5 Changes between 0.9.8g and 0.9.9 [xx XXX xxxx]
7 *) To support arbitrarily-typed thread IDs, deprecate the existing
8 type-specific APIs for a general purpose CRYPTO_THREADID
9 interface. Applications can choose the thread ID
10 callback type it wishes to register, as before;
12 void CRYPTO_set_id_callback(unsigned long (*func)(void));
13 void CRYPTO_set_idptr_callback(void *(*func)(void));
15 but retrieval, copies, and comparisons of thread IDs are via
16 type-independent interfaces;
18 void CRYPTO_THREADID_set(CRYPTO_THREADID *id);
19 void CRYPTO_THREADID_cmp(const CRYPTO_THREADID *id1,
20 const CRYPTO_THREADID *id2);
21 void CRYPTO_THREADID_cpy(CRYPTO_THREADID *dst,
22 const CRYPTO_THREADID *src);
24 Also, for code that needs a thread ID "value" for use in
25 hash-tables or logging, a "hash" is available by;
27 unsigned long CRYPTO_THREADID_hash(const CRYPTO_THREADID *id);
29 This hash value is likely to be the thread ID anyway, but
30 otherwise it will be unique if possible or as collision-free as
31 possible if uniqueness can't be guaranteed on the target
34 The following functions are deprecated;
35 unsigned long (*CRYPTO_get_id_callback(void))(void);
36 unsigned long CRYPTO_thread_id(void);
38 As a consequence of the above, there are similar deprecations of
39 BN_BLINDING functions in favour of CRYPTO_THREADID-based
42 #ifndef OPENSSL_NO_DEPRECATED
43 unsigned long BN_BLINDING_get_thread_id(const BN_BLINDING *);
44 void BN_BLINDING_set_thread_id(BN_BLINDING *, unsigned long);
46 void BN_BLINDING_set_thread(BN_BLINDING *);
47 int BN_BLINDING_cmp_thread(const BN_BLINDING *, const
50 Also, the ERR_remove_state(int pid) API has been deprecated;
52 #ifndef OPENSSL_NO_DEPRECATED
53 void ERR_remove_state(unsigned long pid)
55 void ERR_remove_thread_state(CRYPTO_THREADID *tid);
59 *) Initial support for Cryptographic Message Syntax (aka CMS) based
60 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
61 support for data, signedData, compressedData, digestedData and
62 encryptedData types currently included, more to come. Scripts to
63 check against RFC4134 examples draft.
66 *) Zlib compression BIO. This is a filter BIO which compressed and
67 uncompresses any data passed through it. Add options to enc utility
71 *) Extend mk1mf to support importing of options and assembly language
72 files from Configure script, currently only included in VC-WIN32.
73 The assembly language rules can now optionally generate the source
74 files from the associated perl scripts.
77 *) Implement remaining functionality needed to support GOST ciphersuites.
78 Interop testing has been performed using CryptoPro implementations.
79 [Victor B. Wagner <vitus@cryptocom.ru>]
81 *) s390x assembler pack.
84 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
88 *) Implement Opaque PRF Input TLS extension as specified in
89 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
90 official specification yet and no extension type assignment by
91 IANA exists, this extension (for now) will have to be explicitly
92 enabled when building OpenSSL by providing the extension number
93 to use. For example, specify an option
95 -DTLSEXT_TYPE_opaque_prf_input=0x9527
97 to the "config" or "Configure" script to enable the extension,
98 assuming extension number 0x9527 (which is a completely arbitrary
99 and unofficial assignment based on the MD5 hash of the Internet
100 Draft). Note that by doing so, you potentially lose
101 interoperability with other TLS implementations since these might
102 be using the same extension number for other purposes.
104 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
105 opaque PRF input value to use in the handshake. This will create
106 an interal copy of the length-'len' string at 'src', and will
107 return non-zero for success.
109 To get more control and flexibility, provide a callback function
112 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
113 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
117 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
120 Callback function 'cb' will be called in handshakes, and is
121 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
122 Argument 'arg' is for application purposes (the value as given to
123 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
124 be provided to the callback function). The callback function
125 has to return non-zero to report success: usually 1 to use opaque
126 PRF input just if possible, or 2 to enforce use of the opaque PRF
127 input. In the latter case, the library will abort the handshake
128 if opaque PRF input is not successfully negotiated.
130 Arguments 'peerinput' and 'len' given to the callback function
131 will always be NULL and 0 in the case of a client. A server will
132 see the client's opaque PRF input through these variables if
133 available (NULL and 0 otherwise). Note that if the server
134 provides an opaque PRF input, the length must be the same as the
135 length of the client's opaque PRF input.
137 Note that the callback function will only be called when creating
138 a new session (session resumption can resume whatever was
139 previously negotiated), and will not be called in SSL 2.0
140 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
141 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
142 for applications that need to enforce opaque PRF input.
146 *) Update ssl code to support digests other than SHA1+MD5 for handshake
149 [Victor B. Wagner <vitus@cryptocom.ru>]
151 *) Add RFC4507 support to OpenSSL. This includes the corrections in
152 RFC4507bis. The encrypted ticket format is an encrypted encoded
153 SSL_SESSION structure, that way new session features are automatically
156 If a client application caches session in an SSL_SESSION structure
157 support is transparent because tickets are now stored in the encoded
160 The SSL_CTX structure automatically generates keys for ticket
161 protection in servers so again support should be possible
162 with no application modification.
164 If a client or server wishes to disable RFC4507 support then the option
165 SSL_OP_NO_TICKET can be set.
167 Add a TLS extension debugging callback to allow the contents of any client
168 or server extensions to be examined.
170 This work was sponsored by Google.
173 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
174 OpenSSL should now compile cleanly on gcc 4.2
175 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
177 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
178 support including streaming MAC support: this is required for GOST
180 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
182 *) Add option -stream to use PKCS#7 streaming in smime utility. New
183 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
184 to output in BER and PEM format.
187 *) Experimental support for use of HMAC via EVP_PKEY interface. This
188 allows HMAC to be handled via the EVP_DigestSign*() interface. The
189 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
190 ENGINE support for HMAC keys which are unextractable. New -mac and
191 -macopt options to dgst utility.
194 *) New option -sigopt to dgst utility. Update dgst to use
195 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
196 alternative signing paramaters such as X9.31 or PSS in the dgst
200 *) Change ssl_cipher_apply_rule(), the internal function that does
201 the work each time a ciphersuite string requests enabling
202 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
203 removing ("!foo+bar") a class of ciphersuites: Now it maintains
204 the order of disabled ciphersuites such that those ciphersuites
205 that most recently went from enabled to disabled not only stay
206 in order with respect to each other, but also have higher priority
207 than other disabled ciphersuites the next time ciphersuites are
210 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
211 the same ciphersuites as with "HIGH" alone, but in a specific
212 order where the PSK ciphersuites come first (since they are the
213 most recently disabled ciphersuites when "HIGH" is parsed).
215 Also, change ssl_create_cipher_list() (using this new
216 funcionality) such that between otherwise identical
217 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
221 *) Change ssl_create_cipher_list() so that it automatically
222 arranges the ciphersuites in reasonable order before starting
223 to process the rule string. Thus, the definition for "DEFAULT"
224 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
225 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
226 This makes it much easier to arrive at a reasonable default order
227 in applications for which anonymous ciphers are OK (meaning
228 that you can't actually use DEFAULT).
229 [Bodo Moeller; suggested by Victor Duchovni]
231 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
232 processing) into multiple integers instead of setting
233 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
234 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
235 (These masks as well as the individual bit definitions are hidden
236 away into the non-exported interface ssl/ssl_locl.h, so this
237 change to the definition of the SSL_CIPHER structure shouldn't
238 affect applications.) This give us more bits for each of these
239 categories, so there is no longer a need to coagulate AES128 and
240 AES256 into a single algorithm bit, and to coagulate Camellia128
241 and Camellia256 into a single algorithm bit, which has led to all
244 Thus, among other things, the kludge introduced in 0.9.7m and
245 0.9.8e for masking out AES256 independently of AES128 or masking
246 out Camellia256 independently of AES256 is not needed here in 0.9.9.
248 With the change, we also introduce new ciphersuite aliases that
249 so far were missing: "AES128", "AES256", "CAMELLIA128", and
253 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
254 Use the leftmost N bytes of the signature input if the input is
255 larger than the prime q (with N being the size in bytes of q).
258 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
259 it yet and it is largely untested.
262 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
265 *) Initial incomplete changes to avoid need for function casts in OpenSSL
266 some compilers (gcc 4.2 and later) reject their use. Safestack is
267 reimplemented. Update ASN1 to avoid use of legacy functions.
270 *) Win32/64 targets are linked with Winsock2.
273 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
274 to external functions. This can be used to increase CRL handling
275 efficiency especially when CRLs are very large by (for example) storing
276 the CRL revoked certificates in a database.
279 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
280 new CRLs added to a directory can be used. New command line option
281 -verify_return_error to s_client and s_server. This causes real errors
282 to be returned by the verify callback instead of carrying on no matter
283 what. This reflects the way a "real world" verify callback would behave.
286 *) GOST engine, supporting several GOST algorithms and public key formats.
287 Kindly donated by Cryptocom.
290 *) Partial support for Issuing Distribution Point CRL extension. CRLs
291 partitioned by DP are handled but no indirect CRL or reason partitioning
292 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
293 selected via a scoring technique which handles IDP and AKID in CRLs.
296 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
297 will ultimately be used for all verify operations: this will remove the
298 X509_STORE dependency on certificate verification and allow alternative
299 lookup methods. X509_STORE based implementations of these two callbacks.
302 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
303 Modify get_crl() to find a valid (unexpired) CRL if possible.
306 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
307 this would be called X509_CRL_cmp() but that name is already used by
308 a function that just compares CRL issuer names. Cache several CRL
309 extensions in X509_CRL structure and cache CRLDP in X509.
312 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
313 this maps equivalent X509_NAME structures into a consistent structure.
314 Name comparison can then be performed rapidly using memcmp().
317 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
321 *) Allow digests to supply their own micalg string for S/MIME type using
322 the ctrl EVP_MD_CTRL_MICALG.
325 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
326 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
327 ctrl. It can then customise the structure before and/or after signing
331 *) New function OBJ_add_sigid() to allow application defined signature OIDs
332 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
333 to free up any added signature OIDs.
336 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
337 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
338 digest and cipher tables. New options added to openssl utility:
339 list-message-digest-algorithms and list-cipher-algorithms.
342 *) In addition to the numerical (unsigned long) thread ID, provide
343 for a pointer (void *) thread ID. This helps accomodate systems
344 that do not provide an unsigned long thread ID. OpenSSL assumes
345 it is in the same thread iff both the numerical and the pointer
346 thread ID agree; so applications are just required to define one
347 of them appropriately (e.g., by using a pointer to a per-thread
348 memory object malloc()ed by the application for the pointer-type
349 thread ID). Exactly analoguous to the existing functions
351 void CRYPTO_set_id_callback(unsigned long (*func)(void));
352 unsigned long (*CRYPTO_get_id_callback(void))(void);
353 unsigned long CRYPTO_thread_id(void);
355 we now have additional functions
357 void CRYPTO_set_idptr_callback(void *(*func)(void));
358 void *(*CRYPTO_get_idptr_callback(void))(void);
359 void *CRYPTO_thread_idptr(void);
361 also in <openssl/crypto.h>. The default value for
362 CRYPTO_thread_idptr() if the application has not provided its own
366 -- NOTE -- this change has been reverted and replaced with a
367 type-independent wrapper (ie. applications do not have to check
368 two type-specific thread ID representations as implied in this
369 change note). However, the "idptr" callback form described here
370 can still be registered. Please see the more recent CHANGES note
371 regarding CRYPTO_THREADID. [Geoff Thorpe]
374 *) Change the array representation of binary polynomials: the list
375 of degrees of non-zero coefficients is now terminated with -1.
376 Previously it was terminated with 0, which was also part of the
377 value; thus, the array representation was not applicable to
378 polynomials where t^0 has coefficient zero. This change makes
379 the array representation useful in a more general context.
382 *) Various modifications and fixes to SSL/TLS cipher string
383 handling. For ECC, the code now distinguishes between fixed ECDH
384 with RSA certificates on the one hand and with ECDSA certificates
385 on the other hand, since these are separate ciphersuites. The
386 unused code for Fortezza ciphersuites has been removed.
388 For consistency with EDH, ephemeral ECDH is now called "EECDH"
389 (not "ECDHE"). For consistency with the code for DH
390 certificates, use of ECDH certificates is now considered ECDH
391 authentication, not RSA or ECDSA authentication (the latter is
392 merely the CA's signing algorithm and not actively used in the
395 The temporary ciphersuite alias "ECCdraft" is no longer
396 available, and ECC ciphersuites are no longer excluded from "ALL"
397 and "DEFAULT". The following aliases now exist for RFC 4492
398 ciphersuites, most of these by analogy with the DH case:
400 kECDHr - ECDH cert, signed with RSA
401 kECDHe - ECDH cert, signed with ECDSA
402 kECDH - ECDH cert (signed with either RSA or ECDSA)
403 kEECDH - ephemeral ECDH
404 ECDH - ECDH cert or ephemeral ECDH
410 AECDH - anonymous ECDH
411 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
415 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
416 Use correct micalg parameters depending on digest(s) in signed message.
419 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
420 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
423 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
424 an engine to register a method. Add ENGINE lookups for methods and
425 functional reference processing.
428 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
429 EVP_{Sign,Verify}* which allow an application to customise the signature
433 *) New -resign option to smime utility. This adds one or more signers
434 to an existing PKCS#7 signedData structure. Also -md option to use an
435 alternative message digest algorithm for signing.
438 *) Tidy up PKCS#7 routines and add new functions to make it easier to
439 create PKCS7 structures containing multiple signers. Update smime
440 application to support multiple signers.
443 *) New -macalg option to pkcs12 utility to allow setting of an alternative
447 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
448 Reorganize PBE internals to lookup from a static table using NIDs,
449 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
450 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
451 PRF which will be automatically used with PBES2.
454 *) Replace the algorithm specific calls to generate keys in "req" with the
458 *) Update PKCS#7 enveloped data routines to use new API. This is now
459 supported by any public key method supporting the encrypt operation. A
460 ctrl is added to allow the public key algorithm to examine or modify
461 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
465 *) Add a ctrl to asn1 method to allow a public key algorithm to express
466 a default digest type to use. In most cases this will be SHA1 but some
467 algorithms (such as GOST) need to specify an alternative digest. The
468 return value indicates how strong the prefernce is 1 means optional and
469 2 is mandatory (that is it is the only supported type). Modify
470 ASN1_item_sign() to accept a NULL digest argument to indicate it should
471 use the default md. Update openssl utilities to use the default digest
472 type for signing if it is not explicitly indicated.
475 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
476 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
477 signing method from the key type. This effectively removes the link
478 between digests and public key types.
481 *) Add an OID cross reference table and utility functions. Its purpose is to
482 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
483 rsaEncryption. This will allow some of the algorithm specific hackery
484 needed to use the correct OID to be removed.
487 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
488 structures for PKCS7_sign(). They are now set up by the relevant public
492 *) Add provisional EC pkey method with support for ECDSA and ECDH.
495 *) Add support for key derivation (agreement) in the API, DH method and
499 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
500 public and private key formats. As a side effect these add additional
501 command line functionality not previously available: DSA signatures can be
502 generated and verified using pkeyutl and DH key support and generation in
507 [Oliver Tappe <zooey@hirschkaefer.de>]
509 *) New make target "install_html_docs" installs HTML renditions of the
511 [Oliver Tappe <zooey@hirschkaefer.de>]
513 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
514 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
515 support key and parameter generation and add initial key generation
516 functionality for RSA.
519 *) Add functions for main EVP_PKEY_method operations. The undocumented
520 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
521 EVP_PKEY_{encrypt,decrypt}_old.
524 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
525 key API, doesn't do much yet.
528 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
529 public key algorithms. New option to openssl utility:
530 "list-public-key-algorithms" to print out info.
533 *) Implement the Supported Elliptic Curves Extension for
534 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
537 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
538 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
541 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
542 utilities such as rsa, dsa, dsaparam etc except they process any key
546 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
547 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
548 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
552 *) Initial support for pluggable public key ASN1.
553 De-spaghettify the public key ASN1 handling. Move public and private
554 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
555 algorithm specific handling to a single module within the relevant
556 algorithm directory. Add functions to allow (near) opaque processing
557 of public and private key structures.
560 *) Implement the Supported Point Formats Extension for
561 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
564 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
565 for the psk identity [hint] and the psk callback functions to the
566 SSL_SESSION, SSL and SSL_CTX structure.
569 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
573 SSL_CTX_use_psk_identity_hint
574 SSL_get_psk_identity_hint
576 SSL_use_psk_identity_hint
578 [Mika Kousa and Pasi Eronen of Nokia Corporation]
580 *) Add RFC 3161 compliant time stamp request creation, response generation
581 and response verification functionality.
582 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
584 *) Add initial support for TLS extensions, specifically for the server_name
585 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
586 have new members for a host name. The SSL data structure has an
587 additional member SSL_CTX *initial_ctx so that new sessions can be
588 stored in that context to allow for session resumption, even after the
589 SSL has been switched to a new SSL_CTX in reaction to a client's
590 server_name extension.
592 New functions (subject to change):
595 SSL_get_servername_type()
598 New CTRL codes and macros (subject to change):
600 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
601 - SSL_CTX_set_tlsext_servername_callback()
602 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
603 - SSL_CTX_set_tlsext_servername_arg()
604 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
606 openssl s_client has a new '-servername ...' option.
608 openssl s_server has new options '-servername_host ...', '-cert2 ...',
609 '-key2 ...', '-servername_fatal' (subject to change). This allows
610 testing the HostName extension for a specific single host name ('-cert'
611 and '-key' remain fallbacks for handshakes without HostName
612 negotiation). If the unrecogninzed_name alert has to be sent, this by
613 default is a warning; it becomes fatal with the '-servername_fatal'
616 [Peter Sylvester, Remy Allais, Christophe Renou]
618 *) Whirlpool hash implementation is added.
621 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
622 bn(64,32). Because of instruction set limitations it doesn't have
623 any negative impact on performance. This was done mostly in order
624 to make it possible to share assembler modules, such as bn_mul_mont
625 implementations, between 32- and 64-bit builds without hassle.
628 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
629 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
633 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
634 dedicated Montgomery multiplication procedure, is introduced.
635 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
636 "64-bit" performance on certain 32-bit targets.
639 *) New option SSL_OP_NO_COMP to disable use of compression selectively
640 in SSL structures. New SSL ctrl to set maximum send fragment size.
641 Save memory by seeting the I/O buffer sizes dynamically instead of
642 using the maximum available value.
645 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
646 in addition to the text details.
649 *) Very, very preliminary EXPERIMENTAL support for printing of general
650 ASN1 structures. This currently produces rather ugly output and doesn't
651 handle several customised structures at all.
654 *) Integrated support for PVK file format and some related formats such
655 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
656 these in the 'rsa' and 'dsa' utilities.
659 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
662 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
663 place for the (very old) "NETSCAPE" format certificates which are now
664 handled using new ASN1 code equivalents.
667 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
668 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
669 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
672 *) Modify CRL distribution points extension code to print out previously
673 unsupported fields. Enhance extension setting code to allow setting of
677 *) Add print and set support for Issuing Distribution Point CRL extension.
680 *) Change 'Configure' script to enable Camellia by default.
683 Changes between 0.9.8g and 0.9.8h [xx XXX xxxx]
685 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
686 to get the expected BN_FLG_CONSTTIME behavior.
687 [Bodo Moeller (Google)]
691 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
692 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
693 - added some more tests to do_tests.pl
694 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
695 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
696 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
697 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
698 - various changes to netware.pl to enable gcc-cross builds on Win32
700 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
701 - various changes to fix missing prototype warnings
702 - fixed x86nasm.pl to create correct asm files for NASM COFF output
703 - added AES, WHIRLPOOL and CPUID assembler code to build files
704 - added missing AES assembler make rules to mk1mf.pl
705 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
706 [Guenter Knauf <eflash@gmx.net>]
708 *) Implement certificate status request TLS extension defined in RFC3546.
709 A client can set the appropriate parameters and receive the encoded
710 OCSP response via a callback. A server can query the supplied parameters
711 and set the encoded OCSP response in the callback. Add simplified examples
712 to s_client and s_server.
715 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
718 + Binary incompatibility of ssl_ctx_st structure
719 + DTLS interoperation with non-compliant servers
720 + Don't call get_session_cb() without proposed session
721 + Fix ia64 assembler code
722 [Andy Polyakov, Steve Henson]
724 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
726 *) DTLS Handshake overhaul. There were longstanding issues with
727 OpenSSL DTLS implementation, which were making it impossible for
728 RFC 4347 compliant client to communicate with OpenSSL server.
729 Unfortunately just fixing these incompatibilities would "cut off"
730 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
731 server keeps tolerating non RFC compliant syntax. The opposite is
732 not true, 0.9.8f client can not communicate with earlier server.
733 This update even addresses CVE-2007-4995.
736 *) Changes to avoid need for function casts in OpenSSL: some compilers
737 (gcc 4.2 and later) reject their use.
738 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
741 *) Add RFC4507 support to OpenSSL. This includes the corrections in
742 RFC4507bis. The encrypted ticket format is an encrypted encoded
743 SSL_SESSION structure, that way new session features are automatically
746 If a client application caches session in an SSL_SESSION structure
747 support is transparent because tickets are now stored in the encoded
750 The SSL_CTX structure automatically generates keys for ticket
751 protection in servers so again support should be possible
752 with no application modification.
754 If a client or server wishes to disable RFC4507 support then the option
755 SSL_OP_NO_TICKET can be set.
757 Add a TLS extension debugging callback to allow the contents of any client
758 or server extensions to be examined.
760 This work was sponsored by Google.
763 *) Add initial support for TLS extensions, specifically for the server_name
764 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
765 have new members for a host name. The SSL data structure has an
766 additional member SSL_CTX *initial_ctx so that new sessions can be
767 stored in that context to allow for session resumption, even after the
768 SSL has been switched to a new SSL_CTX in reaction to a client's
769 server_name extension.
771 New functions (subject to change):
774 SSL_get_servername_type()
777 New CTRL codes and macros (subject to change):
779 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
780 - SSL_CTX_set_tlsext_servername_callback()
781 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
782 - SSL_CTX_set_tlsext_servername_arg()
783 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
785 openssl s_client has a new '-servername ...' option.
787 openssl s_server has new options '-servername_host ...', '-cert2 ...',
788 '-key2 ...', '-servername_fatal' (subject to change). This allows
789 testing the HostName extension for a specific single host name ('-cert'
790 and '-key' remain fallbacks for handshakes without HostName
791 negotiation). If the unrecogninzed_name alert has to be sent, this by
792 default is a warning; it becomes fatal with the '-servername_fatal'
795 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
797 *) Add AES and SSE2 assembly language support to VC++ build.
800 *) Mitigate attack on final subtraction in Montgomery reduction.
803 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
804 (which previously caused an internal error).
807 *) Squeeze another 10% out of IGE mode when in != out.
810 *) AES IGE mode speedup.
811 [Dean Gaudet (Google)]
813 *) Add the Korean symmetric 128-bit cipher SEED (see
814 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
815 add SEED ciphersuites from RFC 4162:
817 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
818 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
819 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
820 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
822 To minimize changes between patchlevels in the OpenSSL 0.9.8
823 series, SEED remains excluded from compilation unless OpenSSL
824 is configured with 'enable-seed'.
827 *) Mitigate branch prediction attacks, which can be practical if a
828 single processor is shared, allowing a spy process to extract
829 information. For detailed background information, see
830 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
831 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
832 and Necessary Software Countermeasures"). The core of the change
833 are new versions BN_div_no_branch() and
834 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
835 respectively, which are slower, but avoid the security-relevant
836 conditional branches. These are automatically called by BN_div()
837 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
838 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
839 remove a conditional branch.
841 BN_FLG_CONSTTIME is the new name for the previous
842 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
843 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
844 in the exponent causes BN_mod_exp_mont() to use the alternative
845 implementation in BN_mod_exp_mont_consttime().) The old name
846 remains as a deprecated alias.
848 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
849 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
850 constant-time implementations for more than just exponentiation.
851 Here too the old name is kept as a deprecated alias.
853 BN_BLINDING_new() will now use BN_dup() for the modulus so that
854 the BN_BLINDING structure gets an independent copy of the
855 modulus. This means that the previous "BIGNUM *m" argument to
856 BN_BLINDING_new() and to BN_BLINDING_create_param() now
857 essentially becomes "const BIGNUM *m", although we can't actually
858 change this in the header file before 0.9.9. It allows
859 RSA_setup_blinding() to use BN_with_flags() on the modulus to
860 enable BN_FLG_CONSTTIME.
862 [Matthew D Wood (Intel Corp)]
864 *) In the SSL/TLS server implementation, be strict about session ID
865 context matching (which matters if an application uses a single
866 external cache for different purposes). Previously,
867 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
868 set. This did ensure strict client verification, but meant that,
869 with applications using a single external cache for quite
870 different requirements, clients could circumvent ciphersuite
871 restrictions for a given session ID context by starting a session
872 in a different context.
875 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
876 a ciphersuite string such as "DEFAULT:RSA" cannot enable
877 authentication-only ciphersuites.
880 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
882 *) Since AES128 and AES256 (and similarly Camellia128 and
883 Camellia256) share a single mask bit in the logic of
884 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
885 kludge to work properly if AES128 is available and AES256 isn't
886 (or if Camellia128 is available and Camellia256 isn't).
889 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
890 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
891 When a point or a seed is encoded in a BIT STRING, we need to
892 prevent the removal of trailing zero bits to get the proper DER
893 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
894 of a NamedBitList, for which trailing 0 bits need to be removed.)
897 *) Have SSL/TLS server implementation tolerate "mismatched" record
898 protocol version while receiving ClientHello even if the
899 ClientHello is fragmented. (The server can't insist on the
900 particular protocol version it has chosen before the ServerHello
901 message has informed the client about his choice.)
904 *) Add RFC 3779 support.
905 [Rob Austein for ARIN, Ben Laurie]
907 *) Load error codes if they are not already present instead of using a
908 static variable. This allows them to be cleanly unloaded and reloaded.
909 Improve header file function name parsing.
912 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
913 or CAPABILITY handshake as required by RFCs.
916 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
918 *) Introduce limits to prevent malicious keys being able to
919 cause a denial of service. (CVE-2006-2940)
920 [Steve Henson, Bodo Moeller]
922 *) Fix ASN.1 parsing of certain invalid structures that can result
923 in a denial of service. (CVE-2006-2937) [Steve Henson]
925 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
926 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
928 *) Fix SSL client code which could crash if connecting to a
929 malicious SSLv2 server. (CVE-2006-4343)
930 [Tavis Ormandy and Will Drewry, Google Security Team]
932 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
933 match only those. Before that, "AES256-SHA" would be interpreted
934 as a pattern and match "AES128-SHA" too (since AES128-SHA got
935 the same strength classification in 0.9.7h) as we currently only
936 have a single AES bit in the ciphersuite description bitmap.
937 That change, however, also applied to ciphersuite strings such as
938 "RC4-MD5" that intentionally matched multiple ciphersuites --
939 namely, SSL 2.0 ciphersuites in addition to the more common ones
940 from SSL 3.0/TLS 1.0.
942 So we change the selection algorithm again: Naming an explicit
943 ciphersuite selects this one ciphersuite, and any other similar
944 ciphersuite (same bitmap) from *other* protocol versions.
945 Thus, "RC4-MD5" again will properly select both the SSL 2.0
946 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
948 Since SSL 2.0 does not have any ciphersuites for which the
949 128/256 bit distinction would be relevant, this works for now.
950 The proper fix will be to use different bits for AES128 and
951 AES256, which would have avoided the problems from the beginning;
952 however, bits are scarce, so we can only do this in a new release
953 (not just a patchlevel) when we can change the SSL_CIPHER
954 definition to split the single 'unsigned long mask' bitmap into
955 multiple values to extend the available space.
959 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
961 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
962 (CVE-2006-4339) [Ben Laurie and Google Security Team]
964 *) Add AES IGE and biIGE modes.
967 *) Change the Unix randomness entropy gathering to use poll() when
968 possible instead of select(), since the latter has some
969 undesirable limitations.
970 [Darryl Miles via Richard Levitte and Bodo Moeller]
972 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
973 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
974 cannot be implicitly activated as part of, e.g., the "AES" alias.
975 However, please upgrade to OpenSSL 0.9.9[-dev] for
976 non-experimental use of the ECC ciphersuites to get TLS extension
977 support, which is required for curve and point format negotiation
978 to avoid potential handshake problems.
981 *) Disable rogue ciphersuites:
983 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
984 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
985 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
987 The latter two were purportedly from
988 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
991 Also deactivate the remaining ciphersuites from
992 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
993 unofficial, and the ID has long expired.
996 *) Fix RSA blinding Heisenbug (problems sometimes occured on
997 dual-core machines) and other potential thread-safety issues.
1000 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1001 versions), which is now available for royalty-free use
1002 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1003 Also, add Camellia TLS ciphersuites from RFC 4132.
1005 To minimize changes between patchlevels in the OpenSSL 0.9.8
1006 series, Camellia remains excluded from compilation unless OpenSSL
1007 is configured with 'enable-camellia'.
1010 *) Disable the padding bug check when compression is in use. The padding
1011 bug check assumes the first packet is of even length, this is not
1012 necessarily true if compresssion is enabled and can result in false
1013 positives causing handshake failure. The actual bug test is ancient
1014 code so it is hoped that implementations will either have fixed it by
1015 now or any which still have the bug do not support compression.
1018 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1020 *) When applying a cipher rule check to see if string match is an explicit
1021 cipher suite and only match that one cipher suite if it is.
1024 *) Link in manifests for VC++ if needed.
1025 [Austin Ziegler <halostatue@gmail.com>]
1027 *) Update support for ECC-based TLS ciphersuites according to
1028 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1029 TLS extensions, which are supported starting with the 0.9.9
1030 branch, not in the OpenSSL 0.9.8 branch).
1033 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1034 opaque EVP_CIPHER_CTX handling.
1037 *) Fixes and enhancements to zlib compression code. We now only use
1038 "zlib1.dll" and use the default __cdecl calling convention on Win32
1039 to conform with the standards mentioned here:
1040 http://www.zlib.net/DLL_FAQ.txt
1041 Static zlib linking now works on Windows and the new --with-zlib-include
1042 --with-zlib-lib options to Configure can be used to supply the location
1043 of the headers and library. Gracefully handle case where zlib library
1047 *) Several fixes and enhancements to the OID generation code. The old code
1048 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1049 handle numbers larger than ULONG_MAX, truncated printing and had a
1050 non standard OBJ_obj2txt() behaviour.
1053 *) Add support for building of engines under engine/ as shared libraries
1054 under VC++ build system.
1057 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1058 Hopefully, we will not see any false combination of paths any more.
