2018 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2020 *) Introduce limits to prevent malicious keys being able to
2021 cause a denial of service. (CVE-2006-2940)
2022 [Steve Henson, Bodo Moeller]
2024 *) Fix ASN.1 parsing of certain invalid structures that can result
2025 in a denial of service. (CVE-2006-2937) [Steve Henson]
2027 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2028 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2030 *) Fix SSL client code which could crash if connecting to a
2031 malicious SSLv2 server. (CVE-2006-4343)
2032 [Tavis Ormandy and Will Drewry, Google Security Team]
2034 *) Change ciphersuite string processing so that an explicit
2035 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2036 will no longer include "AES128-SHA"), and any other similar
2037 ciphersuite (same bitmap) from *other* protocol versions (so that
2038 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2039 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2040 changes from 0.9.8b and 0.9.8d.
2043 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2045 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2046 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2048 *) Change the Unix randomness entropy gathering to use poll() when
2049 possible instead of select(), since the latter has some
2050 undesirable limitations.
2051 [Darryl Miles via Richard Levitte and Bodo Moeller]
2053 *) Disable rogue ciphersuites:
2055 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2056 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2057 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2059 The latter two were purportedly from
2060 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2063 Also deactive the remaining ciphersuites from
2064 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2065 unofficial, and the ID has long expired.
2068 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2069 dual-core machines) and other potential thread-safety issues.
2072 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2074 *) Adapt fipsld and the build system to link against the validated FIPS
2075 module in FIPS mode.
2078 *) Fixes for VC++ 2005 build under Windows.
2081 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2082 from a Windows bash shell such as MSYS. It is autodetected from the
2083 "config" script when run from a VC++ environment. Modify standard VC++
2084 build to use fipscanister.o from the GNU make build.
2087 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2089 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2090 The value now differs depending on if you build for FIPS or not.
2091 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2092 safely run with a non-FIPSed libcrypto, as it may crash because of
2093 the difference induced by this change.
2096 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2098 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2099 (part of SSL_OP_ALL). This option used to disable the
2100 countermeasure against man-in-the-middle protocol-version
2101 rollback in the SSL 2.0 server implementation, which is a bad
2102 idea. (CVE-2005-2969)
2104 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2105 for Information Security, National Institute of Advanced Industrial
2106 Science and Technology [AIST], Japan)]
2108 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2109 mainly for FIPS compliance and not fully integrated at this stage.
2112 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2113 the exponentiation using a fixed-length exponent. (Otherwise,
2114 the information leaked through timing could expose the secret key
2115 after many signatures; cf. Bleichenbacher's attack on DSA with
2119 *) Make a new fixed-window mod_exp implementation the default for
2120 RSA, DSA, and DH private-key operations so that the sequence of
2121 squares and multiplies and the memory access pattern are
2122 independent of the particular secret key. This will mitigate
2123 cache-timing and potential related attacks.
2125 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2126 and this is automatically used by BN_mod_exp_mont() if the new flag
2127 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2128 will use this BN flag for private exponents unless the flag
2129 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2130 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2132 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2134 *) Change the client implementation for SSLv23_method() and
2135 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2136 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2137 (Previously, the SSL 2.0 backwards compatible Client Hello
2138 message format would be used even with SSL_OP_NO_SSLv2.)
2141 *) Add support for smime-type MIME parameter in S/MIME messages which some
2145 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2146 a threadsafe manner. Modify rsa code to use new function and add calls
2147 to dsa and dh code (which had race conditions before).
2150 *) Include the fixed error library code in the C error file definitions
2151 instead of fixing them up at runtime. This keeps the error code
2152 structures constant.
2155 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2157 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2160 *) Fixes for newer kerberos headers. NB: the casts are needed because
2161 the 'length' field is signed on one version and unsigned on another
2162 with no (?) obvious way to tell the difference, without these VC++
2163 complains. Also the "definition" of FAR (blank) is no longer included
2164 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2165 some needed definitions.
2168 *) Undo Cygwin change.
2171 *) Added support for proxy certificates according to RFC 3820.
2172 Because they may be a security thread to unaware applications,
2173 they must be explicitely allowed in run-time. See
2174 docs/HOWTO/proxy_certificates.txt for further information.
2177 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2179 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2180 server and client random values. Previously
2181 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2182 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2184 This change has negligible security impact because:
2186 1. Server and client random values still have 24 bytes of pseudo random
2189 2. Server and client random values are sent in the clear in the initial
2192 3. The master secret is derived using the premaster secret (48 bytes in
2193 size for static RSA ciphersuites) as well as client server and random
2196 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2199 [Stephen Henson, reported by UK NISCC]
2201 *) Use Windows randomness collection on Cygwin.
2204 *) Fix hang in EGD/PRNGD query when communication socket is closed
2205 prematurely by EGD/PRNGD.
2206 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2208 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2211 *) Back-port of selected performance improvements from development
2212 branch, as well as improved support for PowerPC platforms.
2215 *) Add lots of checks for memory allocation failure, error codes to indicate
2216 failure and freeing up memory if a failure occurs.
2217 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2219 *) Add new -passin argument to dgst.
2222 *) Perform some character comparisons of different types in X509_NAME_cmp:
2223 this is needed for some certificates that reencode DNs into UTF8Strings
2224 (in violation of RFC3280) and can't or wont issue name rollover
2228 *) Make an explicit check during certificate validation to see that
2229 the CA setting in each certificate on the chain is correct. As a
2230 side effect always do the following basic checks on extensions,
2231 not just when there's an associated purpose to the check:
2233 - if there is an unhandled critical extension (unless the user
2234 has chosen to ignore this fault)
2235 - if the path length has been exceeded (if one is set at all)
2236 - that certain extensions fit the associated purpose (if one has
2240 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2242 *) Avoid a race condition when CRLs are checked in a multi threaded
2243 environment. This would happen due to the reordering of the revoked
2244 entries during signature checking and serial number lookup. Now the
2245 encoding is cached and the serial number sort performed under a lock.
2246 Add new STACK function sk_is_sorted().
2249 *) Add Delta CRL to the extension code.
2252 *) Various fixes to s3_pkt.c so alerts are sent properly.
2253 [David Holmes <d.holmes@f5.com>]
2255 *) Reduce the chances of duplicate issuer name and serial numbers (in
2256 violation of RFC3280) using the OpenSSL certificate creation utilities.
2257 This is done by creating a random 64 bit value for the initial serial
2258 number when a serial number file is created or when a self signed
2259 certificate is created using 'openssl req -x509'. The initial serial
2260 number file is created using 'openssl x509 -next_serial' in CA.pl
2261 rather than being initialized to 1.
2264 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2266 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2267 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2268 [Joe Orton, Steve Henson]
2270 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2272 [Joe Orton, Steve Henson]
2274 *) Make it possible to have multiple active certificates with the same
2275 subject in the CA index file. This is done only if the keyword
2276 'unique_subject' is set to 'no' in the main CA section (default
2277 if 'CA_default') of the configuration file. The value is saved
2278 with the database itself in a separate index attribute file,
2279 named like the index file with '.attr' appended to the name.
2282 *) X509 verify fixes. Disable broken certificate workarounds when
2283 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2284 keyUsage extension present. Don't accept CRLs with unhandled critical
2285 extensions: since verify currently doesn't process CRL extensions this
2286 rejects a CRL with *any* critical extensions. Add new verify error codes
2290 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2291 A clarification of RFC2560 will require the use of OCTET STRINGs and
2292 some implementations cannot handle the current raw format. Since OpenSSL
2293 copies and compares OCSP nonces as opaque blobs without any attempt at
2294 parsing them this should not create any compatibility issues.
2297 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2298 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2299 this HMAC (and other) operations are several times slower than OpenSSL
2303 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2304 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2306 *) Use the correct content when signing type "other".
2309 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2311 *) Fix various bugs revealed by running the NISCC test suite:
2313 Stop out of bounds reads in the ASN1 code when presented with
2314 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2316 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2318 If verify callback ignores invalid public key errors don't try to check
2319 certificate signature with the NULL public key.
2323 *) New -ignore_err option in ocsp application to stop the server
2324 exiting on the first error in a request.
2327 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2328 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2332 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2333 extra data after the compression methods not only for TLS 1.0
2334 but also for SSL 3.0 (as required by the specification).
2335 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2337 *) Change X509_certificate_type() to mark the key as exported/exportable
2338 when it's 512 *bits* long, not 512 bytes.
2341 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2342 blocks during encryption.
2345 *) Various fixes to base64 BIO and non blocking I/O. On write
2346 flushes were not handled properly if the BIO retried. On read
2347 data was not being buffered properly and had various logic bugs.
2348 This also affects blocking I/O when the data being decoded is a
2352 *) Various S/MIME bugfixes and compatibility changes:
2353 output correct application/pkcs7 MIME type if
2354 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2355 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2356 of files as .eml work). Correctly handle very long lines in MIME
2360 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2362 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2363 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2364 a protocol version number mismatch like a decryption error
2365 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2368 *) Turn on RSA blinding by default in the default implementation
2369 to avoid a timing attack. Applications that don't want it can call
2370 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2371 They would be ill-advised to do so in most cases.
2372 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2374 *) Change RSA blinding code so that it works when the PRNG is not
2375 seeded (in this case, the secret RSA exponent is abused as
2376 an unpredictable seed -- if it is not unpredictable, there
2377 is no point in blinding anyway). Make RSA blinding thread-safe
2378 by remembering the creator's thread ID in rsa->blinding and
2379 having all other threads use local one-time blinding factors
2380 (this requires more computation than sharing rsa->blinding, but
2381 avoids excessive locking; and if an RSA object is not shared
2382 between threads, blinding will still be very fast).
2385 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2386 ENGINE as defaults for all supported algorithms irrespective of
2387 the 'flags' parameter. 'flags' is now honoured, so applications
2388 should make sure they are passing it correctly.
2391 *) Target "mingw" now allows native Windows code to be generated in
2392 the Cygwin environment as well as with the MinGW compiler.
2395 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2397 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2398 via timing by performing a MAC computation even if incorrrect
2399 block cipher padding has been found. This is a countermeasure
2400 against active attacks where the attacker has to distinguish
2401 between bad padding and a MAC verification error. (CVE-2003-0078)
2403 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2404 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2405 Martin Vuagnoux (EPFL, Ilion)]
2407 *) Make the no-err option work as intended. The intention with no-err
2408 is not to have the whole error stack handling routines removed from
2409 libcrypto, it's only intended to remove all the function name and
2410 reason texts, thereby removing some of the footprint that may not
2411 be interesting if those errors aren't displayed anyway.
2413 NOTE: it's still possible for any application or module to have it's
2414 own set of error texts inserted. The routines are there, just not
2415 used by default when no-err is given.
2418 *) Add support for FreeBSD on IA64.
2419 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2421 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2422 Kerberos function mit_des_cbc_cksum(). Before this change,
2423 the value returned by DES_cbc_cksum() was like the one from
2424 mit_des_cbc_cksum(), except the bytes were swapped.
2425 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2427 *) Allow an application to disable the automatic SSL chain building.
2428 Before this a rather primitive chain build was always performed in
2429 ssl3_output_cert_chain(): an application had no way to send the
2430 correct chain if the automatic operation produced an incorrect result.
2432 Now the chain builder is disabled if either:
2434 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2436 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2438 The reasoning behind this is that an application would not want the
2439 auto chain building to take place if extra chain certificates are
2440 present and it might also want a means of sending no additional
2441 certificates (for example the chain has two certificates and the
2445 *) Add the possibility to build without the ENGINE framework.
2446 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2448 *) Under Win32 gmtime() can return NULL: check return value in
2449 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2452 *) DSA routines: under certain error conditions uninitialized BN objects
2453 could be freed. Solution: make sure initialization is performed early
2454 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2455 Nils Larsch <nla@trustcenter.de> via PR#459)
2458 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2459 checked on reconnect on the client side, therefore session resumption
2460 could still fail with a "ssl session id is different" error. This
2461 behaviour is masked when SSL_OP_ALL is used due to
2462 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2463 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2464 followup to PR #377.
2467 *) IA-32 assembler support enhancements: unified ELF targets, support
2468 for SCO/Caldera platforms, fix for Cygwin shared build.
2471 *) Add support for FreeBSD on sparc64. As a consequence, support for
2472 FreeBSD on non-x86 processors is separate from x86 processors on
2473 the config script, much like the NetBSD support.
2474 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2476 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2478 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2481 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2482 code (06) was taken as the first octet of the session ID and the last
2483 octet was ignored consequently. As a result SSLv2 client side session
2484 caching could not have worked due to the session ID mismatch between
2486 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2490 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2491 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2495 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2496 seems that in spite of existing for more than a year, many application
2497 author have done nothing to provide the necessary callbacks, which
2498 means that this particular engine will not work properly anywhere.
2499 This is a very unfortunate situation which forces us, in the name
2500 of usability, to give the hw_ncipher.c a static lock, which is part
2502 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2503 appear in 0.9.8 or later. We EXPECT application authors to have
2504 dealt properly with this when 0.9.8 is released (unless we actually
2505 make such changes in the libcrypto locking code that changes will
2506 have to be made anyway).
2509 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2510 octets have been read, EOF or an error occurs. Without this change
2511 some truncated ASN1 structures will not produce an error.
2514 *) Disable Heimdal support, since it hasn't been fully implemented.
2515 Still give the possibility to force the use of Heimdal, but with
2516 warnings and a request that patches get sent to openssl-dev.
2519 *) Add the VC-CE target, introduce the WINCE sysname, and add
2520 INSTALL.WCE and appropriate conditionals to make it build.
2521 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2523 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2524 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2525 edit numbers of the version.
2526 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2528 *) Introduce safe string copy and catenation functions
2529 (BUF_strlcpy() and BUF_strlcat()).
2530 [Ben Laurie (CHATS) and Richard Levitte]
2532 *) Avoid using fixed-size buffers for one-line DNs.
2533 [Ben Laurie (CHATS)]
2535 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2536 resizing buffers containing secrets, and use where appropriate.
2537 [Ben Laurie (CHATS)]
2539 *) Avoid using fixed size buffers for configuration file location.
2540 [Ben Laurie (CHATS)]
2542 *) Avoid filename truncation for various CA files.
2543 [Ben Laurie (CHATS)]
2545 *) Use sizeof in preference to magic numbers.
2546 [Ben Laurie (CHATS)]
2548 *) Avoid filename truncation in cert requests.
2549 [Ben Laurie (CHATS)]
2551 *) Add assertions to check for (supposedly impossible) buffer
2553 [Ben Laurie (CHATS)]
2555 *) Don't cache truncated DNS entries in the local cache (this could
2556 potentially lead to a spoofing attack).
2557 [Ben Laurie (CHATS)]
2559 *) Fix various buffers to be large enough for hex/decimal
2560 representations in a platform independent manner.
2561 [Ben Laurie (CHATS)]
2563 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2564 resizing buffers containing secrets, and use where appropriate.
2565 [Ben Laurie (CHATS)]
2567 *) Add BIO_indent() to avoid much slightly worrying code to do
2569 [Ben Laurie (CHATS)]
2571 *) Convert sprintf()/BIO_puts() to BIO_printf().
2572 [Ben Laurie (CHATS)]
2574 *) buffer_gets() could terminate with the buffer only half
2576 [Ben Laurie (CHATS)]
2578 *) Add assertions to prevent user-supplied crypto functions from
2579 overflowing internal buffers by having large block sizes, etc.
2580 [Ben Laurie (CHATS)]
2582 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2584 [Ben Laurie (CHATS)]
2586 *) Eliminate unused copy of key in RC4.
2587 [Ben Laurie (CHATS)]
2589 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2590 [Ben Laurie (CHATS)]
2592 *) Fix off-by-one error in EGD path.
2593 [Ben Laurie (CHATS)]
2595 *) If RANDFILE path is too long, ignore instead of truncating.
2596 [Ben Laurie (CHATS)]
2598 *) Eliminate unused and incorrectly sized X.509 structure
2600 [Ben Laurie (CHATS)]
2602 *) Eliminate unused and dangerous function knumber().
2603 [Ben Laurie (CHATS)]
2605 *) Eliminate unused and dangerous structure, KSSL_ERR.
2606 [Ben Laurie (CHATS)]
2608 *) Protect against overlong session ID context length in an encoded
2609 session object. Since these are local, this does not appear to be
2611 [Ben Laurie (CHATS)]
2613 *) Change from security patch (see 0.9.6e below) that did not affect
2614 the 0.9.6 release series:
2616 Remote buffer overflow in SSL3 protocol - an attacker could
2617 supply an oversized master key in Kerberos-enabled versions.
2619 [Ben Laurie (CHATS)]
2621 *) Change the SSL kerb5 codes to match RFC 2712.
2624 *) Make -nameopt work fully for req and add -reqopt switch.
2625 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2627 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2628 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2630 *) Make sure tests can be performed even if the corresponding algorithms
2631 have been removed entirely. This was also the last step to make
2632 OpenSSL compilable with DJGPP under all reasonable conditions.
2633 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2635 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2636 to allow version independent disabling of normally unselected ciphers,
2637 which may be activated as a side-effect of selecting a single cipher.
2639 (E.g., cipher list string "RSA" enables ciphersuites that are left
2640 out of "ALL" because they do not provide symmetric encryption.
2641 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2642 [Lutz Jaenicke, Bodo Moeller]
2644 *) Add appropriate support for separate platform-dependent build
2645 directories. The recommended way to make a platform-dependent
2646 build directory is the following (tested on Linux), maybe with
2649 # Place yourself outside of the OpenSSL source tree. In
2650 # this example, the environment variable OPENSSL_SOURCE
2651 # is assumed to contain the absolute OpenSSL source directory.
2652 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2653 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2654 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2655 mkdir -p `dirname $F`
2656 ln -s $OPENSSL_SOURCE/$F $F
2659 To be absolutely sure not to disturb the source tree, a "make clean"
2660 is a good thing. If it isn't successfull, don't worry about it,
2661 it probably means the source directory is very clean.
2664 *) Make sure any ENGINE control commands make local copies of string
2665 pointers passed to them whenever necessary. Otherwise it is possible
2666 the caller may have overwritten (or deallocated) the original string
2667 data when a later ENGINE operation tries to use the stored values.
2668 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2670 *) Improve diagnostics in file reading and command-line digests.
2671 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2673 *) Add AES modes CFB and OFB to the object database. Correct an
2674 error in AES-CFB decryption.
2677 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2678 allows existing EVP_CIPHER_CTX structures to be reused after
2679 calling EVP_*Final(). This behaviour is used by encryption
2680 BIOs and some applications. This has the side effect that
2681 applications must explicitly clean up cipher contexts with
2682 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2685 *) Check the values of dna and dnb in bn_mul_recursive before calling
2686 bn_mul_comba (a non zero value means the a or b arrays do not contain
2687 n2 elements) and fallback to bn_mul_normal if either is not zero.
2690 *) Fix escaping of non-ASCII characters when using the -subj option
2691 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2694 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2695 form for "surname", serialNumber has no short form.
2696 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2697 therefore remove "mail" short name for "internet 7".
2698 The OID for unique identifiers in X509 certificates is
2699 x500UniqueIdentifier, not uniqueIdentifier.
2700 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2703 *) Add an "init" command to the ENGINE config module and auto initialize
2704 ENGINEs. Without any "init" command the ENGINE will be initialized
2705 after all ctrl commands have been executed on it. If init=1 the
2706 ENGINE is initailized at that point (ctrls before that point are run
2707 on the uninitialized ENGINE and after on the initialized one). If
2708 init=0 then the ENGINE will not be iniatialized at all.
2711 *) Fix the 'app_verify_callback' interface so that the user-defined
2712 argument is actually passed to the callback: In the
2713 SSL_CTX_set_cert_verify_callback() prototype, the callback
2714 declaration has been changed from
2717 int (*cb)(X509_STORE_CTX *,void *);
2718 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2719 i=s->ctx->app_verify_callback(&ctx)
2720 has been changed into
2721 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2723 To update applications using SSL_CTX_set_cert_verify_callback(),
2724 a dummy argument can be added to their callback functions.
2725 [D. K. Smetters <smetters@parc.xerox.com>]
2727 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2728 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2730 *) Add and OPENSSL_LOAD_CONF define which will cause
2731 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2732 This allows older applications to transparently support certain
2733 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2734 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2735 load the config file and OPENSSL_add_all_algorithms_conf() which will
2736 always load it have also been added.
2739 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2740 Adjust NIDs and EVP layer.
2741 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2743 *) Config modules support in openssl utility.
2745 Most commands now load modules from the config file,
2746 though in a few (such as version) this isn't done
2747 because it couldn't be used for anything.
2749 In the case of ca and req the config file used is
2750 the same as the utility itself: that is the -config
2751 command line option can be used to specify an
2755 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2756 use "openssl_conf" if filename is NULL use default openssl config file.
2759 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2760 config section name. Add a new flag to tolerate a missing config file
2761 and move code to CONF_modules_load_file().
2764 *) Support for crypto accelerator cards from Accelerated Encryption
2765 Processing, www.aep.ie. (Use engine 'aep')
2766 The support was copied from 0.9.6c [engine] and adapted/corrected
2767 to work with the new engine framework.
2768 [AEP Inc. and Richard Levitte]
2770 *) Support for SureWare crypto accelerator cards from Baltimore
2771 Technologies. (Use engine 'sureware')
2772 The support was copied from 0.9.6c [engine] and adapted
2773 to work with the new engine framework.
2776 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2777 make the newer ENGINE framework commands for the CHIL engine work.
2778 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2780 *) Make it possible to produce shared libraries on ReliantUNIX.
2781 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2783 *) Add the configuration target debug-linux-ppro.
2784 Make 'openssl rsa' use the general key loading routines
2785 implemented in apps.c, and make those routines able to
2786 handle the key format FORMAT_NETSCAPE and the variant
2788 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2790 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2791 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2793 *) Add -keyform to rsautl, and document -engine.
2794 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2796 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2797 BIO_R_NO_SUCH_FILE error code rather than the generic
2798 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2801 *) Add new functions
2803 ERR_peek_last_error_line
2804 ERR_peek_last_error_line_data.
2805 These are similar to
2808 ERR_peek_error_line_data,
2809 but report on the latest error recorded rather than the first one
2810 still in the error queue.
2811 [Ben Laurie, Bodo Moeller]
2813 *) default_algorithms option in ENGINE config module. This allows things
2815 default_algorithms = ALL
2816 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2819 *) Prelminary ENGINE config module.
2822 *) New experimental application configuration code.
2825 *) Change the AES code to follow the same name structure as all other
2826 symmetric ciphers, and behave the same way. Move everything to
2827 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2828 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2830 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2831 [Ben Laurie and Theo de Raadt]
2833 *) Add option to output public keys in req command.
2834 [Massimiliano Pala madwolf@openca.org]
2836 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2837 (up to about 10% better than before for P-192 and P-224).
2840 *) New functions/macros
2842 SSL_CTX_set_msg_callback(ctx, cb)
2843 SSL_CTX_set_msg_callback_arg(ctx, arg)
2844 SSL_set_msg_callback(ssl, cb)
2845 SSL_set_msg_callback_arg(ssl, arg)
2847 to request calling a callback function
2849 void cb(int write_p, int version, int content_type,
2850 const void *buf, size_t len, SSL *ssl, void *arg)
2852 whenever a protocol message has been completely received
2853 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2854 protocol version according to which the SSL library interprets
2855 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2856 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2857 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2858 specification (change_cipher_spec(20), alert(21), handshake(22)).
2859 'buf' and 'len' point to the actual message, 'ssl' to the
2860 SSL object, and 'arg' is the application-defined value set by
2861 SSL[_CTX]_set_msg_callback_arg().
2863 'openssl s_client' and 'openssl s_server' have new '-msg' options
2864 to enable a callback that displays all protocol messages.
2867 *) Change the shared library support so shared libraries are built as
2868 soon as the corresponding static library is finished, and thereby get
2869 openssl and the test programs linked against the shared library.