1061 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1063 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1064 (part of SSL_OP_ALL). This option used to disable the
1065 countermeasure against man-in-the-middle protocol-version
1066 rollback in the SSL 2.0 server implementation, which is a bad
1067 idea. (CVE-2005-2969)
1069 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1070 for Information Security, National Institute of Advanced Industrial
1071 Science and Technology [AIST], Japan)]
1073 *) Add two function to clear and return the verify parameter flags.
1076 *) Keep cipherlists sorted in the source instead of sorting them at
1077 runtime, thus removing the need for a lock.
1080 *) Avoid some small subgroup attacks in Diffie-Hellman.
1081 [Nick Mathewson and Ben Laurie]
1083 *) Add functions for well-known primes.
1086 *) Extended Windows CE support.
1087 [Satoshi Nakamura and Andy Polyakov]
1089 *) Initialize SSL_METHOD structures at compile time instead of during
1090 runtime, thus removing the need for a lock.
1093 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1094 attempting to decrypt each encrypted key in turn. Add support to
1098 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1100 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1103 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1106 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1107 key into the same file any more.
1110 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1113 *) Add -utf8 command line and config file option to 'ca'.
1114 [Stefan <stf@udoma.org]
1116 *) Removed the macro des_crypt(), as it seems to conflict with some
1117 libraries. Use DES_crypt().
1120 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1121 involves renaming the source and generated shared-libs for
1122 both. The engines will accept the corrected or legacy ids
1123 ('ncipher' and '4758_cca' respectively) when binding. NB,
1124 this only applies when building 'shared'.
1125 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1127 *) Add attribute functions to EVP_PKEY structure. Modify
1128 PKCS12_create() to recognize a CSP name attribute and
1129 use it. Make -CSP option work again in pkcs12 utility.
1132 *) Add new functionality to the bn blinding code:
1133 - automatic re-creation of the BN_BLINDING parameters after
1134 a fixed number of uses (currently 32)
1135 - add new function for parameter creation
1136 - introduce flags to control the update behaviour of the
1137 BN_BLINDING parameters
1138 - hide BN_BLINDING structure
1139 Add a second BN_BLINDING slot to the RSA structure to improve
1140 performance when a single RSA object is shared among several
1144 *) Add support for DTLS.
1145 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1147 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1148 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1151 *) Remove buggy and incompletet DH cert support from
1152 ssl/ssl_rsa.c and ssl/s3_both.c
1155 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1156 the apps/openssl applications.
1159 *) Compile clean with "-Wall -Wmissing-prototypes
1160 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1161 DEBUG_SAFESTACK must also be set.
1164 *) Change ./Configure so that certain algorithms can be disabled by default.
1165 The new counterpiece to "no-xxx" is "enable-xxx".
1167 The patented RC5 and MDC2 algorithms will now be disabled unless
1168 "enable-rc5" and "enable-mdc2", respectively, are specified.
1170 (IDEA remains enabled despite being patented. This is because IDEA
1171 is frequently required for interoperability, and there is no license
1172 fee for non-commercial use. As before, "no-idea" can be used to
1173 avoid this algorithm.)
1177 *) Add processing of proxy certificates (see RFC 3820). This work was
1178 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1179 EGEE (Enabling Grids for E-science in Europe).
1182 *) RC4 performance overhaul on modern architectures/implementations, such
1183 as Intel P4, IA-64 and AMD64.
1186 *) New utility extract-section.pl. This can be used specify an alternative
1187 section number in a pod file instead of having to treat each file as
1188 a separate case in Makefile. This can be done by adding two lines to the
1191 =for comment openssl_section:XXX
1193 The blank line is mandatory.
1197 *) New arguments -certform, -keyform and -pass for s_client and s_server
1198 to allow alternative format key and certificate files and passphrase
1202 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1203 update associated structures and add various utility functions.
1205 Add new policy related verify parameters, include policy checking in
1206 standard verify code. Enhance 'smime' application with extra parameters
1207 to support policy checking and print out.
1210 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1211 Nehemiah processors. These extensions support AES encryption in hardware
1212 as well as RNG (though RNG support is currently disabled).
1213 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1215 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1218 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1219 [Andy Polyakov and a number of other people]
1221 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1222 implementation contributed by IBM.
1223 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1225 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1226 exponent rather than 'unsigned long'. There is a corresponding change to
1227 the new 'rsa_keygen' element of the RSA_METHOD structure.
1228 [Jelte Jansen, Geoff Thorpe]
1230 *) Functionality for creating the initial serial number file is now
1231 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1233 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1234 number file to 1, which is bound to cause problems. To avoid
1235 the problems while respecting compatibility between different 0.9.7
1236 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1237 CA.pl for serial number initialization. With the new release 0.9.8,
1238 we can fix the problem directly in the 'ca' utility.)
1241 *) Reduced header interdepencies by declaring more opaque objects in
1242 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1243 give fewer recursive includes, which could break lazy source code - so
1244 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1245 developers should define this symbol when building and using openssl to
1246 ensure they track the recommended behaviour, interfaces, [etc], but
1247 backwards-compatible behaviour prevails when this isn't defined.
1250 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1253 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1254 This will generate a random key of the appropriate length based on the
1255 cipher context. The EVP_CIPHER can provide its own random key generation
1256 routine to support keys of a specific form. This is used in the des and
1257 3des routines to generate a key of the correct parity. Update S/MIME
1258 code to use new functions and hence generate correct parity DES keys.
1259 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1260 valid (weak or incorrect parity).
1263 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1264 as looking them up. This is useful when the verified structure may contain
1265 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1266 present unless the new PKCS7_NO_CRL flag is asserted.
1269 *) Extend ASN1 oid configuration module. It now additionally accepts the
1272 shortName = some long name, 1.2.3.4
1275 *) Reimplemented the BN_CTX implementation. There is now no more static
1276 limitation on the number of variables it can handle nor the depth of the
1277 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1278 information can now expand as required, and rather than having a single
1279 static array of bignums, BN_CTX now uses a linked-list of such arrays
1280 allowing it to expand on demand whilst maintaining the usefulness of
1281 BN_CTX's "bundling".
1284 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1285 to allow all RSA operations to function using a single BN_CTX.
1288 *) Preliminary support for certificate policy evaluation and checking. This
1289 is initially intended to pass the tests outlined in "Conformance Testing
1290 of Relying Party Client Certificate Path Processing Logic" v1.07.
1293 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1294 remained unused and not that useful. A variety of other little bignum
1295 tweaks and fixes have also been made continuing on from the audit (see
1299 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1300 associated ASN1, EVP and SSL functions and old ASN1 macros.
1303 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1304 and this should never fail. So the return value from the use of
1305 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1306 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1309 *) BN_CTX_get() should return zero-valued bignums, providing the same
1310 initialised value as BN_new().
1311 [Geoff Thorpe, suggested by Ulf Möller]
1313 *) Support for inhibitAnyPolicy certificate extension.
1316 *) An audit of the BIGNUM code is underway, for which debugging code is
1317 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1318 is considered valid when processing BIGNUMs, and causes execution to
1319 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1320 further steps are taken to deliberately pollute unused data in BIGNUM
1321 structures to try and expose faulty code further on. For now, openssl will
1322 (in its default mode of operation) continue to tolerate the inconsistent
1323 forms that it has tolerated in the past, but authors and packagers should
1324 consider trying openssl and their own applications when compiled with
1325 these debugging symbols defined. It will help highlight potential bugs in
1326 their own code, and will improve the test coverage for OpenSSL itself. At
1327 some point, these tighter rules will become openssl's default to improve
1328 maintainability, though the assert()s and other overheads will remain only
1329 in debugging configurations. See bn.h for more details.
1330 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1332 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1333 that can only be obtained through BN_CTX_new() (which implicitly
1334 initialises it). The presence of this function only made it possible
1335 to overwrite an existing structure (and cause memory leaks).
1338 *) Because of the callback-based approach for implementing LHASH as a
1339 template type, lh_insert() adds opaque objects to hash-tables and
1340 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1341 to clean up those corresponding objects before destroying the hash table
1342 (and losing the object pointers). So some over-zealous constifications in
1343 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1344 objects as "const" and the lh_doall[_arg] callback wrappers are not
1345 prototyped to have "const" restrictions on the object pointers they are
1346 given (and so aren't required to cast them away any more).
1349 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1350 (speed) prefers to use its own implementation. The two implementations
1351 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1352 its object type properly exposed (MS_TM) instead of casting to/from "char
1353 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1354 aren't necessarily the greatest nomenclatures - but this is what was used
1355 internally to the implementation so I've used that for now.
1358 *) Ensure that deprecated functions do not get compiled when
1359 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1360 the self-tests were still using deprecated key-generation functions so
1361 these have been updated also.
1364 *) Reorganise PKCS#7 code to separate the digest location functionality
1365 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1366 New function PKCS7_set_digest() to set the digest type for PKCS#7
1367 digestedData type. Add additional code to correctly generate the
1368 digestedData type and add support for this type in PKCS7 initialization
1372 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1373 structure of type "other".
1376 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1377 sure the loop does correctly stop and breaking ("division by zero")
1378 modulus operations are not performed. The (pre-generated) prime
1379 table crypto/bn/bn_prime.h was already correct, but it could not be
1380 re-generated on some platforms because of the "division by zero"
1381 situation in the script.
1382 [Ralf S. Engelschall]
1384 *) Update support for ECC-based TLS ciphersuites according to
1385 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1386 SHA-1 now is only used for "small" curves (where the
1387 representation of a field element takes up to 24 bytes); for
1388 larger curves, the field element resulting from ECDH is directly
1389 used as premaster secret.
1390 [Douglas Stebila (Sun Microsystems Laboratories)]
1392 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1393 curve secp160r1 to the tests.
1394 [Douglas Stebila (Sun Microsystems Laboratories)]
1396 *) Add the possibility to load symbols globally with DSO.
1397 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1399 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1400 control of the error stack.
1403 *) Add support for STORE in ENGINE.
1406 *) Add the STORE type. The intention is to provide a common interface
1407 to certificate and key stores, be they simple file-based stores, or
1408 HSM-type store, or LDAP stores, or...
1409 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1412 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1413 pass a list of arguments to any function as well as provide a way
1414 for a function to pass data back to the caller.
1417 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1418 works like BUF_strdup() but can be used to duplicate a portion of
1419 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1423 *) Add the function sk_find_ex() which works like sk_find(), but will
1424 return an index to an element even if an exact match couldn't be
1425 found. The index is guaranteed to point at the element where the
1426 searched-for key would be inserted to preserve sorting order.
1429 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1430 takes an extra flags argument for optional functionality. Currently,
1431 the following flags are defined:
1433 OBJ_BSEARCH_VALUE_ON_NOMATCH
1434 This one gets OBJ_bsearch_ex() to return a pointer to the first
1435 element where the comparing function returns a negative or zero
1438 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1439 This one gets OBJ_bsearch_ex() to return a pointer to the first
1440 element where the comparing function returns zero. This is useful
1441 if there are more than one element where the comparing function
1445 *) Make it possible to create self-signed certificates with 'openssl ca'
1446 in such a way that the self-signed certificate becomes part of the
1447 CA database and uses the same mechanisms for serial number generation
1448 as all other certificate signing. The new flag '-selfsign' enables
1449 this functionality. Adapt CA.sh and CA.pl.in.
1452 *) Add functionality to check the public key of a certificate request
1453 against a given private. This is useful to check that a certificate
1454 request can be signed by that key (self-signing).
1457 *) Make it possible to have multiple active certificates with the same
1458 subject in the CA index file. This is done only if the keyword
1459 'unique_subject' is set to 'no' in the main CA section (default
1460 if 'CA_default') of the configuration file. The value is saved
1461 with the database itself in a separate index attribute file,
1462 named like the index file with '.attr' appended to the name.
1465 *) Generate muti valued AVAs using '+' notation in config files for
1469 *) Support for nameConstraints certificate extension.
1472 *) Support for policyConstraints certificate extension.
1475 *) Support for policyMappings certificate extension.
1478 *) Make sure the default DSA_METHOD implementation only uses its
1479 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1480 and change its own handlers to be NULL so as to remove unnecessary
1481 indirection. This lets alternative implementations fallback to the
1482 default implementation more easily.
1485 *) Support for directoryName in GeneralName related extensions
1489 *) Make it possible to link applications using Makefile.shared.
1490 Make that possible even when linking against static libraries!
1493 *) Support for single pass processing for S/MIME signing. This now
1494 means that S/MIME signing can be done from a pipe, in addition
1495 cleartext signing (multipart/signed type) is effectively streaming
1496 and the signed data does not need to be all held in memory.
1498 This is done with a new flag PKCS7_STREAM. When this flag is set
1499 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1500 is done after the data is output (and digests calculated) in
1501 SMIME_write_PKCS7().
1504 *) Add full support for -rpath/-R, both in shared libraries and
1505 applications, at least on the platforms where it's known how
1509 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1510 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1511 will now compute a table of multiples of the generator that
1512 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1513 faster (notably in the case of a single point multiplication,
1514 scalar * generator).
1515 [Nils Larsch, Bodo Moeller]
1517 *) IPv6 support for certificate extensions. The various extensions
1518 which use the IP:a.b.c.d can now take IPv6 addresses using the
1519 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1523 *) Added an ENGINE that implements RSA by performing private key
1524 exponentiations with the GMP library. The conversions to and from
1525 GMP's mpz_t format aren't optimised nor are any montgomery forms
1526 cached, and on x86 it appears OpenSSL's own performance has caught up.
1527 However there are likely to be other architectures where GMP could
1528 provide a boost. This ENGINE is not built in by default, but it can be
1529 specified at Configure time and should be accompanied by the necessary
1530 linker additions, eg;
1531 ./config -DOPENSSL_USE_GMP -lgmp
1534 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1535 testing availability of engines with "-t" - the old behaviour is
1536 produced by increasing the feature's verbosity with "-tt".
1539 *) ECDSA routines: under certain error conditions uninitialized BN objects
1540 could be freed. Solution: make sure initialization is performed early
1541 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1545 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1546 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1547 software implementations. For DSA and DH, parameter generation can
1548 also be overriden by providing the appropriate method callbacks.
1551 *) Change the "progress" mechanism used in key-generation and
1552 primality testing to functions that take a new BN_GENCB pointer in
1553 place of callback/argument pairs. The new API functions have "_ex"
1554 postfixes and the older functions are reimplemented as wrappers for
1555 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1556 declarations of the old functions to help (graceful) attempts to
1557 migrate to the new functions. Also, the new key-generation API
1558 functions operate on a caller-supplied key-structure and return
1559 success/failure rather than returning a key or NULL - this is to
1560 help make "keygen" another member function of RSA_METHOD etc.
1562 Example for using the new callback interface:
1564 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1568 BN_GENCB_set(&my_cb, my_callback, my_arg);
1570 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1571 /* For the meaning of a, b in calls to my_callback(), see the
1572 * documentation of the function that calls the callback.
1573 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1574 * my_callback should return 1 if it wants BN_is_prime_ex()
1575 * to continue, or 0 to stop.
1580 *) Change the ZLIB compression method to be stateful, and make it
1581 available to TLS with the number defined in
1582 draft-ietf-tls-compression-04.txt.
1585 *) Add the ASN.1 structures and functions for CertificatePair, which
1586 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1588 CertificatePair ::= SEQUENCE {
1589 forward [0] Certificate OPTIONAL,
1590 reverse [1] Certificate OPTIONAL,
1591 -- at least one of the pair shall be present -- }
1593 Also implement the PEM functions to read and write certificate
1594 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1596 This needed to be defined, mostly for the sake of the LDAP
1597 attribute crossCertificatePair, but may prove useful elsewhere as
1601 *) Make it possible to inhibit symlinking of shared libraries in
1602 Makefile.shared, for Cygwin's sake.
1605 *) Extend the BIGNUM API by creating a function
1606 void BN_set_negative(BIGNUM *a, int neg);
1607 and a macro that behave like
1608 int BN_is_negative(const BIGNUM *a);
1610 to avoid the need to access 'a->neg' directly in applications.
1613 *) Implement fast modular reduction for pseudo-Mersenne primes
1614 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1615 EC_GROUP_new_curve_GFp() will now automatically use this
1617 [Nils Larsch <nla@trustcenter.de>]
1619 *) Add new lock type (CRYPTO_LOCK_BN).
1622 *) Change the ENGINE framework to automatically load engines
1623 dynamically from specific directories unless they could be
1624 found to already be built in or loaded. Move all the
1625 current engines except for the cryptodev one to a new
1627 The engines in engines/ are built as shared libraries if
1628 the "shared" options was given to ./Configure or ./config.
1629 Otherwise, they are inserted in libcrypto.a.
1630 /usr/local/ssl/engines is the default directory for dynamic
1631 engines, but that can be overriden at configure time through
1632 the usual use of --prefix and/or --openssldir, and at run
1633 time with the environment variable OPENSSL_ENGINES.
1634 [Geoff Thorpe and Richard Levitte]
1636 *) Add Makefile.shared, a helper makefile to build shared
1637 libraries. Addapt Makefile.org.
1640 *) Add version info to Win32 DLLs.
1641 [Peter 'Luna' Runestig" <peter@runestig.com>]
1643 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1644 can be added using this API to created arbitrary PKCS#12
1645 files while avoiding the low level API.
1647 New options to PKCS12_create(), key or cert can be NULL and
1648 will then be omitted from the output file. The encryption
1649 algorithm NIDs can be set to -1 for no encryption, the mac
1650 iteration count can be set to 0 to omit the mac.
1652 Enhance pkcs12 utility by making the -nokeys and -nocerts
1653 options work when creating a PKCS#12 file. New option -nomac
1654 to omit the mac, NONE can be set for an encryption algorithm.
1655 New code is modified to use the enhanced PKCS12_create()
1656 instead of the low level API.
1659 *) Extend ASN1 encoder to support indefinite length constructed
1660 encoding. This can output sequences tags and octet strings in
1661 this form. Modify pk7_asn1.c to support indefinite length
1662 encoding. This is experimental and needs additional code to
1663 be useful, such as an ASN1 bio and some enhanced streaming
1666 Extend template encode functionality so that tagging is passed
1667 down to the template encoder.
1670 *) Let 'openssl req' fail if an argument to '-newkey' is not
1671 recognized instead of using RSA as a default.
1674 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1675 As these are not official, they are not included in "ALL";
1676 the "ECCdraft" ciphersuite group alias can be used to select them.
1677 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1679 *) Add ECDH engine support.
1680 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1682 *) Add ECDH in new directory crypto/ecdh/.
1683 [Douglas Stebila (Sun Microsystems Laboratories)]
1685 *) Let BN_rand_range() abort with an error after 100 iterations
1686 without success (which indicates a broken PRNG).
1689 *) Change BN_mod_sqrt() so that it verifies that the input value
1690 is really the square of the return value. (Previously,
1691 BN_mod_sqrt would show GIGO behaviour.)
1694 *) Add named elliptic curves over binary fields from X9.62, SECG,
1695 and WAP/WTLS; add OIDs that were still missing.
1697 [Sheueling Chang Shantz and Douglas Stebila
1698 (Sun Microsystems Laboratories)]
1700 *) Extend the EC library for elliptic curves over binary fields
1701 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1704 EC_GF2m_simple_method
1708 EC_GROUP_new_curve_GF2m
1709 EC_GROUP_set_curve_GF2m
1710 EC_GROUP_get_curve_GF2m
1711 EC_POINT_set_affine_coordinates_GF2m
1712 EC_POINT_get_affine_coordinates_GF2m
1713 EC_POINT_set_compressed_coordinates_GF2m
1715 Point compression for binary fields is disabled by default for
1716 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1719 As binary polynomials are represented as BIGNUMs, various members
1720 of the EC_GROUP and EC_POINT data structures can be shared
1721 between the implementations for prime fields and binary fields;
1722 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1723 are essentially identical to their ..._GFp counterparts.
1724 (For simplicity, the '..._GFp' prefix has been dropped from
1725 various internal method names.)
1727 An internal 'field_div' method (similar to 'field_mul' and
1728 'field_sqr') has been added; this is used only for binary fields.
1730 [Sheueling Chang Shantz and Douglas Stebila
1731 (Sun Microsystems Laboratories)]
1733 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1734 through methods ('mul', 'precompute_mult').
1736 The generic implementations (now internally called 'ec_wNAF_mul'
1737 and 'ec_wNAF_precomputed_mult') remain the default if these
1738 methods are undefined.
1740 [Sheueling Chang Shantz and Douglas Stebila
1741 (Sun Microsystems Laboratories)]
1743 *) New function EC_GROUP_get_degree, which is defined through
1744 EC_METHOD. For curves over prime fields, this returns the bit
1745 length of the modulus.
1747 [Sheueling Chang Shantz and Douglas Stebila
1748 (Sun Microsystems Laboratories)]
1750 *) New functions EC_GROUP_dup, EC_POINT_dup.
1751 (These simply call ..._new and ..._copy).
1753 [Sheueling Chang Shantz and Douglas Stebila
1754 (Sun Microsystems Laboratories)]
1756 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1757 Polynomials are represented as BIGNUMs (where the sign bit is not
1758 used) in the following functions [macros]:
1761 BN_GF2m_sub [= BN_GF2m_add]
1762 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1763 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1764 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1766 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1767 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1768 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1769 BN_GF2m_cmp [= BN_ucmp]
1771 (Note that only the 'mod' functions are actually for fields GF(2^m).
1772 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1774 For some functions, an the irreducible polynomial defining a
1775 field can be given as an 'unsigned int[]' with strictly
1776 decreasing elements giving the indices of those bits that are set;
1777 i.e., p[] represents the polynomial
1778 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1780 p[0] > p[1] > ... > p[k] = 0.
1781 This applies to the following functions:
1786 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1787 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1789 BN_GF2m_mod_sqrt_arr
1790 BN_GF2m_mod_solve_quad_arr
1794 Conversion can be performed by the following functions:
1799 bntest.c has additional tests for binary polynomial arithmetic.
1801 Two implementations for BN_GF2m_mod_div() are available.
1802 The default algorithm simply uses BN_GF2m_mod_inv() and
1803 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1804 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1805 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1807 [Sheueling Chang Shantz and Douglas Stebila
1808 (Sun Microsystems Laboratories)]
1810 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1811 functionality is disabled at compile-time.
1812 [Douglas Stebila <douglas.stebila@sun.com>]
1814 *) Change default behaviour of 'openssl asn1parse' so that more
1815 information is visible when viewing, e.g., a certificate:
1817 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1818 mode the content of non-printable OCTET STRINGs is output in a
1819 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1820 avoid the appearance of a printable string.
1821 [Nils Larsch <nla@trustcenter.de>]
1823 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1825 EC_GROUP_set_asn1_flag()
1826 EC_GROUP_get_asn1_flag()
1827 EC_GROUP_set_point_conversion_form()
1828 EC_GROUP_get_point_conversion_form()
1829 These control ASN1 encoding details:
1830 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1831 has been set to OPENSSL_EC_NAMED_CURVE.
1832 - Points are encoded in uncompressed form by default; options for
1833 asn1_for are as for point2oct, namely
1834 POINT_CONVERSION_COMPRESSED
1835 POINT_CONVERSION_UNCOMPRESSED
1836 POINT_CONVERSION_HYBRID
1838 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1841 EC_GROUP_get0_seed()
1842 EC_GROUP_get_seed_len()
1843 This is used only for ASN1 purposes (so far).
1844 [Nils Larsch <nla@trustcenter.de>]
1846 *) Add 'field_type' member to EC_METHOD, which holds the NID
1847 of the appropriate field type OID. The new function
1848 EC_METHOD_get_field_type() returns this value.
1849 [Nils Larsch <nla@trustcenter.de>]
1854 EC_POINT_point2hex()
1855 EC_POINT_hex2point()
1856 providing useful interfaces to EC_POINT_point2oct() and
1857 EC_POINT_oct2point().
1858 [Nils Larsch <nla@trustcenter.de>]
1860 *) Change internals of the EC library so that the functions
1861 EC_GROUP_set_generator()
1862 EC_GROUP_get_generator()
1863 EC_GROUP_get_order()
1864 EC_GROUP_get_cofactor()
1865 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1866 to methods, which would lead to unnecessary code duplication when
1867 adding different types of curves.
1868 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1870 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1871 arithmetic, and such that modified wNAFs are generated
1872 (which avoid length expansion in many cases).
1875 *) Add a function EC_GROUP_check_discriminant() (defined via
1876 EC_METHOD) that verifies that the curve discriminant is non-zero.
1878 Add a function EC_GROUP_check() that makes some sanity tests
1879 on a EC_GROUP, its generator and order. This includes
1880 EC_GROUP_check_discriminant().
1881 [Nils Larsch <nla@trustcenter.de>]
1883 *) Add ECDSA in new directory crypto/ecdsa/.
1885 Add applications 'openssl ecparam' and 'openssl ecdsa'
1886 (these are based on 'openssl dsaparam' and 'openssl dsa').
1888 ECDSA support is also included in various other files across the
1889 library. Most notably,
1890 - 'openssl req' now has a '-newkey ecdsa:file' option;
1891 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1892 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1893 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1894 them suitable for ECDSA where domain parameters must be
1895 extracted before the specific public key;
1896 - ECDSA engine support has been added.
1897 [Nils Larsch <nla@trustcenter.de>]
1899 *) Include some named elliptic curves, and add OIDs from X9.62,
1900 SECG, and WAP/WTLS. Each curve can be obtained from the new
1902 EC_GROUP_new_by_curve_name(),
1903 and the list of available named curves can be obtained with
1904 EC_get_builtin_curves().
1905 Also add a 'curve_name' member to EC_GROUP objects, which can be
1907 EC_GROUP_set_curve_name()
1908 EC_GROUP_get_curve_name()
1909 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1911 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1912 was actually never needed) and in BN_mul(). The removal in BN_mul()
1913 required a small change in bn_mul_part_recursive() and the addition
1914 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1915 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1916 bn_sub_words() and bn_add_words() except they take arrays with
1920 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1922 *) In the SSL/TLS server implementation, be strict about session ID
1923 context matching (which matters if an application uses a single
1924 external cache for different purposes). Previously,
1925 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1926 set. This did ensure strict client verification, but meant that,
1927 with applications using a single external cache for quite
1928 different requirements, clients could circumvent ciphersuite
1929 restrictions for a given session ID context by starting a session
1930 in a different context.
1933 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1935 *) Cleanse PEM buffers before freeing them since they may contain
1937 [Benjamin Bennett <ben@psc.edu>]
1939 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1940 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1941 authentication-only ciphersuites.
1944 *) Since AES128 and AES256 share a single mask bit in the logic of
1945 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1946 kludge to work properly if AES128 is available and AES256 isn't.
1949 *) Expand security boundary to match 1.1.1 module.
1952 *) Remove redundant features: hash file source, editing of test vectors
1953 modify fipsld to use external fips_premain.c signature.
1956 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1957 run algorithm test programs.
1960 *) Make algorithm test programs more tolerant of whitespace.
1963 *) Have SSL/TLS server implementation tolerate "mismatched" record
1964 protocol version while receiving ClientHello even if the
1965 ClientHello is fragmented. (The server can't insist on the
1966 particular protocol version it has chosen before the ServerHello
1967 message has informed the client about his choice.)
1970 *) Load error codes if they are not already present instead of using a
1971 static variable. This allows them to be cleanly unloaded and reloaded.
1974 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1976 *) Introduce limits to prevent malicious keys being able to
1977 cause a denial of service. (CVE-2006-2940)
1978 [Steve Henson, Bodo Moeller]
1980 *) Fix ASN.1 parsing of certain invalid structures that can result
1981 in a denial of service. (CVE-2006-2937) [Steve Henson]
1983 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1984 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1986 *) Fix SSL client code which could crash if connecting to a
1987 malicious SSLv2 server. (CVE-2006-4343)
1988 [Tavis Ormandy and Will Drewry, Google Security Team]
1990 *) Change ciphersuite string processing so that an explicit
1991 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1992 will no longer include "AES128-SHA"), and any other similar
1993 ciphersuite (same bitmap) from *other* protocol versions (so that
1994 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1995 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1996 changes from 0.9.8b and 0.9.8d.
1999 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2001 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2002 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2004 *) Change the Unix randomness entropy gathering to use poll() when
2005 possible instead of select(), since the latter has some
2006 undesirable limitations.
2007 [Darryl Miles via Richard Levitte and Bodo Moeller]
2009 *) Disable rogue ciphersuites:
2011 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2012 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2013 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2015 The latter two were purportedly from
2016 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2019 Also deactive the remaining ciphersuites from
2020 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2021 unofficial, and the ID has long expired.
2024 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2025 dual-core machines) and other potential thread-safety issues.
2028 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2030 *) Adapt fipsld and the build system to link against the validated FIPS
2031 module in FIPS mode.
2034 *) Fixes for VC++ 2005 build under Windows.
2037 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2038 from a Windows bash shell such as MSYS. It is autodetected from the
2039 "config" script when run from a VC++ environment. Modify standard VC++
2040 build to use fipscanister.o from the GNU make build.
2043 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2045 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2046 The value now differs depending on if you build for FIPS or not.
2047 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2048 safely run with a non-FIPSed libcrypto, as it may crash because of
2049 the difference induced by this change.
2052 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2054 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2055 (part of SSL_OP_ALL). This option used to disable the
2056 countermeasure against man-in-the-middle protocol-version
2057 rollback in the SSL 2.0 server implementation, which is a bad
2058 idea. (CVE-2005-2969)
2060 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2061 for Information Security, National Institute of Advanced Industrial
2062 Science and Technology [AIST], Japan)]
2064 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2065 mainly for FIPS compliance and not fully integrated at this stage.
2068 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2069 the exponentiation using a fixed-length exponent. (Otherwise,
2070 the information leaked through timing could expose the secret key
2071 after many signatures; cf. Bleichenbacher's attack on DSA with
2075 *) Make a new fixed-window mod_exp implementation the default for
2076 RSA, DSA, and DH private-key operations so that the sequence of
2077 squares and multiplies and the memory access pattern are
2078 independent of the particular secret key. This will mitigate
2079 cache-timing and potential related attacks.
2081 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2082 and this is automatically used by BN_mod_exp_mont() if the new flag
2083 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2084 will use this BN flag for private exponents unless the flag
2085 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2086 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2088 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2090 *) Change the client implementation for SSLv23_method() and
2091 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2092 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2093 (Previously, the SSL 2.0 backwards compatible Client Hello
2094 message format would be used even with SSL_OP_NO_SSLv2.)
2097 *) Add support for smime-type MIME parameter in S/MIME messages which some
2101 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2102 a threadsafe manner. Modify rsa code to use new function and add calls
2103 to dsa and dh code (which had race conditions before).
2106 *) Include the fixed error library code in the C error file definitions
2107 instead of fixing them up at runtime. This keeps the error code
2108 structures constant.
2111 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2113 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2116 *) Fixes for newer kerberos headers. NB: the casts are needed because
2117 the 'length' field is signed on one version and unsigned on another
2118 with no (?) obvious way to tell the difference, without these VC++
2119 complains. Also the "definition" of FAR (blank) is no longer included
2120 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2121 some needed definitions.
2124 *) Undo Cygwin change.
2127 *) Added support for proxy certificates according to RFC 3820.