2870 This still only happens when the keyword "shard" has been given to
2871 the configuration scripts.
2873 NOTE: shared library support is still an experimental thing, and
2874 backward binary compatibility is still not guaranteed.
2875 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2877 *) Add support for Subject Information Access extension.
2878 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2880 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2881 additional bytes when new memory had to be allocated, not just
2882 when reusing an existing buffer.
2885 *) New command line and configuration option 'utf8' for the req command.
2886 This allows field values to be specified as UTF8 strings.
2889 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2890 runs for the former and machine-readable output for the latter.
2893 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2894 of the e-mail address in the DN (i.e., it will go into a certificate
2895 extension only). The new configuration file option 'email_in_dn = no'
2896 has the same effect.
2897 [Massimiliano Pala madwolf@openca.org]
2899 *) Change all functions with names starting with des_ to be starting
2900 with DES_ instead. Add wrappers that are compatible with libdes,
2901 but are named _ossl_old_des_*. Finally, add macros that map the
2902 des_* symbols to the corresponding _ossl_old_des_* if libdes
2903 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2904 desired, the des_* symbols will be mapped to DES_*, with one
2907 Since we provide two compatibility mappings, the user needs to
2908 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2909 compatibility is desired. The default (i.e., when that macro
2910 isn't defined) is OpenSSL 0.9.6c compatibility.
2912 There are also macros that enable and disable the support of old
2913 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2914 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2915 are defined, the default will apply: to support the old des routines.
2917 In either case, one must include openssl/des.h to get the correct
2918 definitions. Do not try to just include openssl/des_old.h, that
2921 NOTE: This is a major break of an old API into a new one. Software
2922 authors are encouraged to switch to the DES_ style functions. Some
2923 time in the future, des_old.h and the libdes compatibility functions
2924 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2925 default), and then completely removed.
2928 *) Test for certificates which contain unsupported critical extensions.
2929 If such a certificate is found during a verify operation it is
2930 rejected by default: this behaviour can be overridden by either
2931 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2932 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2933 X509_supported_extension() has also been added which returns 1 if a
2934 particular extension is supported.
2937 *) Modify the behaviour of EVP cipher functions in similar way to digests
2938 to retain compatibility with existing code.
2941 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2942 compatibility with existing code. In particular the 'ctx' parameter does
2943 not have to be to be initialized before the call to EVP_DigestInit() and
2944 it is tidied up after a call to EVP_DigestFinal(). New function
2945 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2946 EVP_MD_CTX_copy() changed to not require the destination to be
2947 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2948 requires the destination to be valid.
2950 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2951 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2954 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2955 so that complete 'Handshake' protocol structures are kept in memory
2956 instead of overwriting 'msg_type' and 'length' with 'body' data.
2959 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2960 [Massimo Santin via Richard Levitte]
2962 *) Major restructuring to the underlying ENGINE code. This includes
2963 reduction of linker bloat, separation of pure "ENGINE" manipulation
2964 (initialisation, etc) from functionality dealing with implementations
2965 of specific crypto iterfaces. This change also introduces integrated
2966 support for symmetric ciphers and digest implementations - so ENGINEs
2967 can now accelerate these by providing EVP_CIPHER and EVP_MD
2968 implementations of their own. This is detailed in crypto/engine/README
2969 as it couldn't be adequately described here. However, there are a few
2970 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2971 were changed in the original introduction of ENGINE code have now
2972 reverted back - the hooking from this code to ENGINE is now a good
2973 deal more passive and at run-time, operations deal directly with
2974 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2975 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2976 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2977 they were not being used by the framework as there is no concept of a
2978 BIGNUM_METHOD and they could not be generalised to the new
2979 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2980 ENGINE_cpy() has been removed as it cannot be consistently defined in
2984 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2987 *) Change mkdef.pl to sort symbols that get the same entry number,
2988 and make sure the automatically generated functions ERR_load_*
2989 become part of libeay.num as well.
2992 *) New function SSL_renegotiate_pending(). This returns true once
2993 renegotiation has been requested (either SSL_renegotiate() call
2994 or HelloRequest/ClientHello receveived from the peer) and becomes
2995 false once a handshake has been completed.
2996 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2997 sends a HelloRequest, but does not ensure that a handshake takes
2998 place. SSL_renegotiate_pending() is useful for checking if the
2999 client has followed the request.)
3002 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3003 By default, clients may request session resumption even during
3004 renegotiation (if session ID contexts permit); with this option,
3005 session resumption is possible only in the first handshake.
3007 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3008 more bits available for options that should not be part of
3009 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3012 *) Add some demos for certificate and certificate request creation.
3015 *) Make maximum certificate chain size accepted from the peer application
3016 settable (SSL*_get/set_max_cert_list()), as proposed by
3017 "Douglas E. Engert" <deengert@anl.gov>.
3020 *) Add support for shared libraries for Unixware-7
3021 (Boyd Lynn Gerber <gerberb@zenez.com>).
3024 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3025 be done prior to destruction. Use this to unload error strings from
3026 ENGINEs that load their own error strings. NB: This adds two new API
3027 functions to "get" and "set" this destroy handler in an ENGINE.
3030 *) Alter all existing ENGINE implementations (except "openssl" and
3031 "openbsd") to dynamically instantiate their own error strings. This
3032 makes them more flexible to be built both as statically-linked ENGINEs
3033 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3034 Also, add stub code to each that makes building them as self-contained
3035 shared-libraries easier (see README.ENGINE).
3038 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3039 implementations into applications that are completely implemented in
3040 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3041 commands that can be used to configure what shared-library to load and
3042 to control aspects of the way it is handled. Also, made an update to
3043 the README.ENGINE file that brings its information up-to-date and
3044 provides some information and instructions on the "dynamic" ENGINE
3045 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3048 *) Make it possible to unload ranges of ERR strings with a new
3049 "ERR_unload_strings" function.
3052 *) Add a copy() function to EVP_MD.
3055 *) Make EVP_MD routines take a context pointer instead of just the
3056 md_data void pointer.
3059 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3060 that the digest can only process a single chunk of data
3061 (typically because it is provided by a piece of
3062 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3063 is only going to provide a single chunk of data, and hence the
3064 framework needn't accumulate the data for oneshot drivers.
3067 *) As with "ERR", make it possible to replace the underlying "ex_data"
3068 functions. This change also alters the storage and management of global
3069 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3070 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3071 index counters. The API functions that use this state have been changed
3072 to take a "class_index" rather than pointers to the class's local STACK
3073 and counter, and there is now an API function to dynamically create new
3074 classes. This centralisation allows us to (a) plug a lot of the
3075 thread-safety problems that existed, and (b) makes it possible to clean
3076 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3077 such data would previously have always leaked in application code and
3078 workarounds were in place to make the memory debugging turn a blind eye
3079 to it. Application code that doesn't use this new function will still
3080 leak as before, but their memory debugging output will announce it now
3081 rather than letting it slide.
3083 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3084 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3085 has a return value to indicate success or failure.
3088 *) Make it possible to replace the underlying "ERR" functions such that the
3089 global state (2 LHASH tables and 2 locks) is only used by the "default"
3090 implementation. This change also adds two functions to "get" and "set"
3091 the implementation prior to it being automatically set the first time
3092 any other ERR function takes place. Ie. an application can call "get",
3093 pass the return value to a module it has just loaded, and that module
3094 can call its own "set" function using that value. This means the
3095 module's "ERR" operations will use (and modify) the error state in the
3096 application and not in its own statically linked copy of OpenSSL code.
3099 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3100 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3101 the operation, and provides a more encapsulated way for external code
3102 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3103 to use these functions rather than manually incrementing the counts.
3105 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3108 *) Add EVP test program.
3111 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3114 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3115 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3116 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3117 These allow a CRL to be built without having to access X509_CRL fields
3118 directly. Modify 'ca' application to use new functions.
3121 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3122 bug workarounds. Rollback attack detection is a security feature.
3123 The problem will only arise on OpenSSL servers when TLSv1 is not
3124 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3125 Software authors not wanting to support TLSv1 will have special reasons
3126 for their choice and can explicitly enable this option.
3127 [Bodo Moeller, Lutz Jaenicke]
3129 *) Rationalise EVP so it can be extended: don't include a union of
3130 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3131 (similar to those existing for EVP_CIPHER_CTX).
3136 EVP_MD_CTX_init(&md); /* new function call */
3137 EVP_DigestInit(&md, EVP_sha1());
3138 EVP_DigestUpdate(&md, in, len);
3139 EVP_DigestFinal(&md, out, NULL);
3140 EVP_MD_CTX_cleanup(&md); /* new function call */
3144 *) Make DES key schedule conform to the usual scheme, as well as
3145 correcting its structure. This means that calls to DES functions
3146 now have to pass a pointer to a des_key_schedule instead of a
3147 plain des_key_schedule (which was actually always a pointer
3150 des_key_schedule ks;
3152 des_set_key_checked(..., &ks);
3153 des_ncbc_encrypt(..., &ks, ...);
3155 (Note that a later change renames 'des_...' into 'DES_...'.)
3158 *) Initial reduction of linker bloat: the use of some functions, such as
3159 PEM causes large amounts of unused functions to be linked in due to
3160 poor organisation. For example pem_all.c contains every PEM function
3161 which has a knock on effect of linking in large amounts of (unused)
3162 ASN1 code. Grouping together similar functions and splitting unrelated
3163 functions prevents this.
3166 *) Cleanup of EVP macros.
3169 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3170 correct _ecb suffix.
3173 *) Add initial OCSP responder support to ocsp application. The
3174 revocation information is handled using the text based index
3175 use by the ca application. The responder can either handle
3176 requests generated internally, supplied in files (for example
3177 via a CGI script) or using an internal minimal server.
3180 *) Add configuration choices to get zlib compression for TLS.
3183 *) Changes to Kerberos SSL for RFC 2712 compliance:
3184 1. Implemented real KerberosWrapper, instead of just using
3185 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3186 2. Implemented optional authenticator field of KerberosWrapper.
3188 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3189 and authenticator structs; see crypto/krb5/.
3191 Generalized Kerberos calls to support multiple Kerberos libraries.
3192 [Vern Staats <staatsvr@asc.hpc.mil>,
3193 Jeffrey Altman <jaltman@columbia.edu>
3194 via Richard Levitte]
3196 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3197 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3198 values for each of the key sizes rather than having just
3199 parameters (and 'speed' generating keys each time).
3202 *) Speed up EVP routines.
3205 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3206 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3207 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3208 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3210 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3211 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3212 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3215 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3217 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3220 *) Added the OS2-EMX target.
3221 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3223 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3224 to support NCONF routines in extension code. New function CONF_set_nconf()
3225 to allow functions which take an NCONF to also handle the old LHASH
3226 structure: this means that the old CONF compatible routines can be
3227 retained (in particular wrt extensions) without having to duplicate the
3228 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3231 *) Enhance the general user interface with mechanisms for inner control
3232 and with possibilities to have yes/no kind of prompts.
3235 *) Change all calls to low level digest routines in the library and
3236 applications to use EVP. Add missing calls to HMAC_cleanup() and
3237 don't assume HMAC_CTX can be copied using memcpy().
3238 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3240 *) Add the possibility to control engines through control names but with
3241 arbitrary arguments instead of just a string.
3242 Change the key loaders to take a UI_METHOD instead of a callback
3243 function pointer. NOTE: this breaks binary compatibility with earlier
3244 versions of OpenSSL [engine].
3245 Adapt the nCipher code for these new conditions and add a card insertion
3249 *) Enhance the general user interface with mechanisms to better support
3250 dialog box interfaces, application-defined prompts, the possibility
3251 to use defaults (for example default passwords from somewhere else)
3252 and interrupts/cancellations.
3255 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3256 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3259 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3260 tidy up some unnecessarily weird code in 'sk_new()').
3261 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3263 *) Change the key loading routines for ENGINEs to use the same kind
3264 callback (pem_password_cb) as all other routines that need this
3268 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3269 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3270 than this minimum value is recommended.
3273 *) New random seeder for OpenVMS, using the system process statistics
3274 that are easily reachable.
3277 *) Windows apparently can't transparently handle global
3278 variables defined in DLLs. Initialisations such as:
3280 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3282 wont compile. This is used by the any applications that need to
3283 declare their own ASN1 modules. This was fixed by adding the option
3284 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3285 needed for static libraries under Win32.
3288 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3289 setting of purpose and trust fields. New X509_STORE trust and
3290 purpose functions and tidy up setting in other SSL functions.
3293 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3294 structure. These are inherited by X509_STORE_CTX when it is
3295 initialised. This allows various defaults to be set in the
3296 X509_STORE structure (such as flags for CRL checking and custom
3297 purpose or trust settings) for functions which only use X509_STORE_CTX
3298 internally such as S/MIME.
3300 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3301 trust settings if they are not set in X509_STORE. This allows X509_STORE
3302 purposes and trust (in S/MIME for example) to override any set by default.
3304 Add command line options for CRL checking to smime, s_client and s_server
3308 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3309 are set then the CRL is looked up in the X509_STORE structure and
3310 its validity and signature checked, then if the certificate is found
3311 in the CRL the verify fails with a revoked error.
3313 Various new CRL related callbacks added to X509_STORE_CTX structure.
3315 Command line options added to 'verify' application to support this.
3317 This needs some additional work, such as being able to handle multiple
3318 CRLs with different times, extension based lookup (rather than just
3319 by subject name) and ultimately more complete V2 CRL extension
3323 *) Add a general user interface API (crypto/ui/). This is designed
3324 to replace things like des_read_password and friends (backward
3325 compatibility functions using this new API are provided).
3326 The purpose is to remove prompting functions from the DES code
3327 section as well as provide for prompting through dialog boxes in
3328 a window system and the like.
3331 *) Add "ex_data" support to ENGINE so implementations can add state at a
3332 per-structure level rather than having to store it globally.
3335 *) Make it possible for ENGINE structures to be copied when retrieved by
3336 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3337 This causes the "original" ENGINE structure to act like a template,
3338 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3339 operational state can be localised to each ENGINE structure, despite the
3340 fact they all share the same "methods". New ENGINE structures returned in
3341 this case have no functional references and the return value is the single
3342 structural reference. This matches the single structural reference returned
3343 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3347 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3348 needs to match any other type at all we need to manually clear the
3352 *) Changes to the "openssl engine" utility to include;
3353 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3354 about an ENGINE's available control commands.
3355 - executing control commands from command line arguments using the
3356 '-pre' and '-post' switches. '-post' is only used if '-t' is
3357 specified and the ENGINE is successfully initialised. The syntax for
3358 the individual commands are colon-separated, for example;
3359 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3362 *) New dynamic control command support for ENGINEs. ENGINEs can now
3363 declare their own commands (numbers), names (strings), descriptions,
3364 and input types for run-time discovery by calling applications. A
3365 subset of these commands are implicitly classed as "executable"
3366 depending on their input type, and only these can be invoked through
3367 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3368 can be based on user input, config files, etc). The distinction is
3369 that "executable" commands cannot return anything other than a boolean
3370 result and can only support numeric or string input, whereas some
3371 discoverable commands may only be for direct use through
3372 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3373 pointers, or other custom uses. The "executable" commands are to
3374 support parameterisations of ENGINE behaviour that can be
3375 unambiguously defined by ENGINEs and used consistently across any
3376 OpenSSL-based application. Commands have been added to all the
3377 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3378 control over shared-library paths without source code alterations.
3381 *) Changed all ENGINE implementations to dynamically allocate their
3382 ENGINEs rather than declaring them statically. Apart from this being
3383 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3384 this also allows the implementations to compile without using the
3385 internal engine_int.h header.
3388 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3389 'const' value. Any code that should be able to modify a RAND_METHOD
3390 should already have non-const pointers to it (ie. they should only
3391 modify their own ones).
3394 *) Made a variety of little tweaks to the ENGINE code.
3395 - "atalla" and "ubsec" string definitions were moved from header files
3396 to C code. "nuron" string definitions were placed in variables
3397 rather than hard-coded - allowing parameterisation of these values
3398 later on via ctrl() commands.
3399 - Removed unused "#if 0"'d code.
3400 - Fixed engine list iteration code so it uses ENGINE_free() to release
3401 structural references.
3402 - Constified the RAND_METHOD element of ENGINE structures.
3403 - Constified various get/set functions as appropriate and added
3404 missing functions (including a catch-all ENGINE_cpy that duplicates
3405 all ENGINE values onto a new ENGINE except reference counts/state).
3406 - Removed NULL parameter checks in get/set functions. Setting a method
3407 or function to NULL is a way of cancelling out a previously set
3408 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3409 and doesn't justify the extra error symbols and code.
3410 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3411 flags from engine_int.h to engine.h.
3412 - Changed prototypes for ENGINE handler functions (init(), finish(),
3413 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3416 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3417 to the algorithm using long division. The binary algorithm can be
3418 used only if the modulus is odd. On 32-bit systems, it is faster
3419 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3420 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3421 up to 450 bits. In 64-bit environments, the binary algorithm
3422 appears to be advantageous for much longer moduli; here we use it
3423 for moduli up to 2048 bits.
3426 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3427 could not support the combine flag in choice fields.
3430 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3431 extensions from a certificate request to the certificate.
3434 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3435 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3436 file: this allows the display of the certificate about to be
3437 signed to be customised, to allow certain fields to be included
3438 or excluded and extension details. The old system didn't display
3439 multicharacter strings properly, omitted fields not in the policy
3440 and couldn't display additional details such as extensions.
3443 *) Function EC_POINTs_mul for multiple scalar multiplication
3444 of an arbitrary number of elliptic curve points
3445 \sum scalars[i]*points[i],
3446 optionally including the generator defined for the EC_GROUP:
3447 scalar*generator + \sum scalars[i]*points[i].
3449 EC_POINT_mul is a simple wrapper function for the typical case
3450 that the point list has just one item (besides the optional
3454 *) First EC_METHODs for curves over GF(p):
3456 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3457 operations and provides various method functions that can also
3458 operate with faster implementations of modular arithmetic.
3460 EC_GFp_mont_method() reuses most functions that are part of
3461 EC_GFp_simple_method, but uses Montgomery arithmetic.
3463 [Bodo Moeller; point addition and point doubling
3464 implementation directly derived from source code provided by
3465 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3467 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3468 crypto/ec/ec_lib.c):
3470 Curves are EC_GROUP objects (with an optional group generator)
3471 based on EC_METHODs that are built into the library.
3473 Points are EC_POINT objects based on EC_GROUP objects.
3475 Most of the framework would be able to handle curves over arbitrary
3476 finite fields, but as there are no obvious types for fields other
3477 than GF(p), some functions are limited to that for now.
3480 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3481 that the file contains a complete HTTP response.
3484 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3485 change the def and num file printf format specifier from "%-40sXXX"
3486 to "%-39s XXX". The latter will always guarantee a space after the
3487 field while the former will cause them to run together if the field
3488 is 40 of more characters long.
3491 *) Constify the cipher and digest 'method' functions and structures
3492 and modify related functions to take constant EVP_MD and EVP_CIPHER
3496 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3497 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3500 *) Modify EVP_Digest*() routines so they now return values. Although the
3501 internal software routines can never fail additional hardware versions
3505 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3507 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3508 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3511 ERR_R_NESTED_ASN1_ERROR
3513 ERR_R_MISSING_ASN1_EOS
3514 were 4 .. 9, conflicting with
3515 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3517 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3518 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3520 Add new error code 'ERR_R_INTERNAL_ERROR'.
3523 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3527 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3528 sets the subject name for a new request or supersedes the
3529 subject name in a given request. Formats that can be parsed are
3530 'CN=Some Name, OU=myOU, C=IT'
3532 'CN=Some Name/OU=myOU/C=IT'.
3534 Add options '-batch' and '-verbose' to 'openssl req'.
3535 [Massimiliano Pala <madwolf@hackmasters.net>]
3537 *) Introduce the possibility to access global variables through
3538 functions on platform were that's the best way to handle exporting
3539 global variables in shared libraries. To enable this functionality,
3540 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3541 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3542 is normally done by Configure or something similar).
3544 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3545 in the source file (foo.c) like this:
3547 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3548 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3550 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3551 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3553 OPENSSL_DECLARE_GLOBAL(int,foo);
3554 #define foo OPENSSL_GLOBAL_REF(foo)
3555 OPENSSL_DECLARE_GLOBAL(double,bar);
3556 #define bar OPENSSL_GLOBAL_REF(bar)
3558 The #defines are very important, and therefore so is including the
3559 header file everywhere where the defined globals are used.
3561 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3562 of ASN.1 items, but that structure is a bit different.
3564 The largest change is in util/mkdef.pl which has been enhanced with
3565 better and easier to understand logic to choose which symbols should
3566 go into the Windows .def files as well as a number of fixes and code
3567 cleanup (among others, algorithm keywords are now sorted
3568 lexicographically to avoid constant rewrites).
3571 *) In BN_div() keep a copy of the sign of 'num' before writing the
3572 result to 'rm' because if rm==num the value will be overwritten
3573 and produce the wrong result if 'num' is negative: this caused
3574 problems with BN_mod() and BN_nnmod().
3577 *) Function OCSP_request_verify(). This checks the signature on an
3578 OCSP request and verifies the signer certificate. The signer
3579 certificate is just checked for a generic purpose and OCSP request
3583 *) Add OCSP_check_validity() function to check the validity of OCSP
3584 responses. OCSP responses are prepared in real time and may only
3585 be a few seconds old. Simply checking that the current time lies
3586 between thisUpdate and nextUpdate max reject otherwise valid responses
3587 caused by either OCSP responder or client clock inaccuracy. Instead
3588 we allow thisUpdate and nextUpdate to fall within a certain period of
3589 the current time. The age of the response can also optionally be
3590 checked. Two new options -validity_period and -status_age added to
3594 *) If signature or public key algorithm is unrecognized print out its
3595 OID rather that just UNKNOWN.
3598 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3599 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3600 ID to be generated from the issuer certificate alone which can then be
3601 passed to OCSP_id_issuer_cmp().
3604 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3605 ASN1 modules to export functions returning ASN1_ITEM pointers
3606 instead of the ASN1_ITEM structures themselves. This adds several
3607 new macros which allow the underlying ASN1 function/structure to
3608 be accessed transparently. As a result code should not use ASN1_ITEM
3609 references directly (such as &X509_it) but instead use the relevant
3610 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3611 use of the new ASN1 code on platforms where exporting structures
3612 is problematical (for example in shared libraries) but exporting
3613 functions returning pointers to structures is not.
3616 *) Add support for overriding the generation of SSL/TLS session IDs.
3617 These callbacks can be registered either in an SSL_CTX or per SSL.
3618 The purpose of this is to allow applications to control, if they wish,
3619 the arbitrary values chosen for use as session IDs, particularly as it
3620 can be useful for session caching in multiple-server environments. A
3621 command-line switch for testing this (and any client code that wishes
3622 to use such a feature) has been added to "s_server".
3623 [Geoff Thorpe, Lutz Jaenicke]
3625 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3626 of the form '#if defined(...) || defined(...) || ...' and
3627 '#if !defined(...) && !defined(...) && ...'. This also avoids
3628 the growing number of special cases it was previously handling.
3631 *) Make all configuration macros available for application by making
3632 sure they are available in opensslconf.h, by giving them names starting
3633 with "OPENSSL_" to avoid conflicts with other packages and by making
3634 sure e_os2.h will cover all platform-specific cases together with
3636 Additionally, it is now possible to define configuration/platform-
3637 specific names (called "system identities"). In the C code, these
3638 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3639 macro with the name beginning with "OPENSSL_SYS_", which is determined
3640 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3644 *) New option -set_serial to 'req' and 'x509' this allows the serial
3645 number to use to be specified on the command line. Previously self
3646 signed certificates were hard coded with serial number 0 and the
3647 CA options of 'x509' had to use a serial number in a file which was
3651 *) New options to 'ca' utility to support V2 CRL entry extensions.