2128 Because they may be a security thread to unaware applications,
2129 they must be explicitely allowed in run-time. See
2130 docs/HOWTO/proxy_certificates.txt for further information.
2133 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2135 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2136 server and client random values. Previously
2137 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2138 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2140 This change has negligible security impact because:
2142 1. Server and client random values still have 24 bytes of pseudo random
2145 2. Server and client random values are sent in the clear in the initial
2148 3. The master secret is derived using the premaster secret (48 bytes in
2149 size for static RSA ciphersuites) as well as client server and random
2152 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2155 [Stephen Henson, reported by UK NISCC]
2157 *) Use Windows randomness collection on Cygwin.
2160 *) Fix hang in EGD/PRNGD query when communication socket is closed
2161 prematurely by EGD/PRNGD.
2162 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2164 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2167 *) Back-port of selected performance improvements from development
2168 branch, as well as improved support for PowerPC platforms.
2171 *) Add lots of checks for memory allocation failure, error codes to indicate
2172 failure and freeing up memory if a failure occurs.
2173 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2175 *) Add new -passin argument to dgst.
2178 *) Perform some character comparisons of different types in X509_NAME_cmp:
2179 this is needed for some certificates that reencode DNs into UTF8Strings
2180 (in violation of RFC3280) and can't or wont issue name rollover
2184 *) Make an explicit check during certificate validation to see that
2185 the CA setting in each certificate on the chain is correct. As a
2186 side effect always do the following basic checks on extensions,
2187 not just when there's an associated purpose to the check:
2189 - if there is an unhandled critical extension (unless the user
2190 has chosen to ignore this fault)
2191 - if the path length has been exceeded (if one is set at all)
2192 - that certain extensions fit the associated purpose (if one has
2196 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2198 *) Avoid a race condition when CRLs are checked in a multi threaded
2199 environment. This would happen due to the reordering of the revoked
2200 entries during signature checking and serial number lookup. Now the
2201 encoding is cached and the serial number sort performed under a lock.
2202 Add new STACK function sk_is_sorted().
2205 *) Add Delta CRL to the extension code.
2208 *) Various fixes to s3_pkt.c so alerts are sent properly.
2209 [David Holmes <d.holmes@f5.com>]
2211 *) Reduce the chances of duplicate issuer name and serial numbers (in
2212 violation of RFC3280) using the OpenSSL certificate creation utilities.
2213 This is done by creating a random 64 bit value for the initial serial
2214 number when a serial number file is created or when a self signed
2215 certificate is created using 'openssl req -x509'. The initial serial
2216 number file is created using 'openssl x509 -next_serial' in CA.pl
2217 rather than being initialized to 1.
2220 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2222 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2223 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2224 [Joe Orton, Steve Henson]
2226 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2228 [Joe Orton, Steve Henson]
2230 *) Make it possible to have multiple active certificates with the same
2231 subject in the CA index file. This is done only if the keyword
2232 'unique_subject' is set to 'no' in the main CA section (default
2233 if 'CA_default') of the configuration file. The value is saved
2234 with the database itself in a separate index attribute file,
2235 named like the index file with '.attr' appended to the name.
2238 *) X509 verify fixes. Disable broken certificate workarounds when
2239 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2240 keyUsage extension present. Don't accept CRLs with unhandled critical
2241 extensions: since verify currently doesn't process CRL extensions this
2242 rejects a CRL with *any* critical extensions. Add new verify error codes
2246 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2247 A clarification of RFC2560 will require the use of OCTET STRINGs and
2248 some implementations cannot handle the current raw format. Since OpenSSL
2249 copies and compares OCSP nonces as opaque blobs without any attempt at
2250 parsing them this should not create any compatibility issues.
2253 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2254 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2255 this HMAC (and other) operations are several times slower than OpenSSL
2259 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2260 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2262 *) Use the correct content when signing type "other".
2265 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2267 *) Fix various bugs revealed by running the NISCC test suite:
2269 Stop out of bounds reads in the ASN1 code when presented with
2270 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2272 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2274 If verify callback ignores invalid public key errors don't try to check
2275 certificate signature with the NULL public key.
2279 *) New -ignore_err option in ocsp application to stop the server
2280 exiting on the first error in a request.
2283 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2284 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2288 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2289 extra data after the compression methods not only for TLS 1.0
2290 but also for SSL 3.0 (as required by the specification).
2291 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2293 *) Change X509_certificate_type() to mark the key as exported/exportable
2294 when it's 512 *bits* long, not 512 bytes.
2297 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2298 blocks during encryption.
2301 *) Various fixes to base64 BIO and non blocking I/O. On write
2302 flushes were not handled properly if the BIO retried. On read
2303 data was not being buffered properly and had various logic bugs.
2304 This also affects blocking I/O when the data being decoded is a
2308 *) Various S/MIME bugfixes and compatibility changes:
2309 output correct application/pkcs7 MIME type if
2310 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2311 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2312 of files as .eml work). Correctly handle very long lines in MIME
2316 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2318 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2319 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2320 a protocol version number mismatch like a decryption error
2321 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2324 *) Turn on RSA blinding by default in the default implementation
2325 to avoid a timing attack. Applications that don't want it can call
2326 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2327 They would be ill-advised to do so in most cases.
2328 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2330 *) Change RSA blinding code so that it works when the PRNG is not
2331 seeded (in this case, the secret RSA exponent is abused as
2332 an unpredictable seed -- if it is not unpredictable, there
2333 is no point in blinding anyway). Make RSA blinding thread-safe
2334 by remembering the creator's thread ID in rsa->blinding and
2335 having all other threads use local one-time blinding factors
2336 (this requires more computation than sharing rsa->blinding, but
2337 avoids excessive locking; and if an RSA object is not shared
2338 between threads, blinding will still be very fast).
2341 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2342 ENGINE as defaults for all supported algorithms irrespective of
2343 the 'flags' parameter. 'flags' is now honoured, so applications
2344 should make sure they are passing it correctly.
2347 *) Target "mingw" now allows native Windows code to be generated in
2348 the Cygwin environment as well as with the MinGW compiler.
2351 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2353 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2354 via timing by performing a MAC computation even if incorrrect
2355 block cipher padding has been found. This is a countermeasure
2356 against active attacks where the attacker has to distinguish
2357 between bad padding and a MAC verification error. (CVE-2003-0078)
2359 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2360 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2361 Martin Vuagnoux (EPFL, Ilion)]
2363 *) Make the no-err option work as intended. The intention with no-err
2364 is not to have the whole error stack handling routines removed from
2365 libcrypto, it's only intended to remove all the function name and
2366 reason texts, thereby removing some of the footprint that may not
2367 be interesting if those errors aren't displayed anyway.
2369 NOTE: it's still possible for any application or module to have it's
2370 own set of error texts inserted. The routines are there, just not
2371 used by default when no-err is given.
2374 *) Add support for FreeBSD on IA64.
2375 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2377 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2378 Kerberos function mit_des_cbc_cksum(). Before this change,
2379 the value returned by DES_cbc_cksum() was like the one from
2380 mit_des_cbc_cksum(), except the bytes were swapped.
2381 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2383 *) Allow an application to disable the automatic SSL chain building.
2384 Before this a rather primitive chain build was always performed in
2385 ssl3_output_cert_chain(): an application had no way to send the
2386 correct chain if the automatic operation produced an incorrect result.
2388 Now the chain builder is disabled if either:
2390 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2392 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2394 The reasoning behind this is that an application would not want the
2395 auto chain building to take place if extra chain certificates are
2396 present and it might also want a means of sending no additional
2397 certificates (for example the chain has two certificates and the
2401 *) Add the possibility to build without the ENGINE framework.
2402 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2404 *) Under Win32 gmtime() can return NULL: check return value in
2405 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2408 *) DSA routines: under certain error conditions uninitialized BN objects
2409 could be freed. Solution: make sure initialization is performed early
2410 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2411 Nils Larsch <nla@trustcenter.de> via PR#459)
2414 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2415 checked on reconnect on the client side, therefore session resumption
2416 could still fail with a "ssl session id is different" error. This
2417 behaviour is masked when SSL_OP_ALL is used due to
2418 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2419 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2420 followup to PR #377.
2423 *) IA-32 assembler support enhancements: unified ELF targets, support
2424 for SCO/Caldera platforms, fix for Cygwin shared build.
2427 *) Add support for FreeBSD on sparc64. As a consequence, support for
2428 FreeBSD on non-x86 processors is separate from x86 processors on
2429 the config script, much like the NetBSD support.
2430 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2432 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2434 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2437 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2438 code (06) was taken as the first octet of the session ID and the last
2439 octet was ignored consequently. As a result SSLv2 client side session
2440 caching could not have worked due to the session ID mismatch between
2442 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2446 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2447 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2451 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2452 seems that in spite of existing for more than a year, many application
2453 author have done nothing to provide the necessary callbacks, which
2454 means that this particular engine will not work properly anywhere.
2455 This is a very unfortunate situation which forces us, in the name
2456 of usability, to give the hw_ncipher.c a static lock, which is part
2458 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2459 appear in 0.9.8 or later. We EXPECT application authors to have
2460 dealt properly with this when 0.9.8 is released (unless we actually
2461 make such changes in the libcrypto locking code that changes will
2462 have to be made anyway).
2465 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2466 octets have been read, EOF or an error occurs. Without this change
2467 some truncated ASN1 structures will not produce an error.
2470 *) Disable Heimdal support, since it hasn't been fully implemented.
2471 Still give the possibility to force the use of Heimdal, but with
2472 warnings and a request that patches get sent to openssl-dev.
2475 *) Add the VC-CE target, introduce the WINCE sysname, and add
2476 INSTALL.WCE and appropriate conditionals to make it build.
2477 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2479 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2480 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2481 edit numbers of the version.
2482 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2484 *) Introduce safe string copy and catenation functions
2485 (BUF_strlcpy() and BUF_strlcat()).
2486 [Ben Laurie (CHATS) and Richard Levitte]
2488 *) Avoid using fixed-size buffers for one-line DNs.
2489 [Ben Laurie (CHATS)]
2491 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2492 resizing buffers containing secrets, and use where appropriate.
2493 [Ben Laurie (CHATS)]
2495 *) Avoid using fixed size buffers for configuration file location.
2496 [Ben Laurie (CHATS)]
2498 *) Avoid filename truncation for various CA files.
2499 [Ben Laurie (CHATS)]
2501 *) Use sizeof in preference to magic numbers.
2502 [Ben Laurie (CHATS)]
2504 *) Avoid filename truncation in cert requests.
2505 [Ben Laurie (CHATS)]
2507 *) Add assertions to check for (supposedly impossible) buffer
2509 [Ben Laurie (CHATS)]
2511 *) Don't cache truncated DNS entries in the local cache (this could
2512 potentially lead to a spoofing attack).
2513 [Ben Laurie (CHATS)]
2515 *) Fix various buffers to be large enough for hex/decimal
2516 representations in a platform independent manner.
2517 [Ben Laurie (CHATS)]
2519 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2520 resizing buffers containing secrets, and use where appropriate.
2521 [Ben Laurie (CHATS)]
2523 *) Add BIO_indent() to avoid much slightly worrying code to do
2525 [Ben Laurie (CHATS)]
2527 *) Convert sprintf()/BIO_puts() to BIO_printf().
2528 [Ben Laurie (CHATS)]
2530 *) buffer_gets() could terminate with the buffer only half
2532 [Ben Laurie (CHATS)]
2534 *) Add assertions to prevent user-supplied crypto functions from
2535 overflowing internal buffers by having large block sizes, etc.
2536 [Ben Laurie (CHATS)]
2538 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2540 [Ben Laurie (CHATS)]
2542 *) Eliminate unused copy of key in RC4.
2543 [Ben Laurie (CHATS)]
2545 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2546 [Ben Laurie (CHATS)]
2548 *) Fix off-by-one error in EGD path.
2549 [Ben Laurie (CHATS)]
2551 *) If RANDFILE path is too long, ignore instead of truncating.
2552 [Ben Laurie (CHATS)]
2554 *) Eliminate unused and incorrectly sized X.509 structure
2556 [Ben Laurie (CHATS)]
2558 *) Eliminate unused and dangerous function knumber().
2559 [Ben Laurie (CHATS)]
2561 *) Eliminate unused and dangerous structure, KSSL_ERR.
2562 [Ben Laurie (CHATS)]
2564 *) Protect against overlong session ID context length in an encoded
2565 session object. Since these are local, this does not appear to be
2567 [Ben Laurie (CHATS)]
2569 *) Change from security patch (see 0.9.6e below) that did not affect
2570 the 0.9.6 release series:
2572 Remote buffer overflow in SSL3 protocol - an attacker could
2573 supply an oversized master key in Kerberos-enabled versions.
2575 [Ben Laurie (CHATS)]
2577 *) Change the SSL kerb5 codes to match RFC 2712.
2580 *) Make -nameopt work fully for req and add -reqopt switch.
2581 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2583 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2584 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2586 *) Make sure tests can be performed even if the corresponding algorithms
2587 have been removed entirely. This was also the last step to make
2588 OpenSSL compilable with DJGPP under all reasonable conditions.
2589 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2591 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2592 to allow version independent disabling of normally unselected ciphers,
2593 which may be activated as a side-effect of selecting a single cipher.
2595 (E.g., cipher list string "RSA" enables ciphersuites that are left
2596 out of "ALL" because they do not provide symmetric encryption.
2597 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2598 [Lutz Jaenicke, Bodo Moeller]
2600 *) Add appropriate support for separate platform-dependent build
2601 directories. The recommended way to make a platform-dependent
2602 build directory is the following (tested on Linux), maybe with
2605 # Place yourself outside of the OpenSSL source tree. In
2606 # this example, the environment variable OPENSSL_SOURCE
2607 # is assumed to contain the absolute OpenSSL source directory.
2608 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2609 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2610 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2611 mkdir -p `dirname $F`
2612 ln -s $OPENSSL_SOURCE/$F $F
2615 To be absolutely sure not to disturb the source tree, a "make clean"
2616 is a good thing. If it isn't successfull, don't worry about it,
2617 it probably means the source directory is very clean.
2620 *) Make sure any ENGINE control commands make local copies of string
2621 pointers passed to them whenever necessary. Otherwise it is possible
2622 the caller may have overwritten (or deallocated) the original string
2623 data when a later ENGINE operation tries to use the stored values.
2624 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2626 *) Improve diagnostics in file reading and command-line digests.
2627 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2629 *) Add AES modes CFB and OFB to the object database. Correct an
2630 error in AES-CFB decryption.
2633 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2634 allows existing EVP_CIPHER_CTX structures to be reused after
2635 calling EVP_*Final(). This behaviour is used by encryption
2636 BIOs and some applications. This has the side effect that
2637 applications must explicitly clean up cipher contexts with
2638 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2641 *) Check the values of dna and dnb in bn_mul_recursive before calling
2642 bn_mul_comba (a non zero value means the a or b arrays do not contain
2643 n2 elements) and fallback to bn_mul_normal if either is not zero.
2646 *) Fix escaping of non-ASCII characters when using the -subj option
2647 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2650 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2651 form for "surname", serialNumber has no short form.
2652 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2653 therefore remove "mail" short name for "internet 7".
2654 The OID for unique identifiers in X509 certificates is
2655 x500UniqueIdentifier, not uniqueIdentifier.
2656 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2659 *) Add an "init" command to the ENGINE config module and auto initialize
2660 ENGINEs. Without any "init" command the ENGINE will be initialized
2661 after all ctrl commands have been executed on it. If init=1 the
2662 ENGINE is initailized at that point (ctrls before that point are run
2663 on the uninitialized ENGINE and after on the initialized one). If
2664 init=0 then the ENGINE will not be iniatialized at all.
2667 *) Fix the 'app_verify_callback' interface so that the user-defined
2668 argument is actually passed to the callback: In the
2669 SSL_CTX_set_cert_verify_callback() prototype, the callback
2670 declaration has been changed from
2673 int (*cb)(X509_STORE_CTX *,void *);
2674 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2675 i=s->ctx->app_verify_callback(&ctx)
2676 has been changed into
2677 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2679 To update applications using SSL_CTX_set_cert_verify_callback(),
2680 a dummy argument can be added to their callback functions.
2681 [D. K. Smetters <smetters@parc.xerox.com>]
2683 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2684 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2686 *) Add and OPENSSL_LOAD_CONF define which will cause
2687 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2688 This allows older applications to transparently support certain
2689 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2690 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2691 load the config file and OPENSSL_add_all_algorithms_conf() which will
2692 always load it have also been added.
2695 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2696 Adjust NIDs and EVP layer.
2697 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2699 *) Config modules support in openssl utility.
2701 Most commands now load modules from the config file,
2702 though in a few (such as version) this isn't done
2703 because it couldn't be used for anything.
2705 In the case of ca and req the config file used is
2706 the same as the utility itself: that is the -config
2707 command line option can be used to specify an
2711 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2712 use "openssl_conf" if filename is NULL use default openssl config file.
2715 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2716 config section name. Add a new flag to tolerate a missing config file
2717 and move code to CONF_modules_load_file().
2720 *) Support for crypto accelerator cards from Accelerated Encryption
2721 Processing, www.aep.ie. (Use engine 'aep')
2722 The support was copied from 0.9.6c [engine] and adapted/corrected
2723 to work with the new engine framework.
2724 [AEP Inc. and Richard Levitte]
2726 *) Support for SureWare crypto accelerator cards from Baltimore
2727 Technologies. (Use engine 'sureware')
2728 The support was copied from 0.9.6c [engine] and adapted
2729 to work with the new engine framework.
2732 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2733 make the newer ENGINE framework commands for the CHIL engine work.
2734 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2736 *) Make it possible to produce shared libraries on ReliantUNIX.
2737 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2739 *) Add the configuration target debug-linux-ppro.
2740 Make 'openssl rsa' use the general key loading routines
2741 implemented in apps.c, and make those routines able to
2742 handle the key format FORMAT_NETSCAPE and the variant
2744 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2746 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2747 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2749 *) Add -keyform to rsautl, and document -engine.
2750 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2752 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2753 BIO_R_NO_SUCH_FILE error code rather than the generic
2754 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2757 *) Add new functions
2759 ERR_peek_last_error_line
2760 ERR_peek_last_error_line_data.
2761 These are similar to
2764 ERR_peek_error_line_data,
2765 but report on the latest error recorded rather than the first one
2766 still in the error queue.
2767 [Ben Laurie, Bodo Moeller]
2769 *) default_algorithms option in ENGINE config module. This allows things
2771 default_algorithms = ALL
2772 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2775 *) Prelminary ENGINE config module.
2778 *) New experimental application configuration code.
2781 *) Change the AES code to follow the same name structure as all other
2782 symmetric ciphers, and behave the same way. Move everything to
2783 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2784 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2786 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2787 [Ben Laurie and Theo de Raadt]
2789 *) Add option to output public keys in req command.
2790 [Massimiliano Pala madwolf@openca.org]
2792 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2793 (up to about 10% better than before for P-192 and P-224).
2796 *) New functions/macros
2798 SSL_CTX_set_msg_callback(ctx, cb)
2799 SSL_CTX_set_msg_callback_arg(ctx, arg)
2800 SSL_set_msg_callback(ssl, cb)
2801 SSL_set_msg_callback_arg(ssl, arg)
2803 to request calling a callback function
2805 void cb(int write_p, int version, int content_type,
2806 const void *buf, size_t len, SSL *ssl, void *arg)
2808 whenever a protocol message has been completely received
2809 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2810 protocol version according to which the SSL library interprets
2811 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2812 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2813 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2814 specification (change_cipher_spec(20), alert(21), handshake(22)).
2815 'buf' and 'len' point to the actual message, 'ssl' to the
2816 SSL object, and 'arg' is the application-defined value set by
2817 SSL[_CTX]_set_msg_callback_arg().
2819 'openssl s_client' and 'openssl s_server' have new '-msg' options
2820 to enable a callback that displays all protocol messages.
2823 *) Change the shared library support so shared libraries are built as
2824 soon as the corresponding static library is finished, and thereby get
2825 openssl and the test programs linked against the shared library.
2826 This still only happens when the keyword "shard" has been given to
2827 the configuration scripts.
2829 NOTE: shared library support is still an experimental thing, and
2830 backward binary compatibility is still not guaranteed.
2831 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2833 *) Add support for Subject Information Access extension.
2834 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2836 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2837 additional bytes when new memory had to be allocated, not just
2838 when reusing an existing buffer.
2841 *) New command line and configuration option 'utf8' for the req command.
2842 This allows field values to be specified as UTF8 strings.
2845 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2846 runs for the former and machine-readable output for the latter.
2849 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2850 of the e-mail address in the DN (i.e., it will go into a certificate
2851 extension only). The new configuration file option 'email_in_dn = no'
2852 has the same effect.
2853 [Massimiliano Pala madwolf@openca.org]
2855 *) Change all functions with names starting with des_ to be starting
2856 with DES_ instead. Add wrappers that are compatible with libdes,
2857 but are named _ossl_old_des_*. Finally, add macros that map the
2858 des_* symbols to the corresponding _ossl_old_des_* if libdes
2859 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2860 desired, the des_* symbols will be mapped to DES_*, with one
2863 Since we provide two compatibility mappings, the user needs to
2864 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2865 compatibility is desired. The default (i.e., when that macro
2866 isn't defined) is OpenSSL 0.9.6c compatibility.
2868 There are also macros that enable and disable the support of old
2869 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2870 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2871 are defined, the default will apply: to support the old des routines.
2873 In either case, one must include openssl/des.h to get the correct
2874 definitions. Do not try to just include openssl/des_old.h, that
2877 NOTE: This is a major break of an old API into a new one. Software
2878 authors are encouraged to switch to the DES_ style functions. Some
2879 time in the future, des_old.h and the libdes compatibility functions
2880 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2881 default), and then completely removed.
2884 *) Test for certificates which contain unsupported critical extensions.
2885 If such a certificate is found during a verify operation it is
2886 rejected by default: this behaviour can be overridden by either
2887 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2888 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2889 X509_supported_extension() has also been added which returns 1 if a
2890 particular extension is supported.
2893 *) Modify the behaviour of EVP cipher functions in similar way to digests
2894 to retain compatibility with existing code.
2897 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2898 compatibility with existing code. In particular the 'ctx' parameter does
2899 not have to be to be initialized before the call to EVP_DigestInit() and
2900 it is tidied up after a call to EVP_DigestFinal(). New function
2901 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2902 EVP_MD_CTX_copy() changed to not require the destination to be
2903 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2904 requires the destination to be valid.
2906 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2907 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2910 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2911 so that complete 'Handshake' protocol structures are kept in memory
2912 instead of overwriting 'msg_type' and 'length' with 'body' data.
2915 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2916 [Massimo Santin via Richard Levitte]
2918 *) Major restructuring to the underlying ENGINE code. This includes
2919 reduction of linker bloat, separation of pure "ENGINE" manipulation
2920 (initialisation, etc) from functionality dealing with implementations
2921 of specific crypto iterfaces. This change also introduces integrated
2922 support for symmetric ciphers and digest implementations - so ENGINEs
2923 can now accelerate these by providing EVP_CIPHER and EVP_MD
2924 implementations of their own. This is detailed in crypto/engine/README
2925 as it couldn't be adequately described here. However, there are a few
2926 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2927 were changed in the original introduction of ENGINE code have now
2928 reverted back - the hooking from this code to ENGINE is now a good
2929 deal more passive and at run-time, operations deal directly with
2930 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2931 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2932 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2933 they were not being used by the framework as there is no concept of a
2934 BIGNUM_METHOD and they could not be generalised to the new
2935 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2936 ENGINE_cpy() has been removed as it cannot be consistently defined in
2940 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2943 *) Change mkdef.pl to sort symbols that get the same entry number,
2944 and make sure the automatically generated functions ERR_load_*
2945 become part of libeay.num as well.
2948 *) New function SSL_renegotiate_pending(). This returns true once
2949 renegotiation has been requested (either SSL_renegotiate() call
2950 or HelloRequest/ClientHello receveived from the peer) and becomes
2951 false once a handshake has been completed.
2952 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2953 sends a HelloRequest, but does not ensure that a handshake takes
2954 place. SSL_renegotiate_pending() is useful for checking if the
2955 client has followed the request.)
2958 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2959 By default, clients may request session resumption even during
2960 renegotiation (if session ID contexts permit); with this option,
2961 session resumption is possible only in the first handshake.
2963 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2964 more bits available for options that should not be part of
2965 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2968 *) Add some demos for certificate and certificate request creation.
2971 *) Make maximum certificate chain size accepted from the peer application
2972 settable (SSL*_get/set_max_cert_list()), as proposed by
2973 "Douglas E. Engert" <deengert@anl.gov>.
2976 *) Add support for shared libraries for Unixware-7
2977 (Boyd Lynn Gerber <gerberb@zenez.com>).
2980 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2981 be done prior to destruction. Use this to unload error strings from
2982 ENGINEs that load their own error strings. NB: This adds two new API
2983 functions to "get" and "set" this destroy handler in an ENGINE.
2986 *) Alter all existing ENGINE implementations (except "openssl" and
2987 "openbsd") to dynamically instantiate their own error strings. This
2988 makes them more flexible to be built both as statically-linked ENGINEs
2989 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2990 Also, add stub code to each that makes building them as self-contained
2991 shared-libraries easier (see README.ENGINE).
2994 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2995 implementations into applications that are completely implemented in
2996 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2997 commands that can be used to configure what shared-library to load and
2998 to control aspects of the way it is handled. Also, made an update to
2999 the README.ENGINE file that brings its information up-to-date and
3000 provides some information and instructions on the "dynamic" ENGINE
3001 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3004 *) Make it possible to unload ranges of ERR strings with a new
3005 "ERR_unload_strings" function.
3008 *) Add a copy() function to EVP_MD.
3011 *) Make EVP_MD routines take a context pointer instead of just the
3012 md_data void pointer.
3015 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3016 that the digest can only process a single chunk of data
3017 (typically because it is provided by a piece of
3018 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3019 is only going to provide a single chunk of data, and hence the
3020 framework needn't accumulate the data for oneshot drivers.
3023 *) As with "ERR", make it possible to replace the underlying "ex_data"
3024 functions. This change also alters the storage and management of global
3025 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3026 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3027 index counters. The API functions that use this state have been changed
3028 to take a "class_index" rather than pointers to the class's local STACK
3029 and counter, and there is now an API function to dynamically create new
3030 classes. This centralisation allows us to (a) plug a lot of the
3031 thread-safety problems that existed, and (b) makes it possible to clean
3032 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3033 such data would previously have always leaked in application code and
3034 workarounds were in place to make the memory debugging turn a blind eye
3035 to it. Application code that doesn't use this new function will still
3036 leak as before, but their memory debugging output will announce it now
3037 rather than letting it slide.
3039 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3040 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3041 has a return value to indicate success or failure.
3044 *) Make it possible to replace the underlying "ERR" functions such that the
3045 global state (2 LHASH tables and 2 locks) is only used by the "default"
3046 implementation. This change also adds two functions to "get" and "set"
3047 the implementation prior to it being automatically set the first time
3048 any other ERR function takes place. Ie. an application can call "get",
3049 pass the return value to a module it has just loaded, and that module
3050 can call its own "set" function using that value. This means the
3051 module's "ERR" operations will use (and modify) the error state in the
3052 application and not in its own statically linked copy of OpenSSL code.
3055 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3056 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3057 the operation, and provides a more encapsulated way for external code
3058 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3059 to use these functions rather than manually incrementing the counts.
3061 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3064 *) Add EVP test program.
3067 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3070 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3071 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3072 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3073 These allow a CRL to be built without having to access X509_CRL fields
3074 directly. Modify 'ca' application to use new functions.
3077 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3078 bug workarounds. Rollback attack detection is a security feature.
3079 The problem will only arise on OpenSSL servers when TLSv1 is not
3080 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3081 Software authors not wanting to support TLSv1 will have special reasons
3082 for their choice and can explicitly enable this option.
3083 [Bodo Moeller, Lutz Jaenicke]
3085 *) Rationalise EVP so it can be extended: don't include a union of
3086 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3087 (similar to those existing for EVP_CIPHER_CTX).
3092 EVP_MD_CTX_init(&md); /* new function call */
3093 EVP_DigestInit(&md, EVP_sha1());
3094 EVP_DigestUpdate(&md, in, len);
3095 EVP_DigestFinal(&md, out, NULL);
3096 EVP_MD_CTX_cleanup(&md); /* new function call */
3100 *) Make DES key schedule conform to the usual scheme, as well as
3101 correcting its structure. This means that calls to DES functions
3102 now have to pass a pointer to a des_key_schedule instead of a
3103 plain des_key_schedule (which was actually always a pointer
3106 des_key_schedule ks;
3108 des_set_key_checked(..., &ks);
3109 des_ncbc_encrypt(..., &ks, ...);
3111 (Note that a later change renames 'des_...' into 'DES_...'.)
3114 *) Initial reduction of linker bloat: the use of some functions, such as
3115 PEM causes large amounts of unused functions to be linked in due to
3116 poor organisation. For example pem_all.c contains every PEM function
3117 which has a knock on effect of linking in large amounts of (unused)
3118 ASN1 code. Grouping together similar functions and splitting unrelated
3119 functions prevents this.
3122 *) Cleanup of EVP macros.
3125 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3126 correct _ecb suffix.
3129 *) Add initial OCSP responder support to ocsp application. The
3130 revocation information is handled using the text based index
3131 use by the ca application. The responder can either handle
3132 requests generated internally, supplied in files (for example
3133 via a CGI script) or using an internal minimal server.
3136 *) Add configuration choices to get zlib compression for TLS.
3139 *) Changes to Kerberos SSL for RFC 2712 compliance:
3140 1. Implemented real KerberosWrapper, instead of just using
3141 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3142 2. Implemented optional authenticator field of KerberosWrapper.
3144 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3145 and authenticator structs; see crypto/krb5/.
3147 Generalized Kerberos calls to support multiple Kerberos libraries.
3148 [Vern Staats <staatsvr@asc.hpc.mil>,
3149 Jeffrey Altman <jaltman@columbia.edu>
3150 via Richard Levitte]
3152 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3153 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3154 values for each of the key sizes rather than having just
3155 parameters (and 'speed' generating keys each time).
3158 *) Speed up EVP routines.
3161 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3162 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3163 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3164 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3166 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3167 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3168 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3171 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3173 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3176 *) Added the OS2-EMX target.
3177 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3179 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3180 to support NCONF routines in extension code. New function CONF_set_nconf()
3181 to allow functions which take an NCONF to also handle the old LHASH
3182 structure: this means that the old CONF compatible routines can be
3183 retained (in particular wrt extensions) without having to duplicate the
3184 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3187 *) Enhance the general user interface with mechanisms for inner control
3188 and with possibilities to have yes/no kind of prompts.
3191 *) Change all calls to low level digest routines in the library and
3192 applications to use EVP. Add missing calls to HMAC_cleanup() and
3193 don't assume HMAC_CTX can be copied using memcpy().
3194 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3196 *) Add the possibility to control engines through control names but with
3197 arbitrary arguments instead of just a string.
3198 Change the key loaders to take a UI_METHOD instead of a callback
3199 function pointer. NOTE: this breaks binary compatibility with earlier
3200 versions of OpenSSL [engine].