3652 Currently CRL reason, invalidity date and hold instruction are
3653 supported. Add new CRL extensions to V3 code and some new objects.
3656 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3657 disable standard block padding (aka PKCS#5 padding) in the EVP
3658 API, which was previously mandatory. This means that the data is
3659 not padded in any way and so the total length much be a multiple
3660 of the block size, otherwise an error occurs.
3663 *) Initial (incomplete) OCSP SSL support.
3666 *) New function OCSP_parse_url(). This splits up a URL into its host,
3667 port and path components: primarily to parse OCSP URLs. New -url
3668 option to ocsp utility.
3671 *) New nonce behavior. The return value of OCSP_check_nonce() now
3672 reflects the various checks performed. Applications can decide
3673 whether to tolerate certain situations such as an absent nonce
3674 in a response when one was present in a request: the ocsp application
3675 just prints out a warning. New function OCSP_add1_basic_nonce()
3676 this is to allow responders to include a nonce in a response even if
3677 the request is nonce-less.
3680 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3681 skipped when using openssl x509 multiple times on a single input file,
3682 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3685 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3686 set string type: to handle setting ASN1_TIME structures. Fix ca
3687 utility to correctly initialize revocation date of CRLs.
3690 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3691 the clients preferred ciphersuites and rather use its own preferences.
3692 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3693 Internet Explorer by ensuring unchanged hash method during stepup.
3694 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3697 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3698 to aes and add a new 'exist' option to print out symbols that don't
3702 *) Additional options to ocsp utility to allow flags to be set and
3703 additional certificates supplied.
3706 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3707 OCSP client a number of certificate to only verify the response
3711 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3712 handle the new API. Currently only ECB, CBC modes supported. Add new
3715 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3716 Encryption Standard (AES) Ciphersuites for Transport Layer
3717 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3718 not enabled by default and were not part of the "ALL" ciphersuite
3719 alias because they were not yet official; they could be
3720 explicitly requested by specifying the "AESdraft" ciphersuite
3721 group alias. In the final release of OpenSSL 0.9.7, the group
3722 alias is called "AES" and is part of "ALL".)
3723 [Ben Laurie, Steve Henson, Bodo Moeller]
3725 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3726 request to response.
3729 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3730 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3731 extract information from a certificate request. OCSP_response_create()
3732 creates a response and optionally adds a basic response structure.
3733 OCSP_basic_add1_status() adds a complete single response to a basic
3734 response and returns the OCSP_SINGLERESP structure just added (to allow
3735 extensions to be included for example). OCSP_basic_add1_cert() adds a
3736 certificate to a basic response and OCSP_basic_sign() signs a basic
3737 response with various flags. New helper functions ASN1_TIME_check()
3738 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3739 (converts ASN1_TIME to GeneralizedTime).
3742 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3743 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3744 structure from a certificate. X509_pubkey_digest() digests the public_key
3745 contents: this is used in various key identifiers.
3748 *) Make sk_sort() tolerate a NULL argument.
3749 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3751 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3752 passed by the function are trusted implicitly. If any of them signed the
3753 response then it is assumed to be valid and is not verified.
3756 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3757 to data. This was previously part of the PKCS7 ASN1 code. This
3758 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3759 [Steve Henson, reported by Kenneth R. Robinette
3760 <support@securenetterm.com>]
3762 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3763 routines: without these tracing memory leaks is very painful.
3764 Fix leaks in PKCS12 and PKCS7 routines.
3767 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3768 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3769 effectively meant GeneralizedTime would never be used. Now it
3770 is initialised to -1 but X509_time_adj() now has to check the value
3771 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3772 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3773 [Steve Henson, reported by Kenneth R. Robinette
3774 <support@securenetterm.com>]
3776 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3777 result in a zero length in the ASN1_INTEGER structure which was
3778 not consistent with the structure when d2i_ASN1_INTEGER() was used
3779 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3780 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3781 where it did not print out a minus for negative ASN1_INTEGER.
3784 *) Add summary printout to ocsp utility. The various functions which
3785 convert status values to strings have been renamed to:
3786 OCSP_response_status_str(), OCSP_cert_status_str() and
3787 OCSP_crl_reason_str() and are no longer static. New options
3788 to verify nonce values and to disable verification. OCSP response
3789 printout format cleaned up.
3792 *) Add additional OCSP certificate checks. These are those specified
3793 in RFC2560. This consists of two separate checks: the CA of the
3794 certificate being checked must either be the OCSP signer certificate
3795 or the issuer of the OCSP signer certificate. In the latter case the
3796 OCSP signer certificate must contain the OCSP signing extended key
3797 usage. This check is performed by attempting to match the OCSP
3798 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3799 in the OCSP_CERTID structures of the response.
3802 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3803 and related routines. This uses the standard OpenSSL certificate
3804 verify routines to perform initial checks (just CA validity) and
3805 to obtain the certificate chain. Then additional checks will be
3806 performed on the chain. Currently the root CA is checked to see
3807 if it is explicitly trusted for OCSP signing. This is used to set
3808 a root CA as a global signing root: that is any certificate that
3809 chains to that CA is an acceptable OCSP signing certificate.
3812 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3813 extensions from a separate configuration file.
3814 As when reading extensions from the main configuration file,
3815 the '-extensions ...' option may be used for specifying the
3817 [Massimiliano Pala <madwolf@comune.modena.it>]
3819 *) New OCSP utility. Allows OCSP requests to be generated or
3820 read. The request can be sent to a responder and the output
3821 parsed, outputed or printed in text form. Not complete yet:
3822 still needs to check the OCSP response validity.
3825 *) New subcommands for 'openssl ca':
3826 'openssl ca -status <serial>' prints the status of the cert with
3827 the given serial number (according to the index file).
3828 'openssl ca -updatedb' updates the expiry status of certificates
3830 [Massimiliano Pala <madwolf@comune.modena.it>]
3832 *) New '-newreq-nodes' command option to CA.pl. This is like
3833 '-newreq', but calls 'openssl req' with the '-nodes' option
3834 so that the resulting key is not encrypted.
3835 [Damien Miller <djm@mindrot.org>]
3837 *) New configuration for the GNU Hurd.
3838 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3840 *) Initial code to implement OCSP basic response verify. This
3841 is currently incomplete. Currently just finds the signer's
3842 certificate and verifies the signature on the response.
3845 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3846 value of OPENSSLDIR. This is available via the new '-d' option
3847 to 'openssl version', and is also included in 'openssl version -a'.
3850 *) Allowing defining memory allocation callbacks that will be given
3851 file name and line number information in additional arguments
3852 (a const char* and an int). The basic functionality remains, as
3853 well as the original possibility to just replace malloc(),
3854 realloc() and free() by functions that do not know about these
3855 additional arguments. To register and find out the current
3856 settings for extended allocation functions, the following
3857 functions are provided:
3859 CRYPTO_set_mem_ex_functions
3860 CRYPTO_set_locked_mem_ex_functions
3861 CRYPTO_get_mem_ex_functions
3862 CRYPTO_get_locked_mem_ex_functions
3864 These work the same way as CRYPTO_set_mem_functions and friends.
3865 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3866 extended allocation function is enabled.
3867 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3868 a conventional allocation function is enabled.
3869 [Richard Levitte, Bodo Moeller]
3871 *) Finish off removing the remaining LHASH function pointer casts.
3872 There should no longer be any prototype-casting required when using
3873 the LHASH abstraction, and any casts that remain are "bugs". See
3874 the callback types and macros at the head of lhash.h for details
3875 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3878 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3879 If /dev/[u]random devices are not available or do not return enough
3880 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3882 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3883 /etc/entropy will be queried once each in this sequence, quering stops
3884 when enough entropy was collected without querying more sockets.
3887 *) Change the Unix RAND_poll() variant to be able to poll several
3888 random devices, as specified by DEVRANDOM, until a sufficient amount
3889 of data has been collected. We spend at most 10 ms on each file
3890 (select timeout) and read in non-blocking mode. DEVRANDOM now
3891 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3892 (previously it was just the string "/dev/urandom"), so on typical
3893 platforms the 10 ms delay will never occur.
3894 Also separate out the Unix variant to its own file, rand_unix.c.
3895 For VMS, there's a currently-empty rand_vms.c.
3898 *) Move OCSP client related routines to ocsp_cl.c. These
3899 provide utility functions which an application needing
3900 to issue a request to an OCSP responder and analyse the
3901 response will typically need: as opposed to those which an
3902 OCSP responder itself would need which will be added later.
3904 OCSP_request_sign() signs an OCSP request with an API similar
3905 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3906 response. OCSP_response_get1_basic() extracts basic response
3907 from response. OCSP_resp_find_status(): finds and extracts status
3908 information from an OCSP_CERTID structure (which will be created
3909 when the request structure is built). These are built from lower
3910 level functions which work on OCSP_SINGLERESP structures but
3911 wont normally be used unless the application wishes to examine
3912 extensions in the OCSP response for example.
3914 Replace nonce routines with a pair of functions.
3915 OCSP_request_add1_nonce() adds a nonce value and optionally
3916 generates a random value. OCSP_check_nonce() checks the
3917 validity of the nonce in an OCSP response.
3920 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3921 This doesn't copy the supplied OCSP_CERTID and avoids the
3922 need to free up the newly created id. Change return type
3923 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3924 This can then be used to add extensions to the request.
3925 Deleted OCSP_request_new(), since most of its functionality
3926 is now in OCSP_REQUEST_new() (and the case insensitive name
3927 clash) apart from the ability to set the request name which
3928 will be added elsewhere.
3931 *) Update OCSP API. Remove obsolete extensions argument from
3932 various functions. Extensions are now handled using the new
3933 OCSP extension code. New simple OCSP HTTP function which
3934 can be used to send requests and parse the response.
3937 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3938 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3939 uses the special reorder version of SET OF to sort the attributes
3940 and reorder them to match the encoded order. This resolves a long
3941 standing problem: a verify on a PKCS7 structure just after signing
3942 it used to fail because the attribute order did not match the
3943 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3944 it uses the received order. This is necessary to tolerate some broken
3945 software that does not order SET OF. This is handled by encoding
3946 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3947 to produce the required SET OF.
3950 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3951 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3952 files to get correct declarations of the ASN.1 item variables.
3955 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3956 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3957 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3958 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3959 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3960 ASN1_ITEM and no wrapper functions.
3963 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3964 replace the old function pointer based I/O routines. Change most of
3965 the *_d2i_bio() and *_d2i_fp() functions to use these.
3968 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3969 lines, recognice more "algorithms" that can be deselected, and make
3970 it complain about algorithm deselection that isn't recognised.
3973 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3974 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3975 to use new functions. Add NO_ASN1_OLD which can be set to remove
3976 some old style ASN1 functions: this can be used to determine if old
3977 code will still work when these eventually go away.
3980 *) New extension functions for OCSP structures, these follow the
3981 same conventions as certificates and CRLs.
3984 *) New function X509V3_add1_i2d(). This automatically encodes and
3985 adds an extension. Its behaviour can be customised with various
3986 flags to append, replace or delete. Various wrappers added for
3987 certifcates and CRLs.
3990 *) Fix to avoid calling the underlying ASN1 print routine when
3991 an extension cannot be parsed. Correct a typo in the
3992 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3995 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3996 entries for variables.
3999 *) Add functionality to apps/openssl.c for detecting locking
4000 problems: As the program is single-threaded, all we have
4001 to do is register a locking callback using an array for
4002 storing which locks are currently held by the program.
4005 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4006 SSL_get_ex_data_X509_STORE_idx(), which is used in
4007 ssl_verify_cert_chain() and thus can be called at any time
4008 during TLS/SSL handshakes so that thread-safety is essential.
4009 Unfortunately, the ex_data design is not at all suited
4010 for multi-threaded use, so it probably should be abolished.
4013 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4014 [Broadcom, tweaked and integrated by Geoff Thorpe]
4016 *) Move common extension printing code to new function
4017 X509V3_print_extensions(). Reorganise OCSP print routines and
4018 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4021 *) New function X509_signature_print() to remove duplication in some
4025 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4026 set (this was treated exactly the same as SET OF previously). This
4027 is used to reorder the STACK representing the structure to match the
4028 encoding. This will be used to get round a problem where a PKCS7
4029 structure which was signed could not be verified because the STACK
4030 order did not reflect the encoded order.
4033 *) Reimplement the OCSP ASN1 module using the new code.
4036 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4037 for its ASN1 operations. The old style function pointers still exist
4038 for now but they will eventually go away.
4041 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4042 completely replaces the old ASN1 functionality with a table driven
4043 encoder and decoder which interprets an ASN1_ITEM structure describing
4044 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4045 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4046 has also been converted to the new form.
4049 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4050 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4051 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4052 for negative moduli.
4055 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4056 of not touching the result's sign bit.
4059 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4063 *) Changed the LHASH code to use prototypes for callbacks, and created
4064 macros to declare and implement thin (optionally static) functions
4065 that provide type-safety and avoid function pointer casting for the
4066 type-specific callbacks.
4069 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4071 [Veers Staats <staatsvr@asc.hpc.mil>,
4072 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4074 *) Reformat the FAQ so the different questions and answers can be divided
4075 in sections depending on the subject.
4078 *) Have the zlib compression code load ZLIB.DLL dynamically under
4082 *) New function BN_mod_sqrt for computing square roots modulo a prime
4083 (using the probabilistic Tonelli-Shanks algorithm unless
4084 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4085 be handled deterministically).
4086 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4088 *) Make BN_mod_inverse faster by explicitly handling small quotients
4089 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4090 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4093 *) New function BN_kronecker.
4096 *) Fix BN_gcd so that it works on negative inputs; the result is
4097 positive unless both parameters are zero.
4098 Previously something reasonably close to an infinite loop was
4099 possible because numbers could be growing instead of shrinking
4100 in the implementation of Euclid's algorithm.
4103 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4104 sign of the number in question.
4106 Fix BN_is_word(a,w) to work correctly for w == 0.
4108 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4109 because its test if the absolute value of 'a' equals 'w'.
4110 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4111 it exists mostly for use in the implementations of BN_is_zero(),
4112 BN_is_one(), and BN_is_word().
4115 *) New function BN_swap.
4118 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4119 the exponentiation functions are more likely to produce reasonable
4120 results on negative inputs.
4123 *) Change BN_mod_mul so that the result is always non-negative.
4124 Previously, it could be negative if one of the factors was negative;
4125 I don't think anyone really wanted that behaviour.
4128 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4129 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4130 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4131 and add new functions:
4140 BN_mod_lshift1_quick
4144 These functions always generate non-negative results.
4146 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4147 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4149 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4150 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4151 be reduced modulo m.
4152 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4155 The following entry accidentily appeared in the CHANGES file
4156 distributed with OpenSSL 0.9.7. The modifications described in
4157 it do *not* apply to OpenSSL 0.9.7.
4159 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4160 was actually never needed) and in BN_mul(). The removal in BN_mul()
4161 required a small change in bn_mul_part_recursive() and the addition
4162 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4163 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4164 bn_sub_words() and bn_add_words() except they take arrays with
4169 *) In 'openssl passwd', verify passwords read from the terminal
4170 unless the '-salt' option is used (which usually means that
4171 verification would just waste user's time since the resulting
4172 hash is going to be compared with some given password hash)
4173 or the new '-noverify' option is used.
4175 This is an incompatible change, but it does not affect
4176 non-interactive use of 'openssl passwd' (passwords on the command
4177 line, '-stdin' option, '-in ...' option) and thus should not
4181 *) Remove all references to RSAref, since there's no more need for it.
4184 *) Make DSO load along a path given through an environment variable
4185 (SHLIB_PATH) with shl_load().
4188 *) Constify the ENGINE code as a result of BIGNUM constification.
4189 Also constify the RSA code and most things related to it. In a
4190 few places, most notable in the depth of the ASN.1 code, ugly
4191 casts back to non-const were required (to be solved at a later
4195 *) Make it so the openssl application has all engines loaded by default.
4198 *) Constify the BIGNUM routines a little more.
4201 *) Add the following functions:
4203 ENGINE_load_cswift()
4205 ENGINE_load_atalla()
4207 ENGINE_load_builtin_engines()
4209 That way, an application can itself choose if external engines that
4210 are built-in in OpenSSL shall ever be used or not. The benefit is
4211 that applications won't have to be linked with libdl or other dso
4212 libraries unless it's really needed.
4214 Changed 'openssl engine' to load all engines on demand.
4215 Changed the engine header files to avoid the duplication of some
4216 declarations (they differed!).
4219 *) 'openssl engine' can now list capabilities.
4222 *) Better error reporting in 'openssl engine'.
4225 *) Never call load_dh_param(NULL) in s_server.
4228 *) Add engine application. It can currently list engines by name and
4229 identity, and test if they are actually available.
4232 *) Improve RPM specification file by forcing symbolic linking and making
4233 sure the installed documentation is also owned by root.root.
4234 [Damien Miller <djm@mindrot.org>]
4236 *) Give the OpenSSL applications more possibilities to make use of
4237 keys (public as well as private) handled by engines.
4240 *) Add OCSP code that comes from CertCo.
4243 *) Add VMS support for the Rijndael code.
4246 *) Added untested support for Nuron crypto accelerator.
4249 *) Add support for external cryptographic devices. This code was
4250 previously distributed separately as the "engine" branch.
4251 [Geoff Thorpe, Richard Levitte]
4253 *) Rework the filename-translation in the DSO code. It is now possible to
4254 have far greater control over how a "name" is turned into a filename
4255 depending on the operating environment and any oddities about the
4256 different shared library filenames on each system.
4259 *) Support threads on FreeBSD-elf in Configure.
4262 *) Fix for SHA1 assembly problem with MASM: it produces
4263 warnings about corrupt line number information when assembling
4264 with debugging information. This is caused by the overlapping
4266 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4269 NCONF_get_number() has no error checking at all. As a replacement,
4270 NCONF_get_number_e() is defined (_e for "error checking") and is
4271 promoted strongly. The old NCONF_get_number is kept around for
4272 binary backward compatibility.
4273 Make it possible for methods to load from something other than a BIO,
4274 by providing a function pointer that is given a name instead of a BIO.
4275 For example, this could be used to load configuration data from an
4279 *) Fix for non blocking accept BIOs. Added new I/O special reason
4280 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4281 with non blocking I/O was not possible because no retry code was
4282 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4286 *) Added the beginnings of Rijndael support.
4289 *) Fix for bug in DirectoryString mask setting. Add support for
4290 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4291 to allow certificate printing to more controllable, additional
4292 'certopt' option to 'x509' to allow new printing options to be
4296 *) Clean old EAY MD5 hack from e_os.h.
4299 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4301 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4302 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4303 [Joe Orton, Steve Henson]
4305 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4307 *) Fix additional bug revealed by the NISCC test suite:
4309 Stop bug triggering large recursion when presented with
4310 certain ASN.1 tags (CVE-2003-0851)
4313 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4315 *) Fix various bugs revealed by running the NISCC test suite:
4317 Stop out of bounds reads in the ASN1 code when presented with
4318 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4320 If verify callback ignores invalid public key errors don't try to check
4321 certificate signature with the NULL public key.
4325 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4326 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4330 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4331 extra data after the compression methods not only for TLS 1.0
4332 but also for SSL 3.0 (as required by the specification).
4333 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4335 *) Change X509_certificate_type() to mark the key as exported/exportable
4336 when it's 512 *bits* long, not 512 bytes.
4339 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4341 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4342 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4343 a protocol version number mismatch like a decryption error
4344 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4347 *) Turn on RSA blinding by default in the default implementation
4348 to avoid a timing attack. Applications that don't want it can call
4349 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4350 They would be ill-advised to do so in most cases.
4351 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4353 *) Change RSA blinding code so that it works when the PRNG is not
4354 seeded (in this case, the secret RSA exponent is abused as
4355 an unpredictable seed -- if it is not unpredictable, there
4356 is no point in blinding anyway). Make RSA blinding thread-safe
4357 by remembering the creator's thread ID in rsa->blinding and
4358 having all other threads use local one-time blinding factors
4359 (this requires more computation than sharing rsa->blinding, but
4360 avoids excessive locking; and if an RSA object is not shared
4361 between threads, blinding will still be very fast).
4364 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4366 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4367 via timing by performing a MAC computation even if incorrrect
4368 block cipher padding has been found. This is a countermeasure
4369 against active attacks where the attacker has to distinguish
4370 between bad padding and a MAC verification error. (CVE-2003-0078)
4372 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4373 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4374 Martin Vuagnoux (EPFL, Ilion)]
4376 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4378 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4379 memory from it's contents. This is done with a counter that will
4380 place alternating values in each byte. This can be used to solve
4381 two issues: 1) the removal of calls to memset() by highly optimizing
4382 compilers, and 2) cleansing with other values than 0, since those can
4383 be read through on certain media, for example a swap space on disk.
4386 *) Bugfix: client side session caching did not work with external caching,
4387 because the session->cipher setting was not restored when reloading
4388 from the external cache. This problem was masked, when
4389 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4390 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4393 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4394 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4395 [Zeev Lieber <zeev-l@yahoo.com>]
4397 *) Undo an undocumented change introduced in 0.9.6e which caused
4398 repeated calls to OpenSSL_add_all_ciphers() and
4399 OpenSSL_add_all_digests() to be ignored, even after calling
4403 *) Change the default configuration reader to deal with last line not
4404 being properly terminated.
4407 *) Change X509_NAME_cmp() so it applies the special rules on handling
4408 DN values that are of type PrintableString, as well as RDNs of type
4409 emailAddress where the value has the type ia5String.
4410 [stefank@valicert.com via Richard Levitte]
4412 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4413 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4414 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4415 the bitwise-OR of the two for use by the majority of applications
4416 wanting this behaviour, and update the docs. The documented
4417 behaviour and actual behaviour were inconsistent and had been
4418 changing anyway, so this is more a bug-fix than a behavioural
4420 [Geoff Thorpe, diagnosed by Nadav Har'El]
4422 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4423 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4426 *) Fix initialization code race conditions in
4427 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4428 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4429 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4430 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4431 ssl2_get_cipher_by_char(),
4432 ssl3_get_cipher_by_char().
4433 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4435 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4436 the cached sessions are flushed, as the remove_cb() might use ex_data
4437 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4438 (see [openssl.org #212]).
4439 [Geoff Thorpe, Lutz Jaenicke]
4441 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4442 length, instead of the encoding length to d2i_ASN1_OBJECT.
4445 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4447 *) [In 0.9.6g-engine release:]
4448 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4449 [Lynn Gazis <lgazis@rainbow.com>]
4451 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4453 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4454 and get fix the header length calculation.
4455 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4456 Alon Kantor <alonk@checkpoint.com> (and others),
4459 *) Use proper error handling instead of 'assertions' in buffer
4460 overflow checks added in 0.9.6e. This prevents DoS (the
4461 assertions could call abort()).
4462 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4464 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4466 *) Add various sanity checks to asn1_get_length() to reject
4467 the ASN1 length bytes if they exceed sizeof(long), will appear
4468 negative or the content length exceeds the length of the
4470 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4472 *) Fix cipher selection routines: ciphers without encryption had no flags
4473 for the cipher strength set and where therefore not handled correctly
4474 by the selection routines (PR #130).
4477 *) Fix EVP_dsa_sha macro.
4481 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4482 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4483 that was added in OpenSSL 0.9.6d.
4485 As the countermeasure turned out to be incompatible with some
4486 broken SSL implementations, the new option is part of SSL_OP_ALL.