3201 Adapt the nCipher code for these new conditions and add a card insertion
3205 *) Enhance the general user interface with mechanisms to better support
3206 dialog box interfaces, application-defined prompts, the possibility
3207 to use defaults (for example default passwords from somewhere else)
3208 and interrupts/cancellations.
3211 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3212 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3215 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3216 tidy up some unnecessarily weird code in 'sk_new()').
3217 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3219 *) Change the key loading routines for ENGINEs to use the same kind
3220 callback (pem_password_cb) as all other routines that need this
3224 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3225 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3226 than this minimum value is recommended.
3229 *) New random seeder for OpenVMS, using the system process statistics
3230 that are easily reachable.
3233 *) Windows apparently can't transparently handle global
3234 variables defined in DLLs. Initialisations such as:
3236 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3238 wont compile. This is used by the any applications that need to
3239 declare their own ASN1 modules. This was fixed by adding the option
3240 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3241 needed for static libraries under Win32.
3244 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3245 setting of purpose and trust fields. New X509_STORE trust and
3246 purpose functions and tidy up setting in other SSL functions.
3249 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3250 structure. These are inherited by X509_STORE_CTX when it is
3251 initialised. This allows various defaults to be set in the
3252 X509_STORE structure (such as flags for CRL checking and custom
3253 purpose or trust settings) for functions which only use X509_STORE_CTX
3254 internally such as S/MIME.
3256 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3257 trust settings if they are not set in X509_STORE. This allows X509_STORE
3258 purposes and trust (in S/MIME for example) to override any set by default.
3260 Add command line options for CRL checking to smime, s_client and s_server
3264 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3265 are set then the CRL is looked up in the X509_STORE structure and
3266 its validity and signature checked, then if the certificate is found
3267 in the CRL the verify fails with a revoked error.
3269 Various new CRL related callbacks added to X509_STORE_CTX structure.
3271 Command line options added to 'verify' application to support this.
3273 This needs some additional work, such as being able to handle multiple
3274 CRLs with different times, extension based lookup (rather than just
3275 by subject name) and ultimately more complete V2 CRL extension
3279 *) Add a general user interface API (crypto/ui/). This is designed
3280 to replace things like des_read_password and friends (backward
3281 compatibility functions using this new API are provided).
3282 The purpose is to remove prompting functions from the DES code
3283 section as well as provide for prompting through dialog boxes in
3284 a window system and the like.
3287 *) Add "ex_data" support to ENGINE so implementations can add state at a
3288 per-structure level rather than having to store it globally.
3291 *) Make it possible for ENGINE structures to be copied when retrieved by
3292 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3293 This causes the "original" ENGINE structure to act like a template,
3294 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3295 operational state can be localised to each ENGINE structure, despite the
3296 fact they all share the same "methods". New ENGINE structures returned in
3297 this case have no functional references and the return value is the single
3298 structural reference. This matches the single structural reference returned
3299 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3303 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3304 needs to match any other type at all we need to manually clear the
3308 *) Changes to the "openssl engine" utility to include;
3309 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3310 about an ENGINE's available control commands.
3311 - executing control commands from command line arguments using the
3312 '-pre' and '-post' switches. '-post' is only used if '-t' is
3313 specified and the ENGINE is successfully initialised. The syntax for
3314 the individual commands are colon-separated, for example;
3315 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3318 *) New dynamic control command support for ENGINEs. ENGINEs can now
3319 declare their own commands (numbers), names (strings), descriptions,
3320 and input types for run-time discovery by calling applications. A
3321 subset of these commands are implicitly classed as "executable"
3322 depending on their input type, and only these can be invoked through
3323 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3324 can be based on user input, config files, etc). The distinction is
3325 that "executable" commands cannot return anything other than a boolean
3326 result and can only support numeric or string input, whereas some
3327 discoverable commands may only be for direct use through
3328 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3329 pointers, or other custom uses. The "executable" commands are to
3330 support parameterisations of ENGINE behaviour that can be
3331 unambiguously defined by ENGINEs and used consistently across any
3332 OpenSSL-based application. Commands have been added to all the
3333 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3334 control over shared-library paths without source code alterations.
3337 *) Changed all ENGINE implementations to dynamically allocate their
3338 ENGINEs rather than declaring them statically. Apart from this being
3339 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3340 this also allows the implementations to compile without using the
3341 internal engine_int.h header.
3344 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3345 'const' value. Any code that should be able to modify a RAND_METHOD
3346 should already have non-const pointers to it (ie. they should only
3347 modify their own ones).
3350 *) Made a variety of little tweaks to the ENGINE code.
3351 - "atalla" and "ubsec" string definitions were moved from header files
3352 to C code. "nuron" string definitions were placed in variables
3353 rather than hard-coded - allowing parameterisation of these values
3354 later on via ctrl() commands.
3355 - Removed unused "#if 0"'d code.
3356 - Fixed engine list iteration code so it uses ENGINE_free() to release
3357 structural references.
3358 - Constified the RAND_METHOD element of ENGINE structures.
3359 - Constified various get/set functions as appropriate and added
3360 missing functions (including a catch-all ENGINE_cpy that duplicates
3361 all ENGINE values onto a new ENGINE except reference counts/state).
3362 - Removed NULL parameter checks in get/set functions. Setting a method
3363 or function to NULL is a way of cancelling out a previously set
3364 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3365 and doesn't justify the extra error symbols and code.
3366 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3367 flags from engine_int.h to engine.h.
3368 - Changed prototypes for ENGINE handler functions (init(), finish(),
3369 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3372 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3373 to the algorithm using long division. The binary algorithm can be
3374 used only if the modulus is odd. On 32-bit systems, it is faster
3375 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3376 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3377 up to 450 bits. In 64-bit environments, the binary algorithm
3378 appears to be advantageous for much longer moduli; here we use it
3379 for moduli up to 2048 bits.
3382 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3383 could not support the combine flag in choice fields.
3386 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3387 extensions from a certificate request to the certificate.
3390 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3391 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3392 file: this allows the display of the certificate about to be
3393 signed to be customised, to allow certain fields to be included
3394 or excluded and extension details. The old system didn't display
3395 multicharacter strings properly, omitted fields not in the policy
3396 and couldn't display additional details such as extensions.
3399 *) Function EC_POINTs_mul for multiple scalar multiplication
3400 of an arbitrary number of elliptic curve points
3401 \sum scalars[i]*points[i],
3402 optionally including the generator defined for the EC_GROUP:
3403 scalar*generator + \sum scalars[i]*points[i].
3405 EC_POINT_mul is a simple wrapper function for the typical case
3406 that the point list has just one item (besides the optional
3410 *) First EC_METHODs for curves over GF(p):
3412 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3413 operations and provides various method functions that can also
3414 operate with faster implementations of modular arithmetic.
3416 EC_GFp_mont_method() reuses most functions that are part of
3417 EC_GFp_simple_method, but uses Montgomery arithmetic.
3419 [Bodo Moeller; point addition and point doubling
3420 implementation directly derived from source code provided by
3421 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3423 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3424 crypto/ec/ec_lib.c):
3426 Curves are EC_GROUP objects (with an optional group generator)
3427 based on EC_METHODs that are built into the library.
3429 Points are EC_POINT objects based on EC_GROUP objects.
3431 Most of the framework would be able to handle curves over arbitrary
3432 finite fields, but as there are no obvious types for fields other
3433 than GF(p), some functions are limited to that for now.
3436 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3437 that the file contains a complete HTTP response.
3440 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3441 change the def and num file printf format specifier from "%-40sXXX"
3442 to "%-39s XXX". The latter will always guarantee a space after the
3443 field while the former will cause them to run together if the field
3444 is 40 of more characters long.
3447 *) Constify the cipher and digest 'method' functions and structures
3448 and modify related functions to take constant EVP_MD and EVP_CIPHER
3452 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3453 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3456 *) Modify EVP_Digest*() routines so they now return values. Although the
3457 internal software routines can never fail additional hardware versions
3461 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3463 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3464 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3467 ERR_R_NESTED_ASN1_ERROR
3469 ERR_R_MISSING_ASN1_EOS
3470 were 4 .. 9, conflicting with
3471 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3473 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3474 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3476 Add new error code 'ERR_R_INTERNAL_ERROR'.
3479 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3483 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3484 sets the subject name for a new request or supersedes the
3485 subject name in a given request. Formats that can be parsed are
3486 'CN=Some Name, OU=myOU, C=IT'
3488 'CN=Some Name/OU=myOU/C=IT'.
3490 Add options '-batch' and '-verbose' to 'openssl req'.
3491 [Massimiliano Pala <madwolf@hackmasters.net>]
3493 *) Introduce the possibility to access global variables through
3494 functions on platform were that's the best way to handle exporting
3495 global variables in shared libraries. To enable this functionality,
3496 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3497 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3498 is normally done by Configure or something similar).
3500 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3501 in the source file (foo.c) like this:
3503 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3504 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3506 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3507 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3509 OPENSSL_DECLARE_GLOBAL(int,foo);
3510 #define foo OPENSSL_GLOBAL_REF(foo)
3511 OPENSSL_DECLARE_GLOBAL(double,bar);
3512 #define bar OPENSSL_GLOBAL_REF(bar)
3514 The #defines are very important, and therefore so is including the
3515 header file everywhere where the defined globals are used.
3517 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3518 of ASN.1 items, but that structure is a bit different.
3520 The largest change is in util/mkdef.pl which has been enhanced with
3521 better and easier to understand logic to choose which symbols should
3522 go into the Windows .def files as well as a number of fixes and code
3523 cleanup (among others, algorithm keywords are now sorted
3524 lexicographically to avoid constant rewrites).
3527 *) In BN_div() keep a copy of the sign of 'num' before writing the
3528 result to 'rm' because if rm==num the value will be overwritten
3529 and produce the wrong result if 'num' is negative: this caused
3530 problems with BN_mod() and BN_nnmod().
3533 *) Function OCSP_request_verify(). This checks the signature on an
3534 OCSP request and verifies the signer certificate. The signer
3535 certificate is just checked for a generic purpose and OCSP request
3539 *) Add OCSP_check_validity() function to check the validity of OCSP
3540 responses. OCSP responses are prepared in real time and may only
3541 be a few seconds old. Simply checking that the current time lies
3542 between thisUpdate and nextUpdate max reject otherwise valid responses
3543 caused by either OCSP responder or client clock inaccuracy. Instead
3544 we allow thisUpdate and nextUpdate to fall within a certain period of
3545 the current time. The age of the response can also optionally be
3546 checked. Two new options -validity_period and -status_age added to
3550 *) If signature or public key algorithm is unrecognized print out its
3551 OID rather that just UNKNOWN.
3554 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3555 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3556 ID to be generated from the issuer certificate alone which can then be
3557 passed to OCSP_id_issuer_cmp().
3560 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3561 ASN1 modules to export functions returning ASN1_ITEM pointers
3562 instead of the ASN1_ITEM structures themselves. This adds several
3563 new macros which allow the underlying ASN1 function/structure to
3564 be accessed transparently. As a result code should not use ASN1_ITEM
3565 references directly (such as &X509_it) but instead use the relevant
3566 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3567 use of the new ASN1 code on platforms where exporting structures
3568 is problematical (for example in shared libraries) but exporting
3569 functions returning pointers to structures is not.
3572 *) Add support for overriding the generation of SSL/TLS session IDs.
3573 These callbacks can be registered either in an SSL_CTX or per SSL.
3574 The purpose of this is to allow applications to control, if they wish,
3575 the arbitrary values chosen for use as session IDs, particularly as it
3576 can be useful for session caching in multiple-server environments. A
3577 command-line switch for testing this (and any client code that wishes
3578 to use such a feature) has been added to "s_server".
3579 [Geoff Thorpe, Lutz Jaenicke]
3581 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3582 of the form '#if defined(...) || defined(...) || ...' and
3583 '#if !defined(...) && !defined(...) && ...'. This also avoids
3584 the growing number of special cases it was previously handling.
3587 *) Make all configuration macros available for application by making
3588 sure they are available in opensslconf.h, by giving them names starting
3589 with "OPENSSL_" to avoid conflicts with other packages and by making
3590 sure e_os2.h will cover all platform-specific cases together with
3592 Additionally, it is now possible to define configuration/platform-
3593 specific names (called "system identities"). In the C code, these
3594 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3595 macro with the name beginning with "OPENSSL_SYS_", which is determined
3596 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3600 *) New option -set_serial to 'req' and 'x509' this allows the serial
3601 number to use to be specified on the command line. Previously self
3602 signed certificates were hard coded with serial number 0 and the
3603 CA options of 'x509' had to use a serial number in a file which was
3607 *) New options to 'ca' utility to support V2 CRL entry extensions.
3608 Currently CRL reason, invalidity date and hold instruction are
3609 supported. Add new CRL extensions to V3 code and some new objects.
3612 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3613 disable standard block padding (aka PKCS#5 padding) in the EVP
3614 API, which was previously mandatory. This means that the data is
3615 not padded in any way and so the total length much be a multiple
3616 of the block size, otherwise an error occurs.
3619 *) Initial (incomplete) OCSP SSL support.
3622 *) New function OCSP_parse_url(). This splits up a URL into its host,
3623 port and path components: primarily to parse OCSP URLs. New -url
3624 option to ocsp utility.
3627 *) New nonce behavior. The return value of OCSP_check_nonce() now
3628 reflects the various checks performed. Applications can decide
3629 whether to tolerate certain situations such as an absent nonce
3630 in a response when one was present in a request: the ocsp application
3631 just prints out a warning. New function OCSP_add1_basic_nonce()
3632 this is to allow responders to include a nonce in a response even if
3633 the request is nonce-less.
3636 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3637 skipped when using openssl x509 multiple times on a single input file,
3638 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3641 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3642 set string type: to handle setting ASN1_TIME structures. Fix ca
3643 utility to correctly initialize revocation date of CRLs.
3646 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3647 the clients preferred ciphersuites and rather use its own preferences.
3648 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3649 Internet Explorer by ensuring unchanged hash method during stepup.
3650 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3653 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3654 to aes and add a new 'exist' option to print out symbols that don't
3658 *) Additional options to ocsp utility to allow flags to be set and
3659 additional certificates supplied.
3662 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3663 OCSP client a number of certificate to only verify the response
3667 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3668 handle the new API. Currently only ECB, CBC modes supported. Add new
3671 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3672 Encryption Standard (AES) Ciphersuites for Transport Layer
3673 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3674 not enabled by default and were not part of the "ALL" ciphersuite
3675 alias because they were not yet official; they could be
3676 explicitly requested by specifying the "AESdraft" ciphersuite
3677 group alias. In the final release of OpenSSL 0.9.7, the group
3678 alias is called "AES" and is part of "ALL".)
3679 [Ben Laurie, Steve Henson, Bodo Moeller]
3681 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3682 request to response.
3685 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3686 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3687 extract information from a certificate request. OCSP_response_create()
3688 creates a response and optionally adds a basic response structure.
3689 OCSP_basic_add1_status() adds a complete single response to a basic
3690 response and returns the OCSP_SINGLERESP structure just added (to allow
3691 extensions to be included for example). OCSP_basic_add1_cert() adds a
3692 certificate to a basic response and OCSP_basic_sign() signs a basic
3693 response with various flags. New helper functions ASN1_TIME_check()
3694 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3695 (converts ASN1_TIME to GeneralizedTime).
3698 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3699 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3700 structure from a certificate. X509_pubkey_digest() digests the public_key
3701 contents: this is used in various key identifiers.
3704 *) Make sk_sort() tolerate a NULL argument.
3705 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3707 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3708 passed by the function are trusted implicitly. If any of them signed the
3709 response then it is assumed to be valid and is not verified.
3712 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3713 to data. This was previously part of the PKCS7 ASN1 code. This
3714 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3715 [Steve Henson, reported by Kenneth R. Robinette
3716 <support@securenetterm.com>]
3718 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3719 routines: without these tracing memory leaks is very painful.
3720 Fix leaks in PKCS12 and PKCS7 routines.
3723 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3724 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3725 effectively meant GeneralizedTime would never be used. Now it
3726 is initialised to -1 but X509_time_adj() now has to check the value
3727 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3728 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3729 [Steve Henson, reported by Kenneth R. Robinette
3730 <support@securenetterm.com>]
3732 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3733 result in a zero length in the ASN1_INTEGER structure which was
3734 not consistent with the structure when d2i_ASN1_INTEGER() was used
3735 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3736 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3737 where it did not print out a minus for negative ASN1_INTEGER.
3740 *) Add summary printout to ocsp utility. The various functions which
3741 convert status values to strings have been renamed to:
3742 OCSP_response_status_str(), OCSP_cert_status_str() and
3743 OCSP_crl_reason_str() and are no longer static. New options
3744 to verify nonce values and to disable verification. OCSP response
3745 printout format cleaned up.
3748 *) Add additional OCSP certificate checks. These are those specified
3749 in RFC2560. This consists of two separate checks: the CA of the
3750 certificate being checked must either be the OCSP signer certificate
3751 or the issuer of the OCSP signer certificate. In the latter case the
3752 OCSP signer certificate must contain the OCSP signing extended key
3753 usage. This check is performed by attempting to match the OCSP
3754 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3755 in the OCSP_CERTID structures of the response.
3758 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3759 and related routines. This uses the standard OpenSSL certificate
3760 verify routines to perform initial checks (just CA validity) and
3761 to obtain the certificate chain. Then additional checks will be
3762 performed on the chain. Currently the root CA is checked to see
3763 if it is explicitly trusted for OCSP signing. This is used to set
3764 a root CA as a global signing root: that is any certificate that
3765 chains to that CA is an acceptable OCSP signing certificate.
3768 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3769 extensions from a separate configuration file.
3770 As when reading extensions from the main configuration file,
3771 the '-extensions ...' option may be used for specifying the
3773 [Massimiliano Pala <madwolf@comune.modena.it>]
3775 *) New OCSP utility. Allows OCSP requests to be generated or
3776 read. The request can be sent to a responder and the output
3777 parsed, outputed or printed in text form. Not complete yet:
3778 still needs to check the OCSP response validity.
3781 *) New subcommands for 'openssl ca':
3782 'openssl ca -status <serial>' prints the status of the cert with
3783 the given serial number (according to the index file).
3784 'openssl ca -updatedb' updates the expiry status of certificates
3786 [Massimiliano Pala <madwolf@comune.modena.it>]
3788 *) New '-newreq-nodes' command option to CA.pl. This is like
3789 '-newreq', but calls 'openssl req' with the '-nodes' option
3790 so that the resulting key is not encrypted.
3791 [Damien Miller <djm@mindrot.org>]
3793 *) New configuration for the GNU Hurd.
3794 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3796 *) Initial code to implement OCSP basic response verify. This
3797 is currently incomplete. Currently just finds the signer's
3798 certificate and verifies the signature on the response.
3801 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3802 value of OPENSSLDIR. This is available via the new '-d' option
3803 to 'openssl version', and is also included in 'openssl version -a'.
3806 *) Allowing defining memory allocation callbacks that will be given
3807 file name and line number information in additional arguments
3808 (a const char* and an int). The basic functionality remains, as
3809 well as the original possibility to just replace malloc(),
3810 realloc() and free() by functions that do not know about these
3811 additional arguments. To register and find out the current
3812 settings for extended allocation functions, the following
3813 functions are provided:
3815 CRYPTO_set_mem_ex_functions
3816 CRYPTO_set_locked_mem_ex_functions
3817 CRYPTO_get_mem_ex_functions
3818 CRYPTO_get_locked_mem_ex_functions
3820 These work the same way as CRYPTO_set_mem_functions and friends.
3821 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3822 extended allocation function is enabled.
3823 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3824 a conventional allocation function is enabled.
3825 [Richard Levitte, Bodo Moeller]
3827 *) Finish off removing the remaining LHASH function pointer casts.
3828 There should no longer be any prototype-casting required when using
3829 the LHASH abstraction, and any casts that remain are "bugs". See
3830 the callback types and macros at the head of lhash.h for details
3831 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3834 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3835 If /dev/[u]random devices are not available or do not return enough
3836 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3838 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3839 /etc/entropy will be queried once each in this sequence, quering stops
3840 when enough entropy was collected without querying more sockets.
3843 *) Change the Unix RAND_poll() variant to be able to poll several
3844 random devices, as specified by DEVRANDOM, until a sufficient amount
3845 of data has been collected. We spend at most 10 ms on each file
3846 (select timeout) and read in non-blocking mode. DEVRANDOM now
3847 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3848 (previously it was just the string "/dev/urandom"), so on typical
3849 platforms the 10 ms delay will never occur.
3850 Also separate out the Unix variant to its own file, rand_unix.c.
3851 For VMS, there's a currently-empty rand_vms.c.
3854 *) Move OCSP client related routines to ocsp_cl.c. These
3855 provide utility functions which an application needing
3856 to issue a request to an OCSP responder and analyse the
3857 response will typically need: as opposed to those which an
3858 OCSP responder itself would need which will be added later.
3860 OCSP_request_sign() signs an OCSP request with an API similar
3861 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3862 response. OCSP_response_get1_basic() extracts basic response
3863 from response. OCSP_resp_find_status(): finds and extracts status
3864 information from an OCSP_CERTID structure (which will be created
3865 when the request structure is built). These are built from lower
3866 level functions which work on OCSP_SINGLERESP structures but
3867 wont normally be used unless the application wishes to examine
3868 extensions in the OCSP response for example.
3870 Replace nonce routines with a pair of functions.
3871 OCSP_request_add1_nonce() adds a nonce value and optionally
3872 generates a random value. OCSP_check_nonce() checks the
3873 validity of the nonce in an OCSP response.
3876 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3877 This doesn't copy the supplied OCSP_CERTID and avoids the
3878 need to free up the newly created id. Change return type
3879 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3880 This can then be used to add extensions to the request.
3881 Deleted OCSP_request_new(), since most of its functionality
3882 is now in OCSP_REQUEST_new() (and the case insensitive name
3883 clash) apart from the ability to set the request name which
3884 will be added elsewhere.
3887 *) Update OCSP API. Remove obsolete extensions argument from
3888 various functions. Extensions are now handled using the new
3889 OCSP extension code. New simple OCSP HTTP function which
3890 can be used to send requests and parse the response.
3893 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3894 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3895 uses the special reorder version of SET OF to sort the attributes
3896 and reorder them to match the encoded order. This resolves a long
3897 standing problem: a verify on a PKCS7 structure just after signing
3898 it used to fail because the attribute order did not match the
3899 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3900 it uses the received order. This is necessary to tolerate some broken
3901 software that does not order SET OF. This is handled by encoding
3902 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3903 to produce the required SET OF.
3906 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3907 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3908 files to get correct declarations of the ASN.1 item variables.
3911 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3912 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3913 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3914 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3915 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3916 ASN1_ITEM and no wrapper functions.
3919 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3920 replace the old function pointer based I/O routines. Change most of
3921 the *_d2i_bio() and *_d2i_fp() functions to use these.
3924 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3925 lines, recognice more "algorithms" that can be deselected, and make
3926 it complain about algorithm deselection that isn't recognised.
3929 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3930 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3931 to use new functions. Add NO_ASN1_OLD which can be set to remove
3932 some old style ASN1 functions: this can be used to determine if old
3933 code will still work when these eventually go away.
3936 *) New extension functions for OCSP structures, these follow the
3937 same conventions as certificates and CRLs.
3940 *) New function X509V3_add1_i2d(). This automatically encodes and
3941 adds an extension. Its behaviour can be customised with various
3942 flags to append, replace or delete. Various wrappers added for
3943 certifcates and CRLs.
3946 *) Fix to avoid calling the underlying ASN1 print routine when
3947 an extension cannot be parsed. Correct a typo in the
3948 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3951 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3952 entries for variables.
3955 *) Add functionality to apps/openssl.c for detecting locking
3956 problems: As the program is single-threaded, all we have
3957 to do is register a locking callback using an array for
3958 storing which locks are currently held by the program.
3961 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3962 SSL_get_ex_data_X509_STORE_idx(), which is used in
3963 ssl_verify_cert_chain() and thus can be called at any time
3964 during TLS/SSL handshakes so that thread-safety is essential.
3965 Unfortunately, the ex_data design is not at all suited
3966 for multi-threaded use, so it probably should be abolished.
3969 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3970 [Broadcom, tweaked and integrated by Geoff Thorpe]
3972 *) Move common extension printing code to new function
3973 X509V3_print_extensions(). Reorganise OCSP print routines and
3974 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3977 *) New function X509_signature_print() to remove duplication in some
3981 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3982 set (this was treated exactly the same as SET OF previously). This
3983 is used to reorder the STACK representing the structure to match the
3984 encoding. This will be used to get round a problem where a PKCS7
3985 structure which was signed could not be verified because the STACK
3986 order did not reflect the encoded order.
3989 *) Reimplement the OCSP ASN1 module using the new code.
3992 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3993 for its ASN1 operations. The old style function pointers still exist
3994 for now but they will eventually go away.
3997 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3998 completely replaces the old ASN1 functionality with a table driven
3999 encoder and decoder which interprets an ASN1_ITEM structure describing
4000 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4001 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4002 has also been converted to the new form.
4005 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4006 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4007 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4008 for negative moduli.
4011 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4012 of not touching the result's sign bit.
4015 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4019 *) Changed the LHASH code to use prototypes for callbacks, and created
4020 macros to declare and implement thin (optionally static) functions
4021 that provide type-safety and avoid function pointer casting for the
4022 type-specific callbacks.
4025 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4027 [Veers Staats <staatsvr@asc.hpc.mil>,
4028 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4030 *) Reformat the FAQ so the different questions and answers can be divided
4031 in sections depending on the subject.
4034 *) Have the zlib compression code load ZLIB.DLL dynamically under
4038 *) New function BN_mod_sqrt for computing square roots modulo a prime
4039 (using the probabilistic Tonelli-Shanks algorithm unless
4040 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4041 be handled deterministically).
4042 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4044 *) Make BN_mod_inverse faster by explicitly handling small quotients
4045 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4046 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4049 *) New function BN_kronecker.
4052 *) Fix BN_gcd so that it works on negative inputs; the result is
4053 positive unless both parameters are zero.
4054 Previously something reasonably close to an infinite loop was
4055 possible because numbers could be growing instead of shrinking
4056 in the implementation of Euclid's algorithm.
4059 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4060 sign of the number in question.
4062 Fix BN_is_word(a,w) to work correctly for w == 0.
4064 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4065 because its test if the absolute value of 'a' equals 'w'.
4066 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4067 it exists mostly for use in the implementations of BN_is_zero(),
4068 BN_is_one(), and BN_is_word().
4071 *) New function BN_swap.
4074 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4075 the exponentiation functions are more likely to produce reasonable
4076 results on negative inputs.
4079 *) Change BN_mod_mul so that the result is always non-negative.
4080 Previously, it could be negative if one of the factors was negative;
4081 I don't think anyone really wanted that behaviour.
4084 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4085 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4086 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4087 and add new functions:
4096 BN_mod_lshift1_quick
4100 These functions always generate non-negative results.
4102 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4103 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4105 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4106 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4107 be reduced modulo m.
4108 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4111 The following entry accidentily appeared in the CHANGES file
4112 distributed with OpenSSL 0.9.7. The modifications described in
4113 it do *not* apply to OpenSSL 0.9.7.
4115 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4116 was actually never needed) and in BN_mul(). The removal in BN_mul()
4117 required a small change in bn_mul_part_recursive() and the addition
4118 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4119 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4120 bn_sub_words() and bn_add_words() except they take arrays with
4125 *) In 'openssl passwd', verify passwords read from the terminal
4126 unless the '-salt' option is used (which usually means that
4127 verification would just waste user's time since the resulting
4128 hash is going to be compared with some given password hash)
4129 or the new '-noverify' option is used.
4131 This is an incompatible change, but it does not affect
4132 non-interactive use of 'openssl passwd' (passwords on the command
4133 line, '-stdin' option, '-in ...' option) and thus should not
4137 *) Remove all references to RSAref, since there's no more need for it.
4140 *) Make DSO load along a path given through an environment variable
4141 (SHLIB_PATH) with shl_load().
4144 *) Constify the ENGINE code as a result of BIGNUM constification.
4145 Also constify the RSA code and most things related to it. In a
4146 few places, most notable in the depth of the ASN.1 code, ugly
4147 casts back to non-const were required (to be solved at a later
4151 *) Make it so the openssl application has all engines loaded by default.
4154 *) Constify the BIGNUM routines a little more.
4157 *) Add the following functions:
4159 ENGINE_load_cswift()
4161 ENGINE_load_atalla()
4163 ENGINE_load_builtin_engines()
4165 That way, an application can itself choose if external engines that
4166 are built-in in OpenSSL shall ever be used or not. The benefit is
4167 that applications won't have to be linked with libdl or other dso
4168 libraries unless it's really needed.
4170 Changed 'openssl engine' to load all engines on demand.
4171 Changed the engine header files to avoid the duplication of some
4172 declarations (they differed!).
4175 *) 'openssl engine' can now list capabilities.
4178 *) Better error reporting in 'openssl engine'.
4181 *) Never call load_dh_param(NULL) in s_server.
4184 *) Add engine application. It can currently list engines by name and
4185 identity, and test if they are actually available.
4188 *) Improve RPM specification file by forcing symbolic linking and making
4189 sure the installed documentation is also owned by root.root.
4190 [Damien Miller <djm@mindrot.org>]
4192 *) Give the OpenSSL applications more possibilities to make use of
4193 keys (public as well as private) handled by engines.
4196 *) Add OCSP code that comes from CertCo.
4199 *) Add VMS support for the Rijndael code.
4202 *) Added untested support for Nuron crypto accelerator.
4205 *) Add support for external cryptographic devices. This code was
4206 previously distributed separately as the "engine" branch.
4207 [Geoff Thorpe, Richard Levitte]
4209 *) Rework the filename-translation in the DSO code. It is now possible to
4210 have far greater control over how a "name" is turned into a filename
4211 depending on the operating environment and any oddities about the
4212 different shared library filenames on each system.
4215 *) Support threads on FreeBSD-elf in Configure.
4218 *) Fix for SHA1 assembly problem with MASM: it produces
4219 warnings about corrupt line number information when assembling
4220 with debugging information. This is caused by the overlapping
4222 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4225 NCONF_get_number() has no error checking at all. As a replacement,
4226 NCONF_get_number_e() is defined (_e for "error checking") and is
4227 promoted strongly. The old NCONF_get_number is kept around for
4228 binary backward compatibility.
4229 Make it possible for methods to load from something other than a BIO,
4230 by providing a function pointer that is given a name instead of a BIO.
4231 For example, this could be used to load configuration data from an
4235 *) Fix for non blocking accept BIOs. Added new I/O special reason
4236 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4237 with non blocking I/O was not possible because no retry code was
4238 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4242 *) Added the beginnings of Rijndael support.
4245 *) Fix for bug in DirectoryString mask setting. Add support for
4246 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4247 to allow certificate printing to more controllable, additional
4248 'certopt' option to 'x509' to allow new printing options to be
4252 *) Clean old EAY MD5 hack from e_os.h.