4487 SSL_OP_ALL is usually employed when compatibility with weird SSL
4488 implementations is desired (e.g. '-bugs' option to 's_client' and
4489 's_server'), so the new option is automatically set in many
4493 *) Changes in security patch:
4495 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4496 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4497 Air Force Materiel Command, USAF, under agreement number
4500 *) Add various sanity checks to asn1_get_length() to reject
4501 the ASN1 length bytes if they exceed sizeof(long), will appear
4502 negative or the content length exceeds the length of the
4503 supplied buffer. (CVE-2002-0659)
4504 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4506 *) Assertions for various potential buffer overflows, not known to
4508 [Ben Laurie (CHATS)]
4510 *) Various temporary buffers to hold ASCII versions of integers were
4511 too small for 64 bit platforms. (CVE-2002-0655)
4512 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4514 *) Remote buffer overflow in SSL3 protocol - an attacker could
4515 supply an oversized session ID to a client. (CVE-2002-0656)
4516 [Ben Laurie (CHATS)]
4518 *) Remote buffer overflow in SSL2 protocol - an attacker could
4519 supply an oversized client master key. (CVE-2002-0656)
4520 [Ben Laurie (CHATS)]
4522 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4524 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4525 encoded as NULL) with id-dsa-with-sha1.
4526 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4528 *) Check various X509_...() return values in apps/req.c.
4529 [Nils Larsch <nla@trustcenter.de>]
4531 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4532 an end-of-file condition would erronously be flagged, when the CRLF
4533 was just at the end of a processed block. The bug was discovered when
4534 processing data through a buffering memory BIO handing the data to a
4535 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4536 <ptsekov@syntrex.com> and Nedelcho Stanev.
4539 *) Implement a countermeasure against a vulnerability recently found
4540 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4541 before application data chunks to avoid the use of known IVs
4542 with data potentially chosen by the attacker.
4545 *) Fix length checks in ssl3_get_client_hello().
4548 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4549 to prevent ssl3_read_internal() from incorrectly assuming that
4550 ssl3_read_bytes() found application data while handshake
4551 processing was enabled when in fact s->s3->in_read_app_data was
4552 merely automatically cleared during the initial handshake.
4553 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4555 *) Fix object definitions for Private and Enterprise: they were not
4556 recognized in their shortname (=lowercase) representation. Extend
4557 obj_dat.pl to issue an error when using undefined keywords instead
4558 of silently ignoring the problem (Svenning Sorensen
4559 <sss@sss.dnsalias.net>).
4562 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4563 generators, i.e. generators other than 2 and 5. (Previously, the
4564 code did not properly initialise the 'add' and 'rem' values to
4565 BN_generate_prime().)
4567 In the new general case, we do not insist that 'generator' is
4568 actually a primitive root: This requirement is rather pointless;
4569 a generator of the order-q subgroup is just as good, if not
4573 *) Map new X509 verification errors to alerts. Discovered and submitted by
4574 Tom Wu <tom@arcot.com>.
4577 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4578 returning non-zero before the data has been completely received
4579 when using non-blocking I/O.
4580 [Bodo Moeller; problem pointed out by John Hughes]
4582 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4583 [Ben Laurie, Lutz Jaenicke]
4585 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4586 Yoram Zahavi <YoramZ@gilian.com>).
4589 *) Add information about CygWin 1.3 and on, and preserve proper
4590 configuration for the versions before that.
4591 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4593 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4594 check whether we deal with a copy of a session and do not delete from
4595 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4596 <izhar@checkpoint.com>.
4599 *) Do not store session data into the internal session cache, if it
4600 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4601 flag is set). Proposed by Aslam <aslam@funk.com>.
4604 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4608 *) [In 0.9.6d-engine release:]
4609 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4610 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4612 *) Add the configuration target linux-s390x.
4613 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4615 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4616 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4617 variable as an indication that a ClientHello message has been
4618 received. As the flag value will be lost between multiple
4619 invocations of ssl3_accept when using non-blocking I/O, the
4620 function may not be aware that a handshake has actually taken
4621 place, thus preventing a new session from being added to the
4624 To avoid this problem, we now set s->new_session to 2 instead of
4625 using a local variable.
4626 [Lutz Jaenicke, Bodo Moeller]
4628 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4629 if the SSL_R_LENGTH_MISMATCH error is detected.
4630 [Geoff Thorpe, Bodo Moeller]
4632 *) New 'shared_ldflag' column in Configure platform table.
4635 *) Fix EVP_CIPHER_mode macro.
4636 ["Dan S. Camper" <dan@bti.net>]
4638 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4639 type, we must throw them away by setting rr->length to 0.
4640 [D P Chang <dpc@qualys.com>]
4642 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4644 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4645 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4646 worked incorrectly for those cases where range = 10..._2 and
4647 3*range is two bits longer than range.)
4650 *) Only add signing time to PKCS7 structures if it is not already
4654 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4655 OBJ_ld_ce should be OBJ_id_ce.
4656 Also some ip-pda OIDs in crypto/objects/objects.txt were
4657 incorrect (cf. RFC 3039).
4658 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4660 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4661 returns early because it has nothing to do.
4662 [Andy Schneider <andy.schneider@bjss.co.uk>]
4664 *) [In 0.9.6c-engine release:]
4665 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4666 [Andy Schneider <andy.schneider@bjss.co.uk>]
4668 *) [In 0.9.6c-engine release:]
4669 Add support for Cryptographic Appliance's keyserver technology.
4670 (Use engine 'keyclient')
4671 [Cryptographic Appliances and Geoff Thorpe]
4673 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4674 is called via tools/c89.sh because arguments have to be
4675 rearranged (all '-L' options must appear before the first object
4677 [Richard Shapiro <rshapiro@abinitio.com>]
4679 *) [In 0.9.6c-engine release:]
4680 Add support for Broadcom crypto accelerator cards, backported
4682 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4684 *) [In 0.9.6c-engine release:]
4685 Add support for SureWare crypto accelerator cards from
4686 Baltimore Technologies. (Use engine 'sureware')
4687 [Baltimore Technologies and Mark Cox]
4689 *) [In 0.9.6c-engine release:]
4690 Add support for crypto accelerator cards from Accelerated
4691 Encryption Processing, www.aep.ie. (Use engine 'aep')
4692 [AEP Inc. and Mark Cox]
4694 *) Add a configuration entry for gcc on UnixWare.
4695 [Gary Benson <gbenson@redhat.com>]
4697 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4698 messages are stored in a single piece (fixed-length part and
4699 variable-length part combined) and fix various bugs found on the way.
4702 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4703 instead. BIO_gethostbyname() does not know what timeouts are
4704 appropriate, so entries would stay in cache even when they have
4706 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4708 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4709 faced with a pathologically small ClientHello fragment that does
4710 not contain client_version: Instead of aborting with an error,
4711 simply choose the highest available protocol version (i.e.,
4712 TLS 1.0 unless it is disabled). In practice, ClientHello
4713 messages are never sent like this, but this change gives us
4714 strictly correct behaviour at least for TLS.
4717 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4718 never resets s->method to s->ctx->method when called from within
4719 one of the SSL handshake functions.
4720 [Bodo Moeller; problem pointed out by Niko Baric]
4722 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4723 (sent using the client's version number) if client_version is
4724 smaller than the protocol version in use. Also change
4725 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4726 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4727 the client will at least see that alert.
4730 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4734 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4735 client receives HelloRequest while in a handshake.
4736 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4738 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4739 should end in 'break', not 'goto end' which circuments various
4740 cleanups done in state SSL_ST_OK. But session related stuff
4741 must be disabled for SSL_ST_OK in the case that we just sent a
4744 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4745 before just sending a HelloRequest.
4746 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4748 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4749 reveal whether illegal block cipher padding was found or a MAC
4750 verification error occured. (Neither SSLerr() codes nor alerts
4751 are directly visible to potential attackers, but the information
4752 may leak via logfiles.)
4754 Similar changes are not required for the SSL 2.0 implementation
4755 because the number of padding bytes is sent in clear for SSL 2.0,
4756 and the extra bytes are just ignored. However ssl/s2_pkt.c
4757 failed to verify that the purported number of padding bytes is in
4761 *) Add OpenUNIX-8 support including shared libraries
4762 (Boyd Lynn Gerber <gerberb@zenez.com>).
4765 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4766 'wristwatch attack' using huge encoding parameters (cf.
4767 James H. Manger's CRYPTO 2001 paper). Note that the
4768 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4769 encoding parameters and hence was not vulnerable.
4772 *) BN_sqr() bug fix.
4773 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4775 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4776 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4777 followed by modular reduction.
4778 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4780 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4781 equivalent based on BN_pseudo_rand() instead of BN_rand().
4784 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4785 This function was broken, as the check for a new client hello message
4786 to handle SGC did not allow these large messages.
4787 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4790 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4793 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4794 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4797 *) Rework the configuration and shared library support for Tru64 Unix.
4798 The configuration part makes use of modern compiler features and
4799 still retains old compiler behavior for those that run older versions
4800 of the OS. The shared library support part includes a variant that
4801 uses the RPATH feature, and is available through the special
4802 configuration target "alpha-cc-rpath", which will never be selected
4804 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4806 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4807 with the same message size as in ssl3_get_certificate_request().
4808 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4809 messages might inadvertently be reject as too long.
4810 [Petr Lampa <lampa@fee.vutbr.cz>]
4812 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4815 *) Modified SSL library such that the verify_callback that has been set
4816 specificly for an SSL object with SSL_set_verify() is actually being
4817 used. Before the change, a verify_callback set with this function was
4818 ignored and the verify_callback() set in the SSL_CTX at the time of
4819 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4820 to allow the necessary settings.
4823 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4824 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4825 done automatically (in contradiction to the requirements of the C
4826 standard). This made problems when used from OpenSSH.
4829 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4830 dh->length and always used
4832 BN_rand_range(priv_key, dh->p).
4834 BN_rand_range() is not necessary for Diffie-Hellman, and this
4835 specific range makes Diffie-Hellman unnecessarily inefficient if
4836 dh->length (recommended exponent length) is much smaller than the
4837 length of dh->p. We could use BN_rand_range() if the order of
4838 the subgroup was stored in the DH structure, but we only have
4843 BN_rand(priv_key, l, ...)
4845 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4851 RSA_eay_public_encrypt
4852 RSA_eay_private_decrypt
4853 RSA_eay_private_encrypt (signing)
4854 RSA_eay_public_decrypt (signature verification)
4856 (default implementations for RSA_public_encrypt,
4857 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4858 always reject numbers >= n.
4861 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4862 to synchronize access to 'locking_thread'. This is necessary on
4863 systems where access to 'locking_thread' (an 'unsigned long'
4864 variable) is not atomic.
4867 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4868 *before* setting the 'crypto_lock_rand' flag. The previous code had
4869 a race condition if 0 is a valid thread ID.
4870 [Travis Vitek <vitek@roguewave.com>]
4872 *) Add support for shared libraries under Irix.
4873 [Albert Chin-A-Young <china@thewrittenword.com>]
4875 *) Add configuration option to build on Linux on both big-endian and
4877 [Ralf Baechle <ralf@uni-koblenz.de>]
4879 *) Add the possibility to create shared libraries on HP-UX.
4882 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4884 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4885 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4886 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4887 PRNG state recovery was possible based on the output of
4888 one PRNG request appropriately sized to gain knowledge on
4889 'md' followed by enough consecutive 1-byte PRNG requests
4890 to traverse all of 'state'.
4892 1. When updating 'md_local' (the current thread's copy of 'md')
4893 during PRNG output generation, hash all of the previous
4894 'md_local' value, not just the half used for PRNG output.
4896 2. Make the number of bytes from 'state' included into the hash
4897 independent from the number of PRNG bytes requested.
4899 The first measure alone would be sufficient to avoid
4900 Markku-Juhani's attack. (Actually it had never occurred
4901 to me that the half of 'md_local' used for chaining was the
4902 half from which PRNG output bytes were taken -- I had always
4903 assumed that the secret half would be used.) The second
4904 measure makes sure that additional data from 'state' is never
4905 mixed into 'md_local' in small portions; this heuristically
4906 further strengthens the PRNG.
4909 *) Fix crypto/bn/asm/mips3.s.
4912 *) When only the key is given to "enc", the IV is undefined. Print out
4913 an error message in this case.
4916 *) Handle special case when X509_NAME is empty in X509 printing routines.
4919 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4920 positive and less than q.
4923 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4924 used: it isn't thread safe and the add_lock_callback should handle
4926 [Paul Rose <Paul.Rose@bridge.com>]
4928 *) Verify that incoming data obeys the block size in
4929 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4933 [Ulf Möller, Bodo Möller]
4935 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4936 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4937 when fixing the server behaviour for backwards-compatible 'client
4938 hello' messages. (Note that the attack is impractical against
4939 SSL 3.0 and TLS 1.0 anyway because length and version checking
4940 means that the probability of guessing a valid ciphertext is
4941 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4944 Before 0.9.5, the countermeasure (hide the error by generating a
4945 random 'decryption result') did not work properly because
4946 ERR_clear_error() was missing, meaning that SSL_get_error() would
4947 detect the supposedly ignored error.
4949 Both problems are now fixed.
4952 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4953 (previously it was 1024).
4956 *) Fix for compatibility mode trust settings: ignore trust settings
4957 unless some valid trust or reject settings are present.
4960 *) Fix for blowfish EVP: its a variable length cipher.
4963 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4964 parameters in DSA public key structures and return an error in the
4965 DSA routines if parameters are absent.
4968 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4969 in the current directory if neither $RANDFILE nor $HOME was set.
4970 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4971 caused some confusion to Windows users who haven't defined $HOME.
4972 Thus RAND_file_name() is changed again: e_os.h can define a
4973 DEFAULT_HOME, which will be used if $HOME is not set.
4974 For Windows, we use "C:"; on other platforms, we still require
4975 environment variables.
4977 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4978 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4979 having multiple threads call RAND_poll() concurrently.
4982 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4983 combination of a flag and a thread ID variable.
4984 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4985 flag), *other* threads can enter ssleay_add_bytes without obeying
4986 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4987 that they do not hold after the first thread unsets add_do_not_lock).
4990 *) Change bctest again: '-x' expressions are not available in all
4994 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4996 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4997 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4999 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5000 the default extension for executables, if any. Also, make the perl
5001 scripts that use symlink() to test if it really exists and use "cp"
5002 if it doesn't. All this made OpenSSL compilable and installable in
5006 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5007 If SEQUENCE is length is indefinite just set c->slen to the total
5008 amount of data available.
5009 [Steve Henson, reported by shige@FreeBSD.org]
5010 [This change does not apply to 0.9.7.]
5012 *) Change bctest to avoid here-documents inside command substitution
5013 (workaround for FreeBSD /bin/sh bug).
5014 For compatibility with Ultrix, avoid shell functions (introduced
5015 in the bctest version that searches along $PATH).
5018 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5019 with des_encrypt() defined on some operating systems, like Solaris
5023 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5024 On the Importance of Eliminating Errors in Cryptographic
5025 Computations, J. Cryptology 14 (2001) 2, 101-119,
5026 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5029 *) MIPS assembler BIGNUM division bug fix.
5032 *) Disabled incorrect Alpha assembler code.
5035 *) Fix PKCS#7 decode routines so they correctly update the length
5036 after reading an EOC for the EXPLICIT tag.
5038 [This change does not apply to 0.9.7.]
5040 *) Fix bug in PKCS#12 key generation routines. This was triggered
5041 if a 3DES key was generated with a 0 initial byte. Include
5042 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5043 (but broken) behaviour.
5046 *) Enhance bctest to search for a working bc along $PATH and print
5048 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5050 *) Fix memory leaks in err.c: free err_data string if necessary;
5051 don't write to the wrong index in ERR_set_error_data.
5054 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5058 *) Replace rdtsc with _emit statements for VC++ version 5.
5059 [Jeremy Cooper <jeremy@baymoo.org>]
5061 *) Make it possible to reuse SSLv2 sessions.
5064 *) In copy_email() check for >= 0 as a return value for
5065 X509_NAME_get_index_by_NID() since 0 is a valid index.
5066 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5068 *) Avoid coredump with unsupported or invalid public keys by checking if
5069 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5070 PKCS7_verify() fails with non detached data.
5073 *) Don't use getenv in library functions when run as setuid/setgid.
5074 New function OPENSSL_issetugid().
5077 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5078 due to incorrect handling of multi-threading:
5080 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5082 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5084 3. Count how many times MemCheck_off() has been called so that
5085 nested use can be treated correctly. This also avoids
5086 inband-signalling in the previous code (which relied on the
5087 assumption that thread ID 0 is impossible).
5090 *) Add "-rand" option also to s_client and s_server.
5093 *) Fix CPU detection on Irix 6.x.
5094 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5095 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5097 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5100 [This change does not apply to 0.9.7.]
5102 *) Use the cached encoding of an X509_NAME structure rather than
5103 copying it. This is apparently the reason for the libsafe "errors"
5104 but the code is actually correct.
5107 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5108 Bleichenbacher's DSA attack.
5109 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5110 to be set and top=0 forces the highest bit to be set; top=-1 is new
5111 and leaves the highest bit random.
5112 [Ulf Moeller, Bodo Moeller]
5114 *) In the NCONF_...-based implementations for CONF_... queries
5115 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5116 a temporary CONF structure with the data component set to NULL
5117 (which gives segmentation faults in lh_retrieve).
5118 Instead, use NULL for the CONF pointer in CONF_get_string and
5119 CONF_get_number (which may use environment variables) and directly
5120 return NULL from CONF_get_section.
5123 *) Fix potential buffer overrun for EBCDIC.
5126 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5127 keyUsage if basicConstraints absent for a CA.
5130 *) Make SMIME_write_PKCS7() write mail header values with a format that
5131 is more generally accepted (no spaces before the semicolon), since
5132 some programs can't parse those values properly otherwise. Also make
5133 sure BIO's that break lines after each write do not create invalid
5137 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5138 macros previously used would not encode an empty SEQUENCE OF
5139 and break the signature.
5141 [This change does not apply to 0.9.7.]
5143 *) Zero the premaster secret after deriving the master secret in
5147 *) Add some EVP_add_digest_alias registrations (as found in
5148 OpenSSL_add_all_digests()) to SSL_library_init()
5149 aka OpenSSL_add_ssl_algorithms(). This provides improved
5150 compatibility with peers using X.509 certificates
5151 with unconventional AlgorithmIdentifier OIDs.
5154 *) Fix for Irix with NO_ASM.
5155 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5157 *) ./config script fixes.
5158 [Ulf Moeller, Richard Levitte]
5160 *) Fix 'openssl passwd -1'.
5163 *) Change PKCS12_key_gen_asc() so it can cope with non null
5164 terminated strings whose length is passed in the passlen
5165 parameter, for example from PEM callbacks. This was done
5166 by adding an extra length parameter to asc2uni().
5167 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5169 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5170 call failed, free the DSA structure.
5173 *) Fix to uni2asc() to cope with zero length Unicode strings.
5174 These are present in some PKCS#12 files.
5177 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5178 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5179 when writing a 32767 byte record.
5180 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5182 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5183 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5185 (RSA objects have a reference count access to which is protected
5186 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5187 so they are meant to be shared between threads.)
5188 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5189 "Reddie, Steven" <Steven.Reddie@ca.com>]
5191 *) Fix a deadlock in CRYPTO_mem_leaks().
5194 *) Use better test patterns in bntest.
5197 *) rand_win.c fix for Borland C.
5200 *) BN_rshift bugfix for n == 0.
5203 *) Add a 'bctest' script that checks for some known 'bc' bugs
5204 so that 'make test' does not abort just because 'bc' is broken.
5207 *) Store verify_result within SSL_SESSION also for client side to
5208 avoid potential security hole. (Re-used sessions on the client side
5209 always resulted in verify_result==X509_V_OK, not using the original
5210 result of the server certificate verification.)
5213 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5214 SSL3_RT_APPLICATION_DATA, return 0.
5215 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5219 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5220 releases, have been re-implemented by renaming the previous
5221 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5222 and ssl3_read_internal, respectively, and adding 'peek' parameters
5223 to them. The new ssl[23]_{read,peek} functions are calls to
5224 ssl[23]_read_internal with the 'peek' flag set appropriately.
5225 A 'peek' parameter has also been added to ssl3_read_bytes, which
5226 does the actual work for ssl3_read_internal.
5229 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5230 the method-specific "init()" handler. Also clean up ex_data after
5231 calling the method-specific "finish()" handler. Previously, this was
5232 happening the other way round.
5235 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5236 The previous value, 12, was not always sufficient for BN_mod_exp().
5239 *) Make sure that shared libraries get the internal name engine with
5240 the full version number and not just 0. This should mark the
5241 shared libraries as not backward compatible. Of course, this should
5242 be changed again when we can guarantee backward binary compatibility.
5245 *) Fix typo in get_cert_by_subject() in by_dir.c
5246 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5248 *) Rework the system to generate shared libraries:
5250 - Make note of the expected extension for the shared libraries and
5251 if there is a need for symbolic links from for example libcrypto.so.0
5252 to libcrypto.so.0.9.7. There is extended info in Configure for
5255 - Make as few rebuilds of the shared libraries as possible.
5257 - Still avoid linking the OpenSSL programs with the shared libraries.
5259 - When installing, install the shared libraries separately from the
5263 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5265 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5266 and not in SSL_clear because the latter is also used by the
5267 accept/connect functions; previously, the settings made by
5268 SSL_set_read_ahead would be lost during the handshake.
5269 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5271 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5272 Previously, it would create entries for disableed algorithms no
5276 *) Added several new manual pages for SSL_* function.
5279 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5281 *) In ssl23_get_client_hello, generate an error message when faced
5282 with an initial SSL 3.0/TLS record that is too small to contain the
5283 first two bytes of the ClientHello message, i.e. client_version.
5284 (Note that this is a pathologic case that probably has never happened
5285 in real life.) The previous approach was to use the version number
5286 from the record header as a substitute; but our protocol choice
5287 should not depend on that one because it is not authenticated
5288 by the Finished messages.
5291 *) More robust randomness gathering functions for Windows.
5292 [Jeffrey Altman <jaltman@columbia.edu>]
5294 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5295 not set then we don't setup the error code for issuer check errors
5296 to avoid possibly overwriting other errors which the callback does
5297 handle. If an application does set the flag then we assume it knows
5298 what it is doing and can handle the new informational codes
5302 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5303 a general "ANY" type, as such it should be able to decode anything
5304 including tagged types. However it didn't check the class so it would
5305 wrongly interpret tagged types in the same way as their universal
5306 counterpart and unknown types were just rejected. Changed so that the
5307 tagged and unknown types are handled in the same way as a SEQUENCE:
5308 that is the encoding is stored intact. There is also a new type
5309 "V_ASN1_OTHER" which is used when the class is not universal, in this
5310 case we have no idea what the actual type is so we just lump them all
5314 *) On VMS, stdout may very well lead to a file that is written to
5315 in a record-oriented fashion. That means that every write() will
5316 write a separate record, which will be read separately by the
5317 programs trying to read from it. This can be very confusing.
5319 The solution is to put a BIO filter in the way that will buffer
5320 text until a linefeed is reached, and then write everything a
5321 line at a time, so every record written will be an actual line,
5322 not chunks of lines and not (usually doesn't happen, but I've
5323 seen it once) several lines in one record. BIO_f_linebuffer() is
5326 Currently, it's a VMS-only method, because that's where it has
5327 been tested well enough.
5330 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5331 it can return incorrect results.
5332 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5333 but it was in 0.9.6-beta[12].)
5336 *) Disable the check for content being present when verifying detached
5337 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5338 include zero length content when signing messages.
5341 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5342 BIO_ctrl (for BIO pairs).
5345 *) Add DSO method for VMS.
5348 *) Bug fix: Montgomery multiplication could produce results with the
5352 *) Add RPM specification openssl.spec and modify it to build three
5353 packages. The default package contains applications, application
5354 documentation and run-time libraries. The devel package contains
5355 include files, static libraries and function documentation. The
5356 doc package contains the contents of the doc directory. The original
5357 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5360 *) Add a large number of documentation files for many SSL routines.
5361 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5363 *) Add a configuration entry for Sony News 4.
5364 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5366 *) Don't set the two most significant bits to one when generating a
5367 random number < q in the DSA library.
5370 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5371 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5372 the underlying transport is blocking) if a handshake took place.