4255 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4257 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4258 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4259 [Joe Orton, Steve Henson]
4261 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4263 *) Fix additional bug revealed by the NISCC test suite:
4265 Stop bug triggering large recursion when presented with
4266 certain ASN.1 tags (CVE-2003-0851)
4269 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4271 *) Fix various bugs revealed by running the NISCC test suite:
4273 Stop out of bounds reads in the ASN1 code when presented with
4274 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4276 If verify callback ignores invalid public key errors don't try to check
4277 certificate signature with the NULL public key.
4281 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4282 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4286 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4287 extra data after the compression methods not only for TLS 1.0
4288 but also for SSL 3.0 (as required by the specification).
4289 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4291 *) Change X509_certificate_type() to mark the key as exported/exportable
4292 when it's 512 *bits* long, not 512 bytes.
4295 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4297 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4298 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4299 a protocol version number mismatch like a decryption error
4300 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4303 *) Turn on RSA blinding by default in the default implementation
4304 to avoid a timing attack. Applications that don't want it can call
4305 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4306 They would be ill-advised to do so in most cases.
4307 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4309 *) Change RSA blinding code so that it works when the PRNG is not
4310 seeded (in this case, the secret RSA exponent is abused as
4311 an unpredictable seed -- if it is not unpredictable, there
4312 is no point in blinding anyway). Make RSA blinding thread-safe
4313 by remembering the creator's thread ID in rsa->blinding and
4314 having all other threads use local one-time blinding factors
4315 (this requires more computation than sharing rsa->blinding, but
4316 avoids excessive locking; and if an RSA object is not shared
4317 between threads, blinding will still be very fast).
4320 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4322 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4323 via timing by performing a MAC computation even if incorrrect
4324 block cipher padding has been found. This is a countermeasure
4325 against active attacks where the attacker has to distinguish
4326 between bad padding and a MAC verification error. (CVE-2003-0078)
4328 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4329 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4330 Martin Vuagnoux (EPFL, Ilion)]
4332 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4334 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4335 memory from it's contents. This is done with a counter that will
4336 place alternating values in each byte. This can be used to solve
4337 two issues: 1) the removal of calls to memset() by highly optimizing
4338 compilers, and 2) cleansing with other values than 0, since those can
4339 be read through on certain media, for example a swap space on disk.
4342 *) Bugfix: client side session caching did not work with external caching,
4343 because the session->cipher setting was not restored when reloading
4344 from the external cache. This problem was masked, when
4345 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4346 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4349 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4350 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4351 [Zeev Lieber <zeev-l@yahoo.com>]
4353 *) Undo an undocumented change introduced in 0.9.6e which caused
4354 repeated calls to OpenSSL_add_all_ciphers() and
4355 OpenSSL_add_all_digests() to be ignored, even after calling
4359 *) Change the default configuration reader to deal with last line not
4360 being properly terminated.
4363 *) Change X509_NAME_cmp() so it applies the special rules on handling
4364 DN values that are of type PrintableString, as well as RDNs of type
4365 emailAddress where the value has the type ia5String.
4366 [stefank@valicert.com via Richard Levitte]
4368 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4369 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4370 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4371 the bitwise-OR of the two for use by the majority of applications
4372 wanting this behaviour, and update the docs. The documented
4373 behaviour and actual behaviour were inconsistent and had been
4374 changing anyway, so this is more a bug-fix than a behavioural
4376 [Geoff Thorpe, diagnosed by Nadav Har'El]
4378 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4379 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4382 *) Fix initialization code race conditions in
4383 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4384 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4385 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4386 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4387 ssl2_get_cipher_by_char(),
4388 ssl3_get_cipher_by_char().
4389 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4391 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4392 the cached sessions are flushed, as the remove_cb() might use ex_data
4393 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4394 (see [openssl.org #212]).
4395 [Geoff Thorpe, Lutz Jaenicke]
4397 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4398 length, instead of the encoding length to d2i_ASN1_OBJECT.
4401 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4403 *) [In 0.9.6g-engine release:]
4404 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4405 [Lynn Gazis <lgazis@rainbow.com>]
4407 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4409 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4410 and get fix the header length calculation.
4411 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4412 Alon Kantor <alonk@checkpoint.com> (and others),
4415 *) Use proper error handling instead of 'assertions' in buffer
4416 overflow checks added in 0.9.6e. This prevents DoS (the
4417 assertions could call abort()).
4418 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4420 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4422 *) Add various sanity checks to asn1_get_length() to reject
4423 the ASN1 length bytes if they exceed sizeof(long), will appear
4424 negative or the content length exceeds the length of the
4426 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4428 *) Fix cipher selection routines: ciphers without encryption had no flags
4429 for the cipher strength set and where therefore not handled correctly
4430 by the selection routines (PR #130).
4433 *) Fix EVP_dsa_sha macro.
4437 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4438 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4439 that was added in OpenSSL 0.9.6d.
4441 As the countermeasure turned out to be incompatible with some
4442 broken SSL implementations, the new option is part of SSL_OP_ALL.
4443 SSL_OP_ALL is usually employed when compatibility with weird SSL
4444 implementations is desired (e.g. '-bugs' option to 's_client' and
4445 's_server'), so the new option is automatically set in many
4449 *) Changes in security patch:
4451 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4452 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4453 Air Force Materiel Command, USAF, under agreement number
4456 *) Add various sanity checks to asn1_get_length() to reject
4457 the ASN1 length bytes if they exceed sizeof(long), will appear
4458 negative or the content length exceeds the length of the
4459 supplied buffer. (CVE-2002-0659)
4460 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4462 *) Assertions for various potential buffer overflows, not known to
4464 [Ben Laurie (CHATS)]
4466 *) Various temporary buffers to hold ASCII versions of integers were
4467 too small for 64 bit platforms. (CVE-2002-0655)
4468 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4470 *) Remote buffer overflow in SSL3 protocol - an attacker could
4471 supply an oversized session ID to a client. (CVE-2002-0656)
4472 [Ben Laurie (CHATS)]
4474 *) Remote buffer overflow in SSL2 protocol - an attacker could
4475 supply an oversized client master key. (CVE-2002-0656)
4476 [Ben Laurie (CHATS)]
4478 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4480 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4481 encoded as NULL) with id-dsa-with-sha1.
4482 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4484 *) Check various X509_...() return values in apps/req.c.
4485 [Nils Larsch <nla@trustcenter.de>]
4487 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4488 an end-of-file condition would erronously be flagged, when the CRLF
4489 was just at the end of a processed block. The bug was discovered when
4490 processing data through a buffering memory BIO handing the data to a
4491 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4492 <ptsekov@syntrex.com> and Nedelcho Stanev.
4495 *) Implement a countermeasure against a vulnerability recently found
4496 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4497 before application data chunks to avoid the use of known IVs
4498 with data potentially chosen by the attacker.
4501 *) Fix length checks in ssl3_get_client_hello().
4504 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4505 to prevent ssl3_read_internal() from incorrectly assuming that
4506 ssl3_read_bytes() found application data while handshake
4507 processing was enabled when in fact s->s3->in_read_app_data was
4508 merely automatically cleared during the initial handshake.
4509 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4511 *) Fix object definitions for Private and Enterprise: they were not
4512 recognized in their shortname (=lowercase) representation. Extend
4513 obj_dat.pl to issue an error when using undefined keywords instead
4514 of silently ignoring the problem (Svenning Sorensen
4515 <sss@sss.dnsalias.net>).
4518 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4519 generators, i.e. generators other than 2 and 5. (Previously, the
4520 code did not properly initialise the 'add' and 'rem' values to
4521 BN_generate_prime().)
4523 In the new general case, we do not insist that 'generator' is
4524 actually a primitive root: This requirement is rather pointless;
4525 a generator of the order-q subgroup is just as good, if not
4529 *) Map new X509 verification errors to alerts. Discovered and submitted by
4530 Tom Wu <tom@arcot.com>.
4533 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4534 returning non-zero before the data has been completely received
4535 when using non-blocking I/O.
4536 [Bodo Moeller; problem pointed out by John Hughes]
4538 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4539 [Ben Laurie, Lutz Jaenicke]
4541 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4542 Yoram Zahavi <YoramZ@gilian.com>).
4545 *) Add information about CygWin 1.3 and on, and preserve proper
4546 configuration for the versions before that.
4547 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4549 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4550 check whether we deal with a copy of a session and do not delete from
4551 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4552 <izhar@checkpoint.com>.
4555 *) Do not store session data into the internal session cache, if it
4556 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4557 flag is set). Proposed by Aslam <aslam@funk.com>.
4560 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4564 *) [In 0.9.6d-engine release:]
4565 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4566 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4568 *) Add the configuration target linux-s390x.
4569 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4571 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4572 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4573 variable as an indication that a ClientHello message has been
4574 received. As the flag value will be lost between multiple
4575 invocations of ssl3_accept when using non-blocking I/O, the
4576 function may not be aware that a handshake has actually taken
4577 place, thus preventing a new session from being added to the
4580 To avoid this problem, we now set s->new_session to 2 instead of
4581 using a local variable.
4582 [Lutz Jaenicke, Bodo Moeller]
4584 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4585 if the SSL_R_LENGTH_MISMATCH error is detected.
4586 [Geoff Thorpe, Bodo Moeller]
4588 *) New 'shared_ldflag' column in Configure platform table.
4591 *) Fix EVP_CIPHER_mode macro.
4592 ["Dan S. Camper" <dan@bti.net>]
4594 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4595 type, we must throw them away by setting rr->length to 0.
4596 [D P Chang <dpc@qualys.com>]
4598 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4600 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4601 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4602 worked incorrectly for those cases where range = 10..._2 and
4603 3*range is two bits longer than range.)
4606 *) Only add signing time to PKCS7 structures if it is not already
4610 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4611 OBJ_ld_ce should be OBJ_id_ce.
4612 Also some ip-pda OIDs in crypto/objects/objects.txt were
4613 incorrect (cf. RFC 3039).
4614 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4616 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4617 returns early because it has nothing to do.
4618 [Andy Schneider <andy.schneider@bjss.co.uk>]
4620 *) [In 0.9.6c-engine release:]
4621 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4622 [Andy Schneider <andy.schneider@bjss.co.uk>]
4624 *) [In 0.9.6c-engine release:]
4625 Add support for Cryptographic Appliance's keyserver technology.
4626 (Use engine 'keyclient')
4627 [Cryptographic Appliances and Geoff Thorpe]
4629 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4630 is called via tools/c89.sh because arguments have to be
4631 rearranged (all '-L' options must appear before the first object
4633 [Richard Shapiro <rshapiro@abinitio.com>]
4635 *) [In 0.9.6c-engine release:]
4636 Add support for Broadcom crypto accelerator cards, backported
4638 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4640 *) [In 0.9.6c-engine release:]
4641 Add support for SureWare crypto accelerator cards from
4642 Baltimore Technologies. (Use engine 'sureware')
4643 [Baltimore Technologies and Mark Cox]
4645 *) [In 0.9.6c-engine release:]
4646 Add support for crypto accelerator cards from Accelerated
4647 Encryption Processing, www.aep.ie. (Use engine 'aep')
4648 [AEP Inc. and Mark Cox]
4650 *) Add a configuration entry for gcc on UnixWare.
4651 [Gary Benson <gbenson@redhat.com>]
4653 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4654 messages are stored in a single piece (fixed-length part and
4655 variable-length part combined) and fix various bugs found on the way.
4658 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4659 instead. BIO_gethostbyname() does not know what timeouts are
4660 appropriate, so entries would stay in cache even when they have
4662 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4664 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4665 faced with a pathologically small ClientHello fragment that does
4666 not contain client_version: Instead of aborting with an error,
4667 simply choose the highest available protocol version (i.e.,
4668 TLS 1.0 unless it is disabled). In practice, ClientHello
4669 messages are never sent like this, but this change gives us
4670 strictly correct behaviour at least for TLS.
4673 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4674 never resets s->method to s->ctx->method when called from within
4675 one of the SSL handshake functions.
4676 [Bodo Moeller; problem pointed out by Niko Baric]
4678 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4679 (sent using the client's version number) if client_version is
4680 smaller than the protocol version in use. Also change
4681 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4682 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4683 the client will at least see that alert.
4686 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4690 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4691 client receives HelloRequest while in a handshake.
4692 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4694 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4695 should end in 'break', not 'goto end' which circuments various
4696 cleanups done in state SSL_ST_OK. But session related stuff
4697 must be disabled for SSL_ST_OK in the case that we just sent a
4700 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4701 before just sending a HelloRequest.
4702 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4704 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4705 reveal whether illegal block cipher padding was found or a MAC
4706 verification error occured. (Neither SSLerr() codes nor alerts
4707 are directly visible to potential attackers, but the information
4708 may leak via logfiles.)
4710 Similar changes are not required for the SSL 2.0 implementation
4711 because the number of padding bytes is sent in clear for SSL 2.0,
4712 and the extra bytes are just ignored. However ssl/s2_pkt.c
4713 failed to verify that the purported number of padding bytes is in
4717 *) Add OpenUNIX-8 support including shared libraries
4718 (Boyd Lynn Gerber <gerberb@zenez.com>).
4721 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4722 'wristwatch attack' using huge encoding parameters (cf.
4723 James H. Manger's CRYPTO 2001 paper). Note that the
4724 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4725 encoding parameters and hence was not vulnerable.
4728 *) BN_sqr() bug fix.
4729 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4731 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4732 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4733 followed by modular reduction.
4734 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4736 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4737 equivalent based on BN_pseudo_rand() instead of BN_rand().
4740 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4741 This function was broken, as the check for a new client hello message
4742 to handle SGC did not allow these large messages.
4743 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4746 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4749 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4750 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4753 *) Rework the configuration and shared library support for Tru64 Unix.
4754 The configuration part makes use of modern compiler features and
4755 still retains old compiler behavior for those that run older versions
4756 of the OS. The shared library support part includes a variant that
4757 uses the RPATH feature, and is available through the special
4758 configuration target "alpha-cc-rpath", which will never be selected
4760 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4762 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4763 with the same message size as in ssl3_get_certificate_request().
4764 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4765 messages might inadvertently be reject as too long.
4766 [Petr Lampa <lampa@fee.vutbr.cz>]
4768 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4771 *) Modified SSL library such that the verify_callback that has been set
4772 specificly for an SSL object with SSL_set_verify() is actually being
4773 used. Before the change, a verify_callback set with this function was
4774 ignored and the verify_callback() set in the SSL_CTX at the time of
4775 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4776 to allow the necessary settings.
4779 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4780 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4781 done automatically (in contradiction to the requirements of the C
4782 standard). This made problems when used from OpenSSH.
4785 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4786 dh->length and always used
4788 BN_rand_range(priv_key, dh->p).
4790 BN_rand_range() is not necessary for Diffie-Hellman, and this
4791 specific range makes Diffie-Hellman unnecessarily inefficient if
4792 dh->length (recommended exponent length) is much smaller than the
4793 length of dh->p. We could use BN_rand_range() if the order of
4794 the subgroup was stored in the DH structure, but we only have
4799 BN_rand(priv_key, l, ...)
4801 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4807 RSA_eay_public_encrypt
4808 RSA_eay_private_decrypt
4809 RSA_eay_private_encrypt (signing)
4810 RSA_eay_public_decrypt (signature verification)
4812 (default implementations for RSA_public_encrypt,
4813 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4814 always reject numbers >= n.
4817 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4818 to synchronize access to 'locking_thread'. This is necessary on
4819 systems where access to 'locking_thread' (an 'unsigned long'
4820 variable) is not atomic.
4823 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4824 *before* setting the 'crypto_lock_rand' flag. The previous code had
4825 a race condition if 0 is a valid thread ID.
4826 [Travis Vitek <vitek@roguewave.com>]
4828 *) Add support for shared libraries under Irix.
4829 [Albert Chin-A-Young <china@thewrittenword.com>]
4831 *) Add configuration option to build on Linux on both big-endian and
4833 [Ralf Baechle <ralf@uni-koblenz.de>]
4835 *) Add the possibility to create shared libraries on HP-UX.
4838 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4840 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4841 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4842 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4843 PRNG state recovery was possible based on the output of
4844 one PRNG request appropriately sized to gain knowledge on
4845 'md' followed by enough consecutive 1-byte PRNG requests
4846 to traverse all of 'state'.
4848 1. When updating 'md_local' (the current thread's copy of 'md')
4849 during PRNG output generation, hash all of the previous
4850 'md_local' value, not just the half used for PRNG output.
4852 2. Make the number of bytes from 'state' included into the hash
4853 independent from the number of PRNG bytes requested.
4855 The first measure alone would be sufficient to avoid
4856 Markku-Juhani's attack. (Actually it had never occurred
4857 to me that the half of 'md_local' used for chaining was the
4858 half from which PRNG output bytes were taken -- I had always
4859 assumed that the secret half would be used.) The second
4860 measure makes sure that additional data from 'state' is never
4861 mixed into 'md_local' in small portions; this heuristically
4862 further strengthens the PRNG.
4865 *) Fix crypto/bn/asm/mips3.s.
4868 *) When only the key is given to "enc", the IV is undefined. Print out
4869 an error message in this case.
4872 *) Handle special case when X509_NAME is empty in X509 printing routines.
4875 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4876 positive and less than q.
4879 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4880 used: it isn't thread safe and the add_lock_callback should handle
4882 [Paul Rose <Paul.Rose@bridge.com>]
4884 *) Verify that incoming data obeys the block size in
4885 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4889 [Ulf Möller, Bodo Möller]
4891 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4892 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4893 when fixing the server behaviour for backwards-compatible 'client
4894 hello' messages. (Note that the attack is impractical against
4895 SSL 3.0 and TLS 1.0 anyway because length and version checking
4896 means that the probability of guessing a valid ciphertext is
4897 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4900 Before 0.9.5, the countermeasure (hide the error by generating a
4901 random 'decryption result') did not work properly because
4902 ERR_clear_error() was missing, meaning that SSL_get_error() would
4903 detect the supposedly ignored error.
4905 Both problems are now fixed.
4908 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4909 (previously it was 1024).
4912 *) Fix for compatibility mode trust settings: ignore trust settings
4913 unless some valid trust or reject settings are present.
4916 *) Fix for blowfish EVP: its a variable length cipher.
4919 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4920 parameters in DSA public key structures and return an error in the
4921 DSA routines if parameters are absent.
4924 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4925 in the current directory if neither $RANDFILE nor $HOME was set.
4926 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4927 caused some confusion to Windows users who haven't defined $HOME.
4928 Thus RAND_file_name() is changed again: e_os.h can define a
4929 DEFAULT_HOME, which will be used if $HOME is not set.
4930 For Windows, we use "C:"; on other platforms, we still require
4931 environment variables.
4933 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4934 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4935 having multiple threads call RAND_poll() concurrently.
4938 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4939 combination of a flag and a thread ID variable.
4940 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4941 flag), *other* threads can enter ssleay_add_bytes without obeying
4942 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4943 that they do not hold after the first thread unsets add_do_not_lock).
4946 *) Change bctest again: '-x' expressions are not available in all
4950 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4952 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4953 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4955 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4956 the default extension for executables, if any. Also, make the perl
4957 scripts that use symlink() to test if it really exists and use "cp"
4958 if it doesn't. All this made OpenSSL compilable and installable in
4962 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4963 If SEQUENCE is length is indefinite just set c->slen to the total
4964 amount of data available.
4965 [Steve Henson, reported by shige@FreeBSD.org]
4966 [This change does not apply to 0.9.7.]
4968 *) Change bctest to avoid here-documents inside command substitution
4969 (workaround for FreeBSD /bin/sh bug).
4970 For compatibility with Ultrix, avoid shell functions (introduced
4971 in the bctest version that searches along $PATH).
4974 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4975 with des_encrypt() defined on some operating systems, like Solaris
4979 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4980 On the Importance of Eliminating Errors in Cryptographic
4981 Computations, J. Cryptology 14 (2001) 2, 101-119,
4982 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4985 *) MIPS assembler BIGNUM division bug fix.
4988 *) Disabled incorrect Alpha assembler code.
4991 *) Fix PKCS#7 decode routines so they correctly update the length
4992 after reading an EOC for the EXPLICIT tag.
4994 [This change does not apply to 0.9.7.]
4996 *) Fix bug in PKCS#12 key generation routines. This was triggered
4997 if a 3DES key was generated with a 0 initial byte. Include
4998 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4999 (but broken) behaviour.
5002 *) Enhance bctest to search for a working bc along $PATH and print
5004 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5006 *) Fix memory leaks in err.c: free err_data string if necessary;
5007 don't write to the wrong index in ERR_set_error_data.
5010 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5014 *) Replace rdtsc with _emit statements for VC++ version 5.
5015 [Jeremy Cooper <jeremy@baymoo.org>]
5017 *) Make it possible to reuse SSLv2 sessions.
5020 *) In copy_email() check for >= 0 as a return value for
5021 X509_NAME_get_index_by_NID() since 0 is a valid index.
5022 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5024 *) Avoid coredump with unsupported or invalid public keys by checking if
5025 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5026 PKCS7_verify() fails with non detached data.
5029 *) Don't use getenv in library functions when run as setuid/setgid.
5030 New function OPENSSL_issetugid().
5033 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5034 due to incorrect handling of multi-threading:
5036 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5038 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5040 3. Count how many times MemCheck_off() has been called so that
5041 nested use can be treated correctly. This also avoids
5042 inband-signalling in the previous code (which relied on the
5043 assumption that thread ID 0 is impossible).
5046 *) Add "-rand" option also to s_client and s_server.
5049 *) Fix CPU detection on Irix 6.x.
5050 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5051 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5053 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5056 [This change does not apply to 0.9.7.]
5058 *) Use the cached encoding of an X509_NAME structure rather than
5059 copying it. This is apparently the reason for the libsafe "errors"
5060 but the code is actually correct.
5063 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5064 Bleichenbacher's DSA attack.
5065 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5066 to be set and top=0 forces the highest bit to be set; top=-1 is new
5067 and leaves the highest bit random.
5068 [Ulf Moeller, Bodo Moeller]
5070 *) In the NCONF_...-based implementations for CONF_... queries
5071 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5072 a temporary CONF structure with the data component set to NULL
5073 (which gives segmentation faults in lh_retrieve).
5074 Instead, use NULL for the CONF pointer in CONF_get_string and
5075 CONF_get_number (which may use environment variables) and directly
5076 return NULL from CONF_get_section.
5079 *) Fix potential buffer overrun for EBCDIC.
5082 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5083 keyUsage if basicConstraints absent for a CA.
5086 *) Make SMIME_write_PKCS7() write mail header values with a format that
5087 is more generally accepted (no spaces before the semicolon), since
5088 some programs can't parse those values properly otherwise. Also make
5089 sure BIO's that break lines after each write do not create invalid
5093 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5094 macros previously used would not encode an empty SEQUENCE OF
5095 and break the signature.
5097 [This change does not apply to 0.9.7.]
5099 *) Zero the premaster secret after deriving the master secret in
5103 *) Add some EVP_add_digest_alias registrations (as found in
5104 OpenSSL_add_all_digests()) to SSL_library_init()
5105 aka OpenSSL_add_ssl_algorithms(). This provides improved
5106 compatibility with peers using X.509 certificates
5107 with unconventional AlgorithmIdentifier OIDs.
5110 *) Fix for Irix with NO_ASM.
5111 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5113 *) ./config script fixes.
5114 [Ulf Moeller, Richard Levitte]
5116 *) Fix 'openssl passwd -1'.
5119 *) Change PKCS12_key_gen_asc() so it can cope with non null
5120 terminated strings whose length is passed in the passlen
5121 parameter, for example from PEM callbacks. This was done
5122 by adding an extra length parameter to asc2uni().
5123 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5125 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5126 call failed, free the DSA structure.
5129 *) Fix to uni2asc() to cope with zero length Unicode strings.
5130 These are present in some PKCS#12 files.
5133 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5134 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5135 when writing a 32767 byte record.
5136 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5138 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5139 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5141 (RSA objects have a reference count access to which is protected
5142 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5143 so they are meant to be shared between threads.)
5144 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5145 "Reddie, Steven" <Steven.Reddie@ca.com>]
5147 *) Fix a deadlock in CRYPTO_mem_leaks().
5150 *) Use better test patterns in bntest.
5153 *) rand_win.c fix for Borland C.
5156 *) BN_rshift bugfix for n == 0.
5159 *) Add a 'bctest' script that checks for some known 'bc' bugs
5160 so that 'make test' does not abort just because 'bc' is broken.
5163 *) Store verify_result within SSL_SESSION also for client side to
5164 avoid potential security hole. (Re-used sessions on the client side
5165 always resulted in verify_result==X509_V_OK, not using the original
5166 result of the server certificate verification.)
5169 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5170 SSL3_RT_APPLICATION_DATA, return 0.
5171 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5175 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5176 releases, have been re-implemented by renaming the previous
5177 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5178 and ssl3_read_internal, respectively, and adding 'peek' parameters
5179 to them. The new ssl[23]_{read,peek} functions are calls to
5180 ssl[23]_read_internal with the 'peek' flag set appropriately.
5181 A 'peek' parameter has also been added to ssl3_read_bytes, which
5182 does the actual work for ssl3_read_internal.
5185 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5186 the method-specific "init()" handler. Also clean up ex_data after
5187 calling the method-specific "finish()" handler. Previously, this was
5188 happening the other way round.
5191 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5192 The previous value, 12, was not always sufficient for BN_mod_exp().
5195 *) Make sure that shared libraries get the internal name engine with
5196 the full version number and not just 0. This should mark the
5197 shared libraries as not backward compatible. Of course, this should
5198 be changed again when we can guarantee backward binary compatibility.
5201 *) Fix typo in get_cert_by_subject() in by_dir.c
5202 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5204 *) Rework the system to generate shared libraries:
5206 - Make note of the expected extension for the shared libraries and
5207 if there is a need for symbolic links from for example libcrypto.so.0
5208 to libcrypto.so.0.9.7. There is extended info in Configure for
5211 - Make as few rebuilds of the shared libraries as possible.
5213 - Still avoid linking the OpenSSL programs with the shared libraries.
5215 - When installing, install the shared libraries separately from the
5219 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5221 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5222 and not in SSL_clear because the latter is also used by the
5223 accept/connect functions; previously, the settings made by
5224 SSL_set_read_ahead would be lost during the handshake.
5225 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5227 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5228 Previously, it would create entries for disableed algorithms no
5232 *) Added several new manual pages for SSL_* function.
5235 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5237 *) In ssl23_get_client_hello, generate an error message when faced
5238 with an initial SSL 3.0/TLS record that is too small to contain the
5239 first two bytes of the ClientHello message, i.e. client_version.
5240 (Note that this is a pathologic case that probably has never happened
5241 in real life.) The previous approach was to use the version number
5242 from the record header as a substitute; but our protocol choice
5243 should not depend on that one because it is not authenticated
5244 by the Finished messages.
5247 *) More robust randomness gathering functions for Windows.
5248 [Jeffrey Altman <jaltman@columbia.edu>]
5250 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5251 not set then we don't setup the error code for issuer check errors
5252 to avoid possibly overwriting other errors which the callback does
5253 handle. If an application does set the flag then we assume it knows
5254 what it is doing and can handle the new informational codes
5258 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5259 a general "ANY" type, as such it should be able to decode anything
5260 including tagged types. However it didn't check the class so it would
5261 wrongly interpret tagged types in the same way as their universal
5262 counterpart and unknown types were just rejected. Changed so that the
5263 tagged and unknown types are handled in the same way as a SEQUENCE:
5264 that is the encoding is stored intact. There is also a new type
5265 "V_ASN1_OTHER" which is used when the class is not universal, in this
5266 case we have no idea what the actual type is so we just lump them all
5270 *) On VMS, stdout may very well lead to a file that is written to
5271 in a record-oriented fashion. That means that every write() will
5272 write a separate record, which will be read separately by the
5273 programs trying to read from it. This can be very confusing.
5275 The solution is to put a BIO filter in the way that will buffer
5276 text until a linefeed is reached, and then write everything a
5277 line at a time, so every record written will be an actual line,
5278 not chunks of lines and not (usually doesn't happen, but I've
5279 seen it once) several lines in one record. BIO_f_linebuffer() is
5282 Currently, it's a VMS-only method, because that's where it has
5283 been tested well enough.
5286 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5287 it can return incorrect results.
5288 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5289 but it was in 0.9.6-beta[12].)
5292 *) Disable the check for content being present when verifying detached
5293 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5294 include zero length content when signing messages.
5297 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5298 BIO_ctrl (for BIO pairs).
5301 *) Add DSO method for VMS.
5304 *) Bug fix: Montgomery multiplication could produce results with the
5308 *) Add RPM specification openssl.spec and modify it to build three
5309 packages. The default package contains applications, application
5310 documentation and run-time libraries. The devel package contains
5311 include files, static libraries and function documentation. The
5312 doc package contains the contents of the doc directory. The original
5313 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5316 *) Add a large number of documentation files for many SSL routines.
5317 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5319 *) Add a configuration entry for Sony News 4.
5320 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5322 *) Don't set the two most significant bits to one when generating a
5323 random number < q in the DSA library.
5326 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5327 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5328 the underlying transport is blocking) if a handshake took place.
5329 (The default behaviour is needed by applications such as s_client
5330 and s_server that use select() to determine when to use SSL_read;
5331 but for applications that know in advance when to expect data, it
5332 just makes things more complicated.)
5335 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5339 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5340 work better on such systems.
5341 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5343 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5344 Update PKCS12_parse() so it copies the friendlyName and the
5345 keyid to the certificates aux info.
5348 *) Fix bug in PKCS7_verify() which caused an infinite loop
5349 if there was more than one signature.
5350 [Sven Uszpelkat <su@celocom.de>]
5352 *) Major change in util/mkdef.pl to include extra information
5353 about each symbol, as well as presentig variables as well
5354 as functions. This change means that there's n more need
5355 to rebuild the .num files when some algorithms are excluded.
5358 *) Allow the verify time to be set by an application,
5359 rather than always using the current time.
5362 *) Phase 2 verify code reorganisation. The certificate
5363 verify code now looks up an issuer certificate by a
5364 number of criteria: subject name, authority key id
5365 and key usage. It also verifies self signed certificates
5366 by the same criteria. The main comparison function is
5367 X509_check_issued() which performs these checks.
5369 Lot of changes were necessary in order to support this
5370 without completely rewriting the lookup code.
5372 Authority and subject key identifier are now cached.
5374 The LHASH 'certs' is X509_STORE has now been replaced
5375 by a STACK_OF(X509_OBJECT). This is mainly because an
5376 LHASH can't store or retrieve multiple objects with
5377 the same hash value.
5379 As a result various functions (which were all internal
5380 use only) have changed to handle the new X509_STORE
5381 structure. This will break anything that messed round
5382 with X509_STORE internally.
5384 The functions X509_STORE_add_cert() now checks for an
5385 exact match, rather than just subject name.
5387 The X509_STORE API doesn't directly support the retrieval
5388 of multiple certificates matching a given criteria, however
5389 this can be worked round by performing a lookup first
5390 (which will fill the cache with candidate certificates)
5391 and then examining the cache for matches. This is probably
5392 the best we can do without throwing out X509_LOOKUP
5393 entirely (maybe later...).
5395 The X509_VERIFY_CTX structure has been enhanced considerably.
5397 All certificate lookup operations now go via a get_issuer()
5398 callback. Although this currently uses an X509_STORE it
5399 can be replaced by custom lookups. This is a simple way
5400 to bypass the X509_STORE hackery necessary to make this
5401 work and makes it possible to use more efficient techniques
5402 in future. A very simple version which uses a simple
5403 STACK for its trusted certificate store is also provided
5404 using X509_STORE_CTX_trusted_stack().
5406 The verify_cb() and verify() callbacks now have equivalents
5407 in the X509_STORE_CTX structure.
5409 X509_STORE_CTX also has a 'flags' field which can be used
5410 to customise the verify behaviour.
5413 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5414 excludes S/MIME capabilities.
5417 *) When a certificate request is read in keep a copy of the
5418 original encoding of the signed data and use it when outputing
5419 again. Signatures then use the original encoding rather than
5420 a decoded, encoded version which may cause problems if the
5421 request is improperly encoded.
5424 *) For consistency with other BIO_puts implementations, call
5425 buffer_write(b, ...) directly in buffer_puts instead of calling
5428 In BIO_puts, increment b->num_write as in BIO_write.
5429 [Peter.Sylvester@EdelWeb.fr]
5431 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5432 BN_zero, we may not return a BIGNUM with an array consisting of
5436 *) Avoid calling abort() from within the library when problems are
5437 detected, except if preprocessor symbols have been defined
5438 (such as REF_CHECK, BN_DEBUG etc.).
5441 *) New openssl application 'rsautl'. This utility can be
5442 used for low level RSA operations. DER public key
5443 BIO/fp routines also added.
5446 *) New Configure entry and patches for compiling on QNX 4.
5447 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5449 *) A demo state-machine implementation was sponsored by
5450 Nuron (http://www.nuron.com/) and is now available in
5451 demos/state_machine.
5454 *) New options added to the 'dgst' utility for signature
5455 generation and verification.
5458 *) Unrecognized PKCS#7 content types are now handled via a
5459 catch all ASN1_TYPE structure. This allows unsupported
5460 types to be stored as a "blob" and an application can
5461 encode and decode it manually.
5464 *) Fix various signed/unsigned issues to make a_strex.c
5466 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5468 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5469 length if passed a buffer. ASN1_INTEGER_to_BN failed
5470 if passed a NULL BN and its argument was negative.
5471 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5473 *) Modification to PKCS#7 encoding routines to output definite
5474 length encoding. Since currently the whole structures are in
5475 memory there's not real point in using indefinite length
5476 constructed encoding. However if OpenSSL is compiled with
5477 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5480 *) Added BIO_vprintf() and BIO_vsnprintf().
5483 *) Added more prefixes to parse for in the the strings written
5484 through a logging bio, to cover all the levels that are available
5485 through syslog. The prefixes are now:
5487 PANIC, EMERG, EMR => LOG_EMERG
5488 ALERT, ALR => LOG_ALERT
5489 CRIT, CRI => LOG_CRIT
5490 ERROR, ERR => LOG_ERR
5491 WARNING, WARN, WAR => LOG_WARNING
5492 NOTICE, NOTE, NOT => LOG_NOTICE
5493 INFO, INF => LOG_INFO
5494 DEBUG, DBG => LOG_DEBUG
5496 and as before, if none of those prefixes are present at the
5497 beginning of the string, LOG_ERR is chosen.
5499 On Win32, the LOG_* levels are mapped according to this:
5501 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5502 LOG_WARNING => EVENTLOG_WARNING_TYPE
5503 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5507 *) Made it possible to reconfigure with just the configuration
5508 argument "reconf" or "reconfigure". The command line arguments
5509 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5510 and are retrieved from there when reconfiguring.
5514 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5516 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5519 *) The obj_dat.pl script was messing up the sorting of object
5520 names. The reason was that it compared the quoted version
5521 of strings as a result "OCSP" > "OCSP Signing" because
5522 " > SPACE. Changed script to store unquoted versions of
5523 names and add quotes on output. It was also omitting some
5524 names from the lookup table if they were given a default
5525 value (that is if SN is missing it is given the same
5526 value as LN and vice versa), these are now added on the
5527 grounds that if an object has a name we should be able to
5528 look it up. Finally added warning output when duplicate
5529 short or long names are found.
5532 *) Changes needed for Tandem NSK.
5533 [Scott Uroff <scott@xypro.com>]
5535 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5536 RSA_padding_check_SSLv23(), special padding was never detected
5537 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5538 version rollback attacks was not effective.
5540 In s23_clnt.c, don't use special rollback-attack detection padding
5541 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5542 client; similarly, in s23_srvr.c, don't do the rollback check if
5543 SSL 2.0 is the only protocol enabled in the server.
5546 *) Make it possible to get hexdumps of unprintable data with 'openssl
5547 asn1parse'. By implication, the functions ASN1_parse_dump() and
5548 BIO_dump_indent() are added.
5551 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5552 these print out strings and name structures based on various
5553 flags including RFC2253 support and proper handling of
5554 multibyte characters. Added options to the 'x509' utility
5555 to allow the various flags to be set.
5558 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5559 Also change the functions X509_cmp_current_time() and
5560 X509_gmtime_adj() work with an ASN1_TIME structure,
5561 this will enable certificates using GeneralizedTime in validity
5562 dates to be checked.
5565 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5566 negative public key encodings) on by default,
5567 NO_NEG_PUBKEY_BUG can be set to disable it.
5570 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5571 content octets. An i2c_ASN1_OBJECT is unnecessary because
5572 the encoding can be trivially obtained from the structure.
5575 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5576 not read locks (CRYPTO_r_[un]lock).
5579 *) A first attempt at creating official support for shared
5580 libraries through configuration. I've kept it so the
5581 default is static libraries only, and the OpenSSL programs
5582 are always statically linked for now, but there are
5583 preparations for dynamic linking in place.
5584 This has been tested on Linux and Tru64.
5587 *) Randomness polling function for Win9x, as described in:
5588 Peter Gutmann, Software Generation of Practically Strong
5592 *) Fix so PRNG is seeded in req if using an already existing
5596 *) New options to smime application. -inform and -outform
5597 allow alternative formats for the S/MIME message including
5598 PEM and DER. The -content option allows the content to be
5599 specified separately. This should allow things like Netscape
5600 form signing output easier to verify.
5603 *) Fix the ASN1 encoding of tags using the 'long form'.
5606 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5607 STRING types. These convert content octets to and from the
5608 underlying type. The actual tag and length octets are
5609 already assumed to have been read in and checked. These
5610 are needed because all other string types have virtually
5611 identical handling apart from the tag. By having versions
5612 of the ASN1 functions that just operate on content octets
5613 IMPLICIT tagging can be handled properly. It also allows
5614 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5615 and ASN1_INTEGER are identical apart from the tag.
5618 *) Change the handling of OID objects as follows:
5620 - New object identifiers are inserted in objects.txt, following
5621 the syntax given in objects.README.
5622 - objects.pl is used to process obj_mac.num and create a new
5624 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5627 This is currently kind of a hack, and the perl code in objects.pl
5628 isn't very elegant, but it works as I intended. The simplest way
5629 to check that it worked correctly is to look in obj_dat.h and
5630 check the array nid_objs and make sure the objects haven't moved
5631 around (this is important!). Additions are OK, as well as
5632 consistent name changes.
5635 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5638 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5639 The given file adds to whatever has already been seeded into the
5640 random pool through the RANDFILE configuration file option or
5641 environment variable, or the default random state file.
5644 *) mkstack.pl now sorts each macro group into lexical order.
5645 Previously the output order depended on the order the files
5646 appeared in the directory, resulting in needless rewriting
5650 *) Patches to make OpenSSL compile under Win32 again. Mostly
5651 work arounds for the VC++ problem that it treats func() as
5652 func(void). Also stripped out the parts of mkdef.pl that
5653 added extra typesafe functions: these no longer exist.
5656 *) Reorganisation of the stack code. The macros are now all
5657 collected in safestack.h . Each macro is defined in terms of
5658 a "stack macro" of the form SKM_<name>(type, a, b). The
5659 DEBUG_SAFESTACK is now handled in terms of function casts,
5660 this has the advantage of retaining type safety without the
5661 use of additional functions. If DEBUG_SAFESTACK is not defined
5662 then the non typesafe macros are used instead. Also modified the
5663 mkstack.pl script to handle the new form. Needs testing to see
5664 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5665 the default if no major problems. Similar behaviour for ASN1_SET_OF
5666 and PKCS12_STACK_OF.
5669 *) When some versions of IIS use the 'NET' form of private key the
5670 key derivation algorithm is different. Normally MD5(password) is
5671 used as a 128 bit RC4 key. In the modified case
5672 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5673 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5674 as the old Netscape_RSA functions except they have an additional
5675 'sgckey' parameter which uses the modified algorithm. Also added
5676 an -sgckey command line option to the rsa utility. Thanks to
5677 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5678 algorithm to openssl-dev.
5681 *) The evp_local.h macros were using 'c.##kname' which resulted in
5682 invalid expansion on some systems (SCO 5.0.5 for example).
5683 Corrected to 'c.kname'.
5684 [Phillip Porch <root@theporch.com>]
5686 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5687 a STACK of email addresses from a certificate or request, these look
5688 in the subject name and the subject alternative name extensions and
5689 omit any duplicate addresses.
5692 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5693 This makes DSA verification about 2 % faster.
5696 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5697 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5698 plus overhead for 1024 bit moduli).
5699 This makes exponentiations about 0.5 % faster for 1024 bit
5700 exponents (as measured by "openssl speed rsa2048").
5703 *) Rename memory handling macros to avoid conflicts with other
5705 Malloc => OPENSSL_malloc
5706 Malloc_locked => OPENSSL_malloc_locked
5707 Realloc => OPENSSL_realloc
5708 Free => OPENSSL_free
5711 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5712 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5715 *) CygWin32 support.
5716 [John Jarvie <jjarvie@newsguy.com>]
5718 *) The type-safe stack code has been rejigged. It is now only compiled
5719 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5720 by default all type-specific stack functions are "#define"d back to
5721 standard stack functions. This results in more streamlined output
5722 but retains the type-safety checking possibilities of the original
5726 *) The STACK code has been cleaned up, and certain type declarations
5727 that didn't make a lot of sense have been brought in line. This has
5728 also involved a cleanup of sorts in safestack.h to more correctly
5729 map type-safe stack functions onto their plain stack counterparts.
5730 This work has also resulted in a variety of "const"ifications of
5731 lots of the code, especially "_cmp" operations which should normally
5732 be prototyped with "const" parameters anyway.
5735 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5736 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5737 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5738 where all of 'md' is used each time the PRNG is used, but 'state'
5739 is used only indexed by a cyclic counter. As entropy may not be
5740 well distributed from the beginning, 'md' is important as a
5741 chaining variable. However, the output function chains only half
5742 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5743 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5744 in all of 'state' being rewritten, with the new values depending
5745 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5748 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5749 the handshake is continued after ssl_verify_cert_chain();
5750 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5751 can lead to 'unexplainable' connection aborts later.
5752 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5754 *) Major EVP API cipher revision.
5755 Add hooks for extra EVP features. This allows various cipher
5756 parameters to be set in the EVP interface. Support added for variable
5757 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5758 setting of RC2 and RC5 parameters.
5760 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5763 Remove lots of duplicated code from the EVP library. For example *every*
5764 cipher init() function handles the 'iv' in the same way according to the
5765 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5766 for CFB and OFB modes they zero ctx->num.
5768 New functionality allows removal of S/MIME code RC2 hack.
5770 Most of the routines have the same form and so can be declared in terms
5773 By shifting this to the top level EVP_CipherInit() it can be removed from
5774 all individual ciphers. If the cipher wants to handle IVs or keys
5775 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5778 Change lots of functions like EVP_EncryptUpdate() to now return a
5779 value: although software versions of the algorithms cannot fail
5780 any installed hardware versions can.
5783 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5784 this option is set, tolerate broken clients that send the negotiated
5785 protocol version number instead of the requested protocol version
5789 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5790 i.e. non-zero for export ciphersuites, zero otherwise.
5791 Previous versions had this flag inverted, inconsistent with
5792 rsa_tmp_cb (..._TMP_RSA_CB).
5793 [Bodo Moeller; problem reported by Amit Chopra]
5795 *) Add missing DSA library text string. Work around for some IIS
5796 key files with invalid SEQUENCE encoding.
5799 *) Add a document (doc/standards.txt) that list all kinds of standards
5800 and so on that are implemented in OpenSSL.
5803 *) Enhance c_rehash script. Old version would mishandle certificates
5804 with the same subject name hash and wouldn't handle CRLs at all.
5805 Added -fingerprint option to crl utility, to support new c_rehash
5809 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5812 *) Fix for SSL server purpose checking. Server checking was
5813 rejecting certificates which had extended key usage present
5814 but no ssl client purpose.
5815 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5817 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5818 is a little unclear about how a blank password is handled.
5819 Since the password in encoded as a BMPString with terminating
5820 double NULL a zero length password would end up as just the
5821 double NULL. However no password at all is different and is
5822 handled differently in the PKCS#12 key generation code. NS
5823 treats a blank password as zero length. MSIE treats it as no
5824 password on export: but it will try both on import. We now do
5825 the same: PKCS12_parse() tries zero length and no password if
5826 the password is set to "" or NULL (NULL is now a valid password:
5827 it wasn't before) as does the pkcs12 application.
5830 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5831 perror when PEM_read_bio_X509_REQ fails, the error message must
5832 be obtained from the error queue.
5835 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5836 it in ERR_remove_state if appropriate, and change ERR_get_state
5837 accordingly to avoid race conditions (this is necessary because
5838 thread_hash is no longer constant once set).
5841 *) Bugfix for linux-elf makefile.one.
5844 *) RSA_get_default_method() will now cause a default
5845 RSA_METHOD to be chosen if one doesn't exist already.
5846 Previously this was only set during a call to RSA_new()
5847 or RSA_new_method(NULL) meaning it was possible for
5848 RSA_get_default_method() to return NULL.
5851 *) Added native name translation to the existing DSO code
5852 that will convert (if the flag to do so is set) filenames
5853 that are sufficiently small and have no path information
5854 into a canonical native form. Eg. "blah" converted to
5855 "libblah.so" or "blah.dll" etc.
5858 *) New function ERR_error_string_n(e, buf, len) which is like
5859 ERR_error_string(e, buf), but writes at most 'len' bytes
5860 including the 0 terminator. For ERR_error_string_n, 'buf'
5862 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5864 *) CONF library reworked to become more general. A new CONF
5865 configuration file reader "class" is implemented as well as a
5866 new functions (NCONF_*, for "New CONF") to handle it. The now
5867 old CONF_* functions are still there, but are reimplemented to
5868 work in terms of the new functions. Also, a set of functions
5869 to handle the internal storage of the configuration data is
5870 provided to make it easier to write new configuration file
5871 reader "classes" (I can definitely see something reading a
5872 configuration file in XML format, for example), called _CONF_*,
5873 or "the configuration storage API"...
5875 The new configuration file reading functions are:
5877 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5878 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5880 NCONF_default, NCONF_WIN32
5882 NCONF_dump_fp, NCONF_dump_bio
5884 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5885 NCONF_new creates a new CONF object. This works in the same way
5886 as other interfaces in OpenSSL, like the BIO interface.
5887 NCONF_dump_* dump the internal storage of the configuration file,
5888 which is useful for debugging. All other functions take the same
5889 arguments as the old CONF_* functions wth the exception of the
5890 first that must be a `CONF *' instead of a `LHASH *'.
5892 To make it easer to use the new classes with the old CONF_* functions,
5893 the function CONF_set_default_method is provided.
5896 *) Add '-tls1' option to 'openssl ciphers', which was already
5897 mentioned in the documentation but had not been implemented.
5898 (This option is not yet really useful because even the additional
5899 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5902 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5903 OpenSSL-based applications) load shared libraries and bind to
5904 them in a portable way.
5905 [Geoff Thorpe, with contributions from Richard Levitte]
5907 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5909 *) Make sure _lrotl and _lrotr are only used with MSVC.
5911 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5912 (the default implementation of RAND_status).
5914 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5915 to '-clrext' (= clear extensions), as intended and documented.
5916 [Bodo Moeller; inconsistency pointed out by Michael Attili
5919 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5920 was larger than the MD block size.
5921 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5923 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5924 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5925 using the passed key: if the passed key was a private key the result
5926 of X509_print(), for example, would be to print out all the private key
5930 *) des_quad_cksum() byte order bug fix.
5931 [Ulf Möller, using the problem description in krb4-0.9.7, where
5932 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5934 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5936 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5938 *) For easily testing in shell scripts whether some command
5939 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5940 returns with exit code 0 iff no command of the given name is available.
5941 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5942 the output goes to stdout and nothing is printed to stderr.
5943 Additional arguments are always ignored.
5945 Since for each cipher there is a command of the same name,
5946 the 'no-cipher' compilation switches can be tested this way.
5948 ('openssl no-XXX' is not able to detect pseudo-commands such
5949 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5952 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5955 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5956 is set; it will be thrown away anyway because each handshake creates
5958 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5959 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5960 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5961 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5964 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5965 'Q' and 'R' lose their special meanings (quit/renegotiate).
5966 This is part of what -quiet does; unlike -quiet, -ign_eof
5967 does not suppress any output.
5970 *) Add compatibility options to the purpose and trust code. The
5971 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5972 accepts a certificate or CA, this was the previous behaviour,
5973 with all the associated security issues.
5975 X509_TRUST_COMPAT is the old trust behaviour: only and
5976 automatically trust self signed roots in certificate store. A
5977 new trust setting X509_TRUST_DEFAULT is used to specify that
5978 a purpose has no associated trust setting and it should instead
5979 use the value in the default purpose.
5982 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5983 and fix a memory leak.
5986 *) In util/mkerr.pl (which implements 'make errors'), preserve
5987 reason strings from the previous version of the .c file, as
5988 the default to have only downcase letters (and digits) in
5989 automatically generated reasons codes is not always appropriate.
5992 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5993 using strerror. Previously, ERR_reason_error_string() returned
5994 library names as reason strings for SYSerr; but SYSerr is a special
5995 case where small numbers are errno values, not library numbers.
5998 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5999 converts DSA parameters into DH parameters. (When creating parameters,
6000 DSA_generate_parameters is used.)
6003 *) Include 'length' (recommended exponent length) in C code generated
6004 by 'openssl dhparam -C'.
6007 *) The second argument to set_label in perlasm was already being used
6008 so couldn't be used as a "file scope" flag. Moved to third argument
6012 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6013 instead of RAND_bytes for encryption IVs and salts.
6016 *) Include RAND_status() into RAND_METHOD instead of implementing
6017 it only for md_rand.c Otherwise replacing the PRNG by calling
6018 RAND_set_rand_method would be impossible.
6021 *) Don't let DSA_generate_key() enter an infinite loop if the random
6022 number generation fails.
6025 *) New 'rand' application for creating pseudo-random output.
6028 *) Added configuration support for Linux/IA64
6029 [Rolf Haberrecker <rolf@suse.de>]
6031 *) Assembler module support for Mingw32.
6034 *) Shared library support for HPUX (in shlib/).
6035 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6037 *) Shared library support for Solaris gcc.
6038 [Lutz Behnke <behnke@trustcenter.de>]
6040 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6042 *) PKCS7_encrypt() was adding text MIME headers twice because they
6043 were added manually and by SMIME_crlf_copy().
6046 *) In bntest.c don't call BN_rand with zero bits argument.
6047 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6049 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6050 case was implemented. This caused BN_div_recp() to fail occasionally.
6053 *) Add an optional second argument to the set_label() in the perl
6054 assembly language builder. If this argument exists and is set
6055 to 1 it signals that the assembler should use a symbol whose
6056 scope is the entire file, not just the current function. This
6057 is needed with MASM which uses the format label:: for this scope.
6058 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6060 *) Change the ASN1 types so they are typedefs by default. Before
6061 almost all types were #define'd to ASN1_STRING which was causing
6062 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6066 *) Change names of new functions to the new get1/get0 naming
6067 convention: After 'get1', the caller owns a reference count
6068 and has to call ..._free; 'get0' returns a pointer to some
6069 data structure without incrementing reference counters.
6070 (Some of the existing 'get' functions increment a reference
6071 counter, some don't.)
6072 Similarly, 'set1' and 'add1' functions increase reference
6073 counters or duplicate objects.
6076 *) Allow for the possibility of temp RSA key generation failure:
6077 the code used to assume it always worked and crashed on failure.
6080 *) Fix potential buffer overrun problem in BIO_printf().
6081 [Ulf Möller, using public domain code by Patrick Powell; problem
6082 pointed out by David Sacerdote <das33@cornell.edu>]
6084 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6085 RAND_egd() and RAND_status(). In the command line application,
6086 the EGD socket can be specified like a seed file using RANDFILE
6090 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6091 Some CAs (e.g. Verisign) distribute certificates in this form.
6094 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6095 list to exclude them. This means that no special compilation option
6096 is needed to use anonymous DH: it just needs to be included in the
6100 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6101 EVP_MD_type. The old functionality is available in a new macro called
6102 EVP_MD_md(). Change code that uses it and update docs.
6105 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6106 where the 'void *' argument is replaced by a function pointer argument.
6107 Previously 'void *' was abused to point to functions, which works on
6108 many platforms, but is not correct. As these functions are usually
6109 called by macros defined in OpenSSL header files, most source code
6110 should work without changes.
6113 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6114 sections with information on -D... compiler switches used for
6115 compiling the library so that applications can see them. To enable
6116 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6117 must be defined. E.g.,
6118 #define OPENSSL_ALGORITHM_DEFINES
6119 #include <openssl/opensslconf.h>
6120 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6121 [Richard Levitte, Ulf and Bodo Möller]
6123 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6127 *) Change the 'other' type in certificate aux info to a STACK_OF
6128 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6129 the required ASN1 format: arbitrary types determined by an OID.
6132 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6133 argument to 'req'. This is not because the function is newer or
6134 better than others it just uses the work 'NEW' in the certificate
6135 request header lines. Some software needs this.
6138 *) Reorganise password command line arguments: now passwords can be
6139 obtained from various sources. Delete the PEM_cb function and make
6140 it the default behaviour: i.e. if the callback is NULL and the
6141 usrdata argument is not NULL interpret it as a null terminated pass
6142 phrase. If usrdata and the callback are NULL then the pass phrase
6143 is prompted for as usual.
6146 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6147 the support is automatically enabled. The resulting binaries will
6148 autodetect the card and use it if present.
6149 [Ben Laurie and Compaq Inc.]
6151 *) Work around for Netscape hang bug. This sends certificate request
6152 and server done in one record. Since this is perfectly legal in the
6153 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6154 the bugs/SSLv3 entry for more info.
6157 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6160 *) Add -rand argument to smime and pkcs12 applications and read/write
6164 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6167 *) Add command line password options to the remaining applications.
6170 *) Bug fix for BN_div_recp() for numerators with an even number of
6174 *) More tests in bntest.c, and changed test_bn output.
6177 *) ./config recognizes MacOS X now.
6180 *) Bug fix for BN_div() when the first words of num and divsor are
6181 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6184 *) Add support for various broken PKCS#8 formats, and command line
6185 options to produce them.
6188 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6189 get temporary BIGNUMs from a BN_CTX.
6192 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6196 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6197 include a #define from the old name to the new. The original intent
6198 was that statically linked binaries could for example just call
6199 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6200 link with digests. This never worked becayse SSLeay_add_all_digests()
6201 and SSLeay_add_all_ciphers() were in the same source file so calling
6202 one would link with the other. They are now in separate source files.
6205 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6208 *) Use a less unusual form of the Miller-Rabin primality test (it used
6209 a binary algorithm for exponentiation integrated into the Miller-Rabin
6210 loop, our standard modexp algorithms are faster).
6213 *) Support for the EBCDIC character set completed.
6214 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6216 *) Source code cleanups: use const where appropriate, eliminate casts,
6217 use void * instead of char * in lhash.
6220 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6221 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6222 this the server could overwrite ephemeral keys that the client
6226 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6227 using 50 iterations of the Rabin-Miller test.
6229 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6230 iterations of the Rabin-Miller test as required by the appendix
6231 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6232 As BN_is_prime_fasttest includes trial division, DSA parameter
6233 generation becomes much faster.
6235 This implies a change for the callback functions in DSA_is_prime
6236 and DSA_generate_parameters: The callback function is called once
6237 for each positive witness in the Rabin-Miller test, not just
6238 occasionally in the inner loop; and the parameters to the
6239 callback function now provide an iteration count for the outer
6240 loop rather than for the current invocation of the inner loop.
6241 DSA_generate_parameters additionally can call the callback
6242 function with an 'iteration count' of -1, meaning that a
6243 candidate has passed the trial division test (when q is generated
6244 from an application-provided seed, trial division is skipped).
6247 *) New function BN_is_prime_fasttest that optionally does trial
6248 division before starting the Rabin-Miller test and has
6249 an additional BN_CTX * argument (whereas BN_is_prime always
6250 has to allocate at least one BN_CTX).
6251 'callback(1, -1, cb_arg)' is called when a number has passed the
6252 trial division stage.
6255 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6259 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6262 *) New function BN_pseudo_rand().
6265 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6266 bignum version of BN_from_montgomery() with the working code from
6267 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6271 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6272 made it impossible to use the same SSL_SESSION data structure in
6273 SSL2 clients in multiple threads.
6276 *) The return value of RAND_load_file() no longer counts bytes obtained
6277 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6278 to seed the PRNG (previously an explicit byte count was required).
6279 [Ulf Möller, Bodo Möller]
6281 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6282 used (char *) instead of (void *) and had casts all over the place.
6285 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6288 *) Retain source code compatibility for BN_prime_checks macro:
6289 BN_is_prime(..., BN_prime_checks, ...) now uses
6290 BN_prime_checks_for_size to determine the appropriate number of
6291 Rabin-Miller iterations.
6294 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6295 DH_CHECK_P_NOT_SAFE_PRIME.
6296 (Check if this is true? OpenPGP calls them "strong".)
6299 *) Merge the functionality of "dh" and "gendh" programs into a new program
6300 "dhparam". The old programs are retained for now but will handle DH keys
6301 (instead of parameters) in future.
6304 *) Make the ciphers, s_server and s_client programs check the return values
6305 when a new cipher list is set.
6308 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6309 ciphers. Before when the 56bit ciphers were enabled the sorting was
6312 The syntax for the cipher sorting has been extended to support sorting by
6313 cipher-strength (using the strength_bits hard coded in the tables).
6314 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6316 Fix a bug in the cipher-command parser: when supplying a cipher command
6317 string with an "undefined" symbol (neither command nor alphanumeric
6318 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6319 an error is flagged.
6321 Due to the strength-sorting extension, the code of the
6322 ssl_create_cipher_list() function was completely rearranged. I hope that
6323 the readability was also increased :-)
6324 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6326 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6327 for the first serial number and places 2 in the serial number file. This
6328 avoids problems when the root CA is created with serial number zero and
6329 the first user certificate has the same issuer name and serial number
6333 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6334 the new code. Add documentation for this stuff.
6337 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6338 X509_*() to X509at_*() on the grounds that they don't handle X509
6339 structures and behave in an analagous way to the X509v3 functions:
6340 they shouldn't be called directly but wrapper functions should be used
6343 So we also now have some wrapper functions that call the X509at functions
6344 when passed certificate requests. (TO DO: similar things can be done with
6345 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6346 things. Some of these need some d2i or i2d and print functionality
6347 because they handle more complex structures.)
6350 *) Add missing #ifndefs that caused missing symbols when building libssl
6351 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6352 NO_RSA in ssl/s2*.c.
6353 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6355 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6356 has a return value which indicates the quality of the random data
6357 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6358 error queue. New function RAND_pseudo_bytes() generates output that is
6359 guaranteed to be unique but not unpredictable. RAND_add is like
6360 RAND_seed, but takes an extra argument for an entropy estimate
6361 (RAND_seed always assumes full entropy).
6364 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6365 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6366 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6367 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6368 false-positive rate of at most 2^-80 for random input.
6371 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6374 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6375 in the 0.9.5 release), this returns the chain
6376 from an X509_CTX structure with a dup of the stack and all
6377 the X509 reference counts upped: so the stack will exist
6378 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6381 Also make SSL_SESSION_print() print out the verify return
6385 *) Add manpage for the pkcs12 command. Also change the default
6386 behaviour so MAC iteration counts are used unless the new
6387 -nomaciter option is used. This improves file security and
6388 only older versions of MSIE (4.0 for example) need it.
6391 *) Honor the no-xxx Configure options when creating .DEF files.
6394 *) Add PKCS#10 attributes to field table: challengePassword,
6395 unstructuredName and unstructuredAddress. These are taken from
6396 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6397 international characters are used.
6399 More changes to X509_ATTRIBUTE code: allow the setting of types
6400 based on strings. Remove the 'loc' parameter when adding
6401 attributes because these will be a SET OF encoding which is sorted
6405 *) Initial changes to the 'req' utility to allow request generation
6406 automation. This will allow an application to just generate a template
6407 file containing all the field values and have req construct the
6410 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6411 used all over the place including certificate requests and PKCS#7
6412 structures. They are currently handled manually where necessary with
6413 some primitive wrappers for PKCS#7. The new functions behave in a
6414 manner analogous to the X509 extension functions: they allow
6415 attributes to be looked up by NID and added.
6417 Later something similar to the X509V3 code would be desirable to
6418 automatically handle the encoding, decoding and printing of the
6419 more complex types. The string types like challengePassword can
6420 be handled by the string table functions.
6422 Also modified the multi byte string table handling. Now there is
6423 a 'global mask' which masks out certain types. The table itself
6424 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6425 is useful when for example there is only one permissible type
6426 (as in countryName) and using the mask might result in no valid
6430 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6431 SSL_get_peer_finished to allow applications to obtain the latest
6432 Finished messages sent to the peer or expected from the peer,
6433 respectively. (SSL_get_peer_finished is usually the Finished message
6434 actually received from the peer, otherwise the protocol will be aborted.)
6436 As the Finished message are message digests of the complete handshake
6437 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6438 be used for external authentication procedures when the authentication
6439 provided by SSL/TLS is not desired or is not enough.
6442 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6443 the host supports BWX extension and if Compaq C is present on the
6444 $PATH. Just exploiting of the BWX extension results in 20-30%
6445 performance kick for some algorithms, e.g. DES and RC4 to mention
6446 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6450 *) Add support for MS "fast SGC". This is arguably a violation of the
6451 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6452 weak crypto and after checking the certificate is SGC a second one
6453 with strong crypto. MS SGC stops the first handshake after receiving
6454 the server certificate message and sends a second client hello. Since
6455 a server will typically do all the time consuming operations before
6456 expecting any further messages from the client (server key exchange
6457 is the most expensive) there is little difference between the two.
6459 To get OpenSSL to support MS SGC we have to permit a second client
6460 hello message after we have sent server done. In addition we have to
6461 reset the MAC if we do get this second client hello.