5373 (The default behaviour is needed by applications such as s_client
5374 and s_server that use select() to determine when to use SSL_read;
5375 but for applications that know in advance when to expect data, it
5376 just makes things more complicated.)
5379 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5383 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5384 work better on such systems.
5385 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5387 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5388 Update PKCS12_parse() so it copies the friendlyName and the
5389 keyid to the certificates aux info.
5392 *) Fix bug in PKCS7_verify() which caused an infinite loop
5393 if there was more than one signature.
5394 [Sven Uszpelkat <su@celocom.de>]
5396 *) Major change in util/mkdef.pl to include extra information
5397 about each symbol, as well as presentig variables as well
5398 as functions. This change means that there's n more need
5399 to rebuild the .num files when some algorithms are excluded.
5402 *) Allow the verify time to be set by an application,
5403 rather than always using the current time.
5406 *) Phase 2 verify code reorganisation. The certificate
5407 verify code now looks up an issuer certificate by a
5408 number of criteria: subject name, authority key id
5409 and key usage. It also verifies self signed certificates
5410 by the same criteria. The main comparison function is
5411 X509_check_issued() which performs these checks.
5413 Lot of changes were necessary in order to support this
5414 without completely rewriting the lookup code.
5416 Authority and subject key identifier are now cached.
5418 The LHASH 'certs' is X509_STORE has now been replaced
5419 by a STACK_OF(X509_OBJECT). This is mainly because an
5420 LHASH can't store or retrieve multiple objects with
5421 the same hash value.
5423 As a result various functions (which were all internal
5424 use only) have changed to handle the new X509_STORE
5425 structure. This will break anything that messed round
5426 with X509_STORE internally.
5428 The functions X509_STORE_add_cert() now checks for an
5429 exact match, rather than just subject name.
5431 The X509_STORE API doesn't directly support the retrieval
5432 of multiple certificates matching a given criteria, however
5433 this can be worked round by performing a lookup first
5434 (which will fill the cache with candidate certificates)
5435 and then examining the cache for matches. This is probably
5436 the best we can do without throwing out X509_LOOKUP
5437 entirely (maybe later...).
5439 The X509_VERIFY_CTX structure has been enhanced considerably.
5441 All certificate lookup operations now go via a get_issuer()
5442 callback. Although this currently uses an X509_STORE it
5443 can be replaced by custom lookups. This is a simple way
5444 to bypass the X509_STORE hackery necessary to make this
5445 work and makes it possible to use more efficient techniques
5446 in future. A very simple version which uses a simple
5447 STACK for its trusted certificate store is also provided
5448 using X509_STORE_CTX_trusted_stack().
5450 The verify_cb() and verify() callbacks now have equivalents
5451 in the X509_STORE_CTX structure.
5453 X509_STORE_CTX also has a 'flags' field which can be used
5454 to customise the verify behaviour.
5457 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5458 excludes S/MIME capabilities.
5461 *) When a certificate request is read in keep a copy of the
5462 original encoding of the signed data and use it when outputing
5463 again. Signatures then use the original encoding rather than
5464 a decoded, encoded version which may cause problems if the
5465 request is improperly encoded.
5468 *) For consistency with other BIO_puts implementations, call
5469 buffer_write(b, ...) directly in buffer_puts instead of calling
5472 In BIO_puts, increment b->num_write as in BIO_write.
5473 [Peter.Sylvester@EdelWeb.fr]
5475 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5476 BN_zero, we may not return a BIGNUM with an array consisting of
5480 *) Avoid calling abort() from within the library when problems are
5481 detected, except if preprocessor symbols have been defined
5482 (such as REF_CHECK, BN_DEBUG etc.).
5485 *) New openssl application 'rsautl'. This utility can be
5486 used for low level RSA operations. DER public key
5487 BIO/fp routines also added.
5490 *) New Configure entry and patches for compiling on QNX 4.
5491 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5493 *) A demo state-machine implementation was sponsored by
5494 Nuron (http://www.nuron.com/) and is now available in
5495 demos/state_machine.
5498 *) New options added to the 'dgst' utility for signature
5499 generation and verification.
5502 *) Unrecognized PKCS#7 content types are now handled via a
5503 catch all ASN1_TYPE structure. This allows unsupported
5504 types to be stored as a "blob" and an application can
5505 encode and decode it manually.
5508 *) Fix various signed/unsigned issues to make a_strex.c
5510 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5512 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5513 length if passed a buffer. ASN1_INTEGER_to_BN failed
5514 if passed a NULL BN and its argument was negative.
5515 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5517 *) Modification to PKCS#7 encoding routines to output definite
5518 length encoding. Since currently the whole structures are in
5519 memory there's not real point in using indefinite length
5520 constructed encoding. However if OpenSSL is compiled with
5521 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5524 *) Added BIO_vprintf() and BIO_vsnprintf().
5527 *) Added more prefixes to parse for in the the strings written
5528 through a logging bio, to cover all the levels that are available
5529 through syslog. The prefixes are now:
5531 PANIC, EMERG, EMR => LOG_EMERG
5532 ALERT, ALR => LOG_ALERT
5533 CRIT, CRI => LOG_CRIT
5534 ERROR, ERR => LOG_ERR
5535 WARNING, WARN, WAR => LOG_WARNING
5536 NOTICE, NOTE, NOT => LOG_NOTICE
5537 INFO, INF => LOG_INFO
5538 DEBUG, DBG => LOG_DEBUG
5540 and as before, if none of those prefixes are present at the
5541 beginning of the string, LOG_ERR is chosen.
5543 On Win32, the LOG_* levels are mapped according to this:
5545 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5546 LOG_WARNING => EVENTLOG_WARNING_TYPE
5547 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5551 *) Made it possible to reconfigure with just the configuration
5552 argument "reconf" or "reconfigure". The command line arguments
5553 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5554 and are retrieved from there when reconfiguring.
5558 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5560 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5563 *) The obj_dat.pl script was messing up the sorting of object
5564 names. The reason was that it compared the quoted version
5565 of strings as a result "OCSP" > "OCSP Signing" because
5566 " > SPACE. Changed script to store unquoted versions of
5567 names and add quotes on output. It was also omitting some
5568 names from the lookup table if they were given a default
5569 value (that is if SN is missing it is given the same
5570 value as LN and vice versa), these are now added on the
5571 grounds that if an object has a name we should be able to
5572 look it up. Finally added warning output when duplicate
5573 short or long names are found.
5576 *) Changes needed for Tandem NSK.
5577 [Scott Uroff <scott@xypro.com>]
5579 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5580 RSA_padding_check_SSLv23(), special padding was never detected
5581 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5582 version rollback attacks was not effective.
5584 In s23_clnt.c, don't use special rollback-attack detection padding
5585 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5586 client; similarly, in s23_srvr.c, don't do the rollback check if
5587 SSL 2.0 is the only protocol enabled in the server.
5590 *) Make it possible to get hexdumps of unprintable data with 'openssl
5591 asn1parse'. By implication, the functions ASN1_parse_dump() and
5592 BIO_dump_indent() are added.
5595 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5596 these print out strings and name structures based on various
5597 flags including RFC2253 support and proper handling of
5598 multibyte characters. Added options to the 'x509' utility
5599 to allow the various flags to be set.
5602 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5603 Also change the functions X509_cmp_current_time() and
5604 X509_gmtime_adj() work with an ASN1_TIME structure,
5605 this will enable certificates using GeneralizedTime in validity
5606 dates to be checked.
5609 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5610 negative public key encodings) on by default,
5611 NO_NEG_PUBKEY_BUG can be set to disable it.
5614 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5615 content octets. An i2c_ASN1_OBJECT is unnecessary because
5616 the encoding can be trivially obtained from the structure.
5619 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5620 not read locks (CRYPTO_r_[un]lock).
5623 *) A first attempt at creating official support for shared
5624 libraries through configuration. I've kept it so the
5625 default is static libraries only, and the OpenSSL programs
5626 are always statically linked for now, but there are
5627 preparations for dynamic linking in place.
5628 This has been tested on Linux and Tru64.
5631 *) Randomness polling function for Win9x, as described in:
5632 Peter Gutmann, Software Generation of Practically Strong
5636 *) Fix so PRNG is seeded in req if using an already existing
5640 *) New options to smime application. -inform and -outform
5641 allow alternative formats for the S/MIME message including
5642 PEM and DER. The -content option allows the content to be
5643 specified separately. This should allow things like Netscape
5644 form signing output easier to verify.
5647 *) Fix the ASN1 encoding of tags using the 'long form'.
5650 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5651 STRING types. These convert content octets to and from the
5652 underlying type. The actual tag and length octets are
5653 already assumed to have been read in and checked. These
5654 are needed because all other string types have virtually
5655 identical handling apart from the tag. By having versions
5656 of the ASN1 functions that just operate on content octets
5657 IMPLICIT tagging can be handled properly. It also allows
5658 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5659 and ASN1_INTEGER are identical apart from the tag.
5662 *) Change the handling of OID objects as follows:
5664 - New object identifiers are inserted in objects.txt, following
5665 the syntax given in objects.README.
5666 - objects.pl is used to process obj_mac.num and create a new
5668 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5671 This is currently kind of a hack, and the perl code in objects.pl
5672 isn't very elegant, but it works as I intended. The simplest way
5673 to check that it worked correctly is to look in obj_dat.h and
5674 check the array nid_objs and make sure the objects haven't moved
5675 around (this is important!). Additions are OK, as well as
5676 consistent name changes.
5679 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5682 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5683 The given file adds to whatever has already been seeded into the
5684 random pool through the RANDFILE configuration file option or
5685 environment variable, or the default random state file.
5688 *) mkstack.pl now sorts each macro group into lexical order.
5689 Previously the output order depended on the order the files
5690 appeared in the directory, resulting in needless rewriting
5694 *) Patches to make OpenSSL compile under Win32 again. Mostly
5695 work arounds for the VC++ problem that it treats func() as
5696 func(void). Also stripped out the parts of mkdef.pl that
5697 added extra typesafe functions: these no longer exist.
5700 *) Reorganisation of the stack code. The macros are now all
5701 collected in safestack.h . Each macro is defined in terms of
5702 a "stack macro" of the form SKM_<name>(type, a, b). The
5703 DEBUG_SAFESTACK is now handled in terms of function casts,
5704 this has the advantage of retaining type safety without the
5705 use of additional functions. If DEBUG_SAFESTACK is not defined
5706 then the non typesafe macros are used instead. Also modified the
5707 mkstack.pl script to handle the new form. Needs testing to see
5708 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5709 the default if no major problems. Similar behaviour for ASN1_SET_OF
5710 and PKCS12_STACK_OF.
5713 *) When some versions of IIS use the 'NET' form of private key the
5714 key derivation algorithm is different. Normally MD5(password) is
5715 used as a 128 bit RC4 key. In the modified case
5716 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5717 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5718 as the old Netscape_RSA functions except they have an additional
5719 'sgckey' parameter which uses the modified algorithm. Also added
5720 an -sgckey command line option to the rsa utility. Thanks to
5721 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5722 algorithm to openssl-dev.
5725 *) The evp_local.h macros were using 'c.##kname' which resulted in
5726 invalid expansion on some systems (SCO 5.0.5 for example).
5727 Corrected to 'c.kname'.
5728 [Phillip Porch <root@theporch.com>]
5730 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5731 a STACK of email addresses from a certificate or request, these look
5732 in the subject name and the subject alternative name extensions and
5733 omit any duplicate addresses.
5736 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5737 This makes DSA verification about 2 % faster.
5740 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5741 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5742 plus overhead for 1024 bit moduli).
5743 This makes exponentiations about 0.5 % faster for 1024 bit
5744 exponents (as measured by "openssl speed rsa2048").
5747 *) Rename memory handling macros to avoid conflicts with other
5749 Malloc => OPENSSL_malloc
5750 Malloc_locked => OPENSSL_malloc_locked
5751 Realloc => OPENSSL_realloc
5752 Free => OPENSSL_free
5755 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5756 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5759 *) CygWin32 support.
5760 [John Jarvie <jjarvie@newsguy.com>]
5762 *) The type-safe stack code has been rejigged. It is now only compiled
5763 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5764 by default all type-specific stack functions are "#define"d back to
5765 standard stack functions. This results in more streamlined output
5766 but retains the type-safety checking possibilities of the original
5770 *) The STACK code has been cleaned up, and certain type declarations
5771 that didn't make a lot of sense have been brought in line. This has
5772 also involved a cleanup of sorts in safestack.h to more correctly
5773 map type-safe stack functions onto their plain stack counterparts.
5774 This work has also resulted in a variety of "const"ifications of
5775 lots of the code, especially "_cmp" operations which should normally
5776 be prototyped with "const" parameters anyway.
5779 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5780 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5781 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5782 where all of 'md' is used each time the PRNG is used, but 'state'
5783 is used only indexed by a cyclic counter. As entropy may not be
5784 well distributed from the beginning, 'md' is important as a
5785 chaining variable. However, the output function chains only half
5786 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5787 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5788 in all of 'state' being rewritten, with the new values depending
5789 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5792 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5793 the handshake is continued after ssl_verify_cert_chain();
5794 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5795 can lead to 'unexplainable' connection aborts later.
5796 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5798 *) Major EVP API cipher revision.
5799 Add hooks for extra EVP features. This allows various cipher
5800 parameters to be set in the EVP interface. Support added for variable
5801 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5802 setting of RC2 and RC5 parameters.
5804 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5807 Remove lots of duplicated code from the EVP library. For example *every*
5808 cipher init() function handles the 'iv' in the same way according to the
5809 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5810 for CFB and OFB modes they zero ctx->num.
5812 New functionality allows removal of S/MIME code RC2 hack.
5814 Most of the routines have the same form and so can be declared in terms
5817 By shifting this to the top level EVP_CipherInit() it can be removed from
5818 all individual ciphers. If the cipher wants to handle IVs or keys
5819 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5822 Change lots of functions like EVP_EncryptUpdate() to now return a
5823 value: although software versions of the algorithms cannot fail
5824 any installed hardware versions can.
5827 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5828 this option is set, tolerate broken clients that send the negotiated
5829 protocol version number instead of the requested protocol version
5833 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5834 i.e. non-zero for export ciphersuites, zero otherwise.
5835 Previous versions had this flag inverted, inconsistent with
5836 rsa_tmp_cb (..._TMP_RSA_CB).
5837 [Bodo Moeller; problem reported by Amit Chopra]
5839 *) Add missing DSA library text string. Work around for some IIS
5840 key files with invalid SEQUENCE encoding.
5843 *) Add a document (doc/standards.txt) that list all kinds of standards
5844 and so on that are implemented in OpenSSL.
5847 *) Enhance c_rehash script. Old version would mishandle certificates
5848 with the same subject name hash and wouldn't handle CRLs at all.
5849 Added -fingerprint option to crl utility, to support new c_rehash
5853 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5856 *) Fix for SSL server purpose checking. Server checking was
5857 rejecting certificates which had extended key usage present
5858 but no ssl client purpose.
5859 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5861 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5862 is a little unclear about how a blank password is handled.
5863 Since the password in encoded as a BMPString with terminating
5864 double NULL a zero length password would end up as just the
5865 double NULL. However no password at all is different and is
5866 handled differently in the PKCS#12 key generation code. NS
5867 treats a blank password as zero length. MSIE treats it as no
5868 password on export: but it will try both on import. We now do
5869 the same: PKCS12_parse() tries zero length and no password if
5870 the password is set to "" or NULL (NULL is now a valid password:
5871 it wasn't before) as does the pkcs12 application.
5874 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5875 perror when PEM_read_bio_X509_REQ fails, the error message must
5876 be obtained from the error queue.
5879 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5880 it in ERR_remove_state if appropriate, and change ERR_get_state
5881 accordingly to avoid race conditions (this is necessary because
5882 thread_hash is no longer constant once set).
5885 *) Bugfix for linux-elf makefile.one.
5888 *) RSA_get_default_method() will now cause a default
5889 RSA_METHOD to be chosen if one doesn't exist already.
5890 Previously this was only set during a call to RSA_new()
5891 or RSA_new_method(NULL) meaning it was possible for
5892 RSA_get_default_method() to return NULL.
5895 *) Added native name translation to the existing DSO code
5896 that will convert (if the flag to do so is set) filenames
5897 that are sufficiently small and have no path information
5898 into a canonical native form. Eg. "blah" converted to
5899 "libblah.so" or "blah.dll" etc.
5902 *) New function ERR_error_string_n(e, buf, len) which is like
5903 ERR_error_string(e, buf), but writes at most 'len' bytes
5904 including the 0 terminator. For ERR_error_string_n, 'buf'
5906 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5908 *) CONF library reworked to become more general. A new CONF
5909 configuration file reader "class" is implemented as well as a
5910 new functions (NCONF_*, for "New CONF") to handle it. The now
5911 old CONF_* functions are still there, but are reimplemented to
5912 work in terms of the new functions. Also, a set of functions
5913 to handle the internal storage of the configuration data is
5914 provided to make it easier to write new configuration file
5915 reader "classes" (I can definitely see something reading a
5916 configuration file in XML format, for example), called _CONF_*,
5917 or "the configuration storage API"...
5919 The new configuration file reading functions are:
5921 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5922 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5924 NCONF_default, NCONF_WIN32
5926 NCONF_dump_fp, NCONF_dump_bio
5928 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5929 NCONF_new creates a new CONF object. This works in the same way
5930 as other interfaces in OpenSSL, like the BIO interface.
5931 NCONF_dump_* dump the internal storage of the configuration file,
5932 which is useful for debugging. All other functions take the same
5933 arguments as the old CONF_* functions wth the exception of the
5934 first that must be a `CONF *' instead of a `LHASH *'.
5936 To make it easer to use the new classes with the old CONF_* functions,
5937 the function CONF_set_default_method is provided.
5940 *) Add '-tls1' option to 'openssl ciphers', which was already
5941 mentioned in the documentation but had not been implemented.
5942 (This option is not yet really useful because even the additional
5943 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5946 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5947 OpenSSL-based applications) load shared libraries and bind to
5948 them in a portable way.
5949 [Geoff Thorpe, with contributions from Richard Levitte]
5951 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5953 *) Make sure _lrotl and _lrotr are only used with MSVC.
5955 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5956 (the default implementation of RAND_status).
5958 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5959 to '-clrext' (= clear extensions), as intended and documented.
5960 [Bodo Moeller; inconsistency pointed out by Michael Attili
5963 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5964 was larger than the MD block size.
5965 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5967 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5968 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5969 using the passed key: if the passed key was a private key the result
5970 of X509_print(), for example, would be to print out all the private key
5974 *) des_quad_cksum() byte order bug fix.
5975 [Ulf Möller, using the problem description in krb4-0.9.7, where
5976 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5978 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5980 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5982 *) For easily testing in shell scripts whether some command
5983 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5984 returns with exit code 0 iff no command of the given name is available.
5985 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5986 the output goes to stdout and nothing is printed to stderr.
5987 Additional arguments are always ignored.
5989 Since for each cipher there is a command of the same name,
5990 the 'no-cipher' compilation switches can be tested this way.
5992 ('openssl no-XXX' is not able to detect pseudo-commands such
5993 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5996 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5999 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6000 is set; it will be thrown away anyway because each handshake creates
6002 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6003 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6004 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6005 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6008 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6009 'Q' and 'R' lose their special meanings (quit/renegotiate).
6010 This is part of what -quiet does; unlike -quiet, -ign_eof
6011 does not suppress any output.
6014 *) Add compatibility options to the purpose and trust code. The
6015 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6016 accepts a certificate or CA, this was the previous behaviour,
6017 with all the associated security issues.
6019 X509_TRUST_COMPAT is the old trust behaviour: only and
6020 automatically trust self signed roots in certificate store. A
6021 new trust setting X509_TRUST_DEFAULT is used to specify that
6022 a purpose has no associated trust setting and it should instead
6023 use the value in the default purpose.
6026 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6027 and fix a memory leak.
6030 *) In util/mkerr.pl (which implements 'make errors'), preserve
6031 reason strings from the previous version of the .c file, as
6032 the default to have only downcase letters (and digits) in
6033 automatically generated reasons codes is not always appropriate.
6036 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6037 using strerror. Previously, ERR_reason_error_string() returned
6038 library names as reason strings for SYSerr; but SYSerr is a special
6039 case where small numbers are errno values, not library numbers.
6042 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6043 converts DSA parameters into DH parameters. (When creating parameters,
6044 DSA_generate_parameters is used.)
6047 *) Include 'length' (recommended exponent length) in C code generated
6048 by 'openssl dhparam -C'.
6051 *) The second argument to set_label in perlasm was already being used
6052 so couldn't be used as a "file scope" flag. Moved to third argument
6056 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6057 instead of RAND_bytes for encryption IVs and salts.
6060 *) Include RAND_status() into RAND_METHOD instead of implementing
6061 it only for md_rand.c Otherwise replacing the PRNG by calling
6062 RAND_set_rand_method would be impossible.
6065 *) Don't let DSA_generate_key() enter an infinite loop if the random
6066 number generation fails.
6069 *) New 'rand' application for creating pseudo-random output.
6072 *) Added configuration support for Linux/IA64
6073 [Rolf Haberrecker <rolf@suse.de>]
6075 *) Assembler module support for Mingw32.
6078 *) Shared library support for HPUX (in shlib/).
6079 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6081 *) Shared library support for Solaris gcc.
6082 [Lutz Behnke <behnke@trustcenter.de>]
6084 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6086 *) PKCS7_encrypt() was adding text MIME headers twice because they
6087 were added manually and by SMIME_crlf_copy().
6090 *) In bntest.c don't call BN_rand with zero bits argument.
6091 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6093 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6094 case was implemented. This caused BN_div_recp() to fail occasionally.
6097 *) Add an optional second argument to the set_label() in the perl
6098 assembly language builder. If this argument exists and is set
6099 to 1 it signals that the assembler should use a symbol whose
6100 scope is the entire file, not just the current function. This
6101 is needed with MASM which uses the format label:: for this scope.
6102 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6104 *) Change the ASN1 types so they are typedefs by default. Before
6105 almost all types were #define'd to ASN1_STRING which was causing
6106 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6110 *) Change names of new functions to the new get1/get0 naming
6111 convention: After 'get1', the caller owns a reference count
6112 and has to call ..._free; 'get0' returns a pointer to some
6113 data structure without incrementing reference counters.
6114 (Some of the existing 'get' functions increment a reference
6115 counter, some don't.)
6116 Similarly, 'set1' and 'add1' functions increase reference
6117 counters or duplicate objects.
6120 *) Allow for the possibility of temp RSA key generation failure:
6121 the code used to assume it always worked and crashed on failure.
6124 *) Fix potential buffer overrun problem in BIO_printf().
6125 [Ulf Möller, using public domain code by Patrick Powell; problem
6126 pointed out by David Sacerdote <das33@cornell.edu>]
6128 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6129 RAND_egd() and RAND_status(). In the command line application,
6130 the EGD socket can be specified like a seed file using RANDFILE
6134 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6135 Some CAs (e.g. Verisign) distribute certificates in this form.
6138 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6139 list to exclude them. This means that no special compilation option
6140 is needed to use anonymous DH: it just needs to be included in the
6144 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6145 EVP_MD_type. The old functionality is available in a new macro called
6146 EVP_MD_md(). Change code that uses it and update docs.
6149 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6150 where the 'void *' argument is replaced by a function pointer argument.
6151 Previously 'void *' was abused to point to functions, which works on
6152 many platforms, but is not correct. As these functions are usually
6153 called by macros defined in OpenSSL header files, most source code
6154 should work without changes.
6157 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6158 sections with information on -D... compiler switches used for
6159 compiling the library so that applications can see them. To enable
6160 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6161 must be defined. E.g.,
6162 #define OPENSSL_ALGORITHM_DEFINES
6163 #include <openssl/opensslconf.h>
6164 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6165 [Richard Levitte, Ulf and Bodo Möller]
6167 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6171 *) Change the 'other' type in certificate aux info to a STACK_OF
6172 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6173 the required ASN1 format: arbitrary types determined by an OID.
6176 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6177 argument to 'req'. This is not because the function is newer or
6178 better than others it just uses the work 'NEW' in the certificate
6179 request header lines. Some software needs this.
6182 *) Reorganise password command line arguments: now passwords can be
6183 obtained from various sources. Delete the PEM_cb function and make
6184 it the default behaviour: i.e. if the callback is NULL and the
6185 usrdata argument is not NULL interpret it as a null terminated pass
6186 phrase. If usrdata and the callback are NULL then the pass phrase
6187 is prompted for as usual.
6190 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6191 the support is automatically enabled. The resulting binaries will
6192 autodetect the card and use it if present.
6193 [Ben Laurie and Compaq Inc.]
6195 *) Work around for Netscape hang bug. This sends certificate request
6196 and server done in one record. Since this is perfectly legal in the
6197 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6198 the bugs/SSLv3 entry for more info.
6201 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6204 *) Add -rand argument to smime and pkcs12 applications and read/write
6208 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6211 *) Add command line password options to the remaining applications.
6214 *) Bug fix for BN_div_recp() for numerators with an even number of
6218 *) More tests in bntest.c, and changed test_bn output.
6221 *) ./config recognizes MacOS X now.
6224 *) Bug fix for BN_div() when the first words of num and divsor are
6225 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6228 *) Add support for various broken PKCS#8 formats, and command line
6229 options to produce them.
6232 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6233 get temporary BIGNUMs from a BN_CTX.
6236 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6240 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6241 include a #define from the old name to the new. The original intent
6242 was that statically linked binaries could for example just call
6243 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6244 link with digests. This never worked becayse SSLeay_add_all_digests()
6245 and SSLeay_add_all_ciphers() were in the same source file so calling
6246 one would link with the other. They are now in separate source files.
6249 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6252 *) Use a less unusual form of the Miller-Rabin primality test (it used
6253 a binary algorithm for exponentiation integrated into the Miller-Rabin
6254 loop, our standard modexp algorithms are faster).
6257 *) Support for the EBCDIC character set completed.
6258 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6260 *) Source code cleanups: use const where appropriate, eliminate casts,
6261 use void * instead of char * in lhash.
6264 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6265 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6266 this the server could overwrite ephemeral keys that the client
6270 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6271 using 50 iterations of the Rabin-Miller test.
6273 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6274 iterations of the Rabin-Miller test as required by the appendix
6275 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6276 As BN_is_prime_fasttest includes trial division, DSA parameter
6277 generation becomes much faster.
6279 This implies a change for the callback functions in DSA_is_prime
6280 and DSA_generate_parameters: The callback function is called once
6281 for each positive witness in the Rabin-Miller test, not just
6282 occasionally in the inner loop; and the parameters to the
6283 callback function now provide an iteration count for the outer
6284 loop rather than for the current invocation of the inner loop.
6285 DSA_generate_parameters additionally can call the callback
6286 function with an 'iteration count' of -1, meaning that a
6287 candidate has passed the trial division test (when q is generated
6288 from an application-provided seed, trial division is skipped).
6291 *) New function BN_is_prime_fasttest that optionally does trial
6292 division before starting the Rabin-Miller test and has
6293 an additional BN_CTX * argument (whereas BN_is_prime always
6294 has to allocate at least one BN_CTX).
6295 'callback(1, -1, cb_arg)' is called when a number has passed the
6296 trial division stage.
6299 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6303 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6306 *) New function BN_pseudo_rand().
6309 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6310 bignum version of BN_from_montgomery() with the working code from
6311 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6315 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6316 made it impossible to use the same SSL_SESSION data structure in
6317 SSL2 clients in multiple threads.
6320 *) The return value of RAND_load_file() no longer counts bytes obtained
6321 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6322 to seed the PRNG (previously an explicit byte count was required).
6323 [Ulf Möller, Bodo Möller]
6325 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6326 used (char *) instead of (void *) and had casts all over the place.
6329 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6332 *) Retain source code compatibility for BN_prime_checks macro:
6333 BN_is_prime(..., BN_prime_checks, ...) now uses
6334 BN_prime_checks_for_size to determine the appropriate number of
6335 Rabin-Miller iterations.
6338 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6339 DH_CHECK_P_NOT_SAFE_PRIME.
6340 (Check if this is true? OpenPGP calls them "strong".)
6343 *) Merge the functionality of "dh" and "gendh" programs into a new program
6344 "dhparam". The old programs are retained for now but will handle DH keys
6345 (instead of parameters) in future.
6348 *) Make the ciphers, s_server and s_client programs check the return values
6349 when a new cipher list is set.
6352 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6353 ciphers. Before when the 56bit ciphers were enabled the sorting was
6356 The syntax for the cipher sorting has been extended to support sorting by
6357 cipher-strength (using the strength_bits hard coded in the tables).
6358 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6360 Fix a bug in the cipher-command parser: when supplying a cipher command
6361 string with an "undefined" symbol (neither command nor alphanumeric
6362 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6363 an error is flagged.
6365 Due to the strength-sorting extension, the code of the
6366 ssl_create_cipher_list() function was completely rearranged. I hope that
6367 the readability was also increased :-)
6368 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6370 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6371 for the first serial number and places 2 in the serial number file. This
6372 avoids problems when the root CA is created with serial number zero and
6373 the first user certificate has the same issuer name and serial number
6377 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6378 the new code. Add documentation for this stuff.
6381 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6382 X509_*() to X509at_*() on the grounds that they don't handle X509
6383 structures and behave in an analagous way to the X509v3 functions:
6384 they shouldn't be called directly but wrapper functions should be used
6387 So we also now have some wrapper functions that call the X509at functions
6388 when passed certificate requests. (TO DO: similar things can be done with
6389 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6390 things. Some of these need some d2i or i2d and print functionality
6391 because they handle more complex structures.)
6394 *) Add missing #ifndefs that caused missing symbols when building libssl
6395 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6396 NO_RSA in ssl/s2*.c.
6397 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6399 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6400 has a return value which indicates the quality of the random data
6401 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6402 error queue. New function RAND_pseudo_bytes() generates output that is
6403 guaranteed to be unique but not unpredictable. RAND_add is like
6404 RAND_seed, but takes an extra argument for an entropy estimate
6405 (RAND_seed always assumes full entropy).
6408 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6409 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6410 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6411 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6412 false-positive rate of at most 2^-80 for random input.
6415 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6418 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6419 in the 0.9.5 release), this returns the chain
6420 from an X509_CTX structure with a dup of the stack and all
6421 the X509 reference counts upped: so the stack will exist
6422 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6425 Also make SSL_SESSION_print() print out the verify return
6429 *) Add manpage for the pkcs12 command. Also change the default
6430 behaviour so MAC iteration counts are used unless the new
6431 -nomaciter option is used. This improves file security and
6432 only older versions of MSIE (4.0 for example) need it.
6435 *) Honor the no-xxx Configure options when creating .DEF files.
6438 *) Add PKCS#10 attributes to field table: challengePassword,
6439 unstructuredName and unstructuredAddress. These are taken from
6440 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6441 international characters are used.
6443 More changes to X509_ATTRIBUTE code: allow the setting of types
6444 based on strings. Remove the 'loc' parameter when adding
6445 attributes because these will be a SET OF encoding which is sorted
6449 *) Initial changes to the 'req' utility to allow request generation
6450 automation. This will allow an application to just generate a template
6451 file containing all the field values and have req construct the
6454 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6455 used all over the place including certificate requests and PKCS#7
6456 structures. They are currently handled manually where necessary with
6457 some primitive wrappers for PKCS#7. The new functions behave in a
6458 manner analogous to the X509 extension functions: they allow
6459 attributes to be looked up by NID and added.
6461 Later something similar to the X509V3 code would be desirable to
6462 automatically handle the encoding, decoding and printing of the
6463 more complex types. The string types like challengePassword can
6464 be handled by the string table functions.
6466 Also modified the multi byte string table handling. Now there is
6467 a 'global mask' which masks out certain types. The table itself
6468 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6469 is useful when for example there is only one permissible type
6470 (as in countryName) and using the mask might result in no valid
6474 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6475 SSL_get_peer_finished to allow applications to obtain the latest
6476 Finished messages sent to the peer or expected from the peer,
6477 respectively. (SSL_get_peer_finished is usually the Finished message
6478 actually received from the peer, otherwise the protocol will be aborted.)
6480 As the Finished message are message digests of the complete handshake
6481 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6482 be used for external authentication procedures when the authentication
6483 provided by SSL/TLS is not desired or is not enough.
6486 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6487 the host supports BWX extension and if Compaq C is present on the
6488 $PATH. Just exploiting of the BWX extension results in 20-30%
6489 performance kick for some algorithms, e.g. DES and RC4 to mention
6490 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6494 *) Add support for MS "fast SGC". This is arguably a violation of the
6495 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6496 weak crypto and after checking the certificate is SGC a second one
6497 with strong crypto. MS SGC stops the first handshake after receiving
6498 the server certificate message and sends a second client hello. Since
6499 a server will typically do all the time consuming operations before
6500 expecting any further messages from the client (server key exchange
6501 is the most expensive) there is little difference between the two.
6503 To get OpenSSL to support MS SGC we have to permit a second client
6504 hello message after we have sent server done. In addition we have to
6505 reset the MAC if we do get this second client hello.
6508 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6509 if a DER encoded private key is RSA or DSA traditional format. Changed
6510 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6511 format DER encoded private key. Newer code should use PKCS#8 format which
6512 has the key type encoded in the ASN1 structure. Added DER private key
6513 support to pkcs8 application.
6516 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6517 ciphersuites has been selected (as required by the SSL 3/TLS 1
6518 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6519 is set, we interpret this as a request to violate the specification
6520 (the worst that can happen is a handshake failure, and 'correct'
6521 behaviour would result in a handshake failure anyway).
6524 *) In SSL_CTX_add_session, take into account that there might be multiple
6525 SSL_SESSION structures with the same session ID (e.g. when two threads
6526 concurrently obtain them from an external cache).
6527 The internal cache can handle only one SSL_SESSION with a given ID,
6528 so if there's a conflict, we now throw out the old one to achieve
6532 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6533 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6534 some routines that use cipher OIDs: some ciphers do not have OIDs
6535 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6539 *) Simplify the trust setting structure and code. Now we just have
6540 two sequences of OIDs for trusted and rejected settings. These will
6541 typically have values the same as the extended key usage extension
6542 and any application specific purposes.
6544 The trust checking code now has a default behaviour: it will just
6545 check for an object with the same NID as the passed id. Functions can
6546 be provided to override either the default behaviour or the behaviour
6547 for a given id. SSL client, server and email already have functions
6548 in place for compatibility: they check the NID and also return "trusted"
6549 if the certificate is self signed.
6552 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6553 traditional format into an EVP_PKEY structure.
6556 *) Add a password callback function PEM_cb() which either prompts for
6557 a password if usr_data is NULL or otherwise assumes it is a null
6558 terminated password. Allow passwords to be passed on command line
6559 environment or config files in a few more utilities.
6562 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6563 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6564 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6565 Update documentation.
6568 *) Support for ASN1 "NULL" type. This could be handled before by using
6569 ASN1_TYPE but there wasn't any function that would try to read a NULL
6570 and produce an error if it couldn't. For compatibility we also have
6571 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6572 don't allocate anything because they don't need to.
6575 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6577 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6579 *) Rebuild of the memory allocation routines used by OpenSSL code and
6580 possibly others as well. The purpose is to make an interface that
6581 provide hooks so anyone can build a separate set of allocation and
6582 deallocation routines to be used by OpenSSL, for example memory
6583 pool implementations, or something else, which was previously hard
6584 since Malloc(), Realloc() and Free() were defined as macros having
6585 the values malloc, realloc and free, respectively (except for Win32
6586 compilations). The same is provided for memory debugging code.
6587 OpenSSL already comes with functionality to find memory leaks, but
6588 this gives people a chance to debug other memory problems.
6590 With these changes, a new set of functions and macros have appeared:
6592 CRYPTO_set_mem_debug_functions() [F]
6593 CRYPTO_get_mem_debug_functions() [F]
6594 CRYPTO_dbg_set_options() [F]
6595 CRYPTO_dbg_get_options() [F]
6596 CRYPTO_malloc_debug_init() [M]
6598 The memory debug functions are NULL by default, unless the library
6599 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6600 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6601 gives the standard debugging functions that come with OpenSSL) or
6602 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6603 provided by the library user) must be used. When the standard
6604 debugging functions are used, CRYPTO_dbg_set_options can be used to
6605 request additional information:
6606 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6607 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6609 Also, things like CRYPTO_set_mem_functions will always give the
6610 expected result (the new set of functions is used for allocation
6611 and deallocation) at all times, regardless of platform and compiler
6614 To finish it up, some functions that were never use in any other
6615 way than through macros have a new API and new semantic:
6618 CRYPTO_dbg_realloc()
6621 All macros of value have retained their old syntax.
6622 [Richard Levitte and Bodo Moeller]
6624 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6625 ordering of SMIMECapabilities wasn't in "strength order" and there
6626 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6630 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6631 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6632 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6634 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6635 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6636 functionality to handle multipart/signed properly) and a utility
6637 called 'smime' to call all this stuff. This is based on code I
6638 originally wrote for Celo who have kindly allowed it to be
6639 included in OpenSSL.
6642 *) Add variants des_set_key_checked and des_set_key_unchecked of
6643 des_set_key (aka des_key_sched). Global variable des_check_key
6644 decides which of these is called by des_set_key; this way
6645 des_check_key behaves as it always did, but applications and
6646 the library itself, which was buggy for des_check_key == 1,
6647 have a cleaner way to pick the version they need.
6650 *) New function PKCS12_newpass() which changes the password of a
6654 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6655 dynamic mix. In both cases the ids can be used as an index into the
6656 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6657 functions so they accept a list of the field values and the
6658 application doesn't need to directly manipulate the X509_TRUST
6662 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6666 *) Modify the way the V3 extension code looks up extensions. This now
6667 works in a similar way to the object code: we have some "standard"
6668 extensions in a static table which is searched with OBJ_bsearch()
6669 and the application can add dynamic ones if needed. The file
6670 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6671 updated whenever a new extension is added to the core code and kept
6672 in ext_nid order. There is a simple program 'tabtest.c' which checks
6673 this. New extensions are not added too often so this file can readily
6674 be maintained manually.
6676 There are two big advantages in doing things this way. The extensions
6677 can be looked up immediately and no longer need to be "added" using
6678 X509V3_add_standard_extensions(): this function now does nothing.
6679 [Side note: I get *lots* of email saying the extension code doesn't
6680 work because people forget to call this function]
6681 Also no dynamic allocation is done unless new extensions are added:
6682 so if we don't add custom extensions there is no need to call
6683 X509V3_EXT_cleanup().
6686 *) Modify enc utility's salting as follows: make salting the default. Add a
6687 magic header, so unsalted files fail gracefully instead of just decrypting
6688 to garbage. This is because not salting is a big security hole, so people
6689 should be discouraged from doing it.
6692 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6693 digest to be passed on the command line but it only used this
6694 parameter when signing a certificate. Modified so all relevant
6695 operations are affected by the digest parameter including the
6696 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6697 DSA key was used because it didn't fix the digest.
6700 *) Initial certificate chain verify code. Currently tests the untrusted
6701 certificates for consistency with the verify purpose (which is set
6702 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6704 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6705 this is because it will reject chains with invalid extensions whereas
6706 every previous version of OpenSSL and SSLeay made no checks at all.
6708 Trust code: checks the root CA for the relevant trust settings. Trust
6709 settings have an initial value consistent with the verify purpose: e.g.
6710 if the verify purpose is for SSL client use it expects the CA to be
6711 trusted for SSL client use. However the default value can be changed to
6712 permit custom trust settings: one example of this would be to only trust
6713 certificates from a specific "secure" set of CAs.
6715 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6716 which should be used for version portability: especially since the
6717 verify structure is likely to change more often now.
6719 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6720 to set them. If not set then assume SSL clients will verify SSL servers
6723 Two new options to the verify program: -untrusted allows a set of
6724 untrusted certificates to be passed in and -purpose which sets the
6725 intended purpose of the certificate. If a purpose is set then the
6726 new chain verify code is used to check extension consistency.
6729 *) Support for the authority information access extension.
6732 *) Modify RSA and DSA PEM read routines to transparently handle
6733 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6734 public keys in a format compatible with certificate
6735 SubjectPublicKeyInfo structures. Unfortunately there were already
6736 functions called *_PublicKey_* which used various odd formats so
6737 these are retained for compatibility: however the DSA variants were
6738 never in a public release so they have been deleted. Changed dsa/rsa
6739 utilities to handle the new format: note no releases ever handled public
6740 keys so we should be OK.
6742 The primary motivation for this change is to avoid the same fiasco
6743 that dogs private keys: there are several incompatible private key
6744 formats some of which are standard and some OpenSSL specific and
6745 require various evil hacks to allow partial transparent handling and
6746 even then it doesn't work with DER formats. Given the option anything
6747 other than PKCS#8 should be dumped: but the other formats have to
6748 stay in the name of compatibility.
6750 With public keys and the benefit of hindsight one standard format
6751 is used which works with EVP_PKEY, RSA or DSA structures: though
6752 it clearly returns an error if you try to read the wrong kind of key.
6754 Added a -pubkey option to the 'x509' utility to output the public key.
6755 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6756 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6757 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6758 that do the same as the EVP_PKEY_assign_*() except they up the
6759 reference count of the added key (they don't "swallow" the
6763 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6764 CRLs would fail if the file contained no certificates or no CRLs:
6765 added a new function to read in both types and return the number
6766 read: this means that if none are read it will be an error. The
6767 DER versions of the certificate and CRL reader would always fail
6768 because it isn't possible to mix certificates and CRLs in DER format
6769 without choking one or the other routine. Changed this to just read
6770 a certificate: this is the best we can do. Also modified the code
6771 in apps/verify.c to take notice of return codes: it was previously
6772 attempting to read in certificates from NULL pointers and ignoring
6773 any errors: this is one reason why the cert and CRL reader seemed
6774 to work. It doesn't check return codes from the default certificate
6775 routines: these may well fail if the certificates aren't installed.
6778 *) Code to support otherName option in GeneralName.
6781 *) First update to verify code. Change the verify utility
6782 so it warns if it is passed a self signed certificate:
6783 for consistency with the normal behaviour. X509_verify
6784 has been modified to it will now verify a self signed
6785 certificate if *exactly* the same certificate appears
6786 in the store: it was previously impossible to trust a
6787 single self signed certificate. This means that:
6788 openssl verify ss.pem
6789 now gives a warning about a self signed certificate but
6790 openssl verify -CAfile ss.pem ss.pem
6794 *) For servers, store verify_result in SSL_SESSION data structure
6795 (and add it to external session representation).
6796 This is needed when client certificate verifications fails,
6797 but an application-provided verification callback (set by
6798 SSL_CTX_set_cert_verify_callback) allows accepting the session
6799 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6800 but returns 1): When the session is reused, we have to set
6801 ssl->verify_result to the appropriate error code to avoid
6803 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6805 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6806 case in PKCS7_dataInit() where the signed PKCS7 structure
6807 didn't contain any existing data because it was being created.
6808 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6810 *) Add a salt to the key derivation routines in enc.c. This
6811 forms the first 8 bytes of the encrypted file. Also add a
6812 -S option to allow a salt to be input on the command line.
6815 *) New function X509_cmp(). Oddly enough there wasn't a function
6816 to compare two certificates. We do this by working out the SHA1
6817 hash and comparing that. X509_cmp() will be needed by the trust
6821 *) SSL_get1_session() is like SSL_get_session(), but increments
6822 the reference count in the SSL_SESSION returned.
6823 [Geoff Thorpe <geoff@eu.c2.net>]
6825 *) Fix for 'req': it was adding a null to request attributes.
6826 Also change the X509_LOOKUP and X509_INFO code to handle
6827 certificate auxiliary information.
6830 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6834 *) Add the possibility to add extra information to the memory leak
6835 detecting output, to form tracebacks, showing from where each
6836 allocation was originated: CRYPTO_push_info("constant string") adds
6837 the string plus current file name and line number to a per-thread
6838 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6839 is like calling CYRPTO_pop_info() until the stack is empty.
6840 Also updated memory leak detection code to be multi-thread-safe.
6843 *) Add options -text and -noout to pkcs7 utility and delete the
6844 encryption options which never did anything. Update docs.
6847 *) Add options to some of the utilities to allow the pass phrase
6848 to be included on either the command line (not recommended on
6849 OSes like Unix) or read from the environment. Update the
6850 manpages and fix a few bugs.
6853 *) Add a few manpages for some of the openssl commands.
6856 *) Fix the -revoke option in ca. It was freeing up memory twice,
6857 leaking and not finding already revoked certificates.
6860 *) Extensive changes to support certificate auxiliary information.
6861 This involves the use of X509_CERT_AUX structure and X509_AUX
6862 functions. An X509_AUX function such as PEM_read_X509_AUX()
6863 can still read in a certificate file in the usual way but it
6864 will also read in any additional "auxiliary information". By
6865 doing things this way a fair degree of compatibility can be
6866 retained: existing certificates can have this information added
6867 using the new 'x509' options.
6869 Current auxiliary information includes an "alias" and some trust
6870 settings. The trust settings will ultimately be used in enhanced
6871 certificate chain verification routines: currently a certificate
6872 can only be trusted if it is self signed and then it is trusted
6876 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6877 The problem was that one of the replacement routines had not been working
6878 since SSLeay releases. For now the offending routine has been replaced
6879 with non-optimised assembler. Even so, this now gives around 95%
6880 performance improvement for 1024 bit RSA signs.
6883 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6884 handling. Most clients have the effective key size in bits equal to
6885 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6886 A few however don't do this and instead use the size of the decrypted key
6887 to determine the RC2 key length and the AlgorithmIdentifier to determine
6888 the effective key length. In this case the effective key length can still
6889 be 40 bits but the key length can be 168 bits for example. This is fixed
6890 by manually forcing an RC2 key into the EVP_PKEY structure because the
6891 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6892 the key length and effective key length are equal.
6895 *) Add a bunch of functions that should simplify the creation of
6896 X509_NAME structures. Now you should be able to do:
6897 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6898 and have it automatically work out the correct field type and fill in
6899 the structures. The more adventurous can try:
6900 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6901 and it will (hopefully) work out the correct multibyte encoding.
6904 *) Change the 'req' utility to use the new field handling and multibyte
6905 copy routines. Before the DN field creation was handled in an ad hoc
6906 way in req, ca, and x509 which was rather broken and didn't support
6907 BMPStrings or UTF8Strings. Since some software doesn't implement
6908 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6909 using the dirstring_type option. See the new comment in the default
6910 openssl.cnf for more info.
6913 *) Make crypto/rand/md_rand.c more robust:
6914 - Assure unique random numbers after fork().
6915 - Make sure that concurrent threads access the global counter and
6916 md serializably so that we never lose entropy in them
6917 or use exactly the same state in multiple threads.
6918 Access to the large state is not always serializable because
6919 the additional locking could be a performance killer, and
6920 md should be large enough anyway.
6923 *) New file apps/app_rand.c with commonly needed functionality
6924 for handling the random seed file.
6926 Use the random seed file in some applications that previously did not:
6928 dsaparam -genkey (which also ignored its '-rand' option),
6931 x509 (when signing).
6932 Except on systems with /dev/urandom, it is crucial to have a random
6933 seed file at least for key creation, DSA signing, and for DH exchanges;
6934 for RSA signatures we could do without one.
6936 gendh and gendsa (unlike genrsa) used to read only the first byte
6937 of each file listed in the '-rand' option. The function as previously
6938 found in genrsa is now in app_rand.c and is used by all programs
6939 that support '-rand'.