6464 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6465 if a DER encoded private key is RSA or DSA traditional format. Changed
6466 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6467 format DER encoded private key. Newer code should use PKCS#8 format which
6468 has the key type encoded in the ASN1 structure. Added DER private key
6469 support to pkcs8 application.
6472 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6473 ciphersuites has been selected (as required by the SSL 3/TLS 1
6474 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6475 is set, we interpret this as a request to violate the specification
6476 (the worst that can happen is a handshake failure, and 'correct'
6477 behaviour would result in a handshake failure anyway).
6480 *) In SSL_CTX_add_session, take into account that there might be multiple
6481 SSL_SESSION structures with the same session ID (e.g. when two threads
6482 concurrently obtain them from an external cache).
6483 The internal cache can handle only one SSL_SESSION with a given ID,
6484 so if there's a conflict, we now throw out the old one to achieve
6488 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6489 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6490 some routines that use cipher OIDs: some ciphers do not have OIDs
6491 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6495 *) Simplify the trust setting structure and code. Now we just have
6496 two sequences of OIDs for trusted and rejected settings. These will
6497 typically have values the same as the extended key usage extension
6498 and any application specific purposes.
6500 The trust checking code now has a default behaviour: it will just
6501 check for an object with the same NID as the passed id. Functions can
6502 be provided to override either the default behaviour or the behaviour
6503 for a given id. SSL client, server and email already have functions
6504 in place for compatibility: they check the NID and also return "trusted"
6505 if the certificate is self signed.
6508 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6509 traditional format into an EVP_PKEY structure.
6512 *) Add a password callback function PEM_cb() which either prompts for
6513 a password if usr_data is NULL or otherwise assumes it is a null
6514 terminated password. Allow passwords to be passed on command line
6515 environment or config files in a few more utilities.
6518 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6519 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6520 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6521 Update documentation.
6524 *) Support for ASN1 "NULL" type. This could be handled before by using
6525 ASN1_TYPE but there wasn't any function that would try to read a NULL
6526 and produce an error if it couldn't. For compatibility we also have
6527 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6528 don't allocate anything because they don't need to.
6531 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6533 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6535 *) Rebuild of the memory allocation routines used by OpenSSL code and
6536 possibly others as well. The purpose is to make an interface that
6537 provide hooks so anyone can build a separate set of allocation and
6538 deallocation routines to be used by OpenSSL, for example memory
6539 pool implementations, or something else, which was previously hard
6540 since Malloc(), Realloc() and Free() were defined as macros having
6541 the values malloc, realloc and free, respectively (except for Win32
6542 compilations). The same is provided for memory debugging code.
6543 OpenSSL already comes with functionality to find memory leaks, but
6544 this gives people a chance to debug other memory problems.
6546 With these changes, a new set of functions and macros have appeared:
6548 CRYPTO_set_mem_debug_functions() [F]
6549 CRYPTO_get_mem_debug_functions() [F]
6550 CRYPTO_dbg_set_options() [F]
6551 CRYPTO_dbg_get_options() [F]
6552 CRYPTO_malloc_debug_init() [M]
6554 The memory debug functions are NULL by default, unless the library
6555 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6556 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6557 gives the standard debugging functions that come with OpenSSL) or
6558 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6559 provided by the library user) must be used. When the standard
6560 debugging functions are used, CRYPTO_dbg_set_options can be used to
6561 request additional information:
6562 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6563 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6565 Also, things like CRYPTO_set_mem_functions will always give the
6566 expected result (the new set of functions is used for allocation
6567 and deallocation) at all times, regardless of platform and compiler
6570 To finish it up, some functions that were never use in any other
6571 way than through macros have a new API and new semantic:
6574 CRYPTO_dbg_realloc()
6577 All macros of value have retained their old syntax.
6578 [Richard Levitte and Bodo Moeller]
6580 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6581 ordering of SMIMECapabilities wasn't in "strength order" and there
6582 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6586 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6587 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6588 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6590 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6591 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6592 functionality to handle multipart/signed properly) and a utility
6593 called 'smime' to call all this stuff. This is based on code I
6594 originally wrote for Celo who have kindly allowed it to be
6595 included in OpenSSL.
6598 *) Add variants des_set_key_checked and des_set_key_unchecked of
6599 des_set_key (aka des_key_sched). Global variable des_check_key
6600 decides which of these is called by des_set_key; this way
6601 des_check_key behaves as it always did, but applications and
6602 the library itself, which was buggy for des_check_key == 1,
6603 have a cleaner way to pick the version they need.
6606 *) New function PKCS12_newpass() which changes the password of a
6610 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6611 dynamic mix. In both cases the ids can be used as an index into the
6612 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6613 functions so they accept a list of the field values and the
6614 application doesn't need to directly manipulate the X509_TRUST
6618 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6622 *) Modify the way the V3 extension code looks up extensions. This now
6623 works in a similar way to the object code: we have some "standard"
6624 extensions in a static table which is searched with OBJ_bsearch()
6625 and the application can add dynamic ones if needed. The file
6626 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6627 updated whenever a new extension is added to the core code and kept
6628 in ext_nid order. There is a simple program 'tabtest.c' which checks
6629 this. New extensions are not added too often so this file can readily
6630 be maintained manually.
6632 There are two big advantages in doing things this way. The extensions
6633 can be looked up immediately and no longer need to be "added" using
6634 X509V3_add_standard_extensions(): this function now does nothing.
6635 [Side note: I get *lots* of email saying the extension code doesn't
6636 work because people forget to call this function]
6637 Also no dynamic allocation is done unless new extensions are added:
6638 so if we don't add custom extensions there is no need to call
6639 X509V3_EXT_cleanup().
6642 *) Modify enc utility's salting as follows: make salting the default. Add a
6643 magic header, so unsalted files fail gracefully instead of just decrypting
6644 to garbage. This is because not salting is a big security hole, so people
6645 should be discouraged from doing it.
6648 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6649 digest to be passed on the command line but it only used this
6650 parameter when signing a certificate. Modified so all relevant
6651 operations are affected by the digest parameter including the
6652 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6653 DSA key was used because it didn't fix the digest.
6656 *) Initial certificate chain verify code. Currently tests the untrusted
6657 certificates for consistency with the verify purpose (which is set
6658 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6660 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6661 this is because it will reject chains with invalid extensions whereas
6662 every previous version of OpenSSL and SSLeay made no checks at all.
6664 Trust code: checks the root CA for the relevant trust settings. Trust
6665 settings have an initial value consistent with the verify purpose: e.g.
6666 if the verify purpose is for SSL client use it expects the CA to be
6667 trusted for SSL client use. However the default value can be changed to
6668 permit custom trust settings: one example of this would be to only trust
6669 certificates from a specific "secure" set of CAs.
6671 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6672 which should be used for version portability: especially since the
6673 verify structure is likely to change more often now.
6675 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6676 to set them. If not set then assume SSL clients will verify SSL servers
6679 Two new options to the verify program: -untrusted allows a set of
6680 untrusted certificates to be passed in and -purpose which sets the
6681 intended purpose of the certificate. If a purpose is set then the
6682 new chain verify code is used to check extension consistency.
6685 *) Support for the authority information access extension.
6688 *) Modify RSA and DSA PEM read routines to transparently handle
6689 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6690 public keys in a format compatible with certificate
6691 SubjectPublicKeyInfo structures. Unfortunately there were already
6692 functions called *_PublicKey_* which used various odd formats so
6693 these are retained for compatibility: however the DSA variants were
6694 never in a public release so they have been deleted. Changed dsa/rsa
6695 utilities to handle the new format: note no releases ever handled public
6696 keys so we should be OK.
6698 The primary motivation for this change is to avoid the same fiasco
6699 that dogs private keys: there are several incompatible private key
6700 formats some of which are standard and some OpenSSL specific and
6701 require various evil hacks to allow partial transparent handling and
6702 even then it doesn't work with DER formats. Given the option anything
6703 other than PKCS#8 should be dumped: but the other formats have to
6704 stay in the name of compatibility.
6706 With public keys and the benefit of hindsight one standard format
6707 is used which works with EVP_PKEY, RSA or DSA structures: though
6708 it clearly returns an error if you try to read the wrong kind of key.
6710 Added a -pubkey option to the 'x509' utility to output the public key.
6711 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6712 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6713 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6714 that do the same as the EVP_PKEY_assign_*() except they up the
6715 reference count of the added key (they don't "swallow" the
6719 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6720 CRLs would fail if the file contained no certificates or no CRLs:
6721 added a new function to read in both types and return the number
6722 read: this means that if none are read it will be an error. The
6723 DER versions of the certificate and CRL reader would always fail
6724 because it isn't possible to mix certificates and CRLs in DER format
6725 without choking one or the other routine. Changed this to just read
6726 a certificate: this is the best we can do. Also modified the code
6727 in apps/verify.c to take notice of return codes: it was previously
6728 attempting to read in certificates from NULL pointers and ignoring
6729 any errors: this is one reason why the cert and CRL reader seemed
6730 to work. It doesn't check return codes from the default certificate
6731 routines: these may well fail if the certificates aren't installed.
6734 *) Code to support otherName option in GeneralName.
6737 *) First update to verify code. Change the verify utility
6738 so it warns if it is passed a self signed certificate:
6739 for consistency with the normal behaviour. X509_verify
6740 has been modified to it will now verify a self signed
6741 certificate if *exactly* the same certificate appears
6742 in the store: it was previously impossible to trust a
6743 single self signed certificate. This means that:
6744 openssl verify ss.pem
6745 now gives a warning about a self signed certificate but
6746 openssl verify -CAfile ss.pem ss.pem
6750 *) For servers, store verify_result in SSL_SESSION data structure
6751 (and add it to external session representation).
6752 This is needed when client certificate verifications fails,
6753 but an application-provided verification callback (set by
6754 SSL_CTX_set_cert_verify_callback) allows accepting the session
6755 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6756 but returns 1): When the session is reused, we have to set
6757 ssl->verify_result to the appropriate error code to avoid
6759 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6761 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6762 case in PKCS7_dataInit() where the signed PKCS7 structure
6763 didn't contain any existing data because it was being created.
6764 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6766 *) Add a salt to the key derivation routines in enc.c. This
6767 forms the first 8 bytes of the encrypted file. Also add a
6768 -S option to allow a salt to be input on the command line.
6771 *) New function X509_cmp(). Oddly enough there wasn't a function
6772 to compare two certificates. We do this by working out the SHA1
6773 hash and comparing that. X509_cmp() will be needed by the trust
6777 *) SSL_get1_session() is like SSL_get_session(), but increments
6778 the reference count in the SSL_SESSION returned.
6779 [Geoff Thorpe <geoff@eu.c2.net>]
6781 *) Fix for 'req': it was adding a null to request attributes.
6782 Also change the X509_LOOKUP and X509_INFO code to handle
6783 certificate auxiliary information.
6786 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6790 *) Add the possibility to add extra information to the memory leak
6791 detecting output, to form tracebacks, showing from where each
6792 allocation was originated: CRYPTO_push_info("constant string") adds
6793 the string plus current file name and line number to a per-thread
6794 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6795 is like calling CYRPTO_pop_info() until the stack is empty.
6796 Also updated memory leak detection code to be multi-thread-safe.
6799 *) Add options -text and -noout to pkcs7 utility and delete the
6800 encryption options which never did anything. Update docs.
6803 *) Add options to some of the utilities to allow the pass phrase
6804 to be included on either the command line (not recommended on
6805 OSes like Unix) or read from the environment. Update the
6806 manpages and fix a few bugs.
6809 *) Add a few manpages for some of the openssl commands.
6812 *) Fix the -revoke option in ca. It was freeing up memory twice,
6813 leaking and not finding already revoked certificates.
6816 *) Extensive changes to support certificate auxiliary information.
6817 This involves the use of X509_CERT_AUX structure and X509_AUX
6818 functions. An X509_AUX function such as PEM_read_X509_AUX()
6819 can still read in a certificate file in the usual way but it
6820 will also read in any additional "auxiliary information". By
6821 doing things this way a fair degree of compatibility can be
6822 retained: existing certificates can have this information added
6823 using the new 'x509' options.
6825 Current auxiliary information includes an "alias" and some trust
6826 settings. The trust settings will ultimately be used in enhanced
6827 certificate chain verification routines: currently a certificate
6828 can only be trusted if it is self signed and then it is trusted
6832 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6833 The problem was that one of the replacement routines had not been working
6834 since SSLeay releases. For now the offending routine has been replaced
6835 with non-optimised assembler. Even so, this now gives around 95%
6836 performance improvement for 1024 bit RSA signs.
6839 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6840 handling. Most clients have the effective key size in bits equal to
6841 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6842 A few however don't do this and instead use the size of the decrypted key
6843 to determine the RC2 key length and the AlgorithmIdentifier to determine
6844 the effective key length. In this case the effective key length can still
6845 be 40 bits but the key length can be 168 bits for example. This is fixed
6846 by manually forcing an RC2 key into the EVP_PKEY structure because the
6847 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6848 the key length and effective key length are equal.
6851 *) Add a bunch of functions that should simplify the creation of
6852 X509_NAME structures. Now you should be able to do:
6853 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6854 and have it automatically work out the correct field type and fill in
6855 the structures. The more adventurous can try:
6856 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6857 and it will (hopefully) work out the correct multibyte encoding.
6860 *) Change the 'req' utility to use the new field handling and multibyte
6861 copy routines. Before the DN field creation was handled in an ad hoc
6862 way in req, ca, and x509 which was rather broken and didn't support
6863 BMPStrings or UTF8Strings. Since some software doesn't implement
6864 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6865 using the dirstring_type option. See the new comment in the default
6866 openssl.cnf for more info.
6869 *) Make crypto/rand/md_rand.c more robust:
6870 - Assure unique random numbers after fork().
6871 - Make sure that concurrent threads access the global counter and
6872 md serializably so that we never lose entropy in them
6873 or use exactly the same state in multiple threads.
6874 Access to the large state is not always serializable because
6875 the additional locking could be a performance killer, and
6876 md should be large enough anyway.
6879 *) New file apps/app_rand.c with commonly needed functionality
6880 for handling the random seed file.
6882 Use the random seed file in some applications that previously did not:
6884 dsaparam -genkey (which also ignored its '-rand' option),
6887 x509 (when signing).
6888 Except on systems with /dev/urandom, it is crucial to have a random
6889 seed file at least for key creation, DSA signing, and for DH exchanges;
6890 for RSA signatures we could do without one.
6892 gendh and gendsa (unlike genrsa) used to read only the first byte
6893 of each file listed in the '-rand' option. The function as previously
6894 found in genrsa is now in app_rand.c and is used by all programs
6895 that support '-rand'.
6898 *) In RAND_write_file, use mode 0600 for creating files;
6899 don't just chmod when it may be too late.
6902 *) Report an error from X509_STORE_load_locations
6903 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6906 *) New function ASN1_mbstring_copy() this copies a string in either
6907 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6908 into an ASN1_STRING type. A mask of permissible types is passed
6909 and it chooses the "minimal" type to use or an error if not type
6913 *) Add function equivalents to the various macros in asn1.h. The old
6914 macros are retained with an M_ prefix. Code inside the library can
6915 use the M_ macros. External code (including the openssl utility)
6916 should *NOT* in order to be "shared library friendly".
6919 *) Add various functions that can check a certificate's extensions
6920 to see if it usable for various purposes such as SSL client,
6921 server or S/MIME and CAs of these types. This is currently
6922 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6923 verification. Also added a -purpose flag to x509 utility to
6924 print out all the purposes.
6927 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6931 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6932 for, obtain and decode and extension and obtain its critical flag.
6933 This allows all the necessary extension code to be handled in a
6934 single function call.
6937 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6938 platforms. See crypto/rc4/rc4_enc.c for further details.
6941 *) New -noout option to asn1parse. This causes no output to be produced
6942 its main use is when combined with -strparse and -out to extract data
6943 from a file (which may not be in ASN.1 format).
6946 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6947 when producing the local key id.
6948 [Richard Levitte <levitte@stacken.kth.se>]
6950 *) New option -dhparam in s_server. This allows a DH parameter file to be
6951 stated explicitly. If it is not stated then it tries the first server
6952 certificate file. The previous behaviour hard coded the filename
6956 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6957 a public key to be input or output. For example:
6958 openssl rsa -in key.pem -pubout -out pubkey.pem
6959 Also added necessary DSA public key functions to handle this.
6962 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6963 in the message. This was handled by allowing
6964 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6965 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6967 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6968 to the end of the strings whereas this didn't. This would cause problems
6969 if strings read with d2i_ASN1_bytes() were later modified.
6970 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6972 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6973 data and it contains EOF it will end up returning an error. This is
6974 caused by input 46 bytes long. The cause is due to the way base64
6975 BIOs find the start of base64 encoded data. They do this by trying a
6976 trial decode on each line until they find one that works. When they
6977 do a flag is set and it starts again knowing it can pass all the
6978 data directly through the decoder. Unfortunately it doesn't reset
6979 the context it uses. This means that if EOF is reached an attempt
6980 is made to pass two EOFs through the context and this causes the
6981 resulting error. This can also cause other problems as well. As is
6982 usual with these problems it takes *ages* to find and the fix is
6983 trivial: move one line.
6984 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6986 *) Ugly workaround to get s_client and s_server working under Windows. The
6987 old code wouldn't work because it needed to select() on sockets and the
6988 tty (for keypresses and to see if data could be written). Win32 only
6989 supports select() on sockets so we select() with a 1s timeout on the
6990 sockets and then see if any characters are waiting to be read, if none
6991 are present then we retry, we also assume we can always write data to
6992 the tty. This isn't nice because the code then blocks until we've
6993 received a complete line of data and it is effectively polling the
6994 keyboard at 1s intervals: however it's quite a bit better than not
6995 working at all :-) A dedicated Windows application might handle this
6996 with an event loop for example.
6999 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7000 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7001 will be called when RSA_sign() and RSA_verify() are used. This is useful
7002 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7003 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7004 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7005 This necessitated the support of an extra signature type NID_md5_sha1
7006 for SSL signatures and modifications to the SSL library to use it instead
7007 of calling RSA_public_decrypt() and RSA_private_encrypt().
7010 *) Add new -verify -CAfile and -CApath options to the crl program, these
7011 will lookup a CRL issuers certificate and verify the signature in a
7012 similar way to the verify program. Tidy up the crl program so it
7013 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7014 less strict. It will now permit CRL extensions even if it is not
7015 a V2 CRL: this will allow it to tolerate some broken CRLs.
7018 *) Initialize all non-automatic variables each time one of the openssl
7019 sub-programs is started (this is necessary as they may be started
7020 multiple times from the "OpenSSL>" prompt).
7021 [Lennart Bang, Bodo Moeller]
7023 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7024 removing all other RSA functionality (this is what NO_RSA does). This
7025 is so (for example) those in the US can disable those operations covered
7026 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7030 *) Non-copying interface to BIO pairs.
7031 (still largely untested)
7034 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7035 ASCII string. This was handled independently in various places before.
7038 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7039 UTF8 strings a character at a time.
7042 *) Use client_version from client hello to select the protocol
7043 (s23_srvr.c) and for RSA client key exchange verification
7044 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7047 *) Add various utility functions to handle SPKACs, these were previously
7048 handled by poking round in the structure internals. Added new function
7049 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7050 print, verify and generate SPKACs. Based on an original idea from
7051 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7054 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7057 *) Allow the config file extension section to be overwritten on the
7058 command line. Based on an original idea from Massimiliano Pala
7059 <madwolf@comune.modena.it>. The new option is called -extensions
7060 and can be applied to ca, req and x509. Also -reqexts to override
7061 the request extensions in req and -crlexts to override the crl extensions
7065 *) Add new feature to the SPKAC handling in ca. Now you can include
7066 the same field multiple times by preceding it by "XXXX." for example:
7069 this is the same syntax as used in the req config file.
7072 *) Allow certificate extensions to be added to certificate requests. These
7073 are specified in a 'req_extensions' option of the req section of the
7074 config file. They can be printed out with the -text option to req but
7075 are otherwise ignored at present.
7078 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7079 data read consists of only the final block it would not decrypted because
7080 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7081 A misplaced 'break' also meant the decrypted final block might not be
7082 copied until the next read.
7085 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7086 a few extra parameters to the DH structure: these will be useful if
7087 for example we want the value of 'q' or implement X9.42 DH.
7090 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7091 provides hooks that allow the default DSA functions or functions on a
7092 "per key" basis to be replaced. This allows hardware acceleration and
7093 hardware key storage to be handled without major modification to the
7094 library. Also added low level modexp hooks and CRYPTO_EX structure and
7095 associated functions.
7098 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7099 as "read only": it can't be written to and the buffer it points to will
7100 not be freed. Reading from a read only BIO is much more efficient than
7101 a normal memory BIO. This was added because there are several times when
7102 an area of memory needs to be read from a BIO. The previous method was
7103 to create a memory BIO and write the data to it, this results in two
7104 copies of the data and an O(n^2) reading algorithm. There is a new
7105 function BIO_new_mem_buf() which creates a read only memory BIO from
7106 an area of memory. Also modified the PKCS#7 routines to use read only
7110 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7111 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7112 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7113 but a retry condition occured while trying to read the rest.
7116 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7117 NID_pkcs7_encrypted by default: this was wrong since this should almost
7118 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7119 the encrypted data type: this is a more sensible place to put it and it
7120 allows the PKCS#12 code to be tidied up that duplicated this
7124 *) Changed obj_dat.pl script so it takes its input and output files on
7125 the command line. This should avoid shell escape redirection problems
7129 *) Initial support for certificate extension requests, these are included
7130 in things like Xenroll certificate requests. Included functions to allow
7131 extensions to be obtained and added.
7134 *) -crlf option to s_client and s_server for sending newlines as
7135 CRLF (as required by many protocols).
7138 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7140 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7141 [Ralf S. Engelschall]
7143 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7144 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7146 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7150 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7151 DH parameters/keys (q is lost during that conversion, but the resulting
7152 DH parameters contain its length).
7154 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7155 much faster than DH_generate_parameters (which creates parameters
7156 where p = 2*q + 1), and also the smaller q makes DH computations
7157 much more efficient (160-bit exponentiation instead of 1024-bit
7158 exponentiation); so this provides a convenient way to support DHE
7159 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7160 utter importance to use
7161 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7163 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7164 when such DH parameters are used, because otherwise small subgroup
7165 attacks may become possible!
7168 *) Avoid memory leak in i2d_DHparams.
7171 *) Allow the -k option to be used more than once in the enc program:
7172 this allows the same encrypted message to be read by multiple recipients.
7175 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7176 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7177 it will always use the numerical form of the OID, even if it has a short
7181 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7182 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7183 otherwise bn_mod_exp was called. In the case of hardware keys for example
7184 no private key components need be present and it might store extra data
7185 in the RSA structure, which cannot be accessed from bn_mod_exp.
7186 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7187 private key operations.
7190 *) Added support for SPARC Linux.
7193 *) pem_password_cb function type incompatibly changed from
7194 typedef int pem_password_cb(char *buf, int size, int rwflag);
7196 ....(char *buf, int size, int rwflag, void *userdata);
7197 so that applications can pass data to their callbacks:
7198 The PEM[_ASN1]_{read,write}... functions and macros now take an
7199 additional void * argument, which is just handed through whenever
7200 the password callback is called.
7201 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7203 New function SSL_CTX_set_default_passwd_cb_userdata.
7205 Compatibility note: As many C implementations push function arguments
7206 onto the stack in reverse order, the new library version is likely to
7207 interoperate with programs that have been compiled with the old
7208 pem_password_cb definition (PEM_whatever takes some data that
7209 happens to be on the stack as its last argument, and the callback
7210 just ignores this garbage); but there is no guarantee whatsoever that
7213 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7214 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7215 problems not only on Windows, but also on some Unix platforms.
7216 To avoid problematic command lines, these definitions are now in an
7217 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7218 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7221 *) MIPS III/IV assembler module is reimplemented.
7224 *) More DES library cleanups: remove references to srand/rand and
7225 delete an unused file.
7228 *) Add support for the the free Netwide assembler (NASM) under Win32,
7229 since not many people have MASM (ml) and it can be hard to obtain.
7230 This is currently experimental but it seems to work OK and pass all
7231 the tests. Check out INSTALL.W32 for info.
7234 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7235 without temporary keys kept an extra copy of the server key,
7236 and connections with temporary keys did not free everything in case
7240 *) New function RSA_check_key and new openssl rsa option -check
7241 for verifying the consistency of RSA keys.
7242 [Ulf Moeller, Bodo Moeller]
7244 *) Various changes to make Win32 compile work:
7245 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7246 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7247 comparison" warnings.
7248 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7251 *) Add a debugging option to PKCS#5 v2 key generation function: when
7252 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7253 derived keys are printed to stderr.
7256 *) Copy the flags in ASN1_STRING_dup().
7257 [Roman E. Pavlov <pre@mo.msk.ru>]
7259 *) The x509 application mishandled signing requests containing DSA
7260 keys when the signing key was also DSA and the parameters didn't match.
7262 It was supposed to omit the parameters when they matched the signing key:
7263 the verifying software was then supposed to automatically use the CA's
7264 parameters if they were absent from the end user certificate.
7266 Omitting parameters is no longer recommended. The test was also
7267 the wrong way round! This was probably due to unusual behaviour in
7268 EVP_cmp_parameters() which returns 1 if the parameters match.
7269 This meant that parameters were omitted when they *didn't* match and
7270 the certificate was useless. Certificates signed with 'ca' didn't have
7272 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7274 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7275 The interface is as follows:
7276 Applications can use
7277 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7278 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7279 "off" is now the default.
7280 The library internally uses
7281 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7282 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7283 to disable memory-checking temporarily.
7285 Some inconsistent states that previously were possible (and were
7286 even the default) are now avoided.
7288 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7289 with each memory chunk allocated; this is occasionally more helpful
7290 than just having a counter.
7292 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7294 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7298 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7299 which largely parallels "options", but is for changing API behaviour,
7300 whereas "options" are about protocol behaviour.
7301 Initial "mode" flags are:
7303 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7304 a single record has been written.
7305 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7306 retries use the same buffer location.
7307 (But all of the contents must be
7311 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7314 *) Fix problems with no-hmac etc.
7315 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7317 *) New functions RSA_get_default_method(), RSA_set_method() and
7318 RSA_get_method(). These allows replacement of RSA_METHODs without having
7319 to mess around with the internals of an RSA structure.
7322 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7323 Also really enable memory leak checks in openssl.c and in some
7325 [Chad C. Mulligan, Bodo Moeller]
7327 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7328 up the length of negative integers. This has now been simplified to just
7329 store the length when it is first determined and use it later, rather
7330 than trying to keep track of where data is copied and updating it to
7332 [Steve Henson, reported by Brien Wheeler
7333 <bwheeler@authentica-security.com>]
7335 *) Add a new function PKCS7_signatureVerify. This allows the verification
7336 of a PKCS#7 signature but with the signing certificate passed to the
7337 function itself. This contrasts with PKCS7_dataVerify which assumes the
7338 certificate is present in the PKCS#7 structure. This isn't always the
7339 case: certificates can be omitted from a PKCS#7 structure and be
7340 distributed by "out of band" means (such as a certificate database).
7343 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7344 function prototypes in pem.h, also change util/mkdef.pl to add the
7345 necessary function names.
7348 *) mk1mf.pl (used by Windows builds) did not properly read the
7349 options set by Configure in the top level Makefile, and Configure
7350 was not even able to write more than one option correctly.
7351 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7354 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7355 file to be loaded from a BIO or FILE pointer. The BIO version will
7356 for example allow memory BIOs to contain config info.
7359 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7360 Whoever hopes to achieve shared-library compatibility across versions
7361 must use this, not the compile-time macro.
7362 (Exercise 0.9.4: Which is the minimum library version required by
7364 Note: All this applies only to multi-threaded programs, others don't
7368 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7369 through a BIO pair triggered the default case, i.e.
7370 SSLerr(...,SSL_R_UNKNOWN_STATE).
7373 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7374 can use the SSL library even if none of the specific BIOs is
7378 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7379 for the encoded length.
7380 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7382 *) Add initial documentation of the X509V3 functions.
7385 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7386 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7387 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7388 secure PKCS#8 private key format with a high iteration count.
7391 *) Fix determination of Perl interpreter: A perl or perl5
7392 _directory_ in $PATH was also accepted as the interpreter.
7393 [Ralf S. Engelschall]
7395 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7396 wrong with it but it was very old and did things like calling
7397 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7401 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7402 to use the new extension code.
7405 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7406 with macros. This should make it easier to change their form, add extra
7407 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7411 *) Add to configuration table a new entry that can specify an alternative
7412 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7413 according to Mark Crispin <MRC@Panda.COM>.
7417 *) DES CBC did not update the IV. Weird.
7420 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7421 Changing the behaviour of the former might break existing programs --
7422 where IV updating is needed, des_ncbc_encrypt can be used.
7425 *) When bntest is run from "make test" it drives bc to check its
7426 calculations, as well as internally checking them. If an internal check
7427 fails, it needs to cause bc to give a non-zero result or make test carries
7428 on without noticing the failure. Fixed.
7431 *) DES library cleanups.
7434 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7435 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7436 ciphers. NOTE: although the key derivation function has been verified
7437 against some published test vectors it has not been extensively tested
7438 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7442 *) Instead of "mkdir -p", which is not fully portable, use new
7443 Perl script "util/mkdir-p.pl".
7446 *) Rewrite the way password based encryption (PBE) is handled. It used to
7447 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7448 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7449 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7450 the 'parameter' field of the AlgorithmIdentifier is passed to the
7451 underlying key generation function so it must do its own ASN1 parsing.
7452 This has also changed the EVP_PBE_CipherInit() function which now has a
7453 'parameter' argument instead of literal salt and iteration count values
7454 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7457 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7458 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7459 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7460 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7461 value was just used as a "magic string" and not used directly its
7462 value doesn't matter.
7465 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7469 *) "linux-sparc64" configuration (ultrapenguin).
7470 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7471 "linux-sparc" configuration.
7472 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7474 *) config now generates no-xxx options for missing ciphers.
7477 *) Support the EBCDIC character set (work in progress).
7478 File ebcdic.c not yet included because it has a different license.
7479 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7481 *) Support BS2000/OSD-POSIX.
7482 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7484 *) Make callbacks for key generation use void * instead of char *.
7487 *) Make S/MIME samples compile (not yet tested).
7490 *) Additional typesafe stacks.
7493 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7497 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7499 *) New configuration variant "sco5-gcc".
7501 *) Updated some demos.
7502 [Sean O Riordain, Wade Scholine]
7504 *) Add missing BIO_free at exit of pkcs12 application.
7507 *) Fix memory leak in conf.c.
7510 *) Updates for Win32 to assembler version of MD5.
7513 *) Set #! path to perl in apps/der_chop to where we found it
7514 instead of using a fixed path.
7517 *) SHA library changes for irix64-mips4-cc.
7520 *) Improvements for VMS support.
7524 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7526 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7527 This also avoids the problems with SC4.2 and unpatched SC5.