6942 *) In RAND_write_file, use mode 0600 for creating files;
6943 don't just chmod when it may be too late.
6946 *) Report an error from X509_STORE_load_locations
6947 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6950 *) New function ASN1_mbstring_copy() this copies a string in either
6951 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6952 into an ASN1_STRING type. A mask of permissible types is passed
6953 and it chooses the "minimal" type to use or an error if not type
6957 *) Add function equivalents to the various macros in asn1.h. The old
6958 macros are retained with an M_ prefix. Code inside the library can
6959 use the M_ macros. External code (including the openssl utility)
6960 should *NOT* in order to be "shared library friendly".
6963 *) Add various functions that can check a certificate's extensions
6964 to see if it usable for various purposes such as SSL client,
6965 server or S/MIME and CAs of these types. This is currently
6966 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6967 verification. Also added a -purpose flag to x509 utility to
6968 print out all the purposes.
6971 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6975 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6976 for, obtain and decode and extension and obtain its critical flag.
6977 This allows all the necessary extension code to be handled in a
6978 single function call.
6981 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6982 platforms. See crypto/rc4/rc4_enc.c for further details.
6985 *) New -noout option to asn1parse. This causes no output to be produced
6986 its main use is when combined with -strparse and -out to extract data
6987 from a file (which may not be in ASN.1 format).
6990 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6991 when producing the local key id.
6992 [Richard Levitte <levitte@stacken.kth.se>]
6994 *) New option -dhparam in s_server. This allows a DH parameter file to be
6995 stated explicitly. If it is not stated then it tries the first server
6996 certificate file. The previous behaviour hard coded the filename
7000 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7001 a public key to be input or output. For example:
7002 openssl rsa -in key.pem -pubout -out pubkey.pem
7003 Also added necessary DSA public key functions to handle this.
7006 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7007 in the message. This was handled by allowing
7008 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7009 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7011 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7012 to the end of the strings whereas this didn't. This would cause problems
7013 if strings read with d2i_ASN1_bytes() were later modified.
7014 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7016 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7017 data and it contains EOF it will end up returning an error. This is
7018 caused by input 46 bytes long. The cause is due to the way base64
7019 BIOs find the start of base64 encoded data. They do this by trying a
7020 trial decode on each line until they find one that works. When they
7021 do a flag is set and it starts again knowing it can pass all the
7022 data directly through the decoder. Unfortunately it doesn't reset
7023 the context it uses. This means that if EOF is reached an attempt
7024 is made to pass two EOFs through the context and this causes the
7025 resulting error. This can also cause other problems as well. As is
7026 usual with these problems it takes *ages* to find and the fix is
7027 trivial: move one line.
7028 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7030 *) Ugly workaround to get s_client and s_server working under Windows. The
7031 old code wouldn't work because it needed to select() on sockets and the
7032 tty (for keypresses and to see if data could be written). Win32 only
7033 supports select() on sockets so we select() with a 1s timeout on the
7034 sockets and then see if any characters are waiting to be read, if none
7035 are present then we retry, we also assume we can always write data to
7036 the tty. This isn't nice because the code then blocks until we've
7037 received a complete line of data and it is effectively polling the
7038 keyboard at 1s intervals: however it's quite a bit better than not
7039 working at all :-) A dedicated Windows application might handle this
7040 with an event loop for example.
7043 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7044 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7045 will be called when RSA_sign() and RSA_verify() are used. This is useful
7046 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7047 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7048 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7049 This necessitated the support of an extra signature type NID_md5_sha1
7050 for SSL signatures and modifications to the SSL library to use it instead
7051 of calling RSA_public_decrypt() and RSA_private_encrypt().
7054 *) Add new -verify -CAfile and -CApath options to the crl program, these
7055 will lookup a CRL issuers certificate and verify the signature in a
7056 similar way to the verify program. Tidy up the crl program so it
7057 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7058 less strict. It will now permit CRL extensions even if it is not
7059 a V2 CRL: this will allow it to tolerate some broken CRLs.
7062 *) Initialize all non-automatic variables each time one of the openssl
7063 sub-programs is started (this is necessary as they may be started
7064 multiple times from the "OpenSSL>" prompt).
7065 [Lennart Bang, Bodo Moeller]
7067 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7068 removing all other RSA functionality (this is what NO_RSA does). This
7069 is so (for example) those in the US can disable those operations covered
7070 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7074 *) Non-copying interface to BIO pairs.
7075 (still largely untested)
7078 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7079 ASCII string. This was handled independently in various places before.
7082 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7083 UTF8 strings a character at a time.
7086 *) Use client_version from client hello to select the protocol
7087 (s23_srvr.c) and for RSA client key exchange verification
7088 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7091 *) Add various utility functions to handle SPKACs, these were previously
7092 handled by poking round in the structure internals. Added new function
7093 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7094 print, verify and generate SPKACs. Based on an original idea from
7095 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7098 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7101 *) Allow the config file extension section to be overwritten on the
7102 command line. Based on an original idea from Massimiliano Pala
7103 <madwolf@comune.modena.it>. The new option is called -extensions
7104 and can be applied to ca, req and x509. Also -reqexts to override
7105 the request extensions in req and -crlexts to override the crl extensions
7109 *) Add new feature to the SPKAC handling in ca. Now you can include
7110 the same field multiple times by preceding it by "XXXX." for example:
7113 this is the same syntax as used in the req config file.
7116 *) Allow certificate extensions to be added to certificate requests. These
7117 are specified in a 'req_extensions' option of the req section of the
7118 config file. They can be printed out with the -text option to req but
7119 are otherwise ignored at present.
7122 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7123 data read consists of only the final block it would not decrypted because
7124 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7125 A misplaced 'break' also meant the decrypted final block might not be
7126 copied until the next read.
7129 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7130 a few extra parameters to the DH structure: these will be useful if
7131 for example we want the value of 'q' or implement X9.42 DH.
7134 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7135 provides hooks that allow the default DSA functions or functions on a
7136 "per key" basis to be replaced. This allows hardware acceleration and
7137 hardware key storage to be handled without major modification to the
7138 library. Also added low level modexp hooks and CRYPTO_EX structure and
7139 associated functions.
7142 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7143 as "read only": it can't be written to and the buffer it points to will
7144 not be freed. Reading from a read only BIO is much more efficient than
7145 a normal memory BIO. This was added because there are several times when
7146 an area of memory needs to be read from a BIO. The previous method was
7147 to create a memory BIO and write the data to it, this results in two
7148 copies of the data and an O(n^2) reading algorithm. There is a new
7149 function BIO_new_mem_buf() which creates a read only memory BIO from
7150 an area of memory. Also modified the PKCS#7 routines to use read only
7154 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7155 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7156 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7157 but a retry condition occured while trying to read the rest.
7160 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7161 NID_pkcs7_encrypted by default: this was wrong since this should almost
7162 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7163 the encrypted data type: this is a more sensible place to put it and it
7164 allows the PKCS#12 code to be tidied up that duplicated this
7168 *) Changed obj_dat.pl script so it takes its input and output files on
7169 the command line. This should avoid shell escape redirection problems
7173 *) Initial support for certificate extension requests, these are included
7174 in things like Xenroll certificate requests. Included functions to allow
7175 extensions to be obtained and added.
7178 *) -crlf option to s_client and s_server for sending newlines as
7179 CRLF (as required by many protocols).
7182 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7184 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7185 [Ralf S. Engelschall]
7187 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7188 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7190 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7194 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7195 DH parameters/keys (q is lost during that conversion, but the resulting
7196 DH parameters contain its length).
7198 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7199 much faster than DH_generate_parameters (which creates parameters
7200 where p = 2*q + 1), and also the smaller q makes DH computations
7201 much more efficient (160-bit exponentiation instead of 1024-bit
7202 exponentiation); so this provides a convenient way to support DHE
7203 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7204 utter importance to use
7205 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7207 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7208 when such DH parameters are used, because otherwise small subgroup
7209 attacks may become possible!
7212 *) Avoid memory leak in i2d_DHparams.
7215 *) Allow the -k option to be used more than once in the enc program:
7216 this allows the same encrypted message to be read by multiple recipients.
7219 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7220 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7221 it will always use the numerical form of the OID, even if it has a short
7225 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7226 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7227 otherwise bn_mod_exp was called. In the case of hardware keys for example
7228 no private key components need be present and it might store extra data
7229 in the RSA structure, which cannot be accessed from bn_mod_exp.
7230 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7231 private key operations.
7234 *) Added support for SPARC Linux.
7237 *) pem_password_cb function type incompatibly changed from
7238 typedef int pem_password_cb(char *buf, int size, int rwflag);
7240 ....(char *buf, int size, int rwflag, void *userdata);
7241 so that applications can pass data to their callbacks:
7242 The PEM[_ASN1]_{read,write}... functions and macros now take an
7243 additional void * argument, which is just handed through whenever
7244 the password callback is called.
7245 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7247 New function SSL_CTX_set_default_passwd_cb_userdata.
7249 Compatibility note: As many C implementations push function arguments
7250 onto the stack in reverse order, the new library version is likely to
7251 interoperate with programs that have been compiled with the old
7252 pem_password_cb definition (PEM_whatever takes some data that
7253 happens to be on the stack as its last argument, and the callback
7254 just ignores this garbage); but there is no guarantee whatsoever that
7257 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7258 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7259 problems not only on Windows, but also on some Unix platforms.
7260 To avoid problematic command lines, these definitions are now in an
7261 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7262 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7265 *) MIPS III/IV assembler module is reimplemented.
7268 *) More DES library cleanups: remove references to srand/rand and
7269 delete an unused file.
7272 *) Add support for the the free Netwide assembler (NASM) under Win32,
7273 since not many people have MASM (ml) and it can be hard to obtain.
7274 This is currently experimental but it seems to work OK and pass all
7275 the tests. Check out INSTALL.W32 for info.
7278 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7279 without temporary keys kept an extra copy of the server key,
7280 and connections with temporary keys did not free everything in case
7284 *) New function RSA_check_key and new openssl rsa option -check
7285 for verifying the consistency of RSA keys.
7286 [Ulf Moeller, Bodo Moeller]
7288 *) Various changes to make Win32 compile work:
7289 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7290 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7291 comparison" warnings.
7292 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7295 *) Add a debugging option to PKCS#5 v2 key generation function: when
7296 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7297 derived keys are printed to stderr.
7300 *) Copy the flags in ASN1_STRING_dup().
7301 [Roman E. Pavlov <pre@mo.msk.ru>]
7303 *) The x509 application mishandled signing requests containing DSA
7304 keys when the signing key was also DSA and the parameters didn't match.
7306 It was supposed to omit the parameters when they matched the signing key:
7307 the verifying software was then supposed to automatically use the CA's
7308 parameters if they were absent from the end user certificate.
7310 Omitting parameters is no longer recommended. The test was also
7311 the wrong way round! This was probably due to unusual behaviour in
7312 EVP_cmp_parameters() which returns 1 if the parameters match.
7313 This meant that parameters were omitted when they *didn't* match and
7314 the certificate was useless. Certificates signed with 'ca' didn't have
7316 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7318 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7319 The interface is as follows:
7320 Applications can use
7321 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7322 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7323 "off" is now the default.
7324 The library internally uses
7325 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7326 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7327 to disable memory-checking temporarily.
7329 Some inconsistent states that previously were possible (and were
7330 even the default) are now avoided.
7332 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7333 with each memory chunk allocated; this is occasionally more helpful
7334 than just having a counter.
7336 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7338 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7342 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7343 which largely parallels "options", but is for changing API behaviour,
7344 whereas "options" are about protocol behaviour.
7345 Initial "mode" flags are:
7347 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7348 a single record has been written.
7349 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7350 retries use the same buffer location.
7351 (But all of the contents must be
7355 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7358 *) Fix problems with no-hmac etc.
7359 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7361 *) New functions RSA_get_default_method(), RSA_set_method() and
7362 RSA_get_method(). These allows replacement of RSA_METHODs without having
7363 to mess around with the internals of an RSA structure.
7366 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7367 Also really enable memory leak checks in openssl.c and in some
7369 [Chad C. Mulligan, Bodo Moeller]
7371 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7372 up the length of negative integers. This has now been simplified to just
7373 store the length when it is first determined and use it later, rather
7374 than trying to keep track of where data is copied and updating it to
7376 [Steve Henson, reported by Brien Wheeler
7377 <bwheeler@authentica-security.com>]
7379 *) Add a new function PKCS7_signatureVerify. This allows the verification
7380 of a PKCS#7 signature but with the signing certificate passed to the
7381 function itself. This contrasts with PKCS7_dataVerify which assumes the
7382 certificate is present in the PKCS#7 structure. This isn't always the
7383 case: certificates can be omitted from a PKCS#7 structure and be
7384 distributed by "out of band" means (such as a certificate database).
7387 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7388 function prototypes in pem.h, also change util/mkdef.pl to add the
7389 necessary function names.
7392 *) mk1mf.pl (used by Windows builds) did not properly read the
7393 options set by Configure in the top level Makefile, and Configure
7394 was not even able to write more than one option correctly.
7395 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7398 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7399 file to be loaded from a BIO or FILE pointer. The BIO version will
7400 for example allow memory BIOs to contain config info.
7403 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7404 Whoever hopes to achieve shared-library compatibility across versions
7405 must use this, not the compile-time macro.
7406 (Exercise 0.9.4: Which is the minimum library version required by
7408 Note: All this applies only to multi-threaded programs, others don't
7412 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7413 through a BIO pair triggered the default case, i.e.
7414 SSLerr(...,SSL_R_UNKNOWN_STATE).
7417 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7418 can use the SSL library even if none of the specific BIOs is
7422 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7423 for the encoded length.
7424 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7426 *) Add initial documentation of the X509V3 functions.
7429 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7430 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7431 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7432 secure PKCS#8 private key format with a high iteration count.
7435 *) Fix determination of Perl interpreter: A perl or perl5
7436 _directory_ in $PATH was also accepted as the interpreter.
7437 [Ralf S. Engelschall]
7439 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7440 wrong with it but it was very old and did things like calling
7441 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7445 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7446 to use the new extension code.
7449 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7450 with macros. This should make it easier to change their form, add extra
7451 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7455 *) Add to configuration table a new entry that can specify an alternative
7456 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7457 according to Mark Crispin <MRC@Panda.COM>.
7461 *) DES CBC did not update the IV. Weird.
7464 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7465 Changing the behaviour of the former might break existing programs --
7466 where IV updating is needed, des_ncbc_encrypt can be used.
7469 *) When bntest is run from "make test" it drives bc to check its
7470 calculations, as well as internally checking them. If an internal check
7471 fails, it needs to cause bc to give a non-zero result or make test carries
7472 on without noticing the failure. Fixed.
7475 *) DES library cleanups.
7478 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7479 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7480 ciphers. NOTE: although the key derivation function has been verified
7481 against some published test vectors it has not been extensively tested
7482 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7486 *) Instead of "mkdir -p", which is not fully portable, use new
7487 Perl script "util/mkdir-p.pl".
7490 *) Rewrite the way password based encryption (PBE) is handled. It used to
7491 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7492 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7493 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7494 the 'parameter' field of the AlgorithmIdentifier is passed to the
7495 underlying key generation function so it must do its own ASN1 parsing.
7496 This has also changed the EVP_PBE_CipherInit() function which now has a
7497 'parameter' argument instead of literal salt and iteration count values
7498 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7501 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7502 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7503 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7504 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7505 value was just used as a "magic string" and not used directly its
7506 value doesn't matter.
7509 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7513 *) "linux-sparc64" configuration (ultrapenguin).
7514 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7515 "linux-sparc" configuration.
7516 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7518 *) config now generates no-xxx options for missing ciphers.
7521 *) Support the EBCDIC character set (work in progress).
7522 File ebcdic.c not yet included because it has a different license.
7523 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7525 *) Support BS2000/OSD-POSIX.
7526 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7528 *) Make callbacks for key generation use void * instead of char *.
7531 *) Make S/MIME samples compile (not yet tested).
7534 *) Additional typesafe stacks.
7537 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7541 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7543 *) New configuration variant "sco5-gcc".
7545 *) Updated some demos.
7546 [Sean O Riordain, Wade Scholine]
7548 *) Add missing BIO_free at exit of pkcs12 application.
7551 *) Fix memory leak in conf.c.
7554 *) Updates for Win32 to assembler version of MD5.
7557 *) Set #! path to perl in apps/der_chop to where we found it
7558 instead of using a fixed path.
7561 *) SHA library changes for irix64-mips4-cc.
7564 *) Improvements for VMS support.
7568 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7570 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7571 This also avoids the problems with SC4.2 and unpatched SC5.
7572 [Andy Polyakov <appro@fy.chalmers.se>]
7574 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7575 These are required because of the typesafe stack would otherwise break
7576 existing code. If old code used a structure member which used to be STACK
7577 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7578 sk_num or sk_value it would produce an error because the num, data members
7579 are not present in STACK_OF. Now it just produces a warning. sk_set
7580 replaces the old method of assigning a value to sk_value
7581 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7582 that does this will no longer work (and should use sk_set instead) but
7583 this could be regarded as a "questionable" behaviour anyway.
7586 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7587 correctly handle encrypted S/MIME data.
7590 *) Change type of various DES function arguments from des_cblock
7591 (which means, in function argument declarations, pointer to char)
7592 to des_cblock * (meaning pointer to array with 8 char elements),
7593 which allows the compiler to do more typechecking; it was like
7594 that back in SSLeay, but with lots of ugly casts.
7596 Introduce new type const_des_cblock.
7599 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7600 problems: find RecipientInfo structure that matches recipient certificate
7601 and initialise the ASN1 structures properly based on passed cipher.
7604 *) Belatedly make the BN tests actually check the results.
7607 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7608 to and from BNs: it was completely broken. New compilation option
7609 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7610 key elements as negative integers.
7613 *) Reorganize and speed up MD5.
7614 [Andy Polyakov <appro@fy.chalmers.se>]
7617 [Richard Levitte <richard@levitte.org>]
7619 *) New option -out to asn1parse to allow the parsed structure to be
7620 output to a file. This is most useful when combined with the -strparse
7621 option to examine the output of things like OCTET STRINGS.
7624 *) Make SSL library a little more fool-proof by not requiring any longer
7625 that SSL_set_{accept,connect}_state be called before
7626 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7627 in many applications because usually everything *appeared* to work as
7628 intended anyway -- now it really works as intended).
7631 *) Move openssl.cnf out of lib/.
7634 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7635 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7636 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7637 [Ralf S. Engelschall]
7639 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7640 handle PKCS#7 enveloped data properly.
7641 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7643 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7644 copying pointers. The cert_st handling is changed by this in
7645 various ways (and thus what used to be known as ctx->default_cert
7646 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7647 any longer when s->cert does not give us what we need).
7648 ssl_cert_instantiate becomes obsolete by this change.
7649 As soon as we've got the new code right (possibly it already is?),
7650 we have solved a couple of bugs of the earlier code where s->cert
7651 was used as if it could not have been shared with other SSL structures.
7653 Note that using the SSL API in certain dirty ways now will result
7654 in different behaviour than observed with earlier library versions:
7655 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7656 does not influence s as it used to.
7658 In order to clean up things more thoroughly, inside SSL_SESSION
7659 we don't use CERT any longer, but a new structure SESS_CERT
7660 that holds per-session data (if available); currently, this is
7661 the peer's certificate chain and, for clients, the server's certificate
7662 and temporary key. CERT holds only those values that can have
7663 meaningful defaults in an SSL_CTX.
7666 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7667 from the internal representation. Various PKCS#7 fixes: remove some
7668 evil casts and set the enc_dig_alg field properly based on the signing
7672 *) Allow PKCS#12 password to be set from the command line or the
7673 environment. Let 'ca' get its config file name from the environment
7674 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7678 *) Allow certificate policies extension to use an IA5STRING for the
7679 organization field. This is contrary to the PKIX definition but
7680 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7684 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7685 without disallowing inline assembler and the like for non-pedantic builds.
7688 *) Support Borland C++ builder.
7689 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7694 *) SHA-1 cleanups and performance enhancements.
7695 [Andy Polyakov <appro@fy.chalmers.se>]
7697 *) Sparc v8plus assembler for the bignum library.
7698 [Andy Polyakov <appro@fy.chalmers.se>]
7700 *) Accept any -xxx and +xxx compiler options in Configure.
7703 *) Update HPUX configuration.
7706 *) Add missing sk_<type>_unshift() function to safestack.h
7707 [Ralf S. Engelschall]
7709 *) New function SSL_CTX_use_certificate_chain_file that sets the
7710 "extra_cert"s in addition to the certificate. (This makes sense
7711 only for "PEM" format files, as chains as a whole are not
7715 *) Support verify_depth from the SSL API.
7716 x509_vfy.c had what can be considered an off-by-one-error:
7717 Its depth (which was not part of the external interface)
7718 was actually counting the number of certificates in a chain;
7719 now it really counts the depth.
7722 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7723 instead of X509err, which often resulted in confusing error
7724 messages since the error codes are not globally unique
7725 (e.g. an alleged error in ssl3_accept when a certificate
7726 didn't match the private key).
7728 *) New function SSL_CTX_set_session_id_context that allows to set a default
7729 value (so that you don't need SSL_set_session_id_context for each
7730 connection using the SSL_CTX).
7733 *) OAEP decoding bug fix.
7736 *) Support INSTALL_PREFIX for package builders, as proposed by
7740 *) New Configure options "threads" and "no-threads". For systems
7741 where the proper compiler options are known (currently Solaris
7742 and Linux), "threads" is the default.
7745 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7748 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7749 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7750 such as /usr/local/bin.
7753 *) "make linux-shared" to build shared libraries.
7754 [Niels Poppe <niels@netbox.org>]
7756 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7759 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7760 extension adding in x509 utility.
7763 *) Remove NOPROTO sections and error code comments.
7766 *) Partial rewrite of the DEF file generator to now parse the ANSI
7770 *) New Configure options --prefix=DIR and --openssldir=DIR.
7773 *) Complete rewrite of the error code script(s). It is all now handled
7774 by one script at the top level which handles error code gathering,
7775 header rewriting and C source file generation. It should be much better
7776 than the old method: it now uses a modified version of Ulf's parser to
7777 read the ANSI prototypes in all header files (thus the old K&R definitions
7778 aren't needed for error creation any more) and do a better job of
7779 translating function codes into names. The old 'ASN1 error code imbedded
7780 in a comment' is no longer necessary and it doesn't use .err files which
7781 have now been deleted. Also the error code call doesn't have to appear all
7782 on one line (which resulted in some large lines...).
7785 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7788 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7789 0 (which usually indicates a closed connection), but continue reading.
7792 *) Fix some race conditions.
7795 *) Add support for CRL distribution points extension. Add Certificate
7796 Policies and CRL distribution points documentation.
7799 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7802 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7803 8 of keying material. Merlin has also confirmed interop with this fix
7804 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7805 [Merlin Hughes <merlin@baltimore.ie>]
7807 *) Fix lots of warnings.
7808 [Richard Levitte <levitte@stacken.kth.se>]
7810 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7811 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7812 [Richard Levitte <levitte@stacken.kth.se>]
7814 *) Fix problems with sizeof(long) == 8.
7815 [Andy Polyakov <appro@fy.chalmers.se>]
7817 *) Change functions to ANSI C.
7820 *) Fix typos in error codes.
7821 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7823 *) Remove defunct assembler files from Configure.
7826 *) SPARC v8 assembler BIGNUM implementation.
7827 [Andy Polyakov <appro@fy.chalmers.se>]
7829 *) Support for Certificate Policies extension: both print and set.
7830 Various additions to support the r2i method this uses.
7833 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7834 return a const string when you are expecting an allocated buffer.
7837 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7838 types DirectoryString and DisplayText.
7841 *) Add code to allow r2i extensions to access the configuration database,
7842 add an LHASH database driver and add several ctx helper functions.
7845 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7846 fail when they extended the size of a BIGNUM.