7528 [Andy Polyakov <appro@fy.chalmers.se>]
7530 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7531 These are required because of the typesafe stack would otherwise break
7532 existing code. If old code used a structure member which used to be STACK
7533 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7534 sk_num or sk_value it would produce an error because the num, data members
7535 are not present in STACK_OF. Now it just produces a warning. sk_set
7536 replaces the old method of assigning a value to sk_value
7537 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7538 that does this will no longer work (and should use sk_set instead) but
7539 this could be regarded as a "questionable" behaviour anyway.
7542 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7543 correctly handle encrypted S/MIME data.
7546 *) Change type of various DES function arguments from des_cblock
7547 (which means, in function argument declarations, pointer to char)
7548 to des_cblock * (meaning pointer to array with 8 char elements),
7549 which allows the compiler to do more typechecking; it was like
7550 that back in SSLeay, but with lots of ugly casts.
7552 Introduce new type const_des_cblock.
7555 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7556 problems: find RecipientInfo structure that matches recipient certificate
7557 and initialise the ASN1 structures properly based on passed cipher.
7560 *) Belatedly make the BN tests actually check the results.
7563 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7564 to and from BNs: it was completely broken. New compilation option
7565 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7566 key elements as negative integers.
7569 *) Reorganize and speed up MD5.
7570 [Andy Polyakov <appro@fy.chalmers.se>]
7573 [Richard Levitte <richard@levitte.org>]
7575 *) New option -out to asn1parse to allow the parsed structure to be
7576 output to a file. This is most useful when combined with the -strparse
7577 option to examine the output of things like OCTET STRINGS.
7580 *) Make SSL library a little more fool-proof by not requiring any longer
7581 that SSL_set_{accept,connect}_state be called before
7582 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7583 in many applications because usually everything *appeared* to work as
7584 intended anyway -- now it really works as intended).
7587 *) Move openssl.cnf out of lib/.
7590 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7591 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7592 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7593 [Ralf S. Engelschall]
7595 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7596 handle PKCS#7 enveloped data properly.
7597 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7599 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7600 copying pointers. The cert_st handling is changed by this in
7601 various ways (and thus what used to be known as ctx->default_cert
7602 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7603 any longer when s->cert does not give us what we need).
7604 ssl_cert_instantiate becomes obsolete by this change.
7605 As soon as we've got the new code right (possibly it already is?),
7606 we have solved a couple of bugs of the earlier code where s->cert
7607 was used as if it could not have been shared with other SSL structures.
7609 Note that using the SSL API in certain dirty ways now will result
7610 in different behaviour than observed with earlier library versions:
7611 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7612 does not influence s as it used to.
7614 In order to clean up things more thoroughly, inside SSL_SESSION
7615 we don't use CERT any longer, but a new structure SESS_CERT
7616 that holds per-session data (if available); currently, this is
7617 the peer's certificate chain and, for clients, the server's certificate
7618 and temporary key. CERT holds only those values that can have
7619 meaningful defaults in an SSL_CTX.
7622 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7623 from the internal representation. Various PKCS#7 fixes: remove some
7624 evil casts and set the enc_dig_alg field properly based on the signing
7628 *) Allow PKCS#12 password to be set from the command line or the
7629 environment. Let 'ca' get its config file name from the environment
7630 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7634 *) Allow certificate policies extension to use an IA5STRING for the
7635 organization field. This is contrary to the PKIX definition but
7636 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7640 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7641 without disallowing inline assembler and the like for non-pedantic builds.
7644 *) Support Borland C++ builder.
7645 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7650 *) SHA-1 cleanups and performance enhancements.
7651 [Andy Polyakov <appro@fy.chalmers.se>]
7653 *) Sparc v8plus assembler for the bignum library.
7654 [Andy Polyakov <appro@fy.chalmers.se>]
7656 *) Accept any -xxx and +xxx compiler options in Configure.
7659 *) Update HPUX configuration.
7662 *) Add missing sk_<type>_unshift() function to safestack.h
7663 [Ralf S. Engelschall]
7665 *) New function SSL_CTX_use_certificate_chain_file that sets the
7666 "extra_cert"s in addition to the certificate. (This makes sense
7667 only for "PEM" format files, as chains as a whole are not
7671 *) Support verify_depth from the SSL API.
7672 x509_vfy.c had what can be considered an off-by-one-error:
7673 Its depth (which was not part of the external interface)
7674 was actually counting the number of certificates in a chain;
7675 now it really counts the depth.
7678 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7679 instead of X509err, which often resulted in confusing error
7680 messages since the error codes are not globally unique
7681 (e.g. an alleged error in ssl3_accept when a certificate
7682 didn't match the private key).
7684 *) New function SSL_CTX_set_session_id_context that allows to set a default
7685 value (so that you don't need SSL_set_session_id_context for each
7686 connection using the SSL_CTX).
7689 *) OAEP decoding bug fix.
7692 *) Support INSTALL_PREFIX for package builders, as proposed by
7696 *) New Configure options "threads" and "no-threads". For systems
7697 where the proper compiler options are known (currently Solaris
7698 and Linux), "threads" is the default.
7701 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7704 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7705 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7706 such as /usr/local/bin.
7709 *) "make linux-shared" to build shared libraries.
7710 [Niels Poppe <niels@netbox.org>]
7712 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7715 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7716 extension adding in x509 utility.
7719 *) Remove NOPROTO sections and error code comments.
7722 *) Partial rewrite of the DEF file generator to now parse the ANSI
7726 *) New Configure options --prefix=DIR and --openssldir=DIR.
7729 *) Complete rewrite of the error code script(s). It is all now handled
7730 by one script at the top level which handles error code gathering,
7731 header rewriting and C source file generation. It should be much better
7732 than the old method: it now uses a modified version of Ulf's parser to
7733 read the ANSI prototypes in all header files (thus the old K&R definitions
7734 aren't needed for error creation any more) and do a better job of
7735 translating function codes into names. The old 'ASN1 error code imbedded
7736 in a comment' is no longer necessary and it doesn't use .err files which
7737 have now been deleted. Also the error code call doesn't have to appear all
7738 on one line (which resulted in some large lines...).
7741 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7744 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7745 0 (which usually indicates a closed connection), but continue reading.
7748 *) Fix some race conditions.
7751 *) Add support for CRL distribution points extension. Add Certificate
7752 Policies and CRL distribution points documentation.
7755 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7758 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7759 8 of keying material. Merlin has also confirmed interop with this fix
7760 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7761 [Merlin Hughes <merlin@baltimore.ie>]
7763 *) Fix lots of warnings.
7764 [Richard Levitte <levitte@stacken.kth.se>]
7766 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7767 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7768 [Richard Levitte <levitte@stacken.kth.se>]
7770 *) Fix problems with sizeof(long) == 8.
7771 [Andy Polyakov <appro@fy.chalmers.se>]
7773 *) Change functions to ANSI C.
7776 *) Fix typos in error codes.
7777 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7779 *) Remove defunct assembler files from Configure.
7782 *) SPARC v8 assembler BIGNUM implementation.
7783 [Andy Polyakov <appro@fy.chalmers.se>]
7785 *) Support for Certificate Policies extension: both print and set.
7786 Various additions to support the r2i method this uses.
7789 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7790 return a const string when you are expecting an allocated buffer.
7793 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7794 types DirectoryString and DisplayText.
7797 *) Add code to allow r2i extensions to access the configuration database,
7798 add an LHASH database driver and add several ctx helper functions.
7801 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7802 fail when they extended the size of a BIGNUM.
7805 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7806 support typesafe stack.
7809 *) Fix typo in SSL_[gs]et_options().
7810 [Nils Frostberg <nils@medcom.se>]
7812 *) Delete various functions and files that belonged to the (now obsolete)
7813 old X509V3 handling code.
7816 *) New Configure option "rsaref".
7819 *) Don't auto-generate pem.h.
7822 *) Introduce type-safe ASN.1 SETs.
7825 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7826 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7828 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7829 that links with OpenSSL (well at least cause lots of warnings), but fear
7830 not: the conversion is trivial, and it eliminates loads of evil casts. A
7831 few STACKed things have been converted already. Feel free to convert more.
7832 In the fullness of time, I'll do away with the STACK type altogether.
7835 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7836 specified in <certfile> by updating the entry in the index.txt file.
7837 This way one no longer has to edit the index.txt file manually for
7838 revoking a certificate. The -revoke option does the gory details now.
7839 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7841 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7842 `-text' option at all and this way the `-noout -text' combination was
7843 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7844 [Ralf S. Engelschall]
7846 *) Make sure a corresponding plain text error message exists for the
7847 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7848 verify callback function determined that a certificate was revoked.
7849 [Ralf S. Engelschall]
7851 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7852 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7853 all available cipers including rc5, which was forgotten until now.
7854 In order to let the testing shell script know which algorithms
7855 are available, a new (up to now undocumented) command
7856 "openssl list-cipher-commands" is used.
7859 *) Bugfix: s_client occasionally would sleep in select() when
7860 it should have checked SSL_pending() first.
7863 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7864 the raw DSA values prior to ASN.1 encoding.
7867 *) Tweaks to Configure
7868 [Niels Poppe <niels@netbox.org>]
7870 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7874 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7877 *) New config option to avoid instructions that are illegal on the 80386.
7878 The default code is faster, but requires at least a 486.
7881 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7882 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7883 same as SSL2_VERSION anyway.
7886 *) New "-showcerts" option for s_client.
7889 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7890 application. Various cleanups and fixes.
7893 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7894 modify error routines to work internally. Add error codes and PBE init
7895 to library startup routines.
7898 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7899 packing functions to asn1 and evp. Changed function names and error
7900 codes along the way.
7903 *) PKCS12 integration: and so it begins... First of several patches to
7904 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7905 objects to objects.h
7908 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7909 and display support for Thawte strong extranet extension.
7912 *) Add LinuxPPC support.
7913 [Jeff Dubrule <igor@pobox.org>]
7915 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7916 bn_div_words in alpha.s.
7917 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7919 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7920 OAEP isn't supported when OpenSSL is built with RSAref.
7921 [Ulf Moeller <ulf@fitug.de>]
7923 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7924 so they no longer are missing under -DNOPROTO.
7925 [Soren S. Jorvang <soren@t.dk>]
7928 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7930 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7931 doesn't work when the session is reused. Coming soon!
7934 *) Fix a security hole, that allows sessions to be reused in the wrong
7935 context thus bypassing client cert protection! All software that uses
7936 client certs and session caches in multiple contexts NEEDS PATCHING to
7937 allow session reuse! A fuller solution is in the works.
7938 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7940 *) Some more source tree cleanups (removed obsolete files
7941 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7942 permission on "config" script to be executable) and a fix for the INSTALL
7944 [Ulf Moeller <ulf@fitug.de>]
7946 *) Remove some legacy and erroneous uses of malloc, free instead of
7948 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7950 *) Make rsa_oaep_test return non-zero on error.
7951 [Ulf Moeller <ulf@fitug.de>]
7953 *) Add support for native Solaris shared libraries. Configure
7954 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7955 if someone would make that last step automatic.
7956 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7958 *) ctx_size was not built with the right compiler during "make links". Fixed.
7961 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7962 except NULL ciphers". This means the default cipher list will no longer
7963 enable NULL ciphers. They need to be specifically enabled e.g. with
7964 the string "DEFAULT:eNULL".
7967 *) Fix to RSA private encryption routines: if p < q then it would
7968 occasionally produce an invalid result. This will only happen with
7969 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7972 *) Be less restrictive and allow also `perl util/perlpath.pl
7973 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7974 because this way one can also use an interpreter named `perl5' (which is
7975 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7976 installed as `perl').
7977 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7979 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7980 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7982 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7983 advapi32.lib to Win32 build and change the pem test comparision
7984 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7985 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7986 and crypto/des/ede_cbcm_enc.c.
7989 *) DES quad checksum was broken on big-endian architectures. Fixed.
7992 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7993 Win32 test batch file so it (might) work again. The Win32 test batch file
7994 is horrible: I feel ill....
7997 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7998 in e_os.h. Audit of header files to check ANSI and non ANSI
7999 sections: 10 functions were absent from non ANSI section and not exported
8000 from Windows DLLs. Fixed up libeay.num for new functions.
8003 *) Make `openssl version' output lines consistent.
8004 [Ralf S. Engelschall]
8006 *) Fix Win32 symbol export lists for BIO functions: Added
8007 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8008 to ms/libeay{16,32}.def.
8009 [Ralf S. Engelschall]
8011 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8012 fine under Unix and passes some trivial tests I've now added. But the
8013 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8014 added to make sure no one expects that this stuff really works in the
8015 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8016 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8018 [Ralf S. Engelschall]
8020 *) Fix the generation of two part addresses in perl.
8021 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8023 *) Add config entry for Linux on MIPS.
8024 [John Tobey <jtobey@channel1.com>]
8026 *) Make links whenever Configure is run, unless we are on Windoze.
8029 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8030 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8034 *) Add a useful kludge to allow package maintainers to specify compiler and
8035 other platforms details on the command line without having to patch the
8036 Configure script everytime: One now can use ``perl Configure
8037 <id>:<details>'', i.e. platform ids are allowed to have details appended
8038 to them (seperated by colons). This is treated as there would be a static
8039 pre-configured entry in Configure's %table under key <id> with value
8040 <details> and ``perl Configure <id>'' is called. So, when you want to
8041 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8042 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8043 now, which overrides the FreeBSD-elf entry on-the-fly.
8044 [Ralf S. Engelschall]
8046 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8049 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8050 on the `perl Configure ...' command line. This way one can compile
8051 OpenSSL libraries with Position Independent Code (PIC) which is needed
8052 for linking it into DSOs.
8053 [Ralf S. Engelschall]
8055 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8059 *) Cleaned up the LICENSE document: The official contact for any license
8060 questions now is the OpenSSL core team under openssl-core@openssl.org.
8061 And add a paragraph about the dual-license situation to make sure people
8062 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8063 to the OpenSSL toolkit.
8064 [Ralf S. Engelschall]
8066 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8067 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8068 Additonally cleaned up the `make links' target: Remove unnecessary
8069 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8070 to speed processing and no longer clutter the display with confusing
8071 stuff. Instead only the actually done links are displayed.
8072 [Ralf S. Engelschall]
8074 *) Permit null encryption ciphersuites, used for authentication only. It used
8075 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8076 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8080 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8081 signed attributes when verifying signatures (this would break them),
8082 the detached data encoding was wrong and public keys obtained using
8083 X509_get_pubkey() weren't freed.
8086 *) Add text documentation for the BUFFER functions. Also added a work around
8087 to a Win95 console bug. This was triggered by the password read stuff: the
8088 last character typed gets carried over to the next fread(). If you were
8089 generating a new cert request using 'req' for example then the last
8090 character of the passphrase would be CR which would then enter the first
8094 *) Added the new `Includes OpenSSL Cryptography Software' button as
8095 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8096 button and can be used by applications based on OpenSSL to show the
8097 relationship to the OpenSSL project.
8098 [Ralf S. Engelschall]
8100 *) Remove confusing variables in function signatures in files
8101 ssl/ssl_lib.c and ssl/ssl.h.
8102 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8104 *) Don't install bss_file.c under PREFIX/include/
8105 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8107 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8108 functions that return function pointers and has support for NT specific
8109 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8110 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8111 unsigned to signed types: this was killing the Win32 compile.
8114 *) Add new certificate file to stack functions,
8115 SSL_add_dir_cert_subjects_to_stack() and
8116 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8117 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8118 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8119 This means that Apache-SSL and similar packages don't have to mess around
8120 to add as many CAs as they want to the preferred list.
8123 *) Experiment with doxygen documentation. Currently only partially applied to
8125 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8126 openssl.doxy as the configuration file.
8129 *) Get rid of remaining C++-style comments which strict C compilers hate.
8130 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8132 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8133 compiled in by default: it has problems with large keys.
8136 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8137 DH private keys and/or callback functions which directly correspond to
8138 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8139 is needed for applications which have to configure certificates on a
8140 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8142 For the RSA certificate situation is makes no difference, but
8143 for the DSA certificate situation this fixes the "no shared cipher"
8144 problem where the OpenSSL cipher selection procedure failed because the
8145 temporary keys were not overtaken from the context and the API provided
8146 no way to reconfigure them.
8147 The new functions now let applications reconfigure the stuff and they
8148 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8149 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8150 non-public-API function ssl_cert_instantiate() is used as a helper
8151 function and also to reduce code redundancy inside ssl_rsa.c.
8152 [Ralf S. Engelschall]
8154 *) Move s_server -dcert and -dkey options out of the undocumented feature
8155 area because they are useful for the DSA situation and should be
8156 recognized by the users.
8157 [Ralf S. Engelschall]
8159 *) Fix the cipher decision scheme for export ciphers: the export bits are
8160 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8161 SSL_EXP_MASK. So, the original variable has to be used instead of the
8162 already masked variable.
8163 [Richard Levitte <levitte@stacken.kth.se>]
8165 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8166 [Richard Levitte <levitte@stacken.kth.se>]
8168 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8169 from `int' to `unsigned int' because it's a length and initialized by
8170 EVP_DigestFinal() which expects an `unsigned int *'.
8171 [Richard Levitte <levitte@stacken.kth.se>]
8173 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8174 script. Instead use the usual Shell->Perl transition trick.
8175 [Ralf S. Engelschall]
8177 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8178 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8179 -noout -modulus' as it's already the case for `openssl rsa -noout
8180 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8181 currently the public key is printed (a decision which was already done by
8182 `openssl dsa -modulus' in the past) which serves a similar purpose.
8183 Additionally the NO_RSA no longer completely removes the whole -modulus
8184 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8186 [Ralf S. Engelschall]
8188 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8189 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8190 [Arne Ansper <arne@ats.cyber.ee>]
8192 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8193 to be added. Now both 'req' and 'ca' can use new objects defined in the
8197 *) Add cool BIO that does syslog (or event log on NT).
8198 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8200 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8201 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8202 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8203 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8206 *) Add preliminary config info for new extension code.
8209 *) Make RSA_NO_PADDING really use no padding.
8210 [Ulf Moeller <ulf@fitug.de>]
8212 *) Generate errors when private/public key check is done.
8215 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8216 for some CRL extensions and new objects added.
8219 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8220 key usage extension and fuller support for authority key id.
8223 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8224 padding method for RSA, which is recommended for new applications in PKCS
8225 #1 v2.0 (RFC 2437, October 1998).
8226 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8227 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8228 against Bleichbacher's attack on RSA.
8229 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8232 *) Updates to the new SSL compression code
8233 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8235 *) Fix so that the version number in the master secret, when passed
8236 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8237 (because the server will not accept higher), that the version number
8238 is 0x03,0x01, not 0x03,0x00
8239 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8241 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8242 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8243 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8246 *) Support for RAW extensions where an arbitrary extension can be
8247 created by including its DER encoding. See apps/openssl.cnf for
8251 *) Make sure latest Perl versions don't interpret some generated C array
8252 code as Perl array code in the crypto/err/err_genc.pl script.
8253 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8255 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8256 not many people have the assembler. Various Win32 compilation fixes and
8257 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8261 *) Modify configure script 'Configure' to automatically create crypto/date.h
8262 file under Win32 and also build pem.h from pem.org. New script
8263 util/mkfiles.pl to create the MINFO file on environments that can't do a
8264 'make files': perl util/mkfiles.pl >MINFO should work.
8267 *) Major rework of DES function declarations, in the pursuit of correctness
8268 and purity. As a result, many evil casts evaporated, and some weirdness,
8269 too. You may find this causes warnings in your code. Zapping your evil
8270 casts will probably fix them. Mostly.
8273 *) Fix for a typo in asn1.h. Bug fix to object creation script
8274 obj_dat.pl. It considered a zero in an object definition to mean
8275 "end of object": none of the objects in objects.h have any zeros
8276 so it wasn't spotted.
8277 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8279 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8280 Masking (CBCM). In the absence of test vectors, the best I have been able
8281 to do is check that the decrypt undoes the encrypt, so far. Send me test
8282 vectors if you have them.
8285 *) Correct calculation of key length for export ciphers (too much space was
8286 allocated for null ciphers). This has not been tested!
8289 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8290 message is now correct (it understands "crypto" and "ssl" on its
8291 command line). There is also now an "update" option. This will update
8292 the util/ssleay.num and util/libeay.num files with any new functions.
8294 perl util/mkdef.pl crypto ssl update
8295 it will update them.
8298 *) Overhauled the Perl interface (perl/*):
8299 - ported BN stuff to OpenSSL's different BN library
8300 - made the perl/ source tree CVS-aware
8301 - renamed the package from SSLeay to OpenSSL (the files still contain
8302 their history because I've copied them in the repository)
8303 - removed obsolete files (the test scripts will be replaced
8304 by better Test::Harness variants in the future)
8305 [Ralf S. Engelschall]
8307 *) First cut for a very conservative source tree cleanup:
8308 1. merge various obsolete readme texts into doc/ssleay.txt
8309 where we collect the old documents and readme texts.
8310 2. remove the first part of files where I'm already sure that we no
8311 longer need them because of three reasons: either they are just temporary
8312 files which were left by Eric or they are preserved original files where
8313 I've verified that the diff is also available in the CVS via "cvs diff
8314 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8315 the crypto/md/ stuff).
8316 [Ralf S. Engelschall]
8318 *) More extension code. Incomplete support for subject and issuer alt
8319 name, issuer and authority key id. Change the i2v function parameters
8320 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8321 what that's for :-) Fix to ASN1 macro which messed up
8322 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8325 *) Preliminary support for ENUMERATED type. This is largely copied from the
8329 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8330 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8332 *) Make sure `make rehash' target really finds the `openssl' program.
8333 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8335 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8336 like to hear about it if this slows down other processors.
8339 *) Add CygWin32 platform information to Configure script.
8340 [Alan Batie <batie@aahz.jf.intel.com>]
8342 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8343 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8345 *) New program nseq to manipulate netscape certificate sequences
8348 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8352 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8353 but the BN code had some problems that would cause failures when
8354 doing certificate verification and some other functions.
8355 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8357 *) Add ASN1 and PEM code to support netscape certificate sequences.
8360 *) Add ASN1 and PEM code to support netscape certificate sequences.
8363 *) Add several PKIX and private extended key usage OIDs.
8366 *) Modify the 'ca' program to handle the new extension code. Modify
8367 openssl.cnf for new extension format, add comments.
8370 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8371 and add a sample to openssl.cnf so req -x509 now adds appropriate
8375 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8376 error code, add initial support to X509_print() and x509 application.
8379 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8380 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8381 stuff is currently isolated and isn't even compiled yet.
8384 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8385 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8386 Removed the versions check from X509 routines when loading extensions:
8387 this allows certain broken certificates that don't set the version
8388 properly to be processed.
8391 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8392 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8393 can still be regenerated with "make depend".
8396 *) Spelling mistake in C version of CAST-128.
8397 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8399 *) Changes to the error generation code. The perl script err-code.pl
8400 now reads in the old error codes and retains the old numbers, only
8401 adding new ones if necessary. It also only changes the .err files if new
8402 codes are added. The makefiles have been modified to only insert errors
8403 when needed (to avoid needlessly modifying header files). This is done
8404 by only inserting errors if the .err file is newer than the auto generated
8405 C file. To rebuild all the error codes from scratch (the old behaviour)
8406 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8407 or delete all the .err files.
8410 *) CAST-128 was incorrectly implemented for short keys. The C version has
8411 been fixed, but is untested. The assembler versions are also fixed, but
8412 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8413 to regenerate it if needed.
8414 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8415 Hagino <itojun@kame.net>]
8417 *) File was opened incorrectly in randfile.c.
8418 [Ulf Möller <ulf@fitug.de>]
8420 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8421 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8422 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8423 al: it's just almost always a UTCTime. Note this patch adds new error
8424 codes so do a "make errors" if there are problems.
8427 *) Correct Linux 1 recognition in config.
8428 [Ulf Möller <ulf@fitug.de>]
8430 *) Remove pointless MD5 hash when using DSA keys in ca.
8431 [Anonymous <nobody@replay.com>]
8433 *) Generate an error if given an empty string as a cert directory. Also
8434 generate an error if handed NULL (previously returned 0 to indicate an
8435 error, but didn't set one).
8436 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8438 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8441 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8442 parameters. This was causing a warning which killed off the Win32 compile.
8445 *) Remove C++ style comments from crypto/bn/bn_local.h.
8446 [Neil Costigan <neil.costigan@celocom.com>]
8448 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8449 based on a text string, looking up short and long names and finally
8450 "dot" format. The "dot" format stuff didn't work. Added new function
8451 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8452 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8453 OID is not part of the table.
8456 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8457 X509_LOOKUP_by_alias().
8460 *) Sort openssl functions by name.
8463 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8464 encryption from sample DSA keys (in case anyone is interested the password
8468 *) Make _all_ *_free functions accept a NULL pointer.
8469 [Frans Heymans <fheymans@isaserver.be>]
8471 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8473 [Anonymous <nobody@replay.com>]
8475 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8476 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8478 *) Don't blow it for numeric -newkey arguments to apps/req.
8479 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8481 *) Temp key "for export" tests were wrong in s3_srvr.c.
8482 [Anonymous <nobody@replay.com>]
8484 *) Add prototype for temp key callback functions
8485 SSL_CTX_set_tmp_{rsa,dh}_callback().
8488 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8489 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8492 *) X509_name_add_entry() freed the wrong thing after an error.
8493 [Arne Ansper <arne@ats.cyber.ee>]
8495 *) rsa_eay.c would attempt to free a NULL context.
8496 [Arne Ansper <arne@ats.cyber.ee>]
8498 *) BIO_s_socket() had a broken should_retry() on Windoze.
8499 [Arne Ansper <arne@ats.cyber.ee>]
8501 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8502 [Arne Ansper <arne@ats.cyber.ee>]
8504 *) Make sure the already existing X509_STORE->depth variable is initialized
8505 in X509_STORE_new(), but document the fact that this variable is still
8506 unused in the certificate verification process.
8507 [Ralf S. Engelschall]
8509 *) Fix the various library and apps files to free up pkeys obtained from
8510 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8513 *) Fix reference counting in X509_PUBKEY_get(). This makes
8514 demos/maurice/example2.c work, amongst others, probably.
8515 [Steve Henson and Ben Laurie]
8517 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8518 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8519 are no longer created. This way we have a single and consistent command
8520 line interface `openssl <command>', similar to `cvs <command>'.
8521 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8523 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8524 BIT STRING wrapper always have zero unused bits.
8527 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8530 *) Make the top-level INSTALL documentation easier to understand.
8533 *) Makefiles updated to exit if an error occurs in a sub-directory
8534 make (including if user presses ^C) [Paul Sutton]
8536 *) Make Montgomery context stuff explicit in RSA data structure.
8539 *) Fix build order of pem and err to allow for generated pem.h.
8542 *) Fix renumbering bug in X509_NAME_delete_entry().
8545 *) Enhanced the err-ins.pl script so it makes the error library number
8546 global and can add a library name. This is needed for external ASN1 and
8547 other error libraries.
8550 *) Fixed sk_insert which never worked properly.
8553 *) Fix ASN1 macros so they can handle indefinite length construted
8554 EXPLICIT tags. Some non standard certificates use these: they can now
8558 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8559 into a single doc/ssleay.txt bundle. This way the information is still
8560 preserved but no longer messes up this directory. Now it's new room for
8561 the new set of documenation files.
8562 [Ralf S. Engelschall]
8564 *) SETs were incorrectly DER encoded. This was a major pain, because they
8565 shared code with SEQUENCEs, which aren't coded the same. This means that
8566 almost everything to do with SETs or SEQUENCEs has either changed name or
8567 number of arguments.
8568 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8570 *) Fix test data to work with the above.
8573 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8574 was already fixed by Eric for 0.9.1 it seems.
8575 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8577 *) Autodetect FreeBSD3.
8580 *) Fix various bugs in Configure. This affects the following platforms:
8584 unixware-2.0-pentium
8588 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8589 before they are needed.
8592 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8596 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8598 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8599 changed SSLeay to OpenSSL in version strings.
8600 [Ralf S. Engelschall]
8602 *) Some fixups to the top-level documents.
8605 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8606 because the symlink to include/ was missing.
8607 [Ralf S. Engelschall]
8609 *) Incorporated the popular no-RSA/DSA-only patches
8610 which allow to compile a RSA-free SSLeay.
8611 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8613 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8614 when "ssleay" is still not found.
8615 [Ralf S. Engelschall]
8617 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8618 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8620 *) Updated the README file.
8621 [Ralf S. Engelschall]
8623 *) Added various .cvsignore files in the CVS repository subdirs
8624 to make a "cvs update" really silent.
8625 [Ralf S. Engelschall]
8627 *) Recompiled the error-definition header files and added
8628 missing symbols to the Win32 linker tables.
8629 [Ralf S. Engelschall]
8631 *) Cleaned up the top-level documents;
8632 o new files: CHANGES and LICENSE
8633 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8634 o merged COPYRIGHT into LICENSE
8635 o removed obsolete TODO file
8636 o renamed MICROSOFT to INSTALL.W32
8637 [Ralf S. Engelschall]
8639 *) Removed dummy files from the 0.9.1b source tree:
8640 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8641 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8642 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8643 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8644 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8645 [Ralf S. Engelschall]
8647 *) Added various platform portability fixes.
8650 *) The Genesis of the OpenSSL rpject:
8651 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8652 Young and Tim J. Hudson created while they were working for C2Net until
8654 [The OpenSSL Project]
8657 Changes between 0.9.0b and 0.9.1b [not released]
8659 *) Updated a few CA certificates under certs/
8662 *) Changed some BIGNUM api stuff.
8665 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8666 DGUX x86, Linux Alpha, etc.
8669 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8670 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8674 *) Add -strparse option to asn1pars program which parses nested
8676 [Dr Stephen Henson <shenson@bigfoot.com>]
8678 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8681 *) DSA fix for "ca" program.
8684 *) Added "-genkey" option to "dsaparam" program.
8687 *) Added RIPE MD160 (rmd160) message digest.
8690 *) Added -a (all) option to "ssleay version" command.
8693 *) Added PLATFORM define which is the id given to Configure.
8696 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8699 *) Extended the ASN.1 parser routines.
8702 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8705 *) Added a BN_CTX to the BN library.
8708 *) Fixed the weak key values in DES library
8711 *) Changed API in EVP library for cipher aliases.
8714 *) Added support for RC2/64bit cipher.
8717 *) Converted the lhash library to the crypto/mem.c functions.
8720 *) Added more recognized ASN.1 object ids.
8723 *) Added more RSA padding checks for SSL/TLS.
8726 *) Added BIO proxy/filter functionality.
8729 *) Added extra_certs to SSL_CTX which can be used
8730 send extra CA certificates to the client in the CA cert chain sending
8731 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8734 *) Now Fortezza is denied in the authentication phase because
8735 this is key exchange mechanism is not supported by SSLeay at all.
8738 *) Additional PKCS1 checks.
8741 *) Support the string "TLSv1" for all TLS v1 ciphers.
8744 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8745 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8748 *) Fixed a few memory leaks.
8751 *) Fixed various code and comment typos.
8754 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8755 bytes sent in the client random.
8756 [Edward Bishop <ebishop@spyglass.com>]