7849 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7850 support typesafe stack.
7853 *) Fix typo in SSL_[gs]et_options().
7854 [Nils Frostberg <nils@medcom.se>]
7856 *) Delete various functions and files that belonged to the (now obsolete)
7857 old X509V3 handling code.
7860 *) New Configure option "rsaref".
7863 *) Don't auto-generate pem.h.
7866 *) Introduce type-safe ASN.1 SETs.
7869 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7870 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7872 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7873 that links with OpenSSL (well at least cause lots of warnings), but fear
7874 not: the conversion is trivial, and it eliminates loads of evil casts. A
7875 few STACKed things have been converted already. Feel free to convert more.
7876 In the fullness of time, I'll do away with the STACK type altogether.
7879 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7880 specified in <certfile> by updating the entry in the index.txt file.
7881 This way one no longer has to edit the index.txt file manually for
7882 revoking a certificate. The -revoke option does the gory details now.
7883 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7885 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7886 `-text' option at all and this way the `-noout -text' combination was
7887 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7888 [Ralf S. Engelschall]
7890 *) Make sure a corresponding plain text error message exists for the
7891 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7892 verify callback function determined that a certificate was revoked.
7893 [Ralf S. Engelschall]
7895 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7896 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7897 all available cipers including rc5, which was forgotten until now.
7898 In order to let the testing shell script know which algorithms
7899 are available, a new (up to now undocumented) command
7900 "openssl list-cipher-commands" is used.
7903 *) Bugfix: s_client occasionally would sleep in select() when
7904 it should have checked SSL_pending() first.
7907 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7908 the raw DSA values prior to ASN.1 encoding.
7911 *) Tweaks to Configure
7912 [Niels Poppe <niels@netbox.org>]
7914 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7918 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7921 *) New config option to avoid instructions that are illegal on the 80386.
7922 The default code is faster, but requires at least a 486.
7925 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7926 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7927 same as SSL2_VERSION anyway.
7930 *) New "-showcerts" option for s_client.
7933 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7934 application. Various cleanups and fixes.
7937 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7938 modify error routines to work internally. Add error codes and PBE init
7939 to library startup routines.
7942 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7943 packing functions to asn1 and evp. Changed function names and error
7944 codes along the way.
7947 *) PKCS12 integration: and so it begins... First of several patches to
7948 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7949 objects to objects.h
7952 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7953 and display support for Thawte strong extranet extension.
7956 *) Add LinuxPPC support.
7957 [Jeff Dubrule <igor@pobox.org>]
7959 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7960 bn_div_words in alpha.s.
7961 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7963 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7964 OAEP isn't supported when OpenSSL is built with RSAref.
7965 [Ulf Moeller <ulf@fitug.de>]
7967 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7968 so they no longer are missing under -DNOPROTO.
7969 [Soren S. Jorvang <soren@t.dk>]
7972 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7974 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7975 doesn't work when the session is reused. Coming soon!
7978 *) Fix a security hole, that allows sessions to be reused in the wrong
7979 context thus bypassing client cert protection! All software that uses
7980 client certs and session caches in multiple contexts NEEDS PATCHING to
7981 allow session reuse! A fuller solution is in the works.
7982 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7984 *) Some more source tree cleanups (removed obsolete files
7985 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7986 permission on "config" script to be executable) and a fix for the INSTALL
7988 [Ulf Moeller <ulf@fitug.de>]
7990 *) Remove some legacy and erroneous uses of malloc, free instead of
7992 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7994 *) Make rsa_oaep_test return non-zero on error.
7995 [Ulf Moeller <ulf@fitug.de>]
7997 *) Add support for native Solaris shared libraries. Configure
7998 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7999 if someone would make that last step automatic.
8000 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8002 *) ctx_size was not built with the right compiler during "make links". Fixed.
8005 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8006 except NULL ciphers". This means the default cipher list will no longer
8007 enable NULL ciphers. They need to be specifically enabled e.g. with
8008 the string "DEFAULT:eNULL".
8011 *) Fix to RSA private encryption routines: if p < q then it would
8012 occasionally produce an invalid result. This will only happen with
8013 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8016 *) Be less restrictive and allow also `perl util/perlpath.pl
8017 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8018 because this way one can also use an interpreter named `perl5' (which is
8019 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8020 installed as `perl').
8021 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8023 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8024 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8026 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8027 advapi32.lib to Win32 build and change the pem test comparision
8028 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8029 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8030 and crypto/des/ede_cbcm_enc.c.
8033 *) DES quad checksum was broken on big-endian architectures. Fixed.
8036 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8037 Win32 test batch file so it (might) work again. The Win32 test batch file
8038 is horrible: I feel ill....
8041 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8042 in e_os.h. Audit of header files to check ANSI and non ANSI
8043 sections: 10 functions were absent from non ANSI section and not exported
8044 from Windows DLLs. Fixed up libeay.num for new functions.
8047 *) Make `openssl version' output lines consistent.
8048 [Ralf S. Engelschall]
8050 *) Fix Win32 symbol export lists for BIO functions: Added
8051 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8052 to ms/libeay{16,32}.def.
8053 [Ralf S. Engelschall]
8055 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8056 fine under Unix and passes some trivial tests I've now added. But the
8057 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8058 added to make sure no one expects that this stuff really works in the
8059 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8060 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8062 [Ralf S. Engelschall]
8064 *) Fix the generation of two part addresses in perl.
8065 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8067 *) Add config entry for Linux on MIPS.
8068 [John Tobey <jtobey@channel1.com>]
8070 *) Make links whenever Configure is run, unless we are on Windoze.
8073 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8074 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8078 *) Add a useful kludge to allow package maintainers to specify compiler and
8079 other platforms details on the command line without having to patch the
8080 Configure script everytime: One now can use ``perl Configure
8081 <id>:<details>'', i.e. platform ids are allowed to have details appended
8082 to them (seperated by colons). This is treated as there would be a static
8083 pre-configured entry in Configure's %table under key <id> with value
8084 <details> and ``perl Configure <id>'' is called. So, when you want to
8085 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8086 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8087 now, which overrides the FreeBSD-elf entry on-the-fly.
8088 [Ralf S. Engelschall]
8090 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8093 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8094 on the `perl Configure ...' command line. This way one can compile
8095 OpenSSL libraries with Position Independent Code (PIC) which is needed
8096 for linking it into DSOs.
8097 [Ralf S. Engelschall]
8099 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8103 *) Cleaned up the LICENSE document: The official contact for any license
8104 questions now is the OpenSSL core team under openssl-core@openssl.org.
8105 And add a paragraph about the dual-license situation to make sure people
8106 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8107 to the OpenSSL toolkit.
8108 [Ralf S. Engelschall]
8110 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8111 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8112 Additonally cleaned up the `make links' target: Remove unnecessary
8113 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8114 to speed processing and no longer clutter the display with confusing
8115 stuff. Instead only the actually done links are displayed.
8116 [Ralf S. Engelschall]
8118 *) Permit null encryption ciphersuites, used for authentication only. It used
8119 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8120 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8124 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8125 signed attributes when verifying signatures (this would break them),
8126 the detached data encoding was wrong and public keys obtained using
8127 X509_get_pubkey() weren't freed.
8130 *) Add text documentation for the BUFFER functions. Also added a work around
8131 to a Win95 console bug. This was triggered by the password read stuff: the
8132 last character typed gets carried over to the next fread(). If you were
8133 generating a new cert request using 'req' for example then the last
8134 character of the passphrase would be CR which would then enter the first
8138 *) Added the new `Includes OpenSSL Cryptography Software' button as
8139 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8140 button and can be used by applications based on OpenSSL to show the
8141 relationship to the OpenSSL project.
8142 [Ralf S. Engelschall]
8144 *) Remove confusing variables in function signatures in files
8145 ssl/ssl_lib.c and ssl/ssl.h.
8146 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8148 *) Don't install bss_file.c under PREFIX/include/
8149 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8151 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8152 functions that return function pointers and has support for NT specific
8153 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8154 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8155 unsigned to signed types: this was killing the Win32 compile.
8158 *) Add new certificate file to stack functions,
8159 SSL_add_dir_cert_subjects_to_stack() and
8160 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8161 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8162 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8163 This means that Apache-SSL and similar packages don't have to mess around
8164 to add as many CAs as they want to the preferred list.
8167 *) Experiment with doxygen documentation. Currently only partially applied to
8169 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8170 openssl.doxy as the configuration file.
8173 *) Get rid of remaining C++-style comments which strict C compilers hate.
8174 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8176 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8177 compiled in by default: it has problems with large keys.
8180 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8181 DH private keys and/or callback functions which directly correspond to
8182 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8183 is needed for applications which have to configure certificates on a
8184 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8186 For the RSA certificate situation is makes no difference, but
8187 for the DSA certificate situation this fixes the "no shared cipher"
8188 problem where the OpenSSL cipher selection procedure failed because the
8189 temporary keys were not overtaken from the context and the API provided
8190 no way to reconfigure them.
8191 The new functions now let applications reconfigure the stuff and they
8192 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8193 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8194 non-public-API function ssl_cert_instantiate() is used as a helper
8195 function and also to reduce code redundancy inside ssl_rsa.c.
8196 [Ralf S. Engelschall]
8198 *) Move s_server -dcert and -dkey options out of the undocumented feature
8199 area because they are useful for the DSA situation and should be
8200 recognized by the users.
8201 [Ralf S. Engelschall]
8203 *) Fix the cipher decision scheme for export ciphers: the export bits are
8204 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8205 SSL_EXP_MASK. So, the original variable has to be used instead of the
8206 already masked variable.
8207 [Richard Levitte <levitte@stacken.kth.se>]
8209 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8210 [Richard Levitte <levitte@stacken.kth.se>]
8212 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8213 from `int' to `unsigned int' because it's a length and initialized by
8214 EVP_DigestFinal() which expects an `unsigned int *'.
8215 [Richard Levitte <levitte@stacken.kth.se>]
8217 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8218 script. Instead use the usual Shell->Perl transition trick.
8219 [Ralf S. Engelschall]
8221 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8222 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8223 -noout -modulus' as it's already the case for `openssl rsa -noout
8224 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8225 currently the public key is printed (a decision which was already done by
8226 `openssl dsa -modulus' in the past) which serves a similar purpose.
8227 Additionally the NO_RSA no longer completely removes the whole -modulus
8228 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8230 [Ralf S. Engelschall]
8232 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8233 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8234 [Arne Ansper <arne@ats.cyber.ee>]
8236 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8237 to be added. Now both 'req' and 'ca' can use new objects defined in the
8241 *) Add cool BIO that does syslog (or event log on NT).
8242 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8244 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8245 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8246 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8247 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8250 *) Add preliminary config info for new extension code.
8253 *) Make RSA_NO_PADDING really use no padding.
8254 [Ulf Moeller <ulf@fitug.de>]
8256 *) Generate errors when private/public key check is done.
8259 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8260 for some CRL extensions and new objects added.
8263 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8264 key usage extension and fuller support for authority key id.
8267 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8268 padding method for RSA, which is recommended for new applications in PKCS
8269 #1 v2.0 (RFC 2437, October 1998).
8270 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8271 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8272 against Bleichbacher's attack on RSA.
8273 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8276 *) Updates to the new SSL compression code
8277 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8279 *) Fix so that the version number in the master secret, when passed
8280 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8281 (because the server will not accept higher), that the version number
8282 is 0x03,0x01, not 0x03,0x00
8283 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8285 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8286 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8287 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8290 *) Support for RAW extensions where an arbitrary extension can be
8291 created by including its DER encoding. See apps/openssl.cnf for
8295 *) Make sure latest Perl versions don't interpret some generated C array
8296 code as Perl array code in the crypto/err/err_genc.pl script.
8297 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8299 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8300 not many people have the assembler. Various Win32 compilation fixes and
8301 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8305 *) Modify configure script 'Configure' to automatically create crypto/date.h
8306 file under Win32 and also build pem.h from pem.org. New script
8307 util/mkfiles.pl to create the MINFO file on environments that can't do a
8308 'make files': perl util/mkfiles.pl >MINFO should work.
8311 *) Major rework of DES function declarations, in the pursuit of correctness
8312 and purity. As a result, many evil casts evaporated, and some weirdness,
8313 too. You may find this causes warnings in your code. Zapping your evil
8314 casts will probably fix them. Mostly.
8317 *) Fix for a typo in asn1.h. Bug fix to object creation script
8318 obj_dat.pl. It considered a zero in an object definition to mean
8319 "end of object": none of the objects in objects.h have any zeros
8320 so it wasn't spotted.
8321 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8323 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8324 Masking (CBCM). In the absence of test vectors, the best I have been able
8325 to do is check that the decrypt undoes the encrypt, so far. Send me test
8326 vectors if you have them.
8329 *) Correct calculation of key length for export ciphers (too much space was
8330 allocated for null ciphers). This has not been tested!
8333 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8334 message is now correct (it understands "crypto" and "ssl" on its
8335 command line). There is also now an "update" option. This will update
8336 the util/ssleay.num and util/libeay.num files with any new functions.
8338 perl util/mkdef.pl crypto ssl update
8339 it will update them.
8342 *) Overhauled the Perl interface (perl/*):
8343 - ported BN stuff to OpenSSL's different BN library
8344 - made the perl/ source tree CVS-aware
8345 - renamed the package from SSLeay to OpenSSL (the files still contain
8346 their history because I've copied them in the repository)
8347 - removed obsolete files (the test scripts will be replaced
8348 by better Test::Harness variants in the future)
8349 [Ralf S. Engelschall]
8351 *) First cut for a very conservative source tree cleanup:
8352 1. merge various obsolete readme texts into doc/ssleay.txt
8353 where we collect the old documents and readme texts.
8354 2. remove the first part of files where I'm already sure that we no
8355 longer need them because of three reasons: either they are just temporary
8356 files which were left by Eric or they are preserved original files where
8357 I've verified that the diff is also available in the CVS via "cvs diff
8358 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8359 the crypto/md/ stuff).
8360 [Ralf S. Engelschall]
8362 *) More extension code. Incomplete support for subject and issuer alt
8363 name, issuer and authority key id. Change the i2v function parameters
8364 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8365 what that's for :-) Fix to ASN1 macro which messed up
8366 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8369 *) Preliminary support for ENUMERATED type. This is largely copied from the
8373 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8374 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8376 *) Make sure `make rehash' target really finds the `openssl' program.
8377 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8379 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8380 like to hear about it if this slows down other processors.
8383 *) Add CygWin32 platform information to Configure script.
8384 [Alan Batie <batie@aahz.jf.intel.com>]
8386 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8387 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8389 *) New program nseq to manipulate netscape certificate sequences
8392 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8396 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8397 but the BN code had some problems that would cause failures when
8398 doing certificate verification and some other functions.
8399 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8401 *) Add ASN1 and PEM code to support netscape certificate sequences.
8404 *) Add ASN1 and PEM code to support netscape certificate sequences.
8407 *) Add several PKIX and private extended key usage OIDs.
8410 *) Modify the 'ca' program to handle the new extension code. Modify
8411 openssl.cnf for new extension format, add comments.
8414 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8415 and add a sample to openssl.cnf so req -x509 now adds appropriate
8419 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8420 error code, add initial support to X509_print() and x509 application.
8423 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8424 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8425 stuff is currently isolated and isn't even compiled yet.
8428 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8429 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8430 Removed the versions check from X509 routines when loading extensions:
8431 this allows certain broken certificates that don't set the version
8432 properly to be processed.
8435 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8436 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8437 can still be regenerated with "make depend".
8440 *) Spelling mistake in C version of CAST-128.
8441 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8443 *) Changes to the error generation code. The perl script err-code.pl
8444 now reads in the old error codes and retains the old numbers, only
8445 adding new ones if necessary. It also only changes the .err files if new
8446 codes are added. The makefiles have been modified to only insert errors
8447 when needed (to avoid needlessly modifying header files). This is done
8448 by only inserting errors if the .err file is newer than the auto generated
8449 C file. To rebuild all the error codes from scratch (the old behaviour)
8450 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8451 or delete all the .err files.
8454 *) CAST-128 was incorrectly implemented for short keys. The C version has
8455 been fixed, but is untested. The assembler versions are also fixed, but
8456 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8457 to regenerate it if needed.
8458 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8459 Hagino <itojun@kame.net>]
8461 *) File was opened incorrectly in randfile.c.
8462 [Ulf Möller <ulf@fitug.de>]
8464 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8465 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8466 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8467 al: it's just almost always a UTCTime. Note this patch adds new error
8468 codes so do a "make errors" if there are problems.
8471 *) Correct Linux 1 recognition in config.
8472 [Ulf Möller <ulf@fitug.de>]
8474 *) Remove pointless MD5 hash when using DSA keys in ca.
8475 [Anonymous <nobody@replay.com>]
8477 *) Generate an error if given an empty string as a cert directory. Also
8478 generate an error if handed NULL (previously returned 0 to indicate an
8479 error, but didn't set one).
8480 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8482 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8485 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8486 parameters. This was causing a warning which killed off the Win32 compile.
8489 *) Remove C++ style comments from crypto/bn/bn_local.h.
8490 [Neil Costigan <neil.costigan@celocom.com>]
8492 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8493 based on a text string, looking up short and long names and finally
8494 "dot" format. The "dot" format stuff didn't work. Added new function
8495 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8496 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8497 OID is not part of the table.
8500 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8501 X509_LOOKUP_by_alias().
8504 *) Sort openssl functions by name.
8507 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8508 encryption from sample DSA keys (in case anyone is interested the password
8512 *) Make _all_ *_free functions accept a NULL pointer.
8513 [Frans Heymans <fheymans@isaserver.be>]
8515 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8517 [Anonymous <nobody@replay.com>]
8519 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8520 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8522 *) Don't blow it for numeric -newkey arguments to apps/req.
8523 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8525 *) Temp key "for export" tests were wrong in s3_srvr.c.
8526 [Anonymous <nobody@replay.com>]
8528 *) Add prototype for temp key callback functions
8529 SSL_CTX_set_tmp_{rsa,dh}_callback().
8532 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8533 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8536 *) X509_name_add_entry() freed the wrong thing after an error.
8537 [Arne Ansper <arne@ats.cyber.ee>]
8539 *) rsa_eay.c would attempt to free a NULL context.
8540 [Arne Ansper <arne@ats.cyber.ee>]
8542 *) BIO_s_socket() had a broken should_retry() on Windoze.
8543 [Arne Ansper <arne@ats.cyber.ee>]
8545 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8546 [Arne Ansper <arne@ats.cyber.ee>]
8548 *) Make sure the already existing X509_STORE->depth variable is initialized
8549 in X509_STORE_new(), but document the fact that this variable is still
8550 unused in the certificate verification process.
8551 [Ralf S. Engelschall]
8553 *) Fix the various library and apps files to free up pkeys obtained from
8554 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8557 *) Fix reference counting in X509_PUBKEY_get(). This makes
8558 demos/maurice/example2.c work, amongst others, probably.
8559 [Steve Henson and Ben Laurie]
8561 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8562 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8563 are no longer created. This way we have a single and consistent command
8564 line interface `openssl <command>', similar to `cvs <command>'.
8565 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8567 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8568 BIT STRING wrapper always have zero unused bits.
8571 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8574 *) Make the top-level INSTALL documentation easier to understand.
8577 *) Makefiles updated to exit if an error occurs in a sub-directory
8578 make (including if user presses ^C) [Paul Sutton]
8580 *) Make Montgomery context stuff explicit in RSA data structure.
8583 *) Fix build order of pem and err to allow for generated pem.h.
8586 *) Fix renumbering bug in X509_NAME_delete_entry().
8589 *) Enhanced the err-ins.pl script so it makes the error library number
8590 global and can add a library name. This is needed for external ASN1 and
8591 other error libraries.
8594 *) Fixed sk_insert which never worked properly.
8597 *) Fix ASN1 macros so they can handle indefinite length construted
8598 EXPLICIT tags. Some non standard certificates use these: they can now
8602 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8603 into a single doc/ssleay.txt bundle. This way the information is still
8604 preserved but no longer messes up this directory. Now it's new room for
8605 the new set of documenation files.
8606 [Ralf S. Engelschall]
8608 *) SETs were incorrectly DER encoded. This was a major pain, because they
8609 shared code with SEQUENCEs, which aren't coded the same. This means that
8610 almost everything to do with SETs or SEQUENCEs has either changed name or
8611 number of arguments.
8612 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8614 *) Fix test data to work with the above.
8617 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8618 was already fixed by Eric for 0.9.1 it seems.
8619 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8621 *) Autodetect FreeBSD3.
8624 *) Fix various bugs in Configure. This affects the following platforms:
8628 unixware-2.0-pentium
8632 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8633 before they are needed.
8636 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8640 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8642 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8643 changed SSLeay to OpenSSL in version strings.
8644 [Ralf S. Engelschall]
8646 *) Some fixups to the top-level documents.
8649 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8650 because the symlink to include/ was missing.
8651 [Ralf S. Engelschall]
8653 *) Incorporated the popular no-RSA/DSA-only patches
8654 which allow to compile a RSA-free SSLeay.
8655 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8657 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8658 when "ssleay" is still not found.
8659 [Ralf S. Engelschall]
8661 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8662 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8664 *) Updated the README file.
8665 [Ralf S. Engelschall]
8667 *) Added various .cvsignore files in the CVS repository subdirs
8668 to make a "cvs update" really silent.
8669 [Ralf S. Engelschall]
8671 *) Recompiled the error-definition header files and added
8672 missing symbols to the Win32 linker tables.
8673 [Ralf S. Engelschall]
8675 *) Cleaned up the top-level documents;
8676 o new files: CHANGES and LICENSE
8677 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8678 o merged COPYRIGHT into LICENSE
8679 o removed obsolete TODO file
8680 o renamed MICROSOFT to INSTALL.W32
8681 [Ralf S. Engelschall]
8683 *) Removed dummy files from the 0.9.1b source tree:
8684 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8685 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8686 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8687 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8688 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8689 [Ralf S. Engelschall]
8691 *) Added various platform portability fixes.
8694 *) The Genesis of the OpenSSL rpject:
8695 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8696 Young and Tim J. Hudson created while they were working for C2Net until
8698 [The OpenSSL Project]
8701 Changes between 0.9.0b and 0.9.1b [not released]
8703 *) Updated a few CA certificates under certs/
8706 *) Changed some BIGNUM api stuff.
8709 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8710 DGUX x86, Linux Alpha, etc.
8713 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8714 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8718 *) Add -strparse option to asn1pars program which parses nested
8720 [Dr Stephen Henson <shenson@bigfoot.com>]
8722 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8725 *) DSA fix for "ca" program.
8728 *) Added "-genkey" option to "dsaparam" program.
8731 *) Added RIPE MD160 (rmd160) message digest.
8734 *) Added -a (all) option to "ssleay version" command.
8737 *) Added PLATFORM define which is the id given to Configure.
8740 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8743 *) Extended the ASN.1 parser routines.
8746 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8749 *) Added a BN_CTX to the BN library.
8752 *) Fixed the weak key values in DES library
8755 *) Changed API in EVP library for cipher aliases.
8758 *) Added support for RC2/64bit cipher.
8761 *) Converted the lhash library to the crypto/mem.c functions.
8764 *) Added more recognized ASN.1 object ids.
8767 *) Added more RSA padding checks for SSL/TLS.
8770 *) Added BIO proxy/filter functionality.
8773 *) Added extra_certs to SSL_CTX which can be used
8774 send extra CA certificates to the client in the CA cert chain sending
8775 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8778 *) Now Fortezza is denied in the authentication phase because
8779 this is key exchange mechanism is not supported by SSLeay at all.
8782 *) Additional PKCS1 checks.
8785 *) Support the string "TLSv1" for all TLS v1 ciphers.
8788 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8789 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8792 *) Fixed a few memory leaks.
8795 *) Fixed various code and comment typos.
8798 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8799 bytes sent in the client random.
8800 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob